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EWG's Tap Water Database — 2019 UPDATE

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1,1-Dichloroethane

Status: No national drinking water standard exists

 

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

2012-2017:

FOUND
FOUND ABOVE HEALTH GUIDELINES

38

states detected

369

utilities detected

16 million

people served

1

states over health guideline

1

utilities over health guideline

48,000

people served over health guideline

Health concerns for 1,1-dichloroethane

Cancer

Change to the heart and blood vessels

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

States reporting 1,1-dichloroethane in drinking water

UTILITIES REPORTING ABOVE HEALTH GUIDELINES UTILITIES WITH CONTAMINATION
State UtilitiesPeople Served UtilitiesPeople Served
California00545,016,270
New York148,000382,458,311
New Jersey00401,599,653
Pennsylvania00291,301,421
Ohio0023480,016
Maryland006436,916
Illinois0020407,915
Wisconsin0013376,417
Indiana0013364,104
Massachusetts0017340,531
Delaware002337,450
Kansas001331,900
Florida003257,371
Arizona005248,455
Michigan003237,183
Minnesota008223,702
Iowa0011198,824
Nebraska007141,383
Alabama008133,506
Alaska007115,049
Rhode Island004101,453
Connecticut00295,708
Washington00490,551
North Carolina00688,168
New Mexico00272,877
Arkansas00371,778
Mississippi00556,282
Colorado00151,465
South Carolina00750,304
Missouri00348,891
Utah00228,300
Louisiana00226,067
West Virginia00323,440
Texas00114,800
Vermont00914,335
Georgia00312,458
Oklahoma00111,442
New Hampshire003732
MORE
LESS

Filtering technologies that reduce 1,1-dichloroethane

carbon filter icon

Activated Carbon

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Reverse Osmosis

Utilities with the highest amounts of 1,1-dichloroethane, 2012-2017

ALL UTILITIES
LARGE UTILITIES
UtilityLocationTestsAverage levelPeople served
Hillview VillageYorkshire, NY2 of 52.80 ppb84
N Walpole Village District/lowBellows Falls, NH23 of 252.31 ppb600
City of TaneytownTaneytown, MD2 of 22.10 ppb6,750
Grafton WaterworksGrafton, WI32 of 741.78 ppb11,745
Hicksville WDHicksville, NY303 of 6821.78 ppb48,000
Swan Lake ResortNew River, NJ10 of 111.34 ppb70
Westbury WDWestbury, NY93 of 1751.00 ppb20,500
Montmorenci Water DistrictAiken, SC12 of 120.866 ppb3,669
Bethpage WDBethpage, NY220 of 4960.850 ppb33,000
Grafton Water District*Grafton, MA4 of 340.743 ppb10,703
Carle Place Water DistrictCarle Place, NY43 of 1220.599 ppb9,005
South Huntington Water DepartmentSouth Huntington, NY9 of 100.599 ppb81,760
Port Washington WD38 Sqndy Hollow Rd, NY97 of 2640.446 ppb34,000
Jefferson County Public Water Supply District 6House Springs, MO8 of 150.445 ppb7,300
Plainview WDPlainview, NY44 of 2330.355 ppb35,000
Garfield Water DepartmentGarfield, NJ14 of 420.330 ppb30,487
Saint Anthony VillageMinneapolis, MN5 of 70.330 ppb8,226
Abbotsford WaterworksAbbotsford, WI1 of 10.320 ppb1,956
Altoona WaterworksAltoona, WI3 of 30.317 ppb7,345
ShellmanShellman, GA1 of 20.310 ppb1,092
MineolaMineola, NY94 of 2550.288 ppb20,600
Merrill WaterworksMerrill, WI2 of 20.280 ppb9,661
Willingboro MUA*Willingboro, NJ7 of 150.263 ppb35,000
ColeraineColeraine, MN1 of 20.240 ppb1,114
Lomira WaterworksLomira, WI3 of 40.230 ppb2,461
RockfordRockford, IL7 of 310.227 ppb155,000
HempsteadHempstead, NY14 of 1790.223 ppb56,000
Holden Water Division, DPWHolden, MA10 of 290.221 ppb16,942
Jericho Water DistrictSyosset, NY118 of 6500.213 ppb58,000
Sioux City Water Supply*Sioux City, IA4 of 70.175 ppb82,759
Elsberry PWSElsberry, MO2 of 90.174 ppb1,963
Millis Water DepartmentMillis, MA5 of 250.173 ppb8,565
WA of Great Neck NorthGreat Neck, NY33 of 4480.169 ppb31,400
Bets Water SystemOak Harbor, WA1 of 30.167 ppb50
Cedar Springs Mobile Home Park Well #Shamong, NJ8 of 90.158 ppb90
Garden CityGarden City, NY40 of 3850.151 ppb46,000
Hudson Water SupplyHudson, MA5 of 240.142 ppb18,954
City of LindsayLindsay, CA1 of 40.130 ppb13,445
Town of Hempstead Water DepartmentEast Meadow, NY53 of 4320.130 ppb110,000
East Hanover Twp Water Department*East Hanover Township, NJ5 of 60.127 ppb11,393
Mount Pleasant WaterworksMount Pleasant, AR1 of 170.125 ppb1,353
Dix Hills Water DistrictHuntington, NY2 of 80.118 ppb34,522
Rykers Ridge Water CompanyMadison, IN1 of 40.115 ppb2,000
Dupont Water CompanyDupont, IN1 of 40.115 ppb3,812
Madison Water Department*Madison, IN1 of 40.115 ppb11,967
Deforest WaterworksDeforest, WI2 of 70.113 ppb9,400
Parsippany-Troy Hills Water DepartmentParsippany, NJ4 of 140.111 ppb50,400
South Bend Water WorksSouth Bend, IN9 of 590.102 ppb112,400
Cedarburg L & W CommissionCedarburg, WI16 of 720.0981 ppb11,900
South Farmingdale WDFarmingdale, NY19 of 3080.0835 ppb44,700

* This water utility supplies finished drinking water to at least one other water utility. The purchasing utility is not required to test for or report 1,1-Dichloroethane, but it likely has the contaminant in its water supply.

UtilityLocationTestsAverage levelPeople served
Grafton WaterworksGrafton, WI32 of 741.78 ppb11,745
Hicksville WDHicksville, NY303 of 6821.78 ppb48,000
Westbury WDWestbury, NY93 of 1751.00 ppb20,500
Bethpage WDBethpage, NY220 of 4960.850 ppb33,000
Grafton Water District*Grafton, MA4 of 340.743 ppb10,703
South Huntington Water DepartmentSouth Huntington, NY9 of 100.599 ppb81,760
Port Washington WD38 Sqndy Hollow Rd, NY97 of 2640.446 ppb34,000
Plainview WDPlainview, NY44 of 2330.355 ppb35,000
Garfield Water DepartmentGarfield, NJ14 of 420.330 ppb30,487
MineolaMineola, NY94 of 2550.288 ppb20,600
Willingboro MUA*Willingboro, NJ7 of 150.263 ppb35,000
RockfordRockford, IL7 of 310.227 ppb155,000
HempsteadHempstead, NY14 of 1790.223 ppb56,000
Holden Water Division, DPWHolden, MA10 of 290.221 ppb16,942
Jericho Water DistrictSyosset, NY118 of 6500.213 ppb58,000
Sioux City Water Supply*Sioux City, IA4 of 70.175 ppb82,759
WA of Great Neck NorthGreat Neck, NY33 of 4480.169 ppb31,400
Garden CityGarden City, NY40 of 3850.151 ppb46,000
Hudson Water SupplyHudson, MA5 of 240.142 ppb18,954
City of LindsayLindsay, CA1 of 40.130 ppb13,445
Town of Hempstead Water DepartmentEast Meadow, NY53 of 4320.130 ppb110,000
East Hanover Twp Water Department*East Hanover Township, NJ5 of 60.127 ppb11,393
Dix Hills Water DistrictHuntington, NY2 of 80.118 ppb34,522
Madison Water Department*Madison, IN1 of 40.115 ppb11,967
Parsippany-Troy Hills Water DepartmentParsippany, NJ4 of 140.111 ppb50,400
South Bend Water WorksSouth Bend, IN9 of 590.102 ppb112,400
Cedarburg L & W CommissionCedarburg, WI16 of 720.0981 ppb11,900
South Farmingdale WDFarmingdale, NY19 of 3080.0835 ppb44,700
St James WDSt James, NY4 of 150.0632 ppb10,587
Smithtown WDKings Park, NY4 of 150.0632 ppb19,635
Suffolk County Water Authority*Oakdale, NY4 of 150.0632 ppb1,100,000
Jonesboro Water System*Jonesboro, AR2 of 220.0541 ppb70,066
Taylorville*Taylorville, IL2 of 20.0450 ppb15,427
City of South Sioux CitySouth Sioux City, NE4 of 270.0419 ppb13,353
Pequannock Twp Water Department*Pompton Plains, NJ2 of 20.0415 ppb14,002
Oakland Water Department*Oakland, NJ2 of 170.0354 ppb12,754
Deep Run Water CorporationDeep Run, NC7 of 150.0333 ppb12,890
City of ColumbusColumbus, NE3 of 440.0333 ppb22,630
Moorestown Water DepartmentMoorestown, NJ5 of 160.0331 ppb20,700
Wallingford Water DepartmentWallingford, CT1 of 170.0294 ppb37,267
MS State University*Mississippi State, MS2 of 40.0255 ppb15,000
Maple Shade Water Department*Maple Shade, NJ2 of 80.0218 ppb19,400
City of Grand Island*Grand Island, NE8 of 320.0212 ppb51,440
City of OxfordOxford, MS1 of 40.0210 ppb25,000
Aqua Pa UwchlanBryn Mawr, PA2 of 160.0193 ppb32,200
Metropolitan DWID*Tucson, AZ3 of 230.0170 ppb44,998
Wright-Patterson AFB Area B PWSWright Patterson Afb, OH2 of 670.0154 ppb11,034
Oxford Water Works & Sewer Board*Oxford, AL5 of 280.0136 ppb27,141
Elmira Water Board*Elmira, NY1 of 560.0125 ppb65,631
Manhasset Lakeville WD*Great Neck, NY5 of 2830.0112 ppb44,600

* This water utility supplies finished drinking water to at least one other water utility. The purchasing utility is not required to test for or report 1,1-Dichloroethane, but it likely has the contaminant in its water supply.