What's in HILLDALE WATER DISTRICT's water?
HILLDALE WATER DISTRICT has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. 5,578 people get their water from it, across 2,113 connections.
HILLDALE WATER DISTRICT's record against the rest of the country
HILLDALE WATER DISTRICT has 149 violations on record in total, 3 of thems health-based - ranking it 4,670th of 12,903 systems by violation count, the 64th percentile nationally.
How HILLDALE WATER DISTRICT compares within MS
Among the 349 MS systems in this dataset, the average is 3.2 health-based violations - HILLDALE WATER DISTRICT's 3 is at or below that. See the lead and copper guide for why lead counts differently.
Most recent violation on record
The last violation EPA has on record for HILLDALE WATER DISTRICT is from 2014-01-10 (health-based: 2014-01-10). Last reported to EPA: 05/18/2026.
What kind of problem, specifically
HILLDALE WATER DISTRICT'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
Everything on this page is HILLDALE WATER DISTRICT'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 HILLDALE WATER DISTRICT's customers' taps is household plumbing, invisible to a system-level record ranked 4,670th of 12,903 by violation count. The guide to what this data misses covers that gap.