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EWG's Tap Water Database — 2019 UPDATE

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Desethylatrazine

Status: No national drinking water standard exists

 

Desethylatrazine, or deethylatrazine, and desisopropylatrazine are formed from the degradation of atrazine, a herbicide associated with hormonal disruption in people and wildlife.

2015-2017:

FOUND
FOUND ABOVE HEALTH GUIDELINES

3

states detected

110

utilities detected

1.4 million

people served

3

states over health guideline

91

utilities over health guideline

498,000

people served over health guideline

Health concerns for desethylatrazine

Harm to the developing fetus

Hormone disruption

Harm to the reproductive system

Changes in the nervous system

Changes in brain and behavior

Cancer

State and national drinking water standards and health guidelines

EWG Health Guideline 0.1 ppb

The EWG Health Guideline of 0.1 ppb for desethylatrazine was defined by EWG based on epidemiological studies of human exposure to atrazine in drinking water. This health guideline protects against harm to the developing fetus, harm to the reproductive system and hormone disruption.

ppb = parts per billion

States reporting desethylatrazine in drinking water

UTILITIES REPORTING ABOVE HEALTH GUIDELINES UTILITIES WITH CONTAMINATION
State UtilitiesPeople Served UtilitiesPeople Served
Wisconsin515,39135966,108
Kansas85482,15974477,731
Missouri13361336
MORE
LESS

Filtering technologies that reduce desethylatrazine

carbon filter icon

Activated Carbon

reverse osmosis icon

Reverse Osmosis

Utilities with the highest amounts of desethylatrazine, 2015-2017

ALL UTILITIES
LARGE UTILITIES
UtilityLocationTestsAverage levelPeople served
City of Topeka*Topeka, KS2 of 30.867 ppb165,000
Metro Topeka Airport AuthorityTopeka, KS2 of 30.867 ppb500
Shawnee County Rural Water District 3c*Topeka, KS2 of 30.867 ppb1,785
Shawnee County Rural Water District 1cAuburn, KS2 of 30.867 ppb4,160
Carbondale, City of*Carbondale, KS1 of 10.850 ppb1,405
Elk County Rural Water District 2Howard, KS1 of 10.700 ppb206
Howard, City of*Howard, KS1 of 10.700 ppb642
Lane, City ofLane, KS1 of 10.680 ppb222
Franklin County Rural Water District 6*Rantoul, KS1 of 10.680 ppb2,960
Richmond, City ofRichmond, KS1 of 10.640 ppb457
Mitchell County Rural Water District 1Beloit, KS2 of 30.550 ppb345
Beloit, City of*Beloit, KS2 of 30.550 ppb3,792
Russell, City ofRussell, KS1 of 30.533 ppb4,484
Iola, City of*Iola, KS2 of 30.483 ppb5,553
Gas City, City ofGas, KS2 of 30.483 ppb532
Allen County Rural Water District 15Iola, KS2 of 30.483 ppb135
Osborne County Rural Water District 2Natoma, KS1 of 10.480 ppb55
Saline County Rural Water District 7*Assaria, KS1 of 10.480 ppb355
Brookville, City ofBrookville, KS1 of 10.480 ppb266
Waldo, City ofWaldo, KS1 of 10.480 ppb30
Paradise, City ofParadise, KS1 of 10.480 ppb49
Luray, City ofLuray, KS1 of 10.480 ppb195
Ellsworth County Rural Water District 1*Ellsworth, KS1 of 10.480 ppb2,626
Mitchell County Rural Water District 2*Glen Elder, KS1 of 10.460 ppb1,291
Tipton, City ofTipton, KS1 of 10.460 ppb207
Mitchell County Rural Water District 3*Beloit, KS1 of 10.460 ppb2,048
Hunter, City ofHunter, KS1 of 10.460 ppb56
Marion County Improvement District 2Marion, KS1 of 10.400 ppb234
Marion, City of*Marion, KS1 of 10.400 ppb1,861
Lacygne, City of*La Cygne, KS1 of 10.380 ppb1,116
Atchison County Rural Water District 1Atchison, KS1 of 30.333 ppb490
Atchison County Rural Water District 3Atchison, KS1 of 30.333 ppb110
City of Atchison*Atchison, KS1 of 30.333 ppb10,771
Atchison County Rural Water District 6Atchison, KS1 of 30.333 ppb670
Fort Scott, City of*Fort Scott, KS1 of 30.240 ppb7,874
Spring Green WaterworksSpring Green, WI1 of 10.210 ppb1,626
City of Ottawa*Ottawa, KS1 of 30.183 ppb12,403
Princeton, City of*Princeton, KS1 of 30.183 ppb267
Franklin County Rural Water District 4Williamsburg, KS1 of 30.183 ppb2,281
Franklin County Rural Water District 2Ottawa, KS1 of 30.183 ppb400
City of Olathe*Olathe, KS1 of 30.180 ppb133,062
Parker, City ofParker, KS1 of 30.170 ppb273
Linn County Rural Water District 2*Mound City, KS1 of 30.170 ppb1,960
Linn County Rural Water District 1La Cygne, KS1 of 30.170 ppb1,200
Public Wholesale WSD 13*Mound City, KS1 of 30.170 ppb16,053
Hume PWSHume, MO1 of 30.170 ppb336
Blue Mound, City ofBlue Mound, KS1 of 30.170 ppb275
Mound City, City ofMound City, KS1 of 30.170 ppb682
Lyon County Rural Water District 5Emporia, KS1 of 30.167 ppb1,310
Lyon County Rural Water District 2*Emporia, KS1 of 30.167 ppb750

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

UtilityLocationTestsAverage levelPeople served
City of Topeka*Topeka, KS2 of 30.867 ppb165,000
City of Atchison*Atchison, KS1 of 30.333 ppb10,771
City of Ottawa*Ottawa, KS1 of 30.183 ppb12,403
City of Olathe*Olathe, KS1 of 30.180 ppb133,062
Public Wholesale WSD 13*Mound City, KS1 of 30.170 ppb16,053
City of Emporia*Emporia, KS1 of 30.167 ppb24,799
Middleton WaterworksMiddleton, WI1 of 10.0420 ppb17,903
Plover WaterworksPlover, WI1 of 10.0390 ppb12,420
Marshfield UtilitiesMarshfield, WI1 of 10.0350 ppb18,708
Greendale WaterworksGreendale, WI4 of 100.00700 ppb14,046
West Allis WaterworksWest Allis, WI4 of 100.00700 ppb63,240
Wauwatosa WaterworksWauwatosa, WI4 of 100.00700 ppb49,064
Shorewood WaterworksShorewood, WI4 of 100.00700 ppb13,189
Menomonee Falls WW - Surface WaterMenomonee Falls, WI4 of 100.00700 ppb23,867
New Berlin Water UtilityNew Berlin, WI4 of 100.00700 ppb27,899
Milwaukee Waterworks*Milwaukee, WI4 of 100.00700 ppb647,290
Brown Deer WaterworksBrown Deer, WI4 of 100.00700 ppb12,741

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