Nitrate violations in New Hampshire
28 active public water systems in New Hampshire had a Nitrate violation in the past three years, 1 of them in the latest quarter of EPA's data. What Nitrate is and why it matters.
Systems with a Nitrate violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
153 Lafayette RD Water System Hampton Falls · Rockingham County |
30 | 1 | 0 | |
|
Rye Water Dist Rye · Rockingham County |
4,300 | 1 | 0 | |
|
Pitco Frialator Bow · Merrimack County |
311 | 1 | 0 | |
|
Wabanaki Campground Freedom · Carroll County |
250 | 2 | 0 | |
|
Brookline Event Center Brookline · Hillsborough County |
240 | 1 | 0 | |
|
Meriden Deli Mart Plainfield · Sullivan County |
200 | 4 | 1 | |
|
Route 10 Mini Mart Swanzey · Cheshire County |
150 | 3 | 1 | |
|
That Dam Pit Stop Littleton · Grafton County |
150 | 2 | 0 | |
|
Centennial Estates Derry · Rockingham County |
140 | 1 | 0 | |
|
Grappone Ford Complex Bow · Merrimack County |
100 | 1 | 0 | |
|
Italian Farmhouse Plymouth · Grafton County |
100 | 3 | 0 | |
|
Meister Hut Conway · Carroll County |
100 | 4 | 0 | |
|
Wentworth Acres Moultonborough · Carroll County |
88 | 1 | 0 | |
|
Town Line Plaza Tilton · Belknap County |
86 | 1 | 0 | |
|
Rubbin Butts Bbq Center Harbor · Belknap County |
72 | 2 | 0 | |
|
Brookdale Wholesale Hollis · Hillsborough County |
63 | 2 | 0 | |
|
Coach and Four Motor Inn Marlborough · Cheshire County |
60 | 3 | 0 | |
|
Willowbrooke Mall Newton · Rockingham County |
60 | 2 | 0 | |
|
Connolly Cabins and Campground Stratford · Coos County |
55 | 4 | 2 | |
|
Stark House Tavern 840 Weare · Hillsborough County |
54 | 3 | 1 | |
|
Blackmount Country Club Haverhill · Grafton County |
50 | 2 | 0 | |
|
Chester General Store Chester · Rockingham County |
50 | 1 | 0 | |
|
Northpointe Water Thornton · Grafton County |
48 | 1 | 0 | |
|
7cs Market and Deli Strafford · Strafford County |
35 | 2 | 0 | |
|
Volkswagen of Rochester Rochester · Strafford County |
35 | 2 | 0 | |
|
Hampshire Coop Nursery Sch Hanover · Grafton County |
32 | 2 | 0 | |
|
Rose Meadow Acres New Boston · Hillsborough County |
31 | 4 | 0 | |
|
Sugar Hill Inn Sugar Hill · Grafton County |
25 | 3 | 0 |
About this data
A system is counted once if any of its violations in the past three years involved Nitrate, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Nitrate alone.
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.