DrinkingWaterCheck

What's in HARRINGTON WATER DEPARTMENT's water?

HARRINGTON WATER DEPARTMENT has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. 3,562 people get their water from it, across 1,251 connections.

Ranked against every other system in this dataset

Out of 12,903 systems in this dataset, HARRINGTON WATER DEPARTMENT ranks 6,343th by violation burden (51th percentile) - 15 violations total, 2 health-baseds.

How HARRINGTON WATER DEPARTMENT compares within DE

DE's 25 covered systems average 2.2 health-based violations each; HARRINGTON WATER DEPARTMENT carries 2, not more than typical for the state. See the lead and copper guide for why lead counts differently.

Most recent violation on record

The last violation EPA has on record for HARRINGTON WATER DEPARTMENT is from 2021-01-10 (health-based: 1997-01-10). Last reported to EPA: 04/30/2026.

What kind of problem, specifically

HARRINGTON WATER DEPARTMENT'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 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

HARRINGTON WATER DEPARTMENT'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. Between the utility's meter and HARRINGTON WATER DEPARTMENT's customers' taps is household plumbing, invisible to a system-level record ranked 6,343th of 12,903 by violation count. The guide to what this data misses covers that gap.