Alachlor (Lasso)
Golden State Water Company (GSWC) - Claremont
Alachlor is a widely used agricultural herbicide. It causes cancer in laboratory animals and may be carcinogenic to people.
13
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 |
|---|---|---|---|---|
| 2014 | ND | 2 | 0 | ND |
| 2015 | ND | 2 | 0 | ND |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | ND | 3 | 0 | ND |
| 2018 | ND | 6 | 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
| Date | Lab ID | Result |
|---|---|---|
| 2014-09-29 | 2706-010-1215 | ND |
| 2014-11-04 | 2706-030-1218 | ND |
| 2015-05-19 | 2706-039-1143 | ND |
| 2015-08-18 | 2706-039-1020 | ND |
| 2017-05-18 | 9590-024-1210 | ND |
| 2017-05-19 | 9590-024-1145 | ND |
| 2017-08-16 | 9590-024-0944 | ND |
| 2018-05-22 | 9590-039-1015 | ND |
| 2018-05-22 | 9590-040-0932 | ND |
| 2018-08-14 | 9590-019-1010 | ND |
| 2018-08-22 | 9590-010-1030 | ND |
| 2018-08-22 | 9590-039-1113 | ND |
| 2018-08-22 | 9590-040-1157 | ND |