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EWG's Tap Water Database — 2019 UPDATE

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New Hampshire

  • 706 Utilities

  • Serving: 871,000

  • Data available: 2012-2017

  • Contaminants Found: 100

 

EWG's drinking water quality report for New Hampshire shows results of tests conducted by the water utilities in New Hampshire and provided to EWG by the New Hampshire Department of Environmental Services.

LARGE UTILITIES
ALL UTILITIES WITH VIOLATIONS
LARGE UTILITIES WITH VIOLATIONS

Below are utilities in New Hampshire serving over 10,000 people, listed alphabetically.

Large utilities in New Hampshire

UtilityLocationPeople
Served
Aquarion Water - NHHampton, NH23,000
Concord Water DepartmentConcord, NH44,000
Derry Water DepartmentDerry, NH15,145
Dover Water DepartmentDover, NH28,000
Exeter Water DepartmentExeter, NH11,000
Hudson Water DepartmentHudson, NH16,100
Keene Water DepartmentKeene, NH25,000
Laconia Water WorksBelmont, NH15,500
Lebanon Water DepartmentLebanon, NH10,050
Manchester Water WorksManchester, NH133,000
Merrimack Village DistrictMerrimack, NH25,000
Pennichuck Water WorksMerrimack, NH87,682
Portsmouth Water WorksPortsmouth, NH33,000
Rochester Water DepartmentRochester, NH25,000
Salem Water DepartmentSalem, NH18,000
Seabrook Water DepartmentSeabrook, NH14,000
Somersworth Water WorksSomersworth, NH12,000
UNH/Durham Water SysDurham, NH16,000

Utilities that accumulated/accrued the most violation points as of April 2016 to March 2019 in New Hampshire

The Environmental Protection Agency's Enforcement and Compliance History Online (ECHO) database collects compliance and enforcement-related information for drinking water utilities nationwide. ECHO water quality violation scores take into account federal health-based water quality standards, as well as monitoring, reporting and other drinking water quality requirements. Points are accrued based on specific problems at the utility - violations of health-based drinking water standards receive more points than monitoring and reporting violations - and the length of time until the violations were corrected.

UtilityLocationPeople
Served
Violation
Points
Barkland AcresDerry, NH8065
Tyrol Well AIntervale, NH4460
Camelot IIIDerry, NH3057
Profile ApartmentsRochester, NH9048
Northern View ApartmentsConcord, NH5046
Muirfield ClusterStratham, NH6941
Rolling Acres Mobile Home ParkMerrimack, NH10036
Governors GreenLondonderry, NH2535
Johnson CreekDurham, NH5032
Bela Brook WaterBow, NH5031
Wiggin Farm WinterberryMerrimack, NH10830
26 Chandler Ave. CondosPlaistow, NH3327
Abenaki Water/white Rock WaterGilford, NH23826
Brake Hill AcresMoultonborough, NH9826
Whispering BrookIntervale, NH3025
Long Pond WoodsPelham, NH4525
South Weare WaterSuncook, NH20024
BrandywineEpping, NH7221
Darby Field CommonsGales Ferry, NH7020
Epsom Healthcare CenterEpsom, NH22620
Stillings GrantBartlett, NH11120
Chisholm FarmExeter, NH16818
Sugar Hill Manor Mobile Home ParkWeare, NH11017
Tower ViewNorthwood, NH5516
Cheshire County ComplexKeene, NH38016
Colebrook Water WorksColebrook, NH1,20016
White Lake EstatesIntervale, NH25016
Catamount HillAllenstown, NH38316
Ridgewood EstatesAmherst, NH11515
Lancaster Water DepartmentLancaster, NH2,45015

Large utilities that accumulated/accrued the most violation points as of April 2016 to March 2019 in New Hampshire

The Environmental Protection Agency's Enforcement and Compliance History Online (ECHO) database collects compliance and enforcement-related information for drinking water utilities nationwide. ECHO water quality violation scores take into account federal health-based water quality standards, as well as monitoring, reporting and other drinking water quality requirements. Points are accrued based on specific problems at the utility - violations of health-based drinking water standards receive more points than monitoring and reporting violations - and the length of time until the violations were corrected.

UtilityLocationPeople
Served
Violation
Points
Rochester Water DepartmentRochester, NH25,00013
Portsmouth Water WorksPortsmouth, NH33,0005

Contaminants found in New Hampshire above health guidelines

Found above health guidelinesFound
Contaminant# of UtilitiesPeople Served# of UtilitiesPeople Served

Radium, combined (-226 & -228)
547790,840549793,533

Total trihalomethanes (TTHMs)
265780,936267782,270

Bromodichloromethane
233769,578237774,868

Dibromochloromethane
220725,093228743,419

Chloroform
191715,759232763,405

Dichloroacetic acid
105607,035110646,295

Chromium (hexavalent)
39517,43540528,435

Trichloroacetic acid
78434,53384477,099

Nitrate
232434,243281514,820

Arsenic
268182,120268182,120

Chlorate
8152,66043588,085

Uranium
286107,382375267,231

Nitrate and nitrite
5595,64483111,481

Bromoform
6693,125132306,736

Perfluorooctanoic acid (PFOA)
353,955353,955

Manganese
6851,565457759,085

Tetrachloroethylene (perchloroethylene)
934,149934,149

Perfluoroheptanoic acid (PFHPA)
128,000351,108

Perfluorooctane sulfonate (PFOS)
128,000128,000

Benzene
11,68811,688

Beryllium
61,08295,049

Antimony
363952,487

1,4-Dioxane
1600850,723

Radon
11081108

Trichloroethylene
26343,293

Thallium
127127

Contaminants found in New Hampshire above legal limits