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EWG's Tap Water Database — 2019 UPDATE

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Trichlorofluoromethane

Status: No national drinking water standard exists

 

Trichlorofluoromethane (Freon 11) is a refrigerant, solvent and aerosol propellant banned in 2000 under the Montreal Protocol because of its ozone-depleting properties. Freons can cause heart, nervous system and liver damage.

2015-2017:

FOUND
FOUND ABOVE HEALTH GUIDELINES

11

states detected

36

utilities detected

5.0 million

people served

0

states over health guideline

0

utilities over health guideline

0

people served over health guideline

Health concerns for trichlorofluoromethane

Harm to the liver

Change to the central nervous system

Harm to the heart and blood vessels

State and national drinking water standards and health guidelines

EWG Health Guideline 1,300 ppb

The EWG Health Guideline of 1,300 ppb for trichlorofluoromethane 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 harm to internal organs.

ppb = parts per billion

States reporting trichlorofluoromethane in drinking water

UTILITIES WITH CONTAMINATION
State UtilitiesPeople Served
California104,458,890
New York9284,571
Wisconsin3235,285
Maryland113,200
Missouri210,120
Ohio16,400
Washington53,869
Georgia1806
Virginia1530
Minnesota1493
Rhode Island2429
MORE
LESS

Utilities with the highest amounts of trichlorofluoromethane, 2015-2017

ALL UTILITIES
LARGE UTILITIES
UtilityLocationTestsAverage levelPeople served
Westerner Mobile Home ParkElk Grove, CA1 of 117.7 ppb65
Yuima Municipal Water District IdaPauma Valley, CA12 of 3016.4 ppb400
Tall Oaks Mobile Home ParkLeslie, MO13 of 221.92 ppb120
Yak Co. - CrewportYakima, WA3 of 31.50 ppb192
Drakes Branch, Town ofDrakes Branch, VA1 of 11.10 ppb530
EurekaEureka, MO6 of 280.939 ppb10,000
Garden CityGarden City, NY27 of 3850.886 ppb46,000
WhiteWhite, GA3 of 70.746 ppb806
Marshall Community Water AssociationMarshall, WA2 of 20.601 ppb74
Balsam Crest Homeowners AssociationChestertown, NY5 of 60.583 ppb50
South Huntington Water DepartmentSouth Huntington, NY3 of 30.450 ppb81,760
Wilbur, Town OfWilbur, WA1 of 30.400 ppb914
Evergreen Homeowners AssociationChestertown, NY3 of 90.344 ppb56
Maryland American Water Company*Bel Air, MD1 of 30.300 ppb13,200
Camrosa Water DistrictCamarillo, CA1 of 110.136 ppb30,000
Ladd Center Water System*North Kingstown, RI3 of 150.135 ppb129
Exeter Job Corps CenterProvidence, RI3 of 150.135 ppb300
Okanogan Water Department, City Of*Okanogan, WA1 of 30.1000 ppb2,539
Progressive Flat Water AssociationTonasket, WA1 of 30.1000 ppb150
Jurupa Community Services District*Jurupa Valley, CA1 of 630.0984 ppb106,907
Chino Basin Desalter Authority - Desalter 1*Ontario, CA1 of 1090.0835 ppb0
AlturaAltura, MN1 of 90.0667 ppb493
Madison Water Utility*Madison, WI8 of 1020.0636 ppb235,000
Maple Bluff WaterworksMadison, WI8 of 1020.0636 ppb1,342
Danville Drive Service AreaFitchburg, WI8 of 1020.0636 ppb150
Rimrock Road NeighborhoodFitchburg, WI8 of 1020.0636 ppb135
Shorewood Hills WaterworksMadison, WI8 of 1020.0636 ppb1,670
Carle Place Water DistrictCarle Place, NY11 of 1220.0586 ppb9,005
Hicksville WDHicksville, NY27 of 6820.0409 ppb48,000
Milford City Public Water SystemMilford, OH1 of 190.0263 ppb6,400
San Bernardino City*San Bernardino, CA3 of 8410.0193 ppb188,931
Franklin Square WDFranklin Square, NY1 of 2240.00670 ppb20,000
South Farmingdale WDFarmingdale, NY1 of 3080.00315 ppb44,700
Los Angeles Department of Water and Power*Los Angeles, CA6 of 2,0600.00309 ppb3,935,257
Los Angeles County Waterworks District 21-kagel CanyonAlhambra, CA6 of 2,0600.00309 ppb550
Plainview WDPlainview, NY1 of 5630.00195 ppb35,000
Pasadena*Pasadena, CA1 of 1,1130.000979 ppb165,740

* 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 Trichlorofluoromethane, but it likely has the contaminant in its water supply.

UtilityLocationTestsAverage levelPeople served
EurekaEureka, MO6 of 280.939 ppb10,000
Garden CityGarden City, NY27 of 3850.886 ppb46,000
South Huntington Water DepartmentSouth Huntington, NY3 of 30.450 ppb81,760
Maryland American Water Company*Bel Air, MD1 of 30.300 ppb13,200
Camrosa Water DistrictCamarillo, CA1 of 110.136 ppb30,000
Jurupa Community Services District*Jurupa Valley, CA1 of 630.0984 ppb106,907
Madison Water Utility*Madison, WI8 of 1020.0636 ppb235,000
Hicksville WDHicksville, NY27 of 6820.0409 ppb48,000
San Bernardino City*San Bernardino, CA3 of 8410.0193 ppb188,931
Franklin Square WDFranklin Square, NY1 of 2240.00670 ppb20,000
South Farmingdale WDFarmingdale, NY1 of 3080.00315 ppb44,700
Los Angeles Department of Water and Power*Los Angeles, CA6 of 2,0600.00309 ppb3,935,257
Plainview WDPlainview, NY1 of 5630.00195 ppb35,000
Pasadena*Pasadena, CA1 of 1,1130.000979 ppb165,740

* 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 Trichlorofluoromethane, but it likely has the contaminant in its water supply.