Alachlor (Lasso)
Portland Water Bureau
Alachlor is a widely used agricultural herbicide. It causes cancer in laboratory animals and may be carcinogenic to people.
8
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 | 3 | 0 | ND |
| 2015 | ND | 1 | 0 | ND |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | ND | 3 | 0 | ND |
| 2018 | ND | 1 | 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 |
|---|---|---|
| 2014-04-08 | BB38036-S | ND |
| 2014-07-08 | BB42035-S | ND |
| 2014-08-26 | K1409156001-S | ND |
| 2015-06-17 | K1506612001-S | ND |
| 2017-04-04 | BB87017-S | ND |
| 2017-08-08 | BB92723-S | ND |
| 2017-09-07 | BB93991-S | ND |
| 2018-03-15 | BC03118-S | ND |