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LakeQuality

Luce Reservoir

Park County, Wyoming62 acresView mapDirections

Wyoming DEQ publishes the water-quality measurements for Luce Reservoir. Here is what has been measured.

Phosphorus
10 µg/L
Measured by Wyoming DEQ
Max depth
~12 ft est.
GLOBathy model
Area
62 acres
Surface area
Trend
Improving
3 years of samples
  • 12 ft max depth
  • Limited data

Ask about Luce Reservoir

Answers come straight from the public measurements and survey records on this page.

Luce Reservoir in Park County, Wyoming has water-quality measurements published by Wyoming DEQ, shown here as reported. Phosphorus: 10 µg/L. Surface area: 62 acres.

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Luce Reservoir is a 62-acre lake in Park County, Wyoming with an estimated average depth of about 12 feet. Overall water quality is improving over recent sampling years.

Source: EPA Water Quality Portal sampling records, Wyoming DEQ, last sampled 2015-09-21. Grade methodology: LakeQuality methodology.

Swimming conditions

No reading

Limited data

Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.

Whether Luce Reservoir is safe to swim in today is a call for the Wyoming Department of Environmental Quality and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.

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Water quality measurements for Luce Reservoir

These are the measurements Wyoming DEQ publishes for Luce Reservoir, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.

No clarity data. Phosphorus 10 µg/L. TSI 37.

MetricValueEPA condition class
Water Clarity (Secchi Depth)No recent samples
Phosphorus10 µg/LMeasured, not scored
Chlorophyll-a (Algae)No recent samples
Trophic State Index (TSI)37Oligotrophic

Low nutrients, clear water. No reading is a swimming clearance.

Lake Details

CharacteristicValue
Maximum Depth~12 ft est.
Surface Area62 acres

Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. Wyoming has not published bathymetry for Luce Reservoir.

Lake Size & Watershed

Watershed (drainage) area
21 sq mi
Shoreline
1.1 mi
Elevation
4,806 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.

Fishing Luce Reservoir

Based on 3 years of monitoring data (2020-2025).

MetricTrendChange/YearYears
Water Clarity Improving+0.27 m/yr2
Phosphorus Improving-2.74 µg/L/yr3
Chlorophyll-a Declining+0.18 µg/L/yr2

Reservoir Info (USACE NID)

Luce Reservoir is a man-made reservoir impounded by the Luce (completed 1912), built primarily for irrigation on the Paint Creek; earth-type dam, 19 ft tall and 555 ft long.

Surface area
62 ac
Normal storage
1,056 ac-ft
Max storage
1,468 ac-ft
Hazard class
Low
Owner
FS RANCH CORPORATION

Source: USACE National Inventory of Dams, NID ID WY01181 · Operator website

Nearby Lakes in Park County

Frequently asked questions about Luce Reservoir

Where is Luce Reservoir?

Luce Reservoir is a lake in Park County, Wyoming. Its water-quality measurements are published by Wyoming DEQ and shown on this page as reported.

What is the water quality of Luce Reservoir?

Luce Reservoir in Park County, Wyoming has water-quality measurements published by Wyoming DEQ, shown here as reported. Phosphorus: 10 µg/L. Surface area: 62 acres.

Is Luce Reservoir safe to swim in?

Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.

How deep is Luce Reservoir?

No published bathymetric survey covers Luce Reservoir, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 12 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 62 acres.

Where this data comes from

3 measurements from 1 monitoring station, 2015. Retrieved from the EPA Water Quality Portal on 2026-08-02.

Collected and reported by

  • State of Wyoming Department of Environmental Quality Watershed ProgramWYDEQ_WATERSHED3 samples · 2015

Analytical methods

  • Total Phosphorus After Block Digestion
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)