Know Your Environment. Protect Your Health.

Methoxychlor

Clayton Water Supply Corporation Plant 2

NOTE: Clayton Water Supply Corporation Plant 2 purchases water from City of Carthage which is required to test for methoxychlor. Sample information shown below was taken by City of Carthage.

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.

 

6

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND10ND
2020ND10ND
2021ND10ND
2022ND10ND
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

NOTE: Clayton Water Supply Corporation Plant 2 purchases water from City of Carthage which is required to test for methoxychlor. Sample information shown below was taken by City of Carthage.

Date Lab ID Result
2018-02-14Q1806322001ND
2019-02-05Q1905209002ND
2020-03-11Q2010299001ND
2021-02-24Q2104964001ND
2022-01-26Q2202696001ND
2023-02-13Q2305514002ND