Tap Water Results

Is Loma Linda, 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 Loma Linda.

2 public water systems serve parts of Loma Linda. The largest, City of Loma Linda, serves 25,208 people. Your water bill names your system.

Largest system

City of Loma Linda

25,208 people · Groundwater · EPA ID CA3610013

Buys treated water from Redlands City Municipal Utility District – Water Division, Loma Linda University Water System, City of San Bernardino.

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: 0 ppb at the 90th percentile (Nov 2026, 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.

Loma Linda homes and lead pipes

43%
of homes built before 1980 (California 56%, US 50%)
7%
built before 1950 (California 14%)
62%
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. 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 Loma Linda city (tables B25034, B25003). Estimates for small places have a margin of error.

Other water systems serving Loma Linda

  • Loma Linda University Water System
    455 people · Groundwater · California · reported ZIPs here
    PFOS detectedAlso: PFHxS detected

How nearby cities compare

CityMain water systemPFASLead (90th pct.)
Colton 4 mi
West Valley Water District
West Valley Water DistrictNone above limits0 ppb
Redlands 5 mi
Redlands City Municipal Utility District – Water Division
Redlands City Municipal Utility District – Water DivisionAbove limit2.9 ppb
Highland 7 mi
East Valley Water District
East Valley Water DistrictAbove limit0 ppb
San Bernardino 7 mi
City of San Bernardino
City of San BernardinoNone above limits0 ppb
Moreno Valley 9 mi
Eastern Municipal Water District
Eastern Municipal Water DistrictNone above limits2.8 ppb
Rialto 9 mi
West Valley Water District
West Valley Water DistrictNone above limits0 ppb
Loma Linda ZIP codes (2)
  • 92350
  • 92354

Questions

Is Loma Linda tap water safe to drink?

City of Loma Linda 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 Loma Linda, CA?

2 public water systems serve parts of Loma Linda. The largest is City of Loma Linda (25,208 people). Your water bill names your system. The EPA ID is also on your utility's Consumer Confidence Report.

Does Loma Linda tap water have PFAS?

None detected above EPA's reporting limits. City of Loma Linda 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 Loma Linda homes have lead pipes?

Census estimates put 43% of Loma Linda 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 Loma Linda'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.