Cutler Reservoir
Cache County, Utah5,460 acresView mapDirections
Utah DWQ publishes the water-quality measurements for Cutler Reservoir. Here is what has been measured.
- Eutrophic
Cutler Reservoir in Cache County, Utah has water-quality measurements published by Utah DWQ, shown here as reported. Water clarity: 1.2 ft visibility. Phosphorus: 109 µg/L. Chlorophyll-a (algae): 17.4 µg/L. Surface area: 5460 acres.
Cutler Reservoir is a 5,460-acre productive, nutrient-rich eutrophic lake in Cache County, Utah. Phosphorus level is declining over recent sampling years. Compared to the 8 other monitored lakes in Cache County, Cutler Reservoir ranks #9 for water quality.
Source: EPA Water Quality Portal sampling records, Utah DWQ, last sampled 2022-07-26. Methodology: how these readings are compared.
At about 5,500 acres, Cutler Reservoir is large enough that where you stay decides which shore you see most of. For a place on the water, look through cabin and lake-house rentals near Cutler Reservoir on Vrbo. For a hotel or motel room, Booking.com and Expedia both search around the lake.
What Cutler Reservoir is good for
From access and monitoring records, not editorial picks.
- Big water5,460 acres
Swimming conditions
Readings onlyAlgae risk
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 Cutler 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 Cutler Reservoir
These are the measurements Utah DWQ publishes for Cutler Reservoir, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Very murky, less than 1.2 ft of visibility. Phosphorus 109 µg/L. Chlorophyll-a 17.4 µg/L. TSI 68.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 1.2ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 109µg/L | Poor GoodFairPoor |
| Chlorophyll-a (algae) | 17.4µg/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. | 68 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about Cutler Reservoir
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
5,460 acres
No bathymetric survey has been published for Cutler Reservoir, so its depth is not documented here.
Stays via Stay22
Stays near Cutler Reservoir
Compare lakeside cabins, hotels, and vacation rentals near Cutler Reservoir in Cache 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 Cutler Reservoir are listed below.
Top-rated places to stay near Cutler Reservoir
Prices for Oct 30–Nov 1, 4 adults. Change dates on the map below.
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Fishing Cutler Reservoir
Water Quality Trend: Stable
Based on 9 years of monitoring (2012–2022).
Water clarity
Stable9 years
Phosphorus
Worsening+10.25 µg/L/yr3 years
Chlorophyll-a
Improving-0.88 µg/L/yr5 years
Reservoir Info (USACE NID)
Cutler Reservoir is a man-made reservoir impounded by the Cutler (completed 1927), built primarily for irrigation on the Bear River; concrete-type dam, 126 ft tall and 550 ft long.
- Surface area
- 5,460 ac
- Normal storage
- 12,640 ac-ft
- Max storage
- 15,300 ac-ft
- Drainage area
- 6,267 sq mi
- Hazard class
- High
- Owner
- PacifiCorp
All listed purposes: Irrigation;Recreation;Hydroelectric.
Source: USACE National Inventory of Dams, NID ID UT00079 · Operator website
Nearby Lakes in Cache County
Frequently asked questions about Cutler Reservoir
Where is Cutler Reservoir?
- Cutler Reservoir is a lake in Cache County, Utah. Its water-quality measurements are published by Utah DWQ and shown on this page as reported.
What is the water quality of Cutler Reservoir?
- Cutler Reservoir in Cache County, Utah has water-quality measurements published by Utah DWQ, shown here as reported. Water clarity: 1.2 ft visibility. Phosphorus: 109 µg/L. Chlorophyll-a (algae): 17.4 µg/L. Surface area: 5460 acres.
Is Cutler Reservoir safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Explore Cutler Reservoir across LakeQuality
4 thermal springs within 12.7 mi, nearest Cutler Warm Spring
Species activity outlook by water temperature and season
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Where this data comes from
188 measurements from 2 monitoring stations, 2012–2022. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Utah Department Of Environmental Quality
UTAHDWQ_WQX188 samples · 2012–2022
Analytical methods
- Field Measurements
- Phosphorus by Colorimetry
- 10200 H ~ Chlorophyll a-b-c Determination
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.