Alachlor (Lasso)
Londonderry Court Mobile Home Park
NOTE: Londonderry Court Mobile Home Park purchases water from Chester Water Authority which is required to test for alachlor (lasso). Sample information shown below was taken by Chester Water Authority.
Alachlor is a widely used agricultural herbicide. It causes cancer in laboratory animals and may be carcinogenic to people.
Samples
Samples exceeding legal limit (MCL)
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 | 4 | 0 | ND |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | ND | 2 | 0 | ND |
| 2018 | ND | 1 | 0 | ND |
| 2019 | N/A | 0 | 0 | N/A |
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
NOTE: Londonderry Court Mobile Home Park purchases water from Chester Water Authority which is required to test for alachlor (lasso). Sample information shown below was taken by Chester Water Authority.
| Date | Lab ID | Result |
|---|---|---|
| 2014-04-23 | 1414304 | ND |
| 2014-07-09 | 1425425 | ND |
| 2015-04-06 | 12630675 | ND |
| 2015-07-29 | 13010341 | ND |
| 2017-04-11 | 15934419 | ND |
| 2017-07-07 | 16410716 | ND |
| 2018-04-10 | 2308353001 | ND |