Know Your Environment. Protect Your Health.

Methoxychlor

Comanche Harbor & Port Ocall

NOTE: Comanche Harbor & Port Ocall purchases water from Acton MUD which is required to test for methoxychlor. Sample information shown below was taken by Acton MUD.

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.

 

57

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND100ND
2019ND20ND
2020ND70ND
2021ND110ND
2022ND20ND
2023ND50ND

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

NOTE: Comanche Harbor & Port Ocall purchases water from Acton MUD which is required to test for methoxychlor. Sample information shown below was taken by Acton MUD.

Date Lab ID Result
2018-03-28Q1812936024ND
2018-03-28Q1812936023ND
2018-03-28Q1812936028ND
2018-03-28Q1812936027ND
2018-03-28Q1812936025ND
2018-03-28Q1812936026ND
2018-05-01Q1817372011ND
2018-05-01Q1817372012ND
2018-05-01Q1817372013ND
2018-05-01Q1817372014ND
2019-01-10Q1901506004ND
2019-01-10Q1901506010ND
2019-03-26Q1912275045ND
2019-03-26Q1912275051ND
2019-03-26Q1912275050ND
2019-03-26Q1912275049ND
2019-03-26Q1912275048ND
2019-03-26Q1912275047ND
2019-03-26Q1912275046ND
2019-03-26Q1912275044ND
2019-03-26Q1912275043ND
2019-03-26Q1912275042ND
2019-03-26Q1912275041ND
2020-03-04Q2008205033ND
2020-03-04Q2008205034ND
2020-03-04Q2008205035ND
2020-03-04Q2008205036ND
2020-03-25Q2012703025ND
2020-07-29Q2029640009ND
2020-07-29Q2029640010ND
2021-02-09Q2103864001ND
2021-02-09Q2103864002ND
2021-02-09Q2103864003ND
2021-02-09Q2103864004ND
2021-02-09Q2103864005ND
2021-04-01Q2108342001ND
2021-04-01Q2108342004ND
2021-04-01Q2108342007ND
2021-04-01Q2108342010ND
2021-04-01Q2108342012ND
2021-07-22Q2119289001ND
2022-01-27Q2202897009ND
2022-01-27Q2202897004ND
2022-01-27Q2202897002ND
2022-10-06Q2230209009ND
2022-10-06Q2230209010ND
2022-10-06Q2230209011ND
2022-10-06Q2230209012ND
2022-10-06Q2230209013ND
2022-10-06Q2230209014ND
2022-10-06Q2230209015ND
2022-10-06Q2230209016ND
2023-10-18Q2344522027ND
2023-10-18Q2344522028ND
2023-11-14Q2348718028ND
2023-11-14Q2348718029ND
2023-11-14Q2348718030ND