Lake Weddington
Washington County, ArkansasView 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.
- 32 ft max depth
- Limited data
Lake Weddington in Washington County, Arkansas is not rated for water quality — its monitoring record does not meet the evidence bar. Phosphorus: 20 µg/L. Chlorophyll-a (algae): 7.4 µg/L.
- Max depth
- ~32 ft est.
- Phosphorus
- 20 µg/L
- Chlorophyll-a
- 7.4 µg/L
- Trend
- → Stable
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Stays near Lake Weddington
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Watch Lake Weddington’s letter
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Why Lake Weddington 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 Weddington, no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years). Sampling here has recorded phosphorus and algae (chlorophyll-a), but not water clarity.
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 ADEQ and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Lake Weddington is a lake in Washington County, Arkansas with an estimated average depth of about 32 feet. Phosphorus level is improving over recent sampling years.
Source: EPA Water Quality Portal sampling records, ADEQ, last sampled 2016-05-24. Grade methodology: LakeQuality methodology.
What Lake Weddington is good for
From access and monitoring records, not editorial picks.
- Camping1 public campground nearby
Swimming Safety
Not ratedLimited data
The letter is not a swimming clearance. Check local advisories before you swim.
Water quality measurements for Lake Weddington
These readings exist but are not enough for an A–F grade — see why.
No clarity data. Phosphorus 20 µg/L. Chlorophyll-a 7.4 µg/L. TSI 49.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | 20 µg/L | Not graded |
| Chlorophyll-a (Algae) | 7.4 µg/L | Not graded |
| Trophic State Index (TSI) | 49 | Mesotrophic |
Moderate nutrients, good water quality
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | ~32 ft est. |
| Average Depth | ~14 ft est. |
Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. Arkansas has not published bathymetry for Lake Weddington.
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
Public campgrounds near Lake Weddington
- Lake Wedington Recreation Area0.7 km
Nearest public campgrounds in the USGS National Map inventory, within about 3 miles. An empty list means USGS records no campground that close, which is not the same as camping being unavailable. Where the source gives an official reservation link, it is used; the cabin and hotel search does not cover campsites. More camping lakes
Fishing Lake Weddington
Water Quality Trend: → Stable
Based on 4 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Phosphorus | ↑ Improving | -2.55 µg/L/yr | 4 |
| Chlorophyll-a | ↓ Declining | +0.56 µg/L/yr | 4 |
Graded lakes near Lake Weddington
Lake Weddington has no grade, but these lakes within a short drive do.
Nearby Lakes in Washington County
Frequently asked questions about Lake Weddington
Where is Lake Weddington?
- Lake Weddington is a lake in Washington County, Arkansas. 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 Weddington?
- Lake Weddington in Washington County, Arkansas is not rated for water quality — its monitoring record does not meet the evidence bar. Phosphorus: 20 µg/L. Chlorophyll-a (algae): 7.4 µg/L.
Is Lake Weddington safe to swim in?
- The letter is not a swimming clearance. Check local advisories before you swim.
How deep is Lake Weddington?
- No published bathymetric survey covers Lake Weddington, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 32 feet, but that is a modelled estimate derived from surrounding terrain rather than a measurement on the water, so treat it as approximate.
Are there campgrounds on Lake Weddington?
- Lake Weddington has 1 public campground from USGS The National Map within 5 km, including Lake Wedington Recreation Area. This is a location join, not a booking. Cabins and hotels are listed separately; campsite reservations use the official link when the source provides one.
Explore Lake Weddington across LakeQuality
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Where this data comes from
37 measurements from 1 monitoring station, 2012–2016. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Arkansas Department of Environmental Quality
ARDEQH2O_WQX37 samples · 2012–2016
Analytical methods
- 4500 P J ~ Persulfate Method for Simultaneous Determination of Total Nitrogen and Total Phosphorus
- 445.0 ~ EPA; Chlorophyll and Pheophytin in Algae by Fluorescence
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)
Public campgrounds from USGS The National Map Structures, within about 3 miles