COUNTY WATER-SYSTEM LEDGER
Coos, New Hampshire
EPA’s September 2026 export lists 4 active community water systems serving Coos, New Hampshire, 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 Coos, New Hampshire
EPA associates 4 covered systems with Coos, New Hampshire; their reported population-served values total 17,355 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 |
|---|---|---|---|
| Berlin Water WorksNH0231010 | 9,575 | Surface water | No current violation flagged |
| Groveton Water SysNH1781010 | 2,650 | Ground water | No current violation flagged |
| Gorham Water And Sewer DeptNH0921010 | 2,630 | Surface water | No current violation flagged |
| Lancaster Water DeptNH1291010 | 2,500 | Surface water | No current violation flagged |
02 / SOURCE MIX
Primary water sources for Coos, New Hampshire
EPA classifies 4 systems serving Coos, New Hampshire across 2 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.