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1,1,1-Trichloroethane

Status: National drinking water standard exists

 

1,1,1-Trichloroethane is a solvent and a degreasing agent used for manufacturing metal products and as ingredient in cleaners and aerosols. Exposure to 1,1,1-trichloroethane can harm the nervous system, liver and circulatory system.

2015:

FOUND

14

states detected

97

utilities detected

4.0 million

people served

Health concerns for 1,1,1-trichloroethane

Harm to the brain and nervous system

State and national drinking water standards and health guidelines

EPA Maximum Contaminant
Level (MCL) 200 ppb

The enforceable federal standard that defines the highest level of a contaminant allowed in drinking water.

ppb = parts per billion.

EPA Maximum Contaminant
Level Goal (MCLG)200 ppb

A non-enforceable federal health guideline. For cancer-causing chemicals, these health goals are typically set to zero.

ppb = parts per billion.

States reporting 1,1,1-trichloroethane in drinking water

UTILITIES WITH CONTAMINATION
State UtilitiesPeople Served
New York271,802,585
California171,274,816
Wisconsin6262,186
New Jersey15202,879
Illinois3159,003
Indiana477,676
Connecticut369,359
Pennsylvania1058,191
Massachusetts226,574
West Virginia323,440
Washington37,530
Ohio16,400
Alaska2511
Nevada1150
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Utilities with the highest amounts of 1,1,1-trichloroethane, 2015

ALL UTILITIES
LARGE UTILITIES
UtilityLocationTestsAverage levelPeople served
Bets Water SystemOak Harbor, WA1 of 114.2 ppb50
Madisonburg Water WorksMadisonburg, PA1 of 18.55 ppb250
Grafton WaterworksGrafton, WI12 of 265.36 ppb11,490
Umh Valley View Danboro Mobile Home ParkDoylestown, PA1 of 14.00 ppb920
Hinsdale Town Water DistrictHinsdale, NY1 of 13.10 ppb350
Grafton Water District*Grafton, MA1 of 102.00 ppb10,703
Nikishka BayAnchorage, AK1 of 11.26 ppb470
Edna Mahan CorrectionalClinton, NJ1 of 11.22 ppb1,700
Coraopolis Water & Sewer Authority*Coraopolis, PA1 of 21.19 ppb5,804
Corning Manor Water DistrictCorning, NY1 of 11.10 ppb770
Georgetown*Georgetown, IL1 of 10.960 ppb3,678
Holden Water Division, DPWHolden, MA4 of 80.925 ppb15,871
Rainier TerraceOlympia, WA1 of 10.900 ppb125
Mcconnellsburg Borough Municipal AuthorityMcconnellsburg, PA2 of 30.873 ppb2,000
South Huntington Water DepartmentSouth Huntington, NY1 of 10.850 ppb81,760
Birchview PropertiesFairbanks, AK1 of 10.800 ppb41
Hicksville WDHicksville, NY33 of 1700.780 ppb47,810
Great Oaks Water Company Inc.San Jose, CA1 of 20.750 ppb99,199
Pompton Lakes Mua*Pompton Lakes, NJ1 of 10.616 ppb11,435
Painted Post Village*Painted Post, NY1 of 10.600 ppb2,334
Unadilla VillageUnadilla, NY1 of 10.560 ppb1,128
Lomira WaterworksLomira, WI1 of 20.550 ppb2,461
Aberdeen Pate Water Company Inc.*Aurora, IN1 of 10.500 ppb4,688
Milford City Public Water SystemMilford, OH2 of 40.453 ppb6,400
Cassadaga VillageCassadaga, NY3 of 60.415 ppb760
QuimperPort Hadlock, WA1 of 10.400 ppb7,355
Riverbelle Properties LLC Mobile Home ParkReno, NV1 of 20.345 ppb150
Ashwood ApartmentsChester Springs, PA2 of 40.325 ppb75
Franklin Square WDFranklin Square, NY20 of 710.296 ppb20,000
Pequannock Twp Water Department*Pompton Plains, NJ1 of 30.267 ppb14,002

* 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 1,1,1-Trichloroethane, but it likely has the contaminant in its water supply.

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UtilityLocationTestsAverage levelPeople served
Grafton WaterworksGrafton, WI12 of 265.36 ppb11,490
Grafton Water District*Grafton, MA1 of 102.00 ppb10,703
Holden Water Division, DPWHolden, MA4 of 80.925 ppb15,871
South Huntington Water DepartmentSouth Huntington, NY1 of 10.850 ppb81,760
Hicksville WDHicksville, NY33 of 1700.780 ppb47,810
Great Oaks Water Company Inc.San Jose, CA1 of 20.750 ppb99,199
Pompton Lakes Mua*Pompton Lakes, NJ1 of 10.616 ppb11,435
Franklin Square WDFranklin Square, NY20 of 710.296 ppb20,000
Pequannock Twp Water Department*Pompton Plains, NJ1 of 30.267 ppb14,002
Garfield Water DepartmentGarfield City, NJ6 of 150.251 ppb30,487
Lafayette Water Works*Lafayette, IN1 of 20.250 ppb67,140
Garden CityGarden City, NY15 of 1320.219 ppb25,000
Bethpage WDBethpage, NY23 of 1620.181 ppb33,000
HempsteadHempstead, NY5 of 600.179 ppb56,000
RockfordRockford, IL3 of 170.174 ppb155,000
Weirton Area Water Board*Weirton, WV1 of 30.167 ppb22,694
Westbury WDWestbury, NY7 of 300.160 ppb20,500
Parsippany-Troy Hills Water DepartmentParsippany, NJ4 of 240.158 ppb50,400
Plainview WDPlainview, NY7 of 670.151 ppb35,000
Swta - Main System*Allentown, PA1 of 50.128 ppb16,000
MineolaMineola, NY7 of 930.126 ppb20,600
Perkasie Regional Authority*Perkasie, PA1 of 110.1000 ppb11,100
Jericho Water DistrictSyosset, NY14 of 1870.0864 ppb58,000
San Jose Water Company*San Jose, CA5 of 630.0825 ppb998,000
Port Washington WD38 Sqndy Hollow Rd, NY7 of 890.0643 ppb34,000
Valley Water Systems, Inc.Plainville, CT1 of 80.0638 ppb18,231
Manchester Water Department*Manchester, CT1 of 160.0563 ppb51,066
Morris County MUA*Randolph Twp, NJ3 of 80.0525 ppb32,980
Moorestown Water DepartmentMorrestown, NJ2 of 50.0400 ppb19,000
Elmira Water Board*Elmira, NY1 of 190.0300 ppb66,529

* 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 1,1,1-Trichloroethane, but it likely has the contaminant in its water supply.

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