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EWG's Tap Water Database

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Idaho

  • 735 Utilities

  • Serving: 1,250,000

  • Data available: 2010-2015

  • Contaminants Found: 56

 

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

LARGE UTILITIES
ALL UTILITIES WITH VIOLATIONS
LARGE UTILITIES WITH VIOLATIONS

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

Large utilities in Idaho

UtilityLocationPeople
Served
Burley Water DepartmentBurley, ID10,345
City of AmmonAmmon, ID14,019
City of BlackfootBlackfoot, ID11,584
City of CaldwellCaldwell, ID46,237
City of ChubbuckChubbuck, ID14,125
City of Coeur D AleneCoeur D Alene, ID44,426
City of Idaho FallsIdaho Falls, ID57,000
City of JeromeJerome, ID10,890
City of KunaKuna, ID16,000
City of LewistonLewiston, ID14,500
City of Mountain HomeMountain Home, ID14,000
City of NampaNampa, ID81,557
City of PocatelloPocatello, ID54,877
City of Post FallsPost Falls, ID15,597
City of RexburgRexburg, ID27,663
City of Twin FallsTwin Falls, ID46,000
Eagle Water Company IncEagle, ID10,400
Falls Water Company IncIdaho Falls, ID15,510
Garden City Water and Sewer SystemGarden City, ID12,500
Lewiston Orchards Irrigation DistrictLewiston, ID20,000
Meridian Water DepartmentMeridian, ID92,000
Moscow Water DepartmentMoscow, ID24,499
SuezBoise, ID214,237

Utilities that accumulated/accrued the most violation points as of October 2014 to September 2017 in Idaho

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
Clearwater Water DistrictStites, ID106323
Arundel By The River A Mobile Home CommunityCoeur D Alene, ID160250
Mission Creek Water AssociationBonners Ferry, ID26681
Greenhills Estates 3Meridian, ID20070
Idaho City Water DepartmentIdaho City, ID47840
Filer Water WorksFiler, ID2,50036
Mountain Home Air Force BaseMountain Home Afb, ID6,50030
Castle Mountain Creeks Owners AssociationGarden Valley, ID27528
Brian Sub Water Users AssociationBoise, ID14023
Eaton Mobile Home CourtLewiston, ID9422
Ferdinand, City ofFerdinand, ID14521
Wilderness Ranch Owners Association Inc.Boise, ID52519
Rivervine SubdivisionCaldwell, ID2518
Mountain View Water and Road AssociationGarden Valley, ID30517
Caldwell Housing AuthorityCaldwell, ID1,10015
Harpster Community DistrictHarpster, ID2415
Horseshu Vue Ranch SubdivisionHorseshoe Bend, ID5113
Riverland Terrace Nonprofit Water CorporationMeridian, ID9913
City Of Grand ViewGrand View, ID35212
City of RexburgRexburg, ID27,66311
Wayside EstatesHeyburn, ID10011
Vanal Heights Well AssociationCaldwell, ID4811
Sunset Mobile Home ParkTwin Falls, ID4011
Shady Rest Rv Park and CampgroundIdaho Falls, ID16710
Whitney Nashville Water WorksPreston, ID40310
Bancroft, City ofBancroft, ID35010
Greenhorn SubdivisionKetchum, ID7510
Elk River, City ofElk River, ID16510
Rogerson Water DistrictRogerson, ID7510
J and K Water CorporationIdaho Falls, ID37010

Large utilities that accumulated/accrued the most violation points as of October 2014 to September 2017 in Idaho

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
City of RexburgRexburg, ID27,66311
City of Mountain HomeMountain Home, ID14,0008
Meridian Water DepartmentMeridian, ID92,0007
SuezBoise, ID214,2374
City of CaldwellCaldwell, ID46,2372
Eagle Water Company IncEagle, ID10,4002
City of PocatelloPocatello, ID54,8772
City of KunaKuna, ID16,0002
Burley Water DepartmentBurley, ID10,3451
City of Twin FallsTwin Falls, ID46,0001
Garden City Water and Sewer SystemGarden City, ID12,5001
City of Idaho FallsIdaho Falls, ID57,0001

Contaminants found in Idaho above health guidelines

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

Radium-228
261991,9082691,000,001

Uranium
281942,0183161,002,176

Total trihalomethanes (TTHMs)
131815,383135871,645

Chromium (hexavalent)
26806,23028850,729

Radium-226
157468,474204616,470

Arsenic
56423,97656423,976

Tetrachloroethylene (perchloroethylene)
5229,8615229,861

Manganese
4217,1126225,919

Vanadium
146,00026806,230

Nitrate
3922,0105051,036,909

Dibromochloromethane
115,510218,672

Bromodichloromethane
115,510115,510

Aluminum
114,500114,500

Trichloroethylene
16,5004221,280

Ethylene dibromide
14,22524,313

Di(2-ethylhexyl) phthalate
11,30065,847

Cadmium
18211821

Nitrate and nitrite
1551480,982

1,2-Dichloroethane
140140

Contaminants found in Idaho above legal limits

Contaminant# of UtilitiesPeople Served

Haloacetic acids (HAA5)
52,074

Arsenic
61,345

Uranium
1200

Nitrate
194