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EWG's Tap Water Database — 2021 UPDATE

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Acetochlor

Status: No national drinking water standard exists

 

Acetochlor is a herbicide used on cabbage, citrus, coffee and corn crops; it is a probable human carcinogen.

2017-2019:

FOUND

3

states detected

76

utilities detected

382,000

people served

Health concerns for acetochlor

Cancer

States reporting acetochlor in drinking water

UTILITIES WITH CONTAMINATION
State UtilitiesPeople Served
Kansas73379,021
Oklahoma21,840
Illinois1700
MORE
LESS

Filtering technologies that reduce acetochlor

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Activated Carbon

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Reverse Osmosis

Utilities with the highest amounts of acetochlor, 2017-2019

ALL UTILITIES
LARGE UTILITIES
UtilityLocationTestsAverage levelPeople served
Humboldt, City of*Humboldt, KS2 of 30.677 ppb1,789
Allen County Rural Water District 10Chanute, KS2 of 30.677 ppb125
Great Plains Development AuthorityParsons, KS3 of 30.607 ppb182
Neosho County Rural Water District 1cErie, KS3 of 30.547 ppb670
Erie, City of*Erie, KS3 of 30.547 ppb1,085
University Water SystemIowa City, IA1 of 10.500 ppb26,684
Atchison County Rural Water District 1Atchison, KS5 of 60.473 ppb490
Atchison County Rural Water District 3Atchison, KS5 of 60.473 ppb110
City of Atchison*Atchison, KS5 of 60.473 ppb10,636
Atchison County Rural Water District 6Atchison, KS5 of 60.473 ppb670
City of Topeka*Topeka, KS3 of 50.418 ppb165,000
Shawnee County Rural Water District 3c*Topeka, KS3 of 50.418 ppb2,675
Shawnee County Rural Water District 1cAuburn, KS3 of 50.418 ppb4,160
Metro Topeka Airport AuthorityTopeka, KS3 of 50.418 ppb500
Wilson County Rural Water District 11*Fredonia, KS3 of 60.350 ppb833
Thayer, City of*Thayer, KS3 of 60.350 ppb464
Neosho County Rural Water District 7Chanute, KS3 of 60.350 ppb625
Wilson County Rural Water District 7Fredonia, KS3 of 60.350 ppb460
Buffalo, City ofBuffalo, KS3 of 60.350 ppb213
Wilson County Rural Water District 1Fredonia, KS3 of 60.350 ppb307
Wilson County Rural Water District 2Fredonia, KS3 of 60.350 ppb194
Fredonia, City ofFredonia, KS3 of 60.350 ppb2,264
Neosho County Rural Water District 9Chanute, KS3 of 60.350 ppb200
Wilson County Rural Water District 10Chanute, KS3 of 60.350 ppb808
Altoona, City ofAltoona, KS3 of 60.350 ppb380
Wilson County Rural Water District 5Benedict, KS3 of 60.350 ppb110
Montgomery County Rural Water District 9Fredonia, KS3 of 60.350 ppb430
Public Wholesale Water Supply District 23*Fredonia, KS3 of 60.350 ppb1
Neosho County Rural Water District 12Chanute, KS3 of 60.350 ppb437
Wilson County Rural Water District 13Fredonia, KS3 of 60.350 ppb223
Neosho County Rural Water District 6Chanute, KS3 of 60.350 ppb314
Montgomery County Rural Water District 14Coffeyville, KS4 of 50.348 ppb330
Coffeyville, City of*Coffeyville, KS4 of 50.348 ppb9,366
Labette County Rural Water District 6Coffeyville, KS4 of 50.348 ppb1,550
South CoffeyvilleSouth Coffeyville, OK4 of 50.348 ppb790
Dearing, City of*Dearing, KS4 of 50.348 ppb386
Nowata County Rural Water District #7South Coffeyville, OK4 of 50.348 ppb1,050
Montgomery County Rural Water District 2c ASouth Coffeyville, KS4 of 50.348 ppb1,113
Mound City, City ofMound City, KS2 of 50.332 ppb686
Public Wholesale WSD 13*Mound City, KS2 of 50.332 ppb1
Blue Mound, City ofBlue Mound, KS2 of 50.332 ppb273
Linn County Rural Water District 1La Cygne, KS2 of 50.332 ppb1,200
Hume PWSHume, MO2 of 50.332 ppb336
Linn County Rural Water District 2*Mound City, KS2 of 50.332 ppb1,960
Parker, City ofParker, KS2 of 50.332 ppb267
Beloit, City of*Beloit, KS3 of 60.317 ppb3,726
Mitchell County Rural Water District 1Beloit, KS3 of 60.317 ppb345
Independence, City of*Independence, KS3 of 50.304 ppb8,598
Montgomery County Rural Water District 4Sycamore, KS3 of 50.304 ppb745
Montgomery County Rural Water District 8Independence, KS3 of 50.304 ppb340

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

UtilityLocationTestsAverage levelPeople served
University Water SystemIowa City, IA1 of 10.500 ppb26,684
City of Atchison*Atchison, KS5 of 60.473 ppb10,636
City of Topeka*Topeka, KS3 of 50.418 ppb165,000
Fort Leavenworth American Water Ent IncFort Leavenworth, KS4 of 100.223 ppb12,934
Leavenworth Water Department*Leavenworth, KS4 of 100.223 ppb36,062
City of GardnerGardner, KS1 of 60.0217 ppb21,871

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