Toxaphene
Metropolitan District Commission
Toxaphene is a neurotoxic, persistent and bioaccumulative insecticide classified by the EPA as a probable human carcinogen.
Samples
Samples exceeding legal limit (MCL)
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 | 4 | 0 | ND |
| 2015 | ND | 10 | 0 | ND |
| 2016 | ND | 4 | 0 | ND |
| 2017 | ND | 4 | 0 | ND |
| 2018 | ND | 11 | 0 | ND |
| 2019 | ND | 4 | 0 | ND |
ppb = parts per billion
State and national drinking water standards and health guidelines
EWG Health Guideline 0.03 ppb
The EWG Health Guideline of 0.03 ppb for toxaphene was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer.
EPA Maximum Contaminant
Level (MCL) 3 ppb
The legal limit for toxaphene, established in 1991, was based on analytical detection limits at the time that the standard was set. This limit may not fully protect against the risk of cancer due to toxaphene exposure.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-06-25 | SOCR 200398586 | ND |
| 2014-06-25 | SOCR 200398587 | ND |
| 2014-06-25 | SOCR 200398588 | ND |
| 2014-06-25 | SOCR 200398585 | ND |
| 2015-07-16 | SOCR 200420505 | ND |
| 2015-07-16 | SOCR 200420506 | ND |
| 2015-07-16 | SOCR 200420502 | ND |
| 2015-07-16 | SOCR 200420501 | ND |
| 2015-07-30 | BJ65999SOC2 | ND |
| 2015-07-30 | BJ65997SOC2 | ND |
| 2015-07-30 | BJ65998SOC2 | ND |
| 2015-10-22 | BK12467SOC2 | ND |
| 2015-10-22 | BK12468SOC2 | ND |
| 2015-10-22 | BK12469SOC2 | ND |
| 2016-07-13 | SOCR 200444754 | ND |
| 2016-07-13 | SOCR 200444756 | ND |
| 2016-07-13 | SOCR 200444757 | ND |
| 2016-07-13 | SOCR 200444758 | ND |
| 2017-08-14 | SOCR 200474392 | ND |
| 2017-08-14 | SOCR 200474395 | ND |
| 2017-08-14 | SOCR 200474393 | ND |
| 2017-08-14 | SOCR 200474394 | ND |
| 2018-06-27 | CA79475 | ND |
| 2018-06-27 | CA79476 | ND |
| 2018-06-27 | CA79477 | ND |
| 2018-07-18 | SOCR 200500125 | ND |
| 2018-07-18 | SOCR 200500126 | ND |
| 2018-07-18 | SOCR 200500122 | ND |
| 2018-07-18 | SOCR 200500124 | ND |
| 2018-09-25 | CB38504 | ND |
| 2018-09-25 | CB38505R | ND |
| 2018-09-25 | CB38869 | ND |
| 2018-09-25 | CB38505 | ND |
| 2019-07-08 | SOCR 200539197 | ND |
| 2019-07-08 | SOCR 200539198 | ND |
| 2019-07-08 | SOCR 200539199 | ND |
| 2019-07-08 | SOCR 200539200 | ND |