Rogers County, Oklahoma · Water Quality Report Card
Chelsea Reservoir
Chelsea Reservoir in Rogers County, Oklahoma is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 2.2 ft visibility.
- Clarity
- 2.2 ft
- Type
- Eutrophic
Chelsea Reservoir is a productive, nutrient-rich eutrophic lake in Rogers County, Oklahoma.
Source: EPA Water Quality Portal sampling records, ODEQ, last sampled 2018-07-16. Grade methodology: LakeGrade methodology.
Watch Chelsea Reservoir water quality
Subscribe for LakeQuality updates by email. No spam, unsubscribe anytime.
Swimming Safety
Not rated for swimming — there is not enough monitoring data to judge this lake
Water Quality Grade: Not rated
Very murky, less than 2.2 ft of visibility. Trophic State Index: 66.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.2 ft | |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 66 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Chelsea Reservoir
Compare lakeside cabins, hotels, and vacation rentals near Chelsea Reservoir in Rogers County, Oklahoma — 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 Chelsea Reservoir
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Planning a trip to Chelsea Reservoir?
Get lake water-quality report cards plus the best cabin & lodging deals near Chelsea Reservoir — straight to your inbox. No spam, unsubscribe anytime.
Planning a whole trip? See where to stay at Oklahoma’s top lakes →
Fishing Chelsea Reservoir
Location
Nearby Lakes in Rogers County
Explore Chelsea Reservoir across LakeGrade
More Oklahoma Lake Rankings
Other Lakes in Oklahoma
Eutrophic Lakes in Oklahoma
More records, surveys & data sources
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)
Grade thresholds come from the U.S. EPA National Lakes Assessment 2022 Technical Support Document (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated.
Data Sources
Water quality data from the EPA Water Quality Portal
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion
Most recent sample: 2018-07-16
Monitoring stations: 3