1,4-Dioxane
Ambler Boro Water Dept
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.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2013 | 0.0251 ppb | 11 | 3 | ND - 0.1000 ppb |
2014 | 0.0356 ppb | 11 | 4 | ND - 0.130 ppb |
2015 | N/A | 0 | 0 | N/A |
2016 | N/A | 0 | 0 | N/A |
2017 | N/A | 0 | 0 | N/A |
2018 | N/A | 0 | 0 | N/A |
2019 | N/A | 0 | 0 | N/A |
ppb = parts per billion
State and national drinking water standards and health guidelines
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 |
---|---|---|
2013-08-20 | 35105412007AM | 0.0820 ppb |
2013-08-20 | 35105412019AM | ND |
2013-08-20 | 35105412001AM | ND |
2013-08-20 | 35105412011AM | ND |
2013-08-20 | 35105412013AM | ND |
2013-08-20 | 35105412017AM | ND |
2013-08-20 | 35105412015AM | ND |
2013-08-20 | 35105412005AM | ND |
2013-08-20 | 35105412003AM | ND |
2013-09-05 | 35107359001AM | 0.0940 ppb |
2013-11-21 | 35117138001AM | 0.1000 ppb |
2014-02-20 | 35127363019AM | 0.130 ppb |
2014-02-20 | 35127363017AM | ND |
2014-02-20 | 35127363013AM | ND |
2014-02-20 | 35127363005AM | ND |
2014-02-20 | 35127363001AM | ND |
2014-02-20 | 35127363011AM | 0.0860 ppb |
2014-02-20 | 35127363003AM | ND |
2014-02-20 | 35127363015AM | 0.0880 ppb |
2014-02-20 | 35127363007AM | ND |
2014-02-20 | 35127363009AM | ND |
2014-05-28 | 35139814001AM | 0.0880 ppb |