Table . Future cumulative instream concentrations at accumulation points and required reductions Accumulation Point Predicted Future Parameters Exceeding TCEQ Standard/Screening Level, Stakeholder Target A (2025) and/or Stakeholder Target B (2035) & Concentration Reductions Required TDS TDS TSS TSS Reduction Nitrate- N Reduction Total TP E. coli E. coli See Table 1 for water quality mg/L Reduction mg/L Required Required Reduction Nitrogen Phosphorus (Geomean) Reduction Required mg/L mg/L Required criteria and targets mg/L mg/L #/100 ml Required mg/L mg/L (Geomean) #/100 ml -- -- 13 TCEQ=8 -- -- -- -- 1,612 (a) Target A=8.5 Target B=9 1. Dam 1 - Upper Sink Creek -- -- 18.8 TCEQ=13.8 -- -- -- -- 1,916 (a) Target A=14.3 2. Dam 2 - Tributary to Sink Target B=14.8 Creek -- -- 10.8 TCEQ=5.8 -- -- -- -- 1,930 (a) Target A=6.3 Target B=6.8 3. Dam 3 - Lower Sink Creek -- -- 13.6 TCEQ=8.6 -- -- -- -- 1,272 (a) Target A=9.1 4. Dam 4 - Upper Purgatory Target B=9.6 Creek -- -- 15.3 TCEQ=10.3 -- -- -- -- 3,359 (a) Target A=10.8 Target B=10.8 5. Dam 5 - Lower Purgatory Creek -- -- 28.2 TCEQ=23.2 -- -- -- -- 7,085 (a) Target A=23.7 6. Purgatory Creek at Target B=24.2 confluence 386 Target A=6 -- -- -- -- -- -- -- -- Target B=26 7. Spring Lake
Table . Future cumulative instream concentrations at accumulation points and required reductions Accumulation Point Predicted Future Parameters Exceeding TCEQ Standard/Screening Level, Stakeholder Target A (2025) and/or Stakeholder Target B (2035) & Concentration Reductions Required See Table 1 for water quality criteria and targets TDS mg/L TDS Reduction Required mg/L TSS mg/L TSS Reduction Required mg/L Nitrate- Nitrogen mg/L N Reduction Required mg/L Total Phosphorus mg/L TP Reduction Required mg/L E. coli (Geomean) #/100 ml E. coli Reduction Required (Geomean) #/100 ml 1. Dam 1 - Upper Sink Creek -- -- 13 TCEQ=8 Target A=8.5 Target B=9 -- -- -- -- 1,612 (a) 2. Dam 2 - Tributary to Sink Creek -- -- 18.8 TCEQ=13.8 Target A=14.3 Target B=14.8 -- -- -- -- 1,916 (a) 3. Dam 3 - Lower Sink Creek -- -- 10.8 TCEQ=5.8 Target A=6.3 Target B=6.8 -- -- -- -- 1,930 (a) 4. Dam 4 - Upper Purgatory Creek -- -- 13.6 TCEQ=8.6 Target A=9.1 Target B=9.6 -- -- -- -- 1,272 (a) 5. Dam 5 - Lower Purgatory Creek -- -- 15.3 TCEQ=10.3 Target A=10.8 Target B=10.8 -- -- -- -- 3,359 (a) 6. Purgatory Creek at confluence -- -- 28.2 TCEQ=23.2 Target A=23.7 Target B=24.2 -- -- -- -- 7,085 (a) 7. Spring Lake 386 Target A=6 Target B=26 -- -- -- -- -- -- -- --
I-Introduction-to-the-Watershed-FINAL.docx