1,4-Dioxane

Merchantville Pennsauken

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.

Click here to read more about 1,4-dioxane.

MORE ABOUT THIS CONTAMINANT

146

Samples

Samples exceeding legal limit (MCL)

134

Samples exceeding
health guidelines

Testing results - average by year

Year	Average result	Samples taken	Detections	Range of results
2014	1.79 ppb	5	5	0.360 ppb - 5.60 ppb
2015	2.16 ppb	9	9	0.360 ppb - 5.40 ppb
2016	2.22 ppb	47	47	0.280 ppb - 8.22 ppb
2017	2.33 ppb	45	45	0.150 ppb - 7.76 ppb
2018	1.96 ppb	40	40	0.320 ppb - 5.69 ppb
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
2014-11-13	2040325007	0.410 ppb
2014-11-13	2040325010	5.60 ppb
2014-11-13	2040325018	1.60 ppb
2014-11-13	2040325004	0.990 ppb
2014-11-13	2040325013	0.360 ppb
2015-02-23	2056420003	2.70 ppb
2015-02-24	2056426001	2.70 ppb
2015-05-27	2073557004	0.380 ppb
2015-05-27	2073557012	1.80 ppb
2015-05-27	2073557018	5.40 ppb
2015-05-27	2073557009	1.60 ppb
2015-05-27	2073557001	1.10 ppb
2015-05-27	2073557015	0.360 ppb
2015-08-17	2089821003	3.40 ppb
2016-06-07	32893801	2.09 ppb
2016-06-07	32893812	7.24 ppb
2016-06-07	32893821	0.790 ppb
2016-06-07	32893823	1.02 ppb
2016-06-07	32893810	0.450 ppb
2016-06-07	32893803	0.450 ppb
2016-06-07	32893807	0.700 ppb
2016-06-07	32893805	3.92 ppb
2016-06-07	32893804	5.52 ppb
2016-06-07	32893811	7.04 ppb
2016-06-07	32893817	8.22 ppb
2016-06-07	32893818	1.05 ppb
2016-06-07	32893819	0.990 ppb
2016-06-07	32893822	1.03 ppb
2016-06-07	32893808	0.430 ppb
2016-06-07	32893802	0.440 ppb
2016-07-07	33033301	1.96 ppb
2016-07-07	33033312	5.85 ppb
2016-07-07	33033321	0.820 ppb
2016-07-07	33033323	1.16 ppb
2016-07-07	33033310	0.390 ppb
2016-07-07	33033303	0.430 ppb
2016-07-07	33033307	0.690 ppb
2016-07-07	33033305	2.19 ppb
2016-07-07	33033304	4.00 ppb
2016-07-07	33033311	5.55 ppb
2016-07-07	33033317	5.84 ppb
2016-07-07	33033318	0.820 ppb
2016-07-07	33033319	0.340 ppb
2016-07-07	33033322	1.22 ppb
2016-07-07	33033308	0.390 ppb
2016-07-07	33033302	0.570 ppb
2016-10-17	33942501	2.19 ppb
2016-10-17	33942512	7.53 ppb
2016-10-17	33942520	0.300 ppb
2016-10-17	33942522	1.15 ppb
2016-10-17	33942510	0.420 ppb
2016-10-17	33942503	1.76 ppb
2016-10-17	33942507	0.650 ppb
2016-10-17	33942505	2.81 ppb
2016-10-17	33942504	4.23 ppb
2016-10-17	33942511	6.97 ppb
2016-10-17	33942517	0.710 ppb
2016-10-17	33942518	0.380 ppb
2016-10-17	33942521	0.970 ppb
2016-10-17	33942508	0.280 ppb
2016-10-17	33942502	0.570 ppb
2017-01-26	34928401	1.90 ppb
2017-01-26	34928412	4.34 ppb
2017-01-26	34928421	0.270 ppb
2017-01-26	34928423	0.460 ppb
2017-01-26	34928410	0.150 ppb
2017-01-26	34928403	0.240 ppb
2017-01-26	34928407	0.490 ppb
2017-01-26	34928405	2.19 ppb
2017-01-26	34928404	4.60 ppb
2017-01-26	34928411	4.14 ppb
2017-01-26	34928417	5.41 ppb
2017-01-26	34928418	0.340 ppb
2017-01-26	34928419	0.420 ppb
2017-01-26	34928422	0.890 ppb
2017-01-26	34928408	0.200 ppb
2017-01-26	34928402	0.400 ppb
2017-09-26	37704401	1.58 ppb
2017-09-26	37704410	4.84 ppb
2017-09-26	37704424	3.59 ppb
2017-09-26	37704418	1.22 ppb
2017-09-26	37704409	0.540 ppb
2017-09-26	37704403	0.540 ppb
2017-09-26	37704406	0.760 ppb
2017-09-26	37704404	2.89 ppb
2017-09-26	37704416	7.11 ppb
2017-09-26	37704415	6.54 ppb
2017-09-26	37704421	0.790 ppb
2017-09-26	37704422	7.76 ppb
2017-09-26	37704417	1.32 ppb
2017-09-26	37704407	0.390 ppb
2017-09-26	37704402	0.670 ppb
2017-12-27	38668101	2.81 ppb
2017-12-27	38668111	7.45 ppb
2017-12-27	38668119	0.980 ppb
2017-12-27	38668121	1.54 ppb
2017-12-27	38668109	0.520 ppb
2017-12-27	38668106	0.860 ppb
2017-12-27	38668102	3.06 ppb
2017-12-27	38668103	3.81 ppb
2017-12-27	38668110	6.93 ppb
2017-12-27	38668116	6.64 ppb
2017-12-27	38668117	0.880 ppb
2017-12-27	38668120	1.48 ppb
2017-12-27	38668107	0.590 ppb
2017-12-27	38668104	0.440 ppb
2018-03-19	39511001	0.460 ppb
2018-03-19	39511010	5.41 ppb
2018-03-19	39510502	0.710 ppb
2018-03-19	39511007	0.350 ppb
2018-03-19	39511005	2.03 ppb
2018-03-19	39511004	2.41 ppb
2018-03-19	39511003	2.45 ppb
2018-03-19	39511011	4.65 ppb
2018-03-19	39511012	5.69 ppb
2018-03-19	39510503	0.600 ppb
2018-03-19	39511008	0.320 ppb
2018-03-19	39511002	0.320 ppb
2018-03-20	39510504	0.890 ppb
2018-06-29	40779901	1.90 ppb
2018-06-29	40779909	4.90 ppb
2018-06-29	40779916	0.690 ppb
2018-06-29	40779920	1.24 ppb
2018-06-29	40779906	0.540 ppb
2018-06-29	40779902	4.80 ppb
2018-06-29	40779903	0.990 ppb
2018-06-29	40779904	0.650 ppb
2018-06-29	40779912	4.73 ppb
2018-06-29	40779910	5.36 ppb
2018-06-29	40779917	0.730 ppb
2018-06-29	40779918	0.720 ppb
2018-06-29	40779921	1.55 ppb
2018-06-29	40779907	0.540 ppb
2018-09-24	41943601	1.45 ppb
2018-09-24	41943609	4.94 ppb
2018-09-24	41943615	0.730 ppb
2018-09-24	41943619	0.910 ppb
2018-09-24	41943606	0.350 ppb
2018-09-24	41943602	0.520 ppb
2018-09-24	41943603	2.33 ppb
2018-09-24	41943604	3.99 ppb
2018-09-24	41943614	4.92 ppb
2018-09-24	41943616	0.730 ppb
2018-09-24	41943617	0.710 ppb
2018-09-24	41943620	0.990 ppb
2018-09-24	41943607	0.360 ppb