Red Creek Reservoir
Duchesne County, UtahView mapDirections
Utah DWQ publishes the water-quality measurements for Red Creek Reservoir. Here is what has been measured.
- Mesotrophic
- Limited data
Red Creek Reservoir in Duchesne County, Utah has water-quality measurements published by Utah DWQ, shown here as reported. Water clarity: 14.4 ft visibility. Phosphorus: 26.5 µg/L. Chlorophyll-a (algae): 2.9 µg/L.
Red Creek Reservoir is a mesotrophic lake in Duchesne County, Utah. Overall water quality is declining over recent sampling years. Compared to the 8 other monitored lakes in Duchesne County, Red Creek Reservoir ranks #4 for water quality.
Source: EPA Water Quality Portal sampling records, Utah DWQ, last sampled 2023-09-07. Methodology: how these readings are compared.
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What Red Creek Reservoir is good for
From access and monitoring records, not editorial picks.
- Clear water14.4 ft of visibility
Swimming conditions
Readings onlyLimited data
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. Check local advisories before you swim.
Whether Red Creek 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 Creek Reservoir
These are the measurements Utah DWQ publishes for Red Creek Reservoir, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Good clarity, visible to about 14.4 ft. Phosphorus 26.5 µg/L. Chlorophyll-a 2.9 µg/L. TSI 44.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 14.4ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 26.5µg/L | Good GoodFairPoor |
| Chlorophyll-a (algae) | 2.9µg/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. | 44 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
Ask about Red Creek Reservoir
Answers come straight from the public measurements and survey records on this page.
Lake Size & Watershed
Watershed (drainage) area
39 sq mi
HydroLAKES / HydroSHEDS
Surface area
101 acres
HydroLAKES / HydroSHEDS
Shoreline
1.8 mi
HydroLAKES / HydroSHEDS
Elevation
7,221 ft
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).
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Stays near Red Creek Reservoir
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Fishing Red Creek Reservoir
Water quality readings over time
2 seasons of samples on record (2017–2023). Calling a direction takes at least 4 years of the same measurement.
Water clarity
Worsening2 years
Reservoir Info (USACE NID)
Red Creek Reservoir is a man-made reservoir impounded by the Red Creek (Duchesne) (completed 1960), built primarily for irrigation on the Red Creek; earth-type dam, 107 ft tall and 1,750 ft long.
- Normal storage
- 5,720 ac-ft
- Max storage
- 6,565 ac-ft
- Drainage area
- 22 sq mi
- Hazard class
- High
- Owner
- RED CREEK IRRIGATION COMPANY
Source: USACE National Inventory of Dams, NID ID UT00254 · Operator website · Matched by proximity (0.24 km)
Nearby Lakes in Duchesne County
Frequently asked questions about Red Creek Reservoir
Where is Red Creek Reservoir?
- Red Creek Reservoir is a lake in Duchesne 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 Creek Reservoir?
- Red Creek Reservoir in Duchesne County, Utah has water-quality measurements published by Utah DWQ, shown here as reported. Water clarity: 14.4 ft visibility. Phosphorus: 26.5 µg/L. Chlorophyll-a (algae): 2.9 µg/L.
Is Red Creek Reservoir safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Red Creek Reservoir?
- The available depth estimate for Red Creek Reservoir is shallower than its measured water clarity, which cannot be right, so no depth is shown.
Explore Red Creek Reservoir across LakeQuality
More lakes in Utah
Other Lakes in Utah
Mesotrophic Lakes in Utah
Where this data comes from
29 measurements from 1 monitoring station, 2017–2023. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Utah Department Of Environmental Quality
UTAHDWQ_WQX29 samples · 2017–2023
Analytical methods
- Field Measurements
- Phosphorus by Colorimetry
- 10200 H ~ Chlorophyll a-b-c Determination
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)