Lake Eddleman
Young County, Texas650 acresView mapDirections
Not enough samples to grade — no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years). No letter yet. Here is what we do have.
- 41 ft max depth
- Public access
- Limited data
Lake Eddleman in Young County, Texas is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 1.2 ft visibility. Phosphorus: 60 µg/L. Chlorophyll-a (algae): 9 µg/L. Surface area: 650 acres.
- Clarity
- 1.2 ft
- Max depth
- ~41 ft est.
- Area
- 650 acres
- Phosphorus
- 60 µg/L
- Chlorophyll-a
- 9 µg/L
- Trend
- ↓ Declining
- Public access
- Yes
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Watch Lake Eddleman’s letter
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Why Lake Eddleman has no grade
We grade a lake only when the monitoring record supports a letter: at least three phosphorus or chlorophyll-a samples in the last ten years, scored against EPA National Lakes Assessment thresholds for this lake’s ecoregion. For Lake Eddleman, no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years). Sampling here has recorded water clarity, phosphorus and algae (chlorophyll-a).
Not Rated is not an F. It is EPA Integrated Reporting Category 3 — insufficient information. The water here may be excellent or poor; nobody has measured enough of it to say. Everything below that has been measured is still reported on this page.
Sampling is run by TCEQ and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Lake Eddleman is a 650-acre lake in Young County, Texas with an estimated average depth of about 41 feet. Overall water quality is declining over recent sampling years. Limited fish-species data available. Public access is available with 1 public boat landing.
Source: EPA Water Quality Portal sampling records, TCEQ, last sampled 2025-08-13. Grade methodology: LakeQuality methodology.
What Lake Eddleman is good for
From access and monitoring records, not editorial picks.
- Boat launch1 documented ramp
Swimming Safety
Not ratedLimited data
The letter is not a swimming clearance. Check local advisories before you swim.
Water quality measurements for Lake Eddleman
These readings exist but are not enough for an A–F grade — see why.
Very murky, less than 1.2 ft of visibility. Phosphorus 60 µg/L. Chlorophyll-a 9 µg/L. TSI 63.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 1.2 ft | Not graded |
| Phosphorus | 60 µg/L | Not graded |
| Chlorophyll-a (Algae) | 9 µg/L | Not graded |
| Trophic State Index (TSI) | 63 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | ~41 ft est. |
| Surface Area | 650 acres |
| 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 Eddleman.
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
- Lake EddlemanPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Fishing Lake Eddleman
Water Quality Trend: ↓ Declining
Based on 6 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↓ Declining | -0.109 m/yr | 6 |
| Phosphorus | ↓ Declining | +5 µg/L/yr | 3 |
| Chlorophyll-a | ↑ Improving | -0.98 µg/L/yr | 5 |
Reservoir Info (USACE NID)
Lake Eddleman is a man-made reservoir impounded by the Eddleman Dam (completed 1929), built primarily for water supply on the Flint Creek; earth-type dam, 57 ft tall and 4,495 ft long.
- Surface area
- 650 ac
- Normal storage
- 13,386 ac-ft
- Max storage
- 35,000 ac-ft
- Drainage area
- 42 sq mi
- Hazard class
- High
- Owner
- CITY OF GRAHAM
All listed purposes: Water Supply;Other.
Source: USACE National Inventory of Dams, NID ID TX03946 · Operator website
Graded lakes near Lake Eddleman
Lake Eddleman has no grade, but these lakes within a short drive do.
Nearby Lakes in Young County
Frequently asked questions about Lake Eddleman
Where is Lake Eddleman?
- Lake Eddleman is a lake in Young County, Texas. LakeQuality has not rated this lake (UNRATED) — no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years).
What is the water quality grade for Lake Eddleman?
- Lake Eddleman in Young County, Texas is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 1.2 ft visibility. Phosphorus: 60 µg/L. Chlorophyll-a (algae): 9 µg/L. Surface area: 650 acres.
Is Lake Eddleman safe to swim in?
- The letter is not a swimming clearance. Check local advisories before you swim.
How deep is Lake Eddleman?
- No published bathymetric survey covers Lake Eddleman, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 41 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 650 acres.
Are there boat ramps on Lake Eddleman?
- Lake Eddleman has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Lake Eddleman. Public access is listed as yes.
Explore Lake Eddleman across LakeQuality
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Where this data comes from
9 measurements from 1 monitoring station, 2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Texas Commission on Environmental Quality
TCEQMAIN9 samples · 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
Lake size & watershed from HydroLAKES (HydroSHEDS)
Named boat-access points from the USGS National Boat Ramps inventory