Know Your Environment. Protect Your Health.

Methoxychlor

Arizona Water Company - Sierra Vista

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.

 

30

Samples

0

Samples exceeding legal limit (MCL)

2

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND140ND
2019N/A00N/A
2020N/A00N/A
20210.0369 ppb162ND - 0.470 ppb
2022N/A00N/A
2023N/A00N/A

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
2018-01-23201801240105SND
2018-01-23201801240106SND
2018-01-23201801240107SND
2018-01-23201801240108SND
2018-01-23201801240109SND
2018-01-23201801240110SND
2018-01-23201801240104SND
2018-07-25201807250643SND
2018-07-25201807250647SND
2018-07-25201807250646SND
2018-07-25201807250645SND
2018-07-25201807250644SND
2018-07-25201807250636SND
2018-07-25201807250635SND
2021-05-2021E2311-02 SOCND
2021-05-2021E2311-07SOCND
2021-05-2021E2311-06SOCND
2021-05-2021E2311-05SOCND
2021-05-2021E2311-04 SOCND
2021-05-2021E2311-03 SOCND
2021-05-2021E2311-01 SOCND
2021-11-1621K2237-010.470 ppb
2021-11-1621K2237-02ND
2021-11-1621K2237-030.120 ppb
2021-11-1721K2431-01ND
2021-11-1721K2431-02ND
2021-11-1721K2431-03ND
2021-11-1721K2431-04ND
2021-12-0821L1169-01ND
2021-12-2221L2776-01ND