Is Benicia, CA tap water safe?
Data: U.S. EPA · How we read the data · How we check it
Summary
No federal limits exceeded in EPA data for City of Benicia. 3 PFAS were detected below the limits.
City of Benicia supplies Benicia (27,131 people).
Water system
City of Benicia
27,131 people · Surface water · EPA ID CA4810001
| PFAS | Highest average | Limit |
|---|---|---|
| PFOA Not detected | – | 4 ppt |
| PFOS Not detected | – | 4 ppt |
| PFHxS Not detected | – | 10 ppt |
| PFNA Not detected | – | 10 ppt |
| HFPO-DA (GenX) Not detected | – | 10 ppt |
ppt = parts per trillion. "Highest average" is the highest average at any of the system's entry points, the way EPA compares results with the limits.
Lead: 2.3 ppb at the 90th percentile (Dec 2024, and 9 in 10 homes sampled were at or below it) Below action level
Health-based violations since 2016: 0
Across California, 129 of 691 water systems EPA tested had PFAS above a 2024 federal limit, and 26 systems were above the lead action level in results from the last five years. California results.
Benicia homes and lead pipes
Lead service lines and lead solder were allowed until 1986, so homes from before then are the ones to check. Renting? Ask your landlord what the service line is made of, because it's their pipe to replace. How to check your own line.
Housing: Census American Community Survey 2020–2024 5-year estimates for Benicia city (tables B25034, B25003). Estimates for small places have a margin of error.
How nearby cities compare
| City | PFAS | Lead (90th pct.) |
|---|---|---|
| Martinez 6 mi East Bay Municipal Utility District | None above limits | 0 ppb |
| Vallejo 6 mi City of Vallejo | None above limits | 0 ppb |
| Hercules 8 mi East Bay Municipal Utility District | None above limits | 0 ppb |
| Pleasant Hill 9 mi East Bay Municipal Utility District | None above limits | 0 ppb |
| Concord 11 mi Contra Costa Water District | None above limits | 0 ppb |
| Lafayette 13 mi East Bay Municipal Utility District | None above limits | 0 ppb |
Benicia ZIP codes (1)
- 94510
Questions
Is Benicia tap water safe to drink?
City of Benicia has had no health-based violations since 2016. Utility data can't show lead from your own pipes: if your home was built before 1986, test your tap. Your utility's annual Consumer Confidence Report is the official summary.
Who supplies water in Benicia, CA?
City of Benicia, which serves 27,131 people.
Does Benicia tap water have PFAS?
City of Benicia had 3 PFAS detected at least once in EPA's 2023–2025 testing, all with averages below the federal limits.
Do Benicia homes have lead pipes?
Census estimates put 45% of Benicia homes as built before 1980 (California: 56%). Lead service lines and lead solder were allowed until 1986, so older homes are more likely to have them. City of Benicia's service line inventory says what your line is made of. The only way to know for your home is to check the line where it enters the house and test your tap.
Source: U.S. EPA drinking water records and PFAS testing (UCMR 5). How we read the data.