Know Your Environment. Protect Your Health.

Methoxychlor

City of Arp

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.

 

11

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
2019ND20ND
2020N/A00N/A
2021N/A00N/A
2022ND50ND
2023ND40ND

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
2019-03-20Q1911657001ND
2019-03-20Q1911657003ND
2022-03-30Q2209980001ND
2022-03-30Q2209980002ND
2022-05-24Q2215040001ND
2022-09-15Q2227707001ND
2022-11-17Q2234636001ND
2023-03-28Q2311409001ND
2023-06-01Q2320524001ND
2023-08-03Q2331692001ND
2023-10-11Q2343423001ND