Bexar County Lake Quality
Texas, 11 lakes — no lake here has enough monitoring data for a grade
Bexar County has 11 monitored lakes — a thin enough sample that one or two stressed lakes can move the county average noticeably. Use the per-lake pages below for what actually matters. No lake in Bexar County has enough sampling behind it for an A–F grade yet. The 11 monitored lakes below carry whatever clarity, phosphorus, and chlorophyll-a measurements exist.
Most of the county's monitored lakes are shallow, under 50 feet, which means wind keeps the water column mixed all summer and sediment-bound phosphorus releases back into the surface layer whenever the bottom is disturbed.
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Quick Answers for Bexar County
Planning a trip? Check special fishing regulations for Victor Braunig Lake — or check the official Texas fishing regulations.
All Lakes in Bexar County
11 lakes · 0 graded, 11 not rated0 graded lakes · 11 not rated, hidden
| # | Lake | Grade | Clarity | Phosphorus | Algae | Trophic | Access |
|---|---|---|---|---|---|---|---|
| NRVictor Braunig LakeBexar | NR | 1.5 ft | 730 µg/L | 91 µg/L | No recent samples | ✓ Public | |
| NRImpoundment LakeBexar | NR | No recent samples | 50 µg/L | 37.2 µg/L | No recent samples | Not recorded | |
| NRWoodlawn LakeBexar | NR | No recent samples | No recent samples | No recent samples | No recent samples | ✓ Public | |
| NRBaker LakeBexar | NR | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| NRKilroy LakeBexar | NR | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| NRBallasetal LakeBexar | NR | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| NRCanvasback LakeBexar | NR | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| NRMitchell LakeBexar | NR | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| NRCassin LakeBexar | NR | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| NRBlue Wing LakeBexar | NR | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| NRCalaveras LakeBexar | NR | No recent samples | No recent samples | No recent samples | No recent samples | ✓ Public |
NR = not rated: there is not enough recent sampling to support a letter. That is EPA Integrated Reporting Category 3 (insufficient information), not a failing grade. How grading works.
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Other Counties in Texas
See how Bexar County stacks up in the national county water-quality rankings, or browse the full directory of graded lakes across all United States (49 states), Canada (Ontario, Québec, Nova Scotia, British Columbia and Newfoundland and Labrador), and 38 other country hubs..
Source: EPA National Aquatic Resource Surveys, 2026.