NAMPA CITY OF: EPA violation history, explained
NAMPA CITY OF has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. Population served: 100,200, over 38,361 connections.
Ranked against every other system in this dataset
Out of 12,903 systems in this dataset, NAMPA CITY OF ranks 3,891th by violation burden (70th percentile) - 180 violations total, 4 health-baseds.
How NAMPA CITY OF compares within ID
ID's 88 covered systems average 10.3 health-based violations each; NAMPA CITY OF carries 4, 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 NAMPA CITY OF is from 2023-01-01 (health-based: 2000-01-05). Last reported to EPA: 06/26/2026.
What kind of problem, specifically
NAMPA 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:
- Microbial contamination / treatment technique - flagged from: Coliform (TCR)
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
NAMPA 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. This record - 4 health-based violations on file for NAMPA CITY OF - stops at the meter and cannot see household plumbing on the other side of it. The guide to what this data misses covers that gap.