Alachlor (Lasso)
Portsmouth Public Water System
Alachlor is a widely used agricultural herbicide. It causes cancer in laboratory animals and may be carcinogenic to people.
17
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 | 3 | 0 | ND |
| 2015 | ND | 3 | 0 | ND |
| 2016 | ND | 3 | 0 | ND |
| 2017 | ND | 3 | 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 |
|---|---|---|
| 2014-04-16 | A140191079 | ND |
| 2014-05-01 | A140191080 | ND |
| 2014-06-05 | A140191322 | ND |
| 2015-04-02 | A150232398 | ND |
| 2015-05-07 | A150232397 | ND |
| 2015-06-04 | A150285593 | ND |
| 2016-04-06 | A160374698 | ND |
| 2016-05-05 | A160374884 | ND |
| 2016-06-02 | A160399164 | ND |
| 2017-04-05 | A170487412 | ND |
| 2017-05-03 | A170498017 | ND |
| 2017-06-07 | A170498165 | ND |
| 2018-04-04 | A180587703 | ND |
| 2018-06-06 | A180604594 | ND |
| 2019-04-03 | 9D00514-01 | ND |
| 2019-05-01 | 9E00139-01 | ND |
| 2019-06-05 | 9F00591-01 | ND |