Alachlor (Lasso)
City of Horseshoe Bay
Alachlor is a widely used agricultural herbicide. It causes cancer in laboratory animals and may be carcinogenic to people.
15
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 | 2 | 0 | ND |
| 2015 | ND | 4 | 0 | ND |
| 2016 | ND | 3 | 0 | ND |
| 2017 | ND | 2 | 0 | ND |
| 2018 | ND | 2 | 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 |
|---|---|---|
| 2014-01-30 | AC40768 | ND |
| 2014-01-30 | AC40766 | ND |
| 2015-05-06 | AC90860 | ND |
| 2015-05-06 | AC90859 | ND |
| 2015-09-24 | AD08618 | ND |
| 2015-10-19 | AD11083 | ND |
| 2016-01-27 | AD20521 | ND |
| 2016-04-14 | AD33292 | ND |
| 2016-04-14 | AD33293 | ND |
| 2017-02-13 | AD70505 | ND |
| 2017-04-19 | AD80246 | ND |
| 2018-04-18 | AE23087 | ND |
| 2018-07-05 | AE32481 | ND |
| 2019-01-24 | AE51373 | ND |
| 2019-04-25 | AE63813 | ND |