Chelsea Reservoir
Rogers County, Oklahoma22 acresView mapDirections
Oklahoma DEQ publishes the water-quality measurements for Chelsea Reservoir. Here is what has been measured.
- Limited data
Ask about Chelsea Reservoir
Answers come straight from the public measurements and survey records on this page.
Chelsea Reservoir in Rogers County, Oklahoma has water-quality measurements published by Oklahoma DEQ, shown here as reported. Water clarity: 2.2 ft visibility. Surface area: 22 acres.
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Chelsea Reservoir is a 22-acre lake in Rogers County, Oklahoma.
Source: EPA Water Quality Portal sampling records, ODEQ, last sampled 2018-07-16. Grade methodology: LakeQuality methodology.
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Chelsea Reservoir is safe to swim in today is a call for the Oklahoma Department of Environmental Quality and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Chelsea Reservoir
These are the measurements Oklahoma DEQ publishes for Chelsea 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 2.2 ft of visibility. TSI 66.
| Metric | Value | EPA condition class |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.2 ft | Measured, not scored |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 66 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 22 acres |
No bathymetric survey has been published for Chelsea Reservoir, so its depth is not documented here.
Fishing Chelsea Reservoir
Reservoir Info (USACE NID)
Chelsea Reservoir is a man-made reservoir impounded by the Chelsea Reservoir No. 1 (completed 1950), built primarily for water supply on the Spencer Creek; earth-type dam, 45 ft tall and 760 ft long.
- Surface area
- 22 ac
- Normal storage
- 102 ac-ft
- Max storage
- 570 ac-ft
- Hazard class
- Low
- Owner
- TOWN OF CHELSEA
Source: USACE National Inventory of Dams, NID ID OK10481 · Operator website · Matched by proximity (0.26 km)
Nearby Lakes in Rogers County
Frequently asked questions about Chelsea Reservoir
Where is Chelsea Reservoir?
- Chelsea Reservoir is a lake in Rogers County, Oklahoma. Its water-quality measurements are published by Oklahoma DEQ and shown on this page as reported.
What is the water quality of Chelsea Reservoir?
- Chelsea Reservoir in Rogers County, Oklahoma has water-quality measurements published by Oklahoma DEQ, shown here as reported. Water clarity: 2.2 ft visibility. Surface area: 22 acres.
Is Chelsea Reservoir safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Explore Chelsea Reservoir across LakeQuality
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Where this data comes from
12 measurements from 3 monitoring stations, 2017–2018. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- OWRB Lakes Monitoring
OKWRB-LAKES_WQX12 samples · 2017–2018
Analytical methods
- OWRB Lakes Field Data Collection
Monitoring station identifiers (3)
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.