Know Your Environment. Protect Your Health.

1,4-Dioxane

Fort Plain

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.

 

23

Samples

0

Samples exceeding legal limit (MCL)

3

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014N/A00N/A
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A
20200.169 ppb21ND - 0.338 ppb
20210.132 ppb73ND - 0.352 ppb
20220.122 ppb114ND - 0.374 ppb
20230.252 ppb32ND - 0.500 ppb

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
2020-12-07JH2009463-PFOA0.338 ppb
2020-12-07JH2009467-PFOAND
2021-01-11JH2100224-PFOAND
2021-02-12JH2101155-PFOA0.352 ppb
2021-03-01JH2101580-PFOA0.331 ppb
2021-03-01JH2107581-PFOAND
2021-07-12JH2105662-PFOAND
2021-09-08JH2108152-PFOA0.238 ppb
2021-10-04JH2109049-PFASND
2022-02-28JH2201523-DIOXANEND
2022-03-07JH2201733-DIOXANE0.350 ppb
2022-03-07JH2201734-DIOXANE0.374 ppb
2022-05-02JH2203202-DIOXANE0.349 ppb
2022-05-02JH2203200-DIOXANE0.271 ppb
2022-05-02JH2203201-DIOXANEND
2022-08-01JH2206104-DIOXANEND
2022-08-01JH2206102-DIOXANEND
2022-08-01JH2206103-DIOXANEND
2022-11-07JH2209520-DIOXANEND
2022-11-07JH2209519-DIOXANEND
2023-04-17JH2302706-DIOXANE0.255 ppb
2023-09-14JH2308001-DIOXANE0.500 ppb
2023-11-21JH2308987-DIOXANEND