Appendix A is the APPENDIX A entire use support table for streams

and rivers.

Waterbody ID,

name, size, uses, causes, sources, and

IR category are

included.

Dolores River near Gateway

Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COARCI01_4800 Carrizo Creek 458 MILES FS- Unknown Unknown 1 Tributaries Agriculture, FS-AQ Life Warm 2, FS- Secondary Contact Recreation

COARCI01_4900 Cimarron River - 441.9 MILES FS- Unknown Unknown 1 Mainstem & Agriculture, Tributaries FS-Secondary Contact Recreation, FS-AQ Life Warm 2

COARCI01_5000 Cimarron River - 153.2 MILES FS-Secondary Unknown Unknown 1 North Fork Contact Recreation, FS-AQ Life Warm 2, FS- Agriculture

COARCI02_4800 Carrizo Creek - 98.4 MILES FS-AQ Life Unknown Unknown 1 Mainstem Warm 2, FS- Secondary Contact

Recreation, | FS-Agriculture

COARFO01a_3500 Fountain Creek - 139 MILES FS- E.coli Unknown 5 Source to Monument Agriculture, Creek FS-AQ Life Cold 1, FS- Water Supply, NS-Secondary Contact Recreation

COARFO01b_3500 Severy Creek 3.87 MILES NA-AQ Life Unknown Unknown 3 Cold 1, NA- Water Supply, NA- Agriculture, NA-Primary Contact Recreation

COARFO02A_3500 Fountain Creek - 80.9 MILES FS- E.coli Unknown 5 Monument Creek to Agriculture, II- Hwy 47 AQ Life Warm 2, FS-Water Supply, NS- Primary Contact

Recreation Integrated QualityWater Monitoring and Assessment Report, Appendix A

1 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COARFO02B_3500 Fountain Creek -Hwy 4.6 MILES FS- E.coli Unknown 5 47 to Arkansas River Agriculture, FS-AQ Life Warm 2, FS- Water Supply, NS-Primary Contact Recreation

COARFO03a_3500 Fountain Creek -all 126.2 MILES FS-AQ Life Unknown Unknown 1 tribs on NF or Air Cold 1, FS- Force Academy lands Agriculture, FS-Primary Contact Recreation, FS-Water Supply

COARFO03b_3500 Bear Creek 3.7 MILES NA- Unknown Unknown 3 Agriculture, NA-AQ Life Cold 1, NA- Water Supply, NA-Primary Contact Recreation

COARFO04_3500 Fountain Creek -all 795.00 MILES FS- E.coli Unknown 5 | tribs not on NF or AF Agriculture, Academy lands FS-AQ Life Warm 2, NS- Primary Contact Recreation

COARFO04_3520 Sand Creek 18.89 MILES FS-Primary Unknown Unknown 2 Contact Recreation, II- AQ Life Warm 2, FS- Agriculture

COARFO05_3500 Marshland, Jimmy 2.3 MILES NA- Unknown Unknown 2 Creek & unnamed Agriculture, tributary NA-AQ Life Warm 1, FS- Secondary Contact Recreation

COARFO06_3500 Monument Creek - 26.2 MILES FS- E.coli Unknown 5 NF boundry to Agriculture, Fountain Creek FS-AQ Life Warm 2, FS- Water Supply, NS-Primary Contact

Recreation Integrated QualityWater Monitoring and Assessment Report, Appendix A

2 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COARFO06_3501 Below Mesa Road 1.5 MILES FS- E.coli Unknown 5 Agriculture, NS-Primary Contact Recreation, FS-Water Supply, NS- AQ Life Warm 2

COARLA01A_3400 Arkansas River - 16.2 MILES NS-AQ Life Selenium, Unknown 5 Fountain Creek to Warm 2, NS- Sulfates near Avondale Water Supply, FS-Primary Contact Recreation, FS-Agriculture

COARLA01A_3700 Arkansas River - 3.74 MILES FS- Selenium, Unknown 5 Avondale to Agriculture, Sulfates Canal NS-AQ Life Warm 2, NS- Water Supply, FS-Primary Contact Recreation

COARLA01B_3700 Arkansas River - 82.3 MILES NS-AQ Life Selenium Unknown 5 | Colorado Canal to Warm 2, FS- West of Las Animas Agriculture, FS-Water Supply, FS- Primary Contact Recreation

COARLA01B_4100 Arkansas River - 7.5 MILES NS-AQ Life Selenium Unknown 5 West of Las Animas Warm 2, FS- to J. Martin Reservoir Water Supply, FS-Primary Contact Recreation, FS-Agriculture

COARLA01C_4100 Arkansas River Below 64.2 MILES FS- Selenium, Unknown 5 J. Martin Reservoir Agriculture, Uranium NS-AQ Life Warm 2, NS- Water Supply, FS-Primary Contact Recreation

COARLA02a_3700 Arkansas River 790.6 MILES NA- Unknown Unknown 3 Tributaries Agriculture, NA-AQ Life Warm 2, NA- Secondary Contact

Recreation Integrated QualityWater Monitoring and Assessment Report, Appendix A

3 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COARLA02a_3800 Huerfano River & 1,243.90 MILES FS-Secondary Unknown Unknown 1 Tributaries Contact Recreation, FS-AQ Life Warm 2, FS- Agriculture

COARLA02a_3900 Apishapa River 609.8 MILES FS- Unknown Unknown 1 Tributaries Agriculture, FS-AQ Life Warm 2, FS- Secondary Contact Recreation

COARLA02a_4000 Horse Creek 652.1 MILES FS- Unknown Unknown 1 Agriculture, FS-AQ Life Warm 2, FS- Secondary Contact Recreation

COARLA02a_4100 Arkansas River 1,290.30 MILES FS- Unknown Unknown 1 tributaries Agriculture, FS-Secondary Contact

Recreation, | FS-AQ Life Warm 2

COARLA02a_4200 Purgatoire River 1,728.30 MILES FS-AQ Life Unknown Unknown 1 tributaries Warm 2, FS- Secondary Contact Recreation, FS-Agriculture

COARLA02a_4300 Big Sandy Creek 1,324.70 MILES FS-Secondary Unknown Unknown 1 Contact Recreation, FS-AQ Life Warm 2, FS- Agriculture

COARLA02a_4400 Rush Creek 468.5 MILES FS-Secondary Unknown Unknown 1 Contact Recreation, FS-AQ Life Warm 2, FS- Agriculture

COARLA02a_4500 Butte Creek 493.7 MILES FS-Secondary Unknown Unknown 2 Contact Recreation, NA-AQ Life Warm 2, NA-

Agriculture Integrated QualityWater Monitoring and Assessment Report, Appendix A

4 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COARLA02a_4700 White Woman Creek 101.6 MILES FS-Secondary Unknown Unknown 1 Contact Recreation, FS-AQ Life Warm 2, FS- Agriculture

COARLA02a_5100 Unnamed tributary to 323.8 MILES FS- Unknown Unknown 1 Arkansas River Agriculture, FS-Secondary Contact Recreation, FS-AQ Life Warm 2

COARLA02a_5200 Little Bear Creek 586.1 MILES FS-AQ Life Unknown Unknown 1 Warm 2, FS- Secondary Contact Recreation, FS-Agriculture

COARLA02b_3700 King Arroyo 11.48 MILES NA-Primary Unknown Unknown 3 Contact Recreation, NA-AQ Life Warm 2, NA-

Agriculture

|

COARLA03a_3900 Apishapa River - 89.4 MILES FS- Unknown Unknown 1 Source to Interstate Agriculture, 25 FS-AQ Life Cold 1, FS- Water Supply, FS-Primary Contact Recreation

COARLA03b_3900 Apishipa tribs 66 MILES FS-Water Unknown Unknown 1 Supply, FS-AQ Life Warm 2, FS- Agriculture, FS-Secondary Contact Recreation

COARLA03c_3900 Unnamed tributary of 8.40 MILES NA- Unknown Unknown 3 Jarosa Canyon Creek Agriculture, NA-AQ Life Cold 2, NA- Water Supply, NA-Primary Contact

Recreation Integrated QualityWater Monitoring and Assessment Report, Appendix A

5 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COARLA04_3700 Timpas Creek 67.1 MILES FS- Selenium, Iron Unknown 5 Agriculture, NS-AQ Life Warm 2, FS- Primary Contact Recreation

COARLA04_3900 Apishapa River - 101 MILES FS- Selenium Unknown 5 mainstem Agriculture, NS-AQ Life Warm 2, FS- Primary Contact Recreation

COARLA04_4200 Unnamed tributary to 25.2 MILES FS- Unknown Unknown 1 the Apishapa River. Agriculture, FS-AQ Life Warm 2, FS- Primary Contact Recreation

COARLA05A_4200 Purgatoire River - 235.6 MILES FS- Unknown Unknown 1 North, South, Middle Agriculture, Forks of FS-Primary

Contact | Recreation, FS-Water Supply, FS-AQ Life Cold 1

COARLA06_4200 Purgatoire River 405.6 MILES NA- Unknown Unknown 3 tributaries above I-25 Agriculture, NA-AQ Life Cold 2, NA- Primary Contact Recreation

COARLA07_4200 Purgatoire River - I- 160.6 MILES FS- Selenium Unknown 5 25 to Arkansas River Agriculture, NS-AQ Life Warm 2, FS- Primary Contact Recreation

COARLA08_5300 Ricardo Creek 6.73 MILES NA-Primary Unknown Unknown 3 Contact Recreation, NA-Water Supply, NA- AQ Life Cold 1, NA-

Agriculture Integrated QualityWater Monitoring and Assessment Report, Appendix A

6 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COARLA08_5301 Vermejo Creek and 14.4 MILES NA-AQ Life Unknown Unknown 3 tributaries Cold 1, NA- Water Supply, NA- Agriculture, NA-Primary Contact Recreation

COARLA08_5302 Canadian River 3.14 MILES NA- Unknown Unknown 3 Agriculture, NA-Primary Contact Recreation, NA-Water Supply, NA- AQ Life Cold 1

COARLA08_5303 Chicorica Creek 9.11 MILES NA- Unknown Unknown 3 Agriculture, NA-AQ Life Cold 1, NA- Water Supply, NA-Primary Contact

Recreation

| COARLA08_5304 Schwachheim and 6.87 MILES NA-Primary Unknown Unknown 3 Segerstrom Creeks Contact Recreation, NA-Water Supply, NA- Agriculture, NA-AQ Life Cold 1

COARLA09A_4000 Horse Creek 126.8 MILES FS- Iron, Selenium Unknown 5 mainstem to Arkansas Agriculture, River NS-AQ Life Warm 1, FS- Primary Contact Recreation

COARLA09A_4100 Adobe & Gageby 54.4 MILES NS-AQ Life Selenium Unknown 5 Creeks, West May Warm 1, II- Valley drain, Willow Primary Creek Contact Recreation, FS-Agriculture

COARLA09A_4101 Adobe Creek 67.6 MILES NS-AQ Life Selenium, E.coli Unknown 5 Warm 1, NS- Primary Contact Recreation,

FS-Agriculture Integrated QualityWater Monitoring and Assessment Report, Appendix A

7 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COARLA09A_4300 Big Sandy Creek 61.1 MILES FS-Primary Selenium Unknown 5 headwaters Contact Recreation, FS- Agriculture, NS-AQ Life Warm 1

COARLA09A_4400 Rush Creek upper 180.5 MILES FS-Primary Selenium Unknown 5 tributaries Contact Recreation, FS- Agriculture, NS-AQ Life Warm 1

COARLA09B_3700 Bob Creek 19.6 MILES FS- Selenium Unknown 5 Agriculture, NS-AQ Life Warm 2, FS- Primary Contact Recreation

COARLA09B_4000 Breckenridge Creek 83.4 MILES FS- Selenium Unknown 5 & Little Horse Creek Agriculture, NS-AQ Life

Warm 2, FS- | Primary Contact Recreation

COARLA09B_4100 Wild Horse, Buffalo 66.3 MILES FS- Selenium Unknown 5 & Wolf Creeks Agriculture, NS-AQ Life Warm 2, FS- Primary Contact Recreation

COARLA09b_4300 Unnamed tributary to 13.5 MILES FS-Primary Selenium Unknown 5 the Lower Arkansas Contact River. Recreation, NS-AQ Life Warm 2, FS- Agriculture

COARLA09B_4400 Apache Creek 16.7 MILES NS-AQ Life Selenium Unknown 5 Warm 2, FS- Agriculture, FS-Primary Contact Recreation

COARLA09C_3700 Chicosa Creek 27.9 MILES NA-Primary Iron, Selenium Unknown 5 Contact Recreation, NS-AQ Life Warm 2, FS-

Agriculture Integrated QualityWater Monitoring and Assessment Report, Appendix A

8 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COARLA09C_3900 Mustang Creek & 38.4 MILES NA-Primary Unknown Unknown 3 Smith Canyon Contact Recreation, NA- Agriculture, NA-AQ Life Warm 2

COARLA09C_4100 Muddy, Caddoa, Clay 136.2 MILES NA- Unknown Unknown 3 & Cat Creeks Agriculture, NA-AQ Life Warm 2, NA- Primary Contact Recreation

COARLA09C_4101 Rule Creek 1 MILES NA- Unknown Unknown 3 Agriculture, II- AQ Life Warm 2, NA-Primary Contact Recreation

COARLA09C_4200 Trinchera Creek 33.5 MILES NA-AQ Life Unknown Unknown 3 Warm 2, NA- Primary Contact

Recreation, | NA- Agriculture

COARLA09C_4500 Two Butte Creek 141.1 MILES NA-AQ Life Unknown Unknown 3 Warm 2, NA- Primary Contact Recreation, NA- Agriculture

COARLA2b_3700 King Arroyo 11 MILES NA- Unknown Unknown 3 Agriculture, NA-AQ Life Warm 2, NA- Secondary Contact Recreation

COARMA02_3400 Arkansas River - 6.52 MILES FS-AQ Life Unknown Unknown 1 mainstem Cold 1, FS- Water Supply, FS-Primary Contact Recreation,

FS-Agriculture Integrated QualityWater Monitoring and Assessment Report, Appendix A

9 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COARMA03_3400 Arkansas River - 3.315 MILES FS- Unknown Unknown 1 mainstem Agriculture, FS-AQ Life Warm 1, FS- Water Supply, FS-Primary Contact Recreation

COARMA04a_3405 Wildhorse Creek 23.1 MILES FS-AQ Life Selenium, E.coli Unknown 5 Warm 2, NS- Primary Contact Recreation, II- Agriculture

COARMA04b_00 Rock Creek, Salt 57.3 MILES FS-AQ Life Unknown Unknown 1 Creek and Peck Warm 2, FS- Creek Primary Contact Recreation, FS-Agriculture

COARMA04c_00 Chico Creek 687.8 MILES NA- Unknown Unknown 3 Agriculture, NA-AQ Life Warm 1, NA-

Primary | Contact Recreation

COARMA04d_3400 Tribs to Arkansas 713.9 MILES FS- Unknown Unknown 1 River, Pueblo Rsvr to Agriculture, CO canal FS-AQ Life Warm 2, FS- Primary Contact Recreation

COARMA04e_3400 Golf Course Wash 2.23 MILES NA- Unknown Unknown 3 Agriculture, NA-AQ Life Cold 2, NA- Primary Contact Recreation

COARMA05_3400 St. Charles River 221.7 MILES FS- Unknown Unknown 1 Agriculture, FS-Primary Contact Recreation, FS-AQ Life Cold 1, FS-

Water Supply Integrated QualityWater Monitoring and Assessment Report, Appendix A

10 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COARMA06_3400 St. Charles River 35.6 MILES II-Agriculture, Selenium Unknown 5 NS-AQ Life Warm 2, FS- Water Supply, FS-Primary Contact Recreation

COARMA07_3400 Greenhorn Creek w/ 44.4 MILES FS- Unknown Unknown 2 tributaries Agriculture, II- AQ Life Cold 1, FS-Water Supply, FS- Primary Contact Recreation

COARMA09_3400 Greenhorn Creek to 30.4 MILES FS- Unknown Unknown 2 confluence with St. Agriculture, II- Charles River AQ Life Warm 2, FS-Water Supply, FS- Secondary Contact Recreation

COARMA10_3400 Sixmile Creek 38.4 MILES FS- Iron, Selenium Unknown 5

Agriculture, | NS-AQ Life Warm 2, FS- Primary Contact Recreation

COARMA11_3800 Huerfano River 154.2 MILES FS- Unknown Unknown 1 Agriculture, FS-Primary Contact Recreation, FS-Water Supply, FS-AQ Life Cold 1

COARMA12_3800 Huerfano River - 85.7 MILES FS- Selenium Unknown 5 Muddy Crk to Agriculture, confluence NS-AQ Life Warm 2, FS- Primary Contact Recreation

COARMA13_3800 Cucharas River -all 164.20 MILES FS- Unknown Unknown 1 tribs to WS diversion Agriculture, FS-Water Supply, FS- Primary Contact Recreation, FS-AQ Life

Cold 1 Integrated QualityWater Monitoring and Assessment Report, Appendix A

11 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COARMA13_3810 Wahatoya Creek 11.75 MILES FS-AQ Life Unknown Unknown 1 Cold 1, FS- Primary Contact Recreation, FS-Water Supply, FS- Agriculture

COARMA14_3800 Cucharas River -WS 32 MILES FS- Selenium Unknown 5 div past reservoir Agriculture, NS-AQ Life Warm 1, FS- Primary Contact Recreation

COARMA15_3800 Cucharas River - 17.8 MILES NA-Primary Unknown Unknown 3 reservior to Contact confluence Recreation, NA- Agriculture, NA-AQ Life Warm 2

COARMA17_3800 Apache Creek -South 8.97 MILES NA- Unknown Unknown 3 Agriculture,

NA-AQ Life | Cold 1, NA- Water Supply, NA-Primary Contact Recreation

COARMA18a_00 Boggs Creek 10.8 MILES NS-Water Selenium, Zinc, Unknown 5 Supply, FS- Uranium Primary Contact Recreation, NS- Agriculture, NS-AQ Life Warm 1

COARMA18b_3400 Turkey Creek & 19.9 MILES FS-AQ Life Unknown Unknown 1 others Warm 1, FS- Water Supply, FS-Primary Contact Recreation, FS-Agriculture

COARUA01A_3300 Mount Massive and 19 MILES FS-Primary Unknown Unknown 1 Collegiate Peaks Contact Wilderness areas Recreation, FS- Agriculture, FS-AQ Life Cold 1, FS-

Water Supply Integrated QualityWater Monitoring and Assessment Report, Appendix A

12 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COARUA01B_3300 East Fork of the 9.08 MILES FS-Primary Zinc, Lead Mining 4A Arkansas River source Contact to Birdseye Gulch. Recreation, NS-AQ Life Cold 1, FS- Water Supply

COARUA02A_3300 Arkansas River, Main 11.4 MILES FS- Zinc Unknown 4A & East Fork - Agriculture, Birdseye to California NS-AQ Life Cold 1, FS- Water Supply, NA-Primary Contact Recreation

COARUA02B_3300 Arkansas River - 1.53 MILES FS- Cadmium, Zinc Mining 4A California Gulch to Agriculture, Lake Fork NS-AQ Life Cold 1, FS- Primary Contact Recreation

COARUA02C_3300 Arkansas River -Lake 10.5 MILES FS- Cadmium, Zinc Mining 4A Fork to Lake Creek Agriculture, NS-AQ Life

Cold 1, FS- | Primary Contact Recreation

COARUA03_3300 Arkansas River -blw 104 MILES FS-Water Cadmium, Zinc Unknown 4A Lake Creek Supply, FS- Primary Contact Recreation, FS- Agriculture, NS-AQ Life Cold 1

COARUA03_3400 Grape Creek: source 33.9 MILES FS- Cadmium, Zinc Unknown 4A to Pueblo Reservoir Agriculture, NS-AQ Life Cold 1, FS- Water Supply, FS-Primary Contact Recreation

COARUA05_3300 Arkansas River upper 712.18 MILES FS-Water Unknown Unknown 1 tributaries Supply, FS-AQ Life Cold 1, FS- Agriculture, FS-Secondary Contact

Recreation Integrated QualityWater Monitoring and Assessment Report, Appendix A

13 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COARUA05_3301 Halfmoon Creek 11.4 MILES FS-Secondary Lead, Cadmium Unknown 4A Contact Recreation, FS-Water Supply, NS- AQ Life Cold 1, FS- Agriculture

COARUA05_3310 Lake Fork 4.79262 MILES FS-Secondary Unknown Unknown 2 Contact Recreation, FS- Agriculture, II- AQ Life Cold 1, FS-Water Supply

COARUA06_3300 Calififornia Gulch & 10.5 MILES NA- Unknown Unknown 2 St. Kevin's Gulch Agriculture, FS-Secondary Contact Recreation

COARUA07_3300 Evans Gulch 5.1 MILES FS- Zinc Mining 4A Agriculture, FS-Primary

Contact | Recreation, FS-Water Supply, NS- AQ Life Cold 1

COARUA08A_3300 Iowa Gulch abv 5.8 MILES FS- Unknown Unknown 1 Asarco WS Agriculture, FS-AQ Life Cold 2, FS- Water Supply, FS-Primary Contact Recreation

COARUA08B_3300 Iowa Gulch blw 2.80 MILES NS-AQ Life Cadmium, Unknown 5 Asarco WS Cold 2, FS- Lead, Zinc Primary Contact Recreation, FS-Agriculture

COARUA09_3300 Iowa Gulch -Paddock 3.74 MILES FS-Primary Unknown Unknown 1 Ditch1 to Arkansas Contact River Recreation, FS-AQ Life Cold 1, FS-

Agriculture Integrated QualityWater Monitoring and Assessment Report, Appendix A

14 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COARUA10_3300 Lake Creek mainstem 62.7 MILES FS- Copper, Unknown 5 & some tributaries Agriculture, Selenium, pH FS-Water Supply, FS- Primary Contact Recreation, NS-AQ Life Cold 1

COARUA11_3300 South Fork of Lake 17 MILES FS-Secondary Copper, pH, Mining 4A Creek & tribs Contact Cadmium, Recreation, Zinc, NS-AQ Life Aluminum Cold 1, FS- Agriculture

COARUA12A_3300 Chalk Creek 20.1 MILES FS- Zinc, Lead Mining 4A Agriculture, NS-AQ Life Cold 1, FS- Water Supply, FS-Primary Contact Recreation

COARUA12A_3301 Chaulk Creek 5.01 MILES NA- Unknown Unknown 3

Agriculture, | NA-AQ Life Cold 1, NA- Water Supply, NA-Primary Contact Recreation

COARUA12B_3300 Cottonwood Creek & 241.3 MILES FS-Primary Unknown Unknown 1 S. Fork Arkansas Contact tributaries Recreation, FS-Water Supply, FS-AQ Life Cold 1, FS-Agriculture

COARUA13_3300 Arkansas River -NF 265.8 MILES FS- Unknown Unknown 1 tribs btw Browns Crk Agriculture, to Grape Crk FS-Primary Contact Recreation, FS-Water Supply, FS-AQ Life Cold 1

COARUA13_3400 Arkansas River NF 100.8 MILES FS-AQ Life Unknown Unknown 1 tribs Grape Crk to Cold 1, FS- Pueblo Res. Water Supply, FS-Primary Contact Recreation,

FS-Agriculture Integrated QualityWater Monitoring and Assessment Report, Appendix A

15 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COARUA14a_3400 Big Red, Little Red, 42.1 MILES FS- Unknown Unknown 1 Rush and Agriculture, Hardscrabble Crks FS-AQ Life Warm 2, FS- Primary Contact Recreation

COARUA14b_3300 Arkansas River -Non 1,170 MILES FS- Unknown Unknown 1 NF tribs btw Browns Agriculture, Crk & Grape Crk FS-Secondary Contact Recreation, FS-AQ Life Cold 2

COARUA14b_3400 Arkansas River Non 756.7 MILES FS- Unknown Unknown 1 NF tribs Grape Crk to Agriculture, Pueblo Res. FS-AQ Life Cold 2, FS- Secondary Contact Recreation

COARUA15_3300 Grape, Texas, 501.7 MILES FS- Unknown Unknown 1 Badger, Hayden, Agriculture, Hamilton,Stout, & FS-Primary

Big Cottonwo Contact | Recreation, FS-Water Supply, FS-AQ Life Cold 1

COARUA15_3400 Newlin Creek 3.64 MILES FS-Water Unknown Unknown 1 Supply, FS- Primary Contact Recreation, FS-AQ Life Cold 1, FS- Agriculture

COARUA16A_3300 Middle Tallahassee 2.69 MILES NA-Water Unknown Unknown 2 Creek Supply, NA- Primary Contact Recreation, FS-AQ Life Cold 1, NA- Agriculture

COARUA16B_3300 Tallahassee Crk -N, S 42.9 MILES FS-AQ Life Unknown Unknown 1 & Middle Cold 2, FS- Water Supply, FS-Primary Contact Recreation,

FS-Agriculture Integrated QualityWater Monitoring and Assessment Report, Appendix A

16 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COARUA16C_3300 Tallahasse Creek to 8.79 MILES FS- Unknown Unknown 1 confluence Agriculture, FS-AQ Life Cold 1, FS- Water Supply, FS-Primary Contact Recreation

COARUA17A_3300 Cottonwood Creek 44.1 MILES NA-AQ Life Unknown Unknown 3 abv N. Waugh Creek Cold 1, NA- Water Supply, NA- Agriculture, NA-Primary Contact Recreation

COARUA17B_3300 Cottonwood Creek 60.1 MILES NA- Unknown Unknown 3 blw N. Waugh Creek Agriculture, NA-AQ Life Cold 2, NA- Primary Contact Recreation

COARUA17C_3300 Cottonwood Creek 9.74 MILES NA- Unknown Unknown 3

abv Currant Creek Agriculture, | NA-AQ Life Cold 1, NA- Water Supply, NA-Primary Contact Recreation

COARUA18_3300 Currant Creek 175.7 MILES NA-Primary Unknown Unknown 3 mainstem Contact Recreation, NA-Water Supply, NA- AQ Life Cold 1, NA- Agriculture

COARUA19_3400 Fourmile Creek abv 292 MILES FS- Unknown Unknown 1 Cripple Creek Agriculture, FS-Primary Contact Recreation, FS-Water Supply, FS-AQ Life Cold 1

COARUA20_3400 Fourmile Creek blw 167.6 MILES FS- Arsenic Unknown 5 Cripple Creek and Agriculture, tribs NS-AQ Life Cold 1, FS- Water Supply, FS-Primary Contact

Recreation Integrated QualityWater Monitoring and Assessment Report, Appendix A

17 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COARUA21_3400 Cripple Creek 8.79 MILES NS-AQ Life Bioassessments Unknown 5 Cold 2, FS- Primary Contact Recreation, FS-Agriculture

COARUA22A_3400 Arequa Gulch -source 1.91 MILES FS-AQ Life Unknown Unknown 2 to Cripple Creek Cold 2, NA- Secondary Contact Recreation, FS-Agriculture

COARUA22B_3400 Squaw Gulch 2.22 MILES NA- Unknown Unknown 3 Agriculture, NA-AQ Life Cold 2, NA- Secondary Contact Recreation

COARUA23_3400 Wilson Creek 9.3 MILES FS-Water Unknown Unknown 2 Supply, NA- Primary Contact Recreation,

FS-AQ Life | Cold 2, FS- Agriculture

COARUA24_3400 Beaver Creek, East, 118.9 MILES FS- Unknown Unknown 2 West & mainstem to Agriculture, diversion point FS-AQ Life Cold 1, NA- Water Supply, NA-Primary Contact Recreation

COARUA25_3400 Cottonwood Creek 4.27 MILES FS- Unknown Unknown 1 (Custer County) Agriculture, FS-Primary Contact Recreation, FS-AQ Life Cold 1, FS- Water Supply

COARUA26_3400 Beaver Creek blw 11.2 MILES FS- Unknown Unknown 2 diversion Agriculture, FS-AQ Life Warm 2, NA- Primary Contact

Recreation Integrated QualityWater Monitoring and Assessment Report, Appendix A

18 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COARUA27_3400 Eightmile Creek 41.9 MILES FS-AQ Life Unknown Unknown 2 Cold 1, NA- Agriculture, NA-Water Supply, NA- Primary Contact Recreation

COGULD01_7400 Dolores River 62.8 MILES FS-Primary Unknown Unknown 1 Contact Recreation, FS- Agriculture, FS-AQ Life Cold 1, FS- Water Supply

COGULD02_7400 Dolores River 47.4 MILES II-Primary Iron Unknown 5 Contact Recreation, FS- Agriculture, NS-AQ Life Warm 1

COGULD02_7600 Dolores River 43.3 MILES FS- Iron Unknown 5

Agriculture, | FS-Primary Contact Recreation, NS-AQ Life Warm 1

COGULD03a_7400 Unnnamed tributary 855.31 MILES NA-Primary Unknown Unknown 3 to Gunnison River Contact Recreation, NA-Water Supply, NA- AQ Life Cold 1, NA- Agriculture

COGULD03a_7420 Disappointment 57.32 MILES FS- Unknown Unknown 2 Creek Agriculture, II- AQ Life Cold 1, FS-Water Supply, II- Primary Contact Recreation

COGULD03a_7600 Unnamed tributary to 557.3 MILES NA- Unknown Unknown 3 the Gunnison River Agriculture, NA-Primary Contact Recreation, NA-AQ Life Cold 1, NA-

Water Supply Integrated QualityWater Monitoring and Assessment Report, Appendix A

19 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COGULD03b_7600 Unnamed tributary to 29.1 MILES FS- Unknown Unknown 1 the Gunnison River Agriculture, FS-AQ Life Cold 1, FS- Water Supply, FS-Primary Contact Recreation

COGULD04_7400 West Paradox Creek 14.3 MILES FS- Unknown Unknown 2 Agriculture, II- AQ Life Warm 2, II-Primary Contact Recreation

COGULD04_7600 Unnamed tributary to 116.5 MILES FS-Primary Unknown Unknown 1 the West Paradox Contact Creek Recreation, FS- Agriculture, FS-AQ Life Warm 2

COGULD05_7400 West Creek, La Sal 11.8 MILES FS-AQ Life Unknown Unknown 1 Creek and Mesa Cold 1, FS- Creek Agriculture,

FS-Water | Supply, FS- Primary Contact Recreation

COGULD05_7600 West Creek, La Sal 25.26 MILES FS-Primary Unknown Unknown 1 Creek and Mesa Contact Creek Recreation, FS- Agriculture, FS-AQ Life Cold 1, FS- Water Supply

COGULD05_7620 Roc Creek 15.78 MILES FS-Water Copper, Iron Unknown 5 Supply, NS- AQ Life Cold 1, FS- Agriculture, II- Primary Contact Recreation

COGULG01_6800 Gunnison River 29.7 MILES FS-Primary Unknown Unknown 1 Contact Recreation, FS-Water Supply, FS- Agriculture, FS-AQ Life

Cold 1 Integrated QualityWater Monitoring and Assessment Report, Appendix A

20 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COGULG01_7100 Gunnison River 20.1 MILES FS- Unknown Unknown 1 Agriculture, FS-AQ Life Cold 1, FS- Water Supply, FS-Primary Contact Recreation

COGULG02_7100 Gunnison River - 60 MILES NS-AQ Life Selenium, E.coli Agriculture 5 Uncompaghre to Cold 1, FS- Colorado Agriculture, FS-Water Supply, NS- Primary Contact Recreation

COGULG03_7100 Gunnison River 586.3 MILES FS-Primary Unknown Unknown 1 tributaries Contact Recreation, FS- Agriculture, FS-AQ Life Cold 1, FS- Water Supply

COGULG04a_6800 Gunnison River 93.7 MILES FS-Secondary Selenium Agriculture 4A | Tributaries Contact Recreation, NS-Water Supply, NS- Agriculture, NS-AQ Life Warm 2

COGULG04a_7100 Gunnison River 1,116.72 MILES NS- Selenium Agriculture 4A Tributaries Agriculture, NS-AQ Life Warm 2, NS- Water Supply, FS-Secondary Contact Recreation

COGULG04a_7120 Peach Valley Creek 15.03 MILES FS-Secondary Selenium Unknown 4A Contact Recreation, II- Water Supply, NS-AQ Life Warm 2, FS- Agriculture

COGULG04a_7130 Wells Gulch 9.56 MILES FS-Secondary Selenium Unknown 4A Contact Recreation, FS-Water Supply, NS- AQ Life Warm 2, FS-

Agriculture Integrated QualityWater Monitoring and Assessment Report, Appendix A

21 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COGULG04a_7140 Whitewater Creek 5.33 MILES FS-Secondary Selenium, Unknown 5 Contact Manganese, Recreation, Sulfates NS-Water Supply, NS- AQ Life Warm 2, FS- Agriculture

COGULG04a_7150 Cummings Gulch 3.00 MILES FS-Secondary Selenium Unknown 4A Contact Recreation, II- Water Supply, NS-AQ Life Warm 2, FS- Agriculture

COGULG04a_7160 Callow Creek 2.33 MILES II-Secondary Selenium Agriculture 4A Contact Recreation, II- Water Supply, NS-AQ Life Warm 2, NS- Agriculture

COGULG04c_6800 Red Rock Creek 5.9 MILES NS- Selenium Agriculture 4A Agriculture,

NS-AQ Life | Warm 2, FS- Water Supply, NA-Primary Contact Recreation

COGULG05_7100 Roubideau, Monitor, 24.3 MILES FS-AQ Life Unknown Unknown 1 and North Fork Cold 1, FS- Escalante Creeks Primary Contact Recreation, FS- Agriculture, FS-Water Supply

COGULG06_7100 Roubideau, Escalante, 76.9 MILES FS-AQ Life Unknown Unknown 1 Little Dominguez, Big Cold 1, FS- Dominguez Primary Contact Recreation, FS-Agriculture

COGULG07_7001 Tongue Creek 13.9 MILES NA- Iron, Selenium Unknown 5 Agriculture, NS-AQ Life Cold 2, NA- Primary Contact

Recreation Integrated QualityWater Monitoring and Assessment Report, Appendix A

22 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COGULG07_7100 Surface, Youngs, 33.76 MILES II-AQ Life Unknown Unknown 2 Kiser creeks Cold 2, FS- Primary Contact Recreation, FS-Agriculture

COGULG07_7120 Ward Creek 8.57 MILES FS- Unknown Unknown 2 Agriculture, FS-Primary Contact Recreation, II- AQ Life Cold 2

COGULG08_7100 Surface Creek, Fruita 9.01 MILES FS- Unknown Unknown 1 Water Supply Agriculture, Reservoir FS-Water Supply, FS-AQ Life Cold 1, FS-Primary Contact Recreation

COGULG08_7101 Kannah Creek 13.1 MILES FS- Unknown Unknown 2 Agriculture, FS-Primary

Contact | Recreation, II- Water Supply, FS-AQ Life Warm 2

COGULG10_6800 Smith Fork 24 MILES FS-Primary Unknown Unknown 1 Contact Recreation, FS-AQ Life Cold 1, FS- Agriculture

COGULG11_1000 Lunch Creek 1.48 MILES NA- Unknown Unknown 3 Agriculture, II- AQ Life Cold 1, NA-Water Supply, NA- Primary Contact Recreation

COGULG11_6800 Smith Fork tributaries 36.2 MILES FS- Unknown Unknown 1 Agriculture, FS-AQ Life Cold 1, FS- Water Supply, FS-Primary Contact

Recreation Integrated QualityWater Monitoring and Assessment Report, Appendix A

23 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COGULG12_6800 Smith Fork tributaries 92.78 MILES FS- Unknown Unknown 1 Agriculture, FS-AQ Life Warm 2, FS- Primary Contact Recreation

COGULG12_6820 Muddy Creek 8.54 MILES II-Primary Unknown Unknown 2 Contact Recreation, FS-AQ Life Warm 2, FS- Agriculture

COGUNF01_7000 Gunnison River, 152.1 MILES FS-Primary Unknown Unknown 1 North Fork Contact tributaries Recreation, FS-Water Supply, FS-AQ Life Cold 1, FS-Agriculture

COGUNF02_7000 Gunnison River, 19.5 MILES FS-Water Unknown Unknown 1 North Fork Supply, FS- Agriculture, FS-Primary

Contact | Recreation, FS-AQ Life Cold 1

COGUNF03_7000 Gunnison River - 19.6 MILES FS- Selenium Unknown 4A North Fork, Black Agriculture, Bridge to confluence NS-AQ Life Cold 1, FS- Primary Contact Recreation

COGUNF04_7000 Gunnison River, 446.45819 MILES FS-AQ Life Unknown Unknown 1 North Fork Cold 1, FS- tributaries Water Supply, FS- Agriculture, FS-Primary Contact Recreation

COGUNF04_7020 Muddy Creek 12.97 MILES II-Primary Unknown Unknown 2 Contact Recreation, FS- Agriculture, FS-Water Supply, FS-AQ

Life Cold 1 Integrated QualityWater Monitoring and Assessment Report, Appendix A

24 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COGUNF04_7030 East Muddy Creek 13.38 MILES FS-Primary Iron Unknown 5 Contact Recreation, FS- Agriculture, FS-Water Supply, NS- AQ Life Cold 1

COGUNF05_7000 Leroux Creek 8.93 MILES FS- Selenium Unknown 4A Agriculture, FS-Primary Contact Recreation, FS-Water Supply, NS- AQ Life Cold 1

COGUNF05_7001 Hubbard, Terror, 10.8 MILES FS-AQ Life Unknown Unknown 1 Minnesota Creeks Cold 1, FS- Agriculture, FS-Primary Contact Recreation,

FS-Water

Supply

|

COGUNF05_703D Jay Creek 15.9 MILES FS-Water Selenium Unknown 4A Supply, NS- AQ Life Cold 1, FS- Agriculture, FS-Primary Contact Recreation

COGUNF05_703E Hubbard, Terror, 16.5 MILES FS-Water Unknown Unknown 1 Minnesota Creeks Supply, FS- Primary Contact Recreation, FS-AQ Life Cold 1, FS- Agriculture

COGUNF06a_7000 Short Draw Creek 7.4 MILES NS-AQ Life Selenium Unknown 4A Cold 1, FS- Primary Contact Recreation, FS-Agriculture

COGUNF06a_7001 Tributaries to N. 78.13 MILES FS- Unknown Unknown 1 Fork of Gunnison Agriculture, River not on USFS FS-AQ Life property Cold 1, FS- Primary Contact

Recreation Integrated QualityWater Monitoring and Assessment Report, Appendix A

25 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COGUNF06a_7002 Unnamed Trib to N 2.72 MILES II-AQ Life Unknown Unknown 2 Fork Gunnison River Cold 1, FS- near Hotchkiss Agriculture, FS-Primary Contact Recreation

COGUNF06a_7101 Unnamed tributary to 7.8 MILES FS-Primary Unknown Unknown 2 North Fork Gunnsion Contact River near Hotchkiss Recreation, II- AQ Life Cold 1, FS- Agriculture

COGUNF06a_7201 Coal Gulch, 7.67 MILES FS-Primary Unknown Unknown 2 Hawksnest Creek, Contact Gribble Gulch Recreation, II- AQ Life Cold 1, FS- Agriculture

COGUNF06b_7000 Dever Creek, 17.60 MILES FS- Unknown Unknown 1 Reynolds Creek, Agriculture, McDonald Creek FS-Primary Contact Recreation, FS-AQ Life

Cold 1

|

COGUNF06b_7001 Cottonwood Creek 12.1 MILES FS- Selenium Unknown 4A Agriculture, NS-AQ Life Warm 2, II- Water Supply, FS-Primary Contact Recreation

COGUNF06b_7002 Gunnison River, 5.5 MILES FS-AQ Life Unknown Unknown 1 North Fork Tribs Cold 1, FS- Primary Contact Recreation, FS-Agriculture

COGUNF06b_7020 Alum Gulch 7.68 MILES II-AQ Life Sulfates Unknown 5 Cold 1, FS- Primary Contact Recreation, FS- Agriculture, NS-Water

Supply Integrated QualityWater Monitoring and Assessment Report, Appendix A

26 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COGUSM01_7500 Lizzard Head & Mt. 25.8 MILES FS- Unknown Unknown 1 Sneffels Wilderness - Agriculture, streams, lakes & tri FS-Water Supply, FS- Primary Contact Recreation, FS-AQ Life Cold 1

COGUSM02_7500 San Miguel River 165.52 MILES FS-Water Unknown Unknown 1 tributaries Supply, FS- Primary Contact Recreation, FS-AQ Life Cold 1, FS- Agriculture

COGUSM02_7520 Howard Fork abv 0.99 MILES FS- D.O., pH Unknown 5 Swamp Canyon Agriculture, NS-AQ Life Cold 1, FS- Primary Contact Recreation,

FS-Water

Supply

|

COGUSM02_7530 Cornet Creek 3.36 MILES FS- Unknown Unknown 2 Agriculture, II- AQ Life Cold 1, FS-Primary Contact Recreation, FS-Water Supply

COGUSM02_7540 Bear Creek 4.17 MILES FS- Cadmium, Zinc Unknown 5 Agriculture, NS-AQ Life Cold 1, FS- Primary Contact Recreation, FS-Water Supply

COGUSM03A_7500 San Miguel River - 0.41 MILES FS-Primary Unknown Unknown 1 Bridal Vail/Ingram Contact Creeks to Marshall Recreation, Crk FS-AQ Life Cold 1

COGUSM03B_7500 San Miguel River - 7.54 MILES FS- Cadmium, Zinc Unknown, 4A Marshall Crk to S. Agriculture, Mining Fork San Miguel NS-AQ Life River Cold 1, FS- Primary Contact

Recreation Integrated QualityWater Monitoring and Assessment Report, Appendix A

27 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COGUSM04_7500 San Miguel River 39.42 MILES FS- Unknown Unknown 1 Agriculture, FS-Primary Contact Recreation, FS-AQ Life Cold 1, FS- Water Supply

COGUSM04_7520 South Fork San 11.46 MILES FS-Water Unknown Unknown 2 Miguel to confl w Supply, II-AQ Leopard Creek Life Cold 1, FS-Primary Contact Recreation, FS-Agriculture

COGUSM05_7500 San Miguel River 22.9 MILES FS- Unknown Unknown 1 Agriculture, FS-AQ Life Warm 1, FS- Primary Contact Recreation

COGUSM06A_7500 Ingram Creek 3.21 MILES FS- Cadmium, Zinc Mining 4A Agriculture,

NS-AQ Life | Cold 2, FS- Primary Contact Recreation

COGUSM06B_7500 Marshall Creek 1.51 MILES FS- Cadmium, Zinc Mining 4A Agriculture, NS-AQ Life Cold 2, FS- Primary Contact Recreation

COGUSM07A_7500 Howard Fork and 6.35 MILES FS-Primary Unknown Unknown 1 tribs Contact Recreation, FS- Agriculture, FS-AQ Life Cold 1

COGUSM07A_7501 Chapman Creek 1.8 MILES II-AQ Life Unknown Unknown 2 Cold 1, FS- Agriculture, FS-Primary Contact Recreation

COGUSM07A_7502 Iron Bog Creek 0.98 MILES II-AQ Life Unknown Unknown 2 Cold 1, FS- Agriculture, FS-Primary Contact

Recreation Integrated QualityWater Monitoring and Assessment Report, Appendix A

28 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COGUSM07B_7500 Waterfall Creek 2.75 MILES FS- Unknown Unknown 1 Agriculture, FS-Water Supply, FS- Primary Contact Recreation, FS-AQ Life Cold 1

COGUSM08_7500 South Fork 6.44 MILES FS- Unknown Unknown 2 Agriculture, FS-AQ Life Cold 1, II- Water Supply, FS-Primary Contact Recreation

COGUSM09_7500 San Miguel River 395.5 MILES FS-AQ Life Unknown Unknown 1 tributaries Cold 1, FS- Water Supply, FS- Agriculture, FS-Primary Contact

Recreation

| COGUSM10_7500 Tabeguache Creek 38.67 MILES FS- Unknown Unknown 1 Agriculture, FS-Primary Contact Recreation, FS-Water Supply, FS-AQ Life Cold 1

COGUSM10_7520 Naturita Creek 14.06 MILES II-AQ Life Unknown Unknown 2 Cold 1, FS- Water Supply, II-Primary Contact Recreation, FS-Agriculture

COGUSM11_7500 Naturita Creek, west 34.5 MILES FS- Unknown Unknown 1 fork and Beaver, Agriculture, Horsefly and Saltado FS-AQ Life Cold 1, FS- Primary Contact Recreation

COGUSM12_7500 San Miguel River 690.84 MILES FS- Unknown Unknown 1 tributaries Agriculture, FS-AQ Life Cold 2, FS- Water Supply, FS-Primary Contact

Recreation Integrated QualityWater Monitoring and Assessment Report, Appendix A

29 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COGUSM12_7520 Mesa Creek 20.87 MILES FS-Primary Unknown Unknown 2 Contact Recreation, FS-Water Supply, II-AQ Life Cold 2, FS-Agriculture

COGUSM12_7530 Calamity Draw, 11.77 MILES FS-Primary Unknown Unknown 2 Specie Creek Contact Recreation, FS-Water Supply, II-AQ Life Cold 2, FS-Agriculture

COGUSM12_7540 Maverick Draw 23.9 MILES FS-Primary Bioassessments Unknown 5 Contact Recreation, FS-Water Supply, NS- AQ Life Cold 2, FS- Agriculture

COGUUG01_6800 Tributaries in 59.2 MILES FS-Primary Unknown Unknown 1 LaGarita Wilderness Contact

Area Recreation, | FS- Agriculture, FS-Water Supply, FS-AQ Life Cold 1

COGUUG01_6900 Tributaries in 33.6 MILES FS- Unknown Unknown 1 LaGarita Wilderness Agriculture, Area FS-AQ Life Cold 1, FS- Water Supply, FS-Primary Contact Recreation

COGUUG02_6700 Gunnison River 128.6 MILES FS- Unknown Unknown 1 tributaries Agriculture, FS-AQ Life Cold 1, FS- Water Supply, FS-Primary Contact Recreation

COGUUG02_6800 Gunnison River 118.5 MILES FS-AQ Life Unknown Unknown 1 tributaries Cold 1, FS- Water Supply, FS-Primary Contact Recreation,

FS-Agriculture Integrated QualityWater Monitoring and Assessment Report, Appendix A

30 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COGUUG03_6800 Gunnison River 60.6 MILES FS-Primary Unknown Unknown 1 tributaries Contact Recreation, FS-Water Supply, FS-AQ Life Cold 1, FS-Agriculture

COGUUG04_6700 Taylor River 358.34 MILES FS-Primary Unknown Unknown 2 Contact Recreation, FS-Water Supply, II-AQ Life Cold 1, FS-Agriculture

COGUUG04_6720 Taylor River 37.69 MILES FS- Lead Unknown 2 Agriculture, II- AQ Life Cold 1, FS-Water Supply, FS- Primary Contact Recreation

COGUUG05_6700 East River 88.5 MILES FS- Unknown Unknown 1 Agriculture,

FS-Primary | Contact Recreation, FS-Water Supply, FS-AQ Life Cold 1

COGUUG06A_6700 East River trubutaries 37.4 MILES FS- Unknown Unknown 1 Agriculture, FS-AQ Life Cold 2, FS- Primary Contact Recreation

COGUUG06B_6700 Cement Creek 21.97 MILES FS-Primary Bioassessments Unknown 5 Contact Recreation, FS-Water Supply, FS- Agriculture, NS-AQ Life Cold 1

COGUUG06B_6720 Cement Creek 14.97 MILES FS-AQ Life Unknown Unknown 1 Cold 1, FS- Agriculture, FS-Water Supply, FS- Primary Contact

Recreation Integrated QualityWater Monitoring and Assessment Report, Appendix A

31 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COGUUG07_6700 Slate River blw Oh- 4.66 MILES FS- Zinc Unknown 5 be-joyful-creek Agriculture, NS-AQ Life Cold 1, FS- Water Supply, FS-Primary Contact Recreation

COGUUG07_6701 Slate River above Oh- 7.21 MILES FS-Water Unknown Unknown 1 Be-Joyful Creek Supply, FS- Primary Contact Recreation, FS-AQ Life Cold 1, FS- Agriculture

COGUUG08_6700 Slate River -u/s Coal 8.97 MILES NS-AQ Life Cadmium, Zinc Unknown, 5 Creek to confluence Cold 1, FS- Mining with East River Water Supply, FS-Primary Contact Recreation, FS-Agriculture

COGUUG09_6700 Slate River tributaries 33.26 MILES FS-Primary Unknown Unknown 1

Contact | Recreation, FS- Agriculture, FS-AQ Life Cold 1, FS- Water Supply

COGUUG09_6720 Coal Creek 3.03 MILES FS-Water Arsenic Unknown 5 Supply, NS- AQ Life Cold 1, FS- Agriculture, FS-Primary Contact Recreation

COGUUG10_6700 Oh-Be-Joyful Creek 2.17 MILES FS- Zinc, Lead, Mining, 5 Agriculture, Cadmium, Unknown NS-AQ Life Copper Cold 1, FS- Primary Contact Recreation

COGUUG10_6720 Redwell Creek 2.50 MILES FS-Primary Unknown Unknown 2 Contact Recreation, II- AQ Life Cold 1, FS-

Agriculture Integrated QualityWater Monitoring and Assessment Report, Appendix A

32 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COGUUG11_6700 Coal Creek 4.85 MILES NS-Water Arsenic, Mining 5 Supply, NS- Cadmium, AQ Life Cold Zinc, 1, FS-Primary Manganese Contact Recreation, FS-Agriculture

COGUUG11_6720 Coal Creek 2.42 MILES FS- Arsenic, Zinc, Mining 5 Agriculture, Cadmium, FS-Primary Manganese Contact Recreation, NS-AQ Life Cold 1, NS- Water Supply

COGUUG11_6730 Creek 2.42 MILES FS- Arsenic, Zinc, Mining 5 Agriculture, Cadmium, Lead FS-Primary Contact Recreation, NS-AQ Life Cold 1, FS- Water Supply

COGUUG12_6700 Coal Creek 2.74 MILES FS- Copper, Zinc, Mining, 5

Agriculture, Cadmium Unknown | NS-AQ Life Cold 1, FS- Primary Contact Recreation

COGUUG12_6701 Coal Crk and tribs, 2.16 MILES FS- Unknown Unknown 1 Water Agriculture, Supply to Slate Rvr FS-AQ Life Cold 1, FS- Primary Contact Recreation

COGUUG13a_6700 Woods Creek 0.4 MILES FS-Water Unknown Unknown 1 Supply, FS- Primary Contact Recreation, FS- Agriculture, FS-AQ Life Cold 2

COGUUG13b_6700 Woods Creek - lower 0.7 MILES FS-Water Unknown Unknown 1 portion Supply, FS- Primary Contact Recreation, FS- Agriculture, FS-AQ Life

Cold 2 Integrated QualityWater Monitoring and Assessment Report, Appendix A

33 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COGUUG14_6800 Gunnison River 18.9 MILES FS- Unknown Unknown 1 Agriculture, FS-AQ Life Cold 1, FS- Water Supply, FS-Primary Contact Recreation

COGUUG15_6800 Gunnison River 72.17 MILES FS- Unknown Unknown 1 Agriculture, FS-Secondary Contact Recreation, FS-Water Supply, FS-AQ Life Cold 2

COGUUG15_6820 South Beaver Creek 23.59 MILES NS-AQ Life Bioassessments Unknown 5 Cold 2, II- Water Supply, FS-Secondary Contact Recreation, FS-Agriculture

COGUUG15_6900 Gunnison River 202 MILES FS-Secondary Unknown Unknown 1

Contact | Recreation, FS- Agriculture, FS-AQ Life Cold 2, FS- Water Supply

COGUUG16_6800 Ohio Creek mainstem 114.53 MILES FS-Water Unknown Unknown 1 Supply, FS- Agriculture, FS-AQ Life Cold 1, FS- Primary Contact Recreation

COGUUG16_6820 Ohio Creek 23.95 MILES II-Primary Unknown Unknown 2 Contact Recreation, FS-AQ Life Cold 1, FS- Agriculture, FS-Water Supply

COGUUG17_6800 Antelope Creek 31.8 MILES II-Water Unknown Unknown 2 Supply, II- Primary Contact Recreation, FS- Agriculture, FS-AQ Life

Cold 2 Integrated QualityWater Monitoring and Assessment Report, Appendix A

34 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COGUUG18_6900 Tomichi Creek 68.6 MILES FS-Primary Unknown Unknown 1 Contact Recreation, FS-Water Supply, FS-AQ Life Cold 1, FS-Agriculture

COGUUG19_6900 Tomichi Creek 336.3 MILES FS-Primary Unknown Unknown 1 tributaries Contact Recreation, FS-Water Supply, FS-AQ Life Cold 1, FS-Agriculture

COGUUG20_6900 Indian Creek 4.86 MILES FS-Primary Unknown Unknown 1 Contact Recreation, FS-AQ Life Cold 1, FS- Agriculture

COGUUG21_6900 Marshall Creek 37.9 MILES FS-Water Unknown Unknown 1 Supply, FS-AQ Life Cold 1, FS-Primary

Contact | Recreation, FS-Agriculture

COGUUG22_6900 Gold Creek 5.98 MILES FS- Unknown Unknown 1 Agriculture, FS-AQ Life Cold 1, FS- Water Supply, FS-Primary Contact Recreation

COGUUG23_6900 Cochetopa Creek 211.37 MILES FS- Unknown Unknown 2 Agriculture, FS-Primary Contact Recreation, FS-Water Supply, II-AQ Life Cold 1

COGUUG23_6920 Cochetopa Creek 22.32 MILES NS-AQ Life Bioassessments Unknown 5 from Forest Rd to Cold 1, FS- confluence w Tomichi Water Supply, Ck FS-Primary Contact Recreation,

FS-Agriculture Integrated QualityWater Monitoring and Assessment Report, Appendix A

35 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COGUUG23_6930 Stewart Creek 0.54 MILES II-AQ Life Unknown Unknown 2 Cold 1, FS- Water Supply, FS-Primary Contact Recreation, FS-Agriculture

COGUUG24_6900 Cochetopa Creek 5.31 MILES FS- Unknown Unknown 1 Agriculture, FS-Primary Contact Recreation, FS-Water Supply, FS-AQ Life Cold 1

COGUUG24_6920 Cochetopa Creek 18.17 MILES FS-AQ Life Unknown Unknown 1 Cold 1, FS- Water Supply, FS-Primary Contact Recreation, FS-Agriculture

COGUUG25_6801 Gunnison River 3.5 MILES NA-Primary Unknown Unknown 3 Contact

Recreation, | NA- Agriculture, NA-AQ Life Cold 1, NA- Water Supply

COGUUG26_6800 Blue Mesa, Morrow 830.54 MILES FS-AQ Life Unknown Unknown 1 Point and Crystal Cold 1, FS- Reservoir tributaries Water Supply, FS-Primary Contact Recreation, FS-Agriculture

COGUUG26_6802 Camp Creek 6.9 MILES FS-Water Unknown Unknown 1 Supply, FS- Agriculture, FS-Primary Contact Recreation, FS-AQ Life Cold 1

COGUUG26_6820 Blue Creek 17.02 MILES FS- Unknown Unknown 2 Agriculture, FS-Primary Contact Recreation, FS-Water Supply, II-AQ

Life Cold 1 Integrated QualityWater Monitoring and Assessment Report, Appendix A

36 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COGUUG26_6840 Mesa Creek 9.88 MILES FS- Unknown Unknown 1 Agriculture, FS-Primary Contact Recreation, FS-Water Supply, FS-AQ Life Cold 1

COGUUG29a_6800 Lake Fork and Tribs 184.67 MILES FS-Water Unknown Unknown 1 Supply, FS-AQ Life Cold 1, FS- Agriculture, FS-Primary Contact Recreation

COGUUG29a_6801 DeadmanCreek 1 MILES FS- Iron, Selenium, Mining 5 Agriculture, pH, Zinc, NS-AQ Life Manganese, Cold 1, FS- Cadmium, Primary Copper Contact Recreation, FS-Water

Supply

| COGUUG29a_6820 Lake Fork of the 0.69 MILES FS-Primary Bioassessments, Unknown 5 Gunnison btwn Contact Manganese Cooper and Silver Recreation, Crks FS- Agriculture, NS-AQ Life Cold 1, NS- Water Supply

COGUUG30_6800 Henson Creek 40.6 MILES FS-Water Cadmium, Zinc Mining 4A Supply, FS- Primary Contact Recreation, NS-AQ Life Cold 1, FS- Agriculture

COGUUG31_6800 Palmetto Gulch 1.71 MILES FS-Primary Zinc, Cadmium Mining 4A Contact Recreation, NS-AQ Life Cold 2, FS- Agriculture

COGUUG32_6800 Henson Creek, North 6.61 MILES NS-Water Manganese Unknown 5 Fork Supply, FS-AQ Life Cold 1, FS-Primary Contact Recreation,

FS-Agriculture Integrated QualityWater Monitoring and Assessment Report, Appendix A

37 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COGUUN01_7200 Uncompahgre River 36.6 MILES NA-Primary Unknown Unknown 3 Tributaries Contact Recreation, NA-Water Supply, NA- Agriculture, NA-AQ Life Cold 1

COGUUN02_7200 Uncompahgre River 5.48 MILES FS-Secondary Cadmium, Mining 5 Contact Copper, Zinc Recreation, FS- Agriculture, NS-AQ Life Cold 1, NS- Water Supply

COGUUN03a_7200 Uncompahre River, 22.7 MILES NS-AQ Life Copper, Iron, Unknown 4A Ridgway Res. to Cold 1, FS- Cadmium Montrose Water Supply, FS-Primary Contact Recreation, FS-Agriculture

COGUUN03a_7201 Red mountain Creek 16.8 MILES FS- Iron, Copper, Unknown 4A

Uncompahre River, Agriculture, Cadmium | Red Mtn Ck to NS-AQ Life Ridgeway Res. Cold 1, FS- Water Supply, FS-Primary Contact Recreation

COGUUN04A_7200 Uncompahgre River - 3.1 MILES FS-Secondary Unknown Unknown 2 below Hwy 550 Contact Recreation, FS- Agriculture, II- AQ Life Warm 2

COGUUN04B_7200 Uncompahgre River - 25.3 MILES NS-AQ Life Selenium Agriculture 4A La Salle Road to Warm 2, FS- Confluence Park Agriculture, FS-Secondary Contact Recreation

COGUUN04C_7200 Uncompahgre River 0.48 MILES NS-AQ Life Selenium, Iron Agriculture 5 from Confluence Park Warm 2, FS- to Gunnison River Primary Contact Recreation,

FS-Agriculture Integrated QualityWater Monitoring and Assessment Report, Appendix A

38 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COGUUN05_7200 Uncompahgre River 40.8 MILES FS- Unknown Unknown 1 tributaries Agriculture, FS-Primary Contact Recreation, FS-Water Supply, FS-AQ Life Cold 2

COGUUN06A_7200 Red Mountain Creek 1.78 MILES FS-Secondary Zinc, Copper, Unknown 5 Contact Silver Recreation, NS-AQ Life Cold 2, FS- Agriculture

COGUUN06B_7200 Red Mountain Creek 5.72 MILES FS- Unknown Unknown 1 Agriculture, FS-Secondary Contact Recreation

COGUUN07_7200 Gray Copper Gulch 2.31 MILES FS- Copper Unknown 5 Agriculture, FS-Secondary Contact Recreation,

NS-AQ Life | Cold 2, FS- Water Supply

COGUUN08_7200 Mineral Creek 3.14 MILES II-AQ Life Unknown Unknown 2 Cold 2, FS- Water Supply, FS- Agriculture, NA-Secondary Contact Recreation

COGUUN09_7210 Canyon Creek 4.64 MILES FS- Unknown Unknown 2 Agriculture, II- AQ Life Cold 2, FS-Primary Contact Recreation

COGUUN09_7220 Imogene Creek 2.59 MILES FS- Unknown Unknown 1 Agriculture, FS-AQ Life Cold 2, FS- Primary Contact Recreation

COGUUN09_7230 Sneffels Creek 3.92 MILES FS- Cadmium, Zinc Unknown 5 Agriculture, NS-AQ Life Cold 2, FS- Primary Contact

Recreation Integrated QualityWater Monitoring and Assessment Report, Appendix A

39 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COGUUN10_7200 Uncompahgre River 98.4 MILES FS-Primary Unknown Unknown 1 tributaries Contact Recreation, FS-Water Supply, FS-AQ Life Cold 2, FS-Agriculture

COGUUN10_7210 Alkali Creek 7.8 MILES FS- Unknown Unknown 2 Agriculture, II- AQ Life Cold 2, FS-Water Supply, FS- Primary Contact Recreation

COGUUN11_7200 Coal Creek and 121.68 MILES FS-Primary Unknown Unknown 1 others Contact Recreation, FS-Water Supply, FS-AQ Life Cold 1, FS-Agriculture

COGUUN11_7205 Deer Creek 6.90 MILES FS- Bioassessments Unknown 5 Agriculture,

NS-AQ Life | Cold 1, FS- Water Supply, FS-Primary Contact Recreation

COGUUN11_7220 Cow Creek 15.69 MILES FS- Unknown Unknown 2 Agriculture, II- AQ Life Cold 1, FS-Water Supply, FS- Primary Contact Recreation

COGUUN11_7230 Billy Creek, Onion 19.27 MILES FS- Unknown Unknown 2 Creek Agriculture, II- AQ Life Cold 1, FS-Water Supply, FS- Primary Contact Recreation

COGUUN12_7200 Uncompahgre River 441.93 MILES NS-AQ Life Selenium Agriculture 4A tributaries Warm 2, FS- Secondary Contact Recreation,

NS-Agriculture Integrated QualityWater Monitoring and Assessment Report, Appendix A

40 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COGUUN12_7220 Dry Creek, 40.82573 MILES NS- Selenium, Iron Agriculture 5 Loutzenhizer Arroyo Agriculture, FS-Secondary Contact Recreation, NS-AQ Life Warm 2

COGUUN13_7200 Dry Creek, east and 50.4 MILES FS- Unknown Unknown 1 west forks Agriculture, FS-AQ Life Cold 2, FS- Secondary Contact Recreation

COGUUN15A_7200 Happy Canyon, 13 MILES FS- Unknown Unknown 1 Horsefly Creek, Dry Agriculture, Creek FS-AQ Life Warm 2, FS- Secondary Contact Recreation

COGUUN15B_7200 Dry Creek 9.93 MILES NA-Primary Unknown Unknown 3 Contact Recreation,

NA- | Agriculture, II- AQ Life Warm 2

COLCLC01_6500 Colorado River - 34.1 MILES FS-Water Unknown Unknown 2 Roaring Fork to Supply, FS- Parachute Creek Primary Contact Recreation, FS- Agriculture, II- AQ Life Cold 1

COLCLC02a_6500 Colorado River - 49.6 MILES FS-Primary Unknown Unknown 2 Rifle Creek to Rapid Contact Creek Recreation, FS- Agriculture, II- AQ Life Warm 1, FS-Water Supply

COLCLC02b_6500 Colorado River - 20.2 MILES II-AQ Life Unknown Unknown 2 Rapid Creek to Warm 1, FS- Gunnison River Water Supply, FS-Primary Contact Recreation,

FS-Agriculture Integrated QualityWater Monitoring and Assessment Report, Appendix A

41 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COLCLC02b_6501 Humphrey Backwater 0.9 MILES FS- Selenium Unknown 5 Area, Colorado River Agriculture, NS-AQ Life Warm 1, FS- Primary Contact Recreation, FS-Water Supply

COLCLC03_6500 Colorado River 43.9 MILES FS-Primary Unknown Unknown 1 Contact Recreation, FS- Agriculture, FS-AQ Life Warm 1

COLCLC04a_6500 Unnamed tributary to 151.6 MILES FS-Secondary Selenium Unknown 5 the Colorado River Contact Recreation, FS- Agriculture, NS-AQ Life Cold 2, FS- Water Supply

COLCLC04a_6501 Alkali Creek 8.7 MILES NS-AQ Life Selenium Unknown 5 | Cold 2, FS- Water Supply, II-Secondary Contact Recreation, FS-Agriculture

COLCLC04b_6500 Unnamed tributary to 3.6 MILES II-AQ Life Unknown Unknown 2 South Canyon Hot Warm 2, FS- Springs. Primary Contact Recreation

COLCLC04c_6500 South Canyon Creek 6.4 MILES II-Primary Unknown Unknown 2 Contact Recreation, II- AQ Life Warm 1, FS- Agriculture, FS-Water Supply

COLCLC04d_6500 Dry Hollow Creek 14.3 MILES NA-Water Unknown Unknown 3 Supply, NA- AQ Life Cold 2, NA- Agriculture, NA-Primary Contact

Recreation Integrated QualityWater Monitoring and Assessment Report, Appendix A

42 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COLCLC04e_6500 Dry Creek 10.3 MILES NA-Primary Unknown Unknown 3 Contact Recreation, NA- Agriculture, NA-AQ Life Cold 2

COLCLC05_6500 Colorado River 260.7 MILES FS- Unknown Unknown 1 tributaries Agriculture, FS-Primary Contact Recreation, FS-Water Supply, FS-AQ Life Cold 1

COLCLC06_6500 Oasis Creek 2.7 MILES NA-Secondary Unknown Unknown 3 Contact Recreation, NA-AQ Life Cold 2, NA- Agriculture, NA-Water Supply

COLCLC07a_6500 Mitchell, Canyon, 162 MILES FS-AQ Life Unknown Unknown 1

Elk, Garfield, Beaver, Cold 1, FS- | and Cache Creeks Water Supply, FS-Primary Contact Recreation, FS-Agriculture

COLCLC07b_6500 Divide Creek 91.9 MILES FS-Primary Unknown Unknown 1 Contact Recreation, FS- Agriculture, FS-AQ Life Cold 1, FS- Water Supply

COLCLC08_6600 Northwater and 41.4 MILES NA-Secondary Unknown Unknown 2 Trapper Creeks Contact Recreation, FS-Water Supply, FS-AQ Life Cold 1, FS-Agriculture

COLCLC09a_6500 Rifle Creek and 69.5 MILES FS-Secondary Unknown Unknown 2 tributaries Contact Recreation, II- AQ Life Cold 1, FS-

Agriculture Integrated QualityWater Monitoring and Assessment Report, Appendix A

43 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COLCLC09c_6500 Battlement Creek 10.8 MILES NA-Primary Unknown Unknown 3 Contact Recreation, NA-Water Supply, NA- AQ Life Cold 1, NA- Agriculture

COLCLC10_00 Government Creek 73.1 MILES II-Primary Selenium Unknown 5 and tribs, Rifle Creek Contact Recreation, FS-Water Supply, NS- AQ Life Cold 1, FS- Agriculture

COLCLC10_6500 West Rifle Creek 27.1 MILES II-Primary Selenium Unknown 5 Contact Recreation, FS-Water Supply, NS- AQ Life Cold 1, FS- Agriculture

COLCLC10_6501 East Rifle Creek 47.3 MILES NS-AQ Life Selenium Unknown 5 | Cold 1, FS- Water Supply, FS- Agriculture, II- Primary Contact Recreation

COLCLC11A_6600 Parachute Creek, 33 MILES FS- Unknown Unknown 2 West Fork Agriculture, FS-AQ Life Cold 1, FS- Water Supply, NA-Secondary Contact Recreation

COLCLC11B_6600 Parachute Creek, 4.9 MILES FS- Unknown Unknown 1 West Fork Agriculture, FS-AQ Life Cold 2, FS- Secondary Contact Recreation

COLCLC11C_6600 Parachute Creek, 18.5 MILES NA- Unknown Unknown 3 Middle Fork Agriculture, NA-AQ Life Cold 2, NA- Secondary Contact

Recreation Integrated QualityWater Monitoring and Assessment Report, Appendix A

44 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COLCLC11D_6600 Parachute Creek, East 1.7 MILES FS-Secondary Unknown Unknown 1 Middle Fork Contact Recreation, FS-AQ Life Cold 1, FS- Agriculture

COLCLC11E_6600 Parachute Creek, East 23.8 MILES NA- Unknown Unknown 3 Fork Agriculture, NA-AQ Life Cold 2, NA- Water Supply, NA-Secondary Contact Recreation

COLCLC11F_6600 Parachute Creek, East 1.4 MILES FS- Unknown Unknown 1 Fork Agriculture, FS-AQ Life Cold 1, FS- Water Supply, FS-Secondary Contact Recreation

COLCLC11g_6600 Parachute Creek 100.7 MILES NA- Unknown Unknown 3 tributaries Agriculture,

NA-AQ Life | Cold 2, NA- Secondary Contact Recreation

COLCLC11h_6600 Parachute Creek 13.7 MILES FS- Unknown Unknown 1 Agriculture, FS-AQ Life Cold 2, FS- Primary Contact Recreation

COLCLC12a_6600 Parachute Creek, East 12.9 MILES NA-AQ Life Unknown Unknown 3 Fork tributaries Cold 1, NA- Agriculture, NA-Secondary Contact Recreation

COLCLC12b_6500 Colorado River Tribs 119.2 MILES NA-Primary Unknown Unknown 3 Contact Recreation, NA- Agriculture, NA-Water Supply, NA- AQ Life Cold

2 Integrated QualityWater Monitoring and Assessment Report, Appendix A

45 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COLCLC13a_6500 Colorado River -all 283.3 MILES FS- Unknown Unknown 2 tribs blw Parachute Agriculture, Creek FS-AQ Life Warm 2, NA- Primary Contact Recreation

COLCLC13a_7300 Little Dolores and 413.4 MILES FS- Unknown Unknown 2 tributaries Agriculture, NA-Primary Contact Recreation, FS-AQ Life Warm 2

COLCLC13b_6500 Tributaries to 1,159.69 MILES NS-AQ Life Selenium Unknown 5 Colorado River Warm 2, FS- Agriculture, FS-Primary Contact Recreation

COLCLC13b_6501 Adobe Creek, Leach 45.09 MILES FS- Selenium, Iron, Unknown 5 Creek Agriculture, E.coli NS-AQ Life Warm 2, NS-

Primary | Contact Recreation

COLCLC13b_6502 Salt Creek 83 MILES FS- Selenium, Unknown 5 Agriculture, Sedimentation NS-AQ Life Warm 2, FS- Primary Contact Recreation

COLCLC13b_6510 Indian Wash 7.91 MILES FS-Primary Unknown Unknown 2 Contact Recreation, FS- Agriculture, II- AQ Life Warm 2

COLCLC13d_6501 Coal Canyon Creek 1 MILES NA-Primary Unknown Unknown 3 Contact Recreation, NA- Agriculture, NA-AQ Life

Warm 2 Integrated QualityWater Monitoring and Assessment Report, Appendix A

46 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COLCLC14a_6600 Roan Creek 160.8 MILES FS-Water Unknown Unknown 1 Supply, FS- Agriculture, FS-AQ Life Cold 1, FS- Primary Contact Recreation

COLCLC14B_00 Roan Creek mainstem 1.2 MILES FS- Unknown Unknown 2 Agriculture, II- AQ Life Warm 1, FS-Water Supply, II- Primary Contact Recreation

COLCLC14B_6500 Kimball Creek 42.4 MILES II-Primary Unknown Unknown 2 Contact Recreation, FS- Agriculture, FS-Water Supply, II-AQ Life Warm 1

COLCLC14B_6601 Clear Creek 130.3 MILES II-Primary Unknown Unknown 2 | Contact Recreation, FS-Water Supply, II-AQ Life Cold 1, FS-Agriculture

COLCLC14c_00 Roan Creek mainstem 14 MILES FS-Primary Unknown Unknown 1 Contact Recreation, FS-AQ Life Warm 1, FS- Water Supply, FS-Agriculture

COLCLC14c_01 Roan Creek 70.4 MILES FS-Primary Unknown Unknown 1 tributairies Contact Recreation, FS-AQ Life Warm 1, FS- Agriculture, FS-Water Supply

COLCLC14c_6501 Dry Fork 101 MILES FS- Selenium Unknown 5 Agriculture, NS-AQ Life Warm 1, FS- Water Supply, FS-Primary Contact

Recreation Integrated QualityWater Monitoring and Assessment Report, Appendix A

47 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COLCLC15_6500 Plateau & Buzzard 286 MILES FS-Water Unknown Unknown 2 Creeks with Supply, II-AQ tributaries Life Cold 1, FS-Primary Contact Recreation, FS-Agriculture

COLCLC15_6501 Plateau Creek 25.1 MILES FS- Unknown Unknown 2 Agriculture, II- AQ Life Cold 1, FS-Water Supply, FS- Primary Contact Recreation

COLCLC16_6500 Plateau Creek and 317.9 MILES FS- Unknown Unknown 1 tribs Agriculture, FS-AQ Life Cold 1, FS- Water Supply, FS-Primary Contact Recreation

COLCLC17a_6500 Rapid Creek 22.4 MILES FS- Unknown Unknown 1

Agriculture, | FS-Primary Contact Recreation, FS-Water Supply, FS-AQ Life Cold 1

COLCLC17b_6500 Rapid Creek 1.3 MILES FS- Unknown Unknown 1 Agriculture, FS-AQ Life Cold 1, FS- Water Supply, FS-Primary Contact Recreation

COLCLC18_7300 Little Dolores River 25.7 MILES FS-Water Unknown Unknown 2 Supply, FS- Agriculture, FS-AQ Life Cold 1, NA- Primary Contact Recreation

COLCLY02_7800 Yampa River 1.38 MILES FS-Primary Iron Unknown 5 Contact Recreation, FS-Water Supply, FS- Agriculture, NS-AQ Life

Warm 1 Integrated QualityWater Monitoring and Assessment Report, Appendix A

48 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COLCLY02_8100 Yampa River 167.6 MILES FS-Primary Iron Unknown 5 Contact Recreation, FS- Agriculture, NS-AQ Life Warm 1, FS- Water Supply

COLCLY03A_8000 Yampa River 142.9 MILES FS-AQ Life Unknown Unknown 1 Tributaries Warm 2, FS- Secondary Contact Recreation, FS-Agriculture

COLCLY03A_8100 Yampa River 950.2 MILES FS-AQ Life Unknown Unknown 1 Tributaries Warm 2, FS- Secondary Contact Recreation, FS-Agriculture

COLCLY03B_8000 Johnson Gultch, 50.6 MILES FS-Primary Unknown Unknown 1 Pyeatt Gulch, Ute Contact Gulch, Castor Gulch, Recreation, No Na FS-AQ Life

Warm 2, FS- | Agriculture

COLCLY03c_00 Milk Creek and all 68.61 MILES FS-Water Unknown Unknown 1 tributaries Supply, FS- Agriculture, FS-AQ Life Warm 1, FS- Primary Contact Recreation

COLCLY03c_1000 Stinking Gulch 33.59 MILES FS-Primary Unknown Unknown 2 Contact Recreation, II- AQ Life Warm 1, FS- Agriculture, FS-Water Supply

COLCLY03d_00 Temple and Morgan 66.9 MILES NA-Secondary Unknown Unknown 3 Gulches, Lay Creek Contact Recreation, NA-AQ Life Warm 2, NA- Agriculture

COLCLY03e_00 Good Spring Creek 79.8 MILES FS-Primary Unknown Unknown 1 Contact Recreation, FS-Water Supply, FS-AQ Life Warm 2,

FS-Agriculture Integrated QualityWater Monitoring and Assessment Report, Appendix A

49 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COLCLY03e_1000 Wilson Creek 12.6 MILES FS- Unknown Unknown 2 Agriculture, II- AQ Life Warm 2, FS-Water Supply, FS- Primary Contact Recreation

COLCLY03f_00 Big Gulch 28.2 MILES NA-AQ Life Unknown Unknown 3 Warm 2, NA- Agriculture, NA-Primary Contact Recreation

COLCLY03g_8100 Ben Morgan, 96.1 MILES NA-AQ Life Unknown Unknown 3 Boxelder Gulch, Warm 1, NA- Cotton Gulch, Hale Agriculture, Gulch, Jubb C NA-Primary Contact Recreation

COLCLY04_8000 Fortification Creek, 33.9 MILES NA-Primary Unknown Unknown 3 south fork Contact Recreation, NA-Water

Supply, NA- | Agriculture, NA-AQ Life Cold 1

COLCLY05_8000 Fortification Creek 36.9 MILES FS- Selenium Unknown 5 Agriculture, NS-AQ Life Warm 1, FS- Primary Contact Recreation

COLCLY06a_8000 Fortification Creek 249.3 MILES FS- Unknown Unknown 1 Tributaries Agriculture, FS-AQ Life Warm 2, FS- Primary Contact Recreation

COLCLY07_8000 Little Bear Creek 34.3 MILES FS- Unknown Unknown 2 Agriculture, II- AQ Life Cold 1, FS-Primary Contact

Recreation Integrated QualityWater Monitoring and Assessment Report, Appendix A

50 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COLCLY08_00 East Fork of the 30.9 MILES FS- Unknown Unknown 1 Williams Fork River Agriculture, in Flat Tops FS-Primary Wilderness Contact Recreation, FS-AQ Life Cold 1, FS- Water Supply

COLCLY09_8000 Williams Fork River, 153 MILES NA- Unknown Unknown 3 East Fork Agriculture, NA-AQ Life Cold 1, NA- Water Supply, NA-Primary Contact Recreation

COLCLY10_8000 Williams Fork River, 103.4 MILES FS- Unknown Unknown 1 East Fork Agriculture, FS-AQ Life Cold 1, FS- Water Supply, FS-Primary Contact Recreation

COLCLY12a_8000 Williams Fork 100.6 MILES FS-Primary Unknown Unknown 1 | River,South Fork Contact Recreation, FS- Agriculture, FS-AQ Life Cold 1

COLCLY12a_8100 Williams Fork River, 44.5 MILES FS- Unknown Unknown 1 South Fork Agriculture, FS-Primary Contact Recreation, FS-AQ Life Cold 1

COLCLY12b_8100 Milk Creek and tribs 13 MILES NA- Unknown Unknown 3 Agriculture, NA-AQ Life Cold 1, NA- Primary Contact Recreation

COLCLY13A_8000 Williams Fork River 17.4 MILES FS- Unknown Unknown 1 Agriculture, FS-AQ Life Cold 2, FS- Water Supply, FS-Primary Contact

Recreation Integrated QualityWater Monitoring and Assessment Report, Appendix A

51 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COLCLY13B_8000 Williams Fork River 7.3 MILES FS-Primary Unknown Unknown 1 mainstem Contact Recreation, FS- Agriculture, FS-Water Supply, FS-AQ Life Warm 2

COLCLY15_8200 Little Snake River 41.1 MILES FS- Unknown Unknown 1 Agriculture, FS-AQ Life Cold 1, FS- Water Supply, FS-Primary Contact Recreation

COLCLY16_8100 Little Snake River 2.33 MILES FS- Unknown Unknown 2 Agriculture, II- AQ Life Warm 2, FS-Primary Contact Recreation

COLCLY16_8200 Little Snake River 69.2 MILES FS- Unknown Unknown 2 Agriculture, II-

AQ Life Warm | 2, FS-Primary Contact Recreation

COLCLY17a_8200 Little Snake River 410.2 MILES II-AQ Life Iron, E.coli Unknown 2 tributaries Cold 1, FS- Agriculture, II- Primary Contact Recreation

COLCLY17b_8200 Little Snake 1,385.20 MILES NA- Unknown Unknown 3 Tributaries Agriculture, NA-Secondary Contact Recreation, NA-AQ Life Cold 2

COLCLY18_8200 Slater Creek 131.1 MILES FS- Unknown Unknown 2 Agriculture, II- AQ Life Cold 1, FS-Water Supply, II- Primary Contact

Recreation Integrated QualityWater Monitoring and Assessment Report, Appendix A

52 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COLCLY19a_8600 Green River 5.6 MILES FS- Unknown Unknown 1 mainstem Agriculture, FS-AQ Life Cold 1, FS- Water Supply, FS-Primary Contact Recreation

COLCLY19b_7800 Green River 38 MILES FS-AQ Life Unknown Unknown 1 mainstem Cold 1, FS- Water Supply, FS- Agriculture, FS-Primary Contact Recreation

COLCLY20_7800 Green River and 319.2 MILES NA- Unknown Unknown 3 Yampa River Agriculture, Tributaries NA-AQ Life Warm 2, NA- Primary Contact Recreation

COLCLY20_8100 Unnamed tributary to 527.8 MILES NA-Primary Unknown Unknown 3

the Green River. Contact | Recreation, NA- Agriculture, NA-AQ Life Warm 2

COLCLY20_8600 Green River and 124.3 MILES NA- Unknown Unknown 3 Yampa River Agriculture, Tributaries NA-AQ Life Warm 2, NA- Primary Contact Recreation

COLCLY21_7800 Beaver Creek 59.3 MILES NA-Water Unknown Unknown 3 Supply, NA- AQ Life Cold 1, NA-Primary Contact Recreation, NA- Agriculture

COLCLY22a_7900 Vermillion Creek 221.08 MILES FS- Unknown Unknown 2 Agriculture, FS-AQ Life Warm 2, NA- Secondary Contact

Recreation Integrated QualityWater Monitoring and Assessment Report, Appendix A

53 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COLCLY22a_7920 Talamantes Creek 15.63 MILES NA-Secondary Bioassessments Unknown 5 Contact Recreation, NS-AQ Life Warm 2, FS- Agriculture

COLCLY22b_7900 Vermillion Creek and 375.2 MILES FS- Unknown Unknown 1 tribs Agriculture, FS-AQ Life Warm 2, FS- Primary Contact Recreation

COLCLY22c_00 Lower Vermillion 12.4 MILES FS- Unknown Unknown 2 Creek Agriculture, II- AQ Life Warm 2, II-Primary Contact Recreation

COLCLY22c_7900 Vermillion Creek, 24.3 MILES II-AQ Life Unknown Unknown 2 HWY 318 to Green Warm 2, II- River Secondary Contact Recreation,

FS-Agriculture

|

COLCWH01_8300 White River 222.3 MILES FS-Water Unknown Unknown 1 tributaries Supply, FS- Primary Contact Recreation, FS- Agriculture, FS-AQ Life Cold 1

COLCWH03_8300 White River 38.48 MILES FS- Unknown Unknown 1 Agriculture, FS-AQ Life Cold 1, FS- Water Supply, FS-Primary Contact Recreation

COLCWH04_8300 White River 194.8 MILES FS- Unknown Unknown 1 tributaries Agriculture, FS-AQ Life Cold 1, FS- Water Supply, FS-Primary Contact

Recreation Integrated QualityWater Monitoring and Assessment Report, Appendix A

54 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COLCWH04_8301 White River 6.8 MILES FS-Water Unknown Unknown 1 tributaries - Lost Supply, FS- Creek Agriculture, FS-Primary Contact Recreation, FS-AQ Life Cold 1

COLCWH06_8300 White River, South 65.5 MILES FS- Unknown Unknown 1 Fork Agriculture, FS-AQ Life Cold 1, FS- Water Supply, FS-Primary Contact Recreation

COLCWH07_8300 White River -u/s 46.8 MILES FS- Unknown Unknown 2 Miller Creek to Agriculture, II- Piceance Creek AQ Life Cold 1, FS-Water Supply, FS- Primary Contact Recreation

COLCWH08_8300 White River 135.5 MILES NA-Water Unknown Unknown 3 | tributaries Supply, NA- Agriculture, NA-Primary Contact Recreation, NA-AQ Life Cold 1

COLCWH09a_8300 White River 117 MILES FS- Unknown Unknown 2 tributaries Agriculture, II- AQ Life Cold 2, FS-Water Supply, FS- Secondary Contact Recreation

COLCWH09b_8300 Whtie River 351.7 MILES NA-Secondary Unknown Unknown 3 Tributaries Contact Recreation, NA- Agriculture, NA-AQ Life Cold 2, NA-

Water Supply Integrated QualityWater Monitoring and Assessment Report, Appendix A

55 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COLCWH09c_8300 Upper Flag Creek 41.2 MILES FS-Water Unknown Unknown 1 Supply, FS- Primary Contact Recreation, FS- Agriculture, FS-AQ Life Cold 2

COLCWH09d_8300 Sulphur Creek 36.8 MILES FS- Selenium Unknown 5 Agriculture, NS-AQ Life Cold 2, FS- Water Supply, FS-Primary Contact Recreation

COLCWH09d_8301 Lower Flag Creek 21.8 MILES NS-AQ Life Selenium Unknown 5 Cold 2, FS- Agriculture, FS-Primary Contact Recreation, FS-Water

Supply

| COLCWH10b_8300 Big Beaver Creek, 129.8 MILES FS-Water Unknown Unknown 1 Miller Creek, North Supply, FS-AQ Elk Creek Life Cold 1, FS- Agriculture, FS-Primary Contact Recreation

COLCWH10b_8310 Coal Creek 12.6 MILES FS-Primary Unknown Unknown 2 Contact Recreation, FS- Agriculture, II- AQ Life Cold 1, FS-Water Supply

COLCWH12_8300 White River 16.4 MILES FS-Water Unknown Unknown 1 Supply, FS- Primary Contact Recreation, FS- Agriculture, FS-AQ Life

Warm 1 Integrated QualityWater Monitoring and Assessment Report, Appendix A

56 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COLCWH12_8500 White River 33.7 MILES FS- Unknown Unknown 1 Agriculture, FS-AQ Life Warm 1, FS- Water Supply, FS-Primary Contact Recreation

COLCWH13A_8300 White River 283.6 MILES NA-AQ Life Unknown Unknown 3 tributaries Warm 2, NA- Secondary Contact Recreation, NA- Agriculture

COLCWH13A_8500 White River 776.7 MILES NA-AQ Life Unknown Unknown 3 tributaries Warm 2, NA- Secondary Contact Recreation, NA- Agriculture

COLCWH13B_8400 Yellow Creek 220.3 MILES FS- Unknown Unknown 1 Agriculture,

FS-AQ Life | Warm 2, FS- Secondary Contact Recreation

COLCWH13B_8401 Corral Creek 133.89 MILES FS-AQ Life Unknown Unknown 1 Warm 2, FS- Agriculture, FS-Secondary Contact Recreation

COLCWH13B_8410 Duck Creek 4.33 MILES FS-Secondary Unknown Unknown 2 Contact Recreation, FS- Agriculture, II- AQ Life Warm 2

COLCWH13c_8400 Yellow Creek 5.9 MILES FS-Secondary Bioassessments, Unknown 5 Contact Iron Recreation, FS- Agriculture, NS-AQ Life Warm 2

COLCWH14_8400 Piceance Creek 31.41 MILES FS-AQ Life Unknown Unknown 2 Cold 1, NA- Primary Contact Recreation,

FS-Agriculture Integrated QualityWater Monitoring and Assessment Report, Appendix A

57 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COLCWH14a_8400 Piceance Creek, 29.7 MILES FS- Unknown Unknown 5 Willow Creek to Agriculture, Hunter Creek NS-AQ Life Cold 1, FS- Primary Contact Recreation

COLCWH14b_8400 Piceance Creek 6.6 MILES NA- Unknown Unknown 3 Agriculture, NA-AQ Life Cold 1, NA- Primary Contact Recreation

COLCWH15_8400 Piceance Creek 19.68 MILES FS-Secondary Bioassessments Unknown 5 Contact Recreation, FS- Agriculture, NS-AQ Life Warm 2

COLCWH15_8420 Piceance Creek 16.00 MILES NS-AQ Life Bioassessments Unknown 5 Warm 2, FS- Agriculture,

FS-Secondary | Contact Recreation

COLCWH16_8400 Piceance Creek 432.6 MILES NA-AQ Life Unknown Unknown 3 tributaries Warm 2, NA- Secondary Contact Recreation, NA- Agriculture

COLCWH16_8410 Ryan Gulch 16.2 MILES FS- Unknown Unknown 2 Agriculture, II- Secondary Contact Recreation, FS-AQ Life Warm 2

COLCWH17_8400 Stewart Gulch, 38.4 MILES FS-AQ Life Unknown Unknown 1 Willow, Fawn and Cold 2, FS- Dry Fork Creeks Agriculture, FS-Secondary Contact Recreation

COLCWH18_8400 Dry Fork of Piceance 150.6 MILES NA- Unknown Unknown 3 Creek Agriculture, NA-AQ Life Cold 2, NA- Secondary Contact

Recreation Integrated QualityWater Monitoring and Assessment Report, Appendix A

58 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COLCWH19_8400 Fawn Creek 24.7 MILES NA- Unknown Unknown 3 Agriculture, NA-AQ Life Cold 2, NA- Primary Contact Recreation

COLCWH20_8400 Hunter Creek 89.21 MILES FS- Unknown Unknown 2 Agriculture, FS-AQ Life Cold 1, NA- Secondary Contact Recreation

COLCWH20_8420 Black Sulphur Creek 20.39 MILES NA-Secondary Bioassessments Unknown 5 Contact Recreation, NS-AQ Life Cold 1, FS- Agriculture

COLCWH21_8500 White River -Douglas 28.7 MILES FS- Unknown Unknown 1 Creek to Colorado / Agriculture, Utah border FS-AQ Life Warm 1, FS-

Water Supply, | FS-Primary Contact Recreation

COLCWH22_8500 White River 940.2 MILES NA- Unknown Unknown 2 tributaries Agriculture, FS-AQ Life Warm 2, NA- Primary Contact Recreation

COLCWH22_8501 West Evacuation 33.6 MILES NA-Primary Sedimentation Unknown 5 Wash and Douglas Contact Creek Recreation, NA- Agriculture, NS-AQ Life Warm 2

COLCWH23_8500 East and West 284.49 MILES FS-Water Unknown Unknown 2 Douglas Creek tribs Supply, II-AQ Life Cold 1, FS- Agriculture, FS-Primary Contact

Recreation Integrated QualityWater Monitoring and Assessment Report, Appendix A

59 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COLCWH23_8510 East Douglas Creek 23.4 MILES FS-Primary Unknown Unknown 2 Contact Recreation, FS- Agriculture, II- AQ Life Cold 1, FS-Water Supply

COLCWH23_8520 West Douglas Creek 22.19 MILES FS-Primary Bioassessments Unknown 5 Contact Recreation, FS- Agriculture, NS-AQ Life Cold 1, FS- Water Supply

CORGAL01_5500 Alamosa River 4.6 MILES FS-Primary Unknown Unknown 1 tributaries in S. San Contact Juan Wilderness Recreation, FS-Water Supply, FS-AQ Life Cold 1, FS-Agriculture

CORGAL01_5800 Conejos River tribs in 126.9 MILES FS-Primary Unknown Unknown 1

S. San Juan Contact | Wilderness Recreation, FS-Water Supply, FS-AQ Life Cold 1, FS-Agriculture

CORGAL01_6000 Rio Chama & tribs in 3.72 MILES FS-AQ Life Unknown Unknown 1 S. San Juan Cold 1, FS- Wilderness Agriculture, FS-Primary Contact Recreation, FS-Water Supply

CORGAL02_5500 Alamosa River abv 2.09 MILES NS-AQ Life Copper, Iron, Unknown 5 Alum Creek Cold 1, FS- Zinc, pH Water Supply, NA-Primary Contact Recreation, FS-Agriculture

CORGAL02_5501 Alamosa River abv 24.56 MILES FS- Unknown Unknown 2 Alum Creek Agriculture, II- AQ Life Cold 1, FS-Water Supply, NA- Primary Contact

Recreation Integrated QualityWater Monitoring and Assessment Report, Appendix A

60 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

CORGAL03A_5500 Alamosa River -Alum 3.06 MILES NA-Primary Copper, Mining 4A Creek to Wightman Contact Aluminum, Fork Recreation, Lead, Zinc NS-AQ Life Cold 2, NA- Agriculture

CORGAL03B_5500 Alamosa River - 4.8 MILES NA- Copper, Zinc, Mining 4A Wightman Fork to Agriculture, pH, Aluminum Fern Creek NA-Primary Contact Recreation, NS-AQ Life Cold 2

CORGAL03B_5510 Alamosa River abv 1.67 MILES NS-AQ Life Cadmium Mining 5 Jasper Ck Cold 2, NA- Primary Contact Recreation, NA- Agriculture

CORGAL03C_5500 Alamosa River -Fern 5.48 MILES NS-AQ Life pH, Aluminum, Mining 4A Creek to Terrace Cold 1, NA- Copper, Zinc Reservoir Primary Contact

Recreation, | NA- Agriculture

CORGAL03d_5500 Mainstem to the 5.08 MILES NS-AQ Life Aluminum, Unknown 5 Alamosa River Cold 1, FS- Copper, Zinc, Primary pH Contact Recreation, FS-Agriculture

CORGAL04A_5500 Alum, Bitter, Burnt & 10.8 MILES FS- Unknown Unknown 2 Iron Creeks Agriculture, NA-Primary Contact Recreation

CORGAL04B_5500 Iron Creek above 2.92 MILES NA-Primary Unknown Unknown 2 South Mountain Contact Creek Recreation, FS-AQ Life Cold 1, FS- Agriculture

CORGAL05_5500 Wightman Fork - 2.8 MILES NS-AQ Life pH Mining 4A upper Cold 1, NA- Primary Contact Recreation,

FS-Agriculture Integrated QualityWater Monitoring and Assessment Report, Appendix A

61 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

CORGAL06_5500 Wrightman Fork - 5.76 MILES NA- Unknown Unknown 3 lower Agriculture, NA-Primary Contact Recreation

CORGAL07_5500 Jasper Creek 3.17 MILES FS- Unknown Unknown 1 Agriculture, FS-AQ Life Cold 2, FS- Primary Contact Recreation

CORGAL09_5500 Alamosa River - 10.8 MILES NS- Copper Mining 4A Terrace Res. To CO Agriculture, Hwy 15 NS-AQ Life Cold 1, FS- Primary Contact Recreation

CORGAL10_5500 Alamosa River -below 27.3 MILES NA-Primary Unknown Unknown 2 CO Hwy 15 Contact Recreation, FS- Agriculture,

FS-AQ Life | Cold 2

CORGAL11_5500 La Jara Creek -upper 158.3 MILES FS- Unknown Unknown 1 Agriculture, FS-AQ Life Cold 1, FS- Primary Contact Recreation

CORGAL12_5500 La Jara Creek -lower 36.8 MILES NA- Unknown Unknown 3 Agriculture, NA-AQ Life Warm 2, NA- Primary Contact Recreation

CORGAL13_5500 Hot Creek 14 MILES FS-Primary Iron Unknown 5 Contact Recreation, FS- Agriculture, NS-AQ Life Cold 1, FS-

Water Supply Integrated QualityWater Monitoring and Assessment Report, Appendix A

62 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

CORGAL14_5800 Conejos River -abv 139.5 MILES FS- Unknown Unknown 1 Fox Creek Agriculture, FS-AQ Life Cold 1, FS- Water Supply, FS-Primary Contact Recreation

CORGAL15_5800 Conejos River -Fox 35.7 MILES FS- Unknown Unknown 1 Crk to Rio San Agriculture, Antonio FS-AQ Life Cold 2, FS- Water Supply, FS-Primary Contact Recreation

CORGAL16_5800 Conejos River -blw 17.8 MILES NA- Unknown Unknown 3 Rio San Antonio Agriculture, NA-Primary Contact Recreation, NA-AQ Life Warm 2

CORGAL17_5800 Rio de Los Pinos 50.3 MILES NA-AQ Life Unknown Unknown 3

Cold 1, NA- | Water Supply, NA-Primary Contact Recreation, NA- Agriculture

CORGAL18_5800 Rio San Antonio -blw 17.4 MILES NA-Primary Unknown Unknown 3 Hwy 285 Contact Recreation, NA-AQ Life Warm 2, NA- Agriculture

CORGAL19_6000 Rio Chama 68.6 MILES FS- Unknown Unknown 1 Agriculture, FS-Primary Contact Recreation, FS-Water Supply, FS-AQ Life Cold 1

CORGAL20_5500 -NF 111.6 MILES FS- Unknown Unknown 2 tributaries Agriculture, II- Primary Contact Recreation, FS-Water Supply, II-AQ

Life Cold 1 Integrated QualityWater Monitoring and Assessment Report, Appendix A

63 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

CORGAL20_5800 Rio Grande -NF 32.3 MILES NA- Unknown Unknown 3 tributaries Agriculture, NA-Water Supply, II-AQ Life Cold 1, II- Primary Contact Recreation

CORGAL21_5500 Rio Grande -all tribs 240.2 MILES NA-Secondary Unknown Unknown 3 Contact Recreation, NA- Agriculture

CORGAL21_5800 Rio Grande -all 63.7 MILES NA- Unknown Unknown 3 tributaries Agriculture, NA-Secondary Contact Recreation

CORGCB01_5700 Closed Basin 28 MILES NA-Water Unknown Unknown 3 tributaries in the La Supply, NA- Garita Wilderness Agriculture, Area NA-Primary Contact Recreation,

NA-AQ Life | Cold 1

CORGCB02_5700 La Garita Ck tribs 149.7 MILES NA- Unknown Unknown 3 Agriculture, NA-Primary Contact Recreation, NA-Water Supply, NA- AQ Life Cold 1

CORGCB02_5710 La Garita Ck 16.5 MILES II-AQ Life Unknown Unknown 2 Cold 1, FS- Water Supply, FS-Primary Contact Recreation, FS-Agriculture

CORGCB03_5600 Closed Basin 409.8 MILES FS-Primary Unknown Unknown 1 tributaries Contact Recreation, FS-AQ Life Warm 2, FS- Agriculture

CORGCB03_5700 Closed Basin 292.6 MILES FS-AQ Life Unknown Unknown 1 tributaries Warm 2, FS- Primary Contact Recreation,

FS-Agriculture Integrated QualityWater Monitoring and Assessment Report, Appendix A

64 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

CORGCB04_5600 San Luis Creek to 168.3 MILES NA- Unknown Unknown 3 Piney Creek Agriculture, NA-Primary Contact Recreation, NA-AQ Life Cold 1, NA- Water Supply

CORGCB05_5600 San Luis Creek -Piney 45.1 MILES FS- Unknown Unknown 2 Creek to San Luis Agriculture, II- Lake AQ Life Cold 2, FS-Primary Contact Recreation

CORGCB08_5600 Kerber, Brewery 15.6 MILES NA-Primary Unknown Unknown 3 Creeks & Elkhorn Contact Gulch Recreation, NA-AQ Life Cold 1, NA- Agriculture

CORGCB08_5610 Squirrel Ck 2.8 MILES FS- Unknown Unknown 2 Agriculture, II- AQ Life Cold 1, NA-Primary

Contact | Recreation

CORGCB09A_5600 Kerber Creek -source 60.2 MILES NA-Primary Cadmium Mining 4A to above Brewery Contact Creek Recreation, NS-Water Supply, NA- Agriculture

CORGCB09B_5600 Kerber Creek - 16.1 MILES NA-Water Copper Mining 4A Brewery Creek to San Supply, NS- Luis Creek AQ Life Cold 1, FS- Agriculture, NA-Primary Contact Recreation

CORGCB10_5600 Sand & Medano 93.1 MILES NA-Water Unknown Unknown 3 Creeks Supply, NA- Primary Contact Recreation, NA-AQ Life Cold 1, NA-

Agriculture Integrated QualityWater Monitoring and Assessment Report, Appendix A

65 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

CORGCB11_5600 Closed Basin 145.8 MILES FS-AQ Life Unknown Unknown 1 tributaries on NF Cold 1, FS- lands Water Supply, FS- Agriculture, FS-Primary Contact Recreation

CORGCB11_5700 Closed Basin 41.7 MILES FS-AQ Life Unknown Unknown 1 tributaries on NF Cold 1, FS- lands Water Supply, FS- Agriculture, FS-Primary Contact Recreation

CORGCB12_5700 Saguache Creek & 429.6 MILES FS- Unknown Unknown 1 tribs to below Ford Agriculture, Creek FS-Primary Contact Recreation, FS-Water Supply, FS-AQ Life Cold 1

CORGCB12_573D Hot Springs Creek 0.59 MILES FS- Unknown Unknown 1 | Agriculture, FS-Primary Contact Recreation, FS-Water Supply, FS-AQ Life Cold 1

CORGCB13_5700 Saguache & Russel 12.1 MILES FS- Unknown Unknown 1 creeks Agriculture, FS-AQ Life Warm 2, FS- Water Supply, FS-Primary Contact Recreation

CORGCB13_5701 North Branch 47.2 MILES NA-Water Unknown Unknown 3 Saguache Creek Supply, NA- AQ Life Warm 2, NA-Primary Contact Recreation, NA- Agriculture

CORGCB14_5700 Closed Basin 5.73 MILES NA-Primary Unknown Unknown 3 tributaries Contact Recreation, NA-AQ Life Warm 2, NA-

Agriculture Integrated QualityWater Monitoring and Assessment Report, Appendix A

66 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

CORGRG01_5400 Rio Grande 165.8 MILES FS-Water Unknown Unknown 1 tributaries in the Supply, FS- Weminuche Primary Wilderness Area Contact Recreation, FS-AQ Life Cold 1, FS- Agriculture

CORGRG02_5400 Rio Grande above 372.8 MILES FS- Unknown Unknown 1 Willow Creek Agriculture, FS-Primary Contact Recreation, FS-AQ Life Cold 1, FS- Water Supply

CORGRG02_5410 South Clear Creek 7.9 MILES FS-Water Unknown Unknown 2 Supply, II-AQ Life Cold 1, FS-Primary Contact Recreation, FS-Agriculture

CORGRG04_5400 Rio Grande - Wagon 29.7 MILES NS-AQ Life Zinc Mining 4A

Wheel Gap to Old Cold 1, FS- | Woman Creek Primary Contact Recreation, FS- Agriculture, FS-Water Supply

CORGRG04_543D Rio Grande - Willow 8.5 MILES NS-AQ Life Zinc, Cadmium Mining 4A Creek to Wagon Cold 1, FS- Wheel Gap Agriculture, FS-Primary Contact Recreation, FS-Water Supply

CORGRG04_5500 Rio Grande - Old 5.32 MILES FS-Primary Zinc Mining 4A Woman Creek to Del Contact Norte Recreation, FS- Agriculture, NS-AQ Life Cold 1, FS- Water Supply

CORGRG04_5501 Rio Grande - Del 43.8 MILES FS-Primary Copper Mining 5 Norte to Alamosa Contact County Line Recreation, FS-Water Supply, FS- Agriculture, NS-AQ Life

Integrated QualityWater Monitoring and Assessment Report, Appendix A Cold 1

67 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

CORGRG05_5400 Rio Grande -all tribs 307.2 MILES FS-AQ Life Unknown Unknown 1 from Willow Creek Cold 1, FS- to Old Woman Creek Primary Contact Recreation, FS- Agriculture, FS-Water Supply

CORGRG05_5410 Nelson Creek 2.5 MILES FS-Water Unknown Unknown 2 Supply, FS- Agriculture, FS-Primary Contact Recreation, II- AQ Life Cold 1

CORGRG05_5500 Rio Grande -all tribs 17.1 MILES FS-Primary Unknown Unknown 1 from Old Woman Contact Creek to CO Hwy Recreation, 112 FS-Water Supply, FS-AQ Life Cold 1, FS-Agriculture

CORGRG06_5400 Willow Creek, West 1.55 MILES FS-AQ Life Unknown Unknown 2 | -Deerhorn Creek to Cold 1, NA- Park Regent Mine Primary Dump Contact Recreation

CORGRG07_5400 Willow Creek and 7.8 MILES FS- pH Mining 5 West Willow Creek Agriculture, below mine dump NS-Primary Contact Recreation

CORGRG07_5401 East Willow Creek 4 MILES FS-Primary Unknown Unknown 1 Contact Recreation, FS-Agriculture

CORGRG08_5400 Goose Creek 27.6 MILES FS- Unknown Unknown 1 Agriculture, FS-AQ Life Cold 1, FS- Water Supply, FS-Primary Contact Recreation

CORGRG09_5400 Rio Grande, South 162.8 MILES FS- Unknown Unknown 1 Fork Agriculture, FS-Primary Contact Recreation, FS-AQ Life Cold 1, FS-

Water Supply Integrated QualityWater Monitoring and Assessment Report, Appendix A

68 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

CORGRG10_5500 Pinos Creek 102.1 MILES FS- Unknown Unknown 1 Agriculture, FS-Primary Contact Recreation, FS-Water Supply, FS-AQ Life Cold 1

CORGRG11_5500 San Francisco Creek 32 MILES FS- Unknown Unknown 2 (Rio Grande County) Agriculture, FS-AQ Life Cold 1, FS- Water Supply, NA-Primary Contact Recreation

CORGRG12_5500 Rio Grande - 65.4 MILES FS-Primary Bioassessments Unknown 5 RG/Alamosa County Contact line to bridge east of Recreation, Lobatos NS-AQ Life Warm 1, FS- Agriculture

CORGRG13_5500 Rio Grande -from 8.44 MILES FS- Unknown Unknown 1 bridge east of Lobatos Agriculture,

to Colo/NM state lin FS-AQ Life | Cold 1, FS- Primary Contact Recreation

CORGRG14_5500 Rio Grande tribs on 35.6 MILES NA- Unknown Unknown 3 NF blw Del Norte to Agriculture, Rock Creek confl. NA-Water Supply, NA- AQ Life Cold 1, NA-Primary Contact Recreation

CORGRG15_5500 Rio Grande -all 435.2 MILES FS- Unknown Unknown 1 tributaries from Del Agriculture, Norte to NM state FS-Secondary line Contact Recreation

CORGRG15_5800 Rio Grande -all tribs 46.1 MILES FS- Unknown Unknown 1 from Del Norte to the Agriculture, NM state line FS-Secondary Contact Recreation

CORGRG15_5900 Rio Grande -all tribs 59.6 MILES FS- Unknown Unknown 1 from Del Norte to the Agriculture, NM state line FS-Secondary Contact

Recreation Integrated QualityWater Monitoring and Assessment Report, Appendix A

69 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

CORGRG16_5500 Alamosa National 9.84 MILES NA-AQ Life Unknown Unknown 3 Wildlife Refuge, Warm 2, NA- Waters with in the Agriculture, NA-Primary Contact Recreation

CORGRG17_5500 Monte Vista National 13.9 MILES NA-AQ Life Unknown Unknown 3 Wildlife Refuge, Warm 2, NA- Waters within the Agriculture, NA-Primary Contact Recreation

CORGRG18_5500 Rio Grande wetland 2.83 MILES NA- Unknown Unknown 3 tribs from Del Norte Agriculture, to NM state line NA-AQ Life Warm 2, NA- Primary Contact Recreation

CORGRG18_5900 Rio Grande wetland 1.13 MILES NA- Unknown Unknown 3 tribs from Del Norte Agriculture, to the NM state line NA-AQ Life Warm 2, NA- Primary

Contact | Recreation

CORGRG19_5500 Rock Creek from 49.8 MILES NA-AQ Life Unknown Unknown 3 source to Monte Vista Cold 1, NA- canal Water Supply, NA- Agriculture, NA-Primary Contact Recreation

CORGRG20_5500 Cat Creek -source to 10.5 MILES NA-AQ Life Unknown Unknown 3 Terrace Main canal Cold 2, NA- Primary Contact Recreation, NA- Agriculture

CORGRG21_5500 Ute Creek -source to 34.9 MILES NA- Unknown Unknown 3 Hwy 160 Agriculture, NA-Primary Contact Recreation, NA-Water Supply, NA- AQ Life Cold

1 Integrated QualityWater Monitoring and Assessment Report, Appendix A

70 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

CORGRG22_5500 Ute Creek -Hwy 160 3.77 MILES NA-Water Unknown Unknown 3 to Sange de Cristo Supply, NA- Creek Primary Contact Recreation, NA-AQ Life Cold 2, NA- Agriculture

CORGRG23_5500 Sangre de Cristo 133.7 MILES FS- Unknown Unknown 1 Creek -source to Hwy Agriculture, 159 FS-Primary Contact Recreation, FS-AQ Life Cold 1

CORGRG24_5500 Sangre de Cristo 5.52 MILES NA- Unknown Unknown 3 Creek -Hwy 159 to Agriculture, Smith Reservoir NA-AQ Life Cold 2, NA- Secondary Contact Recreation

CORGRG25_5500 Trinchera Creek - 33.8 MILES FS-Water Unknown Unknown 1 source to outlet of Supply, FS-

Mtn. Home Reservoir Agriculture, | FS-Primary Contact Recreation, FS-AQ Life Cold 1

CORGRG26_5500 Trinchera Creek - 21.5 MILES FS-Primary Unknown Unknown 1 from Mtn. Home Contact Reservoir to Rio Recreation, Grande FS- Agriculture, FS-AQ Life Cold 2

CORGRG28_5500 Rito Seco -source to 12.2 MILES FS- E.coli Unknown 5 Salzar Reservoir Agriculture, NS-Primary Contact Recreation, FS-Water Supply, FS-AQ Life Cold 1

CORGRG29_5500 Rito Seca -Salzar 1.86 MILES FS- Unknown Unknown 1 Reservoir to Culebra Agriculture, Creek FS-AQ Life Cold 2, FS- Water Supply, FS-Primary Contact

Recreation Integrated QualityWater Monitoring and Assessment Report, Appendix A

71 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

CORGRG30_5500 Culebra Creek 159.5 MILES FS-Water Unknown Unknown 1 Supply, FS-AQ Life Cold 1, FS-Primary Contact Recreation, FS-Agriculture

COSJAF01_8900 and 84.4 MILES FS- Unknown Unknown 1 Agriculture, tributaries FS-AQ Life Cold 1, FS- Water Supply, FS-Primary Contact Recreation

COSJAF02_8900 Animas River - 22.9 MILES NS- Aluminum, Mining 4A Lake to Agriculture, Cadmium, Maggie Gulch FS-Primary Copper, Iron, Contact Lead Recreation

COSJAF03A_8900 Animas River 11.9 MILES NA-Primary Unknown Unknown 3 Contact Recreation, NA-AQ Life

Cold 1, NA- | Agriculture

COSJAF03B_8900 Animas river 0.83 MILES NA-Primary Unknown Unknown 3 Contact Recreation

COSJAF03C_8900 Arrastra Gulch 2.81 MILES FS-Primary Cadmium, Zinc Unknown 5 Contact Recreation, NS-AQ Life Cold 2, FS- Agriculture

COSJAF04A_8900 Animas River - 7.25 MILES NS-AQ Life Aluminum, pH, Mining 5 Mineral Creek to Elk Cold 2, FS- Copper, Iron, Creek Primary Zinc Contact Recreation, FS-Agriculture

COSJAF04B_8900 Animas River -Elk 48.3 MILES FS- Zinc Mining 4A Creek to Junction Agriculture, Creek NS-AQ Life Cold 1, FS- Water Supply, FS-Primary Contact

Recreation Integrated QualityWater Monitoring and Assessment Report, Appendix A

72 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COSJAF05A_8900 Animas River - 6.18 MILES NS-Water Zinc, Unknown 5 Junction Creek to the Supply, II-AQ Manganese Southern Ute Indian Life Cold 1, Res. FS-Primary Contact Recreation, FS-Agriculture

COSJAF05B_8900 Animas River 20.2 MILES FS-Primary Unknown Unknown 1 Contact Recreation, FS- Agriculture, FS-AQ Life Cold 1, FS- Water Supply

COSJAF06_8900 Cinnamon Creek, 26.9 MILES FS- Unknown Unknown 1 Grouse Creek, Agriculture, Picayne Gultch, FS-Water Minnie Gultch, Supply, FS-AQ Life Cold 1, FS-Primary Contact Recreation

COSJAF07_8900 Cement Creek 12.3 MILES NS- Aluminum, Unknown 4A

Agriculture, Lead, Iron, | FS-Primary Copper, Contact Cadmium Recreation

COSJAF08_8900 Mineral Creek - 12.7 MILES NS- Aluminum, Unknown 4A source to S. Mineral Agriculture, Cadmium, Creek confluence FS-Primary Copper, Iron, Contact Lead Recreation

COSJAF09_8900 Mineral Creek 22.3 MILES FS-Primary Cadmium, Iron, Unknown 4A (Upper Animas Basin) Contact Zinc, pH Recreation, NA- Agriculture, NS-AQ Life Cold 2

COSJAF10_8900 Florida River 19 MILES FS-Water Unknown Unknown 1 Supply, FS-AQ Life Cold 1, FS-Primary Contact Recreation, FS-Agriculture

COSJAF11A_8900 Florida River 3.37 MILES NA- Unknown Unknown 3 Agriculture, NA-AQ Life Cold 1, NA- Water Supply, NA-Primary Contact

Recreation Integrated QualityWater Monitoring and Assessment Report, Appendix A

73 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COSJAF11B_8900 Florida River within 22.3 MILES NA-Primary Unknown Unknown 3 the SUIR Contact Recreation, NA- Agriculture, NA-AQ Life Cold 1, NA- Water Supply

COSJAF12A_8900 Animas River 299.6 MILES FS- Unknown Unknown 1 tributaries Agriculture, FS-Primary Contact Recreation, FS-Water Supply, FS-AQ Life Cold 1

COSJAF13A_8900 Junction Creek 6.66 MILES FS- Unknown Unknown 2 Agriculture, II- AQ Life Cold 2, II-Primary Contact Recreation

COSJAF13A_8920 Junction Creek 3.79 MILES II-Primary Silver, E.coli Unknown 2 Contact

Recreation, II- | AQ Life Cold 2, FS- Agriculture

COSJAF13B_8900 Animas River 146 MILES FS-Primary Unknown Unknown 2 Contact Recreation, FS- Agriculture, FS-AQ Life Cold 2, NA- Water Supply

COSJAF13C_8900 Animas River 166.7 MILES NA- Unknown Unknown 3 tributaries Agriculture, NA-Primary Contact Recreation, NA-Water Supply, NA- AQ Life Cold 2

COSJAF14_8900 Lightner Creek 15 MILES FS- Unknown Unknown 1 Agriculture, FS-Water Supply, FS- Primary Contact Recreation, FS-AQ Life

Cold 1 Integrated QualityWater Monitoring and Assessment Report, Appendix A

74 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COSJAF15_8900 Purgatory Creek 6.4 MILES NA-AQ Life Unknown Unknown 3 Cold 2, NA- Water Supply, NA-Primary Contact Recreation, NA- Agriculture

COSJDO01_7400 Dolores River 17 MILES FS-Primary Unknown Unknown 1 tributaries Contact Recreation, FS- Agriculture, FS-AQ Life Cold 1, FS- Water Supply

COSJDO02_7400 Dolores River 13.6 MILES FS-AQ Life Unknown Unknown 2 Cold 1, FS- Water Supply, NA-Primary Contact Recreation, FS-Agriculture

COSJDO03_7400 Dolores River - Horse 16 MILES FS- Unknown Unknown 2

Creek to Bear Creek Agriculture, | FS-AQ Life Cold 1, NA- Primary Contact Recreation

COSJDO04_7400 Dolores River 37.4 MILES NA-Primary Unknown Unknown 3 Contact Recreation, NA-Water Supply, NA- AQ Life Cold 1, NA- Agriculture

COSJDO05_7400 Dolores & West 329.3 MILES FS-Primary Unknown Unknown 1 Dolores River all tribs Contact Recreation, FS- Agriculture, FS-AQ Life Cold 1, FS- Water Supply

COSJDO05_743D Silver Creek above 1.99 MILES FS-AQ Life Unknown Unknown 2 Rico drinking water Cold 1, FS- supply Water Supply, NA-Primary Contact Recreation,

FS-Agriculture Integrated QualityWater Monitoring and Assessment Report, Appendix A

75 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COSJDO06_7400 Slate Creek and Coke 3.05 MILES FS- Unknown Unknown 1 Oven Creek Agriculture, FS-AQ Life Cold 1, FS- Water Supply, FS-Primary Contact Recreation

COSJDO07_7400 Coal Creek 2.48 MILES FS- Unknown Unknown 1 Agriculture, FS-Primary Contact Recreation, FS-AQ Life Cold 1, FS- Water Supply

COSJDO08_7400 Horse Creek 2.85 MILES FS- Unknown Unknown 1 Agriculture, FS-Water Supply, FS- Primary Contact Recreation, FS-AQ Life

Cold 1

| COSJDO09_743D Silver Creek below 1.34 MILES FS-Primary Cadmium, Zinc Mining 4A Rico's WS diversion Contact Recreation, NS-AQ Life Cold 2, FS- Agriculture

COSJDO10_7400 Dolores River, West 27.5 MILES FS-AQ Life Unknown Unknown 1 Cold 1, FS- Primary Contact Recreation, FS- Agriculture, FS-Water Supply

COSJDO11_7400 Dolores River 496.59 MILES FS- Unknown Unknown 1 tributaries Agriculture, FS-AQ Life Cold 2, FS- Water Supply, FS-Primary Contact Recreation

COSJDO11_7420 Lost Canyon Creek 27.04 MILES II-Primary Unknown Unknown 2 Contact Recreation, FS-Water Supply, FS-AQ Life Cold 2,

FS-Agriculture Integrated QualityWater Monitoring and Assessment Report, Appendix A

76 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COSJFA03b_8900 Animas River, 3.11 MILES FS-Primary Unknown Unknown 1 Cement Creek to Contact Mineral Creek Recreation

COSJLP01_9000 La Plata River -source 43 MILES FS-Primary Silver Unknown 5 to Hay Gulch Contact diversion Recreation, FS- Agriculture, NS-AQ Life Cold 1, FS- Water Supply

COSJLP02A_9000 La Plata River 6.32 MILES FS- Unknown Unknown 1 Agriculture, FS-AQ Life Cold 2, FS- Primary Contact Recreation

COSJLP02B_9000 La Plata River 21.4 MILES FS- Unknown Unknown 1 Agriculture, FS-AQ Life Warm 2, FS- Primary Contact

Recreation

|

COSJLP03A_9000 La Plata River 58.6 MILES FS- Unknown Unknown 1 tributaries Agriculture, FS-AQ Life Warm 2, FS- Secondary Contact Recreation

COSJLP03A_9001 Cherry Creek 6.8 MILES FS- Iron Unknown 5 Agriculture, NS-AQ Life Warm 2, FS- Secondary Contact Recreation

COSJLP03B_9000 La Plata River 281.3 MILES FS- Unknown Unknown 1 tributaries Agriculture, FS-Secondary Contact Recreation, FS-AQ Life Warm 2

COSJLP04a_4210 Mancos River 1.301 MILES FS-Primary D.O. Unknown 5 Contact Recreation, FS-Water Supply, NS- AQ Life Cold 1, FS-

Agriculture Integrated QualityWater Monitoring and Assessment Report, Appendix A

77 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COSJLP04a_9100 Mancos River -source 117.7 MILES FS- D.O. Unknown 5 to Hwy 160 Agriculture, NS-AQ Life Cold 1, FS- Water Supply, FS-Primary Contact Recreation

COSJLP04a_9101 East Fork Mancos 11.4 MILES FS-Primary D.O., Copper, Unknown 5 River Contact Manganese Recreation, NS-Water Supply, FS- Agriculture, NS-AQ Life Cold 1

COSJLP04a_913D Mancos River -Box 5.8 MILES FS- Unknown Unknown 1 Canyon Agriculture, FS-Primary Contact Recreation, FS-AQ Life Cold 1, FS- Water Supply

COSJLP05A_9100 Mancos River 21.3 MILES FS- Unknown Unknown 1 | Agriculture, FS-AQ Life Warm 2, FS- Primary Contact Recreation

COSJLP05B_9100 Mancos River 58.2 MILES FS- Unknown Unknown 2 Agriculture, FS-AQ Life Warm 2, NA- Primary Contact Recreation

COSJLP06A_9100 Mancos River 218.1 MILES FS- Unknown Unknown 1 Agriculture, FS-AQ Life Warm 2, FS- Primary Contact Recreation

COSJLP06B_9100 Mancos River 484.6 MILES NA-AQ Life Unknown Unknown 3 Warm 2, NA- Primary Contact Recreation, NA-

Agriculture Integrated QualityWater Monitoring and Assessment Report, Appendix A

78 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COSJLP07A_9300 McElmo Creek - 291.50 MILES FS- Iron, E.coli Unknown 5 source to Colo./Utah Agriculture, border NS-AQ Life Warm 1, NS- Primary Contact Recreation

COSJLP07A_9320 McElmo Creek 16.93 MILES NS-Primary Iron, E.coli Unknown 5 Contact Recreation, NS-AQ Life Warm 1, FS- Agriculture

COSJLP07B_9300 Mainstem of McElmo 7.55 MILES NA- Unknown Unknown 3 Creek within Ute Agriculture, Mountain Indian Rsvn NA-AQ Life Warm 1, NA- Primary Contact Recreation

COSJLP08A_9300 McElmo Creek 334.66 MILES II-Primary Unknown Unknown 2 tributaries Contact Recreation, FS-

Agriculture, | FS-AQ Life Warm 2

COSJLP08A_9310 Hartman Draw 10.25 MILES II-AQ Life Unknown Unknown 2 Warm 2, FS- Agriculture, II- Primary Contact Recreation

COSJLP08A_9320 Trail Canyon 3.7217 MILES NS-AQ Life Iron Unknown 5 Warm 2, FS- Agriculture, II- Primary Contact Recreation

COSJLP08A_9330 Mud Creek 8.02 MILES NS-AQ Life Selenium Unknown 5 Warm 2, FS- Agriculture, II- Primary Contact Recreation

COSJLP08B_9300 McElmo Creek within 61.4 MILES NA-Primary Unknown Unknown 3 UMIR Contact Recreation, NA-AQ Life Warm 2, NA-

Agriculture Integrated QualityWater Monitoring and Assessment Report, Appendix A

79 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COSJLP09_9200 San Juan River 3.47 MILES NA-Primary Unknown Unknown 3 Contact Recreation, NA-AQ Life Warm 1, NA- Agriculture

COSJLP10A_9300 McElmo Creek and 378.9 MILES NA- Unknown Unknown 3 San Juan River Agriculture, NA-Primary Contact Recreation, NA-AQ Life Warm 2

COSJLP10B_9300 San Juan River tribs 170 MILES NA- Unknown Unknown 3 within UMIR Agriculture, NA-AQ Life Warm 2, NA- Primary Contact Recreation

COSJPI01_8800 Piedra River -all tribs 68.1 MILES FS- Unknown Unknown 1 within the Agriculture, Weminuche FS-Primary Wilderness Area Contact

Recreation, | FS-Water Supply, FS-AQ Life Cold 1

COSJPI02_8800 Piedra River 26.1 MILES FS-Primary Unknown Unknown 1 Contact Recreation, FS- Agriculture, FS-AQ Life Cold 1, FS- Water Supply

COSJPI03_8800 Piedra River 3.72 MILES FS-Primary Unknown Unknown 1 Contact Recreation, FS-Water Supply, FS- Agriculture, FS-AQ Life Cold 1

COSJPI04A_8800 Piedra River -Indian 13.6 MILES FS- Unknown Unknown 1 Creek to Southern Agriculture, Ute Indian Res. FS-AQ Life Cold 1, FS- Water Supply, FS-Primary Contact

Recreation Integrated QualityWater Monitoring and Assessment Report, Appendix A

80 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COSJPI04B_8800 Piedra River 8.53 MILES NA-AQ Life Unknown Unknown 3 Cold 1, NA- Water Supply, NA-Primary Contact Recreation, NA- Agriculture

COSJPI05_8800 Piedra River 250.58 MILES FS-AQ Life Unknown Unknown 1 tributaries Cold 1, FS- Water Supply, FS- Agriculture, FS-Primary Contact Recreation

COSJPI05_8810 Williams Creek 8.12 MILES FS-Primary Unknown Unknown 2 Contact Recreation, FS- Agriculture, FS-Water Supply, II-AQ Life Cold 1

COSJPI06A_8800 Piedra River 85 MILES FS-Primary Unknown Unknown 1 | tributaries Contact Recreation, FS- Agriculture, FS-AQ Life Warm 2, FS- Water Supply

COSJPI06A_8810 Stollsteimer Creek 21.9 MILES FS-Water Unknown Unknown 2 Supply, II-AQ Life Warm 2, FS- Agriculture, II- Primary Contact Recreation

COSJPI06B_8800 Piedra River 39.7 MILES NA- Unknown Unknown 3 Agriculture, NA-Water Supply, NA- AQ Life Warm 2, NA-Primary Contact Recreation

COSJPN01_8700 169.3 MILES FS-AQ Life Unknown Unknown 1 tributaries Cold 1, FS- Agriculture, FS-Water Supply, FS- Primary Contact

Integrated QualityWater Monitoring and Assessment Report, Appendix A Recreation

81 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COSJPN02A_8700 Los Pinos River -from 25.7 MILES FS-Water Unknown Unknown 1 wilderness bdry to S. Supply, FS- Ute Indian Res. Primary Contact Recreation, FS-AQ Life Cold 1, FS- Agriculture

COSJPN02B_8700 Los Pinos River 17 MILES NA-AQ Life Unknown Unknown 3 Cold 1, NA- Water Supply, NA-Primary Contact Recreation, NA- Agriculture

COSJPN04A_8700 Los Pinos River 90.3 MILES NA-Primary Unknown Unknown 3 tributaries Contact Recreation, NA- Agriculture, NA-AQ Life Cold 1, NA- Water Supply

COSJPN04B_8700 Beaver Creek, Ute 30.1 MILES NA- Unknown Unknown 3 | Creek and Spring Agriculture, Creek NA-Water Supply, NA- AQ Life Cold 1, NA-Primary Contact Recreation

COSJPN05_8700 Vallecito Creek - 3.34 MILES FS-Water Unknown Unknown 1 wilderness boundary Supply, FS- to Vallecito Res. Primary Contact Recreation, FS- Agriculture, FS-AQ Life Cold 1

COSJPN06A_8700 Los Pinos River 62.2 MILES FS-AQ Life Unknown Unknown 1 tributaries Cold 2, FS- Agriculture, FS-Primary Contact Recreation

COSJPN06B_8700 Los Pinos River 78.6 MILES NA-Primary Unknown Unknown 3 tributaries Contact Recreation, NA-AQ Life Cold 2, NA-

Agriculture Integrated QualityWater Monitoring and Assessment Report, Appendix A

82 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COSJPN07B_8700 San Juan River tribs in 31.4 MILES NA-Primary Unknown Unknown 3 La Plata County and Contact SUIR Recreation, NA-AQ Life Cold 2, NA- Agriculture

COSJSJ01_8700 Navajo River and 149.7 MILES FS- Unknown Unknown 1 tribs Agriculture, FS-Primary Contact Recreation, FS-AQ Life Cold 1, FS- Water Supply

COSJSJ01_8710 Navajo River 2.8 MILES FS-Water Unknown Unknown 2 Supply, FS-AQ Life Cold 1, II- Primary Contact Recreation, FS-Agriculture

COSJSJ02_8700 Navajo River 4.66 MILES NA-Water Unknown Unknown 3 Supply, NA- Primary

Contact | Recreation, NA-AQ Life Cold 1, NA- Agriculture

COSJSJ03_8700 Ltl Navajo River blw 38.3 MILES II-Primary Unknown Unknown 2 diversion & Tribs Contact Recreation, FS-AQ Life Warm 2, FS- Agriculture

COSJSJ04_8700 San Juan River 96.9 MILES FS-Primary Unknown Unknown 2 tributaries Contact Recreation, FS-Water Supply, FS-AQ Life Cold 1, NA- Agriculture

COSJSJ05_8700 San Juan River 174.2 MILES FS-Primary Unknown Unknown 2 Contact Recreation, FS- Agriculture, II- AQ Life Cold 1, FS-Water

Supply Integrated QualityWater Monitoring and Assessment Report, Appendix A

83 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COSJSJ06A_8700 San Juan River and 12.9 MILES FS-Primary Unknown Unknown 1 tribs Contact Recreation, FS-Water Supply, FS- Agriculture, FS-AQ Life Cold 1

COSJSJ06A_8710 San Juan River 13.4 MILES II-AQ Life Unknown Unknown 2 Cold 1, FS- Agriculture, FS-Water Supply, FS- Primary Contact Recreation

COSJSJ06B_8700 San Juan River 28.5 MILES NA- Unknown Unknown 3 Agriculture, NA-AQ Life Cold 1, NA- Primary Contact Recreation, NA-Water

Supply

| COSJSJ09A_8700 Rio Blanco River - 147.5 MILES NA- Unknown Unknown 3 mainstem Agriculture, NA-AQ Life Cold 1, NA- Water Supply, NA-Primary Contact Recreation

COSJSJ09A_8710 Rio Blanco River 17 MILES FS-Primary Unknown Unknown 2 Contact Recreation, FS-Water Supply, FS-AQ Life Cold 1, II- Agriculture

COSJSJ09B_8700 Rio Blanco River 2.5 MILES NA-AQ Life Unknown Unknown 3 Cold 1, NA- Water Supply, NA-Primary Contact Recreation, NA- Agriculture

COSJSJ10_8700 Rio Blanco River 9.74 MILES FS- Unknown Unknown 2 Agriculture, FS-AQ Life Cold 2, II- Primary Contact

Recreation Integrated QualityWater Monitoring and Assessment Report, Appendix A

84 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COSJSJ11a_8700 Rio Blanco River 106.1 MILES FS-Primary Unknown Unknown 1 Contact Recreation, FS-AQ Life Warm 1, FS- Agriculture

COSJSJ11b_8700 Tributaries to the San 21.6 MILES NA-Primary Unknown Unknown 3 Juan River with the Contact SUIR Recreation, NA-AQ Life Warm 1, NA- Agriculture

COSJSJ12a_8700 Rio Blanco River 48.5 MILES NA-Primary Unknown Unknown 3 Contact Recreation, NA-AQ Life Warm 2, NA- Agriculture

COSJSJ12b_8700 Tributaries to the San 71.7 MILES NA-Primary Unknown Unknown 3 Juan River within the Contact SUIR Recreation, NA-AQ Life Warm 2, NA-

Agriculture

| COSPBD01_0600 Dig Bry Creek and 48.2 MILES NS-AQ Life Selenium, E.coli Unknown 5 tributaires from Warm 2, NS- source to S. Platte Primary River Contact Recreation, FS-Agriculture

COSPBD04A_0600 Woman and Walnut 2.87 MILES NA- Unknown Unknown 3 Creeks and tributaries Agriculture, NA-AQ Life Warm 2, NA- Water Supply, NA-Primary Contact Recreation

COSPBD04b_00 North and South 1.4082 MILES NA-Secondary Unknown Unknown 2 Walnut Creek, Contact Walnut Creek Recreation, FS- Agriculture, NA-Water Supply, FS-AQ Life Warm 2

COSPBD05_00 N. and S. Walnut 7.38 MILES FS- Unknown Unknown 2 Creeks and tribs Agriculture, FS-Secondary Contact Recreation, NA-Water Supply, FS-AQ

Life Warm 2 Integrated QualityWater Monitoring and Assessment Report, Appendix A

85 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COSPBD06_0600 Upper and South 6.51 MILES NA-AQ Life Unknown Unknown 3 Upper Big Dry Warm 2, NA- Creeks Agriculture, NA-Water Supply, NA- Secondary Contact Recreation

COSPBE01A_0500 Bear Creek 11.8 MILES FS-Water Unknown Unknown 1 Supply, FS- Primary Contact Recreation, FS-AQ Life Cold 1, FS- Agriculture

COSPBE01A_0610 Bear Creek, Witter 4.6 MILES FS-Water Bioassessments, Unknown 5 Gulch to inlet of Supply, FS- Temperature Evergreen Lake Primary Contact Recreation, NS-AQ Life Cold 1, FS- Agriculture

COSPBE01B_0500 Bear Creek 1.81 MILES FS- Unknown Unknown 1 | Agriculture, FS-AQ Life Cold 2, FS- Water Supply, FS-Primary Contact Recreation

COSPBE01E_0500 Bear Ck, Evergreen 7.9 MILES FS- Unknown Unknown 2 Lake to Harriman Agriculture, II- Ditch AQ Life Cold 1, FS-Water Supply, FS- Primary Contact Recreation

COSPBE01E_0510 Bear Ck, Evergreen 4 MILES FS-Primary Temperature Unknown 5 Lake to Harriman Contact Ditch Recreation, FS-Water Supply, NS- AQ Life Cold 1, FS- Agriculture

COSPBE02_0500 Bear Creek 3.8 MILES FS- Unknown Unknown 1 Agriculture, FS-AQ Life Warm 1, FS- Water Supply, FS-Primary Contact

Recreation Integrated QualityWater Monitoring and Assessment Report, Appendix A

86 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COSPBE02_0501 Bear Creek below 4.2 MILES FS-Water E.coli Unknown 5 Kipling Supply, NS- Primary Contact Recreation, II- AQ Life Warm 1, FS- Agriculture

COSPBE03_0500 Bear Creek tributaries 41.7 MILES FS-AQ Life Unknown Unknown 1 Cold 1, FS- Water Supply, FS-Primary Contact Recreation, FS-Agriculture

COSPBE04A_0500 All tributaries to Bear 33.9 MILES FS-Primary Unknown Unknown 1 Creek Contact Recreation, FS-Water Supply, FS-AQ Life Warm 2, FS-Agriculture

COSPBE05_0500 Sawmill, 23.6 MILES FS-Water Unknown Unknown 1 Troublesome, & Cold Supply, FS-

Springs Gulches, and Primary | Turkey Crk Contact Recreation, FS- Agriculture, FS-AQ Life Cold 2

COSPBE05_0501 Swede Kerr Gulch 5.9 MILES FS-Water E.coli Unknown 5 Supply, FS- Agriculture, NS-Primary Contact Recreation, FS-AQ Life Cold 2

COSPBE06A_0500 Turkey Creek and 22.2 MILES FS- Unknown Unknown 1 tributaries Agriculture, FS-AQ Life Cold 1, FS- Water Supply, FS-Primary Contact Recreation

COSPBE06B_0500 North Turkey Creek 12.8 MILES FS-Primary Unknown Unknown 1 Contact Recreation, FS- Agriculture, FS-AQ Life Cold 1, FS-

Water Supply Integrated QualityWater Monitoring and Assessment Report, Appendix A

87 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COSPBE07_0500 Bear Creek and 26.6 MILES FS- Unknown Unknown 1 tributaries within Mt. Agriculture, Evans Wilderness FS-Primary Area Contact Recreation, FS-AQ Life Cold 1, FS- Water Supply

COSPBO01_0800 Boulder Creek & 21.1 MILES FS- Unknown Unknown 2 Tribs - Wilderness Agriculture, II- AQ Life Cold 1, FS-Water Supply, FS- Primary Contact Recreation

COSPBO02a_0800 Boulder Creek and 50.5 MILES FS-Primary Unknown Unknown 2 tribs from Indian Contact Peaks to N Boulder Recreation, Creek FS- Agriculture, II- AQ Life Cold 1, FS-Water Supply

COSPBO02b_0800 Boulder Creek and 50.7 MILES II-AQ Life Unknown Unknown 2 | tribs from N Boulder Cold 1, FS- Creek to 13th Water Supply, Boulder FS- Agriculture, FS-Primary Contact Recreation

COSPBO02b_0801 Boulder Creek - 13th 4.17 MILES NS-Primary E.coli Unknown 4A Street in Boulder to Contact S. Boulder Creek Recreation, FS- Agriculture, II- AQ Life Cold 1, FS-Water Supply

COSPBO03_0800 Boulder Creek 20.1 MILES FS-Primary Unknown Unknown 2 Contact Recreation, FS-Water Supply, FS- Agriculture, II- AQ Life Cold 1

COSPBO04A_0800 South Boulder Creek, 88.5 MILES FS- Unknown Unknown 1 source to outlet Gross Agriculture, Reservoir. FS-AQ Life Cold 1, FS- Water Supply, FS-Primary Contact

Recreation Integrated QualityWater Monitoring and Assessment Report, Appendix A

88 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COSPBO04A_0801 Gamble Gulch 3.72 MILES FS- Cadmium, pH, Mining 4A Agriculture, Copper, Zinc FS-Primary Contact Recreation, FS-Water Supply, NS- AQ Life Cold 1

COSPBO04B_0800 South Boulder Creek 28.4 MILES NA-Water Unknown Unknown 3 & tribs Supply, NA- Agriculture, NA-AQ Life Cold 1, NA- Primary Contact Recreation

COSPBO04c_0800 Cowdrey Drainage 1 MILES NA-AQ Life Unknown Unknown 3 Warm 2, NA- Water Supply, NA-Primary Contact Recreation, NA-

Agriculture

| COSPBO04d_0800 Cowdrey Drainage 1 MILES NA- Unknown Unknown 3 below Davidson Ditch Agriculture, NA-AQ Life Warm 2, NA- Water Supply, NA-Primary Contact Recreation

COSPBO05_0800 South Boulder Creek 3.7 MILES FS-Primary Unknown Unknown 1 Contact Recreation, FS- Agriculture, FS-Water Supply, FS-AQ Life Warm 1

COSPBO06_0800 Coal Creek 15.9 MILES FS- Unknown Unknown 1 Agriculture, FS-AQ Life Cold 2, FS- Water Supply, FS-Primary Contact Recreation

COSPBO07A_0800 Coal Creek - HWY 5.6 MILES FS-Primary Unknown Unknown 1 93 to HWY 36 Contact Recreation, FS- Agriculture, FS-AQ Life

Integrated QualityWater Monitoring and Assessment Report, Appendix A Warm 1

89 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COSPBO07B_0800 Coal Creek from 16.6 MILES NS-Primary E.coli Unknown 5 Highway 36 to Contact Boulder Creek Recreation, FS- Agriculture, II- AQ Life Warm 2

COSPBO08_0800 Tribs to S. Boulder 15.6 MILES FS-Primary Unknown Unknown 1 Creek and Coal Creek Contact Recreation, FS- Agriculture, FS-AQ Life Warm 2, FS- Water Supply

COSPBO08_0801 Rock Creek 3.4 MILES NS-AQ Life Selenium Unknown 5 Warm 2, FS- Water Supply, II-Primary Contact Recreation, FS-Agriculture

COSPBO09_0800 Boulder Creek -S. 7.72 MILES FS- Ammonia Unknown 4A Boulder Creek to Agriculture,

Coal Creek NS-AQ Life | Warm 1, FS- Water Supply, FS-Primary Contact Recreation

COSPBO09_0810 Boulder Ck from 3.84 MILES FS-Primary Bioassessments, Unknown 5 107th St to Coal Ck Contact Ammonia confl Recreation, FS-Water Supply, NS- AQ Life Warm 1, FS- Agriculture

COSPBO10_0800 Boulder Creek from 6.78 MILES FS-Water Ammonia, E.coli Unknown 5 Coal Creek to St. Supply, NS- Vrain confluence Primary Contact Recreation, NS-AQ Life Warm 1, FS- Agriculture

COSPBO11_0800 Tributaries to 38.9 MILES FS-AQ Life Unknown Unknown 1 Boulder Creek Warm 2, FS- Water Supply, FS-Primary Contact Recreation,

FS-Agriculture Integrated QualityWater Monitoring and Assessment Report, Appendix A

90 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COSPBT01_0900 Tributaries to the Big 141.4 MILES FS-Primary Copper Unknown 5 Thompson River in Contact RMNP Recreation, FS-Water Supply, FS- Agriculture, NS-AQ Life Cold 1

COSPBT02_0900 Big Thompson River 144.4 MILES FS- Copper, Unknown 5 Agriculture, Temperature, NS-AQ Life Zinc, Cadmium Cold 1, II- Water Supply, FS-Primary Contact Recreation

COSPBT02_0901 Fish Creek below 3.41 MILES FS- Cadmium, Unknown 5 Marys Lake Agriculture, Copper, NS-AQ Life Temperature, Cold 1, II- Zinc, pH Water Supply, NS-Primary Contact Recreation

COSPBT03_0900 Big Thompson River 5.45 MILES FS-Primary Copper Unknown 5 | Contact Recreation, FS-Water Supply, NS- AQ Life Cold 2, FS- Agriculture

COSPBT04a_0900 Big Thompson River 2.19 MILES NS-AQ Life Selenium Unknown 5 Cold 2, FS- Water Supply, FS-Primary Contact Recreation, FS-Agriculture

COSPBT04b_0900 Big Thompson River 4.11 MILES FS- Selenium Unknown 5 Agriculture, NS-AQ Life Warm 2, NA- Primary Contact Recreation

COSPBT04c_0900 Big Thompson River 4.08 MILES FS- Unknown Unknown 1 Agriculture, FS-AQ Life Warm 2, FS- Primary Contact

Recreation Integrated QualityWater Monitoring and Assessment Report, Appendix A

91 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COSPBT05_0900 Big Thompson River 18.9 MILES FS- Selenium Unknown 5 I-25 to S. Platte River Agriculture, confluence NS-AQ Life Warm 2, FS- Primary Contact Recreation

COSPBT06_0900 Tributaries to Big 207.90 MILES FS- Copper Unknown 5 Thompson River Agriculture, NS-AQ Life Warm 2, FS- Primary Contact Recreation

COSPBT06_0901 Dry Creek 6.42 MILES FS- Copper Unknown 5 Agriculture, NS-AQ Life Warm 2, II- Primary Contact Recreation

COSPBT07_0900 Buckhorn Creek 31.83 MILES FS-Water Unknown Unknown 1 Supply, FS-AQ Life Cold 1,

FS- | Agriculture, FS-Primary Contact Recreation

COSPBT07_0901 North Fork of Big 13.88 MILES FS- Copper Unknown 5 Thompson River Agriculture, NS-AQ Life Cold 1, FS- Water Supply, FS-Primary Contact Recreation

COSPBT08_0900 Tributaries to Little 83.97 MILES NS-AQ Life Temperature, Unknown 5 Thompson River Cold 1, FS- D.O. Primary Contact Recreation, FS- Agriculture, FS-Water Supply

COSPBT08_0901 Little Thompson 15.18 MILES FS-Water Sulfates, D.O., Unknown 5 River from source to Supply, FS- Temperature St Vrain Supply Canal Agriculture, FS-Primary Contact Recreation, NS-AQ Life

Cold 1 Integrated QualityWater Monitoring and Assessment Report, Appendix A

92 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COSPBT09_0900 Little Thompson - 24.2 MILES NS-Primary Bioassessments, Unknown 5 Culver ditch to Big Contact Selenium, Thompson River Recreation, Copper, E.coli FS- Agriculture, NS-AQ Life Warm 2

COSPBT10_0900 Little Thompson 23.1 MILES FS-AQ Life Unknown Unknown 1 tributaries - Culver Warm 2, FS- ditch to Big Agriculture, Thompson FS-Primary Contact Recreation

COSPBT10_0901 Big Hollow 4.68 MILES NS-AQ Life Selenium Unknown 5 Warm 2, FS- Primary Contact Recreation, FS-Agriculture

COSPCH01_0600 Cherry Creek 33.7 MILES FS- Unknown Unknown 1 Agriculture, FS-Primary Contact Recreation,

FS-AQ Life | Warm 2, FS- Water Supply

COSPCH03_0600 Cherry Creek below 6.56 MILES FS- Selenium, E.coli Unknown 5 the dam Agriculture, NS-AQ Life Warm 2, FS- Water Supply, NS-Primary Contact Recreation

COSPCH03_0601 Cherry Creek from 5.31 MILES NS-Primary Iron, Selenium, Unknown 5 Holly St to S Platte Contact E.coli River confl Recreation, FS-Water Supply, NS- AQ Life Warm 2, FS- Agriculture

COSPCH04_0600 Cherry Creek 316.01 MILES NA-Primary Unknown Unknown 3 tributaries Contact Recreation, NA- Agriculture, NA-AQ Life

Warm 2 Integrated QualityWater Monitoring and Assessment Report, Appendix A

93 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COSPCH04_0601 Goldsmith Gulch, 9.1086 MILES NS-AQ Life Selenium Unknown 5 Cottonwood Creek Warm 2, FS- Agriculture, FS-Primary Contact Recreation

COSPCL01_0700 Clear Creek 19.19411 MILES FS-AQ Life Unknown Unknown 1 Cold 1, FS- Water Supply, FS-Primary Contact Recreation, FS-Agriculture

COSPCL01_0701 Kearney Gulch, 10.09136 MILES FS- Unknown Unknown 2 Grizzly Gulch Agriculture, FS-Primary Contact Recreation, FS-Water Supply, II-AQ Life Cold 1

COSPCL02A_0700 Mainstem of Clear 6.2 MILES FS- Copper, Zinc, Mining 5 Creek, I-70 Bridge to Agriculture, Cadmium W Fork Clear Creek NS-AQ Life

Cold 1, FS- | Water Supply, FS-Primary Contact Recreation

COSPCL02B_0700 Mainstem of Clear 3.2 MILES FS- Cadmium, Mining 5 Creek, W Fork Clear Agriculture, Copper, Zinc Creek to Mill Creek NS-AQ Life Cold 1, FS- Water Supply, FS-Primary Contact Recreation

COSPCL02B_0701 Clear Creek tibs, W 9.86 MILES FS-Water Cadmium, Zinc Unknown 5 Fork Clear Creek to Supply, FS- below Mill Creek Primary Contact Recreation, NS-AQ Life Cold 1, FS- Agriculture

COSPCL02C_0700 Mainstem of Clear 5.65 MILES NS-AQ Life Cadmium, Zinc Mining 5 Creek, Mill Creek to Cold 1, FS- Argo Tunnel Water Supply, FS-Primary Contact Recreation,

FS-Agriculture Integrated QualityWater Monitoring and Assessment Report, Appendix A

94 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COSPCL02C_0701 Clear Creek tribs, 18.5 MILES FS- Cadmium Unknown 5 below Mill Creek to Agriculture, Argo Tunnel NS-AQ Life Cold 1, FS- Water Supply, FS-Primary Contact Recreation

COSPCL03A_0700 Mainstem of South 9.47 MILES NA-Primary Copper, Zinc Mining 5 Clear Creek, Contact including all Recreation, tributaries FS- Agriculture, NS-AQ Life Cold 1, FS- Water Supply

COSPCL03B_0700 Leavenworth Creek 6.4 MILES NA-Primary Lead, Zinc, Mining 5 Contact Copper Recreation, FS-Water Supply, FS- Agriculture, NS-AQ Life Cold 2

COSPCL04_0700 Clear Creek, west 4.17 MILES FS- Unknown Unknown 1 | Agriculture, FS-AQ Life Cold 1, FS- Water Supply, FS-Primary Contact Recreation

COSPCL05_0700 Clear Creek, west 9.23 MILES FS- Unknown Unknown 2 Agriculture, FS-AQ Life Cold 1, FS- Water Supply, NA-Primary Contact Recreation

COSPCL06_0700 Clear Creek, west 18.3 MILES FS-Water Unknown Unknown 1 tributaries Supply, FS- Primary Contact Recreation, FS-AQ Life Cold 1, FS- Agriculture

COSPCL06_0701 Mad Creek 3.42 MILES NS-AQ Life Zinc Mining 5 Cold 1, FS- Water Supply, FS-Primary Contact Recreation,

FS-Agriculture Integrated QualityWater Monitoring and Assessment Report, Appendix A

95 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COSPCL06_0702 Hoop Creek 1.5 MILES FS- Unknown Unknown 2 Agriculture, II- AQ Life Cold 1, FS-Water Supply, FS- Primary Contact Recreation

COSPCL07_0700 Woods Creek 2.14 MILES NA-AQ Life Unknown Unknown 3 Cold 2, NA- Primary Contact Recreation

COSPCL08_0700 Lion Creek 1.91 MILES FS-AQ Life Unknown Unknown 1 Cold 2, FS- Primary Contact Recreation

COSPCL09a_0700 Unnamed tributaries 7.6 MILES FS-AQ Life Unknown Unknown 1 to Fall River. Cold 1, FS- Water Supply, FS-Primary Contact Recreation,

FS-Agriculture

|

COSPCL09a_0701 Fall River mainstem 10.2 MILES FS- Copper Unknown 4A Agriculture, NS-AQ Life Cold 1, FS- Water Supply, FS-Primary Contact Recreation

COSPCL09a_0702 Silver Creek 2.18 MILES FS-Primary Lead, Copper Unknown 5 Contact Recreation, FS- Agriculture, NS-AQ Life Cold 1, FS- Water Supply

COSPCL09b_0700 Trail Creek 4 MILES FS-Primary pH, Cadmium, Unknown 5 Contact Copper, Zinc, Recreation, Lead FS-Water Supply, NS- AQ Life Cold 1, FS-

Agriculture Integrated QualityWater Monitoring and Assessment Report, Appendix A

96 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COSPCL10_0700 Chicago Creek 27.4 MILES FS- Unknown Unknown 1 Agriculture, FS-AQ Life Cold 1, FS- Water Supply, FS-Primary Contact Recreation

COSPCL11_0700 Clear Creek - Argo 21 MILES FS- Cadmium, Unknown, 5 Tunnel to Farmers Agriculture, Lead, Zinc Mining Highline Canal NS-AQ Life Cold 1, FS- Water Supply, FS-Primary Contact Recreation

COSPCL12_0700 Clear Creek 62.2 MILES FS-Water Unknown Unknown 1 tributaries Supply, FS- Primary Contact Recreation, FS-AQ Life Cold 2, FS- Agriculture

COSPCL13a_00 North Clear Creek 31 MILES FS-AQ Life Unknown Unknown 2 | Cold 1, FS- Water Supply, NA-Primary Contact Recreation, FS-Agriculture

COSPCL13b_0700 North Clear Creek 18.2 MILES FS- Unknown Unknown 1 tributaries Agriculture, FS-AQ Life Cold 2, FS- Primary Contact Recreation

COSPCL13b_0701 Mainstem of North 7.56 MILES FS-Primary Manganese, Mining 5 Clear Creek Contact Zinc, Recreation, Cadmium, Iron, FS- Unknown Agriculture, NS-AQ Life Cold 2

COSPCL14a_0700 Clear Creek -Farmers 3.79 MILES FS-Water Unknown Unknown 1 Highline Canal to Supply, FS- Youngfield St. Secondary Contact Recreation, FS- Agriculture, FS-AQ Life

Warm 2 Integrated QualityWater Monitoring and Assessment Report, Appendix A

97 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COSPCL14a_0710 Croke Canal 3.11 MILES NS-AQ Life Bioassessments Unknown 5 Diversion to McIntyre Warm 2, FS- Street Agriculture, FS-Secondary Contact Recreation, FS-Water Supply

COSPCL14b_00 Clear Creek - Denver 0.52 MILES NA- Bioassessments, Unknown 5 Water Conduit to Agriculture, BOD, sediment Youngfield St. NS-AQ Life Warm 2, NA- Water Supply, NA-Primary Contact Recreation

COSPCL15_0700 Clear Creek - 11.9 MILES FS- Bioassessments, Unknown 5 Youngfield St. to S. Agriculture, E.coli, BOD, Platte confluence NS-AQ Life sediment Warm 1, FS- Water Supply, NS-Primary Contact Recreation

COSPCL16a_00 Lena Gulch 6.73 MILES NA-AQ Life Unknown Unknown 3 | Warm 2, NA- Water Supply, NA- Agriculture, NA-Primary Contact Recreation

COSPCL16b_0700 Clear Creek 5.34 MILES NA-Secondary Unknown Unknown 3 tributaries Contact Recreation, NA-AQ Life Warm 2, NA- Agriculture

COSPCL17b_0700 Ralston Creek 35.2 MILES FS-Primary Uranium Unknown 5 Contact Recreation, FS-Water Supply, NS- AQ Life Cold 2, FS- Agriculture

COSPCL18A_0700 Ralston Creek 9.94 MILES FS- E.coli Unknown 5 Agriculture, NS-Secondary Contact Recreation, FS-AQ Life Warm 2, FS-

Water Supply Integrated QualityWater Monitoring and Assessment Report, Appendix A

98 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COSPCL18B_0700 Ralston Creek 33.5 MILES FS-Secondary Unknown Unknown 1 Contact Recreation, FS-Water Supply, FS-AQ Life Warm 2, FS-Agriculture

COSPCL19_0700 Clear Creek 5.74 MILES FS- Unknown Unknown 1 tributaries Agriculture, FS-Water Supply, FS- Primary Contact Recreation, FS-AQ Life Cold 1

COSPCP01_1000 Cache La Poudre 172.2 MILES FS-Primary Unknown Unknown 1 River and tributaries Contact in wilderness Recreation, FS-Water Supply, FS- Agriculture, FS-AQ Life Cold 1

COSPCP01_1001 Cache Le Poudre, 18.2 MILES NA-Water Unknown Unknown 3 | Mainstem Supply, NA- Agriculture, NA-AQ Life Cold 1, NA- Primary Contact Recreation

COSPCP02a_1000 Cache La Poudre 199 MILES FS-Water Unknown Unknown 1 tribs, RMNP to S Supply, FS- Fork Cache La Primary Poudre Contact Recreation, FS-AQ Life Cold 1, FS- Agriculture

COSPCP02a_1001 Mainstem Cache La 29.3 MILES FS-Water Unknown Unknown 1 Poudre River, from Supply, FS- RMNP to S Fork Agriculture, Cache La Poudre FS-AQ Life Cold 1, FS- Primary Contact Recreation

COSPCP02b_1000 Cache La Poudre 123.5 MILES FS-Water Unknown Unknown 1 tribs, S Fork Cache La Supply, FS- Poudre to N Poudre Agriculture, Supply Canal FS-AQ Life Cold 1, FS- Primary Contact

Integrated QualityWater Monitoring and Assessment Report, Appendix A Recreation

99 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COSPCP02b_1001 Mainstem Cache La 16.2 MILES FS- Unknown Unknown 1 Poudre River, S Fork Agriculture, Cache La Poudre to N FS-Primary Poudre Supply Canal Contact Recreation, FS-AQ Life Cold 1, FS- Water Supply

COSPCP06_1000 North Fork Cache La 320.8 MILES FS-Primary Unknown Unknown 2 Poudre and Contact Tributaries Recreation, FS- Agriculture, II- AQ Life Cold 1, FS-Water Supply

COSPCP07_1000 N. Fork Cache La 0.04 MILES FS- Cadmium, Lead Unknown 5 Poudre River Agriculture, NS-AQ Life Cold 2, FS- Water Supply, FS-Primary Contact Recreation

COSPCP07_103D N. Fork Cache La 23.5 MILES FS-Primary Lead, Cadmium Unknown 5 | Poudre River below Contact Halligan Reservoir Recreation, FS- Agriculture, FS-Water Supply, NS- AQ Life Cold 2

COSPCP08_1000 Cache La Poudre 307.7 MILES FS- Unknown Unknown 2 River, North Fork Agriculture, tributaries FS-AQ Life Cold 2, FS- Water Supply, II-Primary Contact Recreation

COSPCP09_1000 Rabbit and Lone Pine 48.5 MILES FS- Unknown Unknown 2 Creeks Agriculture, II- AQ Life Cold 1, FS-Water Supply, FS- Primary Contact

Recreation Integrated QualityWater Monitoring and Assessment Report, Appendix A

100 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COSPCP10_1000 Cache La Poudre 16 MILES FS-Primary Copper, Unknown 5 River Contact Temperature Recreation, FS- Agriculture, FS-Water Supply, NS- AQ Life Cold 2

COSPCP11_1000 Cache La Poudre 8.05 MILES FS- Selenium Unknown 5 River Agriculture, FS-Water Supply, FS- Primary Contact Recreation, NS-AQ Life Warm 2

COSPCP12_1000 Cache La Poudre 31.2 MILES NS-Primary Selenium, E.coli Unknown 5 above Eaton Draw Contact Recreation, FS- Agriculture, NS-AQ Life

Warm 2

| COSPCP12_1001 Cache La Poudre 6.7 MILES NS-Primary Selenium, E.coli Unknown 5 River below Eaton Contact Draw Recreation, FS- Agriculture, NS-AQ Life Warm 2

COSPCP13a_1000 Cache La Poudre 719.7 MILES FS-Primary Selenium Unknown 5 River and Tributaries Contact Recreation, FS- Agriculture, NS-AQ Life Warm 2

COSPCP13a_1001 Fossil Creek and 42.3 MILES FS- Selenium, E.coli Unknown 5 Spring Creek Agriculture, NS-AQ Life Warm 2, NS- Primary Contact Recreation

COSPCP13b_1000 Boxelder Creek 43 MILES FS-Primary Selenium Unknown 5 Contact Recreation, NS-AQ Life Warm 2, FS-

Agriculture Integrated QualityWater Monitoring and Assessment Report, Appendix A

101 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COSPCP13c_1000 Boxelder Creek and 18.4 MILES NA- Unknown Unknown 3 Sand Creek Agriculture, NA-AQ Life Cold 2, NA- Water Supply, NA-Primary Contact Recreation

COSPLA01_0300 Laramie River 126.3 MILES FS-Primary Unknown Unknown 1 Tributaries Contact Recreation, FS- Agriculture, FS-AQ Life Cold 1, FS- Water Supply

COSPLA02A_0300 Mainstem Laramie 359.9 MILES II-AQ Life Unknown Unknown 2 River and tribs Cold 1, FS- Water Supply, FS-Primary Contact Recreation, FS-Agriculture

COSPLA02B_0300 Mainstem Laramie 30 MILES FS- Unknown Unknown 1

River, below NF Agriculture, | boundary FS-AQ Life Cold 1, FS- Water Supply, FS-Primary Contact Recreation

COSPLS01_0600 South Platte River 20.3 MILES FS- Selenium, Unknown 5 Agriculture, Manganese NS-AQ Life Warm 2, FS- Water Supply, FS-Primary Contact Recreation

COSPLS01_1500 South Platte River 244.2 MILES FS-Water Selenium, Unknown 5 Supply, NS- Manganese AQ Life Warm 2, FS-Primary Contact Recreation, FS-Agriculture

COSPLS01_2100 South Platte River 41.5 MILES NS-AQ Life Manganese, Unknown 5 below Ovid Warm 2, FS- Selenium Agriculture, FS-Primary Contact Recreation, FS-Water

Supply Integrated QualityWater Monitoring and Assessment Report, Appendix A

102 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COSPLS02a_0600 South Platte River, 94.1 MILES NA- Unknown Unknown 3 tributaries Agriculture, NA-AQ Life Warm 2, NA- Secondary Contact Recreation

COSPLS02a_1300 Kiowa, Comanche, 447.9 MILES NA-AQ Life Unknown Unknown 3 Mule & Rock Creeks Warm 2, NA- with tributaries Agriculture, NA-Secondary Contact Recreation

COSPLS02a_1400 South Platte River, 1,259.60 MILES NA- Unknown Unknown 3 tributaries Agriculture, NA-AQ Life Warm 2, NA- Secondary Contact Recreation

COSPLS02a_1500 South Platte River, 1,262.10 MILES FS- Unknown Unknown 1 tributaries Agriculture, FS-AQ Life Warm 2, FS-

Secondary | Contact Recreation

COSPLS02a_1600 South Platte River, 1,243 MILES NA-Secondary Unknown Unknown 3 tributaries Contact Recreation, NA- Agriculture, NA-AQ Life Warm 2

COSPLS02a_1700 South Platte River, 569.2 MILES NA- Unknown Unknown 3 tributaries Agriculture, NA-AQ Life Warm 2, NA- Secondary Contact Recreation

COSPLS02a_1900 Unnamed tributary to 28.7 MILES NA- Unknown Unknown 3 the South Platte Agriculture, River. NA-AQ Life Warm 2, NA- Secondary Contact Recreation

COSPLS02a_2000 South Platte River, 80 MILES NA- Unknown Unknown 3 tributaries Agriculture, NA-AQ Life Warm 2, NA- Secondary Contact

Recreation Integrated QualityWater Monitoring and Assessment Report, Appendix A

103 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COSPLS02a_2100 South Platte River, 108.9 MILES NA-AQ Life Unknown Unknown 3 tributaries Warm 2, NA- Secondary Contact Recreation, NA- Agriculture

COSPLS02b_0600 Tributaries to South 36.4 MILES FS-AQ Life Unknown Unknown 1 Platte Warm 2, FS- Primary Contact Recreation, FS-Agriculture

COSPLS02b_1300 Kiowa Creek 115.2 MILES FS- Unknown Unknown 1 Agriculture, FS-AQ Life Warm 2, FS- Primary Contact Recreation

COSPLS02b_1400 Bijou Creek 44.7 MILES FS- Unknown Unknown 1 Agriculture, FS-AQ Life Warm 2, FS-

Primary | Contact Recreation

COSPLS02b_1500 Wildcat Creek and 525.3 MILES FS- Unknown Unknown 1 unnamed tribs, W Agriculture, Fork of Cottonwood FS-AQ Life Creek Warm 2, FS- Primary Contact Recreation

COSPLS02B_1600 Tributaries to South 60.8 MILES FS- Selenium, E.coli Unknown 5 Platte, Beaver Creek Agriculture, NS-Primary Contact Recreation, NS-AQ Life Warm 2

COSPLS02b_1700 Pawnee Creek, Sand 37.3 MILES FS- Unknown Unknown 1 Creek, Baymen Creek Agriculture, FS-AQ Life Warm 2, FS- Primary Contact Recreation

COSPLS02b_1900 Unnamed tribs to 3.46 MILES FS-AQ Life Unknown Unknown 1 South Platte River Warm 2, FS- Agriculture, FS-Primary Contact

Recreation Integrated QualityWater Monitoring and Assessment Report, Appendix A

104 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COSPMS01a_0600 South Platte River - 18.9 MILES NS-AQ Life Ammonia, Unknown 5 Big Dry to St Vrain Warm 2, FS- Nitrate/Nitrite, Water Supply, E.coli NS-Primary Contact Recreation, FS-Agriculture

COSPMS01b_0600 South Platte River - 51.6 MILES FS- Selenium Unknown 5 St. Vrain to Morgan Agriculture, County FS-Water Supply, FS- Primary Contact Recreation, NS-AQ Life Warm 2

COSPMS03a_0600 Tributaries to South 640.7 MILES FS-Primary Unknown Unknown 1 Platte River Contact Recreation, FS-AQ Life Warm 2, FS- Agriculture

COSPMS03a_1100 Tributaries to South 321.4 MILES FS-Secondary Unknown Unknown 1 Platte River Contact

Recreation, | FS- Agriculture, FS-AQ Life Warm 2

COSPMS03a_1200 Tributaries to South 555.9 MILES FS- Unknown Unknown 1 Platte River Agriculture, FS-AQ Life Warm 2, FS- Secondary Contact Recreation

COSPMS03b_0600 Unnamed 24.5 MILES NA- Unknown Unknown 3 Hayesmount Agriculture, Tributary NA-AQ Life Warm 2, NA- Primary Contact Recreation

COSPMS05a_1100 Lone Tree Creek 66.21 MILES FS-Secondary Unknown Unknown 1 Contact Recreation, FS- Agriculture, FS-AQ Life

Warm 2 Integrated QualityWater Monitoring and Assessment Report, Appendix A

105 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COSPMS05b_0600 Mainstem of Boxelder 14.64 MILES NA- Unknown Unknown 3 Creek Agriculture, NA-Secondary Contact Recreation, NA-AQ Life Warm 2

COSPMS05c_0600 Box Elder Creek 61.32 MILES NA- Unknown Unknown 3 Agriculture, NA-AQ Life Warm 2, NA- Secondary Contact Recreation

COSPMS05c_1200 Crow Creek 78.10 MILES NA- Unknown Unknown 3 Agriculture, NA-AQ Life Warm 2, NA- Secondary Contact Recreation

COSPMS06_0600 Unnamed tributary to 41.7 MILES NA-AQ Life Unknown Unknown 3 Lost Creek Warm 2, NA- Secondary

Contact | Recreation, NA- Agriculture

COSPRE01_2400 Republican River, 20.3 MILES FS-Water Unknown Unknown 1 South Fork Supply, FS- Primary Contact Recreation, FS-AQ Life Warm 1, FS- Agriculture

COSPRE03_2300 Republican River - 46 MILES FS-Primary Unknown Unknown 1 North Fork Contact Recreation, FS-Water Supply, FS- Agriculture, FS-AQ Life Cold 1

COSPRE04_2200 87.6 MILES FS- E.coli Unknown 5 Agriculture, FS-AQ Life Warm 1, NS- Primary Contact

Recreation Integrated QualityWater Monitoring and Assessment Report, Appendix A

106 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COSPRE05_2200 Black Wolf Creek 17.4 MILES FS- Unknown Unknown 2 Agriculture, II- AQ Life Warm 2, FS-Water Supply, II- Primary Contact Recreation

COSPRE06_2200 Republican River 1,010 MILES NA- Unknown Unknown 3 tributaries Agriculture, NA-AQ Life Warm 2, NA- Secondary Contact Recreation

COSPRE06_2300 Republican River 1,224.50 MILES NA- Unknown Unknown 3 tributaries Agriculture, NA-AQ Life Warm 2, NA- Secondary Contact Recreation

COSPRE06_2400 Republican River 1,652.40 MILES NA- Unknown Unknown 3 tributaries Agriculture,

NA-AQ Life | Warm 2, NA- Secondary Contact Recreation

COSPRE06_2600 Republican River 492.4 MILES NA-AQ Life Unknown Unknown 3 tributaries Warm 2, NA- Secondary Contact Recreation, NA- Agriculture

COSPRE06_2700 Republican River 187.4 MILES NA-AQ Life Unknown Unknown 3 tributaries Warm 2, NA- Secondary Contact Recreation, NA- Agriculture

COSPRE06_2800 Republican River 131.1 MILES NA- Unknown Unknown 3 tributaries Agriculture, NA-AQ Life Warm 2, NA- Secondary Contact

Recreation Integrated QualityWater Monitoring and Assessment Report, Appendix A

107 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COSPRE06_2900 Republican River 55.6 MILES NA-Secondary Unknown Unknown 3 tributaries Contact Recreation, NA- Agriculture, NA-AQ Life Warm 2

COSPRE07_3000 Smoky Hill River and 266.2 MILES NA-Secondary Unknown Unknown 3 tributaries Contact Recreation, NA-AQ Life Warm 2, NA- Agriculture

COSPRE07_3100 Smoky Hill River and 306.7 MILES NA- Unknown Unknown 3 tributaries Agriculture, NA-AQ Life Warm 2, NA- Secondary Contact Recreation

COSPRE07_3200 Smoky Hill River and 157.5 MILES NA- Unknown Unknown 3 tributaries Agriculture, NA-AQ Life Warm 2, NA-

Secondary | Contact Recreation

COSPSV01_0800 Tributaries to St. 52.6 MILES FS-Primary Unknown Unknown 1 Vrain Creek in Contact Wilderness and Recreation, RMNP FS-Water Supply, FS-AQ Life Cold 1, FS-Agriculture

COSPSV02a_0800 St. Vrain Creek and 99.9 MILES FS- Zinc Unknown 5 tribs, RNMP to East Agriculture, NF boundary FS-Water Supply, FS- Primary Contact Recreation, NS-AQ Life Cold 1

COSPSV02b_0800 St. Vrain Creek 31.9 MILES FS- Temperature, Unknown 5 Agriculture, Copper NS-AQ Life Cold 1, FS- Water Supply, FS-Primary Contact

Recreation Integrated QualityWater Monitoring and Assessment Report, Appendix A

108 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COSPSV03_0800 St. Vrain Creek - 27.3 MILES NS-AQ Life Ammonia, Unknown 4A Hygiene Rd to S. Warm 1, FS- Unknown Platte confluence Primary Contact Recreation, FS-Agriculture

COSPSV03_0810 St. Vrain Ck from 2.36 MILES FS- Ammonia, Unknown 5 Left Hand Ck to Agriculture, Unknown, Boulder Ck FS-Primary Bioassessments Contact Recreation, NS-AQ Life Warm 1

COSPSV03_0820 St. Vrain Ck from 2.48 MILES FS- Ammonia, Unknown 4A Hover Rd to Left Agriculture, Unknown Hand Ck FS-Primary Contact Recreation, NS-AQ Life Warm 1

COSPSV04a_0800 Left Hand Creek 21.5 MILES NS-AQ Life Zinc, pH, Mining 5 Cold 1, FS- Copper Water Supply, FS-Primary

Contact | Recreation, FS-Agriculture

COSPSV04b_0800 James Creek from 12.66 MILES FS- Unknown Unknown 1 source to Lefthand Agriculture, Creek FS-AQ Life Cold 1, FS- Water Supply, FS-Primary Contact Recreation

COSPSV04b_0801 Little James Creek 5.98 MILES FS-Water Zinc, Mining 5 Supply, FS- Manganese, Primary Lead, pH, Contact Copper Recreation, NS-AQ Life Cold 1, FS- Agriculture

COSPSV04c_0800 Left Hand Creek 21.1 MILES NS-AQ Life Arsenic, Mining 5 below James Creek Cold 1, FS- Copper Water Supply, FS-Primary Contact Recreation,

FS-Agriculture Integrated QualityWater Monitoring and Assessment Report, Appendix A

109 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COSPSV05_0800 Left Hand Creek 8.96 MILES FS- Copper Unknown 5 downstream Feeder Agriculture, canal NS-AQ Life Warm 2, FS- Primary Contact Recreation, FS-Water Supply

COSPSV05_0801 Upstream Lefthand 3.81 MILES NS-Water Manganese Unknown 5 Feeder Canal Supply, FS- Primary Contact Recreation, FS-AQ Life Warm 2, FS- Agriculture

COSPSV06_0800 Tributaries to St. 68.2 MILES FS-Primary Selenium Unknown 5 Vrain Creek Contact Recreation, FS- Agriculture, NS-AQ Life Warm 2

COSPSV06_0801 Dry Creek 4.8 MILES NS-AQ Life Selenium, E.coli Unknown 5 | Warm 2, NA- Agriculture, NS-Primary Contact Recreation

COSPUS01A_0400 South Platte River - 106.47 MILES FS- Unknown Unknown 1 source to North Fork Agriculture, FS-AQ Life Cold 1, FS- Water Supply, FS-Primary Contact Recreation

COSPUS01A_0401 South Fork of South 13.20 MILES FS-Primary Unknown Unknown 2 Platte blw Antero Contact Rsvr Recreation, FS-Water Supply, II-AQ Life Cold 1, FS-Agriculture

COSPUS01A_043D S. Platte River -11 26.9 MILES FS-Water Sedimentation Unknown 4A Mile dam to Supply, FS- Cheesman Res. Primary Contact Recreation, NS-AQ Life Cold 1, FS-

Agriculture Integrated QualityWater Monitoring and Assessment Report, Appendix A

110 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COSPUS01B_0400 South Platte River 23.1 MILES NA-AQ Life Unknown Unknown 3 Tributaries Cold 1, NA- Water Supply, NA-Primary Contact Recreation, NA- Agriculture

COSPUS01B_0500 South Platte River 101.2 MILES NA- Unknown Unknown 3 tributaries Agriculture, NA-AQ Life Cold 1, NA- Water Supply, NA-Secondary Contact Recreation

COSPUS02A_0400 South Platte River 1,264.20 MILES FS-Primary Unknown Unknown 1 Tribs-headwaters to Contact Tarryall Recreation, FS-AQ Life Cold 1, FS- Water Supply, FS-Agriculture

COSPUS02A_0401 Twin Creek 12.7 MILES FS- Unknown Unknown 1

Agriculture, | FS-AQ Life Cold 1, FS- Water Supply, FS-Primary Contact Recreation

COSPUS02A_0402 Twin Creek on USFS 2 MILES FS-Primary Unknown Unknown 2 land Contact Recreation, FS- Agriculture, II- AQ Life Cold 1, FS-Water Supply

COSPUS02A_0403 Salt Creek d/s of N 3 MILES FS-Primary Unknown Unknown 2 Fork South Platte, on Contact USFS land Recreation, FS-Water Supply, FS- Agriculture, II- AQ Life Cold 1

COSPUS02B_0400 Mosquito Creek -S. 8.63 MILES FS- Cadmium, Unknown 5 Mosquito Crk to Agriculture, Lead, Zinc Middle Fork confl NS-AQ Life Cold 1, FS- Water Supply, FS-Primary Contact

Recreation Integrated QualityWater Monitoring and Assessment Report, Appendix A

111 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COSPUS02C_0400 South Mosquito 2.4 MILES NS-AQ Life Cadmium, Unknown 4A Creek Cold 1, NS- Zinc, Iron, Water Supply, Manganese FS-Primary Contact Recreation, FS-Agriculture

COSPUS02C_0401 No Name Creek 1.9 MILES FS- Cadmium, Iron, Unknown 5 Agriculture, Manganese, NS-AQ Life Zinc Cold 1, NS- Water Supply, FS-Primary Contact Recreation

COSPUS03_0500 South Platte River -all 93.9 MILES FS-Primary Unknown Unknown 1 tribs blw Terryall Crk Contact to N. Fork SP Recreation, FS- Agriculture, FS-AQ Life Cold 1, FS- Water Supply

COSPUS03_0501 Trout Creek and tribs 47.5 MILES FS-Primary Sedimentation Unknown 5

on USFS land Contact | Recreation, FS-Water Supply, FS- Agriculture, NS-AQ Life Cold 1

COSPUS03_0502 Pine Creek 12.1 MILES FS- Arsenic Unknown 5 Agriculture, NS-AQ Life Cold 1, FS- Water Supply, FS-Primary Contact Recreation

COSPUS03_0503 Fourmile Creek 9.6 MILES FS-Primary Arsenic, Iron, Unknown 5 Contact Mercury Recreation, FS-Water Supply, NS- AQ Life Cold 1, FS- Agriculture

COSPUS03_0504 Hawkins Gulch 163 MILES II-AQ Life Unknown Unknown 2 Cold 1, FS- Water Supply, FS-Primary Contact Recreation,

FS-Agriculture Integrated QualityWater Monitoring and Assessment Report, Appendix A

112 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COSPUS03_0505 Sugar Creek 10.5 MILES FS- Unknown Unknown 2 Agriculture, II- AQ Life Cold 1, FS-Water Supply, FS- Primary Contact Recreation

COSPUS03_0506 Horse Creek 3.9 MILES FS- Bioassessments Unknown 5 Agriculture, FS-Primary Contact Recreation, NS-AQ Life Cold 1, FS- Water Supply

COSPUS03_0507 West Creek 11.4 MILES FS- Unknown Unknown 2 Agriculture, FS-AQ Life Cold 1, II- Water Supply, FS-Primary Contact Recreation

COSPUS03_0508 Goose Creek 10.7 MILES FS-Primary Unknown Unknown 2 | Contact Recreation, FS- Agriculture, II- AQ Life Cold 1, FS-Water Supply

COSPUS03_0509 Wigwam and Trail 13.1 MILES II-AQ Life Unknown Unknown 2 Creeks Cold 1, FS- Water Supply, FS- Agriculture, FS-Primary Contact Recreation

COSPUS03_053E Trout Creek, not on 6.14 MILES FS- Unknown Unknown 1 USFS land Agriculture, FS-AQ Life Cold 1, FS- Water Supply, FS-Primary Contact Recreation

COSPUS04_0500 North Fork South 278.1 MILES FS-AQ Life Unknown Unknown 1 Platte River -source Cold 1, FS- to S. Platte River Water Supply, FS-Primary Contact Recreation,

FS-Agriculture Integrated QualityWater Monitoring and Assessment Report, Appendix A

113 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COSPUS04_053D Hall Valley Area to 8.38 MILES NA-Primary Copper, pH Mining 5 Geneva Creek Contact Recreation, FS-Water Supply, FS- Agriculture, NS-AQ Life Cold 1

COSPUS05A_0500 Geneva Creek 9.06 MILES FS- Cadmium, Unknown 4A Agriculture, Copper, Zinc NS-AQ Life Cold 1, FS- Primary Contact Recreation

COSPUS05B_0500 Geneva Crk -Scott 28.9 MILES FS-Water Cadmium, Zinc Unknown 4A Gomer Ck to N. Fork Supply, FS- South Platte River Primary Contact Recreation, FS- Agriculture, NS-AQ Life Cold 1

COSPUS05C_0500 Gooseberry Gulch, 2.4 MILES NS-AQ Life Ammonia Unknown 5 | source to Sunset Trail Cold 2, FS- Water Supply, FS-Primary Contact Recreation, FS-Agriculture

COSPUS05D_0500 Gooseberry Gulch, 0.7 MILES FS- Unknown Unknown 1 tribs to Sunset Trail Agriculture, to Elk Creek FS-AQ Life Cold 2, FS- Water Supply, FS-Primary Contact Recreation

COSPUS06a_0500 South Platte River - 28.9 MILES FS-Primary Unknown Unknown 1 North Fork to Contact Chatfield Recreation, FS-Water Supply, FS-AQ Life Cold 1, FS-Agriculture

COSPUS06a_0510 South Platte River - 4.7 MILES FS-Primary Unknown Unknown 2 outlet of Cheesman Contact rsvr to Fourmile Ck Recreation, FS- Agriculture, II- AQ Life Cold 1, FS-Water

Supply Integrated QualityWater Monitoring and Assessment Report, Appendix A

114 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COSPUS07_0500 South Platte River 95.6 MILES FS- Unknown Unknown 1 tributaries Agriculture, FS-AQ Life Cold 2, FS- Primary Contact Recreation

COSPUS07_0501 Willow Creek 7.8 MILES II-AQ Life Unknown Unknown 2 Cold 2, FS- Primary Contact Recreation, FS-Agriculture

COSPUS08_0500 Plum Creeks 52.9 MILES NA-AQ Life Unknown Unknown 3 Cold 1, NA- Water Supply, NA-Primary Contact Recreation, NA- Agriculture

COSPUS09_0500 Bear Creek 8.75 MILES FS- Unknown Unknown 2 Agriculture, II- AQ Life Cold

1, FS-Water | Supply, FS- Primary Contact Recreation

COSPUS10A_0500 Plum Creek 41.43 MILES FS- Unknown Unknown 1 Agriculture, FS-Primary Contact Recreation, FS-AQ Life Cold 1, FS- Water Supply

COSPUS10A_0501 West Plum Creek 17.41 MILES FS-Water Bioassessments Unknown 5 Supply, NS- AQ Life Cold 1, FS-Primary Contact Recreation, FS-Agriculture

COSPUS11A_0500 Plum Creek - east 54.90 MILES FS- Unknown Unknown 2 tributaries Agriculture, II- AQ Life Warm 2, FS-Primary Contact

Recreation Integrated QualityWater Monitoring and Assessment Report, Appendix A

115 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COSPUS11A_0501 Cook Creek 5.74 MILES FS-Primary Bioassessments Unknown 5 Contact Recreation, NS-AQ Life Warm 2, FS- Agriculture

COSPUS11B_0500 Plum Creek -west 40.7 MILES NA- Unknown Unknown 3 tributaries Agriculture, NA-AQ Life Warm 2, NA- Primary Contact Recreation

COSPUS11B_0510 Plum Creek -west 7.4 MILES FS-Primary Unknown Unknown 2 tributaries Spring and Contact Bear Creeks Recreation, II- AQ Life Warm 2, FS- Agriculture

COSPUS12_0500 Garber Creek 4.85 MILES FS- Unknown Unknown 1 Agriculture, FS-Primary Contact Recreation,

FS-AQ Life | Cold 1, FS- Water Supply

COSPUS12_0510 Jackson Creek 6.15 MILES II-AQ Life Unknown Unknown 2 Cold 1, FS- Primary Contact Recreation, FS- Agriculture, FS-Water Supply

COSPUS13_0500 Deer Creek 31 MILES FS- Unknown Unknown 1 Agriculture, FS-AQ Life Cold 1, FS- Water Supply, FS-Primary Contact Recreation

COSPUS14_00 Mainstem of South 5.5 MILES NS-Primary Arsenic, E.coli Unknown 5 Platte River Contact Recreation, FS- Agriculture, NS-AQ Life Warm 1, NS-

Water Supply Integrated QualityWater Monitoring and Assessment Report, Appendix A

116 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COSPUS14_0500 S. Platte River - 12.1 MILES NS-Primary Arsenic, E.coli Unknown 5 Bowles Ave. to Contact Cherry Creek Recreation, confluence NS-Water Supply, FS- Agriculture, NS-AQ Life Warm 1

COSPUS14_0600 S. Platte River - 3.63 MILES FS- Arsenic, E.coli Unknown 5 Cherry Creek confl to Agriculture, the Burlington ditch NS-AQ Life Warm 1, NS- Water Supply, NS-Primary Contact Recreation

COSPUS15_0600 S. Platte River - 3.7 MILES NS-AQ Life Ammonia, Contaminated 5 Burlington ditch to Warm 2, FS- Cadmium, Groundwater, Clear Creek Water Supply, Nitrate/Nitrite, Unknown NS-Primary E.coli Contact Recreation, FS-Agriculture

COSPUS15_0601 S. Platte River -Clear 23.2 MILES FS- Ammonia, Contaminated 5

Creek to Big Dry Agriculture, Cadmium, Groundwater, | Creek NS-AQ Life Nitrate/Nitrite, Unknown Warm 2, FS- E.coli Water Supply, NS-Primary Contact Recreation

COSPUS16a_00 Sand Creek 14.3 MILES NS-Primary Selenium, E.coli Unknown 5 Contact Recreation, NS-AQ Life Warm 2, FS- Agriculture

COSPUS16c_0500 South Platte River 93.9 MILES FS- Selenium Unknown 5 tributaries Agriculture, NS-AQ Life Warm 2, FS- Primary Contact Recreation

COSPUS16c_0501 Weir Gulch, 7 MILES II-Primary Selenium Unknown 5 Sanderson Gulch, Contact Humble Creek Recreation, FS- Agriculture, NS-AQ Life

Warm 2 Integrated QualityWater Monitoring and Assessment Report, Appendix A

117 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COSPUS16C_0502 Harvard, Harvard 13.9 MILES NS-AQ Life Selenium, E.coli Unknown 5 West and Lakewood Warm 2, FS- Gulch Agriculture, NS-Primary Contact Recreation

COSPUS16c_0503 Westerly Gulch 3.3 MILES FS- Selenium, E.coli Unknown 5 Agriculture, NS-AQ Life Warm 2, NS- Primary Contact Recreation

COSPUS16c_0504 Dry Gulch 4.8 MILES NS-Primary Selenium, E.coli Unknown 5 Contact Recreation, FS- Agriculture, NS-AQ Life Warm 2

COSPUS16c_0600 So. Platte River 176.1 MILES FS-Primary Selenium Unknown 5 tributaries below 19th Contact Street in Denver Recreation, FS-

Agriculture, | NS-AQ Life Warm 2

COSPUS16c_0601 East and West Toll 23.7 MILES NA- Selenium Unknown 5 Gate Creek Agriculture, NS-AQ Life Warm 2, NA- Primary Contact Recreation

COSPUS16d_0600 Unnamed tributary to 18.3 MILES NA- Unknown Unknown 3 Second Creek Agriculture, NA-AQ Life Warm 2, NA- Primary Contact Recreation

COSPUS16e_0600 Unnamed tributary to 21.7 MILES NA-Primary Unknown Unknown 3 Third Creek Contact Recreation, NA- Agriculture, NA-AQ Life Warm 2

COSPUS16f_0600 Unnamed tributary to 7.71 MILES NA-Primary Unknown Unknown 3 Barr Lake Contact Recreation, NA-AQ Life Warm 2, NA-

Agriculture Integrated QualityWater Monitoring and Assessment Report, Appendix A

118 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COSPUS16g_0500 Unnamed tributary to 5.98 MILES NA- Unknown Unknown 3 Marcy Gulch Agriculture, NA-AQ Life Warm 2, NA- Primary Contact Recreation

COUCBL01_6200 Blue River 10.7 MILES FS-Primary Unknown Unknown 1 Contact Recreation, FS- Agriculture, FS-AQ Life Cold 1, FS- Water Supply

COUCBL02A_6200 Blue River -French 2.1 MILES FS-Primary Cadmium, Unknown 5 Gulch to Summit Contact Zinc, County road 3 Recreation, Manganese NS-Water Supply, FS- Agriculture, NS-AQ Life Cold 1

COUCBL02b_00 Blue River 2 MILES NA- Zinc Unknown 4B

Agriculture, | NS-AQ Life Cold 1, FS- Water Supply, NA-Primary Contact Recreation

COUCBL04a_6200 Blue River tribs 119.7 MILES FS-Primary Unknown Unknown 1 Contact Recreation, FS-Water Supply, FS- Agriculture, FS-AQ Life Cold 1

COUCBL04a_6210 Gold Run Gulch 3.4 MILES II-AQ Life Unknown Unknown 2 Cold 1, FS- Agriculture, FS-Water Supply, FS- Primary Contact Recreation

COUCBL04b_6200 North Fork of Swan 1.3 MILES NA- Unknown Unknown 3 River Agriculture, NA-AQ Life Cold 1, NA- Water Supply, NA-Primary Contact

Recreation Integrated QualityWater Monitoring and Assessment Report, Appendix A

119 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COUCBL05_6200 Soda Creek 4.9 MILES FS- Unknown Unknown 1 Agriculture, FS-Primary Contact Recreation, FS-AQ Life Cold 1, FS- Water Supply

COUCBL06a_6200 Snake River -source 15 MILES FS- Unknown Unknown 1 to Peru Creek Agriculture, FS-AQ Life Cold 1, FS- Water Supply, FS-Primary Contact Recreation

COUCBL06a_6201 Snake River -below 8.41 MILES NS- Copper, pH, Mining 4A Peru Creek to Dillon Agriculture, Lead, Reservoir NS-AQ Life Cadmium, Zinc Cold 1, FS- Water Supply, FS-Primary Contact Recreation

COUCBL06b_6200 Camp Creek 1.3 MILES FS- Unknown Unknown 1 | Agriculture, FS-Primary Contact Recreation, FS-AQ Life Cold 1, FS- Water Supply

COUCBL07_6200 Peru Creek 5.94 MILES NS-AQ Life Zinc, Mining 4A Cold 1, FS- Manganese, Secondary Lead, Copper, Contact Cadmium, pH Recreation

COUCBL08_6200 Keystone Creek, 25.6 MILES FS- Unknown Unknown 1 Chicuahua Creek Agriculture, FS-AQ Life Cold 1, FS- Water Supply, FS-Primary Contact Recreation

COUCBL09_6200 Deer Creek and Tribs 2.7 MILES FS-Water Unknown Unknown 1 Supply, FS-AQ Life Cold 1, FS- Agriculture, FS-Primary Contact

Recreation Integrated QualityWater Monitoring and Assessment Report, Appendix A

120 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COUCBL10_6200 French Gulch 4.6 MILES FS- Unknown Unknown 1 Agriculture, FS-AQ Life Cold 1, FS- Water Supply, FS-Primary Contact Recreation

COUCBL11_6200 French Gulch -below 3.1 MILES FS- Unknown Unknown 1 Lincoln to Blue River Agriculture, FS-AQ Life Cold 1, FS- Secondary Contact Recreation

COUCBL12_6200 Illinois Gulch 3.88 MILES NS-AQ Life Cadmium, Zinc Mining 4A Cold 2, FS- Water Supply, FS- Agriculture, FS-Primary Contact Recreation

COUCBL12_6201 Fredonia Gulch 1.6 MILES FS- Unknown Unknown 1

Agriculture, | FS-AQ Life Cold 2, FS- Water Supply, FS-Primary Contact Recreation

COUCBL13_6200 Tenmile Creek 8.4 MILES FS-Primary Unknown Unknown 1 Contact Recreation, FS- Agriculture, FS-AQ Life Cold 1

COUCBL14_6200 Tenmile Creek 43.2 MILES FS-Primary Unknown Unknown 1 Contact Recreation, FS-Water Supply, FS-AQ Life Cold 1, FS-Agriculture

COUCBL15_6200 Clinton Creek 4.8 MILES FS- Unknown Unknown 1 Agriculture, FS-AQ Life Cold 1, FS- Water Supply, FS-Primary Contact

Recreation Integrated QualityWater Monitoring and Assessment Report, Appendix A

121 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COUCBL16_6200 Blue River tributaries 157.2 MILES FS-Primary Unknown Unknown 1 Contact Recreation, FS- Agriculture, FS-AQ Life Cold 1, FS- Water Supply

COUCBL17_6200 Blue River -below 29.74 MILES FS-Primary Unknown Unknown 1 Dillon Res to Contact confluence w/ Recreation, Colorado River FS-Water Supply, FS- Agriculture, FS-AQ Life Cold 1

COUCBL17_6201 Blue River from 8.86 MILES FS-Water Unknown Unknown 2 outlet of Dillion Rsvr Supply, FS- to N Rock Creek Primary confl Contact Recreation, II- AQ Life Cold 1, FS- Agriculture

COUCBL18_6200 Straight Creek 9.6 MILES FS- Sedimentation Road Runoff 4A | Agriculture, NS-AQ Life Cold 1, FS- Water Supply, FS-Primary Contact Recreation

COUCBL18_6201 Blue River -tribs from 186.4 MILES FS-AQ Life Unknown Unknown 1 Dillon Res. to Green Cold 1, FS- Mtn. Res. Water Supply, FS- Agriculture, FS-Primary Contact Recreation

COUCBL19_6200 Blue River tributaries 93.4 MILES FS- Unknown Unknown 1 Agriculture, FS-AQ Life Cold 1, FS- Water Supply, FS-Secondary Contact Recreation

COUCBL20_6200 Elliot Creek and Tribs 11.7 MILES FS-Secondary Unknown Unknown 1 Contact Recreation, FS- Agriculture, FS-AQ Life Cold 1, FS-

Water Supply Integrated QualityWater Monitoring and Assessment Report, Appendix A

122 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COUCBL20_6201 Spruce Creek 18.5 MILES FS-Secondary Unknown Unknown 2 Contact Recreation, FS-Water Supply, FS- Agriculture, II- AQ Life Cold 1

COUCEA01_6300 Eagle River -tribs 142.7 MILES FS- Unknown Unknown 1 w/in Gore Range- Agriculture, Eagles Nest FS-AQ Life Cold 1, FS- Water Supply, FS-Primary Contact Recreation

COUCEA02_6300 Eagle River -source to 17 MILES FS-Primary Unknown Unknown 1 bridge @ Belden Contact Recreation, FS- Agriculture, FS-AQ Life Cold 1, FS- Water Supply

COUCEA03_6300 Eagle River -all tribs 82.9 MILES FS-Primary Unknown Unknown 1 | source to bridge @ Contact Belden Recreation, FS-Water Supply, FS- Agriculture, FS-AQ Life Cold 1

COUCEA04_6300 Homestake Creek - 12.6 MILES FS- Unknown Unknown 1 East Fork to Eagle Agriculture, River FS-AQ Life Cold 1, FS- Water Supply, FS-Primary Contact Recreation

COUCEA05a_6300 Eagle River, bridge 2.1 MILES FS-Water Copper, Zinc Unknown 4A @ Belden to HWY Supply, NS- 24 bridge AQ Life Cold 1, FS- Agriculture, FS-Primary Contact Recreation

COUCEA05b_6300 Eagle River, HWY 24 2.6 MILES FS- Zinc Unknown 4A bridge to Martin Agriculture, Creek NS-AQ Life Cold 1, FS- Water Supply, FS-Primary Contact

Integrated QualityWater Monitoring and Assessment Report, Appendix A Recreation

123 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COUCEA05c_6300 Eagle River from 2.4 MILES FS-Primary Zinc, Cadmium Unknown 5 Martin Ck to Gore Contact Ck Recreation, FS- Agriculture, NS-AQ Life Cold 1, FS- Water Supply

COUCEA06_6300 All tribs to Eagle 166.47 MILES FS-Primary Unknown Unknown 1 River from bridge @ Contact Belden to Lake Creek Recreation, FS-Water Supply, FS- Agriculture, FS-AQ Life Cold 1

COUCEA06_6301 Black Gore Creek 6.7 MILES NA- Sedimentation Road Runoff 5 Agriculture, NS-AQ Life Cold 1, NA- Water Supply, NA-Primary Contact Recreation

COUCEA06_6302 Mainstem of Lake 2.00 MILES NS-AQ Life Bioassessments Unknown 5 | Creek blw confl with Cold 1, FS- East and West Lake Agriculture, Ck FS-Water Supply, FS- Primary Contact Recreation

COUCEA06_6303 Beaver Creek from 3.48 MILES II-AQ Life Unknown Unknown 2 confl Wayne Creek to Cold 1, FS- mouth Agriculture, FS-Water Supply, FS- Primary Contact Recreation

COUCEA06_6314 Red Sandstone Ck 3.06 MILES FS-Primary Unknown Unknown 2 from USFS boundary Contact to I70 Frontage Rd Recreation, FS-Water Supply, FS- Agriculture, II- AQ Life Cold 1

COUCEA06_6324 Red Sandstone Ck 0.15 MILES FS-Primary Bioassessments Unknown 5 from I70 Frontage Rd Contact to Gore Ck Recreation, FS-Water Supply, FS- Agriculture, NS-AQ Life

Cold 1 Integrated QualityWater Monitoring and Assessment Report, Appendix A

124 Appendix A: Use Attainment for Rivers and Streams

Legend: FS-Fully Supporting, NS-Not Supporting, NA-Not Assessed, II-Insufficient Information

ID 305(B) Assessment Unit Total Size Unit Designated Causes Sources IR Name Uses Cate gory

COUCEA07a_6300 Cross Creek - source 1.3 MILES FS-Water Unknown Unknown 1 to Minturn Middle Supply, FS- School Primary Contact Recreation, FS-AQ Life Cold 1, FS- Agriculture

COUCEA07b_6300 Cross Creek -source 0.5 MILES NS-AQ Life Zinc, Copper Mining 4A to Eagle River Cold 1, FS- confluence Water Supply, FS-Primary Contact Recreation, FS-Agriculture

COUCEA08_6300 Gore Creek -Black 10.84 MILES NS-AQ Life Bioassessments Unknown 5 Gore Creek to Eagle Cold 1, FS- River Water Supply, FS-Primary Contact Recreation, FS-Agriculture

COUCEA09a_6300 Eagle River - Gore 6.40 MILES FS-Primary Unknown Unknown 2 Creek to Rube Creek Contact

Recreation, | FS-Water Supply, FS- Agriculture, II- AQ Life Cold 1

* There are instances where a segment designated as a Category 5 may identify additional parameters in this table not included on the 2010 303(d) List. This is largely due to the fact that a TMDL has been written and approved but the segment is still not attaining water quality standards. The Assessment Database continues to track these parameters until the segment attains standards for these particular pollutants.

This may also happen on segments where there are parameters included on the M&E List for this same

segment. Integrated QualityWater Monitoring and Assessment Report, Appendix A

125

Appendix B is the entire use support APPENDIX B table for lakes and

reservoirs.

Waterbody ID, name, size, uses,

causes, sources, and

IR category are

included.

Secchi Disk Sampling

Appendix B: Use Attainment Table, Lakes and Reservoirs

Legend: FS-Fully Supporting, NS-Not Supporting, N/A-Not Assessed, II-Insufficient Information

ID305(B) Assessment Total Size Unit Designated Uses Causes Sources IR Unit Name Category

COARCI01L_4800 Lakes and 23.5 ACRES NA-Agriculture, NA- Unknown Unknown 3 reservoirs trib to AQ Life Warm 2, NA- Mainstem Secondary Contact Cimarron River Recreation

COARCI01L_4900 Lakes and 87.1 ACRES NA-Secondary Contact Unknown Unknown 3 Reservoirs trib Recreation, NA-AQ to Mainstem of Life Warm 2, NA- Cimarron River Agriculture

COARCI01L_5000 Lakes and 30.6 ACRES NA-Secondary Contact Unknown Unknown 3 Reservoirs trib Recreation, NA-AQ to Mainstem of Life Warm 2, NA- Cimarron River Agriculture

COARCI02L_4800 Lakes and 16.1 ACRES NA-Agriculture, NA- Unknown Unknown 3 reservoirs trib to AQ Life Warm 2, NA- Mainstem of N Secondary Contact Carrizo Ck Recreation

COARFO01aL_3500 Lakes trib to 558.1 ACRES NA-Agriculture, NA- Unknown Unknown 3 Fountain Creek AQ Life Cold 1, NA- Water Supply, NA- Secondary Contact

Recreation | COARFO03aL_3500 Lakes trib to 631 ACRES NA-Agriculture, NA- Unknown Unknown 3 Fountain Creek Water Supply, NA- Primary Contact Recreation, NA-AQ Life Cold 1

COARFO04L_3500 Lakes trib to 998 ACRES NA-AQ Life Warm 2, Unknown Unknown 3 Fountain Creek NA-Agriculture, NA- Primary Contact Recreation

COARFO05L_3500 Lakes and 6.4 ACRES NA-Secondary Contact Unknown Unknown 3 reservoirs trib to Recreation, NA-AQ Fountain Ck Life Warm 1, NA- Agriculture

COARFO07a_3500 Willow Springs 5.49 ACRES NA-Agriculture, NS- Ammonia Groundwater 5 Ponds #1 & #2 AQ Life Warm 2, NA- Contamination Water Supply, NA- Primary Contact Recreation

COARFO07a_3501 Colorado Springs 8.64 ACRES NA-Agriculture, FS- Unknown Unknown 2 urban pond AQ Life Warm 2, NA- Water Supply, NA- Primary Contact Recreation

COARFO07b_3500 Colorado Springs 165.9 ACRES NA-AQ Life Warm 2, Unknown Unknown 3 Urban Lakes NA-Primary Contact Recreation, NA-

Agriculture Integrated QualityWater Monitoring and Assessment Report, AppendixB

1 Appendix B: Use Attainment Table, Lakes and Reservoirs

Legend: FS-Fully Supporting, NS-Not Supporting, N/A-Not Assessed, II-Insufficient Information

ID305(B) Assessment Total Size Unit Designated Uses Causes Sources IR Unit Name Category

COARLA01aL_4700 Lakes trib to 1 ACRES NA-Agriculture, NA- Unknown Unknown 3 White Woman Secondary Contact Creek Recreation, NA-AQ Life Warm 2

COARLA02aL_3700 Unnamed lake 3,014.20 ACRES NA-AQ Life Warm 2, Unknown Unknown 3 NA-Agriculture, NA- Secondary Contact Recreation

COARLA02aL_3800 Lakes and 1,976.70 ACRES NA-Secondary Contact Unknown Unknown 3 reservoirs trib to Recreation, NA-AQ Arkansas River Life Warm 2, NA- Agriculture

COARLA02aL_3900 Lakes and 580.2 ACRES NA-AQ Life Warm 2, Unknown Unknown 3 reservoirs trib to NA-Agriculture, NA- Arkansas River Secondary Contact Recreation

COARLA02aL_4000 Lakes and 1,450.10 ACRES NA-Agriculture, NA- Unknown Unknown 3 reservoirs trib to AQ Life Warm 2, NA- Arkansas River Secondary Contact

Recreation

|

COARLA02aL_4100 Lakes trib to the 4,627.80 ACRES NA-AQ Life Warm 2, Unknown Unknown 3 Arkansas River NA-Secondary Contact Recreation, NA- Agriculture

COARLA02aL_4200 Lakes and 1,593.20 ACRES NA-AQ Life Warm 2, Unknown Unknown 3 reservoirs trib to NA-Secondary Contact Arkansas River Recreation, NA- Agriculture

COARLA02aL_4300 Lakes trib to Big 2,048 ACRES NA-Secondary Contact Unknown Unknown 3 Sandy Creek Recreation, NA- Agriculture, NA-AQ Life Warm 2

COARLA02aL_4400 Lakes trib to 1,134.30 ACRES NA-Secondary Contact Unknown Unknown 3 Rush Creek Recreation, NA- Agriculture, NA-AQ Life Warm 2

COARLA02aL_4500 Lakes and 39.9 ACRES NA-Secondary Contact Unknown Unknown 3 reservoirs trib to Recreation, NA-AQ Arkansas Rver Life Warm 2, NA- Agriculture

COARLA02aL_4700 Lakes and 585.9 ACRES NA-Agriculture, NA- Unknown Unknown 3 reservoirs trib to AQ Life Warm 2, NA- Arkansas River Secondary Contact Recreation

COARLA02aL_5100 Lakes and 39.7 ACRES NA-Secondary Contact Unknown Unknown 3 reservoirs trib to Recreation, NA- Arkansas River Agriculture, NA-AQ

Life Warm 2 Integrated QualityWater Monitoring and Assessment Report, AppendixB

2 Appendix B: Use Attainment Table, Lakes and Reservoirs

Legend: FS-Fully Supporting, NS-Not Supporting, N/A-Not Assessed, II-Insufficient Information

ID305(B) Assessment Total Size Unit Designated Uses Causes Sources IR Unit Name Category

COARLA02aL_5200 Unnamed Lake 236.1 ACRES NA-Secondary Contact Unknown Unknown 3 Recreation, NA- Agriculture, NA-AQ Life Warm 2

COARLA03aL_3900 Lakes and 5.7 ACRES NA-Agriculture, NA- Unknown Unknown 3 reservoirs trib to AQ Life Cold 1, NA- Apishapa River Water Supply, NA- Primary Contact Recreation

COARLA05AL_4200 Unnamed lake 185.6 ACRES NA-Agriculture, NA- Unknown Unknown 3 Primary Contact Recreation, NA-AQ Life Cold 1, NA-Water Supply

COARLA05BL_4200 Trinidad 1,343.10 ACRES FS-Agriculture, NS-AQ Temperature, Unknown 5 Reservoir Life Cold 1, FS- Water DO, Mercury Supply, FS- Primary in Fish Tissue Contact Recreation

COARLA05BL_4201 Long Canyon 58 ACRES NA-Agriculture, NA- Unknown Unknown 3 Reservoir AQ Life Cold 1, NA-

Water Supply, NA-

| Primary Contact Recreation

COARLA05BL_4202 Lake Dorothey 11.77 ACRES NA-Primary Contact Unknown Unknown 3 Recreation, NA-Water Supply, NA- Agriculture, NA-AQ Life Cold 1

COARLA06L_4200 Lakes and 24.7 ACRES NA-AQ Life Cold 2, Unknown Unknown 3 reservoirs trib to NA-Primary Contact Purgatoire River Recreation, NA- Agriculture

COARLA08L_5300 Leandro Lake 9.7 ACRES NA-Primary Contact Unknown Unknown 3 Recreation, NA- Agriculture, NA-AQ Life Cold 1, NA-Water Supply

COARLA08L_5301 Lake Maloya 6.03 ACRES NA-AQ Life Cold 1, Unknown Unknown 3 NA-Water Supply, NA- Agriculture, NA- Primary Contact Recreation

COARLA10_4000 Holbrook 536.9 ACRES FS- Primary Contact Unknown Unknown 1 Reservoir Recreation, FS- Agriculture, FS- AQ Life Warm 1, FS- Water

Supply Integrated QualityWater Monitoring and Assessment Report, AppendixB

3 Appendix B: Use Attainment Table, Lakes and Reservoirs

Legend: FS-Fully Supporting, NS-Not Supporting, N/A-Not Assessed, II-Insufficient Information

ID305(B) Assessment Total Size Unit Designated Uses Causes Sources IR Unit Name Category

COARLA10_4101 Neenoshe, 4,829.40 ACRES FS- Primary Contact Unknown Unknown 1 Neeskah & Recreation, FS- Water Neespah Supply, FS-Agriculture, Reservoirs FS- AQ Life Warm 1

COARLA10_4102 Nee Gronda 750.32 ACRES FS-Agriculture, NS-AQ Selenium Unknown 5 Reservoir Life Warm 1, FS- Water Supply, FS- Primary Contact Recreation

COARLA10_4103 Adobe Creek 4,784 ACRES NS-AQ Life Warm 1, Selenium Unknown 5 Reservoir FS- Water Supply, FS- Primary Contact Recreation, FS- Agriculture

COARLA10_4500 Two Buttes 734.3 ACRES NA-Agriculture, NA- Unknown Unknown 3 Reservoir and Primary Contact Ponds Recreation, NA-AQ Life Warm 1, NA- Water Supply

COARLA10_5100 Burchfield 22.99 ACRES NA-Agriculture, NA- Unknown Unknown 3 |

Reservoir AQ Life Warm 1, NA- Water Supply, NA- Primary Contact Recreation

COARLA11_4100 John Martin 16,579.30 ACRES FS- Primary Contact Selenium Unknown 5 Reservoir Recreation, FS- Agriculture, NS-AQ Life Warm 1, FS- Water Supply

COARLA12_3701 Lake Meredith 5,533.50 ACRES FS- Primary Contact Selenium Unknown 5 Recreation, NS-AQ Life Warm 1, FS-Agriculture

COARLA12_3702 Lake Henry 1,178.19 ACRES FS-Agriculture, NS-AQ Selenium Unknown 5 Life Warm 1, FS- Primary Contact Recreation

COARLA13_4000 Horse Creek 2,196.60 ACRES FS-Agriculture, FS- AQ Unknown Unknown 2 Reservoir Life Warm 1, NA- Primary Contact Recreation

COARLA13_4100 Thurston Res, 223.3 ACRES NA-Primary Contact Unknown Unknown 2 Karvel Lake, Las Recreation, FS- Animas Kid's Agriculture, FS- AQ Pond Life Warm 1

COARLA13_4400 Hugo Ponds, 6.36 ACRES NA-Primary Contact Unknown Unknown 2 Kinney Lake Recreation, FS- Agriculture, FS- AQ

Life Warm 1 Integrated QualityWater Monitoring and Assessment Report, AppendixB

4 Appendix B: Use Attainment Table, Lakes and Reservoirs

Legend: FS-Fully Supporting, NS-Not Supporting, N/A-Not Assessed, II-Insufficient Information

ID305(B) Assessment Total Size Unit Designated Uses Causes Sources IR Unit Name Category

COARMA01_3400 Pueblo Reservoir 1,255.20 ACRES FS-Agriculture, FS- AQ Unknown Unknown 1 Life Cold 1, FS- Water Supply, FS- Primary Contact Recreation

COARMA03L_3400 Lakes and 66.5 ACRES NA-Agriculture, NA- Unknown Unknown 3 reservoirs trib to AQ Life Warm 1, NA- Arkansas River Water Supply, NA- Primary Contact Recreation

COARMA04cL_00 Lakes and 418.6 ACRES NA-Agriculture, NA- Unknown Unknown 3 reservoirs trib to AQ Life Warm 1, NA- Mainstem of Primary Contact Chico Ck Recreation

COARMA04dL_3400 Lakes and 1,358.60 ACRES NA-Agriculture, NA- Unknown Unknown 3 reservoirs trib to AQ Life Warm 2, NA- Arkansas River Primary Contact and Publeo Rsvr Recreation

COARMA05L_3400 Lakes and 32 ACRES NA-Primary Contact Unknown Unknown 3 reservoirs trib to Recreation, NA-Water Saint Charles Supply, NA-AQ Life

River Cold 1, NA-Agriculture | COARMA08_3400 Beckwith 52.36 ACRES NA-Agriculture, NA- Unknown Unknown 3 Reservoir Primary Contact Recreation, NA-AQ Life Cold 1, NA-Water Supply

COARMA11L_3800 Lakes and 11.4 ACRES NA-Water Supply, NA- Unknown Unknown 3 reservoirs trib to AQ Life Cold 1, NA- Mainstem of Agriculture, NA- Herfano River Primary Contact Recreation

COARMA13L_3800 Lakes and 124.7 ACRES NA-Water Supply, NA- Unknown Unknown 3 reservoirs trib to Agriculture, NA-AQ Mainstem of Life Cold 1, NA- Cucharas River Primary Contact Recreation

COARMA14L_3800 Lakes and 253.2 ACRES NA-Agriculture, NA- Unknown Unknown 3 Reservoirs trib AQ Life Warm 1, NA- to Mainstem of Primary Contact Cucharas river Recreation

COARMA16_3800 Horseshoe Lake 157.1 ACRES FS- Primary Contact Mercury in Unknown 5 Recreation, FS- Water Fish Tissue Supply, FS-Agriculture, NS-AQ Life Cold 1

COARMA16_3801 Huajatolla, 261.9 ACRES NA-Agriculture, NA- Unknown Unknown 3 Diagre, AQ Life Cold 1, NA- Walsenburg Water Supply, NA- Lower Town, Primary Contact

Martin Recreation Integrated QualityWater Monitoring and Assessment Report, AppendixB

5 Appendix B: Use Attainment Table, Lakes and Reservoirs

Legend: FS-Fully Supporting, NS-Not Supporting, N/A-Not Assessed, II-Insufficient Information

ID305(B) Assessment Total Size Unit Designated Uses Causes Sources IR Unit Name Category

Lake/rsvr

COARUA01AL_3300 Lakes and 70.2 ACRES NA-Agriculture, NA- Unknown Unknown 3 reservoirs trib to AQ Life Cold 1, NA- Upper Arkansas Water Supply, NA- River Primary Contact Recreation

COARUA05L_3300 Clear Creek 1,235.20 ACRES FS- Water Supply, FS- Unknown Unknown 1 Reservoir AQ Life Cold 1, FS- Agriculture, FS- Secondary Contact Recreation

COARUA05L_3301 Turquoise Lake 1,734 ACRES FS- Secondary Contact Unknown Unknown 1 Recreation, FS- Water Supply, FS- AQ Life Cold 1, FS-Agriculture

COARUA10L_3300 Twin Lake West 2,037.70 ACRES FS- Primary Contact Copper Unknown 5 Recreation, FS- Water Supply, FS-Agriculture,

NS-AQ Life Cold 1 | COARUA10L_3301 Forebay 264.7 ACRES FS-Agriculture, FS- AQ Unknown Unknown 1 Life Cold 1, FS- Water Supply, FS- Primary Contact Recreation

COARUA12BL_3300 Lakes and 70.4 ACRES NA-Agriculture, NA- Unknown Unknown 3 reservoirs trib to Primary Contact Mainstem of Recreation, NA-AQ Cottonwood Ck Life Cold 1, NA-Water Supply

COARUA13L_3300 Lakes and 190.8 ACRES NA-Water Supply, NA- Unknown Unknown 3 reservoirs trib to AQ Life Cold 1, NA- Arkansas River Agriculture, NA- Primary Contact Recreation

COARUA14bL_3400 Teller Reservoir 157 ACRES II- AQ Life Warm 2, Unknown Unknown 2 FS-Agriculture, FS- Secondary Contact Recreation

COARUA15L_3300 DeWeese 334.3 ACRES FS- Primary Contact DO Unknown 5 Reservoir Recreation, FS- Water Supply, FS-Agriculture, NS-AQ Life Cold 1

COARUA15L_3301 Unnamed lakes 107.7 ACRES FS- Water Supply, FS- Unknown Unknown 1 AQ Life Cold 1, FS- Agriculture, FS- Primary Contact

Recreation Integrated QualityWater Monitoring and Assessment Report, AppendixB

6 Appendix B: Use Attainment Table, Lakes and Reservoirs

Legend: FS-Fully Supporting, NS-Not Supporting, N/A-Not Assessed, II-Insufficient Information

ID305(B) Assessment Total Size Unit Designated Uses Causes Sources IR Unit Name Category

COARUA18L_3300 Lakes and 12.7 ACRES NA-AQ Life Cold 1, Unknown Unknown 3 reservoirs trib to NA-Water Supply, NA- Mainstem of Agriculture, NA- Currant Crk Primary Contact Recreation

COARUA19L_3400 Lakes and 144.8 ACRES NA-AQ Life Cold 1, Unknown Unknown 3 reservoirs trib to NA-Water Supply, NA- Mainstem of Agriculture, NA- Fourmile Crk Primary Contact Recreation

COARUA24L_3400 Lakes and 710.7 ACRES NA-AQ Life Cold 1, Unknown Unknown 3 reservoirs trib to NA-Water Supply, NA- East and West Primary Contact Beaver Crks Recreation, NA- Agriculture

COARUA27L_3400 Brush Hollow 93.7 ACRES FS- Water Supply, FS- Mercury in Unknown 5 Reservoir Agriculture, FS- Fish Tissue, Primary Contact DO Recreation, NS-AQ Life Cold 1

COGULD03aL_7400 Lakes and 452.8 ACRES NA-Primary Contact Unknown Unknown 3

| reservoirs trib to Recreation, NA-Water Dolores River Supply, NA-AQ Life Cold 1, NA-Agriculture

COGULD03aL_7600 Lakes and 113.7 ACRES NA-Agriculture, NA- Unknown Unknown 3 reservoirs trib to Primary Contact Dolores River Recreation, NA-AQ Life Cold 1, NA-Water Supply

COGULD05L_7600 Lakes and 14.8 ACRES NA-Agriculture, NA- Unknown Unknown 3 reservoirs trib to Water Supply, NA- West Creek Primary Contact Recreation, NA-AQ Life Cold 1

COGULG03L_7100 Gunnison river 5,003.92 ACRES FS-Agriculture, FS- AQ Unknown Unknown 1 lake tribs Life Cold 1, FS- Water Supply, FS- Primary Contact Recreation

COGULG03L_7120 Island Lake 240.93 ACRES FS-Agriculture, FS- AQ Unknown Unknown 1 Life Cold 1, FS- Water Supply, FS- Primary Contact Recreation

COGULG03L_7220 Eggleston 212 ACRES FS-Agriculture, NS-AQ Iron Unknown 5 Reservoir Life Cold 1, FS- Water Supply, II- Primary Contact Recreation

COGULG04b_7100 Juniata Reservoir 96.6 ACRES FS-Agriculture, FS- AQ Unknown Unknown 1 Life Warm 2, FS- Water

Supply, FS- Primary Integrated QualityWater Monitoring and Assessment Report, AppendixB

7 Appendix B: Use Attainment Table, Lakes and Reservoirs

Legend: FS-Fully Supporting, NS-Not Supporting, N/A-Not Assessed, II-Insufficient Information

ID305(B) Assessment Total Size Unit Designated Uses Causes Sources IR Unit Name Category

Contact Recreation

COGULG04b_7101 Lakes and 367.87 ACRES NA-Agriculture, NA- Unknown Unknown 3 Reservoirs AQ Life Warm 2, NA- tributary to Water Supply, NA- Gunnison River Primary Contact Recreation

COGULG04b_7102 Jatz Bottomlands 23.5 ACRES FS-Agriculture, FS- Unknown Unknown 2 Primary Contact Recreation, II- AQ Life Warm 2, FS- Water Supply

COGULG09_7100 Fruitgrowers 101.9 ACRES FS- Primary Contact DO Unknown 5 Reservoir Recreation, FS- Agriculture, NS-AQ Life Warm 2

COGULG12L_6800 Lakes trib to the 327.5 ACRES NA-AQ Life Warm 2, Unknown Unknown 3 Smith Fork NA-Agriculture, NA- Primary Contact

Recreation

|

COGULG13_6800 Crawford 364.9 ACRES FS-Agriculture, NS-AQ DO Unknown 5 Reservoir Life Cold 1, FS- Primary Contact Recreation

COGUNF01L_7000 Lakes trib to 26.3 ACRES NA-Agriculture, NA- Unknown Unknown 3 Gunnison River Primary Contact Recreation, NA-AQ Life Cold 1, NA-Water Supply

COGUNF04L_7000 Island Reservoir 840.4 ACRES FS- Water Supply, II- Unknown Unknown 2 AQ Life Cold 1, FS- Agriculture, FS- Primary Contact Recreation

COGUNF05L_7000 Lakes trib to 126.3 ACRES NA-Agriculture, NA- Unknown Unknown 3 North Fork of AQ Life Cold 1, NA- the Gunnison Water Supply, NA- Primary Contact Recreation

COGUNF07_7000 Paonia Reservoir 317.6 ACRES FS- Primary Contact Unknown Unknown 2 Recreation, II- AQ Life Cold 1, FS- Water Supply, FS-Agriculture

COGUSM02L_7500 Lakes and 404.2 ACRES NA-Primary Contact Unknown Unknown 3 reservoirs trib to Recreation, NA-Water San Miguel River Supply, NA-AQ Life

Cold 1, NA-Agriculture Integrated QualityWater Monitoring and Assessment Report, AppendixB

8 Appendix B: Use Attainment Table, Lakes and Reservoirs

Legend: FS-Fully Supporting, NS-Not Supporting, N/A-Not Assessed, II-Insufficient Information

ID305(B) Assessment Total Size Unit Designated Uses Causes Sources IR Unit Name Category

COGUSM09L_7500 Lakes and 70.5 ACRES NA-Water Supply, NA- Unknown Unknown 3 reservoirs trib to AQ Life Cold 1, NA- San Miguel River Agriculture, NA- Primary Contact Recreation

COGUSM10L_7500 Lakes and 315.6 ACRES NA-Water Supply, NA- Unknown Unknown 3 reservoirs trib to AQ Life Cold 1, NA- Naturita Creek Agriculture, NA- Primary Contact Recreation

COGUSM11L_7500 Miramonte 378.6 ACRES FS-Agriculture, NS-AQ DO, Unknown 5 Reservoir Life Cold 1, FS- Temperature Primary Contact Recreation

COGUSM11L_7501 Lakes and 14.8 ACRES NA-Primary Contact Unknown Unknown 3 reservoirs trib to Recreation, NA- W Fork Naturita Agriculture, NA-AQ Creek Life Cold 1

COGUSM12L_7500 Lakes and 350.8 ACRES NA-Agriculture, NA- Unknown Unknown 3

reservoirs trib to AQ Life Cold 2, NA-

San Miguel River Water Supply, NA- | Primary Contact Recreation

COGUUG01L_6800 Lakes and 47.7 ACRES NA-AQ Life Cold 1, Unknown Unknown 3 reservoirs trib to NA-Water Supply, NA- Gunnison River Primary Contact Recreation, NA- Agriculture

COGUUG04L_6700 Taylor Park 2,018.40 ACRES FS- Water Supply, FS- Unknown Unknown 1 Reservoir Primary Contact Recreation, FS- AQ Life Cold 1, FS-Agriculture

COGUUG04L_6701 Lakes and 535.80 ACRES NA-AQ Life Cold 1, Unknown Unknown 3 reservoirs trib to NA-Water Supply, NA- Taylor River Primary Contact Recreation, NA- Agriculture

COGUUG05L_6700 Lakes and 22.4 ACRES NA-Water Supply, NA- Unknown Unknown 3 reservoirs trib to AQ Life Cold 1, NA- East River Agriculture, NA- Primary Contact Recreation

COGUUG09L_6700 Lakes and 105.5 ACRES NA-Primary Contact Unknown Unknown 3 reservoirs trib to Recreation, NA- Slate River Agriculture, NA-Water Supply, NA-AQ Life Cold 1

COGUUG15L_6800 Lakes and 5 ACRES NA-Water Supply, NA- Unknown Unknown 3

Integrated QualityWater Monitoring and Assessment Report, AppendixB reservoirs trib to AQ Life Cold 2, NA-

9 Appendix B: Use Attainment Table, Lakes and Reservoirs

Legend: FS-Fully Supporting, NS-Not Supporting, N/A-Not Assessed, II-Insufficient Information

ID305(B) Assessment Total Size Unit Designated Uses Causes Sources IR Unit Name Category

Gunnison River Agriculture, NA- Secondary Contact Recreation

COGUUG16L_6800 Lakes and 0.9 ACRES NA-Water Supply, NA- Unknown Unknown 3 reservoirs trib to Agriculture, NA-AQ Ohio Creek Life Cold 1, NA- Primary Contact Recreation

COGUUG17L_6800 Lakes and 32.9 ACRES NA-Water Supply, NA- Unknown Unknown 3 reservoirs trib to Primary Contact Antelope Creek Recreation, NA- Agriculture, NA-AQ Life Cold 2

COGUUG19L_6900 Lakes and 123 ACRES NA-Primary Contact Unknown Unknown 3 reservoirs trib to Recreation, NA-AQ Tomichi Creek Life Cold 1, NA-Water Supply, NA-Agriculture

COGUUG23L_6900 Lakes and 160.9 ACRES NA-Agriculture, NA- Unknown Unknown 3 reservoirs trib to AQ Life Cold 1, NA-

Cochetopa Water Supply, NA- |

Creek Primary Contact Recreation

COGUUG25_6800 Blue Mesa, 10,020.60 ACRES FS-Agriculture, FS- Unknown Unknown 1 Morrow Point Primary Contact and Crystal Recreation, FS- AQ Life Reservoirs Cold 1, FS- Water Supply

COGUUG26L_6800 Lakes trib to 886.25 ACRES NA-Water Supply, NA- Unknown Unknown 3 Upper Gunnison Agriculture, NA-AQ River Life Cold 1, NA- Primary Contact Recreation

COGUUG29aL_6800 Lakes and 120.5 ACRES NA-Primary Contact Unknown Unknown 3 reservoirs trib to Recreation, NA- Lake Fork of the Agriculture, NA-AQ Gunnison Life Cold 1, NA-Water Supply

COGUUG29b_6800 Lake San 312.2 ACRES NA-Water Supply, NA- Unknown Unknown 3 Cristobal Agriculture, NA- Primary Contact Recreation, NA-AQ Life Cold 1

COGUUN01L_7200 Lakes and 24.6 ACRES NA-Agriculture, NA- Unknown Unknown 3 reservoirs trib to AQ Life Cold 1, NA- Uncompahgre Water Supply, NA- River Primary Contact

Recreation Integrated QualityWater Monitoring and Assessment Report, AppendixB

10 Appendix B: Use Attainment Table, Lakes and Reservoirs

Legend: FS-Fully Supporting, NS-Not Supporting, N/A-Not Assessed, II-Insufficient Information

ID305(B) Assessment Total Size Unit Designated Uses Causes Sources IR Unit Name Category

COGUUN02L_7200 Lakes and 8 ACRES NA-Water Supply, NA- Unknown Unknown 3 reservoirs trib to Secondary Contact Uncompahgre Recreation, NA-AQ River Life Cold 1, NA- Agriculture

COGUUN03b_7200L Ridgway 528 ACRES II- AQ Life Cold 1, FS- Unknown Unknown 2 Reservoir Primary Contact Recreation, FS- Agriculture

COGUUN05L_7200 Lakes and 27.1 ACRES NA-Water Supply, NA- Unknown Unknown 3 reservoirs trib to Primary Contact Uncompahgre Recreation, NA-AQ River Life Cold 2, NA- Agriculture

COGUUN10L_7200 Lakes and 68.4 ACRES NA-Water Supply, NA- Unknown Unknown 3 reservoirs trib to AQ Life Cold 2, NA- Uncompahgre Agriculture, NA- River Primary Contact Recreation

COGUUN11L_7200 Lakes and 38.8 ACRES NA-Primary Contact Unknown Unknown 3

reservoirs trib to Recreation, NA-Water

| Coal Creek Supply, NA-AQ Life Cold 1, NA-Agriculture

COGUUN12L_7200 Lakes trib to the 163.2 ACRES NA-Agriculture, NA- Unknown Unknown 3 Uncompahgre AQ Life Warm 2, NA- River Secondary Contact Recreation

COGUUN14_7200 Sweitzer Lake 171.4 ACRES FS-Agriculture, NS-AQ Selenium Unknown 5 Life Warm 1, FS- Primary Contact Recreation

COLCLC09b_6500 Colorado River 1,545.20 ACRES NA-Primary Contact Unknown Unknown 3 lakes and Recreation, NA-Water reservoirs Supply, NA-AQ Life Cold 1, NA-Agriculture

COLCLC09bL_00 Fravert 10 ACRES NA-AQ Life Cold 1, Unknown Unknown 3 Reservoir NA-Water Supply, NA- Primary Contact Recreation, NA- Agriculture

COLCLC09bL_6500 Colorado River 237.3 ACRES NA-Primary Contact Unknown Unknown 3 lakes and Recreation, NA- reservoirs Agriculture, NA-AQ Life Cold 1, NA-Water Supply

COLCLC09bL_7300 Fruita Reservoir 5 ACRES NA-Primary Contact Unknown Unknown 3 Recreation, NA-Water Integrated QualityWater Monitoring and Assessment Report, AppendixB Supply, NA-

11 Appendix B: Use Attainment Table, Lakes and Reservoirs

Legend: FS-Fully Supporting, NS-Not Supporting, N/A-Not Assessed, II-Insufficient Information

ID305(B) Assessment Total Size Unit Designated Uses Causes Sources IR Unit Name Category

Agriculture, NA-AQ Life Cold 1

COLCLC13c_00 Walker Ponds 117 ACRES NA-Primary Contact Selenium Unknown 5 Recreation, FS- Agriculture, NS-AQ Life Warm 1

COLCLC19_6500 West Pond 3 ACRES FS- Primary Contact Selenium Unknown 5 Orchard Mesa Recreation, FS- SWA Agriculture, NS-AQ Life Warm 1

COLCLC19_6501 Highline Lake 164.9 ACRES NA-Agriculture, NA- Unknown Unknown 3 AQ Life Warm 1, NA- Primary Contact Recreation

COLCLC19_6502 Lakes and 663.4 ACRES NA-AQ Life Warm 1, Unknown Unknown 3 reservoirs trib to NA-Primary Contact the Colorado Recreation, NA-

River Agriculture

| COLCLC19_6503 Maggio Pond, 23.3 ACRES II- AQ Life Warm 1, Unknown Unknown 2 Peter's Pond 1, FS- Primary Contact 2, 3, and 4 Recreation, FS- Agriculture

COLCLC20_6500 Harvey Gap, and 1,071.20 ACRES NA-Primary Contact Unknown Unknown 3 Vega Reservoirs Recreation, NA- Agriculture, NA-AQ Life Cold 1, NA-Water Supply

COLCLC20_6501 Rifle Gap 315.5 ACRES FS- Primary Contact Mercury in Unknown 5 Reservoir Recreation, FS- Water Fish Tissue Supply, FS-Agriculture, NS-AQ Life Cold 1

COLCLC21_6500 Roan Creek 245.9 ACRES NA-Agriculture, NA- Unknown Unknown 3 Lakes and AQ Life Cold 1, NA- Reservoirs Water Supply, NA- Primary Contact Recreation

COLCLY23_8100 Yampa River 547.41 ACRES NA-AQ Life Warm 1, Unknown Unknown 3 Lakes and NA-Secondary Contact Reservoirs Recreation, NA- Agriculture

COLCLY24_8100 Freeman 19.4 ACRES NA-Agriculture, NA- Unknown Unknown 3 Reservoir AQ Life Cold 1, NA- Primary Contact

Recreation Integrated QualityWater Monitoring and Assessment Report, AppendixB

12 Appendix B: Use Attainment Table, Lakes and Reservoirs

Legend: FS-Fully Supporting, NS-Not Supporting, N/A-Not Assessed, II-Insufficient Information

ID305(B) Assessment Total Size Unit Designated Uses Causes Sources IR Unit Name Category

COLCLY24_8101 Aldrich Lakes 61.3 ACRES NA-Agriculture, NA- Unknown Unknown 3 AQ Life Cold 1, NA- Primary Contact Recreation

COLCLY26_8000 Fortification 72.3 ACRES NA-Secondary Contact Unknown Unknown 3 Creek lakes and Recreation, NA- reservoirs Agriculture, NA-AQ Life Warm 1

COLCLY26_8300 N and S Forks of 55.5 ACRES NA-AQ Life Cold 1, Unknown Unknown 3 White River - NA-Water Supply, NA- Lakes Agriculture, NA- Secondary Contact Recreation

COLCLY27_8000 Milk Creek lakes 32.3 ACRES NA-Agriculture, NA- Unknown Unknown 3 and reservoirs AQ Life Warm 1, NA- Water Supply, NA- Secondary Contact Recreation

COLCLY29_8000 Williams Fork 31.9 ACRES NA-Water Supply, NA- Unknown Unknown 3 lakes and Primary Contact | reserviors Recreation, NA-AQ Life Cold 1, NA- Agriculture

COLCLY29L_8000 Lakes and 87.1 ACRES NA-Water Supply, NA- Unknown Unknown 3 reservoirs trib to Agriculture, NA-AQ E, S Forks of Life Cold 1, NA- Williams Fork Primary Contact Rvr Recreation

COLCLY31_8100 Salter Creek 70.2 ACRES NA-Secondary Contact Unknown Unknown 3 lakes and Recreation, NA-AQ reservoirs Life Cold 1, NA-Water Supply, NA-Agriculture

COLCLY32_8600 Yampa River 388.1 ACRES NA-Primary Contact Unknown Unknown 3 Lakes and Recreation, NA- Reservoirs Agriculture, NA-AQ Life Warm 1

COLCLY33_8600 Beaver Creek 94.3 ACRES NA-Agriculture, NA- Unknown Unknown 3 Lakes and AQ Life Cold 1, NA- Reservoirs Water Supply, NA- Secondary Contact Recreation

COLCWH10a_8300 White River 143 ACRES NA-Agriculture, NA- Unknown Unknown 3 Lakes and AQ Life Cold 1, NA- Reservoirs Water Supply, NA- Primary Contact

Recreation Integrated QualityWater Monitoring and Assessment Report, AppendixB

13 Appendix B: Use Attainment Table, Lakes and Reservoirs

Legend: FS-Fully Supporting, NS-Not Supporting, N/A-Not Assessed, II-Insufficient Information

ID305(B) Assessment Total Size Unit Designated Uses Causes Sources IR Unit Name Category

COLCWH11_8300 Rio Blanco Lake 117.3 ACRES NS-Primary Contact pH Unknown 5 Recreation, NS-AQ Life Warm 1, FS-Agriculture

COLCWH11_8500 Taylor Draw 414 ACRES NA-Primary Contact Unknown Unknown 3 Reservoir Recreation, NA-Water Supply, NA-AQ Life Warm 1, NA- Agriculture

COLCWH24_8300 White River 1,171.80 ACRES NA-Primary Contact Unknown Unknown 3 Lakes Recreation, NA- Agriculture, NA-AQ Life Cold 1, NA-Water Supply

COLCWH24_8301 Trappers Lake 22.11 ACRES NA-Agriculture, NA- Unknown Unknown 3 AQ Life Cold 1, NA- Primary Contact Recreation, NA-Water Supply

COLCWH25_8300 Lake Avery 201 ACRES NA-Primary Contact Unknown Unknown 3

Recreation, NA- |

Agriculture, NA-Water Supply, NA-AQ Life Cold 1

COLCWH26_8300 Lakes and 80.1 ACRES NA-Primary Contact Unknown Unknown 3 reservoirs trib to Recreation, NA-Water N, S Forks Supply, NA-AQ Life White River Cold 1, NA-Agriculture

COLCWH27_8400 White River 128.4 ACRES NA-AQ Life Warm 1, Unknown Unknown 3 Lakes and NA-Secondary Contact Reservoirs Recreation, NA- Agriculture

CORGAL01L_5800 Lakes and 229.8 ACRES NA-AQ Life Cold 1, Unknown Unknown 3 reservoirs trib to NA-Agriculture, NA- Rio Grande Primary Contact Recreation, NA-Water Supply

CORGAL01L_6000 Lakes and 15.3 ACRES NA-Primary Contact Unknown Unknown 3 reservoirs trib to Recreation, NA-AQ Rio Grande Life Cold 1, NA- Agriculture, NA-Water Supply

CORGAL02L_5500 Lakes and 14.7 ACRES NA-AQ Life Cold 1, Unknown Unknown 3 reservoirs trib to NA-Water Supply, NA- Alamosa River Primary Contact Recreation, NA-

Agriculture Integrated QualityWater Monitoring and Assessment Report, AppendixB

14 Appendix B: Use Attainment Table, Lakes and Reservoirs

Legend: FS-Fully Supporting, NS-Not Supporting, N/A-Not Assessed, II-Insufficient Information

ID305(B) Assessment Total Size Unit Designated Uses Causes Sources IR Unit Name Category

CORGAL03CL_5500 Lakes and 6.8 ACRES NA-Agriculture, NA- Unknown Unknown 3 reservoirs trib to Primary Contact Alamosa River Recreation, NA-AQ Life Cold 1

CORGAL08_5500 Terrace 141.6 ACRES NA-Agriculture, NS- Iron, Copper Mining, 5 Reservoir AQ Life Cold 2, NA- Unknown Primary Contact Recreation

CORGAL11L_5500 Unnamed lakes 215.02 ACRES FS-Agriculture, FS- AQ Unknown Unknown 1 Life Cold 1, FS- Primary Contact Recreation

CORGAL11L_5600 La Jara Reservoir 1,122 ACRES FS-Agriculture, FS- DO Unknown 5 Primary Contact Recreation, NS-AQ Life Cold 1

CORGAL14L_5800 Platoro 416.1 ACRES II- Primary Contact Unknown Unknown 2 Reservoir Recreation, II- Water Supply, FS-Agriculture,

| II- AQ Life Cold 1

CORGAL14L_5801 Lakes and 47 ACRES NA-AQ Life Cold 1, Unknown Unknown 3 reservoirs trib to NA-Agriculture, NA- Conejos River Primary Contact Recreation, NA-Water Supply

CORGAL17L_5800 Lakes and 77 ACRES NA-Primary Contact Unknown Unknown 3 reservoirs trib to Recreation, NA-AQ Rio de Los Pinos Life Cold 1, NA-Water Supply, NA-Agriculture

CORGAL19L_6000 Lakes and 64.6 ACRES NA-AQ Life Cold 1, Unknown Unknown 3 reservoirs trib to NA-Water Supply, NA- Rio Chama Agriculture, NA- Primary Contact Recreation

CORGAL20L_5500 Lakes and 156.3 ACRES NA-AQ Life Cold 1, Unknown Unknown 3 reservoirs trib to NA-Agriculture, NA- Rio Grande Primary Contact Recreation, NA-Water Supply

CORGAL20L_5800 Lakes and 61.4 ACRES NA-Water Supply, NA- Unknown Unknown 3 reservoirs trib to AQ Life Cold 1, NA- Rio Grande Agriculture, NA- Primary Contact

Recreation Integrated QualityWater Monitoring and Assessment Report, AppendixB

15 Appendix B: Use Attainment Table, Lakes and Reservoirs

Legend: FS-Fully Supporting, NS-Not Supporting, N/A-Not Assessed, II-Insufficient Information

ID305(B) Assessment Total Size Unit Designated Uses Causes Sources IR Unit Name Category

CORGAL22_00 Lakes and 20.43 ACRES NA-Agriculture, NA- Unknown Unknown 3 Reservoirs AQ Life Warm 2, NA- tributary to the Primary Contact Rio Grande Recreation

CORGCB01L_5700 Lakes and 16.4 ACRES NA-AQ Life Cold 1, Unknown Unknown 3 reservoirs trib to NA-Water Supply, NA- Closed Basin Primary Contact Recreation, NA- Agriculture

CORGCB02L_5700 Lakes and 20.3 ACRES NA-Water Supply, NA- Unknown Unknown 3 reservoirs trib to AQ Life Cold 1, NA- La Garita Creek Agriculture, NA- Primary Contact Recreation

CORGCB03L_5600 Lakes and 2,088.60 ACRES NA-Primary Contact Unknown Unknown 3 reservoirs trib to Recreation, NA-AQ Closed Basin Life Warm 2, NA-

Agriculture

|

CORGCB03L_5700 Lakes and 848.9 ACRES NA-AQ Life Warm 2, Unknown Unknown 3 reservoirs trib to NA-Agriculture, NA- Closed Basin Primary Contact Recreation

CORGCB06_5600 San Luis Lake 530 ACRES NS-AQ Life Cold 1, FS- Iron, Unknown 5 Primary Contact Ammonia Recreation, FS- Agriculture

CORGCB07_5600 Head Lake 203.6 ACRES NA-Agriculture, NA- Unknown Unknown 3 AQ Life Cold 2, NA- Primary Contact Recreation

CORGCB10L_5600 Lakes and 58.1 ACRES NA-Primary Contact Unknown Unknown 3 reservoirs trib to Recreation, NA-Water Sand Creek Supply, NA-AQ Life Cold 1, NA-Agriculture

CORGCB11L_5600 Lakes and 244.55 ACRES NA-Agriculture, NA- Unknown Unknown 3 reservoirs trib to Primary Contact Closed Basin Recreation, NA-Water Supply, NA-AQ Life Cold 1

CORGCB14L_5700 Lakes and 1,426.76 ACRES NA-Primary Contact Unknown Unknown 3 reservoirs trib to Recreation, NA-AQ Closed Basin Life Warm 2, NA- Agriculture

CORGRG01L_5400 Lakes and 238.8 ACRES NA-Primary Contact Unknown Unknown 3 reservoirs trib to Recreation, NA-Water

Supply, NA- Integrated QualityWater Monitoring and Assessment Report, AppendixB

16 Appendix B: Use Attainment Table, Lakes and Reservoirs

Legend: FS-Fully Supporting, NS-Not Supporting, N/A-Not Assessed, II-Insufficient Information

ID305(B) Assessment Total Size Unit Designated Uses Causes Sources IR Unit Name Category

Rio Grande Agriculture, NA-AQ Life Cold 1

CORGRG02L_5400 Lakes and 1,114 ACRES NA-Primary Contact Unknown Unknown 3 reservoirs trib to Recreation, NA-Water Rio Grande Supply, NA- Agriculture, NA-AQ Life Cold 1

CORGRG03_5400 Rio Grande & 1,619.80 ACRES NA-Agriculture, NA- Unknown Unknown 3 Santa Maria AQ Life Cold 2, NA- Reservoirs Primary Contact Recreation

CORGRG05L_5400 Lakes and 5.3 ACRES NA-Water Supply, NA- Unknown Unknown 3 reservoirs trib to AQ Life Cold 1, NA- Rio Grande Agriculture, NA- Primary Contact Recreation

CORGRG08L_5400 Lakes and 63.8 ACRES NA-Agriculture, NA- Unknown Unknown 3 reservoirs trib to AQ Life Cold 1, NA- Goose Creek Water Supply, NA- Primary Contact

Recreation | CORGRG09L_5400 Lakes and 284.3 ACRES NA-AQ Life Cold 1, FS- Unknown Unknown 2 Rervoirs of the Agriculture, NA- South Fork of Primary Contact Rio Grande Recreation, NA-Water Supply

CORGRG09L_5401 Beaver Creek 64 ACRES FS- Primary Contact Unknown Unknown 1 Reservoir Recreation, FS- Agriculture, FS- AQ Life Cold 1, FS- Water Supply

CORGRG10L_5500 Lakes and 14.8 ACRES NA-Agriculture, NA- Unknown Unknown 3 reservoirs trib to AQ Life Cold 1, NA- Pinos Creek Water Supply, NA- Primary Contact Recreation

CORGRG11L_5500 Lakes and 5.9 ACRES NA-AQ Life Cold 1, Unknown Unknown 3 reservoirs trib to NA-Primary Contact San Francisco Recreation, NA- Creek Agriculture, NA-Water Supply

CORGRG15L_5500 Lakes and 139.2 ACRES NA-Secondary Contact Unknown Unknown 3 reservoirs trib to Recreation, NA-

Rio Grande Agriculture Integrated QualityWater Monitoring and Assessment Report, AppendixB

17 Appendix B: Use Attainment Table, Lakes and Reservoirs

Legend: FS-Fully Supporting, NS-Not Supporting, N/A-Not Assessed, II-Insufficient Information

ID305(B) Assessment Total Size Unit Designated Uses Causes Sources IR Unit Name Category

CORGRG16L_5500 Lakes and 61.8 ACRES NA-AQ Life Warm 2, Unknown Unknown 3 reservoirs trib to NA-Primary Contact Alamosa Ntl Recreation, NA- Wildlife Refuge Agriculture

CORGRG17L_5500 Lakes and 43.8 ACRES NA-Primary Contact Unknown Unknown 3 reservoirs trib to Recreation, NA-AQ Monte Vista Ntl Life Warm 2, NA- Wildlife Refuge Agriculture

CORGRG18L_5500 Lakes and 1,676.80 ACRES NA-Agriculture, NA- Unknown Unknown 3 reservoirs trib to AQ Life Warm 2, NA- Rio Grande Primary Contact Recreation

CORGRG18L_5900 Lakes and 182.9 ACRES NA-Primary Contact Unknown Unknown 3 reservoirs trib to Recreation, NA-AQ Rio Grande Life Warm 2, NA- Agriculture

CORGRG23L_5500 Lakes and 38 ACRES NA-Agriculture, NA- Unknown Unknown 3

reservoirs trib to Primary Contact |

Sangre de Cristo Recreation, NA-AQ Creek Life Cold 1

CORGRG25L_5500 Lakes and 123.8 ACRES NA-Agriculture, NA- Unknown Unknown 3 reservoirs trib to AQ Life Cold 1, NA- Trinchera Creek Water Supply, NA- Primary Contact Recreation

CORGRG27_5500 Smith Reservoir 673 ACRES FS-Agriculture, FS- AQ Unknown Unknown 2 Life Cold 1, FS- Water Supply, II- Primary Contact Recreation

CORGRG28L_5500 Lakes and 27 ACRES NA-Agriculture, NA- Unknown Unknown 3 reservoirs trib to AQ Life Cold 1, NA- Rito Seco Primary Contact Recreation, NA-Water Supply

CORGRG30L_5500 Lakes and 11.5 ACRES NA-Water Supply, NA- Unknown Unknown 3 reservoirs trib to Agriculture, NA-AQ Culebra Creek Life Cold 1, NA- Primary Contact Recreation

CORGRG30L_553D Sanchez 743.2 ACRES NS-AQ Life Cold 1, DO, Mercury Unknown 5 Reservoir NA-Primary Contact in Fish Tissue Recreation, NA-Water Supply, NA-Agriculture

COSJAF01L_8900 Lakes and 288.9 ACRES NA-Water Supply, NA- Unknown Unknown 3 reservoirs trib to Primary Contact

Animas and Recreation, NA- Integrated QualityWater Monitoring and Assessment Report, AppendixB

18 Appendix B: Use Attainment Table, Lakes and Reservoirs

Legend: FS-Fully Supporting, NS-Not Supporting, N/A-Not Assessed, II-Insufficient Information

ID305(B) Assessment Total Size Unit Designated Uses Causes Sources IR Unit Name Category

Florida Rivers Agriculture, NA-AQ Life Cold 1

COSJAF02L_8900 Lakes and 24.7 ACRES NA-Primary Contact Unknown Unknown 3 reservoirs trib to Recreation, NA- Animas River Agriculture

COSJAF03CL_8900 Lakes and 43.44 ACRES NA-AQ Life Cold 2, Unknown Unknown 3 reservoirs trib to NA-Agriculture, NA- Animas river Primary Contact Recreation

COSJAF06L_8900 Lakes and 23.4 ACRES NA-Agriculture, NA- Unknown Unknown 3 reservoirs trib to AQ Life Cold 1, NA- Animas River Water Supply, NA- Primary Contact Recreation

COSJAF07L_8900 Lakes and 3.3 ACRES NA-Primary Contact Unknown Unknown 3 reservoirs trib to Recreation, NA- Cement Creek Agriculture

COSJAF08L_8900 Lakes and 3.5 ACRES NA-Primary Contact Unknown Unknown 3

reservoirs trib to Recreation, NA- | South Mineral Agriculture Creek

COSJAF12AL_8900 Lakes and 491.61 ACRES NA-AQ Life Cold 1, Unknown Unknown 3 reservoirs trib to NA-Water Supply, NA- Animas River Primary Contact Recreation, NA- Agriculture

COSJAF12AL_8920 Electra 1,293.95 ACRES FS-Agriculture, FS- Unknown Unknown 2 Reservoir Primary Contact Recreation, FS- Water Supply, II- AQ Life Cold 1

COSJAF12B_8900 Lemon 626.2 ACRES FS- Primary Contact Unknown Unknown 1 Reservoir Recreation, FS- Water Supply, FS-Agriculture, FS- AQ Life Cold 1

COSJAF13BL_8900 Lakes and 99.2 ACRES NA-Agriculture, NA- Unknown Unknown 3 reserviors trib to AQ Life Cold 2, NA- Animas River Primary Contact Recreation, NA-Water Supply

COSJAF13CL_8900 Lakes and 69.6 ACRES NA-Agriculture, NA- Unknown Unknown 3 reservoirs trib to Water Supply, NA-AQ Animas River Life Cold 2, NA- Primary Contact Recreation

COSJDO04bL_7401 Summit 1,027.50 ACRES FS-Agriculture, FS- Unknown Unknown 1

Integrated QualityWater Monitoring and Assessment Report, AppendixB Reservoir Primary Contact

19 Appendix B: Use Attainment Table, Lakes and Reservoirs

Legend: FS-Fully Supporting, NS-Not Supporting, N/A-Not Assessed, II-Insufficient Information

ID305(B) Assessment Total Size Unit Designated Uses Causes Sources IR Unit Name Category

Recreation, FS- AQ Life Cold 2, FS- Water Supply

COSJDO04bL_743D McPhee 4,035.60 ACRES FS-Agriculture, FS- Mercury in Unknown 5 Reservoir Primary Contact Fish Tissue Recreation, NS-AQ Life Cold 1, FS- Water Supply

COSJDO05L_7400 Lakes and 933.85 ACRES NA-Agriculture, NA- Unknown Unknown 3 reservoirs trib to Primary Contact Dolores River Recreation, NA-AQ Life Cold 1, NA-Water Supply

COSJDO11L_7400 Lakes and 115.8 ACRES NA-Agriculture, NA- Unknown Unknown 3 reservoirs trib to AQ Life Cold 2, NA- Dolores River Primary Contact Recreation, NA-Water Supply

COSJLP01L_9000 Lakes and 4.9 ACRES NA-Water Supply, NA- Unknown Unknown 3 reservoirs trib to AQ Life Cold 1, NA-

La Plata River Agriculture, NA- |

Primary Contact Recreation

COSJLP03BL_9000 Lakes and 72.6 ACRES NA-Agriculture, NA- Unknown Unknown 3 reservoirs trib to Secondary Contact La Plata River Recreation, NA-AQ Life Warm 2

COSJLP04aL_9100 Lakes and 236 ACRES NA-Water Supply, NA- Unknown Unknown 3 reservoirs trib to AQ Life Cold 1, NA- Mancos River Agriculture, NA- Primary Contact Recreation

COSJLP06AL_9100 Lakes and 152.5 ACRES NA-Agriculture, NA- Unknown Unknown 3 reservoirs trib to AQ Life Warm 2, NA- Mancos River Primary Contact Recreation

COSJLP06BL_9100 Lakes and 19 ACRES NA-Agriculture, NA- Unknown Unknown 3 reservoirs trib to AQ Life Warm 2, NA- Mancos River Primary Contact Recreation

COSJLP11L_9300 Totten Reservoir 433 ACRES NA-Agriculture, NA- Mercury in Unknown 5 Primary Contact Fish Tissue Recreation, NS-AQ Life Warm 1, NA-Water Supply

COSJLP11L_9301 Puett Reservoir 323.15 ACRES NA-Primary Contact Unknown Unknown 2 Recreation, NA- Agriculture, FS- AQ

Life Warm 1, NA- Integrated QualityWater Monitoring and Assessment Report, AppendixB

20 Appendix B: Use Attainment Table, Lakes and Reservoirs

Legend: FS-Fully Supporting, NS-Not Supporting, N/A-Not Assessed, II-Insufficient Information

ID305(B) Assessment Total Size Unit Designated Uses Causes Sources IR Unit Name Category

Water Supply

COSJLP11L_933D Narraguinnep 1,147.80 ACRES FS-Agriculture, NS-AQ Mercury in Unknown 5 Reservoir Life Cold 1, FS- Water Fish Tissue Supply, FS- Primary Contact Recreation

COSJPI01L_8800 Lakes and 27 ACRES NA-Agriculture, NA- Unknown Unknown 3 reservoirs trib to Water Supply, NA-AQ Piedra River Life Cold 1, NA- Primary Contact Recreation

COSJPI05L_8800 Lakes and 112.16 ACRES NA-Water Supply, NA- Unknown Unknown 3 reservoirs trib to Primary Contact Piedra River Recreation, NA-AQ Life Cold 1, NA- Agriculture

COSJPI05L_8810 Williams Creek 546.59 ACRES FS-Agriculture, II- AQ Unknown Unknown 2 Reservoir Life Cold 1, II- Primary Contact Recreation, FS-

Water Supply

| COSJPI06AL_8800 Lakes and 191.2 ACRES NA-Agriculture, NA- Unknown Unknown 3 reservoirs trib to AQ Life Warm 2, NA- Piedra River Water Supply, NA- Primary Contact Recreation

COSJPI07_8800 Hatcher, 147.6 ACRES NA-Primary Contact Unknown Unknown 3 Stevens, Pagosa, Recreation, NA-Water Village, and Supply, NA-AQ Life Forest Lakes Warm 1, NA- Agriculture

COSJPN01L_8700 Lakes and 700.9 ACRES NA-Primary Contact Unknown Unknown 3 reservoirs trib to Recreation, NA-Water Los Pinos River Supply, NA-AQ Life Cold 1, NA-Agriculture

COSJPN03L_8700 Vallecito 2,654.60 ACRES NA-Agriculture, NS- Mercury in Unknown 5 Reservoir AQ Life Cold 1, NA- Fish Tissue Water Supply, NA- Primary Contact Recreation

COSJPN04AL_8700 Lakes and 17 ACRES NA-Water Supply, NA- Unknown Unknown 3 reservoirs trib to AQ Life Cold 1, NA- Los Pinos River Primary Contact Recreation, NA- Agriculture

COSJPN06AL_8700 Lakes and 28.6 ACRES NA-Agriculture, NA- Unknown Unknown 3 reservoirs trib to Primary Contact Los Pinos River Recreation, NA-AQ

Life Cold 2 Integrated QualityWater Monitoring and Assessment Report, AppendixB

21 Appendix B: Use Attainment Table, Lakes and Reservoirs

Legend: FS-Fully Supporting, NS-Not Supporting, N/A-Not Assessed, II-Insufficient Information

ID305(B) Assessment Total Size Unit Designated Uses Causes Sources IR Unit Name Category

COSJPN06BL_8700 Lakes and 34.1 ACRES NA-Agriculture, NA- Unknown Unknown 3 reservoirs trib to Primary Contact Los Pinos River Recreation, NA-AQ Life Cold 2

COSJSJ01L_8700 Lakes and 33.7 ACRES NA-Primary Contact Unknown Unknown 3 reservoirs trib to Recreation, NA-Water Navajo and Little Supply, NA-AQ Life Navaho Rivers Cold 1, NA-Agriculture

COSJSJ04L_8700 Lakes/reservoirs 129.4 ACRES NA-AQ Life Cold 1, Unknown Unknown 3 trib to San Juan, NA-Agriculture, NA- Rio Blanco, and Water Supply, NA- Navajo rv Primary Contact Recreation

COSJSJ05L_8700 Lakes/reservoirs 56.4 ACRES NA-Agriculture, NA- Unknown Unknown 3 trib to San Juan AQ Life Cold 1, NA- and East/West Water Supply, NA- Forks Primary Contact Recreation

COSJSJ06a_8701 Echo Canyon 115.7 ACRES II- Primary Contact DO, Unknown 5 Reservoir Recreation, FS- Temperature,

Agriculture, NS-AQ Mercury in |

Life Cold 1, FS- Water Fish Tissue Supply

COSJSJ08_8700 Navajo Reservoir 5,079.41 ACRES NA-Water Supply, NA- Unknown Unknown 3 Primary Contact Recreation, NA- Agriculture, II- AQ Life Warm 1

COSJSJ09AL_8700 Lakes and 65.6 ACRES NA-Primary Contact Unknown Unknown 3 reservoirs trib to Recreation, NA-AQ Rio Blanco Life Cold 1, NA- Agriculture, NA-Water Supply

COSJSJ11AL_8700 Lakes and 135.5 ACRES NA-Primary Contact Unknown Unknown 3 reservoirs trib to Recreation, NA-AQ San Juan River Life Warm 1, NA- Agriculture

COSJSJ11bL_8700 Lakes and 43.2 ACRES NA-Agriculture, NA- Unknown Unknown 3 Reservoirs trib AQ Life Warm 1, NA- to Primary Contact Recreation

COSPBD01L_0600 Lakes and 6.3 ACRES NA-Agriculture, NA- Unknown Unknown 3 reservoirs trib to Primary Contact Big Dry Creek Recreation, NA-AQ Life Warm 2

COSPBD02_0600 Standley Lake 2,406.85 ACRES FS-Agriculture, FS- AQ Unknown Unknown 1 Life Warm 1, FS- Water Supply, FS- Primary

Contact Recreation Integrated QualityWater Monitoring and Assessment Report, AppendixB

22 Appendix B: Use Attainment Table, Lakes and Reservoirs

Legend: FS-Fully Supporting, NS-Not Supporting, N/A-Not Assessed, II-Insufficient Information

ID305(B) Assessment Total Size Unit Designated Uses Causes Sources IR Unit Name Category

COSPBD03_0600 Great Western 140 ACRES FS- AQ Life Warm 2, Unknown Unknown 1 Reservoir FS- Water Supply, FS- Agriculture, FS- Secondary Contact Recreation

COSPBD05L_00 Lakes and 1.5 ACRES NA-Agriculture, NA- Unknown Unknown 3 reservoirs trib to AQ Life Warm 2, NA- North Walnut Secondary Contact Creek Recreation, NA-Water Supply

COSPBD07_0600 Lakes and 1,797.34 ACRES NA-Primary Contact Unknown Unknown 3 reservoirs in the Recreation, NA-Water Big Dry Creek Supply, NA-AQ Life System Warm 2, NA- Agriculture

COSPBE01C_0500 Bear Creek 116.7 ACRES FS-Agriculture, NS-AQ Chlorophyll- Unknown 5 Reservoir Life Cold 1, FS- Water a, Total Supply, FS- Primary Phosphorous Contact Recreation

COSPBE01D_0500 Evergreen Lake. 37.8 ACRES NA-Water Supply, NA- Unknown Unknown 3

Primary Contact

| Recreation, NA-AQ Life Cold 1, NA- Agriculture

COSPBE08_0500 Lakes and 101.1 ACRES NA-Water Supply, NA- Unknown Unknown 3 reservoirs in the Primary Contact Bear Creek Recreation, NA-AQ Ssytem Life Cold 1, NA- Agriculture

COSPBE09_0500 Lakes and 1 ACRES NA-AQ Life Cold 1, Unknown Unknown 3 reservoirs in the NA-Water Supply, NA- Bear Creek Primary Contact System Recreation, NA- Agriculture

COSPBE10_0500 Lakes and 1 ACRES NA-Water Supply, NA- Unknown Unknown 3 reservoirs in Primary Contact drainages off Recreation, NA- Bear Creek Agriculture, NA-AQ Life Cold 2

COSPBE11_0500 Lakes and 736.24 ACRES NA-Primary Contact Unknown Unknown 3 reservoirs in the Recreation, NA- Bear Creek Agriculture, NA-Water System Supply, NA-AQ Life Warm 2

COSPBE12_0500 Lakes and 7.2 ACRES NA-Agriculture, NA- Unknown Unknown 3 reservoirs in the AQ Life Cold 2, NA- Turkey Creek Water Supply, NA- System Primary Contact

Recreation Integrated QualityWater Monitoring and Assessment Report, AppendixB

23 Appendix B: Use Attainment Table, Lakes and Reservoirs

Legend: FS-Fully Supporting, NS-Not Supporting, N/A-Not Assessed, II-Insufficient Information

ID305(B) Assessment Total Size Unit Designated Uses Causes Sources IR Unit Name Category

COSPBO13_0800 Lakes and 133.1 ACRES NA-Agriculture, NA- Unknown Unknown 3 reservoirs trib to AQ Life Cold 1, NA- Boulder Creek Water Supply, NA- Primary Contact Recreation

COSPBO14_0800 Lakes and 379.5 ACRES NA-Primary Contact Unknown Unknown 3 reservoirs trib to Recreation, NA-Water Boulder Creek Supply, NA- Agriculture, NA-AQ Life Cold 1

COSPBO14_0801 Barker Reservoir 196.5 ACRES II- AQ Life Cold 1, FS- Unknown Unknown 2 Agriculture, FS- Water Supply, FS- Primary Contact Recreation

COSPBO15_0800 Lakes and 709.7 ACRES NA-Agriculture, NA- Unknown Unknown 3 reservoirs trib to Primary Contact South Boulder Recreation, II- AQ Life Creek Cold 2, NA-Water Supply

COSPBO16_0800 Lakes and 501.1 ACRES NA-Agriculture, NA- Unknown Unknown 3

reservoirs trib to AQ Life Cold 2, NA- |

South Boulder Water Supply, NA- Creek Primary Contact Recreation

COSPBO17_0800 Lakes and 1,469.90 ACRES NA-Primary Contact Unknown Unknown 3 reservoirs trib to Recreation, NA- Boulder Creek Agriculture, NA-AQ Life Cold 2, NA-Water Supply

COSPBT11_0900 Carter Lake 1,119.93 ACRES FS- Primary Contact Arsenic, Unknown 5 Recreation, NS-AQ Life Mercury in Cold 1, FS- Water Fish Tissue Supply, FS-Agriculture

COSPBT12_0900 Lake Loveland 1,595.70 ACRES FS- AQ Life Warm 1, Unknown Unknown 1 and Horseshoe FS- Water Supply, FS- Lake Primary Contact Recreation, FS- Agriculture

COSPBT12_0901 Boyd Lake 1,511.19 ACRES FS-Agriculture, FS- Mercury in Unknown 5 Primary Contact Fish Tissue Recreation, NS-AQ Life Warm 1, FS- Water Supply

COSPBT13_0900 Berthoud 83.44 ACRES NA-Agriculture, NA- Unknown Unknown 3 Reservoir, AQ Life Warm 2, NA- Johnstown Water Supply, NA- Reservoir. Primary Contact

Recreation Integrated QualityWater Monitoring and Assessment Report, AppendixB

24 Appendix B: Use Attainment Table, Lakes and Reservoirs

Legend: FS-Fully Supporting, NS-Not Supporting, N/A-Not Assessed, II-Insufficient Information

ID305(B) Assessment Total Size Unit Designated Uses Causes Sources IR Unit Name Category

COSPBT14_0900 Lonetree 805 ACRES FS-Agriculture, FS- Unknown Unknown 2 Reservoir Primary Contact Recreation, FS- Water Supply, II- AQ Life Warm 1

COSPBT14_0901 Lon Hagler 619.1 ACRES FS-Agriculture, FS- AQ Unknown Unknown 1 Reservoir Life Warm 1, FS- Water Supply, FS- Primary Contact Recreation

COSPBT15_0900 Lakes and 525.4 ACRES NA-AQ Life Cold 1, Unknown Unknown 3 reservoirs trib to NA-Water Supply, NA- the Big Agriculture, NA- Thompson River Primary Contact Recreation

COSPBT16_0900 Lakes and 101.2 ACRES NA-Agriculture, NA- Unknown Unknown 3 reservoirs trib to AQ Life Cold 1, NA- Big Thompson Water Supply, NA- River Primary Contact Recreation

COSPBT16_0901 Lakes Estes 237.2 ACRES FS-Agriculture, FS- Lead, Copper Unknown 5

Primary Contact

| Recreation, NS-AQ Life Cold 1, FS- Water Supply

COSPBT17_0900 Lakes and 3,240.24 ACRES NA-Agriculture, NA- Unknown Unknown 3 reservoirs trib to AQ Life Warm 2, NA- the Big Water Supply, NA- Thompson River Primary Contact Recreation

COSPBT18_0900 Lakes and 1 ACRES NA-AQ Life Cold 1, Unknown Unknown 3 reservoirs trib to NA-Water Supply, NA- Little Thompson Agriculture, NA- River Primary Contact Recreation

COSPBT19_0900 Lakes and 2,412.70 ACRES NA-Agriculture, NA- Unknown Unknown 3 reservoirs trib to AQ Life Warm 2, NA- the Little Water Supply, NA- Thompson River Primary Contact Recreation

COSPCH02_0600 Cherry Creek 858.26 ACRES FS-Agriculture, FS- AQ Unknown Unknown 1 Reservoir Life Warm 1, FS- Water Supply, FS- Primary Contact Recreation

COSPCH05_0600 Lakes and 466.6 ACRES NA-Agriculture, NA- Unknown Unknown 3 reservoirs in the AQ Life Warm 2, NA- Cherry Creek Water Supply, NA- System Primary Contact

Recreation Integrated QualityWater Monitoring and Assessment Report, AppendixB

25 Appendix B: Use Attainment Table, Lakes and Reservoirs

Legend: FS-Fully Supporting, NS-Not Supporting, N/A-Not Assessed, II-Insufficient Information

ID305(B) Assessment Total Size Unit Designated Uses Causes Sources IR Unit Name Category

COSPCH06_0600 Lakes and 45.5 ACRES NA-Agriculture, NA- Unknown Unknown 3 reservoirs in AQ Life Warm 2, NA- watersheds trib Primary Contact to Cherry Creek Recreation

COSPCH06_0601 Lollipop Lake 66 ACRES FS- Primary Contact DO Unknown 5 Recreation, FS- Agriculture, NS-AQ Life Warm 2

COSPCL07_0701 Lakes and 19.8 ACRES NA-AQ Life Cold 2, Unknown Unknown 3 reservoirs trib to NA-Primary Contact Woods Creek Recreation

COSPCL17a_0700 Arvada 186.2 ACRES NS-AQ Life Cold 2, FS- Temperature, Unknown 5 Reservoir Water Supply, FS- DO Agriculture, FS- Primary Contact Recreation

COSPCL20_0700 Lakes and 34.9 ACRES NA-Agriculture, NA- Unknown Unknown 3 reservoirs in the Water Supply, NA- Clear Creek Primary Contact System Recreation, NA-AQ

Life Cold 1

|

* There are instances where a segment designated as a Category 5 may identify additional parameters in this table not included on the 2010 303(d) List. This is largely due to the fact that a TMDL has been written and approved but the segment is still not attaining water quality standards. The Assessment Database continues to track these parameters until the segment attains standards for these particular pollutants.

This may also happen on segments where there are parameters included on the M&E List for this same segment. Integrated QualityWater Monitoring and Assessment Report, AppendixB

26

Appendix C is the APPENDIX C delisting table, which has been

added in accordance

with the IR

guidance for ease in 303(d) list tracking

and review.

Confluence of Colorado and Green Rivers

Assessment Unit-Cause Combinations Removed from 303(d) List

State: CO Cycle: 2010

AU Water Reason for Assessment Unit Location Description Size Cause Name Type Removal

Fountain HUC: 11020003 Applicable WQS Creek - attained; threatened COARFO01a_3500 Source to RIVER 139 MILES Selenium water no longer Monume threatened nt Creek

Fountain HUC: 11020003 Creek - Applicable WQS Hwy 47 attained; threatened COARFO02B_3500 RIVER 4.6 MILES Selenium to water no longer Arkansas threatened River

Mainstem of Monument Creek, Applicable WQS Below from the boundary of National attained; threatened COARFO06_3501 Mesa STREAM 1.5 MILES Selenium Forest lands to the confluence water no longer Road

| with Fountain Creek. threatened

Tributary to the mainstem of the Apishapa River from I-25 to the confluence with the Arkansas River; mainstem of Timpas Applicable WQS Lorencito COARLA04_4200 Creek from the source to the STREAM 25.2 MILES Selenium attained; reason for Canyon Arkansas River; mainstem of recovery unspecified Lorencito Canyon, from the source to the confluence with the Purgatoire River.

Purgatoir HUC: 11020010 and Assessment Report, AppendixC e River - Applicable WQS North, attained; threatened COARLA05A_4200 RIVER 235.6 MILES Selenium South, water no longer Middle threatened Forks of

Lake HUC: 11020001 Creek TMDL approved or mainstem COARUA10_3300 RIVER 62.7 MILES Copper established by EPA & some (4A) tributarie

s Integrated QualityWater Monitoring

1 HUC: 14030002 Mainstem of the Dolores River from the bridge at Bradfield Ranch (Forest Applicable WQS Dolores Route 505, near attained; threatened COGULD01_7400 RIVER 62.8 MILES Iron River Montezuma/Dolores County water no longer Line) to the Little Gypsum threatened Valley Bridge at the San Miguel/Montrose County Line.

Gunnison HUC: 14020005 River - TMDL approved or COGULG02_7100 Uncompa RIVER 60 MILES Selenium established by EPA ghre to (4A) Colorado

Gunnison HUC: 14020005 TMDL approved or River 1116.718162 COGULG04a_7100 RIVER Selenium established by EPA Tributarie MILES (4A) s

Peach HUC: 14020005 TMDL approved or 15.02788 MIL COGULG04a_7120 Valley RIVER Selenium established by EPA ES Creek (4A)

HUC: 14020005 TMDL approved or Wells 9.511942 MIL

COGULG04a_7130 RIVER Selenium established by EPA | Gulch ES (4A)

HUC: 14020005 TMDL approved or Whitewat 5.325206 MIL COGULG04a_7140 RIVER Selenium established by EPA er Creek ES (4A)

HUC: 14020005 TMDL approved or Cumming 2.952428 MIL COGULG04a_7150 RIVER Selenium established by EPA s Gulch ES (4A)

HUC: 14020005 TMDL approved or Callow 2.326183 MIL COGULG04a_7160 RIVER Selenium established by EPA Creek ES (4A)

HUC: 14020002 All lakes and reservoirs that are tributary to the Gunnison River and not on Applicable WQS FRESHW Juniata national forest lands from the Mercury in attained; threatened COGULG04b_7100 ATER 96.6 ACRES Reservoir outlet of Crystal Reservoir to the Fish Tissue water no longer LAKE confluence with the Colorado threatened River, including all tributaries to

Reeder, Hollenbeck, and Juniata Integrated QualityWater Monitoring and Assessment Report, AppendixC

2 Tributary of Red Rock Creek from the boundary of Black TMDL approved or Red Rock COGULG04c_6800 Canyon of the Gunnison CREEK 5.9 MILES Selenium established by EPA Creek National Park to the confluence (4A) of the Gunnison River.

Mainstem of Surface Creek and Kannah Creek, including all Applicable WQS tributaries, from the boundary of Kannah attained; threatened COGULG08_7101 national forest lands to the point CREEK 13.1 MILES Selenium Creek water no longer of diversion for public water threatened supply; Fruita Water Supply Reservoirs I and II.

Gunnison HUC: 14020004 River - North TMDL approved or Fork, COGUNF03_7000 RIVER 19.6 MILES Selenium established by EPA Black (4A) Bridge to confluenc e

HUC: 14020004 TMDL approved or Leroux COGUNF05_7000 RIVER 8.931 MILES Selenium established by EPA

Creek

(4A)

|

HUC: 14020004 TMDL approved or COGUNF05_703D Jay Creek RIVER 15.9 MILES Selenium established by EPA (4A)

HUC: 14020004 All tributaries to the North Fork of the Gunnison River including all Short TMDL approved or lakes, reservoirs, and wetlands COGUNF06a_7000 Draw RIVER 7.4 MILES Selenium established by EPA which are not on national forest Creek (4A) lands, except for the specific listings in Segments 4, 5, 6b and and Assessment Report, AppendixC 7.

HUC: 14020004 Mainstem and all tributaries to Bear Creek, Reynolds Creek, Bell Creek, Cottonw TMDL approved or McDonald Creek, Cottonwood COGUNF06b_7001 ood RIVER 12.1 MILES Selenium established by EPA Creek, Love Gulch, Cow Creek, Creek (4A) Dever Creek, German Creek, Miller Creek, Stevens Gulch, Big

Gulch, Stingley Gulch Integrated QualityWater Monitoring

3 HUC: 14030003 Mainstem of Ingram Creek including all TMDL approved or Ingram tributaries, lakes, reservoirs, and COGUSM06A_7500 RIVER 3.21 MILES Cadmium established by EPA Creek wetlands from source to (4A) confluence with San Miguel River.

HUC: 14030003 Mainstem of Marshall Creek including all TMDL approved or Marshall tributaries, lakes, reservoirs, and COGUSM06B_7500 RIVER 1.51 MILES Cadmium established by EPA Creek wetlands from source to (4A) confluence with San Miguel River

HUC: 14020001 Mainstem of Coal Creek from a point immediately above the confluence with Elk Creek to a Applicable WQS 4.85 MILES, COGUUG11_6700, Coal point immediately below the attained; threatened RIVER 2.423578 MIL Lead COGUUG11_6720 Creek Crested Butte Water Supply water no longer ES intake which is above the threatened confluence with the /Red Lady Basin drainage; and Elk Cree

HUC: 14020002 Mainstem of | Henson Creek, including all tributaries and wetlands, from TMDL approved or Henson COGUUG30_6800 the source to the confluence with RIVER 40.6 MILES Cadmium established by EPA Creek the Lake Fork of the Gunnison, (4A) except for the specific listing in Segments 31 and 32.

HUC: 14020002 Mainstem of Henson Creek, including all tributaries and wetlands, from TMDL approved or Henson COGUUG30_6800 the source to the confluence with RIVER 40.6 MILES Zinc established by EPA Creek the Lake Fork of the Gunnison, (4A) except for the specific listing in Segments 31 and 32.

HUC: 14020002 Mainstem of TMDL approved or Palmetto COGUUG31_6800 Palmetto Gulch Creek including RIVER 1.71 MILES Cadmium established by EPA Gulch all tributaries. (4A)

HUC: 14020002 Mainstem of TMDL approved or Palmetto COGUUG31_6800 Palmetto Gulch Creek including RIVER 1.71 MILES Zinc established by EPA Gulch

all tributaries. (4A) Integrated QualityWater Monitoring and Assessment Report, AppendixC

4 Uncompa HUC: 14020006 Mainstem of hgre the Uncompahgre River from La River - La Salle Road to Confluence Park. TMDL approved or COGUUN04B_720 Salle RIVER 25.3 MILES Selenium established by EPA 0 Road to (4A) Confluen ce Park

Uncompa HUC: 14020006 Mainstem of hgre the Uncompahgre River from River Confluence Park to the TMDL approved or COGUUN04C_720 from confluence with the Gunnison RIVER 0.48 MILES Selenium established by EPA 0 Confluen River. (4A) ce Park to Gunnison River

HUC: 14020006 All tributaries to the Uncompahgre River, Uncompa including all wetlands, lakes and hgre TMDL approved or reservoirs, from the South Canal 441.92559 MI COGUUN12_7200 River RIVER Selenium established by EPA near Uncompahgre to the LES tributarie (4A) confluence with the Gunnison s River, except for specific listings

in Segments 13, 14, 15a and 15b

| HUC: 14020006 All tributaries to the Uncompahgre River, Dry including all wetlands, lakes and Creek, TMDL approved or reservoirs, from the South Canal 40.825726 MI COGUUN12_7220 Loutzenhi RIVER Selenium established by EPA near Uncompahgre to the LES zer (4A) confluence with the Gunnison Arroyo River, except for specific listings in Segments 13, 14, 15a and 15b

All tributaries to the Uncompahgre River, including Lakes trib all wetlands, lakes and

and Assessment Report, AppendixC to the reservoirs, from the South Canal FRESHW TMDL approved or COGUUN12L_7200 Uncompa near Uncompahgre to the ATER 163.2 ACRES Selenium established by EPA hgre confluence with the Gunnison LAKE (4A) River River, except for specific listings in Segments 13, 14, 15a and

15b. Integrated QualityWater Monitoring

5 HUC: 14010005 Mainstem of Colorado River from Applicable WQS Colorado immediately above the attained; threatened COLCLC03_6500 RIVER 43.9 MILES Selenium River confluence of the Gunnison water no longer River to the Colorado-Utah state threatened line.

Mainstem of Boulder Creek, Boulder including all tributaries, lakes, Creek - reservoirs and wetlands, from 13th the boundary of the Indian Peaks TMDL approved or Street in Escherichia COSPBO02b_0801 Wilderness Area to a point RIVER 4.17 MILES established by EPA Boulder coli immediately above the (4A) to S. confluence with South Boulder Boulder Creek, except for the specific Creek listings in Segment 3

Mainstem of South Boulder Creek, including all tributaries, TMDL approved or Gamble COSPBO04A_0801 lakes, reservoirs and wetlands, RIVER 3.72 MILES Cadmium established by EPA Gulch from the source to the outlet of (4A) Gross Reservoir.

Barr Lake Applicable WQS FRESHW 1725.59 ACR Ammonia attained; threatened

COSPMS04_0600 Barr Lake ATER

ES (Un-ionized) water no longer |

LAKE threatened

HUC: 10190002 TMDL approved or Geneva COSPUS05A_0500 RIVER 9.06 MILES Cadmium established by EPA Creek (4A)

HUC: 10190002 TMDL approved or Geneva COSPUS05A_0500 RIVER 9.06 MILES Copper established by EPA Creek (4A)

HUC: 10190002 TMDL approved or Geneva COSPUS05A_0500 RIVER 9.06 MILES Zinc established by EPA Creek (4A)

Geneva HUC: 10190002 Mainstem of Crk - Geneva Creek from the Scott confluence with Scott Gomer Gomer Creek to the confluence with the TMDL approved or COSPUS05B_0500 Ck to N. North Fork of the South Platte RIVER 28.9 MILES Cadmium established by EPA Fork River; all tributaries of Geneva (4A) South Creek including lakes, reservoirs Platte and wetlands from source to

River confluence with the Integrated QualityWater Monitoring and Assessment Report, AppendixC

6 S. Platte HUC: 10190003 Mainstem of River - the South Platte River from the TMDL approved or Burlingto Burlington Ditch diversion in COSPUS15_0600 RIVER 3.7 MILES Cadmium established by EPA n ditch to Denver, Colorado, to a point (4A) Clear immediately Creek

Lakes and reservoirs in watersheds tributary to the Upper South Platte River and Applicable WQS FRESHW Barnum within the City and County of Escherichia attained; threatened COSPUS23_0607 ATER 7.3 ACRES Lake Denver, except for specific coli water no longer LAKE listings in the other subbasins of threatened the South Platte River and in Segments 17a and 17b..

Lakes and reservoirs in watersheds tributary to the Upper South Platte River and Applicable WQS FRESHW Dissolved Harvey within the City and County of attained; threatened COSPUS23_0610 ATER 5.8 ACRES oxygen Lake Denver, except for specific water no longer LAKE saturation listings in the other subbasins of threatened the South Platte River and in Segments 17a and 17b..

All tributaries to the Colorado | River, including all wetlands, from the outlet of Lake Granby to the confluence with the Applicable WQS Ranch Temperature COUCUC04_6101 Roaring Fork River, which are CREEK 12.8 MILES attained; original Creek , water on National Forest lands, except listing in error. for those tributaries included in Segments 1 and 2, and specific listi

and Assessment Report, AppendixC Integrated QualityWater Monitoring

7

Appendix D is the APPENDIX D 303(d) list of impaired

waterbodies and list

of monitoring and

evaluation streams.

Roaring Fork River at Aspen Glen

Colorado’s Clean Water Act Monitoring & 303(d) WBID Segment Description Portion Section 303(d) Evaluation Priority Impairment Parameter(s)

COAR Arkansas River Basin

Fountain Creek and tributaries COARFO01a all E. coli H above Monument Creek

Fountain Creek, Monument Creek COARFO02a all Fe(Trec) E. coli H to Hwy 47

Fountain Creek from Hwy 47 to the COARFO02b all E.coli (May-October) H Arkansas River

All tribs to Fountain Creek, which COARFO04 are not on National Forest or Air all E.coli H Force Academy Land

All tribs to Fountain Creek, which

COARFO04 are not on National Forest or Air Sand Creek Aquatic Life

| Force Academy Land

D

Monument Creek from National COARFO06 All (for E. coli) E.coli (May-October) H

Forest to Fountain Creek Appendix

Pikeview Reservoir, Willow Springs Willow Springs Aquatic Life Use (PCE COARFO07a M Ponds #1 and #2 Ponds #1 & #2 FCA)

Arkansas River, Fountain Creek to COARLA01a all Se, SO L Colorado Canal headgate 4

Arkansas River, Colorado Canal COARLA01b all Se L headgate to John Martin Reservoir

Arkansas River, John Martin COARLA01c all Se, U L Reservoir to stateline

Apishapa River, Timpas Creek, Apishapa River, COARLA04 Se L Lorencito Canyon Timpas Creek

Apishapa River, Timpas Creek, COARLA04 Timpas Creek Fe(Trec) H

Lorencito Canyon Integrated QualityWater Monitoring and Assessment Report,

1 Colorado’s Clean Water Act Monitoring & 303(d) WBID Segment Description Portion Section 303(d) Evaluation Priority Impairment Parameter(s)

Aquatic Life Use (Hg Trinidad Reservoir, Long Canyon Trinidad COARLA05b Fish Tissue), D.O. H Reservoir, and Lake Dorothey Reservoir (Temperature)

Purgatoire River, I-25 to Arkansas COARLA07 all Sediment Se L River

Mainstem of Adobe Creek and COARLA09a all Se L Gageby Creek…

Mainstem of Adobe Creek and COARLA09a Horse Creek Fe(Trec) H Gageby Creek…

Mainstem of Adobe Creek and COARLA09a Adobe Creek E. coli H Gageby Creek…

Apache Creek, Breckenridge Creek, Little Horse Creek, Bob Creek, COARLA09b all Se L

Wildhorse Creek, Wolf Creek, Big |

Sandy Creek

Rule Creek, Muddy Creek, Caddoa As specified to Zn Fe(Trec), Se COARLA09c L Creek, Clay Creek, Cat Creek… right (Rule Creek) (Chicosa Creek)

Two Buttes Res., Two Buttes Pond, Hasty Lake, Holbrook Res., Adobe Creek Burchfield Lake, Nee-Skah (Queens) COARLA10 Res., Nee Se L Res., Adobe Creek Res., Neeso Pah Gronda Res Res., Nee Nosha Res., Nee Gronda Res.

COARLA11 John Martin Reservoir all Se L

COARLA12 Lake Henry, Lake Meredith all Se L

COARMA04a Wildhorse Creek all NO2 E. coli, Se H/L Integrated QualityWater Monitoring and Assessment Report, AppendixD

2 Colorado’s Clean Water Act Monitoring & 303(d) WBID Segment Description Portion Section 303(d) Evaluation Priority Impairment Parameter(s)

St. Charles River and tributaries, COARMA06 all U Se L CF&I diversion to Arkansas River

Greenhorn Creek, including all tributiaries, from source to COARMA07 Greenhorn Highline Diversion Dam; all Cu, Zn Graneros Creek; North Muddy Creek

Greenhorn Creek, including tributaries, from Greenhorn COARMA09 all Se Highline Diversion Dam to the St. Charles River

COARMA10 Sixmile Creek all Fe(Trec), Se L

Huerfano River, from Muddy Creek COARMA12 all Se L

to the Arkansas River

|

D Cucharas River, from Walsenburg COARMA14 PWS diversion to the outlet of all Se L

Cucharas Reservoir Appendix

Huajatolla Reservoir, Diagre Reservoir, Walsenburg Lower Aquatic Life Use (Hg COARMA16 Horseshoe Lake H Town Lake, Horseshoe Lake and Fish Tissue) Martin Lake (Ohem Lake)

COARMA18a Boggs Creek all Se, Zn, U H

Lake Fork below All tributaries to the Arkansas River Sugarloaf Dam from the source to immediately to the COARUA05 Aquatic Life below the confluence with Browns confluence with Creek the Arkansas River

Iowa Gulch from ASARCO water COARUA08b supply intake to Paddock #1 Ditch all Cd, Pb, Zn M

(Iowa Ditch) Integrated QualityWater Monitoring and Assessment Report,

3 Colorado’s Clean Water Act Monitoring & 303(d) WBID Segment Description Portion Section 303(d) Evaluation Priority Impairment Parameter(s)

Mainstem of Lake Creek and all all, excluding tributaries, lakes and reservoirs from COARUA10 Twin Lakes pH, D.O. H source to Arkansas River (including Reservoir Twin Lakes Reservoir)

Mainstem of Lake Creek and all tributaries, lakes and reservoirs from COARUA10 Twin Lake West Cu H source to Arkansas River (including Twin Lakes Reservoir)

Tributaries to the Arkansas River, Aquatic Life Use COARUA14b from Pueblo Reservoir to Colorado Teller Reservoir (Hg Fish Tissue) Canal headgate

Grape Creek including De Weese Res., Texas, Badger, Hayden, De Weese COARUA15 Hamilton, Stout and Big D.O. H Reservoir Cottonwood Creeks, Newland

Creek

|

North Fork Wilson Creek Fourmile Creek and tributaries, COARUA20 below As Cripple Creek to Arkansas River Independence Mine

Mainstem of Cripple Creek from the source to a point 1.5 miles upstream Aquatic Life COARUA21a all L of the confluence with Fourmile (provisional) Creek.

Mainstem of Eightmile Creek, including all tributaries, wetlands, Brush Hollow Aquatic Life Use (Hg COARUA27 lake and reservoirs, from the source H Reservoir Fish Tissue), D.O. to the mouth of Phantom Canyon; Brush Hollow Reservoir

COGU Gunnison River Basin Integrated QualityWater Monitoring and Assessment Report, AppendixD

4 Colorado’s Clean Water Act Monitoring & 303(d) WBID Segment Description Portion Section 303(d) Evaluation Priority Impairment Parameter(s)

Gunnison River, Uncompahgre COGULG02 all Sediment E. coli H River to Colorado River

All tributaries to the Gunnison River which are on national forest lands Eggleston COGULG03 from the outlet of Crystal Reservoir pH, Zn, Fe(Trec) H Reservoir to the confluence with the Colorado River,

Tributaries to Gunnison River, COGULG04a Callow Creek SO , E. coli Crystal Reservoir to Colorado River 4

Tributaries to Gunnison River, Cummings COGULG04a SO Crystal Reservoir to Colorado River Gulch 4

Whitewater Creekfrom Tributaries to Gunnison River, below Brandon COGULG04a SO4, Mn (WS) L

| Crystal Reservoir to Colorado River Ditch to

D confluence with Gunnison River

Appendix Tributaries to Gunnison River, COGULG04a Wells Gulch pH Crystal Reservoir to Colorado River

Tributaries to Gunnison River, Peach Valley COGULG04a Fe(Trec), SO Crystal Reservoir to Colorado River Creek 4

All lakes and reservoirs tributary to the Gunnison River and not on

COGULG04b national forest lands from the outlet Kannah Creek SO4 of Crystal Reservoir to the Colorado River

All lakes and reservoirs tributary to the Gunnison River and not on Jatz COGULG04b national forest lands from the outlet Se Bottomlands of Crystal Reservoir to the Colorado

River Integrated QualityWater Monitoring and Assessment Report,

5 Colorado’s Clean Water Act Monitoring & 303(d) WBID Segment Description Portion Section 303(d) Evaluation Priority Impairment Parameter(s)

Surface, Ward, Tongue, Youngs, COGULG07 Tongue Creek Se, Fe(Trec) M and Kiser Creeks not on USFS land

Surface, Ward, Tongue, Youngs, COGULG07 Ward Creek Se and Kiser Creeks not on USFS land

Surface, Ward, Tongue, Youngs, COGULG07 Surface Creek Pb and Kiser Creeks not on USFS land

COGULG09 Fruitgrowers Reservoir all D.O. H

COGULG11a Tributaries to the Smith Fork Lunch Creek sediment

All tributaries to the Smith Fork COGULG12 which are not on national forest Muddy Creek E. coli

lands

|

COGULG13 Crawford Reservoir all D.O. (Temperature) H

All tributaries to the North Fork of the Gunnison River Muddy Creek to Coal Creek; all tributaries to the East Muddy COGUNF04 Pb, Se Fe(Trec) H North Fork of the Gunnison Creek including the Grand Mesa Lakes which are on national forest lands

All tributaries to the North Fork of the Gunnison River Muddy Creek to Coal Creek; all tributaries to the E. coli (May- COGUNF04 Muddy Creek North Fork of the Gunnison Oct) including the Grand Mesa Lakes

which are on national forest lands Integrated QualityWater Monitoring and Assessment Report, AppendixD

6 Colorado’s Clean Water Act Monitoring & 303(d) WBID Segment Description Portion Section 303(d) Evaluation Priority Impairment Parameter(s)

All tributaries to the North Fork of the Gunnison River Muddy Creek to Coal Creek; all tributaries to the COGUNF04 Island Reservoir pH, Zn North Fork of the Gunnison including the Grand Mesa Lakes which are on national forest lands

Unnamed tributary to Tributaries to N. Fork of Gunnison COGUNF06a North Fork Se River not on USFS property Gunnsion River near Hotchkiss

Coal Gulch, Tributaries to the North Fork of the Hawksnest COGUNF06a Fe(Trec) Gunnison not on USFS lands Creek, Gribble Gulch

Bear Creek, Reynolds Creek, Bell

|

D Creek, McDonald Creek, Cottonwood Creek, Love Gulch, Cow Creek, Dever Creek, German Cottonwood Fe(Trec),

Appendix COGUNF06b Creek, Miller Creek, Stevens Gulch, Creek Mn(WS), SO Big Gulch, Stingley Gulch and Alum 4 Gulch not on national forest lands from the source to the North Fork of the Gunnison River

Bear Creek, Reynolds Creek, Bell Creek, McDonald Creek, Cottonwood Creek, Love Gulch, Cow Creek, Dever Creek, German

COGUNF06b Creek, Miller Creek, Stevens Gulch, Alum Gulch Fe(Trec) SO4 M Big Gulch, Stingley Gulch and Alum Gulch not on national forest lands from the source to the North Fork of the Gunnison River

COGUNF07 Paonia Reservoir all Zn Integrated QualityWater Monitoring and Assessment Report,

7 Colorado’s Clean Water Act Monitoring & 303(d) WBID Segment Description Portion Section 303(d) Evaluation Priority Impairment Parameter(s)

Tributaries to the San Miguel River COGUSM02 Bear Creek Pb Cd, Zn(sc) H from the source to Leopard Creek

Tributaries to the San Miguel River COGUSM02 Cornet Creek Pb from the source to Leopard Creek

Howard Fork Tributaries to the San Miguel River COGUSM02 above Swamp pH, D.O. H from the source to Leopard Creek Canyon

Mainstem of the San Miguel River COGUSM03b Marshall Creek to South Fork San all Pb Miguel River.

From South Mainstem of the San Miguel River Fork San Miguel COGUSM04a from the South Fork of the San to confluence Pb

Miguel to below the CC ditch. with Leopard

Creek

|

Ingram Creek, source to San Miguel COGUSM06a all Mn, Cu River

Marshall Creek, source to San COGUSM06b all Cu Miguel River

Mainstem of Howard Fork and COGUSM07a tributaries Swamp Gulch the South Chapman Creek Fe(Trec) Fork of the San Miguel.

Mainstem of Howard Fork and COGUSM07a tributaries Swamp Gulch the South Iron Bog Creek pH, D.O. Fork of the San Miguel.

Mainstem of South Fork of San COGUSM08 Miguel River from the Howard and all Mn(WS)

Lake Forks to the San Miguel River. Integrated QualityWater Monitoring and Assessment Report, AppendixD

8 Colorado’s Clean Water Act Monitoring & 303(d) WBID Segment Description Portion Section 303(d) Evaluation Priority Impairment Parameter(s)

Mainstem of Naturita Creek from the Uncompahgre National Forest boundary to its confluence with the COGUSM10 San Miguel River, and Gurley Naturita Creek D.O., E. coli Reservoir; Tabeguache Creek from its source to the confluence with San Miguel River.

West Fork of Naturita Creek, Miramonte Reservoir, the mainstem of Beaver, Horsefly and Saltado Miramonte COGUSM11 Creeks from the Uncompahgre D.O. (Temperature) H Reservoir National Forest boundary to their confluence with the San Miguel River.

All tributaries to the San Miguel COGUSM12 River from the confluence of Mesa Creek Se

Leopard Creek to the Dolores

|

D All tributaries to the San Miguel Calamity Draw, COGUSM12 River from the confluence of D.O. Specie Creek

Appendix Leopard Creek to the Dolores

All tributaries to the San Miguel Aquatic Life COGUSM12 River from the confluence of Maverick Draw L (provisional) Leopard Creek to the Dolores

Mainstem of the Taylor River from COGUUG04 the source to the confluence with Taylor River Pb the Gunnison River

Cement Creek and all its tributaries and all lakes, reservoirs, and Aquatic Life COGUUG06b Cement Creek L wetlands in the East River Drainage (provisional) tributary to Segment 6a.

Slate River from source to Coal Below Oh-Be- COGUUG07 Zn(sculpin) H

Creek Joyful Creek Integrated QualityWater Monitoring and Assessment Report,

9 Colorado’s Clean Water Act Monitoring & 303(d) WBID Segment Description Portion Section 303(d) Evaluation Priority Impairment Parameter(s)

Slate River, Coal Creek to East COGUUG08 all Aquatic Life Cd, Zn H River

COGUUG09 All tributaries to the Slate River Coal Creek As H

Oh-Be-Joyful Creek and tributaries COGUUG10 all Cd, Cu, Pb, Zn H from wilderness to Slate River

Oh-Be-Joyful Creek and tributaries COGUUG10 Redwell Creek pH from wilderness to Slate River

Coal Creek from Elk Creek to COGUUG11 Crested Butte water supply intake, Elk Creek Cd, Pb, Zn, As H plus Elk Creek

Coal Creek from Elk Creek to COGUUG11 Crested Butte water supply intake, Coal Creek Cd, Zn, As, Mn(WS) H

plus Elk Creek

|

Coal Creek and tributaries from COGUUG12 Crested Butte water supply intake to Coal Creek Cd, Zn, Cu H Slate River

Tributaries to the Gunnison River from the confluence of the East and Mn (WS), Fe Aquatic Life COGUUG15 S. Beaver Creek L Taylor Rivers to the inlet of Blue (Dis), Fe(Trec), (provisional) Mesa Reservoir

Ohio Creek and tributaries source to COGUUG16 Ohio Creek E. coli Gunnison River

Antelope Creek and tributaries Mn (WS), E. COGUUG17 all source to Gunnison River coli

Mainstem of Cochetopa Creek and tributaries, from the source to a COGUUG23 Stewart Creek Fe(Trec) point immediately below the

confluence with West Pass Creek Integrated QualityWater Monitoring and Assessment Report, AppendixD

10 Colorado’s Clean Water Act Monitoring & 303(d) WBID Segment Description Portion Section 303(d) Evaluation Priority Impairment Parameter(s)

Mainstem of Cochetopa Creek and tributaries, from the source to a Cochetopa COGUUG23 Fe(Dis) point immediately below the Creek confluence with West Pass Creek

Cochetopa Creek from Forest Road Mainstem of Cochetopa Creek from Aquatic Life COGUUG24 3076/Co. Rd. L West Pass Creek to Tomichi Creek (provisional) 43 to the confluence with Tomichi Creek

All tributaries, from the source, to those waters described in segment 25 including all lakes, reservoirs (including Silver Jack Reservoir), COGUUG26 and wetlands, which are on Blue Creek Cu

Gunnison and Uncompahgre |

National Forest lands or which flow D into or are present within Curecanti

National Recreation Area Appendix Lake Fork of the Gunnison River pH, Cd, Cu, Mn, Zn, COGUUG29a and tributaries from source to Blue Deadman Creek H Se, Fe (Trec), Fe (Dis) Mesa Reservoir

Lake Fork of the Mainstem of the Lake Fork of the Gunnison River Mn (WS), Aquatic Life COGUUG29a Gunnison and tributaries from the H between Cooper (provisional) source to Blue Mesa Reservoir and Silver Creek

COGUUG31 Palmetto Gulch all Cu, Ag

North Fork of Henson Creek and COGUUG32 tributaries from source to Henson all Mn (WS) L

Creek Integrated QualityWater Monitoring and Assessment Report,

11 Colorado’s Clean Water Act Monitoring & 303(d) WBID Segment Description Portion Section 303(d) Evaluation Priority Impairment Parameter(s)

Mainstem of the Uncompahgre River from the source at Como Lake COGUUN02 to a point immediately above the all Pb Mn (WS) L confluence with Red Mountain Creek.

COGUUN03b Ridgway Reservoir all Pb, Zn

Uncompahgre River, HWY 90 to La COGUUN04a all sediment Salle Road

Uncompahgre River, La Salle Road COGUUN04b all sediment to Confluence Park

Uncompahgre River, Confluence COGUUN04c all Sediment, Pb Fe(Trec) H Park to Gunnison River

Mainstem of Red Mountain Creek | from the source to immediately COGUUN06a all Ag, Cu M above the confluence with the East Fork of Red Mountain Creek.

Gray Copper Gulch from source to COGUUN07 all Fe(Trec), pH Cu M Red Mountain Creek

Mineral Creek, source to COGUUN08 all Cu, Zn Uncompahgre River

Canyon Creek, Imogene Creek, COGUUN09 Sneffels Creek Cd, Zn H Sneffels Creek

Canyon Creek, Imogene Creek, COGUUN09 Canyon Creek Pb Sneffels Creek

All tributaries to the Uncompahgre COGUUN10 River from Dexter Creek to the Alkali Creek Se

South Canal Integrated QualityWater Monitoring and Assessment Report, AppendixD

12 Colorado’s Clean Water Act Monitoring & 303(d) WBID Segment Description Portion Section 303(d) Evaluation Priority Impairment Parameter(s)

Coal, Dallas, Cow, Billy, Onion, Billy Creek, COGUUN11 Beaton, Beaver and Pleasant Valley Se Onion Creek Creeks

Coal, Dallas, Cow, Billy, Onion, Aquatic Life COGUUN11 Beaton, Beaver and Pleasant Valley Deer Creek L (provisional) Creeks

Coal, Dallas, Cow, Billy, Onion,

COGUUN11 Beaton, Beaver and Pleasant Valley Cow Creek SO4 Creeks

Dry Creek, Tributaries to Uncompahgre River, COGUUN12 Loutzenhizer Fe(Trec) H South Canal to Gunnison River Arroyo

COGUUN14 Sweitzer Lake all Se* H

|

D Dry Creek from East and West Dry Creek COGUUN15b sediment Forks to Coalbank Canyon Creek Watershed

Appendix Dolores River from Little Gypsum COGULD02 Valley bridge to Colorado/Utah all E. coli Fe(Trec) H border

All tributaries to the Dolores River Disappointment COGULD03a from the bridge at Bradfield Ranch Se, E. coli Creek to the Colorado/Utah border.

Mainstem of West Paradox Creek from the source to the confluence with the Dolores River. Mainstem West Paradox COGULD04 E. coli, Fe(Trec) and all tributaries to Blue Creek Creek from the source to the confluence

with the Dolores River. Integrated QualityWater Monitoring and Assessment Report,

13 Colorado’s Clean Water Act Monitoring & 303(d) WBID Segment Description Portion Section 303(d) Evaluation Priority Impairment Parameter(s)

Mainstem of West Creek from the source to the confluence with the Dolores River; Roc Creek; La Sal COGULD05 Roc Creek E. coli Cu, Fe(Trec) H Creek and Mesa Creek from their sources to their confluences with Dolores River.

COLC Lower Colorado River Basin

Colorado River, Roaring Fork River COLCLC01 all sediment to Rifle Creek

Colorado River, Rifle Creek to COLCLC02a all sediment Rapid Creek

Colorado River, Rapid Creek to Humphrey COLCLC02b Se M

Gunnison River Backwater area

|

Colorado River, Rapid Creek to COLCLC02b all Sediment Gunnison River

Tributaries to Colorado River, COLCLC04a Roaring Fork to Parachute Creek all Se M except for specific segments

Tributaries to Colorado River, E.coli, Cu, COLCLC04a Roaring Fork to Parachute Creek Alkali Creek Fe(Trec), Pb, Zn Exc. specific segments

COLCLC04b South Canyon Hot Springs all D.O., Pb

Cu, Se, E. coli COLCLC04c South Canyon Creek all

(May-Oct) Integrated QualityWater Monitoring and Assessment Report, AppendixD

14 Colorado’s Clean Water Act Monitoring & 303(d) WBID Segment Description Portion Section 303(d) Evaluation Priority Impairment Parameter(s)

East Rifle Creek, West Rifle Creek and Rifle Creek, including West Rifle COLCLC10 Fe(Trec) tributaries from Rifle Gap to the Creek Colorado River

East Rifle Creek, West Rifle Creek and Rifle Creek, including COLCLC10 all E.coli Se L tributaries from Rifle Gap to the Colorado River

Tributaries to Colorado River from COLCLC13b Government Highline Canal Salt Creek sediment L Diversion to Salt Creek

Tributaries to Colorado River from COLCLC13b Government Highline Canal all Se M

Diversion to Salt Creek

Tributaries to Colorado River from | Adobe Creek, D COLCLC13b Government Highline Canal E.coli, Fe(Trec) H Leach Creek Diversion to Salt Creek

Appendix Tributaries to Colorado River, COLCLC13b Government Highline Canal to Salt Indian Wash Fe(Trec) Creek Exc. specific segments

COLCLC13c Walker Wildlife Area Ponds all Se M

Clear Creek from Tom Creek to Roan Creek. Roan Creek, including COLCLC14b all E.coli, Fe(Trec) tributaries from Clear Creek to Kimball Creek

Mainstem of Roan Creek including COLCLC14c all tributaries from Kimball Creek to Dry Fork Se L

the Colorado River Integrated QualityWater Monitoring and Assessment Report,

15 Colorado’s Clean Water Act Monitoring & 303(d) WBID Segment Description Portion Section 303(d) Evaluation Priority Impairment Parameter(s)

Plateau Creek, including tributaries from source to Hwy 330 Bridge. Kimball Creek, Grove Creek, Big COLCLC15 all Fe(Trec), Se Creek, Cottonwood Creek, Bull Creek, Spring Creek, Coon Creek and Mesa Creek.

Lakes and reservoirs tributary to the Se Se See specifics to COLCLC19 Colorado River, Parachute Creek to H the right. (Maggio Pond, (West Pond Orchard the Colorado/Utah border. Peters Ponds 1, Mesa Wildlife Area) 2, 3, & 4)

Rifle Gap Reservoir, Harvey Gap Rifle Gap Aquatic Life Use (Hg COLCLC20 H Reservoir and Vega Reservoir Reservoir Fish Tissue)

Yampa River, Elkhead Creek to

COLCLY02 all sediment Fe(Trec) H |

Green River

Milk Creek and tributaries from CR Cu, Fe(Trec), COLCLY03c Stinking Gulch 15 to the Yampa Se, Zn

Good Spring Creek above Wilson COLCLY03e Wilson Creek Se Reservoir

Fortification Creek from North and COLCLY05 all Se L South Fork to the Yampa River

Little Bear Creek, including all COLCLY07 tributaries from source to Dry all Cu, Zn Creek

Little Snake River from Power Wash COLCLY16 all sediment to the Yampa River

Slater Creek, including tributaries E. coli, Fe COLCLY18 all

from source to Second Creek (Trec),Se Integrated QualityWater Monitoring and Assessment Report, AppendixD

16 Colorado’s Clean Water Act Monitoring & 303(d) WBID Segment Description Portion Section 303(d) Evaluation Priority Impairment Parameter(s)

Mainstem of Vermillion Creek, including all tributaries and wetlands, from the Talamantes Aquatic Life COLCLY22a L Colorado/Wyoming border to a Creek (provisional) point just below the confluence with Talamantes Creek.

Vermillion Creek from Hwy 318 to COLCLY22c all E.coli, Fe(Trec) Green River

Mainstem of the White River from a point above the confluence with White River, COLCWH07 Miller Creek to a point immediately Cu blw Meeker above the confluence with Piceance Creek

Tributaries to the White River from North and South Forks to Piceance

Strawberry

COLCWH09a Creek not within the boundary of Cu, Zn |

Creek

D national forest lands except segments 9b and 10b.

Appendix Sulfur Creek and tributaries from Source to White River. Flag Creek COLCWH09d all Se L and tributaries from the East Fork of Flag Creek to the White River

Mainstem of Big Beaver Creek, Miller Creek, and North Elk Creek, including tributaries, from their boundaries with the national forest COLCWH10b lands to their confluences with the Coal Creek Se White River. Mainstem of Coal Creek, including all tributaries from the source to the confluence with the White River

Rio Blanco COLCWH11 Rio Blanco Reservoir pH H

Reservoir Integrated QualityWater Monitoring and Assessment Report,

17 Colorado’s Clean Water Act Monitoring & 303(d) WBID Segment Description Portion Section 303(d) Evaluation Priority Impairment Parameter(s)

Mainstem of Yellow Creek from the source to the confluence with Barcus COLCWH13b Creek. All tributaries to Yellow Duck Creek Aquatic Life Creek from the source to the White River

Mainstem of Yellow Creek from immediately below the confluence COLCWH13c All Fe (Trec), Aquatic Life L with Barcus Creek to the confluence with the White River.

Mainstem of Piceance Creek from Willow Creek COLCWH14a the source to a point just below the Fe(Trec) H to Hunter Creek confluence with Hunter Creek

Mainstem of Piceance Creek from Ryan Gulch to the confluence with Aquatic Life COLCWH15 the White River. The Dry Fork of Piceance Creek L

(provisional)

Piceance Creek, from Little Reigan | Gulch to Piceance Creek.

All tributaries to Piceance Creek, including all wetlands, lakes and COLCWH16 Ryan Gulch E.coli reservoirs, from the source to the confluence with the White River

Mainstems of Black Sulphur Creek Black Sulphur Aquatic Life COLCWH20 L from the source to Piceance Creek. Creek (provisional)

West Evacuation Tributaries to White River, Douglas COLCWH22 Wash, Douglas sediment L Creek to Colorado/Utah border Creek

Mainstem of East Douglas Creek and West Douglas Creek including all East Douglas COLCWH23 Fe(Trec) tributaries from their sources to the Creek

confluence Integrated QualityWater Monitoring and Assessment Report, AppendixD

18 Colorado’s Clean Water Act Monitoring & 303(d) WBID Segment Description Portion Section 303(d) Evaluation Priority Impairment Parameter(s)

Mainstem of East Douglas Creek and West Douglas Creek including all West Douglas Aquatic Life COLCWH23 L tributaries from their sources to the Creek (provisional) confluence

CORG Rio Grande River Basin

Alamosa River, from source to confl Tribs to lower CORGAL02 pH, Cu, Zn, Fe(Trec) H with Alum Creek Iron Ck

All, except for Alamosa River, from source to the tributaries to CORGAL02 pH, Fe(Trec) confluence with Alum Creek Lower Iron Creek

Alamosa River, from Wightman Above Jasper CORGAL03b Se Cd H

Fork to Fern Creek Creek

|

D Alamosa River, from Ranger Creek CORGAL03d all Al H to Terrace Res.

Appendix CORGAL08 Terrace Reservoir all Fe(Trec) M

La Jara Creek including tributaries, La Jara CORGAL11 wetlands, lakes and reservoirs from D.O. H Reservoir pH source to Hot Creek

Hot Creek from source to La Jara CORGAL13 all Fe(Trec) H Creek

Conejos River including tributaries, Platoro CORGAL14 wetlands, lakes, and reservoirs from pH Reservoir source to Fox Creek

pH, Cu,Cd, Rio Grande, tribs within the Rio CORGAL20 all Fe(Trec), Mn, Grande Forest Zn

La Garita Creek, source to 38 Rd, CORGCB02 La Garita Creek Fe(Trec)

Carnero Creek, source to 42 Rd Integrated QualityWater Monitoring and Assessment Report,

19 Colorado’s Clean Water Act Monitoring & 303(d) WBID Segment Description Portion Section 303(d) Evaluation Priority Impairment Parameter(s)

San Luis Creek, from Piney Creek to Lower San Luis CORGCB05 D.O. San Luis Lake Creek

CORGCB06 San Luis Lake all NH3, Fe(Trec) H

Kerber Creek, source to abv Cocomongo Mill Site, Squirrel Cd, Cu, Zn, CORGCB08 Creek from source to abv Bear Squirrel Creek Fe(Trec) Creek. Brewery Creek from source to Elkhorn Gulch

Rio Grande River, source to Willow South Clear CORGRG02 Fe(Trec), Creek Creek

Rio Grande River, Willow Creek to Del Norte to CORGRG04 Cu H Alamosa County line county line

All tributaries to the Rio Grande |

Cd, Cu, Pb, Mn, CORGRG05 River, abv Willow Creek to Del Nelson Creek Zn, pH Norte

Nelson Creek, West Willow West Willow Creek, East Willow Creek below CORGRG07 Creek, Willow Creek and pH H Nelson Creek to tributaries East Willow Creek

Mainstem of the Rio Grande from the Rio Grande/Alamosa County Aquatic Life CORGRG12 all L line to the Old State Bridge east of (provisional) Lobatos (Conejos County Road G).

Rio Grande River, Conejos County CORGRG13 Road G to Colorado/New Mexico all sediment border

CORGRG27 Smith Reservoir Smith Reservoir pH Integrated QualityWater Monitoring and Assessment Report, AppendixD

20 Colorado’s Clean Water Act Monitoring & 303(d) WBID Segment Description Portion Section 303(d) Evaluation Priority Impairment Parameter(s)

Rito Seco, from source to Salazar Upper Rito Seco CORGRG28 E.coli H Reservoir blw Battle Mtn

Culebra Creek, including all tributaries, lakes, and reservoirs Sanchez CORGRG30 D.O. H from HWY 159 to the Reservoir Colorado/New Mexico border

COSJ San Juan River Basin

Arrastra Gulch including all lakes, tributaries, and wetlands from the COSJAF03c all Pb Cd, Zn M source to the confluence with the Animas River.

Mainstem of the Animas River from a point immediately above the

COSJAF04a confluence with Mineral Creek to a all Al(Trec) M

point immediately above the

|

D confluence with Deer Park Creek.

Mainstem of the Animas River,

Appendix including wetlands, from Bakers COSJAF05a all Mn(WS) L Bridge to the Southern Ute Indian Reservation boundary.

All tributaries to the Animas River, from a point immediately above the confluence with Elk Cr. to a point immediately below the confluence with Hermosa Cr. All tributaries to Electra COSJAF12a Ag, Zn the Florida from the source to the Reservoir outlet of Lemon Reservoir Mainstems of True, Red and Shearer Creeks from their sources to their confluences with the Florida River.

Mainstem of Junction Creek including all tributaries, from U.S. COSJAF13a Junction Creek Ag, E. coli Forest Boundary to confluence with

Animas River. Integrated QualityWater Monitoring and Assessment Report,

21 Colorado’s Clean Water Act Monitoring & 303(d) WBID Segment Description Portion Section 303(d) Evaluation Priority Impairment Parameter(s)

McPhee Reservoir and Summit McPhee Aquatic Life Use(Hg* COSJDO04b H Reservoir Reservoir Fish Tissue)

All tributaries to the Dolores River, from the confluence of the West Dolores River, to the bridge at Lost Canyon COSJDO11 E. coli Bradfield Ranch (Forest Route 505, Creek near Montezuma/Dolores County Line

Mainstem of the La Plata River, COSJLP01 from the source to the Hay Gulch All Ag H diversion south of Hesperus.

All Tributaries to the La Plata River COSJLP03a from Hay Gulch to the Southern Ute Cherry Creek Cu Fe(Trec) H

Indian reservation boundary

Mancos River and tributaries above | COSJLP04a E. Mancos River Pb Cu,D.O., Mn (WS) H HWY 160

Mancos River and tributaries above COSJLP04a Mancos River Cu, Pb D.O., H HWY 160

Mainstem of McElmo Creek from the source to the Colorado/Utah COSJLP07a border; Mainstem of Yellow Jacket McElmo Creek Fe-Trec, E. coli H Creek from the source to the confluence with McElmo Creek.

COSJLP08a Tributaries to McElmo Creek Mud Creek Se M

COSJLP08a Tributaries to McElmo Creek Hartman Draw Fe(Trec)

COSJLP08a Tributaries to McElmo Creek Trail Canyon Fe(Trec) M

COSJLP08a Tributaries to McElmo Creek all E. coli Integrated QualityWater Monitoring and Assessment Report, AppendixD

22 Colorado’s Clean Water Act Monitoring & 303(d) WBID Segment Description Portion Section 303(d) Evaluation Priority Impairment Parameter(s)

Narraguinnep Narraguinnep, Puett, and Totten Reservoir, Aquatic Life Use(Hg* COSJLP11 H Reservoir Totten Fish Tissue) Reservoir

All tributaries to the Piedra River, including all wetlands, lakes and reservoirs, from the boundary of the Williams Creek pH, Zn, COSJPI05 Weminuche Wilderness Area to a Reservoir Fe(Trec), D.O. point immediately below the confluence with Devil Creek. Williams Creek Reservoir.

All tributaries to the Piedra River, from the boundary of the COSJPI05 Weminuche Wilderness Area to the Williams Creek pH, Cu confluence with Devil Creek.

Williams Creek Reservoir.

|

D Stollsteimer Sediment, E. Creek above COSJPI06a Tributaries to the Piedra River coli, Fe(Trec), Southern Ute SO4

Appendix Boundary

Vallecito Aquatic Life Use (Hg COSJPN03 Vallecito Reservoir H Reservoir Fish Tissue)

Mainstem of the Navajo River and the Little Navajo River from the COSJSJ01 boundary of the South San Juan Navajo River E. coli Wilderness Area to the Colorado/New Mexico border

Little Navajo River, including COSJSJ03 tributaries from the San Juan-Chama all E.coli

diversion to the San Juan River Integrated QualityWater Monitoring and Assessment Report,

23 Colorado’s Clean Water Act Monitoring & 303(d) WBID Segment Description Portion Section 303(d) Evaluation Priority Impairment Parameter(s)

Mainstem of the San Juan River and the East Fork and West Fork of the San Juan River, from the boundary COSJSJ05 Mainstem Pb of the Weminuche Wilderness Area (West Fork) and the source (East Fork) to Fourmile Creek

San Juan River from Fourmile Creek to Southern Ute Indian Reservation. COSJSJ06a San Juan River Pb, Cu Mill Creek from source to San Juan River. Echo Canyon Reservoir.

San Juan River from Fourmile Creek D.O. (Temperature) to Southern Ute Indian Reservation. Echo Canyon COSJSJ06a pH H Mill Creek from source to San Juan Reservoir Aquatic Life Use (Hg River. Echo Canyon Reservoir. Fish Tissue)

Navajo Aquatic Life Use

COSJSJ08 Navajo Reservoir

Reservoir (Hg Fish Tissue)

|

Mainstem of the Rio Blanco from the boundary of South San Juan COSJSJ09a Ag, Pb Wilderness Area to the Southern Ute Indian Reservation boundary,

Mainstem of the Rito Blanco River COSJSJ10 from Echo Ditch to the confluence E. coli with the Rio Blanco River.

COSP South Platte River Basin

Mainstem of Big Dry Creek, including all tributaries, lakes, E. coli, COSPBD01 reservoirs and wetlands, from the all H/L source to the confluence with the Se (4/1 thru 10/31)

South Platte River Integrated QualityWater Monitoring and Assessment Report, AppendixD

24 Colorado’s Clean Water Act Monitoring & 303(d) WBID Segment Description Portion Section 303(d) Evaluation Priority Impairment Parameter(s)

Mainstem of Bear Creek from the Witter Gulch to Temperature, boundary of the Mt. Evans COSPBE01a inlet of Aquatic Life H Wilderness area to the inlet of Evergreen Lake (provisional) Evergreen Lake.

COSPBE01c Bear Creek Reservoir all Chl-a, phosphorus H

Mainstem of Bear Creek from the COSPBE01e outlet of Evergreen Lake to the All Aquatic Life Harriman Ditch.

From the outlet Mainstem of Bear Creek from the of Evergreen COSPBE01e outlet of Evergreen Lake to the Lake to Temperature H

Harriman Ditch. Kerr/Swede |

Gulch D

Below Kipling Bear Creek below Bear Creek COSPBE02 Parkway (CO Aquatic Life E.coli (May-Oct) H

Appendix Reservoir to South Platte River 390)

Swede, Kerr, Sawmill, Troublesome Swede/Kerr COSPBE05 and Cold Springs Gulches and Cub E.coli L Gulch Creek

All tribs to Boulder Creek within the COSPBO01 all Pb, Zn Area

Mainstem of Boulder Creek,from the boundary of the Indian Peaks COSPBO02a Wilderness Area to a point all Cd, Cu immediately below the confluence with North Boulder Creek

Boulder Creek, from below the confluence with North Boulder COSPBO02b all Cd, Cu Creek to above the confluence with

South Boulder Creek Integrated QualityWater Monitoring and Assessment Report,

25 Colorado’s Clean Water Act Monitoring & 303(d) WBID Segment Description Portion Section 303(d) Evaluation Priority Impairment Parameter(s)

Mainstem of Middle Boulder Creek COSPBO03 from source to the outlet of Barker all Cd, Cu Reservoir

Coal Creek, HWY 36 to Boulder COSPBO07b all Aquatic Life E. coli H Creek

All tribs to South Boulder Creek and COSPBO08 Rock Creek E. coli, Se M all tribs to Coal Creek

Cd, As Mainstem of Boulder Creek, from COSPBO09 all South Boulder Creek to Coal Creek

From 107th Mainstem of Boulder Creek, from Street to the Aquatic Life COSPBO09 L South Boulder Creek to Coal Creek confluence with (provisional)

Coal Creek

Boulder Creek, Coal Creek to St. Aquatic Life, | COSPBO10 all E. coli H Vrain Creek Cd

Lakes and reservoirs tributary to Barker COSPBO14 Boulder Creek from source to South Cd, Cu Reservoir Boulder Creek.

South Boulder Creek and tributaries Aquatic Life COSPBO15 from source to outlet of Gross Gross Reservoir Use (Hg Fish Reservoir Tissue)

Mainstem of the Big Thompson River, including all tributaries and COSPBT01 All Cu H wetlands, within Rocky Mountain National Park.

Big Thompson River and tribs, Fish Creek COSPBT02 RMNP to Home Supply Canal below Marys pH H diversion Lake

Big Thompson River and tribs, Cu, Cd, Zn, COSPBT02 RMNP to Home Supply Canal all Sulfide H temperature

diversion Integrated QualityWater Monitoring and Assessment Report, AppendixD

26 Colorado’s Clean Water Act Monitoring & 303(d) WBID Segment Description Portion Section 303(d) Evaluation Priority Impairment Parameter(s)

Mainstem of the Big Thompson River from the COSPBT03 Home Supply Canal All Cu M diversion to the Big Barnes Ditch diversion.

Mainstem of the Big Thompson from COSPBT04a the Big Barnes Ditch diversion of the All Se M Greeley-Loveland Canal diversion.

Big Thompson River, Greeley- COSPBT04b all Se M Loveland Canal diversion to CR11H

Big Thompson River, I-25 to S. COSPBT05 all Se L Platte River

All tributaries to the Big Thompson River, from Home Supply Canal to COSPBT06 All Cu M the confluence with the South Platte

River.

|

D All Tribs to the Big Thompson River, from Home Supply Canal to COSPBT06 Dry Creek E. Coli the confluence with the South Platte Appendix River.

Mainstem of the North Fork of the North Fork of COSPBT07 Big Thompson from RMNP to Cu H Big Thompson confluence with Big Thompson

Mainstem of the Little Thompson COSPBT08 River, from source to the Culver All Temperature, D.O H Ditch diversion.

Mainstem of the Little Thompson From source to

COSPBT08 River, from source to the Culver St. Vrain Supply SO4 H Ditch diversion. Canal

Cu, Se, E. coli (May- Little Thompson River, Culver COSPBT09 all October), Aquatic Life M/L/H/M Ditch to Big Thompson River

Use Integrated QualityWater Monitoring and Assessment Report,

27 Colorado’s Clean Water Act Monitoring & 303(d) WBID Segment Description Portion Section 303(d) Evaluation Priority Impairment Parameter(s)

Tributaries To the Little Thompson COSPBT10 Big Hollow Se L River

Aquatic Life Use (Hg COSPBT11 Carter Lake all H Fish Tissue), As

Lake Loveland, Horseshoe Lake, Aquatic Life Use (Hg COSPBT12 Boyd Lake H Boyd Lake Fish Tissue)

Welch Reservoir, Lonetree Lonetree Aquatic Life Use COSPBT14 Reservoir, Boedecker Lake, Lon Reservoir (Hg Fish Tissue) Hagler Reservoir

Lakes and reservoirs tributary to the COSPBT16 Big Thompson from RMNP to Lake Estes Cu, Pb H Home Supply Canal diversion.

Mainstem of Cherry Creek from

COSPCH03 Cherry Creek Reservoir to the All E.coli, Se H/L |

South Platte.

From Holly Mainstem of Cherry Creek from Street to South COSPCH03 Cherry Creek Reservoir to the Fe(Trec) M Platte South Platte. confluence

Goldsmith Gulch, COSPCH04 Tributaries to Cherry Creek Se L Cottonwood Creek

Lakes and reservoirs in the Cherry COSPCH06 Creek watershed within the City and Lollipop Lake Se D.O. M County of Denver.

Mainstem of Clear Creek, including all tributaries and wetlands, from Kearney Gulch, COSPCL01 Aquatic Life the source to the I-70 bridge above Grizzly Gulch

Silver Plume. Integrated QualityWater Monitoring and Assessment Report, AppendixD

28 Colorado’s Clean Water Act Monitoring & 303(d) WBID Segment Description Portion Section 303(d) Evaluation Priority Impairment Parameter(s)

Mainstem of Clear Creek from COSPCL02a Silver Plume to West Fork Clear All Cd H Creek.

Mainstem of Clear Creek from West COSPCL02b All Cd, Zn H Fork Clear to Mill Creek.

Mainstem of Clear Creek from Mill COSPCL02c All Cd H Creek to Argo Tunnel.

COSPCL03a Mainstem of S. Clear Creek all Cu H

COSPCL03b Leavenworth Creek all Cu M

COSPCL06 West Clear Creek tributaries Mad Creek pH Zn M

COSPCL06 All tributaries to West Clear Creek. Hoop Creek Cd, Pb, Zn

|

D Fall River & tributaries, source to COSPCL09a Fall River Zn, D.O.

Clear Creek Appendix

Fall River & tributaries, source to COSPCL09a Silver Creek Cu, Pb H Clear Creek

Trail Creek & tributaries, source to COSPCL09b all Cd, pH H Clear Creek

Clear Creek, Argo Tunnel to COSPCL11 all Cd H Farmers Highline Canal

N. Clear Creek & tributaries, lowest Mainstem of N. COSPCL13b Cd M water supply intake to Clear Creek Clear Creek

Mainstem of Clear Creek from the From Croke Farmers Highline Canal diversion in Canal Diversion Aquatic Life COSPCL14a L Golden, Colorado to the Denver to McIntyre (provisional)

Water conduit #16 crossing. Street Integrated QualityWater Monitoring and Assessment Report,

29 Colorado’s Clean Water Act Monitoring & 303(d) WBID Segment Description Portion Section 303(d) Evaluation Priority Impairment Parameter(s)

Clear Creek, Denver Water conduit Aquatic Life Use, COSPCL14b all Mn L #16 to Youngfield St. organic sediment,

E. coli (May-October), Clear Creek, Youngfield St. to S. Aquatic Life Use, COSPCL15 all Pb H/L/L Platte River organic sediment, Mn (WS)

COSPCL17a Arvada Reservoir all D.O.(Temperature) H

Mainstem of Ralston Creek, including all tributaries and COSPCL17b all U H wetlands, from the source to the inlet of Arvada Reservoir.

Ralston Creek and tributaries below COSPCL18a Ralston Creek E. coli H

Arvada Reservoir

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Mainstem of the North Fork of the COSPCP06 , including all all Cu tribs from source to Halligan Res.

North Fork of the Cache la Poudre COSPCP07 from Halligan Reservoir to the all Pb, Cd M Cache la Poudre.

All tributaries to the North Fork of COSPCP08 the Cache La Poudre from Halligan all E. coli Reservoir to the Cache La Poudre.

COSPCP09 Rabbit Creek and Lone Pine Creek all Cd, Pb Integrated QualityWater Monitoring and Assessment Report, AppendixD

30 Colorado’s Clean Water Act Monitoring & 303(d) WBID Segment Description Portion Section 303(d) Evaluation Priority Impairment Parameter(s)

Cache la Poudre River, Monroe COSPCP10 all Cu, Temperature M Canal to Shields Street

Mainstem of the Cache la Poudre River from Shields Street in Ft. COSPCP11 Collins to a point all Se L immediately above the confluence with Boxelder Creek.

Cache la Poudre River, Box Elder Se, E. coli (May - COSPCP12 all L/H Creek to S. Platte River October)

All tributaries to the Cache la Poudre River, including all COSPCP13a wetlands, from the Monroe Gravity all Se L Canal to the confluence with the South Platte River.

All tributaries to the Cache la

|

D Poudre River, including all Spring Creek COSPCP13a wetlands, from the Monroe Gravity E.coli, (May-Oct) H and Fossil Creek Canal to the confluence with the

Appendix South Platte River.

Boxelder Creek from source to the COSPCP13b all Se L Cache la Poudre River

Aquatic Life Use (Hg COSPCP14 Horsetooth Reservoir all . H Fish Tissue), Cu, As

Lakes and reservoirs tributary to the North Fork of the Cache la Poudre Seaman COSPCP20 D.O. M from Halligan Reservoir to the Reservoir Cache la Poudre River.

Mainstem of Laramie River from the COSPLA02a all pH

source to the NF boundary. Integrated QualityWater Monitoring and Assessment Report,

31 Colorado’s Clean Water Act Monitoring & 303(d) WBID Segment Description Portion Section 303(d) Evaluation Priority Impairment Parameter(s)

Mainstem of the South Platte from COSPLS01 the Weld/Morgan County line to all Aquatic Life Use Se, Mn M the Colorado/Nebraska border.

Tributaries to S Platte River, Beaver COSPLS02b Creek, Bijou Creek and Kiowa Beaver Creek Se, E. coli H Creek

Jackson, Prewitt, North Sterling, COSPLS03 Jumbo, Riverside, Empire and North Sterling D.O. Vancil Reservoirs

North Sterling, Jackson, Prewitt, North Sterling, Jackson and COSPLS03 Jumbo, Riverside, Empire and Se Jumbo Vancil Reservoirs Reservoirs

Jackson, Prewitt, North Sterling, Jackson

COSPLS03 Jumbo, Riverside, Empire and pH H | Reservoir Vancil Reservoirs

South Platte River from Big Dry COSPMS01a all E.coli H Creek to St. Vrain Creek

South Platte River from St. Vrain COSPMS01b Creek to Weld/Morgan County all Se L Line

Milton COSPMS04 Barr Lake and Milton Reservoir D.O., pH, NH , M/L Reservoir 3

COSPMS04 Barr Lake and Milton Reservoir Barr Lake pH, D.O. M Integrated QualityWater Monitoring and Assessment Report, AppendixD

32 Colorado’s Clean Water Act Monitoring & 303(d) WBID Segment Description Portion Section 303(d) Evaluation Priority Impairment Parameter(s)

All lakes and reservoirs trib to the South Platte River below Big Dry Horse Creek COSPMS07 pH, NH , D.O. L Creek to Weld/Morgan County Reservoir 3 Line

All lakes and reservoirs in watershed

COSPMS07 tributary to the South Platte from Prospect Lake D.O., pH, NH3 M Chatfield to Big Dry Creek.

Mainstem of Arikaree River from COSPRE04 the confluence of the North and all E.coli H South Forks to the Kansas border.

Mainstem of the Black Wolf Creek COSPRE05 from the source to the confluence all E. coli, Se with the Arikaree River.

Mainstem of St. Vrain from Indian

Peaks Wilderness Area and RMNP | COSPSV02a all Zn H D to eastern boundary of Roosevelt Ntl Forest

Appendix St. Vrain Creek, RMNP to Hygiene COSPSV02b all Cu, Temperature H Road

From the confluence with St. Vrain Creek, Hygiene Rd. to S. Left Hand Creek Aquatic Life Use COSPSV03 L Platte River to the (provisional) confluence with Boulder Creek

From Hover St. Vrain Creek, Hygiene Rd. to S. Road to the Aquatic Life COSPSV03 Platte River confluence with Use, Left Hand Creek

Left Hand Creek, from source to (Hwy 72 to COSPSV04a pH, Cu, Zn M

blw confluence with James Creek James Ck); Integrated QualityWater Monitoring and Assessment Report,

33 Colorado’s Clean Water Act Monitoring & 303(d) WBID Segment Description Portion Section 303(d) Evaluation Priority Impairment Parameter(s)

Little James COSPSV04b James Creek, Little James Creek Cu, Pb M Creek

Left Hand Creek from James Creek COSPSV04c all Cu, As H to HWY 36

Mainstem of Left Hand Creek, Upstream including all tributaries and wetlands COSPSV05 Lefthand Feeder Mn (WS) L from Highway 36 to the confluence Canal with St. Vrain Creek.

Mainstem of Left Hand Creek, Downstream including all tributaries and wetlands COSPSV05 Lefthand Feeder Cu M from Highway 36 to the confluence Canal with St. Vrain Creek.

COSPSV06 Tributaries to the St Vrain River Dry Creek E. coli H

|

COSPSV06 Tributaries to the St Vrain River all Se L

All lakes and reservoirs tributary to COSPSV13 Left Hand Creek from Hwy 36 to Lake Thomas D.O. St. Vrain Creek.

Salt Creek d/s Tributaries to S. Platte River, source COSPUS02a of N. Fork, on Temperature to Tarryall Creek USFS Land

Tributaries to S. Platte River, source Twin Creek, on COSPUS02a Temperature to Tarryall Creek USFS Land

S. Fork of S. Tributaries to S. Platte River, Platte below COSPUS02a Aquatic Life headwaters to Tarryall Creek Antero Reservoir

Mosquito Creek from South COSPUS02b Mosquito Creek to the Middle Fork all Cd H

of the South Platte. Integrated QualityWater Monitoring and Assessment Report, AppendixD

34 Colorado’s Clean Water Act Monitoring & 303(d) WBID Segment Description Portion Section 303(d) Evaluation Priority Impairment Parameter(s)

South Mosquito Creek from the source to the confluence with No Name COSPUS02c Mosquito Creek and No Name Cd, Zn H Creek Creek from the source to the confluence with Mosquito Creek

Trout Creek and Tributaries to S.Platte River, COSPUS03 tributaries on Aquatic Life sediment* H Tarryall Creek to N.Fk.S.Platte R USFS property

Tributaries to S.Platte River, COSPUS03 Pine Creek As H Tarryall Creek to N.Fk.S.Platte R

Tributaries to S.Platte River, Pine Creek, on COSPUS03 Tarryall Creek to N. Fk. S. Platte sediment USFS Land River

Tributaries to S.Platte River, COSPUS03 Fourmile Creek Fe(trec), As, Hg H

Tarryall Creek to N.Fk.S.Platte R

|

D Tributaries to S.Platte River, Sugar Creek, on COSPUS03 sediment

Tarryall Creek to N.Fk.S.Platte R USFS Land Appendix

Tributaries to S.Platte River, COSPUS03 Tarryall Creek to N. Fk. S. Platte Hawkins Gulch Cd, Se River

Tributaries to S.Platte River, Aquatic Life COSPUS03 Tarryall Creek to N. Fk. S. Platte Horse Creek D.O., Fe(trec) L (provisional) River

Tributaries to S.Platte River, COSPUS03 Tarryall Creek to N. Fk. S. Platte West Creek As, Hg River

Tributaries to S.Platte River, COSPUS03 Tarryall Creek to N. Fk. S. Platte Goose Creek D.O.

River Integrated QualityWater Monitoring and Assessment Report,

35 Colorado’s Clean Water Act Monitoring & 303(d) WBID Segment Description Portion Section 303(d) Evaluation Priority Impairment Parameter(s)

Tributaries to S.Platte River, Trail and COSPUS03 Tarryall Creek to N. Fk. S. Platte Fe(trec) Wigwam Creeks River

N. Fk. S. Platte River & Tributaries, Hall Valley area COSPUS04 pH H source to S.Platte R to Geneva Ck

Unnamed Gooseberry Gulch and all tributaries Tributary to COSPUS05c from source to confluence with Elk NH M Gooseberry 3 Creek. Creek

South Platte Mainstem of the South Platte River River from from the outlet of Cheesman outlet of COSPUS06a Aquatic Life Reservoir to the inlet of Chatfield Cheesman Reservoir. Reservoir to

Fourmile Creek

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Tributaries to the South Platte from COSPUS07 the North Fork of the South Platte Willow Creek Fe(Trec), Se to the outlet of Chatfield Reservoir.

Mainstem of Bear Creek, including all tributaries COSPUS09 and wetlands from the Bear Creek D.O. source to the inlet of Perry Park Reservoir (Douglas County).

Mainstems of East Plum Creek, West Plum Creek, and Plum Creek from the boundary of national forest West Plum Aquatic Life COSPUS10a lands to Chatfield Reservoir, L Creek (provisional) mainstems of Stark Creek and Gove Creek from the boundary of national forest lands to their confluence.

Tributaries to East Plum Creek COSPUS11a which are not on national forest all pH, Fe(Trec) lands.

Tributaries to East Plum Creek Aquatic Life COSPUS11a which are not on national forest Cook Creek L (provisional)

lands. Integrated QualityWater Monitoring and Assessment Report, AppendixD

36 Colorado’s Clean Water Act Monitoring & 303(d) WBID Segment Description Portion Section 303(d) Evaluation Priority Impairment Parameter(s)

Tributaries to W. Plum Creek, not Spring Creek, COSPUS11b Aquatic Life Use on USFS Land Bear Creek

COSPUS12 Garber and Jackson Creeks Jackson Creek Pb

COSPUS14 S. Platte River all As H

S. Platte River, Burlington Ditch to COSPUS15 all E. coli H Big Dry Creek

COSPUS16a Sand Creek all Se, E. coli L/H

Tributaries to S. Platte River, COSPUS16c Chatfield Reservoir to Big Dry all Se L Creek except specific listings

Tributaries to S. Platte River, Westerly Creek,

COSPUS16c Chatfield Reservoir to Big Dry E. coli H

Dry Creek |

Creek except specific listings D

Weir Gulch, Tributaries to S. Platte River, Sanderson Appendix COSPUS16c Chatfield Reservoir to Big Dry E. coli Gulch, Humble Creek except specific listings Creek

Harvard, Tributaries to S. Platte River, Harvard West, COSPUS16c Chatfield Reservoir to Big Dry E. coli (May-Oct) H and Lakewood Creek except specific listings Gulches

Washington Park Lakes, City Park Berkeley Lake, Aquatic Life Use (Hg COSPUS17a Lake, Rocky Mountain Lake, Rocky Mountain H Fish Tissue) Berkeley Lake Lake

Washington Park Lakes, City Park Rocky Mountain COSPUS17a Lake, Rocky Mountain Lake, pH L Lake Cu, D.O. Berkeley Lake

Washington Park Lakes, City Park Ferril Lake, COSPUS17a Lake, Rocky Mountain Lake, pH H Smith Lake

Integrated QualityWater Monitoring and Assessment Report, Berkeley Lake

37 Colorado’s Clean Water Act Monitoring & 303(d) WBID Segment Description Portion Section 303(d) Evaluation Priority Impairment Parameter(s)

Washington Park Lakes, City Park

COSPUS17a Lake, Rocky Mountain Lake, Smith Lake NH3 H Berkeley Lake

Washington Park Lakes, City Park COSPUS17a Lake, Rocky Mountain Lake, Grasmere Lake Cu Berkeley Lake

Washington Park Lakes, City Park COSPUS17a Lake, Rocky Mountain Lake, Berkeley Lake D.O., As H Berkeley Lake

Washington Park Lakes, City Park

COSPUS17a Lake, Rocky Mountain Lake, Duck Lake D.O., pH, NH3 H Berkeley Lake

COSPUS17b Sloan’s Lake all Fe (Trec) D.O.

All lakes and reservoirs in watershed |

COSPUS23 tributary to the South Platte from Barnum Lake D.O. L Chatfield to Big Dry Creek.

Lakes and reservoirs in the Upper COSPUS23 South Platte watershed within the Vanderbilt Lake D.O. City and County of Denver.

Lakes and reservoirs in the Upper Garfield Lake, COSPUS23 South Platte watershed within the Harvey Lake, Fe(trec) City and County of Denver. Aqua Golf Lake

Lakes and reservoirs in the Upper Garfield Lake, , COSPUS23 South Platte watershed within the Parkfield Lake, D.O. M City and County of Denver. Huston Lake

Aqua Golf Lake, Lakes and reservoirs in the Upper Huston Lake, COSPUS23 South Platte watershed within the pH M Overland Lake, City and County of Denver.

Parkfield Lake Integrated QualityWater Monitoring and Assessment Report, AppendixD

38 Colorado’s Clean Water Act Monitoring & 303(d) WBID Segment Description Portion Section 303(d) Evaluation Priority Impairment Parameter(s)

Lakes and reservoirs in the Upper COSPUS23 South Platte watershed within the Huston Lake E. coli City and County of Denver.

COUC Upper Colorado River Basin

Mainstem of the Blue River from the confluence with French Gulch to a COUCBL02a all Mn(WS) L point one half mile below Summit County Road 3.

All direct tributaries to Dillon Gold Run Gulch Reservoir and all tributaries and COUCBL04a below Jessie Cd, Zn wetlands in the Blue River drainage Mine above Dillon Reservoir.

Blue River from

Mainstem of the Blue River from the outlet of Dillon

COUCBL17 outlet of Dillon Reservoir to the Reservoir to N. Aquatic Life

|

D confluence with the Colorado River. Rock Creek confluence

Appendix Mainstem of Elliott Creek and Spruce Creek including all COUCBL20 tributaries and wetlands from their Spruce Creek Fe(Trec) sources to the confluence with the Blue River

Eagle River, Martin Creek to Gore COUCEA05c all Cd H Creek

Tributaries to Eagle River, Belden to Black Gore COUCEA06 Lake Creek, except specific Creek, adjacent Aquatic Life Sediment H

segments to I-70 Integrated QualityWater Monitoring and Assessment Report,

39 Colorado’s Clean Water Act Monitoring & 303(d) WBID Segment Description Portion Section 303(d) Evaluation Priority Impairment Parameter(s)

Mainstem of Lake Creek Tributaries to Eagle River, Belden to from below the Aquatic Life COUCEA06 Lake Creek, except specific confluence with L (provisional) segments East and West Lake Creek to the mouth

Beaver Creek Tributaries to Eagle River, Belden to from confluence COUCEA06 Lake Creek, except specific Aquatic Life with Wayne segments Creek to Mouth

Red Sandstone Creek from Tributaries to Eagle River, Belden to USFS Boundary COUCEA06 Lake Creek, except specific Aquatic Life to north side I- segments 70 Frontage

Road

|

Red Sandstone Creek from Tributaries to Eagle River, Belden to north side I-70 Aquatic Life COUCEA06 Lake Creek, except specific Frontage Road L (provisional) segments to confluence with Gore Creek

Mainstem of Gore Creek from the confluence with Black Gore Creek Aquatic Life COUCEA08 all L to the confluence with the Eagle (provisional) River.

Mainstem of the Eagle River from From Berry Gore Creek to a point immediately Creek to COUCEA09a Temperature below the confluence with Rube confluence with Creek. Ute Creek

Mainstem of the Eagle River from From Ute Creek Gore Creek to a point immediately to confluence COUCEA09a Temperature H below the confluence with Rube with Rube

Creek. Creek Integrated QualityWater Monitoring and Assessment Report, AppendixD

40 Colorado’s Clean Water Act Monitoring & 303(d) WBID Segment Description Portion Section 303(d) Evaluation Priority Impairment Parameter(s)

Eagle River Mainstem of the Eagle River from from confluence Gore Creek to a point immediately with Berry COUCEA09a Aquatic Life Sediment H below the confluence with Rube Creek to Creek. confluence with Squaw Creek

Eagle River from Gore Creek to Mainstem of the Eagle River from confluence with Gore Creek to a point immediately COUCEA09a Berry Creek and Sediment below the confluence with Rube from Squaw Creek. Creek to confluence with Rube Creek

All tributaries to the Eagle River

COUCEA10a from Lake Creek to the Colorado Eby Creek Se |

River. D

Tribs to the N Platte & Encampment South Fork Big COUCNP01 Cu, E.coli

Appendix Rivers w/in Wilderness Areas Creek

Tributaries to the North Platte River COUCNP04a except those tributaries in Segment Canadian River Fe(Dis), E. coli 1, 4b, 6, 7a and 7b.

Grizzly Creek, All tributaries to N. Platte River COUCNP04a Little Grizzly Aquatic Life Use except segments 4b, 6, 7a and 7b Creek

All tributaries to N. Platte River Little Grizzly COUCNP04a E.coli, Fe(Trec) except segments 4b, 6, 7a and 7b Creek

All tributaries to N. Platte River COUCNP04a Lake Creek pH, Fe(Trec) except segments 4b, 6, 7a and 7b

All tributaries to N. Platte River Big Creek Aquatic Life Use COUCNP04a

except segments 4b, 6, 7a and 7b Reservoir (Hg Fish Tissue) Integrated QualityWater Monitoring and Assessment Report,

41 Colorado’s Clean Water Act Monitoring & 303(d) WBID Segment Description Portion Section 303(d) Evaluation Priority Impairment Parameter(s)

Mainstem of the Illinois and

Canadian Rivers, including all tributaries of the Illinois from Indian COUCNP04b Creek to Michigan River except for Illinois River Fe (Trec) M specific listings in Segments 7a and 7b, and all tribs of Canadian entering the mainstem from the Southwest.

COUCNP07b Government Creek, Spring Creek Spring Creek D.O. M

All lakes and reservoirs tributary to the North Platte and Encampment Lake John, COUCNP09 Rivers North Delaney pH Lake

All lakes and reservoirs tributary to the North Platte and Encampment COUCNP09 Rivers Lake John D.O. H

|

Roaring Fork including all tributaries and wetlands from COUCRF03a Capitol Creek Se Hunter Creek to the Colorado River except segments 3b through 10

Roaring Fork including all West Sopris Aquatic Life COUCRF03a tributaries and wetlands from L Creek (provisional) Hunter Creek to the Colorado River

Roaring Fork including all Cattle Creek Aquatic Life COUCRF03a tributaries and wetlands from from Bowers L (provisional) Hunter Creek to the Colorado River Gulch to mouth

Roaring Fork from confluence Roaring Fork including all with Hunter Aquatic Life COUCRF03a tributaries and wetlands from L Creek to below (provisional) Hunter Creek to the Colorado River Brush Creek

confluence, Integrated QualityWater Monitoring and Assessment Report, AppendixD

42 Colorado’s Clean Water Act Monitoring & 303(d) WBID Segment Description Portion Section 303(d) Evaluation Priority Impairment Parameter(s)

Red Canyon Creek including all tributaries and wetlands from the COUCRF03b source to the Roaring Fork except Landis Creek Fe(Trec) Landis Creek from source to Hopkins Ditch Diversion

Mainstem of Brush Creek from the Mainstem Brush Aquatic Life COUCRF04 source to the confluence with the L Creek (provisional) Roaring Fork River.

South Fork Frying Pan River from transbasin diversion to All tributaries to the Fryingpan Aquatic Life COUCRF07 confluence with L River (provisional) unnamed tributary (39.25128oN, - o

106.59442 W)

|

D Thompson Creek including all Thompson COUCRF10 tributaries and wetlands from the Fe(Trec) Creek

Appendix source to the Crystal River

Mainstem of the Colorado River, including all tributaries and wetlands Willow Creek COUCUC02 Mn L within or flowing into Arapahoe Reservoir .

From 578 Road Mainstem of the Colorado River Bridge to just COUCUC03 from Lake Granby to the Roaring above the Temperature, Mn(WS) H Fork River. confluence with the Blue River

From the outlet Mainstem of the Colorado River of Windy Gap COUCUC03 from Lake Granby to the Roaring Aquatic Life Reservoir to 578 Fork River.

Road Bridge Integrated QualityWater Monitoring and Assessment Report,

43 Colorado’s Clean Water Act Monitoring & 303(d) WBID Segment Description Portion Section 303(d) Evaluation Priority Impairment Parameter(s)

Mainstem of unnamed tributary COUCUC06b from the headwaters to Willow all D.O. Creek Reservoir Road

All tribs to the Colorado River, including wetlands from a point abv the confluence with the Blue River COUCUC07a to blw confluence with the Roaring Alkali Slough Fe (Trec), Se L Fork, which are not on National Forest Lands except specific listings in segment 7b.

All tribs to the Colorado River, including wetlands from a point abv the confluence with the Blue River Muddy Creek COUCUC07a to blw confluence with the Roaring Temperature and tribs Fork, which are not on National Forest Lands except specific listings

in segment 7b.

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COUCUC07b Muddy Creek Muddy Creek from Wolford from Wolford Mountain Reservoir. Rock Creek, Mountain Temperature Deep Creek, Sheephorn Creek Reservoir to Sweetwater Creek and Piney River. Cow Gulch

COUCUC07b Muddy Creek from Wolford Muddy Creek Mountain Reservoir. Rock Creek, from Cow Temperature H Deep Creek, Sheephorn Creek Gulch to the Sweetwater Creek and Piney River. Colorado River

Mainstem of the Fraser River from the source to a point immediately Fraser River, Aquatic Life COUCUC10a below the Rendezvous Bridge. All L Vasquez Creek (provisional) tributaries to the Fraser River, from the source to the Colorado River

Mainstem of the Fraser River from the source to a point immediately COUCUC10a below the Rendezvous Bridge. All Ranch Creek Temperature L tributaries to the Fraser River, from

the source to the Colorado River. Integrated QualityWater Monitoring and Assessment Report, AppendixD

44 Colorado’s Clean Water Act Monitoring & 303(d) WBID Segment Description Portion Section 303(d) Evaluation Priority Impairment Parameter(s)

Mainstem of the Fraser River from COUCUC10c Hammond Ditch to the Colorado all Temperature L River.

From the Town Mainstem of the Fraser River, from of Fraser to the COUCUC10c the Hammond Ditch to the confluence with Cu confluence with the Colorado River the Colorado River.

From the Town Mainstem of the Fraser River, from of Tabernash to COUCUC10c the Hammond Ditch to the Pb the Town of confluence with the Colorado River Granby

Colorado River and tributaries, Shadow COUCUC12 wetlands, lakes and reservoirs within D.O. H Mountain Lake

Arapahoe National Recreation Area

|

D Lakes and Reservoirs within Arapahoe National Recreation Area Aquatic Life Use (Hg COUCUC12 Lake Granby H including Grand Lake, Shadow Fish Tissue)

Appendix Mountain Lake and Lake Granby

Yampa River Mainstem of the Yampa River from below COUCYA02a Mn, Se Wheeler Creek to Oak Creek. Stagecoach Reservoir

All lakes and reservoirs tributary to Elkhead Aquatic Life Use (Hg COUCYA02b the Yampa River, Elkhead Creek, Reservoir, H Fish Tissue) and the Little Snake River. Catamount

Yampa River from Oak Creek to COUCYA02c all Temperature Elkhead Creek

All tributaries to Yampa River COUCYA03 except for specific listings, on USFS Bushy Creek Sediment L

land Integrated QualityWater Monitoring and Assessment Report,

45 Colorado’s Clean Water Act Monitoring & 303(d) WBID Segment Description Portion Section 303(d) Evaluation Priority Impairment Parameter(s)

All tributaries to Yampa River COUCYA03 except for specific listings, on USFS Walton Creek Mn land

All tributaries to Yampa River Little COUCYA03 except for specific listings, on USFS Morrison Zn, Fe(dis) land Creek

Little White Snake Creek, source to COUCYA04 all D.O. Yampa River

Elk River below COUCYA08 Elk River source to Yampa River E.coli H Morin Ditch

Elk River including tributaries and Lost Dog COUCYA08 wetlands from the source to Yampa Hg Creek

River

Foidel Creek and tributaries, Fish | COUCYA13b Fish Creek E.coli Creek, Middle Creek and tributaries

Dry Creek including all wetlands Below Seneca COUCYA13d and tributaries from source to the sample location Se L Yampa River 8 (WSD5)

Dry Creek including all tributaries Fe(Trec) (Snowmelt COUCYA13d and wetlands from source to the all L season) Yampa River

Dry Creek Dry Creek including all tributaries below Routt COUCYA13d and wetlands from the source to the County Road 53 Pb, E. Coli Yampa River (Sec. 22, T6N, R88W)

Sage Creek below Routt COUCYA13e Sage Creek, Grassy Creek and tribs Se L County Road

51D Integrated QualityWater Monitoring and Assessment Report, AppendixD

46 Colorado’s Clean Water Act Monitoring & 303(d) WBID Segment Description Portion Section 303(d) Evaluation Priority Impairment Parameter(s)

Mainstem of Elkhead Creek and tributaries Calf Creek and 80A Road Aquatic Life COUCYA15 on the Dry Fork of Elkhead Creek, Elkhead Creek L (provisional) to the confluence with the Yampa River.

Little Snake River including all COUCYA18 tributaries and wetlands from forest all Cu boundary to Wyoming border

|

D

Appendix Integrated QualityWater Monitoring and Assessment Report,

47