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EWG's Tap Water Database

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Alachlor (Lasso)

Status: National drinking water standard exists

 

Alachlor is a widely used agricultural herbicide. It causes cancer in laboratory animals and may be carcinogenic to people.

2015:

FOUND

2

states detected

13

utilities detected

25,276

people served

Health concerns for alachlor

Cancer

Harm to the liver

Harm to the kidney

Harm to the spleen

State and national drinking water standards and health guidelines

EPA Maximum Contaminant
Level (MCL) 2 ppb

The enforceable federal standard that defines the highest level of a contaminant allowed in drinking water.

ppb = parts per billion.

EPA Maximum Contaminant
Level Goal (MCLG)0 ppb

A non-enforceable federal health guideline. For cancer-causing chemicals, these health goals are typically set to zero.

ppb = parts per billion.

States reporting alachlor in drinking water

UTILITIES WITH CONTAMINATION
State UtilitiesPeople Served
Kansas1225,211
Oregon165
MORE
LESS

Utilities with the highest amounts of alachlor, 2015

ALL UTILITIES
LARGE UTILITIES
UtilityLocationTestsAverage levelPeople served
Poynette Mobile EstatesPoynette, WI of 0ND0
Riverfront Trailer ParkGrants Pass, OR1 of 20.200 ppb65
Public Wholesale WSD 5*Iola, KS1 of 50.0580 ppb12,192
Pine Grove VillaBancroft, WI 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 Alachlor (Lasso), but it likely has the contaminant in its water supply.

UtilityLocationTestsAverage levelPeople served
Public Wholesale WSD 5*Iola, KS1 of 50.0580 ppb12,192

* 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 Alachlor (Lasso), but it likely has the contaminant in its water supply.