Is CLAY RURAL WATER SYSTEM's water safe to drink?
CLAY RURAL WATER SYSTEM has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. 4,780 people get their water from it, across 1,912 connections.
Ranked against every other system in this dataset
CLAY RURAL WATER SYSTEM has 6 violations on record in total, 1 of them health-based - ranking it 8,591th of 12,903 systems by violation count, the 33th percentile nationally.
Against the SD average
SD's 74 covered systems average 3.0 health-based violations each; CLAY RURAL WATER SYSTEM carries 1, not more than typical for the state. See the lead and copper guide for why lead counts differently.
Most recent violation on record
CLAY RURAL WATER SYSTEM's most recent violation on record is dated 2003-01-09, with the most recent health-based one dated 2002-01-08. Last reported to EPA: 06/17/2026.
The concern categories on record
CLAY RURAL WATER SYSTEM'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 CLAY RURAL WATER SYSTEM's record does not cover
CLAY RURAL WATER SYSTEM'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 - 1 health-based violation on file for CLAY RURAL WATER SYSTEM - 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.