What's in UPLAND, CITY OF's water?
UPLAND, CITY OF has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. It serves 78,376 people through 20,166 service connections.
UPLAND, CITY OF's record against the rest of the country
4 total violations and 1 health-based ones put UPLAND, CITY OF at the 32th percentile nationally for violation burden, rank 8,798 of 12,903.
How UPLAND, CITY OF compares within CA
CA's 803 covered systems average 5.8 health-based violations each; UPLAND, CITY OF carries 1, not more than typical for the state. See the lead and copper guide for why lead counts differently.
Most recent violation on record
The last violation EPA has on record for UPLAND, CITY OF is from 2019-01-10 (health-based: 1987-01-08). Last reported to EPA: 06/22/2026.
What kind of problem, specifically
UPLAND, CITY OF'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
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
UPLAND, CITY OF's numbers here come from its own required reporting to EPA under the Safe Drinking Water Act, not from an independent test of your glass of water. Between the utility's meter and UPLAND, CITY OF's customers' taps is household plumbing, invisible to a system-level record ranked 8,798th of 12,903 by violation count. The guide to what this data misses covers that gap.