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National Drinking Water Database


Hydrogen sulfide in New Hampshire


Hydrogen sulfide is a constituent of crude petroleum and natural gas; it is also released from decomposing waste in landfills and sewers and from food processing factories, coke ovens, paper mills, tanneries, and petroleum refineries.

The Most Polluted Communities in New Hampshire

241 water utilities reported detecting Hydrogen sulfide in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies

Ranked by highest average Hydrogen sulfide level

RankSystem Population Served Positive test results of total reported tests Average Level
(Range)
1Dublin Consolidated School
NH
1501 of 12340 ppb
(2340 ppb)
2Sanbornville Water Department
Wakefield, NH
1,5001 of 11580 ppb
(1580 ppb)
3Stoneford
Sandown, NH
1881 of 11330 ppb
(1330 ppb)
4River Run Condominiums
Bartlett, NH
6752 of 21075 ppb
(690 to 1460 ppb)
5The Commons of Atkinson
Atkinson, NH
951 of 11020 ppb
(1020 ppb)
6Whispering Brook
Bartlett, NH
301 of 11000 ppb
(1000 ppb)
7Wakefield Engineering
NH
1752 of 2930 ppb
(160 to 1700 ppb)
8Brickyard I Plaza
NH
282 of 2920 ppb
(630 to 1210 ppb)
9Fairfield HO Assoc
Sandown, NH
381 of 1880 ppb
(880 ppb)
10Old Stagecoach Condos
Epping, NH
481 of 1870 ppb
(870 ppb)

Health Based Limits for Hydrogen sulfide

There are no health based standards that EWG is using for this chemical

Violation Summary for Hydrogen sulfide in New Hampshire

There are no violations reported for this contaminant in New Hampshire