2002 Water Quality Inventory (data from 03/01/1996 to 02/28/2001) Page : 1 Segment ID: 1430 Water body name: Barton Creek Freshwater Stream Colorado River Basin Total size: 38 Miles

Assessment Status of Use Location # of # of Year Assessment Method Support or Concern Location size samples exceedances Mean Aquatic Life Use 2002 Dissolved Oxygen grab average No Concern From Barton Springs Pool upstream dam to a point 2 6.5 19 0 miles upstream of Loop 1 2002 Dissolved Oxygen grab average No Concern From a point 2 miles upstream of Loop 1 to SH 71 13 36 1 2002 Dissolved Oxygen grab average No Concern From confluence with Town Lake to downstream dam 0.5 40 0 of Barton Springs Pool 2002 Dissolved Oxygen grab average No Concern Hays County Line upstream to FM 12 5 15 0 2002 Dissolved Oxygen grab average No Concern SH 71 upstream to Hays County Line 13 20 2

2002 Dissolved Oxygen grab minimum Fully Supporting From Barton Springs Pool upstream dam to a point 2 6.5 19 0 miles upstream of Loop 1 2002 Dissolved Oxygen grab minimum Fully Supporting From a point 2 miles upstream of Loop 1 to SH 71 13 36 0 2002 Dissolved Oxygen grab minimum Fully Supporting From confluence with Town Lake to downstream dam 0.5 40 0 of Barton Springs Pool 2002 Dissolved Oxygen grab minimum Fully Supporting Hays County Line upstream to FM 12 5 15 0 2002 Dissolved Oxygen grab minimum Fully Supporting SH 71 upstream to Hays County Line 13 20 0

2002 Dissolved Oxygen 24hr average Not Assessed From Barton Springs Pool upstream dam to a point 2 6.5 0 miles upstream of Loop 1 2002 Dissolved Oxygen 24hr average Not Assessed From a point 2 miles upstream of Loop 1 to SH 71 13 0 2002 Dissolved Oxygen 24hr average Not Assessed From confluence with Town Lake to downstream dam 0.5 0 of Barton Springs Pool 2002 Dissolved Oxygen 24hr average Not Assessed Hays County Line upstream to FM 12 5 0 2002 Dissolved Oxygen 24hr average Not Assessed SH 71 upstream to Hays County Line 13 0

2002 Dissolved Oxygen 24hr minimum Not Assessed From Barton Springs Pool upstream dam to a point 2 6.5 0 miles upstream of Loop 1 2002 Dissolved Oxygen 24hr minimum Not Assessed From a point 2 miles upstream of Loop 1 to SH 71 13 0 2002 Dissolved Oxygen 24hr minimum Not Assessed From confluence with Town Lake to downstream dam 0.5 0 of Barton Springs Pool 2002 Dissolved Oxygen 24hr minimum Not Assessed Hays County Line upstream to FM 12 5 0 2002 Water Quality Inventory (data from 03/01/1996 to 02/28/2001) Page : 2 Segment ID: 1430 Water body name: Barton Creek Freshwater Stream Colorado River Basin Total size: 38 Miles

Assessment Status of Use Location # of # of Year Assessment Method Support or Concern Location size samples exceedances Mean

Aquatic Life Use (continued) 2002 Dissolved Oxygen 24hr minimum Not Assessed SH 71 upstream to Hays County Line 13 0

2002 Acute Metals in water Not Assessed From confluence with Town Lake to downstream dam 0.5 1 of Barton Springs Pool 2002 Acute Metals in water Lead No Concern-Limited From a point 2 miles upstream of Loop 1 to SH 71 13 8 0 Data

2002 Chronic Metals in water Not Assessed From confluence with Town Lake to downstream dam 0.5 1 of Barton Springs Pool 2002 Chronic Metals in water Lead No Concern-Limited From a point 2 miles upstream of Loop 1 to SH 71 13 8 0.933 Data

2002 Macrobenthos Community Fully Supporting From Barton Springs Pool upstream dam to a point 2 6.5 4 1 29 miles upstream of Loop 1 2002 Macrobenthos Community Fully Supporting From a point 2 miles upstream of Loop 1 to SH 71 13 18 6 29.7 2002 Macrobenthos Community Use Concern-Limited From confluence with Town Lake to downstream dam 0.5 1 1 19 Data of Barton Springs Pool

2002 Overall Aquatic Life Use Fully Supporting From Barton Springs Pool upstream dam to a point 2 6.5 miles upstream of Loop 1 2002 Overall Aquatic Life Use Fully Supporting From a point 2 miles upstream of Loop 1 to SH 71 13 2002 Overall Aquatic Life Use Fully Supporting From confluence with Town Lake to downstream dam 0.5 of Barton Springs Pool 2002 Overall Aquatic Life Use Fully Supporting Hays County Line upstream to FM 12 5 2002 Overall Aquatic Life Use Fully Supporting SH 71 upstream to Hays County Line 13

Contact Recreation Use 2002 E. coli single sample Not Assessed From Barton Springs Pool upstream dam to a point 2 6.5 0 miles upstream of Loop 1 2002 E. coli single sample Not Assessed From a point 2 miles upstream of Loop 1 to SH 71 13 1 0 2002 Water Quality Inventory (data from 03/01/1996 to 02/28/2001) Page : 3 Segment ID: 1430 Water body name: Barton Creek Freshwater Stream Colorado River Basin Total size: 38 Miles

Assessment Status of Use Location # of # of Year Assessment Method Support or Concern Location size samples exceedances Mean

Contact Recreation Use (continued) 2002 E. coli single sample Fully Supporting From confluence with Town Lake to downstream dam 0.5 17 1 of Barton Springs Pool 2002 E. coli single sample Not Assessed Hays County Line upstream to FM 12 5 0 2002 E. coli single sample Not Assessed SH 71 upstream to Hays County Line 13 0

2002 E. coli geometric mean Not Assessed From Barton Springs Pool upstream dam to a point 2 6.5 0 miles upstream of Loop 1 2002 E. coli geometric mean Not Assessed From a point 2 miles upstream of Loop 1 to SH 71 13 1 69 2002 E. coli geometric mean Fully Supporting From confluence with Town Lake to downstream dam 0.5 17 81.4 of Barton Springs Pool 2002 E. coli geometric mean Not Assessed Hays County Line upstream to FM 12 5 0 2002 E. coli geometric mean Not Assessed SH 71 upstream to Hays County Line 13 0

2002 Fecal coliform single sample Fully Supporting From Barton Springs Pool upstream dam to a point 2 6.5 15 1 miles upstream of Loop 1 2002 Fecal coliform single sample Fully Supporting From a point 2 miles upstream of Loop 1 to SH 71 13 21 1 2002 Fecal coliform single sample Fully Supporting From confluence with Town Lake to downstream dam 0.5 33 3 of Barton Springs Pool 2002 Fecal coliform single sample Fully Supporting Hays County Line upstream to FM 12 5 15 1 2002 Fecal coliform single sample Fully Supporting SH 71 upstream to Hays County Line 13 19 1

2002 Fecal coliform geometric mean Fully Supporting From Barton Springs Pool upstream dam to a point 2 6.5 15 10 miles upstream of Loop 1 2002 Fecal coliform geometric mean Fully Supporting From a point 2 miles upstream of Loop 1 to SH 71 13 21 28.6 2002 Fecal coliform geometric mean Fully Supporting From confluence with Town Lake to downstream dam 0.5 33 81.7 of Barton Springs Pool 2002 Fecal coliform geometric mean Fully Supporting Hays County Line upstream to FM 12 5 15 58 2002 Fecal coliform geometric mean Fully Supporting SH 71 upstream to Hays County Line 13 19 36.7 2002 Water Quality Inventory (data from 03/01/1996 to 02/28/2001) Page : 4 Segment ID: 1430 Water body name: Barton Creek Freshwater Stream Colorado River Basin Total size: 38 Miles

Assessment Status of Use Location # of # of Year Assessment Method Support or Concern Location size samples exceedances Mean

Contact Recreation Use (continued) 2002 Overall Recreation Use Fully Supporting From Barton Springs Pool upstream dam to a point 2 6.5 miles upstream of Loop 1 2002 Overall Recreation Use Fully Supporting From a point 2 miles upstream of Loop 1 to SH 71 13 2002 Overall Recreation Use Fully Supporting From confluence with Town Lake to downstream dam 0.5 of Barton Springs Pool 2002 Overall Recreation Use Fully Supporting Hays County Line upstream to FM 12 5 2002 Overall Recreation Use Fully Supporting SH 71 upstream to Hays County Line 13

General Use 2002 Water Temperature Fully Supporting From Barton Springs Pool upstream dam to a point 2 6.5 23 0 miles upstream of Loop 1 2002 Water Temperature Fully Supporting From a point 2 miles upstream of Loop 1 to SH 71 13 39 3 2002 Water Temperature Fully Supporting From confluence with Town Lake to downstream dam 0.5 41 0 of Barton Springs Pool 2002 Water Temperature Fully Supporting Hays County Line upstream to FM 12 5 16 1 2002 Water Temperature Fully Supporting SH 71 upstream to Hays County Line 13 22 0

2002 pH No Concern-Limited From Barton Springs Pool upstream dam to a point 2 6.5 21 0 Data miles upstream of Loop 1 2002 pH Fully Supporting From a point 2 miles upstream of Loop 1 to SH 71 13 38 1 2002 pH Fully Supporting From confluence with Town Lake to downstream dam 0.5 43 0 of Barton Springs Pool 2002 pH Fully Supporting Hays County Line upstream to FM 12 5 16 0 2002 pH Fully Supporting SH 71 upstream to Hays County Line 13 22 0

2002 Chloride Fully Supporting From Barton Springs Pool upstream dam to a point 2 6.5 54 30.6 miles upstream of Loop 1 2002 Chloride Fully Supporting From a point 2 miles upstream of Loop 1 to SH 71 13 54 30.6 2002 Chloride Fully Supporting From confluence with Town Lake to downstream dam 0.5 54 30.6 of Barton Springs Pool 2002 Water Quality Inventory (data from 03/01/1996 to 02/28/2001) Page : 5 Segment ID: 1430 Water body name: Barton Creek Freshwater Stream Colorado River Basin Total size: 38 Miles

Assessment Status of Use Location # of # of Year Assessment Method Support or Concern Location size samples exceedances Mean

General Use (continued) 2002 Chloride Fully Supporting Hays County Line upstream to FM 12 5 54 30.6 2002 Chloride Fully Supporting SH 71 upstream to Hays County Line 13 54 30.6

2002 Sulfate Fully Supporting From Barton Springs Pool upstream dam to a point 2 6.5 53 40 miles upstream of Loop 1 2002 Sulfate Fully Supporting From a point 2 miles upstream of Loop 1 to SH 71 13 53 40 2002 Sulfate Fully Supporting From confluence with Town Lake to downstream dam 0.5 53 40 of Barton Springs Pool 2002 Sulfate Fully Supporting Hays County Line upstream to FM 12 5 53 40 2002 Sulfate Fully Supporting SH 71 upstream to Hays County Line 13 53 40

2002 Total Dissolved Solids Fully Supporting From Barton Springs Pool upstream dam to a point 2 6.5 173 396 miles upstream of Loop 1 2002 Total Dissolved Solids Fully Supporting From a point 2 miles upstream of Loop 1 to SH 71 13 173 396 2002 Total Dissolved Solids Fully Supporting From confluence with Town Lake to downstream dam 0.5 173 396 of Barton Springs Pool 2002 Total Dissolved Solids Fully Supporting Hays County Line upstream to FM 12 5 173 396 2002 Total Dissolved Solids Fully Supporting SH 71 upstream to Hays County Line 13 173 396

2002 Overall General Use Fully Supporting From Barton Springs Pool upstream dam to a point 2 6.5 miles upstream of Loop 1 2002 Overall General Use Fully Supporting From a point 2 miles upstream of Loop 1 to SH 71 13 2002 Overall General Use Fully Supporting From confluence with Town Lake to downstream dam 0.5 of Barton Springs Pool 2002 Overall General Use Fully Supporting Hays County Line upstream to FM 12 5 2002 Overall General Use Fully Supporting SH 71 upstream to Hays County Line 13

Fish Consumption Use 2002 Overall Fish Consumption Use Not Assessed From Barton Springs Pool upstream dam to a point 2 6.5 miles upstream of Loop 1 2002 Water Quality Inventory (data from 03/01/1996 to 02/28/2001) Page : 6 Segment ID: 1430 Water body name: Barton Creek Freshwater Stream Colorado River Basin Total size: 38 Miles

Assessment Status of Use Location # of # of Year Assessment Method Support or Concern Location size samples exceedances Mean

Fish Consumption Use (continued) 2002 Overall Fish Consumption Use Not Assessed From a point 2 miles upstream of Loop 1 to SH 71 13 2002 Overall Fish Consumption Use Not Assessed From confluence with Town Lake to downstream dam 0.5 of Barton Springs Pool 2002 Overall Fish Consumption Use Not Assessed Hays County Line upstream to FM 12 5 2002 Overall Fish Consumption Use Not Assessed SH 71 upstream to Hays County Line 13

Overall Use Support 2002 Fully Supporting From Barton Springs Pool upstream dam to a point 2 6.5 miles upstream of Loop 1 2002 Fully Supporting From a point 2 miles upstream of Loop 1 to SH 71 13 2002 Fully Supporting From confluence with Town Lake to downstream dam 0.5 of Barton Springs Pool 2002 Fully Supporting Hays County Line upstream to FM 12 5 2002 Fully Supporting SH 71 upstream to Hays County Line 13

Nutrient Enrichment Concern 2002 Ammonia Nitrogen No Concern From Barton Springs Pool upstream dam to a point 2 6.5 23 1 miles upstream of Loop 1 2002 Ammonia Nitrogen No Concern From a point 2 miles upstream of Loop 1 to SH 71 13 39 0 2002 Ammonia Nitrogen No Concern From confluence with Town Lake to downstream dam 0.5 38 1 of Barton Springs Pool 2002 Ammonia Nitrogen No Concern Hays County Line upstream to FM 12 5 15 1 2002 Ammonia Nitrogen No Concern SH 71 upstream to Hays County Line 13 20 0

2002 Nitrite + Nitrate Nitrogen Not Assessed From Barton Springs Pool upstream dam to a point 2 6.5 23 0 miles upstream of Loop 1 2002 Nitrite + Nitrate Nitrogen No Concern From a point 2 miles upstream of Loop 1 to SH 71 13 39 0 2002 Nitrite + Nitrate Nitrogen No Concern From confluence with Town Lake to downstream dam 0.5 40 0 of Barton Springs Pool 2002 Water Quality Inventory (data from 03/01/1996 to 02/28/2001) Page : 7 Segment ID: 1430 Water body name: Barton Creek Freshwater Stream Colorado River Basin Total size: 38 Miles

Assessment Status of Use Location # of # of Year Assessment Method Support or Concern Location size samples exceedances Mean

Nutrient Enrichment Concern (continued) 2002 Nitrite + Nitrate Nitrogen No Concern Hays County Line upstream to FM 12 5 15 0 2002 Nitrite + Nitrate Nitrogen No Concern SH 71 upstream to Hays County Line 13 19 0

2002 Orthophosphorus Not Assessed From Barton Springs Pool upstream dam to a point 2 6.5 23 0 miles upstream of Loop 1 2002 Orthophosphorus No Concern From a point 2 miles upstream of Loop 1 to SH 71 13 40 0 2002 Orthophosphorus No Concern From confluence with Town Lake to downstream dam 0.5 41 0 of Barton Springs Pool 2002 Orthophosphorus No Concern Hays County Line upstream to FM 12 5 16 0 2002 Orthophosphorus No Concern SH 71 upstream to Hays County Line 13 20 0

2002 Total Phosphorus No Concern From Barton Springs Pool upstream dam to a point 2 6.5 24 0 miles upstream of Loop 1 2002 Total Phosphorus No Concern From a point 2 miles upstream of Loop 1 to SH 71 13 37 0 2002 Total Phosphorus No Concern From confluence with Town Lake to downstream dam 0.5 35 0 of Barton Springs Pool 2002 Total Phosphorus No Concern Hays County Line upstream to FM 12 5 16 0 2002 Total Phosphorus No Concern SH 71 upstream to Hays County Line 13 20 0

2002 Overall Nutrient Enrichment No Concern From Barton Springs Pool upstream dam to a point 2 6.5 Concerns miles upstream of Loop 1 2002 Overall Nutrient Enrichment No Concern From a point 2 miles upstream of Loop 1 to SH 71 13 Concerns 2002 Overall Nutrient Enrichment No Concern From confluence with Town Lake to downstream dam 0.5 Concerns of Barton Springs Pool 2002 Overall Nutrient Enrichment No Concern Hays County Line upstream to FM 12 5 Concerns 2002 Overall Nutrient Enrichment No Concern SH 71 upstream to Hays County Line 13 Concerns 2002 Water Quality Inventory (data from 03/01/1996 to 02/28/2001) Page : 8 Segment ID: 1430 Water body name: Barton Creek Freshwater Stream Colorado River Basin Total size: 38 Miles

Assessment Status of Use Location # of # of Year Assessment Method Support or Concern Location size samples exceedances Mean Algal Growth Concern 2002 Chlorophyll a No Concern From Barton Springs Pool upstream dam to a point 2 6.5 13 0 miles upstream of Loop 1 2002 Chlorophyll a No Concern From a point 2 miles upstream of Loop 1 to SH 71 13 25 0 2002 Chlorophyll a No Concern From confluence with Town Lake to downstream dam 0.5 30 0 of Barton Springs Pool 2002 Chlorophyll a Not Assessed Hays County Line upstream to FM 12 5 7 0 2002 Chlorophyll a Not Assessed SH 71 upstream to Hays County Line 13 7 0

Sediment Contaminants Concern 2002 85% Metals in sediment Arsenic Not Assessed From a point 2 miles upstream of Loop 1 to SH 71 13 9 3 2002 85% Metals in sediment Cadmium Concern From Barton Springs Pool upstream dam to a point 2 6.5 17 5 miles upstream of Loop 1 2002 85% Metals in sediment Lead Concern From Barton Springs Pool upstream dam to a point 2 6.5 17 6 miles upstream of Loop 1 2002 85% Metals in sediment Silver Concern From Barton Springs Pool upstream dam to a point 2 6.5 14 4 miles upstream of Loop 1 2002 85% Metals in sediment Silver Not Assessed From a point 2 miles upstream of Loop 1 to SH 71 13 7 4 2002 85% Metals in sediment Zinc Concern From Barton Springs Pool upstream dam to a point 2 6.5 17 6 miles upstream of Loop 1

2002 PEL Organics in sediment Concern From Barton Springs Pool upstream dam to a point 2 6.5 14 7 Benzo(a)anthracene miles upstream of Loop 1 2002 PEL Organics in sediment Concern From Barton Springs Pool upstream dam to a point 2 6.5 13 5 Benzo(a)pyrene miles upstream of Loop 1 2002 PEL Organics in sediment Concern From Barton Springs Pool upstream dam to a point 2 6.5 14 7 Chrysene miles upstream of Loop 1 2002 PEL Organics in sediment Concern From Barton Springs Pool upstream dam to a point 2 6.5 14 8 Fluoranthene miles upstream of Loop 1 2002 PEL Organics in sediment Concern From Barton Springs Pool upstream dam to a point 2 6.5 14 8 Phenanthrene miles upstream of Loop 1 2002 Water Quality Inventory (data from 03/01/1996 to 02/28/2001) Page : 9 Segment ID: 1430 Water body name: Barton Creek Freshwater Stream Colorado River Basin Total size: 38 Miles

Assessment Status of Use Location # of # of Year Assessment Method Support or Concern Location size samples exceedances Mean

Sediment Contaminants Concern (continued) 2002 PEL Organics in sediment Pyrene Concern From Barton Springs Pool upstream dam to a point 2 6.5 14 8 miles upstream of Loop 1

2002 85% Organics in sediment Concern From Barton Springs Pool upstream dam to a point 2 6.5 14 7 Benzo(a)anthracene miles upstream of Loop 1 2002 85% Organics in sediment Concern From Barton Springs Pool upstream dam to a point 2 6.5 13 5 Benzo(a)pyrene miles upstream of Loop 1 2002 85% Organics in sediment Concern From Barton Springs Pool upstream dam to a point 2 6.5 11 7 Benzo(b)fluoranthene miles upstream of Loop 1 2002 85% Organics in sediment Concern From Barton Springs Pool upstream dam to a point 2 6.5 14 7 Benzo(ghi)perylene miles upstream of Loop 1 2002 85% Organics in sediment Concern From Barton Springs Pool upstream dam to a point 2 6.5 11 6 Benzo(k)fluoranthene miles upstream of Loop 1 2002 85% Organics in sediment Concern From Barton Springs Pool upstream dam to a point 2 6.5 14 7 Chrysene miles upstream of Loop 1 2002 85% Organics in sediment Concern From Barton Springs Pool upstream dam to a point 2 6.5 14 4 Dibenz(a,h)anthracene miles upstream of Loop 1 2002 85% Organics in sediment Endrin No Concern From Barton Springs Pool upstream dam to a point 2 6.5 14 1 miles upstream of Loop 1 2002 85% Organics in sediment Concern From Barton Springs Pool upstream dam to a point 2 6.5 14 9 Fluoranthene miles upstream of Loop 1 2002 85% Organics in sediment No Concern From Barton Springs Pool upstream dam to a point 2 6.5 14 2 Fluorene miles upstream of Loop 1 2002 85% Organics in sediment No Concern From Barton Springs Pool upstream dam to a point 2 6.5 14 1 Heptachlor miles upstream of Loop 1 2002 85% Organics in sediment Concern From Barton Springs Pool upstream dam to a point 2 6.5 14 8 Ideno(1,2,3-cd)pyrene miles upstream of Loop 1 2002 85% Organics in sediment Concern From Barton Springs Pool upstream dam to a point 2 6.5 14 8 Phenanthrene miles upstream of Loop 1 2002 85% Organics in sediment Pyrene Concern From Barton Springs Pool upstream dam to a point 2 6.5 14 8 miles upstream of Loop 1 2002 Water Quality Inventory (data from 03/01/1996 to 02/28/2001) Page : 10 Segment ID: 1430 Water body name: Barton Creek Freshwater Stream Colorado River Basin Total size: 38 Miles

Assessment Status of Use Location # of # of Year Assessment Method Support or Concern Location size samples exceedances Mean

Sediment Contaminants Concern (continued) 2002 Organics in sediment Not Assessed From a point 2 miles upstream of Loop 1 to SH 71 13 7

2002 Overall Sediment Contaminant Concern From Barton Springs Pool upstream dam to a point 2 6.5 Concerns miles upstream of Loop 1 2002 Overall Sediment Contaminant Not Assessed From a point 2 miles upstream of Loop 1 to SH 71 13 Concerns 2002 Overall Sediment Contaminant Not Assessed From confluence with Town Lake to downstream dam 0.5 Concerns of Barton Springs Pool 2002 Overall Sediment Contaminant Not Assessed Hays County Line upstream to FM 12 5 Concerns 2002 Overall Sediment Contaminant Not Assessed SH 71 upstream to Hays County Line 13 Concerns

Fish Tissue Contaminants Concern 2002 Overall Fish Tissue Contaminant Not Assessed From Barton Springs Pool upstream dam to a point 2 6.5 Concerns miles upstream of Loop 1 2002 Overall Fish Tissue Contaminant Not Assessed From a point 2 miles upstream of Loop 1 to SH 71 13 Concerns 2002 Overall Fish Tissue Contaminant Not Assessed From confluence with Town Lake to downstream dam 0.5 Concerns of Barton Springs Pool 2002 Overall Fish Tissue Contaminant Not Assessed Hays County Line upstream to FM 12 5 Concerns 2002 Overall Fish Tissue Contaminant Not Assessed SH 71 upstream to Hays County Line 13 Concerns

Narrative Criteria Concern 2002 Overall Narrative Criteria Concerns No Concern From Barton Springs Pool upstream dam to a point 2 6.5 miles upstream of Loop 1 2002 Overall Narrative Criteria Concerns No Concern From a point 2 miles upstream of Loop 1 to SH 71 13

2002 Water Quality Inventory (data from 03/01/1996 to 02/28/2001) Page : 11 Segment ID: 1430 Water body name: Barton Creek Freshwater Stream Colorado River Basin Total size: 38 Miles

Assessment Status of Use Location # of # of Year Assessment Method Support or Concern Location size samples exceedances Mean

Narrative Criteria Concern (continued) 2002 Overall Narrative Criteria Concerns No Concern From confluence with Town Lake to downstream dam 0.5 of Barton Springs Pool 2002 Overall Narrative Criteria Concerns No Concern Hays County Line upstream to FM 12 5

2002 Overall Narrative Criteria Concerns No Concern SH 71 upstream to Hays County Line 13

Overall Secondary Concern 2002 Concern From Barton Springs Pool upstream dam to a point 2 6.5 miles upstream of Loop 1 2002 No Concern From a point 2 miles upstream of Loop 1 to SH 71 13 2002 No Concern From confluence with Town Lake to downstream dam 0.5 of Barton Springs Pool 2002 No Concern Hays County Line upstream to FM 12 5 2002 No Concern SH 71 upstream to Hays County Line 13