Is GUERNSEY CO. WATER DEPT.'s water safe to drink?
GUERNSEY CO. WATER DEPT. had a health-based violation within the last five years. The required corrective action was reported, but it happened recently enough to matter. Population served: 8,891, over 3,660 connections.
GUERNSEY CO. WATER DEPT.'s record against the rest of the country
GUERNSEY CO. WATER DEPT. has 10 violations on record in total, 4 of thems health-based - ranking it 4,405th of 12,903 systems by violation count, the 66th percentile nationally.
How GUERNSEY CO. WATER DEPT. compares within OH
OH's 394 covered systems average 5.5 health-based violations each; GUERNSEY CO. WATER DEPT. carries 4, not more than typical for the state. The filter guide explains what a violation like this actually calls for.
Most recent violation on record
The last violation EPA has on record for GUERNSEY CO. WATER DEPT. is from 2025-06-11 (health-based: 2024-01-04). Last reported to EPA: 05/15/2026.
What kind of problem, specifically
GUERNSEY CO. WATER DEPT.'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:
- Disinfection byproducts - flagged from: TTHM; Total Haloacetic Acids (HAA5)
The most severe category on record is disinfection byproducts, which points toward a carbon-class filter if you want to address it directly.
What this data is and is not
Everything on this page is GUERNSEY CO. WATER DEPT.'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 GUERNSEY CO. WATER DEPT.'s customers' taps is household plumbing, invisible to a system-level record ranked 4,405th of 12,903 by violation count. The guide to what this data misses covers that gap.