Somerville Lake Big Creek Arm
Burleson County, TexasView mapDirections
TCEQ publishes the water-quality measurements for Somerville Lake Big Creek Arm. Here is what has been measured.
- Hypereutrophic
- Public access
- Limited data
Somerville Lake Big Creek Arm in Burleson County, Texas has water-quality measurements published by TCEQ, shown here as reported. Water clarity: 1.8 ft visibility. Phosphorus: 85 µg/L. Chlorophyll-a (algae): 67.7 µg/L.
Somerville Lake Big Creek Arm is a highly nutrient-loaded hypereutrophic lake in Burleson County, Texas. 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 1 other monitored lakes in Burleson County, Somerville Lake Big Creek Arm ranks #1 for water quality.
Source: EPA Water Quality Portal sampling records, TCEQ, last sampled 2025-11-18. Methodology: how these readings are compared.
Somerville Lake Big Creek Arm has 2 public boat landings, so a lakefront rental is not the only way to get a boat on the water. For a place on the water, look through cabin and lake-house rentals near Somerville Lake Big Creek Arm on Vrbo. For a hotel or motel room, Booking.com and Expedia both search around the lake.
What Somerville Lake Big Creek Arm is good for
From access and monitoring records, not editorial picks.
- Boat launch2 documented ramps
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 Somerville Lake Big Creek Arm 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 Somerville Lake Big Creek Arm
These are the measurements TCEQ publishes for Somerville Lake Big Creek Arm, 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 1.8 ft of visibility. Phosphorus 85 µg/L. Chlorophyll-a 67.7 µg/L. TSI 70.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 1.8ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 85µg/L | Poor GoodFairPoor |
| Chlorophyll-a (algae) | 67.7µg/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. | 70 | Hypereutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Very high nutrients, dense algae, poor clarity
Ask about Somerville Lake Big Creek Arm
Answers come straight from the public measurements and survey records on this page.
→ Somerville Lake Big Creek Arm water level: the live USGS gauge reading
Recreation & Access
- Birch Creek Recreation WaterPublic
- Welch ParkSemi-private
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Stays via Stay22
Stays near Somerville Lake Big Creek Arm
Compare lakeside cabins, hotels, and vacation rentals near Somerville Lake Big Creek Arm in Burleson 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 Somerville Lake Big Creek Arm are listed below.
Top-rated places to stay near Somerville Lake Big Creek Arm
Prices for Oct 30–Nov 1, 4 adults. Change dates on the map below.
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Fishing Somerville Lake Big Creek Arm
Water Quality Trend: Improving
Based on 5 years of monitoring (2021–2025).
Water clarity
Worsening5 years
Phosphorus
Improving-4 µg/L/yr4 years
Chlorophyll-a
Improving-10.63 µg/L/yr4 years
Nearby Lakes in Burleson County
Frequently asked questions about Somerville Lake Big Creek Arm
Where is Somerville Lake Big Creek Arm?
- Somerville Lake Big Creek Arm is a lake in Burleson County, Texas. Its water-quality measurements are published by TCEQ and shown on this page as reported.
What is the water quality of Somerville Lake Big Creek Arm?
- Somerville Lake Big Creek Arm in Burleson County, Texas has water-quality measurements published by TCEQ, shown here as reported. Water clarity: 1.8 ft visibility. Phosphorus: 85 µg/L. Chlorophyll-a (algae): 67.7 µg/L.
Is Somerville Lake Big Creek Arm safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Are there boat ramps on Somerville Lake Big Creek Arm?
- Somerville Lake Big Creek Arm has 2 documented boat landings in the USGS National Boat Ramps inventory. Named access points include Birch Creek Recreation Water, Welch Park. Public access is listed as yes.
Can I fish at Somerville Lake Big Creek Arm?
- Somerville Lake Big Creek Arm has 2 documented boat landings 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
53 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
TCEQMAIN53 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
Named boat-access points from the USGS National Boat Ramps inventory