STERLING CITY OF: EPA violation history, explained
STERLING 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: 15,100, over 4,655 connections.
Ranked against every other system in this dataset
75 total violations and 27 health-based ones put STERLING CITY OF at the 95th percentile nationally for violation burden, rank 642 of 12,903.
How STERLING CITY OF compares within CO
CO's 230 covered systems average 3.0 health-based violations each; STERLING CITY OF carries 27, 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 STERLING CITY OF is from 2023-01-08 (health-based: 2013-01-07). Last reported to EPA: 06/17/2026.
What kind of problem, specifically
STERLING 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)
- Radionuclides - flagged from: Combined Uranium
- Nitrate / nitrite - flagged from: Nitrate-Nitrite
- Disinfection byproducts - flagged from: TTHM
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 STERLING CITY OF's own reported record under the Safe Drinking Water Act - a regulatory filing, not a sample of your tap. Between the utility's meter and STERLING CITY OF's customers' taps is household plumbing, invisible to a system-level record ranked 642th of 12,903 by violation count. The guide to what this data misses covers that gap.