1,4-Dioxane
Victorville Water District
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.
Samples
Samples exceeding legal limit (MCL)
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2013 | ND | 40 | 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 |
|---|---|---|
| 2013-02-07 | B3B0742-03A | ND |
| 2013-02-07 | B3B0742-05A | ND |
| 2013-02-07 | B3B0742-01A | ND |
| 2013-02-12 | B3B1220-01A | ND |
| 2013-02-12 | B3B1222-01A | ND |
| 2013-02-12 | B3B1221-01A | ND |
| 2013-02-14 | B3B1469-01A | ND |
| 2013-02-14 | B3B1471-01A | ND |
| 2013-02-26 | B3B2535-03A | ND |
| 2013-02-26 | B3B2535-01A | ND |
| 2013-02-26 | B3B2535-15A | ND |
| 2013-02-26 | B3B2535-07A | ND |
| 2013-02-26 | B3B2535-17A | ND |
| 2013-02-26 | B3B2535-13A | ND |
| 2013-02-26 | B3B2535-09A | ND |
| 2013-02-26 | B3B2535-05A | ND |
| 2013-02-26 | B3B2535-11A | ND |
| 2013-02-27 | B3B2664-01A | ND |
| 2013-02-28 | B3B2744-01A | ND |
| 2013-06-27 | B3F2922-01 | ND |
| 2013-08-01 | B3H0062-01 | ND |
| 2013-08-05 | B3H0329-05 | ND |
| 2013-08-05 | B3H0329-09 | ND |
| 2013-08-05 | B3H0329-01 | ND |
| 2013-08-05 | B3H0329-17 | ND |
| 2013-08-05 | B3H0329-13 | ND |
| 2013-08-07 | B3H0790-13 | ND |
| 2013-08-07 | B3H0790-05 | ND |
| 2013-08-07 | B3H0790-01 | ND |
| 2013-08-07 | B3H0790-09 | ND |
| 2013-08-13 | B3H1327-01 | ND |
| 2013-08-13 | B3H1327-09 | ND |
| 2013-08-13 | B3H1327-05 | ND |
| 2013-08-14 | B3H1478-05 | ND |
| 2013-08-14 | B3H1478-01 | ND |
| 2013-08-20 | B3H2077-01 | ND |
| 2013-08-21 | B3H2163-01 | ND |
| 2013-08-21 | B3H2163-13 | ND |
| 2013-08-21 | B3H2163-09 | ND |
| 2013-08-21 | B3H2163-05 | ND |