Garrison Lake Pump District

Water Quality Snapshot: Garrison Lake Pump District

Garrison Lake Pump District is a private-owned community water system that delivers drinking water to 13,467 residents in Dover, Delaware (Kent County) through 5,719 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 12 total violations for this system , of which 8 (67%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 2 monitoring and reporting violations are on file. The most recent violation on record dates to 2002.

The most frequently cited contaminant at this system is Nitrate, recorded in 8 violations (MCL, health-based). This system was sampled under EPA's UCMR5 PFAS monitoring program and no PFAS compounds were detected above the minimum reporting level.

Across Delaware, EPA tracks 460 public water systems serving 1,083,630 people, with 9,105 cumulative violations and 4,582 health-based violations on record. About 75% of systems in the state carry at least one violation, and state-wide the average per system is 19.8 violations. Statewide, 25 of 35 UCMR5-tested systems have reported PFAS detections (71.4%).

Garrison Lake Pump District's 12 violations sit below the Delaware average.

All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.