OLD LINE WATER SYSTEM: EPA violation history, explained
OLD LINE WATER SYSTEM has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. 5,145 people get their water from it, across 1,715 connections.
OLD LINE WATER SYSTEM's record against the rest of the country
Out of 12,903 systems in this dataset, OLD LINE WATER SYSTEM ranks 9,143th by violation burden (29th percentile) - 2 violations total, 1 health-based.
Against the AL average
Among the 364 AL systems in this dataset, the average is 2.1 health-based violations - OLD LINE WATER SYSTEM's 1 is at or below that. The filter guide explains what a violation like this actually calls for.
Most recent violation on record
OLD LINE WATER SYSTEM's most recent violation on record is dated 2025-05-10, with the most recent health-based one dated 2008-01-04. Last reported to EPA: 05/18/2026.
The concern categories on record
OLD LINE 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:
- Disinfection byproducts - flagged from: TTHM
The most severe category on record is disinfection byproducts, which points toward a carbon-class filter if you want to address it directly.
What OLD LINE WATER SYSTEM's record does not cover
OLD LINE 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. Water quality can still change between the meter and the faucet - household plumbing sits outside what a record of 2 logged violations can see. The guide to what this data misses covers that gap.