ADOT RECEIVING WATERS

Designated Receiving Water Within 1/4 Route ADOT District(s) Receiving Waters Description Pollutants TMDL? Pollutants Uses* Status Mile? Below Whitlow Dam to SR‐24 (802) Central Queen Creek A&We, PBC Unimpaired N ‐‐ ‐‐ ‐‐ w/Gila Below I‐10 Bridge to COP 23rd Ave SR‐51 Central A&Ww, PBC, FC Unimpaired N ‐‐ ‐‐ ‐‐ WWTP Suspended Suspended Below Lyman Reservoir to SR‐611 Northeast Little River A&Wc, FBC, DWS, FC, AgI, AgL Not Attaining N Sediment Y Sediment confluence w/ Concentration Concentration Headwaters to confluence w/Little A&Wc, FBC, FC, AgI, AgL Unimpaired Y ‐‐ ‐‐ ‐‐ SR‐641 Northcentral Navajo Nation A&Ww, FBC, DWS, FC, AgI, AgL** Unimpaired Y ‐‐ ‐‐ ‐‐ Colorado River to A&Wc, FBC, DWS, FC, AgI, AgL Unimpaired N ‐‐ ‐‐ ‐‐ SR‐66 Northwest Truxton Wash Headwaters to Red Lake A&We, PBC Unimpaired Y ‐‐ ‐‐ ‐‐ SR‐671 Northcentral Little Colorado River Lake Powell to Lake Mead A&Wc, FBC, DWS, FC, AgI, AgL Unimpaired N ‐‐ ‐‐ ‐‐ Headwaters to confluence A&Ww, FBC, DWS, FC, AgI, AgL Impaired N Selenium N ‐‐ W/Colorado River SR‐68 Northwest Colorado River Lake Mead to Topock Marsh A&Wc, FBC, DWS, FC, AgI, AgL Unimpaired Y ‐‐ ‐‐ ‐‐ SR‐691 Northwest Headwaters to Watson Lake A&Wc, FBC, FC, AgI, AgL Not Attaining N E. Coli Y E. Coli Watson Lake 34°34'58"/112°25'26" ‐‐ Not Attaining N TN Y TN A&Ww Not Attaining N DO Y DO A&Ww, FBC, AgI, AgL Not Attaining N pH Y pH ‐‐ Not Attaining N TP Y TP Headwaters to confluence w/unnamed tributary at A&We, PBC, AgL Unimpaired Y ‐‐ ‐‐ ‐‐ 34°35'14''/112°16'18'' Below unnamed tributary to the SR‐71 Northwest A&We, PBC, AgL Unimpaired N ‐‐ ‐‐ ‐‐ Buckeye Irrigation Company Canal Alamo Lake 34°14'06"/113°35'00" A&Ww Impaired N Ammonia N ‐‐ FC Impaired N Mercury N ‐‐ FBC, AgL, A&Ww Impaired N pH N ‐‐ SR‐721 Southwest Colorado River Topock Marsh to Morelos Dam A&Ww, FBC, DWS, FC, AgI, AgL Unimpaired N ‐‐ ‐‐ ‐‐ SR‐731 Northeast Roosevelt Lake 33°52'17"/111°00'17" A&Ww, FBC, DWS, FC, AgI, AgL Impaired N Mercury N ‐‐ Below Lake Pleasant to the City of SR‐741 Central Agua Fria River El Mirage WWTP at A&We, PBC, AgL Unimpaired Y ‐‐ ‐‐ ‐‐ 33°34'20"/112°18'32" Below I‐17 to confluence w/Agua New River A&We, PBC, AgL Unimpaired Y ‐‐ ‐‐ ‐‐ Fria River Below unnamed tributary to the Hassayampa River A&We, PBC, AgL Unimpaired N ‐‐ ‐‐ ‐‐ Buckeye Irrigation Company Canal SR‐75 Southeast New border to the San A&Ww, FBC, FC, AgI, AgL Not Attaining Y E. coli Y E. coli Carlos Indian Reservation Suspended Suspended Boundary A&Ww, FBC, FC, AgI, AgL Not Attaining Y Sediment Y Sediment Concentration Concentration A&Ww, FBC, FC, AgI, AgL Impaired N Lead N ‐‐ SR‐771 Southcentral, Northeast, Santa Cruz River Agua Nueva WRF outfall to A&Wedw Not Attaining N Ammonia N ‐‐ Southeast Baumgartner Road PBC Impaired N E. coli N ‐‐ From Redington to confluence with San Pedro River A&Ww, FBC, FC, AgL Not Attaining Y E. coli Y E. coli the Gila River Below downstream boundary of Aravaipa Canyon Wilderness Area A&Ww, FBC, FC, AgL Impaired Y E. coli N ‐‐ to confluence w/San Pedro River San Carlos Indian Reservation Gila River boundary to the Ashurst‐Hayden A&Ww, FBC, FC, AgI, AgL Impaired Y Sediment N ‐‐ Dam Roosevelt Lake 33°52'17"/111°00'17" A&Ww, FBC, DWS, FC, AgI, AgL Impaired N Mercury N ‐‐ Suspended Suspended Below Lyman Reservoir to Little Colorado River A&Wc, FBC, DWS, FC, AgI, AgL Not Attaining N Sediment Y Sediment confluence w/Puerco River Concentration Concentration A&Wc, FBC, DWS, FC, AgI, AgL Not Attaining N E. Coli Y E. Coli SR‐78 Southeast Gila River border to the San A&Ww, FBC, FC, AgI, AgL Not Attaining N E. coli Y E. coli Carlos Indian Reservation Suspended Suspended Boundary A&Ww, FBC, FC, AgI, AgL Not Attaining N Sediment Y Sediment Concentration Concentration A&Ww, FBC, FC, AgI, AgL Impaired N Lead N ‐‐ SR‐791 Southcentral Santa Cruz River Agua Nueva WRF outfall to A&Wedw Not Attaining N Ammonia N ‐‐ Baumgartner Road PBC Impaired N E. coli N ‐‐ Ashurst‐Hayden Dam to the Town Gila River of Florence WWTP outfall at A&We, PBC, AgL Unimpaired Y ‐‐ ‐‐ ‐‐ 33°02'20''/111°24'19'' Ashurst‐Hayden Dam to the Town SR‐79 Southcentral Gila River of Florence WWTP outfall at A&We, PBC, AgL Unimpaired Y ‐‐ ‐‐ ‐‐ Business 33°02'20''/111°24'19'' Headwaters to the Lavender Pit at SR‐80 Southeast, Southcentral Mule Gulch A&Ww, PBC, FC Impaired Y Copper N ‐‐ 31°26'11"/ 109°54'02" The Lavender Pit to the SR‐80 A&We, PBC Impaired Y Copper N ‐‐ bridge at 31°26'30''/109°49'28'' San Pedro River U.S./ Mexico Border to A&Ww, FBC, FC, AgI, AgL Impaired Y E. coli N ‐‐ Redington A&Ww Impaired N Copper N ‐‐ A&Ww Impaired N DO N ‐‐

Page 1 of 6 ADOT RECEIVING WATERS

Designated Receiving Water Within 1/4 Route ADOT District(s) Receiving Waters Description Pollutants TMDL? Pollutants Uses* Status Mile? SR‐821 Southcentral Nogales Wash Headwaters to confluence A&Ww, PBC, FC Impaired Y Ammonia N ‐‐ w/Potrero Creek A&Ww Impaired Y Chlorine N ‐‐ A&Ww Impaired Y Copper N ‐‐ PBC Impaired Y E. coli N ‐‐ U.S./Mexico border to the Nogales Santa Cruz River International WWTP outfall at A&Ww, FBC, DWS, FC, AgI, AgL Unimpaired Y ‐‐ ‐‐ ‐‐ 31°27'25"/110°58'04" Below groundwater upwelling A&Ww, FBC, FC, AgI, AgL Impaired Y DO N ‐‐ point to confluence w/Santa Cruz River A&Ww, FBC, FC, AgI, AgL Impaired Y Zinc N ‐‐ Upper Alum Gulch Below 31°29'17''/110°44'25'' to A&We, PBC, AgL Not Attaining Y Cadmium Y Cadmium confluence w/Sonoita Creek A&We, PBC, AgL Not Attaining Y Copper Y Copper A&We, PBC, AgL Not Attaining Y Zinc Y Zinc A&We, PBC, AgL Not Attaining Y pH Y pH 3R Canyon From 31°28'28"/110°47'15" to A&We, PBC, AgL Not Attaining Y Beryllium Y Beryllium confluence w/Sonoita Creek A&We, PBC, AgL Not Attaining Y Cadmium Y Cadmium A&We, PBC, AgL Not Attaining Y Copper Y Copper A&We, PBC, AgL Not Attaining Y Zinc Y Zinc A&We, PBC, AgL Not Attaining Y pH Y pH From confluence w/Gardner Cienega Creek Canyon to USGS gaging station A&Ww, FBC, FC, AgL OAW N ‐‐ ‐‐ ‐‐ (#09484600) San Pedro River U.S./ Mexico Border to A&Ww, FBC, FC, AgI, AgL Impaired Y E. coli N ‐‐ Redington A&Ww Impaired N Copper N ‐‐ A&Ww Impaired N DO N ‐‐ SR‐831 Southcentral Parker 31°25'35''/110°27'15'' A&Wc, FBC, FC Impaired Y Mercury N ‐‐ Headwaters to confluence w/San A&Ww, FBC, FC, AgL Unimpaired Y ‐‐ ‐‐ ‐‐ Pedro River From confluence w/Gardner Cienega Creek Canyon to USGS gaging station A&Ww, FBC, FC, AgL OAW N ‐‐ ‐‐ ‐‐ (#09484600) Headwaters to unnamed spring at Davidson Canyon A&We, PBC, AgL Unimpaired Y ‐‐ ‐‐ ‐‐ 31°59'00"/110°38'49" From unnamed Spring to confluence w/unnamed tributary A&Ww, FBC, FC, AgL OAW N ‐‐ ‐‐ ‐‐ at 31°59'09"/110°38'44" Below confluence w/unnamed tributary to unnamed spring at A&We, PBC, AgL OAW N ‐‐ ‐‐ ‐‐ 32°00'40"/110°38'36" From unnamed spring to A&Ww, FBC, FC, AgL OAW N ‐‐ ‐‐ ‐‐ confluence w/Cienega Creek SR‐841 Southcentral Gila River GRIC A&We, PBC, AgL** Unimpaired N ‐‐ ‐‐ ‐‐ From the confluence w/Salt River SR‐85 Southcentral, Southwest Gila River A&Wedw, PBC, FC, AgI, AgL Not Attaining Y Selenium Y Selenium to Gillespie Dam Gillespie Dam to confluence A&Ww, FBC, FC, AgI, AgL Unimpaired N ‐‐ ‐‐ ‐‐ w/Painted Rock Dam SR‐86 Southcentral Santa Cruz River Agua Nueva WRF outfall to A&Wedw Not Attaining N Ammonia N ‐‐ Baumgartner Road PBC Impaired N E. coli N ‐‐ Painted Rock Dam to confluence Gila River A&Ww, FBC, FC, AgI, AgL Unimpaired N ‐‐ ‐‐ ‐‐ w/Colorado River SR‐87 Southcentral, Central, Gila River GRIC A&We, PBC, AgL** Unimpaired Y ‐‐ ‐‐ ‐‐ Northcentral, Northeast City of Mesa NW WRF outfall to Salt River A&Wedw, PBC, FC, AgI, AgL Unimpaired Y ‐‐ ‐‐ ‐‐ Below Dam to Salt A&Ww, FBC, DWS, FC, AgI, AgL Unimpaired Y ‐‐ ‐‐ ‐‐ River Below confluence w/Ellison Creek A&Ww, FBC, DWS, FC, AgI, AgL Unimpaired Y ‐‐ ‐‐ ‐‐ to confluence w/Verde River Below confluence w/Puerco River Little Colorado River to the Navajo Nation Reservation A&Ww, FBC, DWS, FC, AgI, AgL Unimpaired Y ‐‐ ‐‐ ‐‐ boundary Below confluence w/unnamed A&Ww, FBC, FC, AgI, AgL Impaired N Mercury N ‐‐ tributary to Roosevelt A&Ww, FBC, FC, AgI, AgL Not Attaining N Nitrogen N ‐‐ Lake A&Ww, FBC, FC, AgI, AgL Not Attaining N E.coli N ‐‐ Theodore Roosevelt Dam to 2 km SR‐88 Central, Southeast Salt River A&Ww, FBC, DWS, FC, AgI, AgL Unimpaired Y ‐‐ ‐‐ ‐‐ below Granite Reef Dam Canyon Lake 33°32'44"/111°26'19" A&Ww, FBC, DWS, FC, AgI, AgL Impaired Y DO N ‐‐ 33°37'23"/111°12'26" A&Ww, FBC, DWS, FC, AgI, AgL Impaired N DO N ‐‐ A&Ww, FBC, DWS, FC, AgI, AgL Impaired N Mercury N ‐‐ Roosevelt Lake 33°52'17"/111°00'17" A&Ww, FBC, DWS, FC, AgI, AgL Impaired Y Mercury N ‐‐ SR‐89 Northwest Hassayampa River Headwaters to confluence A&Wc, FBC, FC, AgI, AgL Not Attaining N Copper Y Copper w/unnamed tributary at A&Wc, FBC, FC, AgI, AgL Not Attaining N Cadmium Y Cadmium 34°26'09''/112°30'32'' A&Wc, FBC, FC, AgI, AgL Not Attaining N Zinc Y Zinc A&Wc, FBC, FC, AgI, AgL Not Attaining N pH N ‐‐ Below confluence w/unnamed tributary to confluence A&Ww, FBC, FC, AgI, AgL Unimpaired N ‐‐ ‐‐ ‐‐ w/unnamed tributary at 33°51'52"/112°39'56"

Page 2 of 6 ADOT RECEIVING WATERS

Designated Receiving Water Within 1/4 Route ADOT District(s) Receiving Waters Description Pollutants TMDL? Pollutants Uses* Status Mile? SR‐89 Northwest Granite Creek Headwaters to Watson Lake A&Wc, FBC, FC, AgI, AgL Not Attaining Y DO N ‐‐ (cont.) (cont.) A&Wc, FBC, FC, AgI, AgL Impaired Y E. coli Y E. coli Watson Lake 34°34'58"/112°25'26" ‐‐ Not Attaining Y TN Y TN A&Ww Not Attaining Y DO Y DO A&Ww, FBC, AgI, AgL Not Attaining Y pH Y pH ‐‐ Not Attaining Y TP Y TP From confluence of Chino Wash Verde River and Granite Creek to Bartlett Lake A&Ww, FBC, FC, AgI, AgL Unimpaired Y ‐‐ ‐‐ ‐‐ Dam Headwaters to confluence SR‐89A Northwest, Northcentral Agua Fria River w/unnamed tributary at A&We, PBC, AgL Unimpaired Y ‐‐ ‐‐ ‐‐ 34°35'14''/112°16'18'' From confluence of Chino Wash Verde River and Granite Creek to Bartlett Lake A&Ww, FBC, FC, AgI, AgL Impaired Y Turbidity Y Turbidity Dam Headwaters to confluence Oak Creek w/unnamed tributary at A&Wc, FBC, DWS, FC, AgI, AgL OAW, Not Attaining Y E. coli Y E. coli 34°59'15"/111°44'47 Below confluence w/unnamed tributary to confluence w/Verde A&Ww, FBC, DWS, FC, AgI, AgL OAW, Impaired N E. coli Y E. coli River SR‐90 Southeast, Southcentral San Pedro River U.S./ Mexico Border to A&Ww, FBC, FC, AgI, AgL Impaired Y E. coli N ‐‐ Redington A&Ww Impaired Y Copper N ‐‐ A&Ww Impaired Y DO N ‐‐ Headwaters to confluence w/San Babocomari River A&Ww, FBC, FC, AgL Unimpaired Y ‐‐ ‐‐ ‐‐ Pedro River SR‐92 Southeast, Southcentral San Pedro River U.S./ Mexico Border to A&Ww, FBC, FC, AgI, AgL Impaired Y E. coli N ‐‐ Redington A&Ww Impaired Y Copper N ‐‐ A&Ww Impaired Y DO N ‐‐ SR‐95 Southwest, Northwest Colorado River Topock Marsh to Morelos Dam A&Ww, FBC, DWS, FC, AgI, AgL Unimpaired Y ‐‐ ‐‐ ‐‐ SR‐96 Northwest Santa Maria River Headwaters to Alamo Lake A&Ww, FBC, FC, AgI, AgL Unimpaired Y ‐‐ ‐‐ ‐‐ SR‐97 Northwest Santa Maria River Headwaters to Alamo Lake A&Ww, FBC, FC, AgI, AgL Unimpaired N ‐‐ ‐‐ ‐‐ SR‐98 Northcentral Lake Powell 36°59'53"/111°08'17" A&Wc, FBC, DWS, FC, AgI, AgL Impaired N Mercury N ‐‐ Colorado River Lake Powell to Lake Mead A&Wc, FBC, DWS, FC, AgI, AgL Unimpaired N ‐‐ ‐‐ ‐‐ SR‐99 Northcentral Little Colorado River Navajo Nation A&Ww, FBC, DWS, FC, AgI, AgL** Unimpaired Y ‐‐ ‐‐ ‐‐ City of Mesa NW WRF outfall to Loop 101 Central Salt River A&Wedw, PBC, FC, AgI, AgL Unimpaired Y ‐‐ ‐‐ ‐‐ Tempe Town Lake Below I‐17 to confluence w/Agua New River A&We, PBC, AgL Unimpaired Y ‐‐ ‐‐ ‐‐ Fria River Below 2 km downstream of the City of El Mirage WWTP to City of Agua Fria River A&We, PBC Unimpaired N ‐‐ ‐‐ ‐‐ Avondale WWTP outfall at 33°23'55"/112°21'16" Below Tempe Town Lake to I‐10 SR‐143 Central Salt River A&We, PBC Unimpaired Y ‐‐ ‐‐ ‐‐ bridge Headwaters to confluence SR‐169 Northwest Agua Fria River w/unnamed tributary at A&We, PBC, AgL Unimpaired Y ‐‐ ‐‐ ‐‐ 34°35'14''/112°16'18'' Ashurst‐Hayden Dam to the Town Suspended SR‐1771 Southeast Gila River of Florence WWTP outfall at A&We, PBC, AgL Impaired Y Sediment N ‐‐ 33°02'20''/111°24'19'' Concentration Mineral Creek Headwaters to A&Ww, FBC, FC, AgL Impaired Y Copper N ‐‐ 33°12'34''/110°59'58'' A&Ww, FBC, FC, AgL Impaired Y Selenium N ‐‐ A&Ww, FBC, FC, AgL Impaired Y DO N ‐‐ Arnett Creek Headwaters to Queen Creek A&Ww*** Impaired Y Copper N ‐‐ Headwaters to the Town of Queen Creek Superior WWTP outfall A&Ww, PBC, AgL Impaired N Copper N ‐‐ at 33°16’33”/111°07’44” From confluence of Chino Wash SR‐179 Northcentral Verde River and Granite Creek to Bartlett Lake A&Ww, FBC, FC, AgI, AgL Unimpaired N ‐‐ ‐‐ ‐‐ Dam Headwaters to confluence Oak Creek w/unnamed tributary at A&Wc, FBC, DWS, FC, AgI, AgL OAW, Not Attaining Y E. coli Y E. coli 34°59'15"/111°44'47 Below Lyman Reservoir to SR‐180A Northeast Little Colorado River A&Wc, FBC, DWS, FC, AgI, AgL Unimpaired N ‐‐ ‐‐ ‐‐ confluence w/Puerco River From 32°08'19''/109°50'59'' in the SR‐181 Southeast Wilcox Playa A&Ww, FBC, FC, AgL Unimpaired N ‐‐ ‐‐ ‐‐ Sulphur Springs Valley From 32°08'19''/109°50'59'' in the SR‐186 Southeast Wilcox Playa A&Ww, FBC, FC, AgL Unimpaired N ‐‐ ‐‐ ‐‐ Sulphur Springs Valley SR‐187 Southcentral Gila River GRIC A&We, PBC, AgL** Unimpaired N ‐‐ ‐‐ ‐‐ SR‐188 Southeast Roosevelt Lake 33°52'17"/111°00'17" A&Ww, FBC, DWS, FC, AgI, AgL Impaired Y Mercury N ‐‐ Apache Lake 33°37'23"/111°12'26" A&Ww, FBC, DWS, FC, AgI, AgL Impaired N DO N ‐‐ A&Ww, FBC, DWS, FC, AgI, AgL Impaired N Mercury N ‐‐ Below confluence with unnamed Tonto Creek A&Ww, FBC, FC, AgI, AgL Impaired Y Mercury N ‐‐ tributary to Roosevelt Lake

Below confluence with unnamed Pinto Creek A&Ww, FBC, FC, AgI, AgL Impaired, Not Attaining Y Copper Y Copper tributary to Roosevelt Lake SR‐189 Southcentral Nogales Wash Headwaters to confluence A&Ww, PBC, FC Impaired Y Ammonia N ‐‐ w/Potrero Creek A&Ww Impaired Y Chlorine N ‐‐ A&Ww Impaired Y Copper N ‐‐ PBC Impaired Y E. coli N ‐‐

Page 3 of 6 ADOT RECEIVING WATERS

Designated Receiving Water Within 1/4 Route ADOT District(s) Receiving Waters Description Pollutants TMDL? Pollutants Uses* Status Mile? SR‐195 Southwest Colorado River Main Canal to Mexico border A&Ww, FBC*** Impaired N Selenium N ‐‐ 2 km below Granite Reef Dam to Loop 202 Central Salt River City of Mesa NW WRF outfall at A&We, PBC Unimpaired Y ‐‐ ‐‐ ‐‐ 33°26'22"/111°53'14" City of Mesa NW WRF outfall to A&Wedw, PBC Unimpaired Y ‐‐ ‐‐ ‐‐ Tempe Town Lake Below Tempe Town Lake to I‐10 A&We, PBC Unimpaired Y ‐‐ ‐‐ ‐‐ bridge Gila River GRIC A&We, PBC, AgL** Unimpaired N ‐‐ ‐‐ ‐‐ Below Tempe Town Lake to I‐10 SR‐202S Central Salt River A&We, PBC Unimpaired Y ‐‐ ‐‐ ‐‐ bridge SR‐210 Southcentral Santa Cruz River Agua Nueva WRF outfall to A&Wedw Not Attaining N Ammonia N ‐‐ Baumgartner Road PBC Impaired N E. coli N ‐‐ From the confluence w/Salt River SR‐238 Central Gila River A&Wedw, PBC, FC, AgI, AgL Not Attaining Y Selenium Y Selenium to Gillespie Dam SR‐260 Northeast, Northcentral Little Colorado River Headwaters to Lyman Reservoir A&Wc, FBC, FC, AgI, AgL Not Attaining Y Turbidity Y Turbidity Below confluence w/Ellison Creek East Verde River A&Ww, FBC, DWS, FC, AgI, AgL Unimpaired Y ‐‐ ‐‐ ‐‐ to confluence w/Verde River From confluence of Chino Wash Verde River and Granite Creek to Bartlett Lake A&Ww, FBC, FC, AgI, AgL Impaired Y Turbidity Y Turbidity Dam Confluence of White and Black Salt River A&Wc, FBC, DWS, FC, AgI, AgL** Unimpaired N ‐‐ ‐‐ ‐‐ to Roosevelt Lake Headwaters to confluence A&Wc, FBC, FC, AgI, AgL Impaired Y DO N ‐‐ w/Tonto Creek FBC Not Attaining Y E. coli Y E. coli Headwaters to confluence Tonto Creek A&Wc, FBC, FC, AgI, AgL Not Attaining Y TN Y TN w/unnamed tributary at 34°18'11"/111°04'18" FC Not Attaining Y E. coli Y E. coli SR‐261 Northeast Crescent Lake 33°54'38"/109°25'18" A&Wc, FBC, FC, AgI, AgL Impaired Y pH N ‐‐ Little Colorado River Headwaters to Lyman Reservoir A&Wc, FBC, FC, AgI, AgL Not Attaining Y Turbidity Y Turbidity SR‐264 Northeast Little Colorado River Navajo Nation A&Ww, FBC, DWS, FC, AgI, AgL** Unimpaired N ‐‐ ‐‐ ‐‐ Headwaters to confluence w/Little Puerco River A&Ww, FBC, DWS, FC, AgI, AgL Unimpaired N ‐‐ ‐‐ ‐‐ Colorado River

New Mexico border to the San SR‐266 Southeast Gila River A&Ww, FBC, FC, AgI, AgL Unimpaired N ‐‐ ‐‐ ‐‐ Carlos Indian Reservation boundary Headwaters to Government SR‐2731 Northeast West Fork Little Colorado River A&Wc, FBC, FC OAW Y ‐‐ ‐‐ ‐‐ Springs Crescent Lake 33°54'38"/109°25'18" A&Wc, FBC, FC, AgI, AgL Impaired Y pH N ‐‐ SR‐277 Northeast Little Colorado River Below Lyman Reservoir to A&Wc, FBC, DWS, FC, AgI, AgL Not Attaining N E. coli Y E. coli confluence w/Puerco River Suspended Suspended A&Wc, FBC, DWS, FC, AgI, AgL Not Attaining N Sediment Y Sediment Concentration Concentration Agua Nueva WRF outfall to SR‐286 Southcentral Santa Cruz River A&Wedw, PBC Unimpaired N ‐‐ ‐‐ ‐‐ Baumgartner Road SR‐287 Southcentral Gila River GRIC A&We, PBC, AgL** Unimpaired N ‐‐ ‐‐ ‐‐ SR‐288 Southeast Roosevelt Lake 33°52'17"/111°00'17" A&Ww, FBC, DWS, FC, AgI, AgL Impaired Y Mercury N ‐‐ SR‐2891 Southcentral Pena Blanca Lake 31°24'15"/111°05'12" A&Ww, FBC, FC, AgI, AgL Not Attaining Y Mercury Y Mercury Potrero Creek Below I‐19 to confluence A&Ww, FBC, FC, AgL Impaired Y Chlorine N ‐‐ w/Santa Cruz River A&Ww Impaired Y DO N ‐‐ FBC Impaired Y E. coli N ‐‐ Below Lake Pleasant to the City of Loop 3031 Central Agua Fria River El Mirage WWTP at A&We, PBC, AgL Unimpaired Y ‐‐ ‐‐ ‐‐ 33°34'20"/112°18'32" Below I‐17 to confluence w/Agua New River A&We, PBC, AgL Unimpaired Y ‐‐ ‐‐ ‐‐ Fria River SR‐347 Central, Southcentral Gila River GRIC A&We, PBC, AgL** Unimpaired Y ‐‐ ‐‐ ‐‐

New Mexico border to the San SR‐366 Southeast Gila River A&Ww, FBC, FC, AgI, AgL Unimpaired N ‐‐ ‐‐ ‐‐ Carlos Indian Reservation boundary

SR‐373 Northeast Little Colorado River Headwaters to Lyman Reservoir A&Wc, FBC, FC, AgI, AgL Not Attaining Y Turbidity Y Turbidity Below confluence w/Puerco River SR‐377 Northeast Little Colorado River to the Navajo Nation Reservation A&Ww, FBC, DWS, FC, AgI, AgL Unimpaired N ‐‐ ‐‐ ‐‐ boundary Agua Nueva WRF outfall to SR‐386 Southcentral Santa Cruz River A&Wedw, PBC Unimpaired N ‐‐ ‐‐ ‐‐ Baumgartner Road SR‐387 Southcentral Gila River GRIC A&We, PBC, AgL** Unimpaired N ‐‐ ‐‐ ‐‐ Headwaters to confluence SR‐3891 Northcentral Kanab Creek A&Ww, FBC, DWS, FC, AgI, AgL Impaired Y Selenium N ‐‐ W/Colorado River Confluence of White and Black SR‐4731 Northeast Salt River A&Wc, FBC, DWS, FC, AgI, AgL** Unimpaired N ‐‐ ‐‐ ‐‐ Rivers to Roosevelt Lake SR‐564 Northeast Little Colorado River Navajo Nation A&Ww, FBC, DWS, FC, AgI, AgL** Unimpaired N ‐‐ ‐‐ ‐‐ SR‐587 Central Gila River GRIC A&We, PBC, AgL** Unimpaired Y ‐‐ ‐‐ ‐‐ SR‐989 Southcentral Santa Cruz River Agua Nueva WRF outfall to A&Wedw Not Attaining N Ammonia N ‐‐ Baumgartner Road PBC Impaired N E. coli N ‐‐

Page 4 of 6 ADOT RECEIVING WATERS

Designated Receiving Water Within 1/4 Route ADOT District(s) Receiving Waters Description Pollutants TMDL? Pollutants Uses* Status Mile? Northeast, Southeast, Headwaters to confluence w/Little US‐60 Nutrioso Creek A&Wc, FBC, FC, AgI, AgL Not Attaining Y Turbidity Y Turbidity Southcentral, Central, Colorado River Northwest, Southwest Little Colorado River Headwaters to Lyman Reservoir A&Wc, FBC, FC, AgI, AgL Not Attaining Y Turbidity Y Turbidity Little Colorado River Below Lyman Reservoir to A&Wc, FBC, DWS, FC, AgI, AgL Not Attaining N E. coli Y E. coli confluence w/Puerco River Suspended Suspended A&Wc, FBC, DWS, FC, AgI, AgL Not Attaining N Sediment Y Sediment Concentration Concentration Confluence of White and Black Salt River A&Wc, FBC, DWS, FC, AgI, AgL** Unimpaired Y ‐‐ ‐‐ ‐‐ Rivers to Roosevelt Lake Headwaters to confluence Pinto Creek w/unnamed tributary at A&Wc, FBC, FC, AgI, AgL Not Attaining Y Copper Y Copper 33°19'27"/110°54'58" Five Point Mtn Tributary Headwaters to Pinto Creek A&We, PBC*** Impaired Y Copper N ‐‐ Queen Creek Headwaters to the Town of A&Ww, PBC, AgL Impaired Y Copper N ‐‐ Superior WWTP outfall PBC Impaired Y Lead N ‐‐ at 33°16’33”/111°07’44” A&Ww Impaired Y Selenium N ‐‐ Below Town of Superior WWTP Queen Creek outfall to confluence w/Potts A&Wedw, PBC Impaired Y Copper N ‐‐ Canyon Gila River GRIC A&We, PBC, AgL** Unimpaired Y ‐‐ ‐‐ ‐‐ Below Tempe Town Lake to I‐10 Salt River A&We, PBC Unimpaired Y ‐‐ ‐‐ ‐‐ bridge Below I‐17 to confluence w/Agua New River A&We, PBC, AgL Unimpaired Y ‐‐ ‐‐ ‐‐ Fria River Below Lake Pleasant to the City of Agua Fria River El Mirage WWTP at A&We, PBC, AgL Unimpaired Y ‐‐ ‐‐ ‐‐ 33°34'20"/112°18'32" Below unnamed tributary to the Hassayampa River A&We, PBC, AgL Unimpaired Y ‐‐ ‐‐ ‐‐ Buckeye Irrigation Company Canal Colorado River Topock Marsh to Morelos Dam A&Ww, FBC, DWS, FC, AgI, AgL Unimpaired Y ‐‐ ‐‐ ‐‐ US‐64 Northeast San Juan River New Mexico **** Unimpaired N ‐‐ ‐‐ ‐‐ US‐70 Southeast Gila River New Mexico border to the San A&Ww, FBC, FC, AgI, AgL Not Attaining N E. coli Y E. coli Carlos Indian Reservation Suspended Suspended Boundary A&Ww, FBC, FC, AgI, AgL Not Attaining N Sediment Y Sediment Concentration Concentration San Carlos Indian Reservation Gila River boundary to the Ashurst‐Hayden A&Ww, FBC, FC, AgI, AgL Unimpaired Y ‐‐ ‐‐ ‐‐ Dam US‐89 Northcentral Colorado River Lake Powell to Lake Mead A&Wc, FBC, DWS, FC, AgI, AgL Unimpaired Y ‐‐ ‐‐ ‐‐ Little Colorado River Navajo Nation A&Ww, FBC, DWS, FC, AgI, AgL** Unimpaired Y ‐‐ ‐‐ ‐‐ US‐89A Northcentral Colorado River Lake Powell to Lake Mead A&Wc, FBC, DWS, FC, AgI, AgL Unimpaired Y ‐‐ ‐‐ ‐‐ Headwaters to confluence Kanab Creek A&Ww, FBC, DWS, FC, AgI, AgL Impaired N Selenium N ‐‐ W/Colorado River Below unnamed tributary to the US‐93 Northwest Hassayampa River A&We, PBC, AgL Unimpaired Y ‐‐ ‐‐ ‐‐ Buckeye Irrigation Company Canal Alamo Lake 34°14'06"/113°35'00" A&Ww, FBC, FC, AgL Impaired N Ammonia N ‐‐ FC Impaired N Mercury N ‐‐ FBC, AgL, A&Ww Impaired N pH N ‐‐ US‐95 Southwest Colorado River Main Canal to Mexico border A&Ww, FBC*** Impaired Y Selenium N ‐‐ Topock Marsh to Morelos Dam A&Ww, FBC, DWS, FC, AgI, AgL Unimpaired N ‐‐ ‐‐ ‐‐ US‐160 Northeast, Northcentral Little Colorado River Navajo Nation A&Ww, FBC, DWS, FC, AgI, AgL** Unimpaired Y ‐‐ ‐‐ ‐‐ San Juan River New Mexico **** Unimpaired N ‐‐ ‐‐ ‐‐ US‐163 Northeast San Juan River New Mexico **** Unimpaired N ‐‐ ‐‐ ‐‐ Headwaters to the New Mexico US‐180 Northeast, Northcentral San Francisco River A&Awc, FBC, FC, AgI, AgL Unimpaired Y ‐‐ ‐‐ ‐‐ border Headwaters to confluence w/Little Nutrioso Creek A&Wc, FBC, FC, AgI, AgL Not Attaining Y Turbidity Y Turbidity Colorado River Little Colorado River Headwaters to Lyman Reservoir A&Wc, FBC, FC, AgI, AgL Not Attaining Y Turbidity Y Turbidity Suspended Suspended Below Lyman Reservoir to A&Wc, FBC, DWS, FC, AgI, AgL Not Attaining N Sediment Y Sediment confluence w/Puerco River Concentration Concentration Below confluence w/Puerco River to the Navajo Nation Reservation A&Ww, FBC, DWS, FC, AgI, AgL Unimpaired Y ‐‐ ‐‐ ‐‐ boundary Headwaters to confluence US‐191 Southeast, Northeast w/unnamed tributary at A&We, PBC, AgL Unimpaired Y ‐‐ ‐‐ ‐‐ 31°20'36"/109°43'48" Below confluence w/unnamed tributary to U.S./ A&Ww, FBC, FC, AgL Unimpaired Y ‐‐ ‐‐ ‐‐ Mexico border From 32°08'19''/109°50'59'' in the Wilcox Playa A&Ww, FBC, FC, AgL Unimpaired N ‐‐ ‐‐ ‐‐ Sulphur Springs Valley Gila River New Mexico border to the San A&Ww, FBC, FC, AgI, AgL Not Attaining Y E. coli Y E. coli Carlos Indian Reservation Suspended Suspended Boundary A&Ww, FBC, FC, AgI, AgL Not Attaining Y Sediment Y Sediment Concentration Concentration New Mexico border to confluence San Francisco River A&Ww, FBC, FC, AgI, AgL Impaired Y E. coli N ‐‐ w/Gila River Headwaters to the New Mexico A&Wc, FBC, FC, AgI, AgL Unimpaired Y ‐‐ ‐‐ ‐‐ border

Page 5 of 6 ADOT RECEIVING WATERS

Designated Receiving Water Within 1/4 Route ADOT District(s) Receiving Waters Description Pollutants TMDL? Pollutants Uses* Status Mile? Below confluence w/Strayhorse US‐191 Southeast, Northeast Creek to confluence w/San A&Ww, FBC, FC, AgI, AgL Impaired N E. coli N ‐‐ (cont.) (cont.) Francisco River Headwaters to confluence w/Little Nutrioso Creek A&Wc, FBC, FC, AgI, AgL Not Attaining Y Turbidity Y Turbidity Colorado River Little Colorado River Headwaters to Lyman Reservoir A&Wc, FBC, FC, AgI, AgL Not Attaining Y Turbidity Y Turbidity Suspended Suspended Below Lyman Reservoir to A&Wc, FBC, DWS, FC, AgI, AgL Not Attaining N Sediment Y Sediment confluence w/Puerco River Concentration Concentration Headwaters to confluence w/Little Zuni River A&Wc, FBC, FC, AgI, AgL Unimpaired Y ‐‐ ‐‐ ‐‐ Colorado River Headwaters to confluence w/Little Puerco River A&Ww, FBC, DWS, FC, AgI, AgL Unimpaired Y ‐‐ ‐‐ ‐‐ Colorado River San Juan River New Mexico **** Unimpaired N ‐‐ ‐‐ ‐‐ I‐8Southcentral, Southwest Colorado River Main Canal to Mexico border A&Ww, FBC*** Impaired Y Selenium N ‐‐ Gila River GRIC A&We, PBC, AgL** Unimpaired N ‐‐ ‐‐ ‐‐ Gillespie Dam to confluence A&Ww, FBC, FC, AgI, AgL Unimpaired N ‐‐ ‐‐ ‐‐ w/Painted Rock Dam Painted Rock Dam to confluence A&Ww, FBC, FC, AgI, AgL Unimpaired N ‐‐ ‐‐ ‐‐ w/Colorado River Southeast, Southcentral, Headwaters to confluence w/Gila I‐10 San Simon River A&We, PBC, AgL Unimpaired Y ‐‐ ‐‐ ‐‐ Central, Southwest River San Pedro River U.S./ Mexico Border to Redington A&Ww, FBC, FC, AgI, AgL Unimpaired Y ‐‐ ‐‐ ‐‐ From confluence w/Gardner Cienega Creek Canyon to USGS gaging station A&Ww, FBC, FC, AgL OAW Y ‐‐ ‐‐ ‐‐ (#09484600) From unnamed spring to Davidson Canyon A&Ww, FBC, FC, AgL OAW Y ‐‐ ‐‐ ‐‐ confluence w/Cienega Creek Santa Cruz River Agua Nueva WRF outfall to A&Wedw Not Attaining Y Ammonia N ‐‐ Baumgartner Road PBC Impaired Y E. coli N ‐‐ Gila River GRIC A&We, PBC, AgL** Unimpaired Y ‐‐ ‐‐ ‐‐ Below Tempe Town Lake to I‐10 Salt River A&We, PBC Unimpaired Y ‐‐ ‐‐ ‐‐ bridge From City of Avondale WWTP Agua Fria River A&Wedw, PBC Unimpaired Y ‐‐ ‐‐ ‐‐ outfall to confluence w/Gila River Below Buckeye Irrigation Company Impaired, Not Hassayampa River canal to the Gila A&Ww, FBC, FC, AgL NE. coli N ‐‐ Attaining River Colorado River Topock Marsh to Morelos Dam A&Ww, FBC, DWS, FC, AgI, AgL Unimpaired Y ‐‐ ‐‐ ‐‐ I‐15 Northcentral Headwaters to confluence A&Ww, FBC, FC, AgI, AgL Impaired Y Sediment N ‐‐ w/Colorado River A&Ww Impaired Y Selenium N ‐‐ I‐17 Central, Northcentral, New River Headwaters to I‐17 A&Ww, FBC, FC, AgI, AgL Unimpaired Y ‐‐ ‐‐ ‐‐ Northwest Lake Pleasant 33°53'46"/112°16'29" A&Ww, FBC, DWS, FC, AgI, AgL Impaired N Mercury N ‐‐ Agua Fria River From SR‐169 to Lake Pleasant A&Ww, FBC, DWS, FC, AgI, AgL Impaired N E. coli N ‐‐ A&Ww Impaired N Selenium N ‐‐ From confluence of Chino Wash Verde River and Granite Creek to Bartlett Lake A&Ww, FBC, FC, AgI, AgL Unimpaired Y ‐‐ ‐‐ ‐‐ Dam Headwaters to confluence Oak Creek w/unnamed tributary at A&Wc, FBC, DWS, FC, AgI, AgL OAW, Not Attaining N E. coli Y E. coli 34°59'15"/111°44'47 I‐19 Southcentral Nogales Wash Headwaters to confluence A&Ww, PBC, FC Impaired Y Ammonia N ‐‐ w/Potrero Creek A&Ww Impaired Y Chlorine N ‐‐ A&Ww Impaired Y Copper N ‐‐ PBC Impaired Y E. coli N ‐‐ Potrero Creek Below I‐19 to confluence A&Ww, FBC, FC, AgL Impaired Y Chlorine N ‐‐ w/Santa Cruz River A&Ww Impaired Y DO N ‐‐ FBC Impaired Y E. coli N ‐‐ Santa Cruz River Nogales International WWTP A&Wedw, PBC, AgL Impaired Y E. coli N ‐‐ outfall to the Tubac Bridge A&Wedw Impaired Y Ammonia N ‐‐ Northeast, Northcentral, Headwaters to confluence w/Little I‐40 Puerco River A&Ww, FBC, DWS, FC, AgI, AgL Unimpaired Y ‐‐ ‐‐ ‐‐ Northwest Colorado River Below confluence w/Puerco River Little Colorado River to the Navajo Nation Reservation A&Ww, FBC, DWS, FC, AgI, AgL Unimpaired Y ‐‐ ‐‐ ‐‐ boundary From confluence of Chino Wash Verde River and Granite Creek to Bartlett Lake A&Ww, FBC, FC, AgI, AgL Impaired Y Turbidity Y Turbidity Dam Alamo Lake 34°14'06"/113°35'00" A&Ww, FBC, FC, AgL Impaired N Ammonia N ‐‐ FC Impaired N Mercury N ‐‐ FBC, AgL, A&Ww Impaired N pH N ‐‐ Colorado River Topock Marsh to Morelos Dam A&Ww, FBC, DWS, FC, AgI, AgL Unimpaired Y ‐‐ ‐‐ ‐‐

* Designated Uses from Appendix B of Title 18 Chapter 11 of the Administrative Code (18 AAC 11) unless otherwise noted. ** Designated Uses are not listed in Appendix B; therefore, upstream Designated Uses were assumed to apply. *** Designated Uses not listed in Appendix B; information comes from EPA Water Quality Assessment Reports. **** This receiving water is outside of Arizona's boundaries.

1 Some of the receiving water information given for this route differs slightly from that previously provided in the State and US Route Mapping Plan Technical Memo (i.e., receiving water changed/added). These discrepancies are due to inconsistencies between 18 AAC 11 Appendix B, ADEQ's most recent Impaired and Not Attaining Waters lists, and the Impaired Waters eMap tool on ADEQ's website.

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