Know Your Environment. Protect Your Health.

1,4-Dioxane

City of Moses Lake

1,4-Dioxane is a solvent classified by the EPA as a likely human carcinogen. It contaminates groundwater in many states due to industrial wastewater discharges, plastic manufacturing runoff and landfill runoff. Read More.

Animal studies show that 1,4-dioxane can target the liver, kidneys and respiratory system, and that prenatal exposure can harm the developing fetus. The State of California has set a Public Heatlh Goal of no more than 1 part per billion of 1,4-dioxane in drinking water. The state of Massachusetts sets a legal limit of 0.3 ppb, and New Hampshire's limit is 3 parts per billion. There is no national drinking water standard for this contaminant.

Click here to read more about 1,4-dioxane.

 

26

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND220ND
2015ND40ND
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A
2020N/A00N/A
2021N/A00N/A
2022N/A00N/A
2023N/A00N/A

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.35 ppb

The EWG Health Guideline of 0.35 ppb for 1,4-dioxane was defined by the Environmental Protection Agency as a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.

ppb = parts per billion

All test results

Date Lab ID Result
2014-05-05201405060289AMND
2014-05-05201405060349AMND
2014-05-05201405060321AMND
2014-05-05201405060287AMND
2014-05-05201405060274AMND
2014-05-06201405070333AMND
2014-05-06201405070322AMND
2014-05-06201405070326AMND
2014-05-07201405080477AMND
2014-05-08201405090521AMND
2014-05-12201405130332AMND
2014-11-10201411120413AMND
2014-11-13201411150205AMND
2014-11-13201411150141AMND
2014-11-13201411150149AMND
2014-11-13201411150145AMND
2014-11-17201411180533AMND
2014-11-17201411180458AMND
2014-11-17201411180443AMND
2014-11-18201411190307AMND
2014-11-18201411190557AMND
2014-11-18201411190555AMND
2015-05-18201505190519AMND
2015-05-18201505190555AMND
2015-11-10201510300173AMND
2015-11-10201511110789AMND