COUNTY WATER-SYSTEM LEDGER
Rockingham, New Hampshire
EPA’s September 2026 export lists 12 active community water systems serving Rockingham, New Hampshire, with 1 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 Rockingham, New Hampshire
EPA associates 12 covered systems with Rockingham, New Hampshire; their reported population-served values total 167,544 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 |
|---|---|---|---|
| Aquarion Water/NhNH1051010 | 34,000 | Ground water | No current violation flagged |
| Portsmouth Water WorksNH1951010 | 33,000 | Surface water | No current violation flagged |
| Salem Water DeptNH2051010 | 21,000 | Surface water | No current violation flagged |
| Derry Water DeptNH0611010 | 17,370 | Surface water purchased | No current violation flagged |
| Seabrook Water DeptNH2111010 | 14,000 | Ground water | No current violation flagged |
| Exeter Water DeptNH0801010 | 12,236 | Surface water | Other current violation flag |
| Pease Trade PortNH1951020 | 9,900 | Ground water | No current violation flagged |
| Hampstead Area WaterNH1031010 | 7,153 | Surface water purchased | No current violation flagged |
| LondonderryNH1391010 | 6,255 | Surface water purchased | No current violation flagged |
| Newmarket Water WorksNH1731010 | 5,030 | Ground water | No current violation flagged |
| Rye Water DistNH2041010 | 4,300 | Ground water | No current violation flagged |
| Raymond Water DeptNH1971010 | 3,300 | Ground water | No current violation flagged |
02 / SOURCE MIX
Primary water sources for Rockingham, New Hampshire
EPA classifies 12 systems serving Rockingham, New Hampshire across 3 primary-source categories; Ground water is the largest category with 6 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.