White Rock Lake
Dallas County, Texas1,119 acresView mapDirections
TCEQ publishes the water-quality measurements for White Rock Lake. Here is what has been measured.
- Hypereutrophic
- 44 ft max depth
- Public access
- Limited data
White Rock Lake in Dallas County, Texas has water-quality measurements published by TCEQ, shown here as reported. Water clarity: 1.7 ft visibility. Phosphorus: 80 µg/L. Chlorophyll-a (algae): 57.6 µg/L. Surface area: 1119 acres.
White Rock Lake is a 1,119-acre highly nutrient-loaded hypereutrophic lake in Dallas County, Texas with an estimated average depth of about 44 feet. Phosphorus level is declining over recent sampling years. Limited fish-species data available. Public access is available with 1 public boat landing. Compared to the 1 other monitored lakes in Dallas County, White Rock Lake ranks #2 for water quality.
Source: EPA Water Quality Portal sampling records, TCEQ, last sampled 2025-12-10. Methodology: how these readings are compared.
White Rock Lake covers about 1,100 acres in Dallas County. It has one public boat landing. If you are planning to stay, you can search lake houses and cabins around White Rock Lake on Vrbo, or look for a hotel room near the lake on Booking.com or Expedia.
What White Rock Lake is good for
From access and monitoring records, not editorial picks.
- Boat launch1 documented ramp
- Big water1,119 acres
Swimming conditions
Readings onlyLimited data
Based on clarity and algae readings from past sampling — there is no live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether White Rock 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 White Rock Lake
These are the measurements TCEQ publishes for White Rock 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 1.7 ft of visibility. Phosphorus 80 µg/L. Chlorophyll-a 57.6 µg/L. TSI 69.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 1.7ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 80µg/L | Poor GoodFairPoor |
| Chlorophyll-a (algae) | 57.6µg/L | Poor GoodFairPoor |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 69 | Hypereutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Very high nutrients, dense algae, poor clarity
Ask about White Rock Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
~44 ft est.
Surface area
1,119 acres
Public access
Yes
Listed by TCEQ
Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. Texas has not published bathymetry for White Rock Lake.
Lake Size & Watershed
Watershed (drainage) area
101 sq mi
HydroLAKES / HydroSHEDS
Shoreline
7.2 mi
HydroLAKES / HydroSHEDS
Elevation
469 ft
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth here is modelled, not surveyed — HydroLAKES v1.0 estimates lake depth from surrounding terrain rather than from soundings. Treat it as an approximation, and prefer a state bathymetric survey where one exists.
Recreation & Access
- White Rock Lake (West)Public
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Stays via Stay22
Stays near White Rock Lake
Compare lakeside cabins, hotels, and vacation rentals near White Rock Lake in Dallas 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. The water-quality readings cover nutrients and algae, not lodging. Cabins and rentals around White Rock Lake are listed below.
Top-rated places to stay near White Rock Lake
Prices for Oct 23–25, 4 adults. Change dates on the map below.
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Planning a trip? Cabins and lodging at White Rock Lake → · more Texas lake trips
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Fishing White Rock Lake
Water Quality Trend: Stable
Based on 6 years of monitoring (2020–2025).
Water clarity
Stable6 years
Phosphorus
Worsening+4 µg/L/yr4 years
Chlorophyll-a
Improving-3.69 µg/L/yr4 years
Reservoir Info (USACE NID)
White Rock Lake is a man-made reservoir impounded by the White Rock Dam (completed 1911), built primarily for water supply on the White Rock Creek; earth-type dam, 47 ft tall and 2,100 ft long.
- Surface area
- 1,119 ac
- Normal storage
- 9,004 ac-ft
- Max storage
- 39,400 ac-ft
- Drainage area
- 100 sq mi
- Hazard class
- High
- Owner
- CITY OF DALLAS
All listed purposes: Water Supply;Recreation.
Source: USACE National Inventory of Dams, NID ID TX00840 · Operator website
Nearby Lakes in Dallas County
Frequently asked questions about White Rock Lake
Where is White Rock Lake?
- White Rock Lake is a lake in Dallas County, Texas. Its water-quality measurements are published by TCEQ and shown on this page as reported.
What is the water quality of White Rock Lake?
- White Rock Lake in Dallas County, Texas has water-quality measurements published by TCEQ, shown here as reported. Water clarity: 1.7 ft visibility. Phosphorus: 80 µg/L. Chlorophyll-a (algae): 57.6 µg/L. Surface area: 1119 acres.
Is White Rock Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is White Rock Lake?
- No published bathymetric survey covers White Rock Lake, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 44 feet, but that is a modelled estimate derived from surrounding terrain rather than a measurement on the water, so treat it as approximate. The lake covers 1119 acres.
Are there boat ramps on White Rock Lake?
- White Rock Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include White Rock Lake (West). Public access is listed as yes.
Can I fish at White Rock Lake?
- White Rock Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. 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
52 measurements from 1 monitoring station, 2020–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Texas Commission on Environmental Quality
TCEQMAIN52 samples · 2020–2025
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.
Other records on this page
Lake size & watershed from HydroLAKES (HydroSHEDS)
Named boat-access points from the USGS National Boat Ramps inventory