1,4-Dioxane
City of Banning
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 | 41 | 0 | ND |
2014 | N/A | 0 | 0 | N/A |
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 |
---|---|---|
2013-01-09 | B3A0840-03A | ND |
2013-01-09 | B3A0840-07A | ND |
2013-01-09 | B3A0840-05A | ND |
2013-01-09 | B3A0840-09A | ND |
2013-01-09 | B3A0840-11 | ND |
2013-01-09 | B3A0840-01 | ND |
2013-01-16 | B3A1607-11A | ND |
2013-01-16 | B3A1607-03A | ND |
2013-01-16 | B3A1607-01A | ND |
2013-01-16 | B3A1607-07A | ND |
2013-01-16 | B3A1607-13A | ND |
2013-01-16 | B3A1607-09A | ND |
2013-01-16 | B3A1607-05A | ND |
2013-01-23 | B3A2295-01A | ND |
2013-01-23 | B3A2295-05A | ND |
2013-01-23 | B3A2295-07A | ND |
2013-01-23 | B3A2295-09A | ND |
2013-01-23 | B3A2295-03A | ND |
2013-02-06 | B3B0498-05 | ND |
2013-02-06 | B3B0498-03A | ND |
2013-02-06 | B3B0498-01A | ND |
2013-07-09 | B3G0863-09 | ND |
2013-07-09 | B3G0863-07 | ND |
2013-07-09 | B3G0863-05 | ND |
2013-07-09 | B3G0863-03 | ND |
2013-07-09 | B3G0863-01 | ND |
2013-07-09 | B3G1075-03 | ND |
2013-07-10 | B3G1075-07 | ND |
2013-07-10 | B3G1075-01 | ND |
2013-07-10 | B3G1075-05 | ND |
2013-07-16 | B3G1566-07 | ND |
2013-07-16 | B3G1566-05 | ND |
2013-07-16 | B3G1566-01 | ND |
2013-07-16 | B3G1566-03 | ND |
2013-07-16 | B3G1566-09 | ND |
2013-07-23 | B3G2265-07 | ND |
2013-07-23 | B3G2265-01 | ND |
2013-07-23 | B3G2265-05 | ND |
2013-07-23 | B3G2265-09 | ND |
2013-07-23 | B3G2265-03 | ND |
2013-10-03 | B3J0384-01 | ND |