New Hampshire PFAS compliance
PFAS contamination data for 500 water systems in New Hampshire, serving 1,050,168 people.
Total systems
500
Exceed MCL
15
At risk
0
Compliant
31
Settlement eligible
20
New Hampshire PFAS regulatory overview
State standards
State standardsNew Hampshire has its own PFAS standards
PFOA MCL: 12 ppt(EPA: 4 ppt)
PFOS MCL: 15 ppt(EPA: 4 ppt)
NH MCLs: PFOA 12 ppt, PFOS 15 ppt, PFHxS 18 ppt, PFNA 11 ppt. Among strictest state standards.
Regulatory agency
New Hampshire has some of the strictest PFAS standards in the country. Major contamination sites around Pease Air Force Base and Saint-Gobain facility.
Get weekly PFAS compliance alerts for New Hampshire
Water systems
| System | City | Population | PFOA (ppt) | PFOS (ppt) | Status |
|---|---|---|---|---|---|
| MANCHESTER WATER WORKS NH1471010 | MANCHESTER | 123,500 | 5 | — | Exceeds |
| PENNICHUCK WATER WORKS NH1621010 | NASHUA | 89,073 | — | — | Compliant |
| CONCORD WATER DEPT NH0501010 | CONCORD | 44,215 | — | — | Compliant |
| PORTSMOUTH WATER WORKS NH1951010 | PORTSMOUTH | 33,000 | 7 | 5 | Exceeds |
| KEENE WATER DEPT NH1241010 | KEENE | 30,000 | — | — | Compliant |
| DOVER WATER DEPT NH0651010 | DOVER | 29,000 | — | — | Compliant |
| MERRIMACK VILLAGE DIST NH1531010 | MERRIMACK | 25,500 | — | — | Compliant |
| ROCHESTER WATER DEPT NH2001010 | ROCHESTER | 25,000 | — | — | Compliant |
| LACONIA WATER WORKS NH1281010 | LAKEPORT | 21,000 | — | — | Compliant |
| SALEM WATER DEPT NH2051010 | SALEM | 21,000 | 8.5 | — | Exceeds |
| DERRY WATER DEPT NH0611010 | DERRY | 17,210 | 4.6 | — | Exceeds |
| HUDSON WATER DEPT NH1201010 | HUDSON | 16,700 | 9 | — | Exceeds |
| UNH/DURHAM WATER SYS NH0691010 | DURHAM | 16,000 | — | — | Compliant |
| SEABROOK WATER DEPT NH2111010 | SEABROOK | 14,000 | 8 | 5.3 | Exceeds |
| EXETER WATER DEPT NH0801010 | EXETER | 12,236 | 6 | 4 | Exceeds |
| SOMERSWORTH WATER WORKS NH2151010 | SOMERSWORTH | 12,000 | — | — | Compliant |
| LEBANON WATER DEPT NH1321010 | LEBANON | 10,050 | — | — | Compliant |
| PEASE TRADE PORT NH1951020 | PORTSMOUTH | 9,900 | — | — | Compliant |
| BERLIN WATER WORKS NH0231010 | BERLIN | 9,575 | — | — | Compliant |
| MILFORD WATER UTILITIES DEPT NH1561010 | MILFORD | 9,500 | — | — | Compliant |
| CLAREMONT WATER DEPT NH0461010 | CLAREMONT | 9,000 | — | — | Compliant |
| HANOVER WATER DEPT NH1071010 | HANOVER | 8,500 | — | — | Compliant |
| FRANKLIN WATER WORKS NH0851010 | FRANKLIN | 7,000 | — | — | Compliant |
| LITCHFIELD NH1371010 | NASHUA | 7,000 | 8.1 | — | Exceeds |
| HAMPSTEAD AREA WATER NH1031010 | ATKINSON | 6,953 | 7.2 | 7.5 | Exceeds |
| PLYMOUTH VLG WATER AND SEWER NH1941010 | PLYMOUTH | 6,700 | — | — | Compliant |
| LITTLETON WATER AND LIGHT NH1381010 | LITTLETON | 6,500 | — | — | Compliant |
| WOLFEBORO WATER AND SEWER NH2561010 | WOLFEBORO | 6,000 | — | — | Compliant |
| NORTH CONWAY WATER PCT NH0511030 | NORTH CONWAY | 5,500 | — | — | Compliant |
| LONDONDERRY NH1391010 | NASHUA | 5,380 | 6.4 | — | Exceeds |
| PEMBROKE WATER WORKS NH1861010 | PEMBROKE | 5,200 | — | 6.5 | Exceeds |
| NEWMARKET WATER WORKS NH1731010 | NEWMARKET | 5,030 | — | — | Compliant |
| NEWPORT WATER WORKS NH1741010 | NEWPORT | 5,000 | — | — | Compliant |
| CENTRAL HOOKSETT WATER PCT NH1181010 | HOOKSETT | 4,650 | 4.9 | — | Exceeds |
| PETERBOROUGH WATER WORKS NH1871010 | PETERBOROUGH | 4,500 | — | — | Compliant |
| RYE WATER DIST NH2041010 | RYE | 4,300 | 8.3 | 7.8 | Exceeds |
| LOWER BARTLETT WATER PCT NH0161020 | INTERVALE | 3,800 | — | — | Compliant |
| PENACOOK BOSCAWEN WATER PCT NH0251010 | NASHUA | 3,800 | — | — | Compliant |
| JAFFREY WATER WORKS NH1221010 | JAFFREY | 3,800 | 6.6 | 5.6 | Exceeds |
| BRISTOL WATER WORKS NH0301010 | BRISTOL | 3,575 | — | — | Compliant |
| VILLAGE DIST OF EASTMAN NH0951010 | GRANTHAM | 3,400 | — | — | Compliant |
| RAYMOND WATER DEPT NH1971010 | RAYMOND | 3,300 | — | — | Compliant |
| LITTLE POND ESTATES NH0192080 | NASHUA | 3,000 | 5.4 | — | Exceeds |
| NEW LONDON SPRINGFIELD WATER NH1721010 | NEW LONDON | 2,750 | — | — | Compliant |
| VILLAGE DISTRICT OF EIDELWEISS NH1461010 | MADISON | 1,200 | — | — | Compliant |
| RIVER RUN CONDOS NH0162170 | NORTH CONWAY | 750 | — | — | Compliant |