Jim L Chapman Lake
Delta County, TexasView mapDirections
Nutrients and algae run well above the regional average.
↓ down from D at the last regrade
- Hypereutrophic
- #2 of 2 in the county
- Public access
- Limited data
Jim L Chapman Lake in Delta County, Texas has a water quality grade of F (Algae-prone). Water clarity: 1.2 ft visibility. Chlorophyll-a (algae): 31 µg/L.
- Clarity
- 1.2 ft
- Type
- Hypereutrophic
- Chlorophyll-a
- 31 µg/L
- Trend
- ↓ Declining
- Public access
- Yes
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Stays near Jim L Chapman Lake
Compare lakeside cabins, hotels, and vacation rentals near Jim L Chapman Lake in Delta 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 Jim L Chapman Lake are listed below.
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Jim L Chapman Lake is a highly nutrient-loaded hypereutrophic lake in Delta County, Texas. Water quality is graded F based on 1 sampling years through 2020. Overall water quality is declining over recent sampling years. Limited fish-species data available. Public access is available with 2 public boat landings. Compared to the 1 other monitored lakes in Delta County, Jim L Chapman Lake ranks #2 for water quality.
Source: EPA Water Quality Portal sampling records, TCEQ, last sampled 2020-10-19. Grade methodology: LakeQuality methodology.
What Jim L Chapman 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. Check local advisories before you swim.
Water Quality Grade: F (Algae-prone)
Very murky, less than 1.2 ft of visibility. Chlorophyll-a 31 µg/L. TSI 69. The letter is not a swimming clearance.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 1.2 ft | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | 31 µg/L | Poor |
| Trophic State Index (TSI) | 69 | Hypereutrophic |
Very high nutrients, dense algae, poor clarity
Recreation & Access
- Cooper Lake State Park - Honey CreekPublic
- Cooper Lake State Park - John's CreekPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Fishing Jim L Chapman Lake
Water Quality Trend: ↓ Declining
Based on 6 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +0.024 m/yr | 6 |
| Phosphorus | ↓ Declining | +3.51 µg/L/yr | 5 |
| Chlorophyll-a | ↓ Declining | +2.31 µg/L/yr | 5 |
County Ranking
Ranked #2 of 2 lakes in Delta County
Nearby Lakes in Delta County
Frequently asked questions about Jim L Chapman Lake
Where is Jim L Chapman Lake?
- Jim L Chapman Lake is a lake in Delta County, Texas. LakeQuality grades it F for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for Jim L Chapman Lake?
- Jim L Chapman Lake in Delta County, Texas has a water quality grade of F (Algae-prone). Water clarity: 1.2 ft visibility. Chlorophyll-a (algae): 31 µg/L.
Is Jim L Chapman Lake safe to swim in?
- The F is nutrients and algae, not a swimming clearance. Check local advisories before you swim.
Are there boat ramps on Jim L Chapman Lake?
- Jim L Chapman Lake has 2 documented boat landings in the USGS National Boat Ramps inventory. Named access points include Cooper Lake State Park - Honey Creek, Cooper Lake State Park - John's Creek. Public access is listed as yes.
Explore Jim L Chapman Lake across LakeQuality
More Texas Lake Rankings
Other Grade F Lakes in Texas
Hypereutrophic Lakes in Texas
Where this data comes from
12 measurements from 2 monitoring stations, 2020. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- USGS Texas Water Science Center
USGS-TX12 samples · 2020
Monitoring station identifiers (2)
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
Named boat-access points from the USGS National Boat Ramps inventory