
| RESERVOIR | CAUSE |
|---|---|
| Reservoirs with threatened drinking water supplies due to secondary drinking water criteria above recommended levels: | |
| 1. Lake Meredith | Chloride, sulfate, total dissolved solids |
| 2. Lake Texoma | Chloride, sulfate, total dissolved solids |
| 3. Lake Granbury | Chloride, sulfate, total dissolved solids |
| 4. Possum Kingdom | Chloride, sulfate, total dissolved solids Lake |
| 5. Lake Sweetwater | Chloride, sulfate, total dissolved solids |
| 6. E.V. Spence Res. | Chloride, sulfate, total dissolved solids |
| Reservoirs designated for but not supporting contact recreation use: | |
| 7. Lake Ray Hubbard | Fecal coliform bacteria (wastewater discharges from Plano, Garland) |
| 8. Lake Houston | Fecal coliform bacteria (wastewater discharges, urban run-off) |
| Reservoirs designated for but not fully supporting aquatic life | |
| 9. Lake Austin | Low dissolved oxygen in 90 acres (releases from bottom water of Lake Travis) |
| 10. Sam Rayburn Reservoir | Low dissolved oxygen in 4,000 acres (water from Angelina River) |
| Reservoirs with fish consumption advisories or bans | |
| 11. Austin Town Lake | High chlordane (non-point source pollution, urban run-off) |
| 12. Donna Res. | PCBs (source unknown) |
| 13. Martin Creek Reservoir | Selenium (cooling water from coal power plant) |
| 14. Brandy Branch Reservoir | Selenium (cooling water from coal power plant) |
| 15. Welsh Res. | Selenium (cooling water from coal power plant) |


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