Alachlor (Lasso)
Bristol Water Department
Alachlor is a widely used agricultural herbicide. It causes cancer in laboratory animals and may be carcinogenic to people.
15
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 |
|---|---|---|---|---|
| 2018 | ND | 1 | 0 | ND |
| 2019 | ND | 1 | 0 | ND |
| 2020 | ND | 5 | 0 | ND |
| 2021 | ND | 2 | 0 | ND |
| 2022 | ND | 1 | 0 | ND |
| 2023 | ND | 5 | 0 | ND |
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 |
|---|---|---|
| 2018-07-09 | D8G0647-01SOC | ND |
| 2019-03-27 | D9C2625-01SOCR | ND |
| 2020-02-26 | D0B2110-01SOC | ND |
| 2020-02-26 | D0B2110-02SOC | ND |
| 2020-02-26 | D0B2110-03SOC | ND |
| 2020-02-26 | D0B2110-04SOC | ND |
| 2020-02-26 | D0B2111-01SOCR | ND |
| 2021-02-25 | D1B2160-01SOC | ND |
| 2021-02-25 | D1B2162-01SOC | ND |
| 2022-02-03 | D2B0371-01SOC | ND |
| 2023-02-23 | D3B2330-01SOC | ND |
| 2023-03-06 | D3C0647-02SOC | ND |
| 2023-03-15 | D3C1379-01SOC | ND |
| 2023-03-15 | D3C1379-02SOC | ND |
| 2023-03-22 | D3C2016-01SOC | ND |