Menu

EWG's Tap Water Database — 2019 UPDATE

Donate

Idaho

  • 733 Utilities

  • Serving: 1,277,000

  • Data available: 2012-2017

  • Contaminants Found: 55

 

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, ID50,204
City of ChubbuckChubbuck, ID14,125
City of Coeur D AleneCoeur D Alene, ID44,426
City of Idaho FallsIdaho Falls, ID59,001
City of JeromeJerome, ID10,890
City of KunaKuna, ID19,700
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, ID27,300
City of Twin FallsTwin Falls, ID46,000
Eagle Water Company IncEagle, ID10,400
Falls Water Company IncIdaho Falls, ID15,700
Garden City Water and Sewer SystemGarden City, ID12,500
Lewiston Orchards Irrigation DistrictLewiston, ID20,000
Meridian Water DepartmentMeridian, ID98,300
Moscow Water DepartmentMoscow, ID24,499
SuezBoise, ID223,154

Utilities that accumulated/accrued the most violation points as of April 2016 to March 2019 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
Eaton Mobile Home CourtOcean Park, ID94108
Castle Mountain Creeks Owners AssociationGarden Valley, ID27571
Filer Water WorksFiler, ID2,50053
Greenhills Estates 3Meridian, ID20052
Salmon, City ofSalmon, ID3,12245
Willowtree Estates Homeowner AssociationNampa, ID2542
Elk City Water and Sewer AssociationElk City, ID32041
Horseshu Vue Ranch SubdivisionHorseshoe Bend, ID5141
Twenty Mile Creek Water AssociationNaples, ID28540
Elk River, City ofElk River, ID16540
Panorama Hills Water CompanyIdaho Falls, ID10037
Santiago Southview Terrace ParkAthol, ID16036
Juliaetta, City ofJuliaetta, ID57933
Riverland Terrace Nonprofit Water CorporationBoise, ID9933
Riverbend EstatesAmerican Falls, ID9231
Troy, City ofTroy, ID80031
Indian VillageNampa, ID18031
View Water Development CompanyBurley, ID11229
Yellow Pine Water Users Inc.Boise, ID7228
Cassandra Hills Owners AssociationSt Maries, ID5227
Mountain Shadows LLCGarden Valley, ID8922
Hope Water SystemHope, ID13022
Golden Eagle RanchKetchum, ID8522
Bee Line Water Association Inc.Bonners Ferry, ID41421
Paradise Estates Water CorporationBoise, ID27319
Bruneau Water and Sewer DistrictBruneau, ID8818
Bliss, City ofBliss, ID32518
J and K Water CorporationIdaho Falls, ID37017
Rim Acres Mutual WaterBoise, ID3115
City of RexburgRexburg, ID27,30015

Large utilities that accumulated/accrued the most violation points as of April 2016 to March 2019 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, ID27,30015
City of Mountain HomeMountain Home, ID14,00013
City of CaldwellCaldwell, ID50,2043
Moscow Water DepartmentMoscow, ID24,4992
City of Twin FallsTwin Falls, ID46,0001

Contaminants found in Idaho above health guidelines

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

Radium, combined (-226 & -228)
4601,109,2544791,135,454

Nitrate
5101,091,5905481,127,461

Uranium
379953,0574331,036,104

Total trihalomethanes (TTHMs)
203926,198208986,503

Chromium (hexavalent)
26830,86628875,365

Haloacetic acids (HAA5)
148814,704148814,704

Arsenic
204777,999204777,999

Nitrate and nitrite
67249,15471250,351

Tetrachloroethylene (perchloroethylene)
6241,7646241,764

Bromoform
778,667778,667

Dibromochloromethane
976,382976,382

Bromodichloromethane
1275,8511275,851

Dibromoacetic acid
470,676470,676

Vanadium
146,00026830,866

Trichloroethylene
316,5286294,829

Chloroform
139,3311671,577

Ethylene dibromide
14,2254227,737

Carbon tetrachloride
13,68313,683

Dichloroacetic acid
72,62272,622

Manganese
12,3326234,836

Trichloroacetic acid
62,32262,322

Cadmium
18401840

Thallium
25922592

Di(2-ethylhexyl) phthalate
256014120,436

Benzo[a]pyrene
13901390

Contaminants found in Idaho above legal limits

Contaminant# of UtilitiesPeople Served

Arsenic
93,954

Uranium
1273

Haloacetic acids (HAA5)
1165

Nitrate
194

Fluoride
178