1,4-Dioxane
Camp Pendleton (South)
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 | 3 | 0 | ND |
| 2014 | ND | 16 | 0 | ND |
| 2015 | 0.0667 ppb | 18 | 1 | ND - 1.20 ppb |
| 2016 | ND | 14 | 0 | ND |
| 2017 | ND | 17 | 0 | ND |
| 2018 | ND | 22 | 0 | ND |
| 2019 | ND | 21 | 0 | ND |
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 |
|---|---|---|
| 2013-11-13 | 201311140275AM | ND |
| 2013-11-22 | 201311230024AM | ND |
| 2013-11-26 | 201311260884AM | ND |
| 2014-01-29 | 9590-032-1115 | ND |
| 2014-02-13 | 9590-030-1115 | ND |
| 2014-04-23 | 9590-009-0944 | ND |
| 2014-04-23 | 9590-034-1115 | ND |
| 2014-04-24 | 9590-022-1115 | ND |
| 2014-04-28 | 9590-035-1210 | ND |
| 2014-05-19 | 201405190210AM | ND |
| 2014-05-21 | 201405220259AM | ND |
| 2014-05-23 | 201405240035AM | ND |
| 2014-06-11 | 9590-043-1140 | ND |
| 2014-06-12 | 9590-044-1220 | ND |
| 2014-06-24 | 9590-037-1100 | ND |
| 2014-07-09 | 9590-049-1030 | ND |
| 2014-07-17 | 9590-030-1140 | ND |
| 2014-10-28 | 9590-030-1115 | ND |
| 2014-11-06 | 9590-049-1155 | ND |
| 2015-01-16 | 9590-030-1035 | 1.20 ppb |
| 2015-01-21 | 9590-049-1315 | ND |
| 2015-03-13 | 9590-043-1336 | ND |
| 2015-03-13 | 9590-044-1310 | ND |
| 2015-03-16 | 9590-020-1220 | ND |
| 2015-03-16 | 9590-037-1250 | ND |
| 2015-03-18 | 9590-019-1050 | ND |
| 2015-03-18 | 9590-034-1242 | ND |
| 2015-03-19 | 9590-018-0800 | ND |
| 2015-05-12 | 9590-049-1135 | ND |
| 2015-05-20 | 9590-030-1000 | ND |
| 2015-05-29 | 9590-022-1030 | ND |
| 2015-07-24 | 9590-030-1020 | ND |
| 2015-08-13 | 9590-035-1046 | ND |
| 2015-08-24 | 9590-049-1145 | ND |
| 2015-08-24 | 9590-051-1230 | ND |
| 2015-10-14 | 9590-049-1120 | ND |
| 2015-10-15 | 9590-030-1215 | ND |
| 2016-01-13 | 9590-049-1230 | ND |
| 2016-02-19 | 9590-030-1050 | ND |
| 2016-04-21 | 9590-034-1236 | ND |
| 2016-04-21 | 9590-035-1205 | ND |
| 2016-04-26 | 9590-022-1105 | ND |
| 2016-04-26 | 9590-037-1220 | ND |
| 2016-04-27 | 9590-019-1248 | ND |
| 2016-04-28 | 9590-043-1145 | ND |
| 2016-04-28 | 9590-044-1102 | ND |
| 2016-05-03 | 9590-030-1200 | ND |
| 2016-05-05 | 9590-051-1045 | ND |
| 2016-05-12 | 9590-020-1130 | ND |
| 2016-08-08 | 9590-030-1130 | ND |
| 2016-11-01 | 9590-030-1115 | ND |
| 2017-01-09 | 9590-030-1140 | ND |
| 2017-03-09 | 9590-020-1115 | ND |
| 2017-03-09 | 9590-035-1150 | ND |
| 2017-03-09 | 9590-051-1230 | ND |
| 2017-03-17 | 9590-019-1146 | ND |
| 2017-03-17 | 9590-034-1240 | ND |
| 2017-03-17 | 9590-037-1115 | ND |
| 2017-03-23 | 9590-022-1250 | ND |
| 2017-03-30 | 9590-043-1135 | ND |
| 2017-03-30 | 9590-044-1115 | ND |
| 2017-05-11 | 9590-030-1245 | ND |
| 2017-07-13 | 9590-030-1300 | ND |
| 2017-07-21 | 9590-049-1310 | ND |
| 2017-12-04 | 9590-030-1245 | ND |
| 2017-12-04 | 9590-032-1000 | ND |
| 2017-12-20 | 9590-018-0722 | ND |
| 2017-12-28 | 9590-049-1110 | ND |
| 2018-01-09 | 9590-032-1320 | ND |
| 2018-02-05 | 9590-030-1315 | ND |
| 2018-02-12 | 9590-049-1110 | ND |
| 2018-02-14 | 9590-018-0740 | ND |
| 2018-03-14 | 9590-051-1242 | ND |
| 2018-03-15 | 9590-020-1130 | ND |
| 2018-03-15 | 9590-035-1200 | ND |
| 2018-03-21 | 9590-034-1245 | ND |
| 2018-03-22 | 9590-043-1125 | ND |
| 2018-03-22 | 9590-044-1020 | ND |
| 2018-03-26 | 9590-022-1340 | ND |
| 2018-03-29 | 9590-019-1225 | ND |
| 2018-03-29 | 9590-037-1302 | ND |
| 2018-04-25 | 9590-030-1300 | ND |
| 2018-05-01 | 9590-049-1300 | ND |
| 2018-05-16 | 9590-032-1230 | ND |
| 2018-07-27 | 9590-032-0822 | ND |
| 2018-07-27 | 9590-049-0930 | ND |
| 2018-09-13 | 9590-030-1044 | ND |
| 2018-11-06 | 9590-030-1245 | ND |
| 2018-11-13 | 9590-032-1245 | ND |
| 2018-11-13 | 9590-049-1230 | ND |
| 2019-01-09 | 9590-030-1230 | ND |
| 2019-01-28 | 9590-032-0945 | ND |
| 2019-01-28 | 9590-049-1040 | ND |
| 2019-01-30 | 9590-020-1052 | ND |
| 2019-01-31 | 9590-034-1100 | ND |
| 2019-02-21 | 9590-014-1320 | ND |
| 2019-02-28 | 9590-051-1042 | ND |
| 2019-03-01 | 9590-035-1102 | ND |
| 2019-03-15 | 9590-043-1035 | ND |
| 2019-03-15 | 9590-044-1120 | ND |
| 2019-03-21 | 9590-019-1136 | ND |
| 2019-03-21 | 9590-037-1100 | ND |
| 2019-05-07 | 9590-032-0835 | ND |
| 2019-05-07 | 9590-049-1025 | ND |
| 2019-05-09 | 9590-030-1100 | ND |
| 2019-07-30 | 9590-032-0730 | ND |
| 2019-07-30 | 9590-049-0830 | ND |
| 2019-09-19 | 9590-030-0638 | ND |
| 2019-10-30 | 9590-030-1045 | ND |
| 2019-11-14 | 9590-032-0710 | ND |
| 2019-11-14 | 9590-049-0810 | ND |