County · New Hampshire
Hillsborough County, New Hampshire: drinking water records
This overview covers 34 ZIP codes and 69 community water systems in Hillsborough County. It also stands in for 12 ZIP codes whose utility has too little EPA data for a page of its own.
System population figures are summed from EPA registry records and can overlap where wholesalers and retail systems serve the same people. They are not a Census county-population estimate.
Water systems with the most complete records
| Water system | People served | PFAS survey results | PFAS found | Health-based violations | Lead, 9 in 10 homes at or below |
|---|---|---|---|---|---|
| Manchester Water Works NH1471010 | 123,500 | 120 | 1 | 0 | 0 ppb |
| Pennichuck Water Works NH1621010 | 88,853 | 120 | 0 | 0 | 0 ppb |
| Merrimack Village Dist NH1531010 | 25,500 | 180 | 0 | 0 | 0 ppb |
| Hudson Water Dept NH1201010 | 16,700 | 60 | 3 | 0 | 0 ppb |
| Milford Water Utilities Dept NH1561010 | 9,500 | 180 | 0 | 0 | 2 ppb |
| Litchfield NH1371010 | 6,920 | 180 | 4 | 0 | 0 ppb |
| Peterborough Water Works NH1871010 | 4,500 | 180 | 0 | 0 | 9 ppb |
| Goffstown Village Pct NH0911010 | 3,250 | 0 | 0 | 3 | 86 ppb |
| Greenville Est Village Dist NH0993020 | 472 | 0 | 0 | 1 | 18 ppb |
| Crotched Mountain School NH0972010 | 300 | 0 | 0 | 6 | 66 ppb |
| Wediko School NH2552010 | 280 | 0 | 0 | 5 | 46 ppb |
| Mt Laurel Estates NH0912050 | 115 | 0 | 0 | 1 | 26 ppb |
| Little Pond Estates NH0192080 | 3,000 | 120 | 1 | 0 | not reported |
| Hillsborough Water Works NH1141010 | 2,000 | 0 | 0 | 0 | 33 ppb |
| Wilton Water Works NH2521010 | 1,790 | 0 | 0 | 0 | 63 ppb |
| Emerald Lake NH1141020 | 1,300 | 0 | 0 | 5 | not reported |
| Grasmere Water Pct/Main NH0911020 | 1,125 | 0 | 0 | 1 | not reported |
| Greenville Water Dept NH0991010 | 1,100 | 0 | 0 | 0 | 110 ppb |
| South Weare Water NH2452030 | 200 | 0 | 0 | 6 | not reported |
| Highland Estates Apartments NH1852060 | 120 | 0 | 0 | 0 | 18 ppb |
| Landmark Estates Condos NH1852150 | 105 | 0 | 0 | 6 | not reported |
| Long Pond Woods NH1852140 | 102 | 0 | 0 | 4 | not reported |
| Silver Lake Estates NH1172030 | 100 | 0 | 0 | 2 | not reported |
| Farley Rd Estates NH1622010 | 85 | 60 | 0 | 0 | not reported |
| Daniels Lake NH2452010 | 78 | 0 | 0 | 0 | 30 ppb |
ZIP reports in Hillsborough County
No ZIP report in this county is published yet.
These ZIP codes are covered by this overview because their utility has too little EPA data for a separate page: 03031, 03033, 03043, 03049, 03070, 03071, 03076, 03082, 03084, 03440, 03442, 03449.
Sources and scope
EPA UCMR 5 occurrence data, samples collected 2023-01-03 – 2026-06-17, final release, August 2026 (file dated Aug 28, 2026); EPA SDWIS via ECHO, 2026Q2 extract (file dated Jul 9, 2026); EPA service-area boundaries v3.0; Census 2020 ZCTAs. Page generated 2026-09-03.
Counts cover the systems that report this county to EPA. A water system may cross county lines. "Found" means at least one result at or above the laboratory reporting level; it is not a compliance finding.