Is BOULDER CITY OF's water safe to drink?
BOULDER 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: 166,080, over 31,959 connections.
Ranked against every other system in this dataset
8 total violations and 3 health-based ones put BOULDER CITY OF at the 59th percentile nationally for violation burden, rank 5,355 of 12,903.
Against the CO average
CO's 230 covered systems average 3.0 health-based violations each; BOULDER CITY OF carries 3, not more than typical for the state. The filter guide explains what a violation like this actually calls for.
Most recent violation on record
BOULDER CITY OF's most recent violation on record is dated 2024-01-10, with the most recent health-based one dated 2017-01-07. Last reported to EPA: 06/17/2026.
The concern categories on record
BOULDER 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: Interim Enhanced Surface Water Treatment Rule
- Disinfection byproducts - flagged from: 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 BOULDER CITY OF's record does not cover
BOULDER 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 - 3 health-based violations on file for BOULDER 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.