Groundwater Rule (GWR) violations in New Hampshire
9 active public water systems in New Hampshire had a Groundwater Rule (GWR) violation in the past three years, 9 of them in the latest quarter of EPA's data. What Groundwater Rule (GWR) is and why it matters.
Systems with a Groundwater Rule (GWR) violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Emerald Lake Hillsborough · Hillsborough County |
1,300 | 3 | 2 | |
|
W Valley Ski Area Schwendi Waterville Valley · Grafton County |
400 | 1 | 1 | |
|
Rock Rimmon Cooperative Danville · Rockingham County |
200 | 1 | 1 | |
|
Washington Elementary Sch Washington · Sullivan County |
125 | 3 | 2 | |
|
Westgate Estates Raymond · Rockingham County |
115 | 3 | 1 | |
|
Bobcat Country Grill Plymouth · Grafton County |
100 | 3 | 3 | |
|
Rolling Ridge Bartlett · Carroll County |
58 | 3 | 1 | |
|
Hollis Village Marketplace Hollis · Hillsborough County |
36 | 3 | 1 | |
|
Robertos Northwood · Rockingham County |
30 | 3 | 3 |
About this data
A system is counted once if any of its violations in the past three years involved Groundwater Rule (GWR), including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Groundwater Rule (GWR) 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.