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Monochloroacetic acid

Status: No national drinking water standard exists

 

Monochloroacetic 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.

2015:

FOUND

38

states detected

5,022

utilities detected

93 million

people served

Health concerns for monochloroacetic acid

Change to fetal growth and development

States reporting monochloroacetic acid in drinking water

UTILITIES WITH CONTAMINATION
State UtilitiesPeople Served
Texas1,05918,730,207
New York35214,611,122
California24712,890,221
Massachusetts1296,386,467
Ohio2274,339,363
Georgia693,890,748
Virginia2223,855,697
North Carolina2343,839,129
Oklahoma3372,154,220
Louisiana2202,130,152
Arkansas1471,785,457
Nevada131,750,874
Missouri341,694,792
Washington691,680,381
Kansas2591,579,473
West Virginia2621,173,727
New Mexico861,166,460
Minnesota521,108,927
Colorado153950,052
South Carolina32925,421
Wisconsin135924,041
Iowa217867,027
District Of Columbia4664,572
Delaware14583,259
Mississippi88520,196
Illinois85501,196
Montana86375,173
Pennsylvania21315,365
Rhode Island12292,863
Alaska40258,933
Wyoming63207,883
Vermont2299,311
Maine1591,167
Kentucky372,173
Hawaii439,012
Alabama237,278
North Dakota424,197
Maryland316,823
Tennessee11,068
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Utilities with the highest amounts of monochloroacetic acid, 2015

ALL UTILITIES
LARGE UTILITIES
UtilityLocationTestsAverage levelPeople served
Severy, City ofSevery, KS4 of 490.5 ppb241
Seeley County Water DistrictSeeley, CA2 of 240.9 ppb1,730
Prattsburgh Water DistrictPrattsburgh, NY1 of 140.0 ppb850
Williamsburg Public Water SupplyWilliamsburg, IA2 of 436.9 ppb3,068
Holtville, City OfHoltville, CA5 of 735.7 ppb6,032
Aplington Water SupplyAplington, IA1 of 134.6 ppb1,158
Newhall Water SupplyNewhall, IA1 of 130.2 ppb875
Barnsdall*Barnsdall, OK7 of 829.5 ppb1,243
Newburgh Consolidated WD*Newburgh, NY1 of 129.0 ppb29,663
City of SundownSundown, TX1 of 128.7 ppb1,397
Beth Mobile Home ParkCanton, OH1 of 128.1 ppb188
Blairstown Water SupplyBlairstown, IA1 of 128.0 ppb692
Poland Water Association*Alexandria, LA2 of 228.0 ppb816
City of BlytheBlythe, CA11 of 1627.0 ppb12,155
Alma WaterworksAlma, WI1 of 126.1 ppb863
Dearing, City of*Dearing, KS1 of 226.0 ppb408
Westmorland, City OfWestmorland, CA4 of 825.6 ppb2,444
Emmetsburg Municipal Water DepartmentEmmetsburg, IA1 of 125.3 ppb3,931
City of CalexicoCalexico, CA5 of 924.8 ppb38,572
Heber Public Utility DistrictHeber, CA6 of 824.4 ppb6,180
City of KosseKosse, TX2 of 221.3 ppb500
Shullsburg WaterworksShullsburg, WI1 of 120.7 ppb1,222
Ramey Water Supply CorporationMineola, TX1 of 120.6 ppb4,242
Ellsworth, City ofEllsworth, KS1 of 120.0 ppb3,076
City of ClarksvilleClarksville, TX4 of 419.5 ppb3,237
Wilton WaterworksWilton, WI1 of 119.4 ppb503
Prairie Ridge AssociationCrystal Lake, IL1 of 118.4 ppb130
Almena WaterworksAlmena, WI1 of 118.1 ppb677
Country Pines Subdivision Water SystemCovington, LA2 of 217.6 ppb1,101
City of CrosbytonCrosbyton, TX1 of 417.5 ppb2,083

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

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UtilityLocationTestsAverage levelPeople served
Newburgh Consolidated WD*Newburgh, NY1 of 129.0 ppb29,663
City of BlytheBlythe, CA11 of 1627.0 ppb12,155
City of CalexicoCalexico, CA5 of 924.8 ppb38,572
City of BrawleyBrawley, CA13 of 2214.1 ppb51,793
Eastern Municipal Water District*Perris, CA52 of 739.98 ppb512,711
Rainbow Municipal WD*Fallbrook, CA13 of 169.73 ppb19,611
La Crosse WaterworksLa Crosse, WI1 of 28.45 ppb53,000
Wadsworth City PWS*Wadsworth, OH2 of 27.96 ppb21,567
Ottumwa Water Works*Ottumwa, IA9 of 167.19 ppb25,023
La Verne WDLa Verne, CA11 of 166.89 ppb32,230
Ontario Municipal Utilities CompanyOntario, CA18 of 326.42 ppb167,382
Culkin Water DistrictVicksburg, MS16 of 166.31 ppb12,000
Western Municipal Water District*Riverside, CA11 of 335.96 ppb50,823
Fond Du Lac WaterworksFond Du Lac, WI2 of 165.85 ppb42,000
Red Bank Water DepartmentRed Bank, NJ of 0ND0
Rubidoux Community SD*Rubidoux, CA13 of 165.70 ppb26,150
Burlington Municipal Waterworks*Burlington, IA15 of 165.62 ppb25,619
Water Works District #1 of Vermilion*Maurice, LA5 of 165.58 ppb21,300
City of HerefordHereford, TX12 of 165.50 ppb15,370
City of Chino Hills*Chino Hills, CA25 of 325.39 ppb75,655
Pella Water Works Department*Pella, IA16 of 165.12 ppb10,352
Onalaska WaterworksOnalaska, WI2 of 25.09 ppb18,000
City of Tyler*Tyler, TX20 of 324.94 ppb109,242
Barnegat Twp Water SewerBarnegat, NJ of 0ND0
Long Beach Twp Brant BeachBrant Beach, NJ of 0ND0
East Fork SUDWylie, TX6 of 84.79 ppb10,872
Canyon Municipal Water System*Canyon, TX11 of 164.76 ppb13,300
City of Bedford*Bedford, TX12 of 164.73 ppb46,979
US Air Force AcademyUsaf Academy, CO4 of 44.63 ppb16,876
Spring Lake Water DepartmentSpring Lake, NJ of 0ND0

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

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