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CONTAMINANT

Metolachlor

STATES DETECTED

16

serves

6.6 million

utilities detected

517

Overview

Metolachlor is a herbicide applied on corn, soybeans and other crops. The EPA has classified metolachlor as a possible human carcinogen.

Want to remove
Metolachlor from your water?

Try these filter technologies:

Activated Carbon, 

Reverse Osmosis, 

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Metolachlor around the Country

UTILITIES WITH CONTAMINATION
State Utilities People Served
Texas1852,727,895
District Of Columbia3847,323
Wisconsin51843,843
Iowa60781,694
Kansas113689,999
South Carolina9235,093
Missouri3192,785
Rhode Island588,669
Alabama559,534
Illinois3157,481
New York644,882
Connecticut143,069
Nebraska1026,070
Delaware313,590
Pennsylvania312,195
Washington1180

Utilities with the highest amounts of metolachlor, 2021-2023

ALL UTILITIES
LARGE UTILITIES
Utility Location Tests Average level People served
Wilson County Rural Water District 12Neodesha, KS1 of 14.60 ppb123
Neodesha, City of*Neodesha, KS1 of 14.60 ppb2,246
Wilson County Rural Water District 6Neodesha, KS1 of 14.60 ppb30
Wilson County Rural Water District 8Neodesha, KS1 of 14.60 ppb32
Marais Des Cygnes Public Utility Authority*Louisburg, KS3 of 33.30 ppb1
Paola, City ofPaola, KS3 of 33.30 ppb5,786
Richmond, City ofRichmond, KS1 of 13.20 ppb442
Lacygne, City of*La Cygne, KS1 of 12.70 ppb1,119
City of Parsons*Parsons, KS3 of 32.27 ppb9,479
Laurel Pump DistrictDover, DE2 of 21.55 ppb81
Allen County Rural Water District 10Humboldt, KS1 of 11.50 ppb125
Humboldt, City of*Humboldt, KS1 of 11.50 ppb1,836
Franklin County Rural Water District 6*Rantoul, KS1 of 11.30 ppb2,960
Lane, City ofLane, KS1 of 11.30 ppb244
Schuyler, City ofSchuyler, NE4 of 81.24 ppb6,547
PalmyraPalmyra, IL9 of 101.12 ppb850
ModestoModesto, IL9 of 101.12 ppb182
Scottville Rural Water Company Inc.Palmyra, IL9 of 101.12 ppb723
Palmyra-modesto Water Commission*Modesto, IL9 of 101.12 ppb115
Osage County Rural Water District 3Vassar, KS1 of 11.10 ppb900
Bradshaw, Village ofBradshaw, NE1 of 11.09 ppb273
West Delta Water Supply CorporationKlondike, TX3 of 31.03 ppb1,473
Valley Falls, City ofValley Falls, KS1 of 10.930 ppb1,086
Shawnee County Rural Water District 3c*Topeka, KS4 of 50.902 ppb2,675
Shawnee County RWD 4C*Topeka, KS4 of 50.902 ppb12,000
City of Topeka*Topeka, KS4 of 50.902 ppb165,000
Shawnee County Rural Water District 1cAuburn, KS4 of 50.902 ppb4,160
Metro Topeka Airport AuthorityTopeka, KS4 of 50.902 ppb500
Pretty Prairie, City ofPretty Prairie, KS1 of 10.860 ppb655
Labette County Rural Water District 1cOswego, KS1 of 10.830 ppb285
Oswego, City of*Oswego, KS1 of 10.830 ppb1,680
City of Cooper*Cooper, TX3 of 30.800 ppb2,239
Delta County Municipal Utility District*Cooper, TX3 of 30.800 ppb2,778
GermantownGermantown, IL1 of 10.700 ppb1,531
Osawatomie, City of*Osawatomie, KS2 of 30.647 ppb4,280
Franklin County Rural Water District 4Williamsburg, KS2 of 30.603 ppb2,281
Princeton, City of*Princeton, KS2 of 30.603 ppb252
City of Ottawa*Ottawa, KS2 of 30.603 ppb12,604
Franklin County Rural Water District 2Ottawa, KS2 of 30.603 ppb400
Erie, City of*Erie, KS1 of 10.580 ppb1,037
Neosho County Rural Water District 1cErie, KS1 of 10.580 ppb670
Wayne City*Wayne City, IL2 of 20.570 ppb1,239
SimsSims, IL2 of 20.570 ppb259
EvansvilleEvansville, IL9 of 120.568 ppb700
Muscoda WaterworksMuscoda, WI2 of 20.557 ppb1,453
Cherokee County Rural Water District 9Riverton, KS2 of 30.530 ppb900
Baxter Springs, City of*Baxter Springs, KS2 of 30.530 ppb3,852
Chanute, City of*Chanute, KS2 of 30.517 ppb8,642
Allen County Rural Water District 13Chanute, KS2 of 30.517 ppb100
Fairfield*Fairfield, IL6 of 120.513 ppb6,202

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

UtilityLocationTestsAverage levelPeople served
City of Topeka*Topeka, KS4 of 50.902 ppb165,000
Shawnee County RWD 4C*Topeka, KS4 of 50.902 ppb12,000
City of Ottawa*Ottawa, KS2 of 30.603 ppb12,604
Rathbun Regional Water Assn*Centerville, IA3 of 30.433 ppb32,000
City of Olathe*Olathe, KS2 of 30.403 ppb143,014
City of Paris*Paris, TX5 of 50.260 ppb25,171
Lamar County Water Supply District*Paris, TX5 of 50.260 ppb25,530
Henry County Water Company*Clinton, MO2 of 90.247 ppb11,373
City of Ankeny*Ankeny, IA1 of 10.200 ppb68,090
Clive Water DepartmentClive, IA1 of 10.200 ppb18,601
Des Moines Water Works*Des Moines, IA1 of 10.200 ppb245,123
Johnston Municipal Water SupplyJohnston, IA1 of 10.200 ppb24,064
Urbandale Water Utility*Urbandale, IA1 of 10.200 ppb45,600
West Des Moines Water WorksWest Des Moines, IA1 of 10.200 ppb68,723
Warren Water District*Indianola, IA1 of 10.200 ppb20,095
Norwalk Water SupplyNorwalk, IA1 of 10.200 ppb12,799
Cedar Rapids Water Department*Cedar Rapids, IA46 of 500.200 ppb141,420
Waukee Water Supply*Waukee, IA1 of 10.200 ppb23,940
City of Sulphur Springs*Sulphur Springs, TX3 of 30.167 ppb15,449
Miami County Rural Water District 2*Paola, KS1 of 30.167 ppb10,311
City of Taylor*Taylor, TX2 of 30.150 ppb20,622
Maryville*Maryville, MO2 of 110.118 ppb10,775
Smithville PWS*Smithville, MO2 of 90.111 ppb10,290
Leavenworth Water Department*Leavenworth, KS1 of 60.108 ppb38,757
Sonterra Municipal Utility DistrictAustin, TX1 of 60.102 ppb13,650
Grand Strand Water and Sewer Authority*Conway, SC1 of 50.1000 ppb172,016
City of ConwayConway, SC1 of 50.1000 ppb23,595
Conway RuralConway, SC1 of 50.1000 ppb10,823
City of AndrewsAndrews, TX1 of 10.1000 ppb14,109
Garrison Lake Pump DistrictDover, DE2 of 20.1000 ppb13,467
City of PortlandPortland, TX1 of 30.0967 ppb20,536
City of Rockport*Rockport, TX1 of 30.0967 ppb28,539
City of InglesideIngleside, TX1 of 30.0967 ppb10,106
Plover WaterworksPlover, WI3 of 30.0893 ppb12,420
City of Corsicana*Corsicana, TX2 of 60.0667 ppb24,190
Bear Valley Joint Authority*St Thomas, PA1 of 20.0650 ppb12,000
NeoshoNeosho, MO1 of 90.0511 ppb12,157
Kansas City Board of Public Utilities*Kansas City, KS2 of 50.0500 ppb152,960
St. Elmo-irvington Water AuthoritySt Elmo, AL2 of 60.0500 ppb10,284
City of Richmond*Richmond, TX2 of 120.0483 ppb15,105
City of Ennis*Ennis, TX1 of 30.0333 ppb21,203
City of RichardsonRichardson, TX3 of 90.0333 ppb115,630
City of WylieWylie, TX3 of 90.0333 ppb47,322
City of AllenAllen, TX3 of 90.0333 ppb104,870
East Fork SUDWylie, TX3 of 90.0333 ppb17,589
City of RowlettRowlett, TX3 of 90.0333 ppb66,212
City of McKinneyMckinney, TX3 of 90.0333 ppb211,397
City of MurphyMurphy, TX3 of 90.0333 ppb19,185
North Collin Special Utility DistrictMelissa, TX3 of 90.0333 ppb10,674
City of Garland*Garland, TX3 of 90.0333 ppb248,822

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

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