Lopez Reservoir
San Luis Obispo County, California29 acresView mapDirections
No nutrient or algae sampling on record from SWRCB for this lake.
Lopez Reservoir in San Luis Obispo County, California has water-quality measurements published by SWRCB, shown here as reported. Surface area: 29 acres.
Lopez Reservoir is a 29-acre lake in San Luis Obispo 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 Lopez 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 Lopez Reservoir
These are the measurements SWRCB publishes for Lopez 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 Lopez Reservoir
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
29 acres
Shoreline
1.5 mi
No bathymetric survey has been published for Lopez Reservoir, so its depth is not documented here.
Stays via Stay22
Stays near Lopez Reservoir
Compare lakeside cabins, hotels, and vacation rentals near Lopez Reservoir in San Luis Obispo 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.
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Fishing Lopez Reservoir
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Frequently asked questions about Lopez Reservoir
Where is Lopez Reservoir?
- Lopez Reservoir is a lake in San Luis Obispo County, California. Its water-quality measurements are published by SWRCB and shown on this page as reported.
What is the water quality of Lopez Reservoir?
- Lopez Reservoir in San Luis Obispo County, California has water-quality measurements published by SWRCB, shown here as reported. Surface area: 29 acres.
Is Lopez Reservoir safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
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Where this data comes from
Measurements for Lopez Reservoir come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.