Red Fleet Reservoir
Uintah County, Utah521 acresView mapDirections
Utah DWQ publishes the water-quality measurements for Red Fleet Reservoir. Here is what has been measured.
- Oligotrophic
- Impaired · Oxygen depletion (low DO)
- Public access
Red Fleet Reservoir in Uintah County, Utah has water-quality measurements published by Utah DWQ, shown here as reported. Water clarity: 5.9 ft visibility. Phosphorus: 20 µg/L. Chlorophyll-a (algae): 1.8 µg/L. Surface area: 521 acres.
Red Fleet Reservoir is a 521-acre cold, clear oligotrophic lake in Uintah County, Utah. Overall water quality is declining over recent sampling years. Limited fish-species data available. Public access is available. Compared to the 13 other monitored lakes in Uintah County, Red Fleet Reservoir ranks #3 for water quality.
Source: EPA Water Quality Portal sampling records, Utah DWQ, last sampled 2025-09-04. Methodology: how these readings are compared.
Swimming conditions
Readings onlyLow algae
Based on clarity and algae readings from past sampling — there is no live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
Nutrient and algae readings are not a swimming clearance. Red Fleet Reservoir is listed impaired under Clean Water Act §303(d) (IR 5) for oxygen depletion (low DO), temperature. Check local advisories before you swim.
Whether Red Fleet Reservoir is safe to swim in today is a call for the Utah Division of Water Quality and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Red Fleet Reservoir
These are the measurements Utah DWQ publishes for Red Fleet Reservoir, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Murky, only visible to about 5.9 ft. Phosphorus 20 µg/L. Chlorophyll-a 1.8 µg/L. TSI 45.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 5.9ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 20µg/L | Good GoodFairPoor |
| Chlorophyll-a (algae) | 1.8µg/L | Good GoodFairPoor |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 45 | Oligotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Low nutrients, clear water. No reading is a swimming clearance.
Ask about Red Fleet Reservoir
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
521 acres
Public access
Yes
Listed by Utah DWQ
No bathymetric survey has been published for Red Fleet Reservoir, so its depth is not documented here.
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Fishing Red Fleet Reservoir
Water Quality Trend: Worsening
Based on 14 years of monitoring (2012–2025).
Water clarity
Stable14 years
Phosphorus
Worsening+0.92 µg/L/yr6 years
Chlorophyll-a
Stable-0.03 µg/L/yr11 years
Reservoir Info (USACE NID)
Red Fleet Reservoir is a man-made reservoir impounded by the Red Fleet Dam (completed 1980), built primarily for fish and wildlife pond on the Big Brush Creek; earth-type dam, 161 ft tall and 1,750 ft long.
- Surface area
- 521 ac
- Normal storage
- 26,000 ac-ft
- Max storage
- 26,000 ac-ft
- Drainage area
- 94.39 sq mi
- Hazard class
- High
- Owner
- BUREAU OF RECLAMATION
All listed purposes: Fish and Wildlife Pond;Irrigation;Recreation;Water Supply.
Source: USACE National Inventory of Dams, NID ID UT82901 · Operator website
EPA Impairment Status
Red Fleet Reservoir is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).
Causes of impairment
Designated uses not supporting: Aquatic life.
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit UT-L-14060010-008_00 · Official waterbody report
Nearby Lakes in Uintah County
Frequently asked questions about Red Fleet Reservoir
Where is Red Fleet Reservoir?
- Red Fleet Reservoir is a lake in Uintah County, Utah. Its water-quality measurements are published by Utah DWQ and shown on this page as reported.
What is the water quality of Red Fleet Reservoir?
- Red Fleet Reservoir in Uintah County, Utah has water-quality measurements published by Utah DWQ, shown here as reported. Water clarity: 5.9 ft visibility. Phosphorus: 20 µg/L. Chlorophyll-a (algae): 1.8 µg/L. Surface area: 521 acres.
Is Red Fleet Reservoir safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Red Fleet Reservoir is listed impaired under Clean Water Act §303(d) (IR 5) for oxygen depletion (low DO), temperature. Check local advisories before you swim.
Can I fish at Red Fleet Reservoir?
- Public access to Red Fleet Reservoir is listed as yes on the lake record. Seasons, size and bag limits, and whether you need a license are set by Utah's fish and wildlife agency, so check its current regulations before you go.
Explore Red Fleet Reservoir across LakeQuality
Planning a trip around Dinosaur?
Red Fleet Reservoir is about 27 miles from Dinosaur National Monument. Crowds there swing hard by season, so the month you pick changes both how busy the park is and what lodging costs.
Best time to visit Dinosaur →More lakes in Utah
Other Lakes in Utah
Oligotrophic Lakes in Utah
Where this data comes from
1,116 measurements from 2 monitoring stations, 2012–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Utah Department Of Environmental Quality
UTAHDWQ_WQX1,116 samples · 2012–2025
Analytical methods
- Field Measurements
- 4500 P E ~ Phosphorus in Water by Colorimetry- Ascorbic Acid Method
- Metals in Water by ICP-AES
- Phosphorus by Colorimetry
- 447.0 ~ EPA; Chlorophyll a and b in phytoplankton by HPLC/UV
- 10200 H ~ Chlorophyll a-b-c Determination
- Turbidiy determined in the field
- Turbidity by Nephelometry
Monitoring station identifiers (2)
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
Impairment status from EPA ATTAINS 303(d) database