Know Your Environment. Protect Your Health.

1,4-Dioxane

Montclair Condominiums

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.

 

24

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019N/A00N/A
2020N/A00N/A
20210.0123 ppb121ND - 0.147 ppb
2022ND80ND
2023ND40ND

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
2021-02-16L2107749-01ND
2021-02-16L2107749-04ND
2021-02-16L2107749-050.147 ppb
2021-02-16L2107749-03ND
2021-04-02L2117370-01ND
2021-05-03L2122957-03ND
2021-05-03L2122957-01ND
2021-05-03L2122957-07ND
2021-05-03L2122957-05ND
2021-09-10L2149696-01ND
2021-09-10L2149695-01ND
2021-11-01L2160510-01ND
2022-06-08BD04493-XND
2022-09-1422I0866-01ND
2022-12-1422L0982-12ND
2022-12-14S000102011ND
2022-12-1422L0982-09ND
2022-12-1422L0982-11ND
2022-12-1422L0982-10ND
2022-12-2122L1211-06ND
2023-03-1623C1103-01ND
2023-10-24GS01378ND
2023-10-24GS01336ND
2023-10-31GS01345ND