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Not health advice. Contact your local water utility for concerns.
Data from EPA Water Quality Reports. For official information, contact your water utility or health department.
EPA SDWIS/ECHO 2026Q2 · UCMR5 (2023–2026, July 2026 release) · SYR4 six-year review 2012–2019 · Methodology
Grade A — based on EPA compliance records, lead testing and PFAS monitoring
SAN DIEGO, CITY OF has a clean recent record: no health-based violations in the last five years and no lead, PFAS or historical monitoring result that costs it more than a few points.
Yes — by EPA's records San Diego, CA tap water is safe to drink and earns an A. The grade rests on no health-based EPA violations in the last five years and lead at 0 ppb (90th percentile, 2023) against the 15 ppb action level. Lead from your own service line or plumbing is the main risk city-level data cannot see, so homes built before 1986 should still test at the tap.
Yes — by EPA's records San Diego, CA tap water is safe to drink and earns an A. The grade rests on no health-based EPA violations in the last five years and lead at 0 ppb (90th percentile, 2023) against the 15 ppb action level. Lead from your own service line or plumbing is the main risk city-level data cannot see, so homes built before 1986 should still test at the tap.
SAN DIEGO, CITY OF's most recent Lead and Copper Rule result (2021-01-01 to 2023-12-31) was 0 ppb at the 90th percentile, below EPA's 15 ppb action level. Because lead usually comes from service lines and household plumbing, homes built before 1986 should still test at the tap.
No. None of the 464 UCMR5 PFAS results for SAN DIEGO, CITY OF (2023-01-25 to 2023-12-07) were at or above the reporting limit of roughly 3–5 ppt.
SAN DIEGO, CITY OF has 7 violations on file since 2016: 0 health-based in the last five years and 0 monitoring or reporting violations in that window. Monitoring violations are paperwork lapses, not measured contamination.
SAN DIEGO, CITY OF reports surface water as its primary source and serves about 1,385,379 people (EPA PWSID CA3710020).
Not on the strength of EPA's data for SAN DIEGO, CITY OF. A filter still helps with taste and with lead from your own plumbing, which no city-level test can measure.
Even with good water quality, a filter removes trace contaminants and improves taste.
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