DrinkingWaterCheck

What's in DARLINGTON WATERWORKS's water?

DARLINGTON WATERWORKS has at least one health-based violation EPA's ECHO database still lists as unaddressed - the required fix has not been reported complete. 2,235 people get their water from it, across 827 connections.

How this compares nationally

DARLINGTON WATERWORKS has 13 violations on record in total, 5 of thems health-based - ranking it 3,693th of 12,903 systems by violation count, the 71th percentile nationally.

How DARLINGTON WATERWORKS compares within WI

Among the 202 WI systems in this dataset, the average is 3.6 health-based violations - DARLINGTON WATERWORKS's 5 is above 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 DARLINGTON WATERWORKS is from 2025-05-10 (health-based: 2025-05-10). Last reported to EPA: 05/29/2026.

What kind of problem, specifically

DARLINGTON 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:

The most severe category on record is lead & copper, which points toward a lead-class filter if you want to address it directly.

What this data is and is not

DARLINGTON WATERWORKS'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. Water quality can still change between the meter and the faucet - household plumbing sits outside what a record of 13 logged violations can see. The guide to what this data misses covers that gap.