Nps-Wolverton, CA Water Quality
What's in Nps-Wolverton's water?
Nps-Wolverton had a health-based violation within the last five years. The required corrective action was reported, but it happened recently enough to matter. Population served: 2,940, over 125 connections.
How this compares nationally
Nps-Wolverton has 115 violations on record in total, 108 of them health-based - ranking it 62th of 12,903 systems by violation count, the 100th percentile nationally.
How Nps-Wolverton compares within CA
CA's 804 covered systems average 5.8 health-based violations each; Nps-Wolverton carries 108, more than typical for the state. The clean-record guide covers what a comparison like this can hide.
Most recent violation on record
The last violation EPA has on record for Nps-Wolverton is from 2025-02-07 (health-based: 2023-01-10). Last reported to EPA: 06/22/2026.
What kind of problem, specifically
Nps-Wolverton'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:
- Microbial contamination / treatment technique - flagged from: Surface Water Treatment Rule
- Disinfection byproducts - flagged from: Tthm; Total Haloacetic Acids (HAA5)
The most severe category on record is microbial contamination / treatment technique, which points toward a microbial-class filter if you want to address it directly.
What this data is and is not
Everything on this page is Nps-Wolverton's own reported record under the Safe Drinking Water Act - a regulatory filing, not a sample of your tap. Water quality can still change between the meter and the faucet - household plumbing sits outside what a record of 115 logged violations can see. The guide to what this data misses covers that gap.