Lake Averhoff Upstream Tpwd Ramp is a mesotrophic lake in Zavala County, Texas. Water quality is graded B based on 2 sampling years through 2023.
Source: EPA Water Quality Portal sampling records, Texas DNR, last sampled 2023-04-12. Grade methodology: LakeGrade methodology.
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Swimming Safety
Good for swimming, clear water with low algae levels
Water Quality Grade: B, Good
Moderate clarity, visible to about 8.2 ft. Phosphorus level: 30 µg/L. Chlorophyll-a: 3.4 µg/L. Trophic State Index: 48.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 8.2 ft | C |
| Phosphorus | 30 µg/L | C |
| Chlorophyll-a (Algae) | 3.4 µg/L | B |
| Trophic State Index (TSI) | 48 | Mesotrophic |
Moderate nutrients, good water quality
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Location
County Ranking
Ranked #1 of 1 lakes in Zavala County
Nearby Lakes in Zavala County
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More Texas Lake Rankings
Other Grade B Lakes in Texas
Val Verde County · Clarity: 8.2 ft
Val Verde County · Clarity: 5.2 ft
Williamson County · Clarity: 5.6 ft
Coleman County · Clarity: 3.9 ft
Coke County · Clarity: 3.8 ft
Eastland County · Clarity: 3.9 ft
Mesotrophic Lakes in Texas
More records, surveys & data sources
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2023-04-12
Monitoring stations: 1