Know Your Environment. Protect Your Health.

Alachlor (Lasso)

Guadalupe Blanco River Authority

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

 

12

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
2022ND40ND
2023ND40ND

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

Date Lab ID Result
2018-03-01AE16455ND
2019-02-25AE56116ND
2020-03-16AF03078ND
2021-03-22AF47903ND
2022-02-14AF84742ND
2022-04-26AF94678ND
2022-08-18AG10108ND
2022-12-29AG23208ND
2023-02-15AG29147ND
2023-04-18AG37203ND
2023-07-24AG49877ND
2023-10-18AG60308ND