Alachlor (Lasso)
Middlesex Water System
Alachlor is a widely used agricultural herbicide. It causes cancer in laboratory animals and may be carcinogenic to people.
19
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 | 0.175 ppb | 4 | 1 | ND - 0.700 ppb |
| 2015 | ND | 3 | 0 | ND |
| 2016 | ND | 6 | 0 | ND |
| 2017 | ND | 2 | 0 | ND |
| 2018 | ND | 1 | 0 | ND |
| 2019 | ND | 3 | 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 |
|---|---|---|
| 2014-01-23 | 8715-012314-005S | 0.700 ppb |
| 2014-04-09 | 8715-040914-005S | ND |
| 2014-08-20 | 8715-082014-005S | ND |
| 2014-10-08 | 8715-100814-005S | ND |
| 2015-03-12 | ND | |
| 2015-06-16 | ND | |
| 2015-08-24 | ND | |
| 2016-04-06 | 8715-040616-004S | ND |
| 2016-04-06 | 8715-040616-005S | ND |
| 2016-04-06 | 8715-040616-002S | ND |
| 2016-04-06 | 8715-040616-001S | ND |
| 2016-07-21 | 8715-072116-005S | ND |
| 2016-10-10 | 8715-101016-005S | ND |
| 2017-01-11 | 8715-011117-005S | ND |
| 2017-04-11 | 8715-041117-005S | ND |
| 2018-04-03 | 8715-040318-005S | ND |
| 2019-06-25 | 68650-01 | ND |
| 2019-12-17 | 76213-01 | ND |
| 2019-12-17 | 76214-01 | ND |