Tap Water Results

Is San Jacinto, 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 Eastern Municipal Water District.

4 public water systems serve parts of San Jacinto. The largest, Eastern Municipal Water District, serves 659,923 people, and one system here had PFAS above a federal limit. Your water bill names your system.

Largest system

Eastern Municipal Water District

659,923 people · Purchased surface water · EPA ID CA3310009

Buys treated water from Rancho California Water District, Western Municipal Water District, Lake Hemet Municipal Water District, Metropolitan Water District of SO. Cal., Elsinore Valley Municipal Water District.

PFASHighest averageLimitStatus
PFOA
Not detected
–4 pptNot detected
PFOS
Not detected
–4 pptNot detected
PFHxS
Not detected
–10 pptNot detected
PFNA
Not detected
–10 pptNot detected
HFPO-DA (GenX)
Not detected
–10 pptNot detected

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: 2.8 ppb at the 90th percentile (Dec 2025, and 9 in 10 homes sampled were at or below it) Below action level
Health-based violations since 2016: 0

Full Eastern Municipal Water District results

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.

San Jacinto homes and lead pipes

24%
of homes built before 1980 (California 56%, US 50%)
5%
built before 1950 (California 14%)
25%
of households rent (California 44%)

Lead service lines and lead solder were allowed until 1986, so homes from before then are the ones to check. How to check your own line.

Housing: Census American Community Survey 2020–2024 5-year estimates for San Jacinto city (tables B25034, B25003). Estimates for small places have a margin of error.

Other water systems serving San Jacinto

How nearby cities compare

CityMain water systemPFASLead (90th pct.)
Hemet 4 mi
Eastern Municipal Water District
Eastern Municipal Water DistrictNone above limits2.8 ppb
Beaumont 6 mi
Beaumont Cherry Valley Water District
Beaumont Cherry Valley Water DistrictNone above limits7.8 ppb
Banning 12 mi
City of Banning
City of BanningNone above limits0 ppb
Perris 13 mi
Eastern Municipal Water District
Eastern Municipal Water DistrictNone above limits2.8 ppb
Menifee 13 mi
Eastern Municipal Water District
Eastern Municipal Water DistrictNone above limits2.8 ppb
Moreno Valley 15 mi
Eastern Municipal Water District
Eastern Municipal Water DistrictNone above limits2.8 ppb
San Jacinto ZIP codes (2)
  • 92582
  • 92583

Questions

Is San Jacinto tap water safe to drink?

Eastern Municipal Water District 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 San Jacinto, CA?

4 public water systems serve parts of San Jacinto. The largest is Eastern Municipal Water District (659,923 people). Your water bill names your system. The EPA ID is also on your utility's Consumer Confidence Report.

Does San Jacinto tap water have PFAS?

None detected above EPA's reporting limits. Eastern Municipal Water District had no PFAS detected in EPA's 2023–2025 testing. "Not detected" means below the reporting limit (about 2 to 20 ppt), not proven zero.

Do San Jacinto homes have lead pipes?

Census estimates put 24% of San Jacinto 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. Eastern Municipal Water District'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.