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EWG's Tap Water Database — 2019 UPDATE

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Chromium (total)

Status: National drinking water standard exists

 

Chromium is a naturally occurring metal, but industrial uses can elevate its levels in water. One form, hexavalent chromium, causes cancer. Total chromium is not a good indicator of the amount of hexavalent chromium in drinking water.

2015-2017:

FOUND

50

states detected

10,189

utilities detected

143 million

people served

State and national drinking water standards and health guidelines

EPA Maximum Contaminant
Level (MCL) 100 ppb

The legal limit for total chromium, established in 1991, was based on a 1958 toxicity study in laboratory animals, and applies to both the less-toxic trivalent chromium and the more-toxic hexavalent chromium forms of this compound. This limit does not protect against the risk of cancer from ingestion of hexavalent chromium.

ppb = parts per billion

States reporting chromium (total) in drinking water

UTILITIES WITH CONTAMINATION
State UtilitiesPeople Served
Texas1,45916,740,496
New York45615,831,561
California63715,609,433
Florida70111,348,740
Illinois2247,343,227
Pennsylvania4076,388,551
New Jersey1575,741,387
Arizona2305,057,866
Maryland844,169,103
Colorado2333,603,171
Missouri9803,416,460
Washington3513,292,651
Michigan822,890,443
Wisconsin2802,565,226
Nevada682,472,535
Kansas5182,358,518
Massachusetts982,301,878
Indiana1362,156,854
Mississippi6662,116,185
Utah571,764,215
Alabama1121,635,907
Oklahoma1311,557,985
Tennessee581,546,619
Kentucky1281,517,863
Ohio1101,436,218
Minnesota451,424,073
North Carolina901,406,758
Virginia1241,379,537
Hawaii491,320,763
South Carolina721,220,857
Georgia511,220,111
New Mexico911,212,987
Connecticut631,164,979
Louisiana821,095,383
Iowa831,000,747
Oregon48990,933
Delaware81744,532
Arkansas99715,888
Nebraska17690,893
West Virginia91571,548
Idaho53563,996
Maine241349,942
Alaska13268,054
South Dakota37250,497
Rhode Island37249,971
New Hampshire256247,991
North Dakota44137,380
Wyoming32127,892
Montana1882,167
Vermont818,009
District Of Columbia115,690
MORE
LESS

Filtering technologies that reduce chromium (total)

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Reverse Osmosis

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Ion Exchange

Utilities with the highest amounts of chromium (total), 2015-2017

ALL UTILITIES
LARGE UTILITIES
UtilityLocationTestsAverage levelPeople served
Water Unlimited, Incorporated*Newcastle, WY1 of 170.0 ppb80
Panorama Place Water AssociationGrandview, WA1 of 169.0 ppb220
RichlandRichland, GA1 of 163.8 ppb1,446
Hide-a-way Mobile Village and Rv ParkCheyenne, WY1 of 160.0 ppb130
Truxton Canyon Water CompanyKingman, AZ1 of 158.0 ppb2,139
Water Utility of Greater Tonopah GardenPhoenix, AZ1 of 158.0 ppb17
Desert Lake Community Services DistrictBoron, CA1 of 152.0 ppb792
Bed Rock Mobile Home ParkUlysses, KS3 of 351.3 ppb150
Jeffrey City Water & Sewer DistrictJeffrey City, WY1 of 250.0 ppb40
Montclair CondominiumsPoughkeepsie, NY1 of 150.0 ppb1,100
Yellowtail Dam Mk Upper SystemYellowtail, MT1 of 247.0 ppb40
Redd Fox Park Homeowners AssocRiverton, WY2 of 445.0 ppb50
Lander, City Of*Lander, WY2 of 445.0 ppb6,800
Norman*Norman, OK51 of 5244.3 ppb72,928
Kingman Municipal WaterKingman, AZ30 of 3042.2 ppb45,000
Adaman Mutual Water CompanyLitchfield Park, AZ1 of 142.0 ppb700
Joshua Valley Water CompanyMeadview, AZ5 of 540.2 ppb957
Bedford Water & Sewer DistrictBedford, WY1 of 240.0 ppb950
Dunnigan Water WorksPaso Robles, CA4 of 439.0 ppb400
Sunset West Community LLCSeaside, CA1 of 139.0 ppb350
Sooner Utilities-valley BrookEdmond, OK1 of 138.5 ppb1,008
Santa Ynez Rancho Estates Mutual Water CompanySanta Ynez, CA3 of 336.7 ppb294
Mccloskey Road LLCHollister, CA12 of 1236.7 ppb25
Hills Ranch Mutual Water CompanyAlbion, CA1 of 336.7 ppb60
Jubilee Water Company Inc.Brimfield, IL1 of 136.0 ppb88
Yucca Water AssociationYucca, AZ1 of 135.0 ppb250
Paradise Trails Pioneer Valley WsLake Havasu City, AZ1 of 134.0 ppb61
Los Madrones Mutual Water CompanySan Juan Bautista, CA1 of 134.0 ppb40
Park Place Mobile Home ParkStamford, NY1 of 134.0 ppb72
Rosie's Den CafeWhite Hills, AZ1 of 133.0 ppb29
Tularcitos Mutual Water CompanyCarmel Valley, CA1 of 133.0 ppb85
Aptos Ridge Mutual Water CompanyWatsonville, CA2 of 231.0 ppb50
Grand Lake Public Works AuthorityOchelata, OK1 of 131.0 ppb2,800
City of Phoenix*Phoenix, AZ15 of 1830.2 ppb1,579,000
City of Los BanosLos Banos, CA46 of 4630.0 ppb37,168
Mission Hills Community Services DistrictLompoc, CA1 of 130.0 ppb3,300
White Hills Water Company Unit 1Mesa, AZ1 of 130.0 ppb46
Buehner Water System - Weber ComplexPatterson, CA1 of 129.0 ppb100
Why Domestic Water Improvement DistrictAjo, AZ1 of 128.0 ppb400
City of Surprise - Mountain Vista*Surprise, AZ48 of 4827.9 ppb31,649
City of KermanKerman, CA6 of 627.2 ppb14,068
Volta Community SDLos Banos, CA1 of 127.0 ppb150
City of Buckeye Sonora - SundanceBuckeye, AZ2 of 226.9 ppb15,783
Northside Mobile Home ParkCastle Hayne, NC1 of 126.0 ppb180
U.S. Air Force Luke Air Force BaseGlendale, AZ1 of 126.0 ppb10,708
Paradise Rd. Ws #21Salinas, CA1 of 126.0 ppb48
Tierra Vista Mutual Water CompanySalinas, CA1 of 126.0 ppb57
Carefree Water CompanyCarefree, AZ1 of 126.0 ppb3,420
Lakeview Improvement Assoication #1Fresno, CA2 of 426.0 ppb160
Piedmont Municpal Authority*Piedmont, OK3 of 325.7 ppb7,542

* This water utility supplies finished drinking water to at least one other water utility. The purchasing utility is not required to test for or report Chromium (total), but it likely has the contaminant in its water supply.

UtilityLocationTestsAverage levelPeople served
Norman*Norman, OK51 of 5244.3 ppb72,928
Kingman Municipal WaterKingman, AZ30 of 3042.2 ppb45,000
City of Phoenix*Phoenix, AZ15 of 1830.2 ppb1,579,000
City of Los BanosLos Banos, CA46 of 4630.0 ppb37,168
City of Surprise - Mountain Vista*Surprise, AZ48 of 4827.9 ppb31,649
City of KermanKerman, CA6 of 627.2 ppb14,068
City of Buckeye Sonora - SundanceBuckeye, AZ2 of 226.9 ppb15,783
U.S. Air Force Luke Air Force BaseGlendale, AZ1 of 126.0 ppb10,708
Epcor Water - Paradise Valley/ScottsdaleYoungtown, AZ1 of 125.0 ppb11,600
City of Davis*Davis, CA77 of 9422.6 ppb67,298
MooreMoore, OK17 of 2621.4 ppb41,138
City of PattersonPatterson, CA7 of 721.0 ppb20,560
City of WoodlandWoodland, CA4 of 420.5 ppb56,464
SBNDO County Service Area 70JVictorville, CA62 of 6318.8 ppb10,111
Coachella Water AuthorityCoachella, CA6 of 618.0 ppb41,904
Rosamond CSDRosamond, CA4 of 415.0 ppb16,618
Goodyear Water Department*Goodyear, AZ15 of 1514.7 ppb50,001
City of ChubbuckChubbuck, ID1 of 113.0 ppb14,125
Los Angeles County WW District 40 Reg 38 Lake Los AngelesAlhambra, CA2 of 211.7 ppb13,600
Arizona Water Company - Pinal Valley*Phoenix, AZ8 of 910.8 ppb88,019
UC - DavisDavis, CA12 of 1610.5 ppb40,185
Epcor Water - Sun CityYoungtown, AZ7 of 810.1 ppb38,016
USMC - 29 Palms29 Palms, CA17 of 2110.0 ppb28,760
York Water Company*York, PA1 of 49.50 ppb159,623
City of New BernNew Bern, NC3 of 79.43 ppb35,052
Pima UtilitiesSun Lakes, AZ15 of 159.28 ppb20,000
City of El MirageEl Mirage, AZ20 of 219.23 ppb36,905
City of Edmond - Arcadia Lake*Arcadia, OK88 of 909.17 ppb77,616
City of Kingsville*Kingsville, TX20 of 229.03 ppb32,736
Mission Springs WDDesert Hot Springs, CA6 of 109.00 ppb34,626
Rio Linda/Alverta Community Water DistrictRio Linda, CA18 of 228.96 ppb13,386
City of GlendalePhoenix, AZ22 of 288.71 ppb234,766
City of ChandlerChandler, AZ26 of 318.58 ppb247,328
Arizona Water Company - Apache JunctionPhoenix, AZ2 of 28.50 ppb57,647
Town of GilbertGilbert, AZ13 of 148.37 ppb247,600
West Jordan City Water SystemTaylorsville, UT4 of 78.23 ppb113,699
City of WatsonvilleWatsonville, CA40 of 488.18 ppb65,739
Metropolitan Utilities District*Omaha, NE1 of 18.15 ppb600,000
City of Beaumont Water Utility Department*Beaumont, TX1 of 57.84 ppb118,129
Oklahoma UniversityNorman, OK6 of 67.83 ppb34,000
JacksonJackson, MO2 of 27.39 ppb14,386
Sunnyslope County Water DistrictHollister, CA3 of 57.20 ppb19,189
City of AvondaleAvondale, AZ3 of 56.80 ppb83,001
Troy*Troy, MO4 of 46.67 ppb10,500
Prescott Valley WD Upper*Prescott Valley, AZ28 of 286.67 ppb49,003
O'FallonOfallon, MO5 of 56.62 ppb27,000
City of Prescott*Prescott, AZ28 of 286.54 ppb43,217
City of Mesa*Mesa, AZ30 of 356.42 ppb466,000
Coachella Valley Water District: Cove Community*Palm Desert, CA89 of 1526.41 ppb198,544
Tinker AFB Bio-env Eng*Tinker Afb, OK13 of 176.23 ppb24,645

* This water utility supplies finished drinking water to at least one other water utility. The purchasing utility is not required to test for or report Chromium (total), but it likely has the contaminant in its water supply.