County · New Hampshire
Grafton County, New Hampshire: drinking water records
This overview covers 36 ZIP codes and 70 community water systems in Grafton County. It also stands in for 10 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 |
|---|---|---|---|---|---|
| Lebanon Water Dept NH1321010 | 13,600 | 120 | 0 | 1 | 0 ppb |
| Hanover Water Dept NH1071010 | 9,600 | 120 | 0 | 0 | 0 ppb |
| Plymouth Vlg Water and Sewer NH1941010 | 6,700 | 120 | 0 | 0 | 2 ppb |
| Littleton Water and Light NH1381010 | 6,500 | 120 | 0 | 0 | 8 ppb |
| Bristol Water Works NH0301010 | 3,575 | 180 | 0 | 0 | 7 ppb |
| Lincoln Water Works NH1351010 | 3,300 | 0 | 0 | 6 | 7 ppb |
| Bethlehem Village Dist NH0241010 | 1,750 | 0 | 0 | 20 | 21 ppb |
| Waterville Estate Vlg Dist/W NH0341030 | 1,250 | 0 | 0 | 3 | 37 ppb |
| Canaan Water Dept NH0351010 | 684 | 0 | 0 | 1 | 16 ppb |
| South Main Street Water Dist NH2422010 | 200 | 0 | 0 | 1 | 22 ppb |
| Tenney Brook Condos I NH1942020 | 90 | 0 | 0 | 1 | 140 ppb |
| Highland Colony NH1162010 | 88 | 0 | 0 | 1 | 32 ppb |
| Country Village MHP NH0353010 | 66 | 0 | 0 | 3 | 19 ppb |
| Northpointe Water NH2342020 | 48 | 0 | 0 | 9 | 20 ppb |
| Pond View Apartments NH1432010 | 23 | 0 | 0 | 4 | 36 ppb |
| Waterville Valley Water Dist NH2441010 | 3,150 | 0 | 0 | 0 | 69 ppb |
| Woodsville Water and Light NH1101040 | 1,950 | 0 | 0 | 0 | 36 ppb |
| Ashland Water Dept NH0101010 | 1,525 | 0 | 0 | 0 | 31 ppb |
| Enfield Water Dept NH0751010 | 1,345 | 0 | 0 | 7 | not reported |
| Lisbon Water Dept NH1361010 | 1,010 | 0 | 0 | 0 | 21 ppb |
| Mountain Lakes Water District NH1101050 | 787 | 0 | 0 | 0 | 32 ppb |
| Campton Village Pct NH0341010 | 600 | 0 | 0 | 0 | 31 ppb |
| Franconia Village Water NH0841010 | 535 | 0 | 0 | 0 | 18 ppb |
| Mittersill Water Dept NH0841020 | 475 | 0 | 0 | 0 | 19 ppb |
| Ledges at Newfound Lake NH0032010 | 307 | 0 | 0 | 0 | 16 ppb |
ZIP reports in Grafton 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: 03240, 03262, 03282, 03293, 03586, 03750, 03765, 03768, 03779, 03780.
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.