Metolachlor
St. Louis City
Metolachlor is a herbicide applied on corn, soybeans and other crops. The EPA has classified metolachlor as a possible human carcinogen.
18
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 |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | ND | 2 | 0 | ND |
| 2015 | 0.200 ppb | 4 | 2 | ND - 0.450 ppb |
| 2016 | 0.970 ppb | 2 | 2 | 0.560 ppb - 1.38 ppb |
| 2017 | 0.280 ppb | 6 | 3 | ND - 0.740 ppb |
| 2018 | ND | 2 | 0 | ND |
| 2019 | 0.400 ppb | 2 | 2 | 0.360 ppb - 0.440 ppb |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-06-02 | AC23739 | ND |
| 2014-06-02 | AC23738 | ND |
| 2015-03-17 | AC44661 | ND |
| 2015-03-17 | AC44660 | ND |
| 2015-06-01 | AC47107 | 0.350 ppb |
| 2015-06-01 | AC47106 | 0.450 ppb |
| 2016-06-06 | AC75865 | 0.560 ppb |
| 2016-06-06 | AC75864 | 1.38 ppb |
| 2017-05-19 | AC98045 | 0.350 ppb |
| 2017-05-19 | AC98044 | ND |
| 2017-06-21 | AC99039 | 0.740 ppb |
| 2017-06-21 | AC99038 | 0.590 ppb |
| 2017-09-11 | AD07442 | ND |
| 2017-09-11 | AD07443 | ND |
| 2018-05-21 | AD20859 | ND |
| 2018-05-21 | AD20860 | ND |
| 2019-05-28 | AD47824 | 0.360 ppb |
| 2019-05-28 | AD47825 | 0.440 ppb |