Alachlor (Lasso)
Guilford Water Authority
Alachlor is a widely used agricultural herbicide. It causes cancer in laboratory animals and may be carcinogenic to people.
20
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 | 3 | 0 | ND |
| 2019 | ND | 1 | 0 | ND |
| 2020 | ND | 6 | 0 | ND |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | ND | 10 | 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 |
|---|---|---|
| 2018-05-29 | 8055384-01 | ND |
| 2018-09-04 | 8091925-01 | ND |
| 2018-12-11 | 8122846-01 | ND |
| 2019-03-05 | 9032320-01 | ND |
| 2020-06-09 | 22559591.00 | ND |
| 2020-06-09 | 22559561.00 | ND |
| 2020-06-09 | 22559531.00 | ND |
| 2020-09-09 | 23136533.00 | ND |
| 2020-09-09 | 23136569.00 | ND |
| 2020-09-09 | 23136599.00 | ND |
| 2023-05-24 | 29053436.00 | ND |
| 2023-05-24 | 29053403.00 | ND |
| 2023-06-07 | 29253972.00 | ND |
| 2023-06-07 | 29253961.00 | ND |
| 2023-06-07 | 29253950.00 | ND |
| 2023-07-18 | 29651248.00 | ND |
| 2023-08-01 | 29651266.00 | ND |
| 2023-08-01 | 29651213.00 | ND |
| 2023-08-22 | 29840440.00 | ND |
| 2023-08-22 | 29840456.00 | ND |