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CONTAMINANT

Trichloroacetic acid

FOUND

Exceeding guidelines

STATES DETECTED

44

serves

218 million

utilities detected

17,170

states detected

44

serves

208 million

utilities detected

16,476

Overview

Trichloroacetic acid, one of the group of five haloacetic acids regulated by federal standards, is formed when chlorine or other disinfectants are used to treat drinking water. Haloacetic acids and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.1 ppb

The EWG Health Guideline of 0.1 ppb for trichloroacetic acid was defined by the California Office of Environmental Health Hazard Assessment's public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer and harm to reproduction and child development.

ppb = parts per billion

National Standard Exists

Health Concerns:

  • Cancer

  • Harm to reproduction and child development

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Trichloroacetic acid from your water?

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Trichloroacetic acid around the Country

UTILITIES REPORTING ABOVE HEALTH GUIDELINES UTILITIES WITH CONTAMINATION
State Utilities People Served Utilities People Served
California93429,526,77998731,704,177
Texas1,81122,738,3551,95726,236,543
New York90116,849,82292617,248,279
Illinois1,27211,246,7281,29011,383,796
Pennsylvania76210,505,63177510,547,982
Ohio7729,521,4737959,623,842
Georgia4638,800,2624829,111,930
North Carolina7178,714,4807228,735,922
New Jersey3127,808,5283498,287,860
Virginia4556,927,8874636,990,249
Washington4636,516,1524736,638,419
Florida2136,556,0612146,587,419
Colorado5065,899,3085116,006,432
Massachusetts2575,727,8312655,922,442
Louisiana7914,726,1298595,005,492
Missouri4544,133,0424704,346,139
Tennessee2613,889,8322623,946,961
South Carolina2773,635,8572823,640,465
Wisconsin3723,076,5934453,615,039
Minnesota4033,352,7214043,376,728
Oklahoma4782,939,7364913,066,739
Nevada322,818,753372,831,125
Utah1452,675,6641472,676,522
Arkansas4302,409,2034412,493,897
Connecticut1272,272,9341332,326,954
Iowa6312,159,0636662,317,717
Kansas5551,488,3875831,612,572
West Virginia3521,476,2703571,481,209
Indiana1581,322,2831611,465,646
New Mexico941,113,4081171,300,819
Nebraska771,160,133821,231,194
Rhode Island36970,95837971,258
Hawaii18207,04621854,783
Delaware81761,99483792,329
District Of Columbia4667,3254667,325
North Dakota224619,689227636,136
Montana179466,042182470,392
Alaska134441,815136448,376
Wyoming114389,697122424,472
Vermont109345,697109345,697
Idaho18273,29019276,599
Maine45242,53045242,530
Mississippi38155,52638155,526
Maryland16251625

Utilities with the highest amounts of trichloroacetic acid, 2021-2023

ALL UTILITIES
LARGE UTILITIES
Utility Location Tests Average level People served
Newtok Water SystemNewtok, AK1 of 1190.0 ppb430
Echols County Water AuthorityStatenville, GA4 of 4135.3 ppb972
Lowndes County-alapaha Plantation S/dValdosta, GA24 of 24129.5 ppb296
Westhaven Community Services DistrictTrinidad, CA10 of 10109.4 ppb490
Asher Utility Dev AuthorityAsher, OK12 of 1285.4 ppb375
Village of Sikes Water SystemSikes, LA24 of 2483.6 ppb639
Wanette Public Works AuthorityWanette, OK10 of 1275.2 ppb402
Vallenar View Mobile Home ParkSacramento, AK11 of 1174.8 ppb225
Fairview Union Water System*Coushatta, LA23 of 2374.2 ppb2,346
Orient Water CompanyRepublic, WA9 of 973.6 ppb167
AmsterdamAmsterdam, NY4 of 469.1 ppb3,000
Amsterdam*Amsterdam, NY4 of 469.1 ppb22,132
Bellwood Water SystemProvencal, LA24 of 2468.3 ppb1,032
Osage County Rural Water District # 20 (hulah)Bartlesville, OK11 of 1266.0 ppb350
Rye, Town ofRye, CO14 of 1465.8 ppb745
PittsburgPittsburg, OK13 of 1362.7 ppb280
Forest Water Supply CorporationWells, TX24 of 2461.8 ppb561
Tatitlek Water SystemTatitlek, AK6 of 660.0 ppb95
Red Gate Mobile Home ParkShelton, WA12 of 1259.6 ppb25
Madera Co. Sa16 Sumner Hill-water SystemMadera, CA12 of 1258.7 ppb135
Rensselaerville Water DistrictMedusa, NY21 of 2258.1 ppb200
West Winn Water System Inc.Winnfield, LA24 of 2457.8 ppb2,064
Barton Flats Water SystemAngelus Oaks, CA1 of 157.6 ppb20
Timken, City ofTimken, KS1 of 255.0 ppb39
Grayhorse Rural Water DistrictFairfax, OK11 of 1154.6 ppb100
Madera Co. Md1-hidden Lake EstatesMadera, CA11 of 1154.4 ppb162
Brookside Village Mobile Home Park Public Water SystemCorona Del Mar, OH1 of 353.5 ppb475
Livermore Falls Water District*Livermore Falls, ME2 of 252.5 ppb2,968
Dixon, Town OfDixon, WY13 of 1352.4 ppb97
West Carthage VillageWest Carthage, NY8 of 851.7 ppb1,734
Spring Point Homeowners AssociationDeer Harbor, WA12 of 1250.0 ppb108
Knollwood Mobile Home ParkVidalia, GA2 of 449.3 ppb156
Vixen Water SystemChatham, LA24 of 2449.1 ppb774
KlawockKlawock, AK12 of 1248.9 ppb854
Carthage Village*Carthage, NY25 of 2548.7 ppb5,574
Heather Glen Community Service DistrictApplegate, CA4 of 447.8 ppb250
Wilna T Water District 1Carthage, NY12 of 1247.2 ppb240
Fcsa #30/el PorvenirFresno, CA11 of 1147.2 ppb241
MaysvilleMaysville, OK22 of 2347.0 ppb1,212
Philmont Boy Scout Ranch - HeadquartersCimarron, NM24 of 2446.8 ppb2,000
Kake Municipal WaterKake, AK11 of 1145.7 ppb400
Colorado City MdColorado City, CO34 of 3445.1 ppb2,175
Town of Tullos Water SystemTullos, LA24 of 2444.6 ppb792
Avant Utilities AuthorityAvant, OK12 of 1244.5 ppb361
TamoshanOlympia, WA12 of 1244.3 ppb260
Heritage Ranch Community Services DistrictPaso Robles, CA36 of 3643.1 ppb2,981
HahiraHahira, GA22 of 2242.9 ppb3,440
Lazy S Mobile RanchMiddletown, CA11 of 1142.7 ppb73
Peru Water DistrictPeru, NY6 of 642.5 ppb2,700
Parker Area Water AuthorityParker, PA24 of 2442.2 ppb900

* 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 Trichloroacetic acid, but it likely has the contaminant in its water supply.

UtilityLocationTestsAverage levelPeople served
Amsterdam*Amsterdam, NY4 of 469.1 ppb22,132
West Springfield Dpw Water DivisionWest Springfield, MA189 of 18942.2 ppb28,391
Springfield Water and Sewer Commission*Springfield, MA189 of 18942.2 ppb230,331
Plattsburgh CityPlattsburgh, NY12 of 1236.7 ppb24,908
Lowndes County-north Lowndes County WsValdosta, GA41 of 4136.2 ppb12,473
Rutland City Water Department*Proctor, VT48 of 4834.6 ppb18,500
Kensico Water DistrictValhalla, NY59 of 5933.0 ppb17,917
Agawam Water DepartmentAgawam, MA45 of 4831.6 ppb28,849
East Longmeadow DPW Water DepartmentEast Longmeadow, MA48 of 4831.0 ppb16,162
Tarrytown Water SupplyTarrytown, NY57 of 5729.8 ppb11,000
South Blount Utility District*Maryville, TN85 of 8528.5 ppb50,648
White Plains City*White Plains, NY107 of 10727.0 ppb59,353
CCWD Ebbetts Pass Improvement District*San Andreas, CA64 of 6426.7 ppb11,545
Westchester Joint Water Works*Mamaroneck, NY108 of 10926.7 ppb120,419
Claremore*Claremore, OK64 of 6425.2 ppb15,873
Buchanan County PSA*Vansant, VA48 of 4825.2 ppb19,326
McAlester PWA*Mcalester, OK48 of 4825.1 ppb18,206
Villa RicaVilla Rica, GA22 of 2225.0 ppb15,667
Blountville UDBlountville, TN52 of 5224.7 ppb15,234
Metropolitan District Commission*Hartford, CT144 of 14424.5 ppb390,887
Wilderness WTPRuckersville, VA49 of 4924.4 ppb12,856
Brevard, City ofBrevard, NC48 of 4824.3 ppb10,686
Gulfport Water SystemGulfport, FL1 of 124.2 ppb12,600
City of St. Petersburg*Odessa, FL1 of 124.2 ppb349,979
New York City System*Flushing, NY240 of 24024.0 ppb8,958,659
Mount Vernon Water DepartmentMount Vernon, NY107 of 10723.9 ppb67,292
Fitchburg Dpw, Div. of Water Supply*Fitchburg, MA72 of 7223.9 ppb40,545
Chicopee Water Department (MWRA)Chicopee, MA96 of 9623.8 ppb55,144
City of Bremerton*Bremerton, WA107 of 10923.6 ppb72,520
Rogers County Rural Water District # 3 Lake PlantClaremore, OK24 of 2423.5 ppb10,470
Lewisburg*Lewisburg, WV53 of 5323.5 ppb10,057
South Central Water AssnRaymond, MS4 of 423.5 ppb12,218
Naval Base Kitsap At BremertonSilverdale, WA48 of 4923.4 ppb12,078
Pickens Water Treatment Plant*Pickens, SC48 of 4823.4 ppb10,871
Mt Werner WD*Steamboat Springs, CO50 of 5023.4 ppb16,980
Southbridge Water DepartmentSouthbridge, MA59 of 5923.3 ppb15,287
Guilderland Town WDGuilderland, NY43 of 4423.3 ppb30,000
Capital Region WaterHarrisburg, PA103 of 10323.3 ppb66,540
Scarsdale Water DepartmentScarsdale, NY59 of 6023.2 ppb20,608
City of EdmondsEdmonds, WA48 of 4823.2 ppb34,023
City of Sheridan*Sheridan, WY44 of 4423.0 ppb22,700
Toccoa*Toccoa, GA44 of 4523.0 ppb24,960
Pa-american Water Co-connellsvUniontown, PA60 of 6022.9 ppb11,425
Madison County Water Facilities Board*Huntsville, AR24 of 2422.8 ppb10,750
Falls Twp Water & Sewer DeptFairless Hills, PA48 of 4822.8 ppb24,400
City of Mountlake TerraceMountlake Terrace, WA48 of 4822.7 ppb26,402
California American Water Company - ParkwaySacramento, CA80 of 8022.7 ppb49,150
City of Sacramento Main*Sacramento, CA80 of 8022.7 ppb520,746
Fruitridge Vista Water Company*Sacramento, CA80 of 8022.7 ppb15,167
Haralson County Water Auth.*Buchanan, GA30 of 3022.4 ppb12,220

* 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 Trichloroacetic acid, but it likely has the contaminant in its water supply.

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