Lake Fayetteville
Washington County, Arkansas230 acresView mapDirections
Not Rated: one monitoring station are on record, but they measured water clarity only. LakeQuality’s A–F method grades total phosphorus, total nitrogen, chlorophyll-a, and turbidity; clarity is shown, not scored.
- Impaired · pH / acidity
- Limited data
Lake Fayetteville in Washington County, Arkansas is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 2.6 ft visibility. Surface area: 230 acres.
- Clarity
- 2.6 ft
- Area
- 230 acres
- Trend
- → Stable
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Stays near Lake Fayetteville
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Watch Lake Fayetteville’s letter
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Why Lake Fayetteville has no grade
Lake Fayetteville has monitoring on record from one station, but only water clarity was measured. LakeQuality’s A–F letter uses total phosphorus, total nitrogen, chlorophyll-a, and turbidity against EPA National Lakes Assessment condition classes. With none of those grading measurements on record, Lake Fayetteville is Not Rated — not an F. Its 2.6-foot median from 1 readings collected 2020 is still shown as clarity, but clarity alone cannot earn a letter.
Not Rated is EPA Integrated Reporting Category 3 — insufficient information. 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 Fayetteville is a 230-acre lake in Washington County, Arkansas. Phosphorus level is improving over recent sampling years.
Source: EPA Water Quality Portal sampling records, ADEQ, last sampled 2020-07-21. Grade methodology: LakeQuality methodology.
Swimming Safety
Not ratedLimited data
The letter is not a swimming clearance. Lake Fayetteville is listed impaired under Clean Water Act §303(d) (IR 5) for pH / acidity. Check local advisories before you swim.
Water quality measurements for Lake Fayetteville
These readings exist but are not enough for an A–F grade — see why.
Very murky, less than 2.6 ft of visibility. TSI 63.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.6 ft | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 63 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 230 acres |
No bathymetric survey has been published for Lake Fayetteville, so its depth is not documented here.
Fishing Lake Fayetteville
Water Quality Trend: → Stable
Based on 7 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Phosphorus | ↑ Improving | -1.43 µg/L/yr | 7 |
| Chlorophyll-a | ↓ Declining | +1.71 µg/L/yr | 7 |
Reservoir Info (USACE NID)
Lake Fayetteville is a man-made reservoir impounded by the Lake Fayetteville (completed 1949), built primarily for recreation on the Clear Creek; earth-type dam, 49 ft tall and 1,733 ft long.
- Surface area
- 230 ac
- Normal storage
- 3,535 ac-ft
- Max storage
- 6,566 ac-ft
- Drainage area
- 9.1 sq mi
- Hazard class
- High
- Owner
- City of Fayetteville
Source: USACE National Inventory of Dams, NID ID AR00289 · Operator website
EPA Impairment Status
Lake Fayetteville is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 5).
Causes of impairment
Source: EPA ATTAINS assessment unit AR_11110103_4080 · Official waterbody report
Graded lakes near Lake Fayetteville
Lake Fayetteville has no grade, but these lakes within a short drive do.
Nearby Lakes in Washington County
Frequently asked questions about Lake Fayetteville
Where is Lake Fayetteville?
- Lake Fayetteville 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 Fayetteville?
- Lake Fayetteville in Washington County, Arkansas is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 2.6 ft visibility. Surface area: 230 acres.
Is Lake Fayetteville safe to swim in?
- The letter is not a swimming clearance. Lake Fayetteville is listed impaired under Clean Water Act §303(d) (IR 5) for pH / acidity. Check local advisories before you swim.
Explore Lake Fayetteville across LakeQuality
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Where this data comes from
1 measurement from 1 monitoring station, 2020. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- North American Lake Management Society
NALMS1 sample · 2020
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