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CONTAMINANT

1,1-Dichloroethane

STATES DETECTED

38

serves

22 million

utilities detected

432

states detected

0

serves

0

utilities detected

0

Overview

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

State, National, and Health Guidelines for Drinking Water

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

National Standard Exists

Health Concerns:

  • Cancer

  • Change to the heart and blood vessels

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1,1-Dichloroethane from your water?

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1,1-Dichloroethane around the Country

UTILITIES WITH CONTAMINATION
State Utilities People Served
California8210,559,130
New York492,557,963
New Jersey532,045,485
Pennsylvania231,305,087
Kansas1480,000
Maryland6432,437
Ohio17430,577
Illinois20402,847
Indiana11381,853
Alabama29373,750
Wisconsin11360,757
Delaware5324,166
Massachusetts17313,092
Michigan3281,555
Arizona4248,217
Florida2242,002
Iowa10199,275
Minnesota9199,218
Connecticut4178,234
Nebraska8143,254
Washington4132,862
Rhode Island5101,368
North Carolina694,440
New Mexico274,700
Colorado368,898
Missouri663,956
Utah361,770
Mississippi555,624
South Carolina855,243
Alaska549,124
Louisiana225,848
Texas320,545
West Virginia319,379
Vermont914,330
Oklahoma111,442
Georgia14,199
Arkansas12,225
New Hampshire1600

Utilities with the highest amounts of 1,1-dichloroethane, 2013-2023

ALL UTILITIES
LARGE UTILITIES
Utility Location Tests Average level People served
N Walpole Village District/lowBellows Falls, NH12 of 131.88 ppb600
Grafton WaterworksGrafton, WI85 of 1751.64 ppb11,745
Swan Lake ResortNew River, NJ16 of 401.49 ppb70
Bets Water SystemCoupeville, WA4 of 41.48 ppb50
Midvale City Water SystemEagle Mountain, UT4 of 641.40 ppb33,000
Westbury WDWestbury, NY275 of 4461.20 ppb20,500
Bethpage WDBethpage, NY179 of 4210.938 ppb33,000
Carle Place Water DistrictCarle Place, NY150 of 3600.732 ppb9,005
Montmorenci Water DistrictAiken, SC22 of 240.669 ppb3,722
J&m Mobile Home Park Capital LlcSedalia, MO1 of 20.515 ppb35
Saint Anthony VillageMinneapolis, MN6 of 70.509 ppb9,257
Pine Tree Mobile Home ParkStamford, NY1 of 10.500 ppb44
ColeraineColeraine, MN1 of 10.390 ppb2,014
Town of Hempstead Water DepartmentEast Meadow, NY257 of 9560.369 ppb110,000
Greenlawn WDGreenlawn, NY18 of 210.355 ppb42,000
Altoona WaterworksAltoona, WI14 of 160.330 ppb7,345
Meridian Heights Water DistrictPort Orchard, WA1 of 20.325 ppb126
Smithtown WDKings Park, NY1 of 10.310 ppb19,635
Green Meadow Estates Of Rockford LlcKnoxville, IL12 of 520.307 ppb250
Rockford*Rockford, IL12 of 520.307 ppb147,051
New BrightonNew Brighton, MN2 of 80.299 ppb22,902
Port Washington WDPort Washington, NY137 of 5370.292 ppb34,000
Plainview WDPlainview, NY101 of 4750.271 ppb35,000
Silver Lake Institute - Castile Water District #1Castile, NY3 of 60.250 ppb440
Twin Water AuthorityGuin, AL1 of 20.250 ppb804
Perry Village*Perry, NY3 of 60.250 ppb4,348
Gardeau Water DistrictSilver Springs, NY3 of 60.250 ppb60
Perry Center Water DistrictPerry, NY3 of 60.250 ppb150
Ausable Heights Water SystemKeeseville, NY1 of 20.250 ppb46
South Huntington Water DepartmentCenterport, NY14 of 210.245 ppb81,760
Oakland Psd Golden Key AcresWeirton, WV1 of 20.240 ppb506
Weirton Area Water Board*Weirton, WV1 of 20.240 ppb18,633
Brooke County PsdWellsburg, WV1 of 20.240 ppb240
Deforest WaterworksDeforest, WI9 of 170.210 ppb9,400
Garfield Water DepartmentGarfield, NJ12 of 840.202 ppb30,487
Saugatucket SpringsProvidence, RI1 of 30.200 ppb110
Salem Water SupplySalem, IA3 of 40.177 ppb396
Rathbun Reg Water Association (burlington)*Centerville, IA3 of 40.177 ppb8,375
Hillsboro Water WorksWashington, IA3 of 40.177 ppb163
Mediapolis Water Supply*Mediapolis, IA3 of 40.177 ppb1,688
Fayetteville Water AuthoritySylacauga, AL2 of 60.167 ppb5,694
Ragland (the Water Works Board of The, Town of)Ragland, AL1 of 30.167 ppb3,162
Harpersville Water BoardHarpersville, AL1 of 30.167 ppb2,313
Commerce HeightsLakewood, CO16 of 280.150 ppb130
Shady Lane Mobile Home ParkLakewood, CO16 of 280.150 ppb165
South Adams County Water and Sanitation District*Commerce City, CO16 of 280.150 ppb68,603
Garden CityGarden City, NY90 of 7480.144 ppb46,000
Greenport Water DistrictGreenport, NY149 of 4840.142 ppb2,050
Suffolk County Water Authority*Hauppauge, NY149 of 4840.142 ppb1,100,000
St James WDKings Park, NY149 of 4840.142 ppb10,587

* 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, WI85 of 1751.64 ppb11,745
Midvale City Water SystemEagle Mountain, UT4 of 641.40 ppb33,000
Westbury WDWestbury, NY275 of 4461.20 ppb20,500
Bethpage WDBethpage, NY179 of 4210.938 ppb33,000
Town of Hempstead Water DepartmentEast Meadow, NY257 of 9560.369 ppb110,000
Greenlawn WDGreenlawn, NY18 of 210.355 ppb42,000
Smithtown WDKings Park, NY1 of 10.310 ppb19,635
Rockford*Rockford, IL12 of 520.307 ppb147,051
New BrightonNew Brighton, MN2 of 80.299 ppb22,902
Port Washington WDPort Washington, NY137 of 5370.292 ppb34,000
Plainview WDPlainview, NY101 of 4750.271 ppb35,000
South Huntington Water DepartmentCenterport, NY14 of 210.245 ppb81,760
Weirton Area Water Board*Weirton, WV1 of 20.240 ppb18,633
Garfield Water DepartmentGarfield, NJ12 of 840.202 ppb30,487
South Adams County Water and Sanitation District*Commerce City, CO16 of 280.150 ppb68,603
Garden CityGarden City, NY90 of 7480.144 ppb46,000
Suffolk County Water Authority*Hauppauge, NY149 of 4840.142 ppb1,100,000
St James WDKings Park, NY149 of 4840.142 ppb10,587
Sioux City Water Supply*Sioux City, IA4 of 80.133 ppb85,791
Jericho Water DistrictSyosset, NY83 of 6780.124 ppb58,000
Lafayette Water Works*Lafayette, IN2 of 40.120 ppb70,835
Madison Water Department*Madison, IN1 of 40.115 ppb15,323
Loveland City PWSLoveland, OH2 of 20.115 ppb12,800
Irondale Water SystemIrondale, AL7 of 320.109 ppb10,098
Pell City Water WorksPell City, AL3 of 140.107 ppb15,402
Pompton Lakes MuaPompton Lakes, NJ4 of 160.101 ppb11,435
Hudson Water SupplyHudson, MA11 of 580.0969 ppb18,406
Grafton Water District*Grafton, MA3 of 640.0944 ppb10,703
Dix Hills Water DistrictHuntington, NY5 of 190.0929 ppb34,522
Willingboro MUA*Willingbor0, NJ6 of 380.0889 ppb35,000
Loves ParkLoves Park, IL2 of 100.0848 ppb24,000
EdinaEdina, MN7 of 330.0833 ppb53,494
Cape GirardeauCape Girardeau, MO2 of 60.0832 ppb39,941
Leeds Water BoardLeeds, AL13 of 830.0783 ppb21,300
City of Talladega Water and Sewer Board*Talladega, AL19 of 1260.0754 ppb20,250
Batavia City*Batavia, NY4 of 100.0662 ppb21,970
Aqua Ohio - City of Massillon*Massillon, OH2 of 30.0657 ppb95,636
Jacksonville UtilitiesJacksonville, AL2 of 160.0625 ppb13,809
Peru Water DepartmentPeru, IN2 of 30.0600 ppb11,417
Oneonta Utilities Board*Oneonta, AL5 of 430.0581 ppb19,737
Manhasset Lakeville WD*Great Neck, NY38 of 5100.0560 ppb44,600
Waterbury Water Department*Waterbury, CT1 of 90.0556 ppb107,271
City of LindsayLindsay, CA2 of 250.0544 ppb12,659
Collingswood Water DeparPennsauken, NJ5 of 500.0460 ppb24,500
Hamlet Water System*Hamlet, NC3 of 40.0425 ppb10,289
Taylorville*Taylorville, IL4 of 40.0425 ppb16,396
US Army Aviation and Missile CommandRedstone Arsenal, AL2 of 240.0417 ppb38,700
Endicott Municipal Water WorksEndicott, NY4 of 470.0415 ppb45,000
Plainfield TownshipGrand Rapids, MI4 of 40.0400 ppb42,271
Pennsylvania American Water BerwickMilton, PA2 of 20.0400 ppb15,282

* 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.

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