Val Verde County Lake Quality
Texas, 4 lakes — no lake here has enough monitoring data for a grade
Val Verde County holds 4 monitored lakes. With a sample that small the county-level summary describes those specific waters, not necessarily every water body in the county. No lake in Val Verde County has enough sampling behind it for an A–F grade yet. The 4 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 Val Verde County
Planning a trip? Check special fishing regulations for Amistad Reserv Devils R Arm Lake — or check the official Texas fishing regulations.
All Lakes in Val Verde County
4 lakes · 0 graded, 4 not rated0 graded lakes · 4 not rated, hidden
| # | Lake | Grade | Clarity | Phosphorus | Algae | Trophic | Access |
|---|---|---|---|---|---|---|---|
| NRAmistad Reserv Devils R Arm LakeVal Verde | NR | No recent samples | No recent samples | No recent samples | No recent samples | ✓ Public | |
| NRAmistad ReservoirVal Verde | NR | No recent samples | No recent samples | No recent samples | No recent samples | ✓ Public | |
| NRMoody LakeVal Verde | NR | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| NRAmistad ReservoirVal Verde | NR | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded |
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 Val Verde 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.