1,4-Dioxane
Pompton Lakes Mua
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 | 0.403 ppb | 6 | 6 | 0.224 ppb - 0.528 ppb |
| 2014 | N/A | 0 | 0 | N/A |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | 0.343 ppb | 9 | 9 | 0.150 ppb - 0.490 ppb |
| 2018 | 0.340 ppb | 9 | 8 | ND - 0.580 ppb |
| 2019 | 0.351 ppb | 9 | 9 | 0.0700 ppb - 0.590 ppb |
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 |
|---|---|---|
| 2013-01-14 | 701366-8008 | 0.451 ppb |
| 2013-01-14 | 701368-8008 | 0.451 ppb |
| 2013-01-14 | 701360-8008 | 0.224 ppb |
| 2013-07-10 | 730555-8710 | 0.528 ppb |
| 2013-07-10 | 730559-8710 | 0.386 ppb |
| 2013-08-21 | 739406-9711 | 0.378 ppb |
| 2017-04-18 | 35359001 | 0.150 ppb |
| 2017-04-18 | 35358801 | 0.420 ppb |
| 2017-04-18 | 35358901 | 0.330 ppb |
| 2017-07-12 | 36184101 | 0.350 ppb |
| 2017-07-12 | 36184201 | 0.240 ppb |
| 2017-07-12 | 36184001 | 0.470 ppb |
| 2017-10-11 | 37314001 | 0.340 ppb |
| 2017-10-11 | 37313901 | 0.490 ppb |
| 2017-10-11 | 37314101 | 0.300 ppb |
| 2018-01-22 | 38308401 | 0.440 ppb |
| 2018-01-22 | 38308301 | 0.580 ppb |
| 2018-01-22 | 38308501 | 0.200 ppb |
| 2018-04-04 | 39160101 | 0.350 ppb |
| 2018-04-04 | 39160001 | 0.390 ppb |
| 2018-04-04 | 39160201 | 0.250 ppb |
| 2018-07-17 | 40391801 | 0.440 ppb |
| 2018-07-17 | 4017023 | 0.410 ppb |
| 2018-07-17 | 40391901 | ND |
| 2019-01-08 | 42464901 | 0.120 ppb |
| 2019-01-08 | 42464801 | 0.440 ppb |
| 2019-01-08 | 42464701 | 0.590 ppb |
| 2019-04-10 | 43593901 | 0.150 ppb |
| 2019-04-10 | 43593801 | 0.430 ppb |
| 2019-04-10 | 43594001 | 0.550 ppb |
| 2019-10-08 | 46793801 | 0.410 ppb |
| 2019-10-08 | 46793901 | 0.0700 ppb |
| 2019-10-08 | 46793701 | 0.400 ppb |