Know Your Environment. Protect Your Health.

Alachlor (Lasso)

Franklin County Rural Water District 4

NOTE: Franklin County Rural Water District 4 purchases water from City of Ottawa which is required to test for alachlor (lasso). Sample information shown below was taken by City of Ottawa.

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

 

6

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND10ND
2020ND10ND
2021ND10ND
2022ND10ND
2023ND10ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EPA Maximum Contaminant
Level (MCL): 2 ppb

The legal limit for alachlor, established in 1991, was based on toxicity studies in laboratory animals conducted in the 1980s.

ppb = parts per billion

All test results

NOTE: Franklin County Rural Water District 4 purchases water from City of Ottawa which is required to test for alachlor (lasso). Sample information shown below was taken by City of Ottawa.

Date Lab ID Result
2018-06-13987800ND
2019-06-191188331ND
2020-06-171406954ND
2021-06-301870953ND
2022-05-112256211ND
2023-05-162501690ND