Lake Crook Mid Lake
Lamar County, TexasView mapDirections
Nutrients and algae run well above the regional average.
↓ down from D at the last regrade
- Hypereutrophic
- Impaired · Algal growth
- #3 of 3 in the county
- 24 ft max depth
- Public access
- Limited data
Lake Crook Mid Lake in Lamar County, Texas has a water quality grade of F (Algae-prone). Water clarity: 1.6 ft visibility. Phosphorus: 85 µg/L. Chlorophyll-a (algae): 50 µg/L.
- Clarity
- 1.6 ft
- Max depth
- ~24 ft est.
- Type
- Hypereutrophic
- Phosphorus
- 85 µg/L
- Chlorophyll-a
- 50 µg/L
- Trend
- ↑ Improving
- Public access
- Yes
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Stays near Lake Crook Mid Lake
Compare lakeside cabins, hotels, and vacation rentals near Lake Crook Mid Lake in Lamar 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 grade measures nutrients and algae, not lodging — cabins and rentals around Lake Crook Mid Lake are listed below.
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Lake Crook Mid Lake is a highly nutrient-loaded hypereutrophic lake in Lamar County, Texas with an estimated average depth of about 24 feet. Water quality is graded F based on 2 sampling years through 2025. Overall water quality is improving over recent sampling years. Limited fish-species data available. Public access is available with 2 public boat landings. Compared to the 2 other monitored lakes in Lamar County, Lake Crook Mid Lake ranks #3 for water quality.
Source: EPA Water Quality Portal sampling records, TCEQ, last sampled 2025-09-10. Grade methodology: LakeQuality methodology.
What Lake Crook Mid Lake is good for
From access and monitoring records, not editorial picks.
- Boat launch2 documented ramps
Swimming Safety
Grade onlyLimited data
Based on clarity and algae grades from past sampling — we do not hold live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
The F is nutrients and algae, not a swimming clearance. Lake Crook Mid Lake is listed impaired under Clean Water Act §303(d) (IR 5) for algal growth. Check local advisories before you swim.
Water Quality Grade: F (Algae-prone)
Very murky, less than 1.6 ft of visibility. Phosphorus 85 µg/L. Chlorophyll-a 50 µg/L. TSI 69. The letter is not a swimming clearance.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 1.6 ft | Not graded |
| Phosphorus | 85 µg/L | Poor |
| Chlorophyll-a (Algae) | 50 µg/L | Poor |
| Trophic State Index (TSI) | 69 | Hypereutrophic |
Very high nutrients, dense algae, poor clarity
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | ~24 ft est. |
| Public Access | Yes |
Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. Texas has not published bathymetry for Lake Crook Mid Lake.
Lake Size & Watershed
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
- West Lake CrookPublic
- East Lake CrookPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Fishing Lake Crook Mid Lake
Water Quality Trend: ↑ Improving
Based on 5 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +0.016 m/yr | 5 |
| Phosphorus | ↑ Improving | -1.93 µg/L/yr | 5 |
| Chlorophyll-a | ↓ Declining | +10.12 µg/L/yr | 5 |
EPA Impairment Status
Lake Crook Mid Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).
Causes of impairment
Source: EPA ATTAINS assessment unit TX-0208_01 · Official waterbody report · Matched by proximity (0.24 km)
County Ranking
Ranked #3 of 3 lakes in Lamar County
Nearby Lakes in Lamar County
Frequently asked questions about Lake Crook Mid Lake
Where is Lake Crook Mid Lake?
- Lake Crook Mid Lake is a lake in Lamar County, Texas. LakeQuality grades it F for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for Lake Crook Mid Lake?
- Lake Crook Mid Lake in Lamar County, Texas has a water quality grade of F (Algae-prone). Water clarity: 1.6 ft visibility. Phosphorus: 85 µg/L. Chlorophyll-a (algae): 50 µg/L.
Is Lake Crook Mid Lake safe to swim in?
- The F is nutrients and algae, not a swimming clearance. Lake Crook Mid Lake is listed impaired under Clean Water Act §303(d) (IR 5) for algal growth. Check local advisories before you swim.
How deep is Lake Crook Mid Lake?
- No published bathymetric survey covers Lake Crook Mid Lake, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 24 feet, but that is a modelled estimate derived from surrounding terrain rather than a measurement on the water, so treat it as approximate.
Are there boat ramps on Lake Crook Mid Lake?
- Lake Crook Mid Lake has 2 documented boat landings in the USGS National Boat Ramps inventory. Named access points include West Lake Crook, East Lake Crook. Public access is listed as yes.
Explore Lake Crook Mid Lake across LakeQuality
More Texas Lake Rankings
Other Grade F Lakes in Texas
Hypereutrophic Lakes in Texas
Where this data comes from
59 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
TCEQMAIN59 samples · 2020–2025
Monitoring station identifiers (1)
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated and data sources.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database
Lake size & watershed from HydroLAKES (HydroSHEDS)
Named boat-access points from the USGS National Boat Ramps inventory