1,4-Dioxane
Prattville
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 |
|---|---|---|---|---|
| 2014 | ND | 25 | 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 |
|---|---|---|
| 2014-06-24 | 3052131 | ND |
| 2014-06-24 | 3052185 | ND |
| 2014-06-24 | 3052315 | ND |
| 2014-06-24 | 3052070 | ND |
| 2014-06-24 | 3052113 | ND |
| 2014-06-24 | 3052198 | ND |
| 2014-06-25 | 3052867 | ND |
| 2014-06-25 | 3052960 | ND |
| 2014-06-25 | 3052951 | ND |
| 2014-06-25 | 3052821 | ND |
| 2014-06-25 | 3052830 | ND |
| 2014-06-25 | 3052918 | ND |
| 2014-09-29 | 3117463 | ND |
| 2014-12-16 | 3157133 | ND |
| 2014-12-16 | 3157256 | ND |
| 2014-12-16 | 3156900 | ND |
| 2014-12-16 | 3157274 | ND |
| 2014-12-16 | 3157379 | ND |
| 2014-12-16 | 3157342 | ND |
| 2014-12-18 | 3159429 | ND |
| 2014-12-18 | 3159281 | ND |
| 2014-12-18 | 3159399 | ND |
| 2014-12-18 | 3159412 | ND |
| 2014-12-18 | 3159390 | ND |
| 2014-12-18 | 3159241 | ND |