Alachlor (Lasso)
Terra Bella Irrigation District - Tbt
Alachlor is a widely used agricultural herbicide. It causes cancer in laboratory animals and may be carcinogenic to people.
37
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 |
|---|---|---|---|---|
| 2018 | ND | 9 | 0 | ND |
| 2019 | ND | 9 | 0 | ND |
| 2020 | ND | 3 | 0 | ND |
| 2021 | ND | 11 | 0 | ND |
| 2022 | ND | 3 | 0 | ND |
| 2023 | ND | 2 | 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
| Date | Lab ID | Result |
|---|---|---|
| 2018-09-24 | CA5410038_016_016-201809241335 | ND |
| 2018-09-24 | CA5410038_020_020-201809241342 | ND |
| 2018-09-24 | CA5410038_027_027-201809241445 | ND |
| 2018-09-24 | CA5410038_024_024-201809241415 | ND |
| 2018-09-24 | CA5410038_032_032-201809241300 | ND |
| 2018-09-24 | CA5410038_002_002-201809241345 | ND |
| 2018-09-24 | CA5410038_009_009-201809241354 | ND |
| 2018-12-27 | CA5410038_032_032-201812271200 | ND |
| 2018-12-27 | CA5410038_027_027-201812271250 | ND |
| 2019-02-26 | CA5410038_032_032-201902261152 | ND |
| 2019-02-26 | CA5410038_027_027-201902261318 | ND |
| 2019-05-10 | CA5410038_027_027-201905101310 | ND |
| 2019-05-10 | CA5410038_032_032-201905101155 | ND |
| 2019-08-29 | CA5410038_032_032-201908291208 | ND |
| 2019-08-29 | CA5410038_025_025-201908291300 | ND |
| 2019-08-29 | CA5410038_027_027-201908291340 | ND |
| 2019-11-21 | CA5410038_027_027-201911211338 | ND |
| 2019-11-21 | CA5410038_032_032-201911211158 | ND |
| 2020-08-27 | CA5410038_001_001-202008271300 | ND |
| 2020-08-31 | CA5410038_009_009-202008311210 | ND |
| 2020-12-29 | CA5410038_028_028-202012291250 | ND |
| 2021-02-19 | CA5410038_027_027-202102191215 | ND |
| 2021-02-19 | CA5410038_028_028-202102191125 | ND |
| 2021-02-19 | CA5410038_032_032-202102191100 | ND |
| 2021-05-27 | CA5410038_028_028-202105271235 | ND |
| 2021-09-13 | CA5410038_020_020-202109131152 | ND |
| 2021-09-13 | CA5410038_009_009-202109131205 | ND |
| 2021-09-13 | CA5410038_002_002-202109131158 | ND |
| 2021-09-13 | CA5410038_016_016-202109131140 | ND |
| 2021-09-13 | CA5410038_028_028-202109131325 | ND |
| 2021-09-13 | CA5410038_024_024-202109131244 | ND |
| 2021-11-15 | CA5410038_028_028-202111151325 | ND |
| 2022-03-29 | CA5410038_028_028-202203291115 | ND |
| 2022-09-19 | CA5410038_028_028-202209191305 | ND |
| 2022-09-19 | CA5410038_025_025-202209191232 | ND |
| 2023-07-24 | CA5410038_001_001-202307241220 | ND |
| 2023-12-04 | CA5410038_028_028-202312041315 | ND |