Wide Hollow Reservoir
Garfield County, UtahView mapDirections
Utah DWQ publishes the water-quality measurements for Wide Hollow Reservoir. Here is what has been measured.
- Mesotrophic
- Impaired · Oxygen depletion (low DO)
- Public access
Wide Hollow Reservoir in Garfield County, Utah has water-quality measurements published by Utah DWQ, shown here as reported. Water clarity: 13.8 ft visibility. Phosphorus: 36.5 µg/L. Chlorophyll-a (algae): 3.4 µg/L.
Wide Hollow Reservoir is a mesotrophic lake in Garfield County, Utah. Overall water quality is declining over recent sampling years. Limited fish-species data available. Public access is available with 1 public boat landing. Compared to the 9 other monitored lakes in Garfield County, Wide Hollow Reservoir ranks #1 for water quality.
Source: EPA Water Quality Portal sampling records, Utah DWQ, last sampled 2025-09-02. Methodology: how these readings are compared.
Wide Hollow Reservoir has one public boat landing. Vrbo is where to look for cabins and lake homes around Wide Hollow Reservoir, and Booking.com and Expedia search hotels near the lake for your dates.
What Wide Hollow Reservoir is good for
From access and monitoring records, not editorial picks.
- Clear water13.8 ft of visibility
- Boat launch1 documented ramp
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. Wide Hollow Reservoir is listed impaired under Clean Water Act §303(d) (IR 5) for oxygen depletion (low DO), pH / acidity, temperature. Check local advisories before you swim.
Whether Wide Hollow 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 Wide Hollow Reservoir
These are the measurements Utah DWQ publishes for Wide Hollow 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 13.8 ft. Phosphorus 36.5 µg/L. Chlorophyll-a 3.4 µg/L. TSI 46.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 13.8ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 36.5µg/L | Good GoodFairPoor |
| Chlorophyll-a (algae) | 3.4µg/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. | 46 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
Ask about Wide Hollow Reservoir
Answers come straight from the public measurements and survey records on this page.
Lake Size & Watershed
Watershed (drainage) area
11 sq mi
HydroLAKES / HydroSHEDS
Surface area
94 acres
HydroLAKES / HydroSHEDS
Shoreline
1.5 mi
HydroLAKES / HydroSHEDS
Elevation
5,932 ft
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).
Recreation & Access
- Wide Hollow ReservoirPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Stays via Stay22
Stays near Wide Hollow Reservoir
Compare lakeside cabins, hotels, and vacation rentals near Wide Hollow Reservoir in Garfield 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.
Top-rated places to stay near Wide Hollow Reservoir
Prices for Oct 30–Nov 1, 4 adults. Change dates on the map below.
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Fishing Wide Hollow Reservoir
Water Quality Trend: Worsening
Based on 6 years of monitoring (2012–2025).
Water clarity
Worsening6 years
Phosphorus
Worsening+4.38 µg/L/yr2 years
Chlorophyll-a
Worsening+0.16 µg/L/yr4 years
Reservoir Info (USACE NID)
Wide Hollow Reservoir is a man-made reservoir impounded by the Wide Hollow (completed 1954), built primarily for irrigation on the Escalante River--Offstream; earth-type dam, 51 ft tall and 2,300 ft long.
- Normal storage
- 2,722 ac-ft
- Max storage
- 3,701 ac-ft
- Drainage area
- 10 sq mi
- Hazard class
- High
- Owner
- NEW ESCALANTE IRRIGATION COMPANY
Source: USACE National Inventory of Dams, NID ID UT00325 · Operator website
EPA Impairment Status
Wide Hollow 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.
Source: EPA ATTAINS assessment unit UT-L-14070005-011_00 · Official waterbody report
Nearby Lakes in Garfield County
Frequently asked questions about Wide Hollow Reservoir
Where is Wide Hollow Reservoir?
- Wide Hollow Reservoir is a lake in Garfield County, Utah. Its water-quality measurements are published by Utah DWQ and shown on this page as reported.
What is the water quality of Wide Hollow Reservoir?
- Wide Hollow Reservoir in Garfield County, Utah has water-quality measurements published by Utah DWQ, shown here as reported. Water clarity: 13.8 ft visibility. Phosphorus: 36.5 µg/L. Chlorophyll-a (algae): 3.4 µg/L.
Is Wide Hollow Reservoir safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Wide Hollow Reservoir is listed impaired under Clean Water Act §303(d) (IR 5) for oxygen depletion (low DO), pH / acidity, temperature. Check local advisories before you swim.
How deep is Wide Hollow Reservoir?
- The available depth estimate for Wide Hollow Reservoir is shallower than its measured water clarity, which cannot be right, so no depth is shown.
Are there boat ramps on Wide Hollow Reservoir?
- Wide Hollow Reservoir has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Wide Hollow Reservoir. Public access is listed as yes.
Can I fish at Wide Hollow Reservoir?
- Wide Hollow Reservoir has 1 documented boat landing in the USGS National Boat Ramps inventory. 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 Wide Hollow Reservoir across LakeQuality
2 documented falls within 12.1 mi, nearest Upper Calf Creek Falls
Species activity outlook by water temperature and season
Where to stay at Utah's top lakes, each with its readings
Utah's cleanest lakes, ranked on agency measurements
Planning a trip around Bryce Canyon?
Wide Hollow Reservoir is about 33 miles from Bryce Canyon National Park. 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 Bryce Canyon →More lakes in Utah
Other Lakes in Utah
Mesotrophic Lakes in Utah
Where this data comes from
51 measurements from 1 monitoring station, 2012–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Utah Department Of Environmental Quality
UTAHDWQ_WQX51 samples · 2012–2025
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
Impairment status from EPA ATTAINS 303(d) database
Lake size & watershed from HydroLAKES (HydroSHEDS)
Named boat-access points from the USGS National Boat Ramps inventory