New Hampshire
Rockingham County drinking water quality
554 active public water systems serve 271,624 people in Rockingham County. 400 are compliant, 154 had at least one EPA violation in the past three years, 4 are designated serious violators, and 8 carry a health flag.
Needs attention
Community water systems
199 systems, largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
West Pine Condos Plaistow |
60 | 0 | 0 | |
|
River Run Brentwood Brentwood |
59 | 0 | 0 | |
|
Shadow Lake Mobile Home Park Salem |
58 | 1 | 0 | |
|
Inn at Deerfield Deerfield |
57 | 0 | 0 | |
|
Millville Circle/north Salem |
57 | 1 | 0 | |
|
Bryant Brook Plaistow |
55 | 0 | 0 | |
|
Four Seasons Mobile Home Park Hampton |
55 | 0 | 0 | |
|
Jewett Hill Stratham |
55 | 0 | 0 | |
|
Louisburg Circle Exeter |
55 | 0 | 0 | |
|
The Dox Condos Sandown |
55 | 1 | 0 | |
|
Tower View Northwood |
55 | 0 | 0 | |
|
Willow Bend Derry |
55 | 0 | 0 | |
|
Governors Green Epping |
53 | 0 | 0 | |
|
Kingston Pines Elderly Housing Kingston |
52 | 0 | 0 | |
|
Stonearch Condo Assn/kirkwall Stratham |
52 | 1 | 0 | |
|
Exeter Highlands Exeter |
50 | 0 | 0 | |
|
Glenwood North Hampstead |
50 | 0 | 0 | |
|
Old Coach Village Derry |
50 | 0 | 0 | |
|
Rolling Meadows Condos III Londonderry |
50 | 0 | 0 | |
|
Strawberry Hill Plaistow |
50 | 0 | 0 | |
|
Millville Circle/south Salem |
48 | 0 | 0 | |
|
Evans Trailer Park Epping |
47 | 0 | 0 | |
|
Running Brook Derry |
47 | 0 | 0 | |
|
Aberdeen/west Stratham |
46 | 1 | 0 | |
|
Camelot Court Nottingham |
45 | 1 | 0 | |
|
Coopers Grove Kingston |
45 | 0 | 0 | |
|
Fox Den Retirement Comm Sandown |
43 | 0 | 0 | |
|
Rolling Meadows Condos IV Londonderry |
42 | 0 | 0 | |
|
Pine Valley Estates Kingston |
40 | 2 | 0 | |
|
Reeds Crossing Sandown |
40 | 0 | 0 | |
|
Wade Farm Condos Newmarket |
40 | 0 | 0 | |
|
Pawtuckaway Farms Raymond |
38 | 3 | 0 | |
|
Rainbow Ridge Plaistow |
38 | 0 | 0 | |
|
Southview Condos Londonderry |
38 | 0 | 0 | |
|
Stratham Woods Stratham |
38 | 3 | 0 | |
|
Lamington Hill Stratham |
35 | 5 | 0 | |
|
Camelot III Windham |
33 | 0 | 0 | |
|
Blueberry Knoll Estates Plaistow |
32 | 0 | 0 | |
|
The Meadow at Northwood Northwood |
31 | 0 | 0 | |
|
Beaver Hollow Sandown |
30 | 0 | 0 | |
|
Rutledge Place Plaistow |
30 | 0 | 0 | |
|
Bitim Apartments Londonderry |
28 | 1 | 1 | |
|
Summerwind Place SR Hsng Greenland |
28 | 0 | 0 | |
|
Dearborn Ridge Atkinson |
27 | 0 | 0 | |
|
Pickpocket Woods Exeter |
26 | 2 | 0 | |
|
Barton MHP East Kingston |
25 | 0 | 0 | |
|
Cornerstone Place Deerfield |
25 | 1 | 0 | |
|
McAuley Commons Windham |
25 | 0 | 0 | |
|
Sherburn Woods Deerfield |
25 | 0 | 0 |
Non-community systems (355: schools, campgrounds, workplaces, restaurants)
These systems serve places people visit rather than homes.
Inactive systems (421, no longer operating or reporting)
Kept for the record and excluded from the county totals above. Browse inactive systems.
About this data
Totals cover active systems. Systems serving more than one county are counted in each county. EPA counts the rules a system was in violation of, not the individual violations; one rule can carry several.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The New Hampshire records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet.