Alachlor (Lasso)
City Of Rio Vista
Alachlor is a widely used agricultural herbicide. It causes cancer in laboratory animals and may be carcinogenic to people.
14
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 | N/A | 0 | 0 | N/A |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | ND | 3 | 0 | ND |
| 2017 | ND | 3 | 0 | ND |
| 2018 | ND | 6 | 0 | ND |
| 2019 | ND | 2 | 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 |
|---|---|---|
| 2016-12-05 | 5867-004-0900 | ND |
| 2016-12-05 | 5867-005-1023 | ND |
| 2016-12-15 | 5867-001-1057 | ND |
| 2017-05-04 | 5867-016-1037 | ND |
| 2017-09-12 | 5867-016-1220 | ND |
| 2017-12-07 | 5867-016-1115 | ND |
| 2018-03-05 | 5867-016-1225 | ND |
| 2018-03-26 | 5867-003-1025 | ND |
| 2018-03-26 | 5867-015-0935 | ND |
| 2018-04-02 | 5867-007-1115 | ND |
| 2018-04-02 | 5867-014-1040 | ND |
| 2018-06-04 | 5867-016-1155 | ND |
| 2019-12-02 | 5867-004-1215 | ND |
| 2019-12-02 | 5867-005-1245 | ND |