Fairfield Lake
Freestone County, Texas2,350 acresView mapDirections
TCEQ publishes the water-quality measurements for Fairfield Lake. Here is what has been measured.
- Eutrophic
- 62 ft max depth
- Public access
- Limited data
Fairfield Lake in Freestone County, Texas has water-quality measurements published by TCEQ, shown here as reported. Water clarity: 3.2 ft visibility. Phosphorus: 40 µg/L. Chlorophyll-a (algae): 24.9 µg/L. Surface area: 2350 acres.
Fairfield Lake is a 2,350-acre productive, nutrient-rich eutrophic lake in Freestone County, Texas with an estimated average depth of about 62 feet. Overall water quality is improving over recent sampling years. Limited fish-species data available. Public access is available with 2 public boat landings.
Source: EPA Water Quality Portal sampling records, TCEQ, last sampled 2023-04-19. Methodology: how these readings are compared.
Fairfield Lake covers about 2,400 acres in Freestone County. It has 2 public boat landings, so a lakefront rental is not the only way to get a boat on the water. If you are planning to stay, you can search lake houses and cabins around Fairfield Lake on Vrbo, or look for a hotel room near the lake on Booking.com or Expedia.
What Fairfield Lake is good for
From access and monitoring records, not editorial picks.
- Boat launch2 documented ramps
- Big water2,350 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 Fairfield 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 Fairfield Lake
These are the measurements TCEQ publishes for Fairfield 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 3.2 ft of visibility. Phosphorus 40 µg/L. Chlorophyll-a 24.9 µg/L. TSI 60.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 3.2ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 40µg/L | Good GoodFairPoor |
| Chlorophyll-a (algae) | 24.9µg/L | Measured, not scored The green pigment in algae — a direct measure of how much algae is in the water. |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 60 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about Fairfield Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
~62 ft est.
Surface area
2,350 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 Fairfield Lake.
Lake Size & Watershed
Watershed (drainage) area
36 sq mi
HydroLAKES / HydroSHEDS
Shoreline
17.2 mi
HydroLAKES / HydroSHEDS
Elevation
318 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
- Fairfield Lake State Park BPublic
- Fairfield Lake State Park APublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Stays via Stay22
Stays near Fairfield Lake
Compare lakeside cabins, hotels, and vacation rentals near Fairfield Lake in Freestone 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.
Top-rated places to stay near Fairfield Lake
Prices for Oct 30–Nov 1, 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 Fairfield Lake → · more Texas lake trips
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Fishing Fairfield Lake
Water quality readings over time
2 seasons of samples on record (2021–2022). Calling a direction takes at least 4 years of the same measurement.
Water clarity
Improving2 years
Phosphorus
Improving-5 µg/L/yr2 years
Reservoir Info (USACE NID)
Fairfield Lake is a man-made reservoir impounded by the Fairfield Lake Dam (completed 1969), built primarily for other on the Big Brown Creek; earth-type dam, 77 ft tall and 4,350 ft long.
- Surface area
- 2,350 ac
- Normal storage
- 44,169 ac-ft
- Max storage
- 70,840 ac-ft
- Drainage area
- 34 sq mi
- Hazard class
- Low
- Owner
- LUMINANT POWER COMPANY LLC
Source: USACE National Inventory of Dams, NID ID TX00692 · Operator website
Nearby Lakes in Freestone County
Frequently asked questions about Fairfield Lake
Where is Fairfield Lake?
- Fairfield Lake is a lake in Freestone County, Texas. Its water-quality measurements are published by TCEQ and shown on this page as reported.
What is the water quality of Fairfield Lake?
- Fairfield Lake in Freestone County, Texas has water-quality measurements published by TCEQ, shown here as reported. Water clarity: 3.2 ft visibility. Phosphorus: 40 µg/L. Chlorophyll-a (algae): 24.9 µg/L. Surface area: 2350 acres.
Is Fairfield Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Fairfield Lake?
- No published bathymetric survey covers Fairfield Lake, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 62 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 2350 acres.
Are there boat ramps on Fairfield Lake?
- Fairfield Lake has 2 documented boat landings in the USGS National Boat Ramps inventory. Named access points include Fairfield Lake State Park B, Fairfield Lake State Park A. Public access is listed as yes.
Can I fish at Fairfield Lake?
- Fairfield Lake 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.
Explore Fairfield Lake across LakeQuality
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Where this data comes from
21 measurements from 1 monitoring station, 2020–2023. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Texas Commission on Environmental Quality
TCEQMAIN21 samples · 2020–2023
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