Know Your Environment. Protect Your Health.

Methoxychlor

North Wales Water Authority

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.

 

34

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
2020ND200ND
2021N/A00N/A
2022N/A00N/A
2023ND140ND

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
2020-04-0122025475.00ND
2020-04-2022026080.00ND
2020-04-2022026170.00ND
2020-04-2022026110.00ND
2020-04-2022026140.00ND
2020-04-2722217302.00ND
2020-04-2722217272.00ND
2020-04-2722217332.00ND
2020-04-2722217392.00ND
2020-04-2722217362.00ND
2020-07-0622609699.00ND
2020-07-2722801139.00ND
2020-07-2722801185.00ND
2020-07-2722801109.00ND
2020-07-2722801199.00ND
2020-07-2722801079.00ND
2020-08-3123001501.00ND
2020-08-3123001473.00ND
2020-08-3123001417.00ND
2020-08-3123001445.00ND
2023-04-0328704916.00ND
2023-04-0328704919.00ND
2023-04-0328704920.00ND
2023-04-0328704918.00ND
2023-04-0328704917.00ND
2023-05-1028902331.00ND
2023-06-0529110377.00ND
2023-07-1029304274.00ND
2023-07-1029304273.00ND
2023-07-1029304268.00ND
2023-07-1029304271.00ND
2023-07-1129304269.00ND
2023-07-1129304272.00ND
2023-07-1129304270.00ND