St Croix Falls Waterworks, WI Water Quality
St Croix Falls Waterworks: EPA violation history, explained
St Croix Falls Waterworks has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. 2,079 people get their water from it, across 967 connections.
Ranked against every other system in this dataset
St Croix Falls Waterworks has 3 violations on record in total, 1 of them health-based - ranking it 9,058th of 12,903 systems by violation count, the 30th percentile nationally.
How St Croix Falls Waterworks compares within WI
St Croix Falls Waterworks's 1 health-based violations sit within the WI average of 5.4, across 259 systems statewide. See the lead and copper guide for why lead counts differently.
Most recent violation on record
The last violation EPA has on record for St Croix Falls Waterworks is from 2024-01-01 (health-based: 1993-01-02). Last reported to EPA: 05/29/2026.
What kind of problem, specifically
St Croix Falls Waterworks'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
This is what St Croix Falls Waterworks reported to its state primacy agency and EPA under the Safe Drinking Water Act - real regulatory record, not a lab test of your specific tap. This record - 1 health-based violation on file for St Croix Falls Waterworks - 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.