Lake Nacimiento
San Luis Obispo County, California2,985 acresView mapDirections
SWRCB publishes the water-quality measurements for Lake Nacimiento. Here is what has been measured.
- Limited data
Lake Nacimiento in San Luis Obispo County, California has water-quality measurements published by SWRCB, shown here as reported. Phosphorus: 220 µg/L. Surface area: 2985 acres.
Lake Nacimiento is a 2,985-acre lake in San Luis Obispo County, California.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2017-06-26. Methodology: how these readings are compared.
What Lake Nacimiento is good for
From access and monitoring records, not editorial picks.
- Big water2,985 acres
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Lake Nacimiento 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 Lake Nacimiento
These are the measurements SWRCB publishes for Lake Nacimiento, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
No clarity data. Phosphorus 220 µg/L.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | No reading How deep a black-and-white disk stays visible from the surface. Higher is clearer. | |
| Total phosphorus | 220µg/L | Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. |
| Chlorophyll-a (algae) | No reading The green pigment in algae — a direct measure of how much algae is in the water. |
Ask about Lake Nacimiento
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
2,985 acres
No bathymetric survey has been published for Lake Nacimiento, so its depth is not documented here.
Stays via Stay22
Stays near Lake Nacimiento
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Top-rated places to stay near Lake Nacimiento
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Fishing Lake Nacimiento
Nearby Lakes in San Luis Obispo County
Frequently asked questions about Lake Nacimiento
Where is Lake Nacimiento?
- Lake Nacimiento 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 Lake Nacimiento?
- Lake Nacimiento in San Luis Obispo County, California has water-quality measurements published by SWRCB, shown here as reported. Phosphorus: 220 µg/L. Surface area: 2985 acres.
Is Lake Nacimiento 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 Lake Nacimiento come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.