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National Drinking Water Database

Di-n-butylphthalate in New Hampshire

Di-n-butylphthalate is an industrial solvent or additive used in many consumer products such as nail polish, cosmetics, some printing inks, pharmaceutical coatings, cleaning products and insecticides. [read more]

The Most Polluted Communities in New Hampshire

18 water utilities reported detecting Di-n-butylphthalate in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies

Ranked by highest average Di-n-butylphthalate level

RankSystem Population Served Positive test results of total reported tests Average Level
1Sandy Ridge Estates
Ossipee, NH
1251 of 18.8 ppb
(8.8 ppb)
2Windy Hill Cooperative /South
Tilton, NH
731 of 12.3 ppb
(2.3 ppb)
3Pease Trade Port
3,0001 of 11.3 ppb
(1.3 ppb)
4Bow Lake Estates
Strafford, NH
951 of 11.2 ppb
(1.2 ppb)
5Ladd Hill Mobile Home Park
Belmont, NH
801 of 11.2 ppb
(1.2 ppb)
6Psnh /Merrimack Station
1041 of 11 ppb
(1 ppb)
7Howard Manor Condominiums
Plaistow, NH
301 of 10.8 ppb
(0.8 ppb)
8Stonebridge Village
Plaistow, NH
601 of 1< 0.01 ppb
(< .01 to 0.0038 ppb)
9Carroll County Complex
Ossipee, NH
2101 of 1< 0.01 ppb
(< .01 to 0.0038 ppb)
10Barnstead Elementary School
6001 of 1< 0.01 ppb
(< .01 to 0.0028 ppb)

Health Based Limits for Di-n-butylphthalate

Health-Based Screening LevelA benchmark concentration of contaminants in water that may be of potential concern for human health, if exceeded. For noncarcinogens, the HBSL represents the contaminant concentration in drinking water that is not expected to cause any adverse effects over a lifetime of exposure. For carcinogens, the HBSL range represents the contaminant concentration in drinking water that corresponds to an excess estimated lifetime cancer risk of 1 chance in 1 million to 1 chance in 10 thousand. Source: U.S. Geological Survey.700 ppb
EPA Human Health Water Quality CriteriaWater quality criteria set by the US EPA provide guidance for states and tribes authorized to establish water quality standards under the Clean Water Act (CWA) to protect human health. These are non-enforceable standards based upon exposure by both drinking water and the contribution of water contamination to other consumed foods. Source: U.S. Environmental Protection Agency.2000 ppb
Drinking Water Equivalent LevelA lifetime exposure concentration protective of adverse, noncarcinogenic health effects, that assumes all of the exposure to a contaminant is from drinking water. Source: U.S. Environmental Protection Agency.4000 ppb

Violation Summary for Di-n-butylphthalate in New Hampshire

There are no violations reported for this contaminant in New Hampshire