Alachlor (Lasso)
Eastern Municipal Water District
NOTE: Eastern Municipal Water District purchases water from Metropolitan Water District of So. Cal. which is required to test for alachlor (lasso). Sample information shown below was taken by Metropolitan Water District of So. Cal..
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 |
|---|---|---|---|---|
| 2018 | ND | 2 | 0 | ND |
| 2019 | ND | 3 | 0 | ND |
| 2020 | ND | 3 | 0 | ND |
| 2021 | ND | 2 | 0 | ND |
| 2022 | ND | 2 | 0 | ND |
| 2023 | ND | 4 | 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
NOTE: Eastern Municipal Water District purchases water from Metropolitan Water District of So. Cal. which is required to test for alachlor (lasso). Sample information shown below was taken by Metropolitan Water District of So. Cal..
| Date | Lab ID | Result |
|---|---|---|
| 2018-04-02 | CA1910087_003_003-201804021344 | ND |
| 2018-04-02 | CA1910087_005_005-201804021229 | ND |
| 2018-04-02 | CA1910087_020_020-201804021124 | ND |
| 2018-04-03 | CA1910087_026_026-201804031528 | ND |
| 2018-04-09 | CA1910087_013_013-201804090805 | ND |
| 2018-10-01 | CA1910087_020_020-201810011015 | ND |
| 2018-10-01 | CA1910087_003_003-201810011140 | ND |
| 2018-10-02 | CA1910087_005_005-201810021115 | ND |
| 2018-10-02 | CA1910087_013_013-201810021010 | ND |
| 2018-10-02 | CA1910087_026_026-201810020950 | ND |
| 2021-04-05 | CA1910087_005_005-202104050720 | ND |
| 2021-04-05 | CA1910087_020_020-202104051100 | ND |
| 2021-04-05 | CA1910087_003_003-202104050701 | ND |
| 2021-04-06 | CA1910087_026_026-202104060904 | ND |
| 2021-04-06 | CA1910087_013_013-202104060715 | ND |
| 2021-08-03 | CA1910087_003_003-202108030650 | ND |
| 2021-08-03 | CA1910087_020_020-202108031015 | ND |
| 2021-08-03 | CA1910087_005_005-202108030907 | ND |
| 2021-08-03 | CA1910087_013_013-202108031015 | ND |
| 2021-08-03 | CA1910087_026_026-202108030845 | ND |