Know Your Environment. Protect Your Health.

Methoxychlor

Bryan County Rural Water District #9

Methoxychlor is an endocrine-disrupting, neurotoxic insecticide similar to DDT. Banned in the U.S. in 2002, methoxychlor was historically used on farm animals and in animal feed, lumber, gardens and agricultural crops.

 

29

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019N/A00N/A
2020ND110ND
2021ND120ND
2022ND50ND
2023ND10ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.09 ppb

The EWG Health Guideline of 0.09 ppb for methoxychlor 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 hormone disruption.

EPA Maximum Contaminant
Level (MCL): 40 ppb

The legal limit for methoxychlor, established in 1991, was based on a toxicity study in laboratory animals conducted in the 1980s.

ppb = parts per billion

All test results

Date Lab ID Result
2020-03-02SDWA-1470054-00ND
2020-03-02SDWA-1470003-00ND
2020-03-02SDWA-1470004-00ND
2020-03-02SDWA-1470005-00ND
2020-09-01SDWA-1516075-00ND
2020-09-01SDWA-1516099-00ND
2020-09-01SDWA-1516100-00ND
2020-09-01SDWA-1516101-00ND
2020-12-01SDWA-1531060-00ND
2020-12-01SDWA-1531059-00ND
2020-12-01SDWA-1531061-00ND
2021-02-02SDWA-1553587-00ND
2021-02-02SDWA-1553586-00ND
2021-02-02SDWA-1553585-00ND
2021-05-12SDWA-1576166-00ND
2021-05-12SDWA-1576138-00ND
2021-06-30SDWA-1608691-00ND
2021-09-09SDWA-1603648-00ND
2021-09-09SDWA-1603650-00ND
2021-09-09SDWA-1603649-00ND
2021-11-02SDWA-1641422-00ND
2021-11-02SDWA-1641421-00ND
2021-12-27SDWA-1662736-00ND
2022-03-07SDWA-1674251-00ND
2022-04-20SDWA-1684773-00ND
2022-04-20SDWA-1684800-00ND
2022-04-20SDWA-1684824-00ND
2022-04-20SDWA-1684848-00ND
2023-12-15SDWA-1859120-00ND