Causey Reservoir
Weber County, Utah136 acresView mapDirections
Clarity, phosphorus, and algae sit in the clean band for this region.
↓ down from A at the last regrade
- Oligotrophic
- #1 of 7 in the county
- Limited data
Causey Reservoir in Weber County, Utah has a water quality grade of B (Good). Water clarity: 15.1 ft visibility. Phosphorus: 7.8 µg/L. Chlorophyll-a (algae): 1.7 µg/L. Surface area: 136 acres.
- Clarity
- 15.1 ft
- Area
- 136 acres
- Type
- Oligotrophic
- Phosphorus
- 7.8 µg/L
- Chlorophyll-a
- 1.7 µg/L
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Watch Causey Reservoir’s letter
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Causey Reservoir is a 136-acre cold, clear oligotrophic lake in Weber County, Utah. Water quality is graded B based on 1 sampling years through 2022. Compared to the 6 other monitored lakes in Weber County, Causey Reservoir ranks #1 for water quality.
Source: EPA Water Quality Portal sampling records, Utah DWQ, last sampled 2022-07-27. Grade methodology: LakeQuality methodology.
What Causey Reservoir is good for
From access and monitoring records, not editorial picks.
- Clear water15.1 ft of visibility
- Camping4 public campgrounds nearby
Swimming Safety
Grade onlyLimited data
Based on clarity and algae grades from past sampling — we do not hold live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
The B is nutrients and algae, not a swimming clearance. Check local advisories before you swim.
Water Quality Grade: B (Good)
Crystal clear, you can see 15.1 ft down. Phosphorus 7.8 µg/L. Chlorophyll-a 1.7 µg/L. TSI 36. The letter is not a swimming clearance.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 15.1 ft | Not graded |
| Phosphorus | 7.8 µg/L | Good |
| Chlorophyll-a (Algae) | 1.7 µg/L | Not graded |
| Trophic State Index (TSI) | 36 | Oligotrophic |
Low nutrients, clear water. The letter is not a swimming clearance.
Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 136 acres |
No bathymetric survey has been published for Causey Reservoir, so its depth is not documented here.
Recreation & Access
Public campgrounds near Causey Reservoir
- Willows Cg4.1 km
- Upper Meadows4.3 km
- Perception Park Family Cg4.7 km
- Lower Meadows4.9 km
Nearest public campgrounds in the USGS National Map inventory, within about 3 miles. An empty list means USGS records no campground that close, which is not the same as camping being unavailable. Where the source gives an official reservation link, it is used; the cabin and hotel search does not cover campsites. More camping lakes
Fishing Causey Reservoir
Reservoir Info (USACE NID)
Causey Reservoir is a man-made reservoir impounded by the Causey Dam (completed 1966), built primarily for irrigation on the South Fork Ogden River; earth-type dam, 218 ft tall and 845 ft long.
- Surface area
- 136 ac
- Normal storage
- 7,870 ac-ft
- Max storage
- 8,730 ac-ft
- Drainage area
- 80.42 sq mi
- Hazard class
- High
- Owner
- BUREAU OF RECLAMATION
Source: USACE National Inventory of Dams, NID ID UT10116 · Operator website
County Ranking
Ranked #1 of 7 lakes in Weber County
Nearby Lakes in Weber County
Frequently asked questions about Causey Reservoir
Where is Causey Reservoir?
- Causey Reservoir is a lake in Weber County, Utah. LakeQuality grades it B for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for Causey Reservoir?
- Causey Reservoir in Weber County, Utah has a water quality grade of B (Good). Water clarity: 15.1 ft visibility. Phosphorus: 7.8 µg/L. Chlorophyll-a (algae): 1.7 µg/L. Surface area: 136 acres.
Is Causey Reservoir safe to swim in?
- The B is nutrients and algae, not a swimming clearance. Check local advisories before you swim.
Are there campgrounds on Causey Reservoir?
- Causey Reservoir has 4 public campgrounds from USGS The National Map within 5 km, including Willows Cg, Upper Meadows, Perception Park Family Cg, Lower Meadows. This is a location join, not a booking. Cabins and hotels are listed separately; campsite reservations use the official link when the source provides one.
Explore Causey Reservoir across LakeQuality
12.6 mi away · recorded at 68°F
Species activity outlook by water temperature and season
Where to stay at Utah's top lakes, each with its grade
Low nutrients, clear water. The letter is not a swimming clearance.
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Other Grade B Lakes in Utah
Oligotrophic Lakes in Utah
Where this data comes from
8 measurements from 1 monitoring station, 2022. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Utah Department Of Environmental Quality
UTAHDWQ_WQX8 samples · 2022
Analytical methods
- Field Measurements
- Phosphorus by Colorimetry
- 10200 H ~ Chlorophyll a-b-c Determination
Monitoring station identifiers (1)
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated and data sources.
Other records on this page
Public campgrounds from USGS The National Map Structures, within about 3 miles