Alachlor (Lasso)
City of Henderson
Alachlor is a widely used agricultural herbicide. It causes cancer in laboratory animals and may be carcinogenic to people.
13
Samples
0
Samples exceeding legal limit (MCL)
0
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | ND | 2 | 0 | ND |
| 2015 | ND | 2 | 0 | ND |
| 2016 | ND | 2 | 0 | ND |
| 2017 | ND | 2 | 0 | ND |
| 2018 | ND | 2 | 0 | ND |
| 2019 | ND | 3 | 0 | ND |
ppb = parts per billion
State and national drinking water standards and health guidelines
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 |
|---|---|---|
| 2014-02-18 | 14020225-004 | ND |
| 2014-08-19 | 14080292-004 | ND |
| 2015-02-17 | 15020219-004 | ND |
| 2015-11-10 | 15110168-004 | ND |
| 2016-02-08 | 16020070-004 | ND |
| 2016-08-09 | S1602398001 | ND |
| 2017-02-13 | S1701131001 | ND |
| 2017-08-14 | S1701202001 | ND |
| 2018-02-06 | S1705770001 | ND |
| 2018-08-07 | S1801120001 | ND |
| 2019-02-19 | S1805456001 | ND |
| 2019-02-19 | S1805456001 | ND |
| 2019-10-29 | S1953596001 | ND |