Toxaphene
Middletown Water Department
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 |
|---|---|---|---|---|
| 2018 | ND | 5 | 0 | ND |
| 2019 | ND | 1 | 0 | ND |
| 2020 | ND | 1 | 0 | ND |
| 2021 | ND | 5 | 0 | ND |
| 2022 | ND | 1 | 0 | ND |
| 2023 | ND | 1 | 0 | ND |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
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 |
|---|---|---|
| 2018-03-01 | SOCR 200489003 | ND |
| 2018-03-28 | SOC 200490769 | ND |
| 2018-04-16 | SOC 200492153 | ND |
| 2018-08-07 | SOC 200501550 | ND |
| 2018-08-07 | SOC 200501551 | ND |
| 2019-05-21 | SOCR 200533085 | ND |
| 2020-05-06 | SOCR 200574726 | ND |
| 2021-04-07 | SOCR 200612107 | ND |
| 2021-05-26 | SOC 200618555 | ND |
| 2021-05-26 | SOC 200618557 | ND |
| 2021-08-26 | SOC 200629911 | ND |
| 2021-08-26 | SOC 200629912 | ND |
| 2022-05-11 | H300182528 300209355 | ND |
| 2023-06-23 | H300370775 300370776 | ND |