1,4-Dioxane
Norman
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 | ND | 52 | 0 | ND |
2014 | ND | 2 | 0 | ND |
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 |
---|---|---|
2013-04-08 | 713272-8632 | ND |
2013-04-08 | 713229-8585 | ND |
2013-04-08 | 713248-8585 | ND |
2013-04-08 | 713324-8632 | ND |
2013-04-08 | 713266-8585 | ND |
2013-04-08 | 713289-8632 | ND |
2013-04-08 | 713252-8585 | ND |
2013-04-08 | 713268-8585 | ND |
2013-04-08 | 713250-8585 | ND |
2013-04-08 | 713225-8585 | ND |
2013-04-08 | 713227-8585 | ND |
2013-04-08 | 713328-8632 | ND |
2013-04-08 | 713242-8585 | ND |
2013-04-08 | 713262-8585 | ND |
2013-04-08 | 713270-8585 | ND |
2013-04-08 | 713258-8585 | ND |
2013-04-08 | 713322-8632 | ND |
2013-04-08 | 713235-8585 | ND |
2013-04-08 | 713308-8632 | ND |
2013-04-08 | 713316-8632 | ND |
2013-04-08 | 713254-8585 | ND |
2013-04-08 | 713304-8632 | ND |
2013-04-08 | 713314-8632 | ND |
2013-04-08 | 713196-8585 | ND |
2013-04-08 | 713199-8585 | ND |
2013-08-14 | 738328-9674 | ND |
2013-08-14 | 738327-9674 | ND |
2013-10-16 | 753429-10160 | ND |
2013-10-16 | 753378-10154 | ND |
2013-10-16 | 753346-10154 | ND |
2013-10-16 | 753427-10160 | ND |
2013-10-16 | 753511-10160 | ND |
2013-10-16 | 753382-10154 | ND |
2013-10-16 | 753350-10154 | ND |
2013-10-16 | 753509-10160 | ND |
2013-10-16 | 753410-10154 | ND |
2013-10-16 | 753386-10154 | ND |
2013-10-16 | 753423-10160 | ND |
2013-10-16 | 753754-10160 | ND |
2013-10-16 | 753421-10160 | ND |
2013-10-16 | 753348-10154 | ND |
2013-10-16 | 753380-10154 | ND |
2013-10-16 | 753397-10154 | ND |
2013-10-16 | 753399-10154 | ND |
2013-10-16 | 753401-10154 | ND |
2013-10-16 | 753418-10154 | ND |
2013-10-16 | 753384-10154 | ND |
2013-10-16 | 753413-10154 | ND |
2013-10-16 | 753352-10154 | ND |
2013-10-16 | 753416-10154 | ND |
2013-10-16 | 753513-10160 | ND |
2013-10-16 | 753425-10160 | ND |
2014-02-11 | 770264-10747 | ND |
2014-02-11 | 770224-10747 | ND |