Lake Somerville Mid Lake
Burleson County, TexasView mapDirections
Nutrients and algae run well above the regional average.
- Hypereutrophic
- Impaired · pH / acidity
- #2 of 2 in the county
- Public access
- Limited data
Lake Somerville Mid Lake in Burleson County, Texas has a water quality grade of F (Algae-prone). Water clarity: 1.8 ft visibility. Phosphorus: 110 µg/L. Chlorophyll-a (algae): 68.7 µg/L.
- Clarity
- 1.8 ft
- Type
- Hypereutrophic
- Phosphorus
- 110 µg/L
- Chlorophyll-a
- 68.7 µg/L
- Trend
- → Stable
- Public access
- Yes
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Stays near Lake Somerville Mid Lake
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Lake Somerville Mid Lake is a highly nutrient-loaded hypereutrophic lake in Burleson County, Texas. Water quality is graded F based on 2 sampling years through 2025. Water clarity is declining over recent sampling years. Limited fish-species data available. Public access is available with 4 public boat landings. Compared to the 1 other monitored lakes in Burleson County, Lake Somerville Mid Lake ranks #2 for water quality.
Source: EPA Water Quality Portal sampling records, TCEQ, last sampled 2025-11-18. Grade methodology: LakeQuality methodology.
What Lake Somerville Mid Lake is good for
From access and monitoring records, not editorial picks.
- Boat launch4 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 Somerville Mid Lake is listed impaired under Clean Water Act §303(d) (IR 5) for pH / acidity. Check local advisories before you swim.
Water Quality Grade: F (Algae-prone)
Very murky, less than 1.8 ft of visibility. Phosphorus 110 µg/L. Chlorophyll-a 68.7 µg/L. TSI 71. The letter is not a swimming clearance.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 1.8 ft | Not graded |
| Phosphorus | 110 µg/L | Poor |
| Chlorophyll-a (Algae) | 68.7 µg/L | Poor |
| Trophic State Index (TSI) | 71 | Hypereutrophic |
Very high nutrients, dense algae, poor clarity
Recreation & Access
- Rocky Creek ParkPublic
- Rocky Creek ParkPublic
- Yegua Creek ParkPublic
- Big Creek ParkSemi-private
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Fishing Lake Somerville Mid Lake
Water Quality Trend: → Stable
Based on 5 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↓ Declining | -0.027 m/yr | 5 |
| Phosphorus | → Stable | -1 µg/L/yr | 5 |
| Chlorophyll-a | ↑ Improving | -6.63 µg/L/yr | 5 |
EPA Impairment Status
Lake Somerville 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-1212_01 · Official waterbody report · Matched by proximity (2.71 km)
County Ranking
Ranked #2 of 2 lakes in Burleson County
Nearby Lakes in Burleson County
Frequently asked questions about Lake Somerville Mid Lake
Where is Lake Somerville Mid Lake?
- Lake Somerville Mid Lake is a lake in Burleson 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 Somerville Mid Lake?
- Lake Somerville Mid Lake in Burleson County, Texas has a water quality grade of F (Algae-prone). Water clarity: 1.8 ft visibility. Phosphorus: 110 µg/L. Chlorophyll-a (algae): 68.7 µg/L.
Is Lake Somerville Mid Lake safe to swim in?
- The F is nutrients and algae, not a swimming clearance. Lake Somerville Mid Lake is listed impaired under Clean Water Act §303(d) (IR 5) for pH / acidity. Check local advisories before you swim.
Are there boat ramps on Lake Somerville Mid Lake?
- Lake Somerville Mid Lake has 4 documented boat landings in the USGS National Boat Ramps inventory. Named access points include Rocky Creek Park, Rocky Creek Park, Yegua Creek Park, Big Creek Park. Public access is listed as yes.
Explore Lake Somerville Mid Lake across LakeQuality
More Texas Lake Rankings
Other Grade F Lakes in Texas
Hypereutrophic Lakes in Texas
Where this data comes from
55 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
TCEQMAIN55 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
Named boat-access points from the USGS National Boat Ramps inventory