Tap Water Results

Is Morgan Hill, 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 Morgan Hill. 3 PFAS were detected below the limits.

City of Morgan Hill supplies Morgan Hill (47,374 people).

Water system

City of Morgan Hill

47,374 people · Groundwater · EPA ID CA4310006

PFASHighest averageLimitStatus
PFOA
Not detected
–4 pptNot detected
PFOS
Not detected
–4 pptNot detected
PFHxS
Detected, below limit
3 ppt10 pptDetected, below limit
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 (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.

Morgan Hill homes and lead pipes

34%
of homes built before 1980 (California 56%, US 50%)
3%
built before 1950 (California 14%)
28%
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 Morgan Hill city (tables B25034, B25003). Estimates for small places have a margin of error.

How nearby cities compare

CityMain water systemPFASLead (90th pct.)
Gilroy 9 mi
City of Gilroy
City of GilroyAbove limit2 ppb
San Jose 15 mi
San Jose Water
San Jose WaterNone above limits0 ppb
Watsonville 16 mi
City of Watsonville
City of WatsonvilleAbove limit1.2 ppb
Los Gatos 19 mi
San Jose Water
San Jose WaterNone above limits0 ppb
Hollister 23 mi
City of Hollister
City of HollisterNone above limits1.4 ppb
Santa Clara 24 mi
City of Santa Clara
City of Santa ClaraNone above limits2.7 ppb
Morgan Hill ZIP codes (1)
  • 95037

Questions

Is Morgan Hill tap water safe to drink?

City of Morgan Hill 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 Morgan Hill, CA?

City of Morgan Hill, which serves 47,374 people.

Does Morgan Hill tap water have PFAS?

City of Morgan Hill had 3 PFAS detected at least once in EPA's 2023–2025 testing, all with averages below the federal limits.

Do Morgan Hill homes have lead pipes?

Census estimates put 34% of Morgan Hill 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 Morgan Hill'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.