Alachlor (Lasso)
Collegeville Trappe Joint Public Works Department
Alachlor is a widely used agricultural herbicide. It causes cancer in laboratory animals and may be carcinogenic to people.
41
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 | N/A | 0 | 0 | N/A |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | ND | 20 | 0 | ND |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | ND | 21 | 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 |
|---|---|---|
| 2020-05-04 | 22213301.00 | ND |
| 2020-05-04 | 22213271.00 | ND |
| 2020-05-04 | 22213241.00 | ND |
| 2020-05-18 | 22213568.00 | ND |
| 2020-05-18 | 22213538.00 | ND |
| 2020-05-18 | 22213505.00 | ND |
| 2020-05-18 | 22213475.00 | ND |
| 2020-06-08 | 22414093.00 | ND |
| 2020-06-08 | 22414123.00 | ND |
| 2020-06-08 | 22414153.00 | ND |
| 2020-08-03 | 22797362.00 | ND |
| 2020-08-03 | 22797332.00 | ND |
| 2020-08-03 | 22797497.00 | ND |
| 2020-08-03 | 22797273.00 | ND |
| 2020-08-03 | 22797302.00 | ND |
| 2020-08-17 | 22797760.00 | ND |
| 2020-08-17 | 22797819.00 | ND |
| 2020-08-17 | 22797877.00 | ND |
| 2020-08-17 | 22797848.00 | ND |
| 2020-08-17 | 22797790.00 | ND |
| 2023-04-17 | 28700851.00 | ND |
| 2023-04-17 | 28700852.00 | ND |
| 2023-04-17 | 28700849.00 | ND |
| 2023-04-17 | 28700853.00 | ND |
| 2023-04-17 | 28700850.00 | ND |
| 2023-04-17 | 28700854.00 | ND |
| 2023-05-01 | 28898950.00 | ND |
| 2023-05-01 | 28898953.00 | ND |
| 2023-05-01 | 28898952.00 | ND |
| 2023-05-01 | 28898951.00 | ND |
| 2023-07-24 | 29495809.00 | ND |
| 2023-07-24 | 29495804.00 | ND |
| 2023-07-24 | 29495803.00 | ND |
| 2023-07-24 | 29495802.00 | ND |
| 2023-07-24 | 29495810.00 | ND |
| 2023-07-24 | 29495808.00 | ND |
| 2023-08-07 | 29495801.00 | ND |
| 2023-08-07 | 29495807.00 | ND |
| 2023-08-07 | 29495806.00 | ND |
| 2023-08-07 | 29495805.00 | ND |
| 2023-11-20 | 30070250.00 | ND |