Chatfield Reservoir is a productive, nutrient-rich eutrophic lake in Jefferson County, Colorado. Water quality is graded D based on 1 sampling years through 2020. Compared to the 1 other monitored lakes in Jefferson County, Chatfield Reservoir ranks #2 for water quality.
Source: EPA Water Quality Portal sampling records, Colorado DNR, last sampled 2020-08-21. Grade methodology: LakeGrade methodology.
Watch Chatfield Reservoir water quality
Subscribe for LakeQuality updates by email. No spam, unsubscribe anytime.
Swimming Safety
Swimming not recommended, poor water quality with high algae risk
Water Quality Grade: D, Poor
Murky, only visible to about 6.2 ft. Trophic State Index: 51.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 6.2 ft | D |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 51 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Chatfield Reservoir
Compare lakeside cabins, hotels, and vacation rentals near Chatfield Reservoir in Jefferson County, Colorado — live availability and prices for your trip.
Top-rated places to stay near Chatfield 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 Chatfield Reservoir?
Get lake water-quality report cards plus the best cabin & lodging deals near Chatfield Reservoir — straight to your inbox. No spam, unsubscribe anytime.
Fishing Chatfield Reservoir
Location
County Ranking
Ranked #2 of 2 lakes in Jefferson County
Nearby Lakes in Jefferson County
Explore Chatfield Reservoir across LakeGrade
More Colorado Lake Rankings
Other Grade D Lakes in Colorado
Eutrophic Lakes in Colorado
More records, surveys & data sources
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2020-08-21
Monitoring stations: 1