Garrison Lake Pump District, DE Water Quality
What's in Garrison Lake Pump District's water?
Garrison Lake Pump District has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. 17,148 people get their water from it, across 5,719 connections.
Ranked against every other system in this dataset
Garrison Lake Pump District has 7 violations on record in total, 4 of them health-based - ranking it 4,501th of 12,903 systems by violation count, the 65th percentile nationally.
How Garrison Lake Pump District compares within DE
Among the 42 DE systems in this dataset, the average is 2.0 health-based violations - Garrison Lake Pump District's 4 is above that. The clean-record guide covers what a comparison like this can hide.
Most recent violation on record
The last violation EPA has on record for Garrison Lake Pump District is from 2002-01-07 (health-based: 1997-01-07). Last reported to EPA: 04/30/2026.
What kind of problem, specifically
Garrison Lake Pump District'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:
- Nitrate / nitrite - flagged from: Nitrate
The most severe category on record is nitrate / nitrite, which points toward a reverse osmosis-class filter if you want to address it directly.
What this data is and is not
This is what Garrison Lake Pump District reported to its state primacy agency and EPA under the Safe Drinking Water Act - real regulatory record, not a lab test of your specific tap. Between the utility's meter and Garrison Lake Pump District's customers' taps is household plumbing, invisible to a system-level record ranked 4,501th of 12,903 by violation count. The guide to what this data misses covers that gap.