Alachlor (Lasso)
Arizona Water Company - Sierra Vista
Alachlor is a widely used agricultural herbicide. It causes cancer in laboratory animals and may be carcinogenic to people.
29
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 | 14 | 0 | ND |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | 0.0313 ppb | 15 | 1 | ND - 0.470 ppb |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | N/A | 0 | 0 | N/A |
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 |
|---|---|---|
| 2018-01-23 | 201801240105S | ND |
| 2018-01-23 | 201801240106S | ND |
| 2018-01-23 | 201801240107S | ND |
| 2018-01-23 | 201801240108S | ND |
| 2018-01-23 | 201801240109S | ND |
| 2018-01-23 | 201801240110S | ND |
| 2018-01-23 | 201801240104S | ND |
| 2018-07-25 | 201807250636S | ND |
| 2018-07-25 | 201807250647S | ND |
| 2018-07-25 | 201807250646S | ND |
| 2018-07-25 | 201807250645S | ND |
| 2018-07-25 | 201807250644S | ND |
| 2018-07-25 | 201807250643S | ND |
| 2018-07-25 | 201807250635S | ND |
| 2021-05-20 | 21E2311-01 SOC | ND |
| 2021-05-20 | 21E2311-07SOC | ND |
| 2021-05-20 | 21E2311-06SOC | ND |
| 2021-05-20 | 21E2311-05SOC | ND |
| 2021-05-20 | 21E2311-03 SOC | ND |
| 2021-05-20 | 21E2311-02 SOC | ND |
| 2021-11-16 | 21K2237-01 | 0.470 ppb |
| 2021-11-16 | 21K2237-02 | ND |
| 2021-11-16 | 21K2237-03 | ND |
| 2021-11-17 | 21K2431-01 | ND |
| 2021-11-17 | 21K2431-02 | ND |
| 2021-11-17 | 21K2431-03 | ND |
| 2021-11-17 | 21K2431-04 | ND |
| 2021-12-08 | 21L1169-01 | ND |
| 2021-12-22 | 21L2776-01 | ND |