- EPA's UCMR 5 testing looked for 30 contaminants here and found 7.
- Lithium: found in 6 of 8 samples, average 15.4 µg/L, highest 34.8 µg/L (EPA UCMR 5 testing, Feb 2023–May 2024)
- PFPeA (a PFAS): found in 1 of 8 samples, average 2.7 ppt, highest 22 ppt (EPA UCMR 5 testing, Feb 2023–Aug 2024)
- PFHxA (a PFAS): found in 1 of 8 samples, average 2.2 ppt, highest 17.9 ppt (EPA UCMR 5 testing, Feb 2023–Aug 2024)
- PFBA (a PFAS): found in 1 of 8 samples, average 1.1 ppt, highest 8.8 ppt (EPA UCMR 5 testing, Feb 2023–Aug 2024)
- PFHpA (a PFAS): found in 1 of 8 samples, average 0.60 ppt, highest 5 ppt (EPA UCMR 5 testing, Feb 2023–Aug 2024)
- PFOA (a PFAS): found in 1 of 8 samples, average 0.60 ppt, highest 4.6 ppt (EPA UCMR 5 testing, Feb 2023–Aug 2024)
- PFBS (a PFAS): found in 1 of 8 samples, average 0.60 ppt, highest 4.5 ppt (EPA UCMR 5 testing, Feb 2023–Aug 2024)
- Lead, 90th percentile: 1.4 ppb at the latest result in EPA records for a monitoring period that ran on or after July 1, 2021, at or below EPA's 15 ppb action level (EPA SDWIS, monitoring period Jan 1, 2023–Dec 31, 2025). The 90th percentile is a system-wide measure from homes sampled under EPA's lead rule; it isn't a result for your home.
Public EPA test results
Can you drink Santa Monica tap water? What EPA records show
EPA CA1910146 · serves Santa Monica, CA · about 90,729 people (EPA SDWIS)
This report shows EPA's federal records for this water system: UCMR 5 testing, lead testing and violations. It isn't a test of the water at your tap, and it has no Water Score.
Public EPA test results
Santa Monica-City, Water Division (EPA CA1910146)
EPA data as of October 14, 2026. For Santa Monica's main utility, Santa Monica-City, Water Division: We found no health-based violations in EPA's records for this system (CA1910146) since July 1, 2021, as of October 14, 2026. EPA's UCMR 5 testing looked for 30 contaminants here and found 7. This is public data, not a test of your tap.
What EPA records show for Santa Monica-City, Water Division, as of October 14, 2026
We found no health-based violations in EPA's records for this system (CA1910146) since July 1, 2021, as of October 14, 2026.
Source: EPA ECHO record for Santa Monica-City, Water Division (SDWIS). Data as of October 14, 2026.
Lead, 90th percentile: 1.4 ppb at the latest result in EPA records for a monitoring period that ran on or after July 1, 2021, at or below EPA's 15 ppb action level (EPA SDWIS, monitoring period Jan 1, 2023–Dec 31, 2025). The 90th percentile is a system-wide measure from homes sampled under EPA's lead rule; it isn't a result for your home.
EPA's UCMR 5 testing looked for 30 contaminants here and found 7.
Source: EPA records (SDWIS, UCMR 5). SDWIS: data as of Oct 14, 2026. EPA UCMR 5 data, samples through June 2026.
Your water bill names your utility.
Does Santa Monica-City, Water Division use chloramine?
EPA treatment records (state-reported) list chloramines for Santa Monica-City, Water Division. EPA record