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EWG's Tap Water Database — 2021 UPDATE

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1,1-Dichloroethane

Grafton Waterworks

1,1-Dichloroethane is used in industrial chemical synthesis; in plastics, paint, varnish and finish removers; and as a pesticide. It can cause cancer.

MORE ABOUT THIS CONTAMINANT

 

158

Samples

0

Samples exceeding legal limit (MCL)

24

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20142.00 ppb3013ND - 18.0 ppb
20151.49 ppb2611ND - 12.0 ppb
20162.30 ppb249ND - 16.0 ppb
20171.57 ppb2412ND - 11.0 ppb
20181.99 ppb2410ND - 14.0 ppb
20191.48 ppb3014ND - 10.00 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 3 ppb

The EWG Health Guideline of 3 ppb for 1,1-dichloroethane was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer.

ppb = parts per billion

All test results

Date Lab ID Result
2014-03-10773674ND
2014-03-10773656ND
2014-03-10773671ND
2014-03-10773659ND
2014-03-107736680.430 ppb
2014-03-1077366712.0 ppb
2014-04-07778332ND
2014-04-07778325ND
2014-04-07778331ND
2014-04-07778326ND
2014-04-077783290.690 ppb
2014-04-0777833018.0 ppb
2014-07-29806739ND
2014-07-29806744ND
2014-07-29806738ND
2014-07-29806745ND
2014-07-298067420.530 ppb
2014-07-298067460.550 ppb
2014-07-298067470.950 ppb
2014-07-2980674317.0 ppb
2014-11-17831957-12875ND
2014-11-17831969-12875ND
2014-11-17831953-128750.298 ppb
2014-11-20832658-128960.0700 ppb
2014-12-15835979ND
2014-12-15835978ND
2014-12-15835985ND
2014-12-158359840.160 ppb
2014-12-158359820.270 ppb
2014-12-158359839.00 ppb
2015-03-04846466ND
2015-03-04846461ND
2015-03-04846449ND
2015-03-04846464ND
2015-03-04846451ND
2015-03-048464635.00 ppb
2015-05-26861799ND
2015-05-26861792ND
2015-05-26861793ND
2015-05-268617970.340 ppb
2015-05-268617980.910 ppb
2015-05-268617967.60 ppb
2015-09-08881969ND
2015-09-08881962ND
2015-09-08881963ND
2015-09-088819680.370 ppb
2015-09-09881967ND
2015-09-098819700.190 ppb
2015-09-098819710.470 ppb
2015-09-0988196612.0 ppb
2015-12-28899820ND
2015-12-28899813ND
2015-12-28899814ND
2015-12-288998180.370 ppb
2015-12-288998190.430 ppb
2015-12-2889981711.0 ppb
2016-03-16910611ND
2016-03-16910599ND
2016-03-16910609ND
2016-03-16910601ND
2016-03-169106070.570 ppb
2016-03-1691060616.0 ppb
2016-05-16921438ND
2016-05-16921431ND
2016-05-16921432ND
2016-05-169214370.330 ppb
2016-05-169214360.440 ppb
2016-05-1692143513.0 ppb
2016-08-31942867ND
2016-08-31942860ND
2016-08-31942861ND
2016-08-319428650.380 ppb
2016-08-3194286412.0 ppb
2016-09-01942866ND
2016-11-17960029ND
2016-11-17960022ND
2016-11-17960028ND
2016-11-17960023ND
2016-11-179600270.400 ppb
2016-11-1796002612.0 ppb
2017-03-15978080ND
2017-03-15978083ND
2017-03-15978086ND
2017-03-16978073ND
2017-03-169780770.320 ppb
2017-03-169780769.80 ppb
2017-06-281001051ND
2017-06-281001043ND
2017-06-2810010480.340 ppb
2017-06-2810010500.390 ppb
2017-06-2810010477.90 ppb
2017-09-201019870ND
2017-09-201019863ND
2017-09-201019869ND
2017-09-2010198680.410 ppb
2017-09-2010198710.520 ppb
2017-09-2010198720.800 ppb
2017-09-20101986711.0 ppb
2017-12-191034429ND
2017-12-191034422ND
2017-12-191034423ND
2017-12-1910344270.380 ppb
2017-12-1910344281.80 ppb
2017-12-1910344264.00 ppb
2018-03-141045110ND
2018-03-141045103ND
2018-03-141045109ND
2018-03-141045104ND
2018-03-1410451080.430 ppb
2018-03-14104510713.0 ppb
2018-06-191062396ND
2018-06-191062389ND
2018-06-191062390ND
2018-06-1910623940.550 ppb
2018-06-1910623950.780 ppb
2018-09-171080756ND
2018-09-171080752ND
2018-09-171080753ND
2018-09-1710807583.30 ppb
2018-09-2610836080.360 ppb
2018-09-2610836102.50 ppb
2018-09-26108360912.0 ppb
2018-11-261094376ND
2018-11-261094369ND
2018-11-261094370ND
2018-11-271094374ND
2018-11-2710943750.880 ppb
2018-11-27109437314.0 ppb
2019-03-181110136ND
2019-03-181110134ND
2019-03-181110128ND
2019-03-1811101320.310 ppb
2019-03-1811101300.500 ppb
2019-03-18111013110.00 ppb
2019-04-171116388ND
2019-06-171128507ND
2019-06-171128506ND
2019-06-171128501ND
2019-06-171128503ND
2019-06-1711285050.460 ppb
2019-06-1711285020.640 ppb
2019-06-1711285049.80 ppb
2019-09-241151017ND
2019-09-241151011ND
2019-09-241151013ND
2019-09-2411510150.300 ppb
2019-09-2411510180.550 ppb
2019-09-2411510120.600 ppb
2019-09-2411510160.960 ppb
2019-09-2411510191.10 ppb
2019-09-2411510149.00 ppb
2019-12-101164883ND
2019-12-101164881ND
2019-12-101164882ND
2019-12-101164877ND
2019-12-101164879ND
2019-12-1011648780.470 ppb
2019-12-1011648809.70 ppb