Essex Reservoir
Modoc County, California204 acresView mapDirections
No nutrient or algae sampling on record from SWRCB for this lake.
Essex Reservoir in Modoc County, California has water-quality measurements published by SWRCB, shown here as reported. Surface area: 204 acres.
Essex Reservoir is a 204-acre lake in Modoc County, California.
Source: EPA Water Quality Portal sampling records, your state environmental agency. Methodology: how these readings are compared.
Swimming conditions
No readingNot rated
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Essex Reservoir is safe to swim in today is a call for the California State Water Resources Control Board and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Essex Reservoir
These are the measurements SWRCB publishes for Essex Reservoir, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
No clarity data. TSI undefined.
Ask about Essex Reservoir
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
204 acres
Shoreline
6.4 mi
No bathymetric survey has been published for Essex Reservoir, so its depth is not documented here.
Stays via Stay22
Stays near Essex Reservoir
Compare lakeside cabins, hotels, and vacation rentals near Essex Reservoir in Modoc County, California — 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 Essex Reservoir
Prices for Oct 16–18, 4 adults. Change dates on the map below.
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Follow Essex Reservoir’s readings
Email me when new measurements post for this lake. Updates stay free.
Or email
Fishing Essex Reservoir
Nearby Lakes in Modoc County
Frequently asked questions about Essex Reservoir
Where is Essex Reservoir?
- Essex Reservoir is a lake in Modoc County, California. Its water-quality measurements are published by SWRCB and shown on this page as reported.
What is the water quality of Essex Reservoir?
- Essex Reservoir in Modoc County, California has water-quality measurements published by SWRCB, shown here as reported. Surface area: 204 acres.
Is Essex Reservoir safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Explore Essex Reservoir across LakeQuality
More lakes in California
Other Lakes in California
Where this data comes from
Measurements for Essex Reservoir come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.