COUNTY WATER-SYSTEM LEDGER
Harford, Maryland
EPA’s September 2026 export lists 5 active community water systems serving Harford, Maryland, with 0 current-violation flags and 0 serious-violator flags among the covered systems.
Source: EPA SDWIS system-search export · Active community systems serving 2,500+ people · Snapshot 13 Sep 2026
01 / SYSTEMS
Water systems serving Harford, Maryland
EPA associates 5 covered systems with Harford, Maryland; their reported population-served values total 164,773 and may overlap.
Ordered by reported population served. Open any record for separate health, monitoring, notice, other, and serious-violator flags.
| Water system | Population served | Primary source | Current export status |
|---|---|---|---|
| Harford County D.P.W.MD0120016 | 104,567 | Surface water | No current violation flagged |
| City Of AberdeenMD0120001 | 18,006 | Surface water purchased | No current violation flagged |
| Chapel Hill - Aberdeen Proving GroundsMD0120002 | 15,000 | Ground water | No current violation flagged |
| City Of Havre De GraceMD0120012 | 14,000 | Surface water | No current violation flagged |
| Maryland American Water CompanyMD0120003 | 13,200 | Surface water | No current violation flagged |
02 / SOURCE MIX
Primary water sources for Harford, Maryland
EPA classifies 5 systems serving Harford, Maryland across 3 primary-source categories; Surface water is the largest category with 3 systems.
It is the sum of each listed system's reported population served, not a census estimate. Service areas can overlap and some systems list multiple cities or counties.