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EWG's Tap Water Database — 2019 UPDATE

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Methoxychlor

Carson City Public Works

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.

 

125

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND500ND
2013ND90ND
2014ND60ND
2015ND470ND
2016ND20ND
2017ND110ND

ppb = parts per billion

State and national drinking water standards and health guidelines

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
2012-06-18201206210179-SND
2012-06-18201206210173-SND
2012-06-18201206210177-SND
2012-06-18201206210181-SND
2012-06-18201206210175-SND
2012-06-182012-6210171-SND
2012-06-19201206210314-SND
2012-06-1920120622025-SND
2012-06-19201206220012-SND
2012-06-19201206220010-SND
2012-06-21201206220323-SND
2012-06-21201206220321-SND
2012-06-25201206270438-SND
2012-06-252012-6270436-SND
2012-06-25201206270510-SND
2012-06-25201206270244-SND
2012-06-25201206270216-SND
2012-06-25201206270434-SND
2012-06-25201206270444-SND
2012-07-11201207130064-SND
2012-07-12201207140141-SND
2012-07-12201207140139-SND
2012-08-07201208100589-SND
2012-08-07201208100440-SND
2012-08-08201208100442-SND
2012-08-08201208100396-SND
2012-08-15201208170343-SND
2012-08-15201208170498-SND
2012-08-27201208300178-SND
2012-08-27201208300180-SND
2012-08-27201208300158-SND
2012-09-11201209130775-SND
2012-09-11201209130771-SND
2012-09-11201209130773-SND
2012-09-11201209130709-SND
2012-09-12201209130715-SND
2012-09-12201209140297-SND
2012-09-12201209150006-SND
2012-09-12201209150004-SND
2012-09-12201209150030-SND
2012-09-12201209150221-SND
2012-09-18201209200727-SND
2012-09-18201209200453-SND
2012-09-19201209200729-SND
2012-10-01201210020385-SND
2012-10-01201210020301-SND
2012-10-02201210040117-SND
2012-10-02201210030297-SND
2012-10-22201210230058-SND
2012-11-13201211150453-SND
2013-05-13201305140672-SND
2013-06-18201306190582-SND
2013-06-26201306270194-SND
2013-07-18201307200001-SND
2013-07-23201307240749ND
2013-09-09201309100461-SND
2013-09-24201309250203-SND
2013-09-25201309260254-SND
2013-09-30201310010188-SND
2014-02-24201402260926-SND
2014-05-27201405280593-SND
2014-05-27201405280345ND
2014-07-30201407310297ND
2014-08-06201408070473ND
2014-08-06201408070556ND
2015-05-19201505210392ND
2015-05-19201505210480ND
2015-05-19201505210341ND
2015-05-19201505210388ND
2015-05-20201505210403ND
2015-05-20201505210412ND
2015-05-20201505210405ND
2015-05-21201505220242ND
2015-05-21201505220202ND
2015-05-21201505220247ND
2015-06-01201506030407ND
2015-06-01201506030355ND
2015-06-01201506030247ND
2015-06-01201506030333ND
2015-06-09201506120280ND
2015-06-09201506120278ND
2015-06-11201506120209ND
2015-06-11201506120140ND
2015-06-29201506300124-SOCND
2015-06-29201506300177-SOCND
2015-06-30201507010430ND
2015-06-30201507160442ND
2015-08-04201508050421ND
2015-08-11201508130514ND
2015-08-11201508130887ND
2015-08-12201508130840ND
2015-08-12201508130715ND
2015-08-12201508130550ND
2015-08-13201508140374ND
2015-08-13201508140330ND
2015-08-13201508140232ND
2015-08-19201508200673ND
2015-08-19201508200613ND
2015-08-19201508200389ND
2015-08-27201508280218ND
2015-09-01201509030305ND
2015-09-01201509030285ND
2015-09-01201509030215ND
2015-09-23201509250297ND
2015-09-23201509250228ND
2015-09-23201509250220ND
2015-09-23201509250224ND
2015-09-24201509250171ND
2015-09-24201509250185ND
2015-09-24201509250183ND
2015-10-06201510070375ND
2015-10-13201510140575ND
2016-06-22201606230265-SOCND
2016-10-11201610121069ND
2017-05-15201705160571ND
2017-05-16201705170782ND
2017-06-13201706140424ND
2017-06-21201706220614ND
2017-07-25201707260764ND
2017-08-01201708021373ND
2017-08-29201708300722ND
2017-08-29201708300813ND
2017-08-29201708300644ND
2017-10-04201710050218ND
2017-10-04201710050544ND