Woodruff Creek Reservoir
Rich County, UtahView mapDirections
Utah DWQ publishes the water-quality measurements for Woodruff Creek Reservoir. Here is what has been measured.
- Eutrophic
- 12 ft max depth
- Limited data
Woodruff Creek Reservoir in Rich County, Utah has water-quality measurements published by Utah DWQ, shown here as reported. Water clarity: 11.5 ft visibility. Phosphorus: 41.5 µg/L. Chlorophyll-a (algae): 8.1 µg/L.
Woodruff Creek Reservoir is a productive, nutrient-rich eutrophic lake in Rich County, Utah with an estimated average depth of about 12 feet. Overall water quality is declining over recent sampling years. Compared to the 7 other monitored lakes in Rich County, Woodruff Creek Reservoir ranks #7 for water quality.
Source: EPA Water Quality Portal sampling records, Utah DWQ, last sampled 2021-09-29. Methodology: how these readings are compared.
What Woodruff Creek Reservoir is good for
From access and monitoring records, not editorial picks.
- Clear water11.5 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 Woodruff 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 Woodruff Creek Reservoir
These are the measurements Utah DWQ publishes for Woodruff 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 11.5 ft. Phosphorus 41.5 µg/L. Chlorophyll-a 8.1 µg/L. TSI 50.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 11.5ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 41.5µg/L | Fair GoodFairPoor |
| Chlorophyll-a (algae) | 8.1µg/L | Poor GoodFairPoor |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 50 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about Woodruff Creek Reservoir
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
~12 ft est.
Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. Utah has not published bathymetry for Woodruff Creek Reservoir.
Lake Size & Watershed
Watershed (drainage) area
54 sq mi
HydroLAKES / HydroSHEDS
Surface area
82 acres
HydroLAKES / HydroSHEDS
Shoreline
2.2 mi
HydroLAKES / HydroSHEDS
Elevation
6,870 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.
Stays via Stay22
Stays near Woodruff Creek Reservoir
Compare lakeside cabins, hotels, and vacation rentals near Woodruff Creek Reservoir in Rich County, Utah — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water. The water-quality readings cover nutrients and algae, not lodging. Cabins and rentals around Woodruff Creek Reservoir are listed below.
Top-rated places to stay near Woodruff Creek Reservoir
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Fishing Woodruff Creek Reservoir
Water quality readings over time
2 seasons of samples on record (2015–2021). Calling a direction takes at least 4 years of the same measurement.
Water clarity
Worsening2 years
Reservoir Info (USACE NID)
Woodruff Creek Reservoir is a man-made reservoir impounded by the Woodruff Creek (completed 1970), built primarily for irrigation on the Woodruff Creek; earth-type dam, 103 ft tall and 605 ft long.
- Normal storage
- 4,350 ac-ft
- Max storage
- 5,529 ac-ft
- Drainage area
- 58 sq mi
- Hazard class
- High
- Owner
- WOODRUFF RESERVOIR & IRRIGATION COMPANY
Source: USACE National Inventory of Dams, NID ID UT00332 · Operator website
Nearby Lakes in Rich County
Frequently asked questions about Woodruff Creek Reservoir
Where is Woodruff Creek Reservoir?
- Woodruff Creek Reservoir is a lake in Rich County, Utah. Its water-quality measurements are published by Utah DWQ and shown on this page as reported.
What is the water quality of Woodruff Creek Reservoir?
- Woodruff Creek Reservoir in Rich County, Utah has water-quality measurements published by Utah DWQ, shown here as reported. Water clarity: 11.5 ft visibility. Phosphorus: 41.5 µg/L. Chlorophyll-a (algae): 8.1 µg/L.
Is Woodruff Creek Reservoir safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Woodruff Creek Reservoir?
- No published bathymetric survey covers Woodruff Creek 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.
Explore Woodruff Creek Reservoir across LakeQuality
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Other Lakes in Utah
Eutrophic Lakes in Utah
Where this data comes from
30 measurements from 1 monitoring station, 2015–2021. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Utah Department Of Environmental Quality
UTAHDWQ_WQX30 samples · 2015–2021
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)