Viva Naughton Reservoir Lpd
Lincoln County, Wyoming1,460 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.
- 112 ft max depth
- Public access
- Limited data
Viva Naughton Reservoir Lpd in Lincoln County, Wyoming is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 12.3 ft visibility. Phosphorus: 17.3 µg/L. Surface area: 1460 acres.
- Clarity
- 12.3 ft
- Max depth
- ~112 ft est.
- Area
- 1,460 acres
- Phosphorus
- 17.3 µg/L
- Trend
- → Stable
- Public access
- Yes
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Watch Viva Naughton Reservoir Lpd’s letter
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Why Viva Naughton Reservoir Lpd 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 Viva Naughton Reservoir Lpd, no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years). Sampling here has recorded water clarity and phosphorus, but not 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 Wyoming DEQ and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Viva Naughton Reservoir Lpd is a 1,460-acre lake in Lincoln County, Wyoming with an estimated average depth of about 112 feet. Water clarity is declining over recent sampling years. Limited fish-species data available. Public access is available.
Source: EPA Water Quality Portal sampling records, Wyoming DEQ, last sampled 2014-09-16. Grade methodology: LakeQuality methodology.
What Viva Naughton Reservoir Lpd is good for
From access and monitoring records, not editorial picks.
- Clear water12.3 ft of visibility
- Big water1,460 acres
Swimming Safety
Not ratedLimited data
The letter is not a swimming clearance. Check local advisories before you swim.
Water quality measurements for Viva Naughton Reservoir Lpd
These readings exist but are not enough for an A–F grade — see why.
Good clarity, visible to about 12.3 ft. Phosphorus 17.3 µg/L. TSI 43.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 12.3 ft | Not graded |
| Phosphorus | 17.3 µg/L | Not graded |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 43 | Mesotrophic |
Moderate nutrients, good water quality
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | ~112 ft est. |
| Average Depth | ~67 ft est. |
| Surface Area | 1,460 acres |
| Public Access | Yes |
Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. Wyoming has not published bathymetry for Viva Naughton Reservoir Lpd.
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.
Fishing Viva Naughton Reservoir Lpd
Water Quality Trend: → Stable
Based on 2 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↓ Declining | -0.22 m/yr | 2 |
| Phosphorus | ↑ Improving | -2.3 µg/L/yr | 2 |
Reservoir Info (USACE NID)
Viva Naughton Reservoir Lpd is a man-made reservoir impounded by the Viva Naughton (completed 1967), built primarily for water supply on the Ham's Fork; earth-type dam, 90 ft tall and 3,200 ft long.
- Surface area
- 1,460 ac
- Normal storage
- 42,200 ac-ft
- Drainage area
- 235 sq mi
- Hazard class
- High
- Owner
- PacifiCorp
All listed purposes: Water Supply;Irrigation;Recreation;Hydroelectric;Flood Risk Reduction.
Source: USACE National Inventory of Dams, NID ID WY01281 · Operator website · Matched by proximity (0.21 km)
Nearby Lakes in Lincoln County
Frequently asked questions about Viva Naughton Reservoir Lpd
Where is Viva Naughton Reservoir Lpd?
- Viva Naughton Reservoir Lpd is a lake in Lincoln County, Wyoming. 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 Viva Naughton Reservoir Lpd?
- Viva Naughton Reservoir Lpd in Lincoln County, Wyoming is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 12.3 ft visibility. Phosphorus: 17.3 µg/L. Surface area: 1460 acres.
Is Viva Naughton Reservoir Lpd safe to swim in?
- The letter is not a swimming clearance. Check local advisories before you swim.
How deep is Viva Naughton Reservoir Lpd?
- No published bathymetric survey covers Viva Naughton Reservoir Lpd, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 112 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 1460 acres.
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Where this data comes from
7 measurements from 1 monitoring station, 2013–2014. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- State of Wyoming Department of Environmental Quality Watershed Program
WYDEQ_WATERSHED7 samples · 2013–2014
Analytical methods
- Secchi
- Total Phosphorus After Block Digestion
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)