Big Water Lake
Merced County, California91 acresView mapDirections
No nutrient or algae sampling on record from SWRCB for this lake.
Big Water Lake in Merced County, California has water-quality measurements published by SWRCB, shown here as reported. Surface area: 91 acres.
Big Water Lake is a 91-acre lake in Merced 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 Big Water Lake 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 Big Water Lake
These are the measurements SWRCB publishes for Big Water Lake, 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 Big Water Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
91 acres
Shoreline
2.6 mi
No bathymetric survey has been published for Big Water Lake, so its depth is not documented here.
Stays via Stay22
Stays near Big Water Lake
Compare lakeside cabins, hotels, and vacation rentals near Big Water Lake in Merced 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 Big Water Lake
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 Big Water Lake’s readings
Email me when new measurements post for this lake. Updates stay free.
Or email
Fishing Big Water Lake
Nearby Lakes in Merced County
Frequently asked questions about Big Water Lake
Where is Big Water Lake?
- Big Water Lake is a lake in Merced County, California. Its water-quality measurements are published by SWRCB and shown on this page as reported.
What is the water quality of Big Water Lake?
- Big Water Lake in Merced County, California has water-quality measurements published by SWRCB, shown here as reported. Surface area: 91 acres.
Is Big Water Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Explore Big Water Lake across LakeQuality
More lakes in California
Other Lakes in California
Where this data comes from
Measurements for Big Water Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.