Know Your Environment. Protect Your Health.

1,4-Dioxane

Arlington Water Department

NOTE: Arlington Water Department purchases water from SNO PUD 1 - Lake Stevens which is required to test for 1,4-dioxane. Sample information shown below was taken by SNO PUD 1 - Lake Stevens.

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.

 

6

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND80ND
2014ND20ND
2015N/A00N/A
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

NOTE: Arlington Water Department purchases water from SNO PUD 1 - Lake Stevens which is required to test for 1,4-dioxane. Sample information shown below was taken by SNO PUD 1 - Lake Stevens.

Date Lab ID Result
2014-01-22WA97-SE1-14-01298-3400ND
2014-04-15WA97-SE2-14-06585-15943ND
2014-04-1697-SE1-14-06586-15945ND
2014-07-22WA97-SE3-14-13616-31731ND
2014-10-27WA97-SE4-14-21143-47786ND
2014-10-28WA98-SE2-14-21311-48224ND