Phelps Lake
Rockwall County, Texas45 acresView mapDirections
TCEQ publishes the water-quality measurements for Phelps Lake. Here is what has been measured.
- Public access
- Limited data
Phelps Lake in Rockwall County, Texas has water-quality measurements published by TCEQ, shown here as reported. Water clarity: 0.6 ft visibility. Phosphorus: 180 µg/L. Chlorophyll-a (algae): 22 µg/L. Surface area: 45 acres.
Phelps Lake is a 45-acre lake in Rockwall County, Texas. Limited fish-species data available. Public access is available.
Source: EPA Water Quality Portal sampling records, TCEQ, last sampled 2020-08-20. Methodology: how these readings are compared.
Phelps Lake covers about 45 acres in Rockwall County. Vrbo is where to look for cabins and lake homes around Phelps Lake, and Booking.com and Expedia search hotels near the lake for your dates.
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Phelps Lake is safe to swim in today is a call for the Texas Commission on Environmental Quality and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Phelps Lake
These are the measurements TCEQ publishes for Phelps Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Very murky, less than 0.6 ft of visibility. Phosphorus 180 µg/L. Chlorophyll-a 22 µg/L. TSI 75.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 0.6ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 180µg/L | Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. |
| Chlorophyll-a (algae) | 22µg/L | Measured, not scored The green pigment in algae — a direct measure of how much algae is in the water. |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 75 | Hypereutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Very high nutrients, dense algae, poor clarity
Ask about Phelps Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
45 acres
Public access
Yes
Listed by TCEQ
No bathymetric survey has been published for Phelps Lake, so its depth is not documented here.
Stays via Stay22
Stays near Phelps Lake
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Fishing Phelps Lake
Reservoir Info (USACE NID)
Phelps Lake is a man-made reservoir impounded by the Upper East Fk Laterals WS SCS Site 4b Dam (completed 1955), built primarily for flood risk reduction on the Tr-Squabble Creek; earth-type dam, 40 ft tall and 1,594 ft long.
- Surface area
- 45 ac
- Normal storage
- 132 ac-ft
- Max storage
- 646 ac-ft
- Drainage area
- 1.17 sq mi
- Hazard class
- High
- Owner
- KAUFMAN VAN ZANDT ROCKWALL SWCD;ROCKWALL COUNTY
All listed purposes: Flood Risk Reduction;Fire Protection, Stock, Or Small Fish Pond;Recreation.
Source: USACE National Inventory of Dams, NID ID TX00804 · Operator website · Matched by proximity (0.07 km)
Nearby Lakes in Rockwall County
Frequently asked questions about Phelps Lake
Where is Phelps Lake?
- Phelps Lake is a lake in Rockwall County, Texas. Its water-quality measurements are published by TCEQ and shown on this page as reported.
What is the water quality of Phelps Lake?
- Phelps Lake in Rockwall County, Texas has water-quality measurements published by TCEQ, shown here as reported. Water clarity: 0.6 ft visibility. Phosphorus: 180 µg/L. Chlorophyll-a (algae): 22 µg/L. Surface area: 45 acres.
Is Phelps Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Can I fish at Phelps Lake?
- Public access to Phelps Lake is listed as yes on the lake record. Seasons, size and bag limits, and whether you need a license are set by Texas's fish and wildlife agency, so check its current regulations before you go.
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Where this data comes from
4 measurements from 1 monitoring station, 2020. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- USGS Texas Water Science Center
USGS-TX4 samples · 2020
Monitoring station identifiers (1)
EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.