Oceanside water quality
Water samples, official beach notices, and an experimental ocean forecast.
Check the current beach notice
Lab results describe water collected on the sample date. Conditions can change between samples.
Check San Diego County closures and advisories →Latest available samples in Oceanside
Lab data retrieved . Sample dates are listed below.
Results retain their reported units and qualifiers. DNA copies and culture counts use different methods. Outlet samples describe the outlet, rather than the adjacent swimming beach.
| Monitoring station | Sample date | Indicator | Reported result |
|---|---|---|---|
| St. Malo BeachOC-010 | Enterococcus | <10 MPN/100ml | |
| St. Malo BeachOC-010 | Fecal Coliforms | <2 MPN/100ml | |
| St. Malo BeachOC-010 | Total Coliforms | <2 MPN/100ml | |
| Cassidy StreetOC-020 | Enterococcus | <10 MPN/100ml | |
| Cassidy StreetOC-020 | Fecal Coliforms | <2 MPN/100ml | |
| Cassidy StreetOC-020 | Total Coliforms | <2 MPN/100ml | |
| 500'N. of Loma Alta outletOC-030 | Enterococcus | 1740 MPN/100ml | |
| 500'N. of Loma Alta outletOC-030 | Fecal Coliforms | 230 MPN/100ml | |
| 500'N. of Loma Alta outletOC-030 | Total Coliforms | 9800 MPN/100ml | |
| Forster StreetOC-040 | Enterococcus | <10 MPN/100ml | |
| Forster StreetOC-040 | Fecal Coliforms | <2 MPN/100ml | |
| Forster StreetOC-040 | Total Coliforms | 2 MPN/100ml | |
| Tyson StreetOC-050 | Enterococcus | <10 MPN/100ml | |
| Tyson StreetOC-050 | Fecal Coliforms | <2 MPN/100ml | |
| Tyson StreetOC-050 | Total Coliforms | 4 MPN/100ml | |
| San Luis Rey River outletOC-100 | Enterococcus | 236 Copies/100ml | |
| San Luis Rey River outletOC-100 | Fecal Coliforms | 2 CFU/100ml | |
| San Luis Rey River outletOC-100 | Total Coliforms | <2 CFU/100ml | |
| Harbor BeachOC-110 | Enterococcus | 207 Copies/100ml | |
| Surfrider WayOC-090 | Enterococcus | 1123 Copies/100ml | |
| Loma Alta Creek oultetOC-022 | Enterococcus | 311 Copies/100ml | |
| Loma Alta Creek oultetOC-022 | Fecal Coliforms | 2 MPN/100ml | |
| Loma Alta Creek oultetOC-022 | Total Coliforms | 17 MPN/100ml | |
| Oceanside pierOC-080 | Enterococcus | 499 Copies/100ml |
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