Alachlor (Lasso)
California Water Service (CWS) - King City
Alachlor is a widely used agricultural herbicide. It causes cancer in laboratory animals and may be carcinogenic to people.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2013 | N/A | 0 | 0 | N/A |
2014 | N/A | 0 | 0 | N/A |
2015 | N/A | 0 | 0 | N/A |
2016 | ND | 3 | 0 | ND |
2017 | ND | 3 | 0 | ND |
2018 | N/A | 0 | 0 | N/A |
2019 | ND | 10 | 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 |
---|---|---|
2016-03-07 | 9590-012-1143 | ND |
2016-04-20 | 9590-006-1042 | ND |
2016-09-20 | 9590-007-1117 | ND |
2017-06-06 | 9590-014-1138 | ND |
2017-06-06 | 9590-015-1105 | ND |
2017-06-07 | 9590-008-1117 | ND |
2019-03-06 | 9590-012-1227 | ND |
2019-04-17 | 9590-006-1140 | ND |
2019-06-03 | 9590-014-0940 | ND |
2019-06-03 | 9590-015-1035 | ND |
2019-06-04 | 9590-008-1026 | ND |
2019-09-09 | 9590-007-1120 | ND |
2019-10-21 | 9590-803-1009 | ND |
2019-10-21 | 9590-804-1125 | ND |
2019-10-22 | 9590-801-1038 | ND |
2019-10-22 | 9590-802-1127 | ND |