What's in CITY OF MORGAN HILL's water?
CITY OF MORGAN HILL has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. It serves 47,374 people through 15,003 service connections.
CITY OF MORGAN HILL's record against the rest of the country
73 total violations and 70 health-based ones put CITY OF MORGAN HILL at the 99th percentile nationally for violation burden, rank 152 of 12,903.
How CITY OF MORGAN HILL compares within CA
Among the 803 CA systems in this dataset, the average is 5.8 health-based violations - CITY OF MORGAN HILL's 70 is above that. The filter guide explains what a violation like this actually calls for.
Most recent violation on record
The last violation EPA has on record for CITY OF MORGAN HILL is from 1999-01-11 (health-based: 1993-01-08). Last reported to EPA: 06/22/2026.
What kind of problem, specifically
CITY OF MORGAN HILL's flagged contaminants and rule violations, grouped by what they actually mean for a filter choice rather than left as EPA's raw code list:
- Nitrate / nitrite - flagged from: Nitrate
- Other regulated metals - flagged from: Fluoride
The most severe category on record is nitrate / nitrite, which points toward a reverse osmosis-class filter if you want to address it directly.
What this data is and is not
This is what CITY OF MORGAN HILL reported to its state primacy agency and EPA under the Safe Drinking Water Act - real regulatory record, not a lab test of your specific tap. Water quality can still change between the meter and the faucet - household plumbing sits outside what a record of 73 logged violations can see. The guide to what this data misses covers that gap.