Fennessey Flat
Fennessey Flat in Refugio County, Texas is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 80 acres.
- Area
- 80 acres
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Why Fennessey Flat has no grade
We grade a lake only when the monitoring record supports a letter: at least three phosphorus or chlorophyll-a samples in the last ten years, scored against EPA National Lakes Assessment thresholds for this lake’s ecoregion. For Fennessey Flat, no water-quality sampling on record for this lake.
Not Rated is not an F. It is EPA Integrated Reporting Category 3 — insufficient information. The water here may be excellent or poor; nobody has measured enough of it to say. Everything below that has been measured is still reported on this page.
Sampling is run by TCEQ and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Fennessey Flat is a 80-acre lake in Refugio County, Texas.
Source: EPA Water Quality Portal sampling records, TCEQ, last sampled recent years. Grade methodology: LakeQuality methodology.
Watch Fennessey Flat water quality
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Swimming Safety
Not ratedElevated nutrients
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Fennessey Flat
These readings exist but are not enough for an A–F grade — see why.
No clarity data. Trophic State Index: undefined.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) |
Where to stay near Fennessey Flat
Compare lakeside cabins, hotels, and vacation rentals near Fennessey Flat in Refugio County, Texas — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.
Top-rated places to stay near Fennessey Flat
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 80 acres |
No bathymetric survey has been published for Fennessey Flat, so its depth is not documented here.
Fishing Fennessey Flat
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Frequently asked questions about Fennessey Flat
Where is Fennessey Flat?
- Fennessey Flat is a lake in Refugio County, Texas. LakeQuality has not rated this lake (UNRATED) — no water-quality sampling on record for this lake.
What is the water quality grade for Fennessey Flat?
- Fennessey Flat in Refugio County, Texas is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 80 acres.
Is Fennessey Flat safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Fennessey Flat is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
Explore Fennessey Flat across LakeQuality
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Where this data comes from
Measurements for Fennessey Flat come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.