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.
2017-2019:
10
states detected
38
utilities detected
679,000
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 | Utilities | People Served | |
| New York | 18 | 320,808 | |
| Wisconsin | 3 | 235,285 | |
| California | 4 | 45,414 | |
| Alabama | 1 | 38,700 | |
| Massachusetts | 1 | 16,402 | |
| Missouri | 2 | 10,694 | |
| Ohio | 1 | 6,400 | |
| Washington | 5 | 3,901 | |
| Georgia | 1 | 806 | |
| Rhode Island | 2 | 429 | |
Utilities with the highest amounts of trichlorofluoromethane, 2017-2019
| Utility | Location | Tests | Average level | People served |
|---|---|---|---|---|
| Yuima Municipal Water District Ida | Pauma Valley, CA | 24 of 50 | 19.7 ppb | 400 |
| Westerner Mobile Home Park | Elk Grove, CA | 1 of 1 | 17.7 ppb | 65 |
| Yak Co. - Crewport | Yakima, WA | 13 of 14 | 2.71 ppb | 192 |
| Tall Oaks Mobile Home Park | St Clair, MO | 25 of 44 | 1.56 ppb | 120 |
| Drakes Branch, Town of | Drakes Branch, VA | 1 of 1 | 1.10 ppb | 530 |
| Garden City | Garden City, NY | 51 of 732 | 0.915 ppb | 46,000 |
| Eureka | Eureka, MO | 14 of 56 | 0.911 ppb | 10,574 |
| White | White, GA | 7 of 14 | 0.780 ppb | 806 |
| Ausable Heights Water System | Keeseville, NY | 1 of 1 | 0.500 ppb | 46 |
| South Huntington Water Department | South Huntington, NY | 4 of 4 | 0.450 ppb | 81,760 |
| Marshall Community Water Association | Marshall, WA | 2 of 3 | 0.400 ppb | 74 |
| Balsam Crest Homeowners Association | Chestertown, NY | 6 of 12 | 0.358 ppb | 50 |
| Hillcrest Water District | Brewster, NY | 1 of 70 | 0.329 ppb | 305 |
| Evergreen Homeowners Association | Ballston Spa, NY | 5 of 15 | 0.320 ppb | 56 |
| Wilbur Town Of | Marshall, WA | 1 of 9 | 0.133 ppb | 914 |
| Silver Lake Institute - Castile Water District #1 | , NY | 1 of 4 | 0.125 ppb | 440 |
| Gardeau Water District | Castile, NY | 1 of 4 | 0.125 ppb | 60 |
| Perry Center Water District | Perry, NY | 1 of 4 | 0.125 ppb | 150 |
| Perry Village* | , NY | 1 of 4 | 0.125 ppb | 4,348 |
| US Army Aviation and Missile Command | Redstone Arsenal, AL | 2 of 11 | 0.118 ppb | 38,700 |
| Ladd Center Water System* | North Kingstown, RI | 4 of 24 | 0.113 ppb | 129 |
| Exeter Job Corps Center | Providence, RI | 4 of 24 | 0.113 ppb | 300 |
| Spv Water Company | Agua Dulce, CA | 2 of 16 | 0.106 ppb | 211 |
| Okanogan Water Department City Of* | Okanogan, WA | 3 of 8 | 0.1000 ppb | 2,571 |
| Progressive Flat Water Association | Tonasket, WA | 3 of 8 | 0.1000 ppb | 150 |
| Camrosa Water District | Camarillo, CA | 1 of 19 | 0.0789 ppb | 30,000 |
| Concord Water Department | Concord, MA | 3 of 41 | 0.0720 ppb | 16,402 |
| Carle Place Water District | Carle Place, NY | 22 of 232 | 0.0708 ppb | 9,005 |
| Chino Basin Desalter Authority - Desalter 1* | Ontario, CA | 2 of 230 | 0.0643 ppb | 0 |
| Danville Drive Service Area | Fitchburg, WI | 16 of 194 | 0.0594 ppb | 150 |
| Maple Bluff Waterworks | Madison, WI | 16 of 194 | 0.0594 ppb | 1,342 |
| Shorewood Hills Waterworks | Madison, WI | 16 of 194 | 0.0594 ppb | 1,670 |
| Rimrock Road Neighborhood | Fitchburg, WI | 16 of 194 | 0.0594 ppb | 135 |
| Madison Water Utility* | Madison, WI | 16 of 194 | 0.0594 ppb | 235,000 |
| Springhill Mobile Home Park | Wappingers Falls, NY | 1 of 9 | 0.0556 ppb | 150 |
| Farm-to-market Associates | Brewster, NY | 1 of 9 | 0.0556 ppb | 48 |
| Hicksville WD | Hicksville, NY | 75 of 1,391 | 0.0521 ppb | 48,000 |
| California American Water Company - Parkway | Sacramento, CA | 2 of 258 | 0.0492 ppb | 44,949 |
| Altura | Altura, MN | 1 of 13 | 0.0462 ppb | 493 |
| Bridgeton City Water Department | Bridgeton, NJ | 3 of 8 | 0.0450 ppb | 22,770 |
| Maryland American Water Company* | Hopewell, MD | 1 of 21 | 0.0429 ppb | 13,200 |
| Jurupa Community Services District* | Jurupa Valley, CA | 1 of 156 | 0.0397 ppb | 106,907 |
| Springport Water District #1 - South | Cayuga, NY | 1 of 24 | 0.0208 ppb | 500 |
| Union Springs Village* | Union Springs, NY | 1 of 24 | 0.0208 ppb | 3,000 |
| Springport Water District #1 - North | Cayuga, NY | 1 of 24 | 0.0208 ppb | 500 |
| San Bernardino City* | San Bernardino, CA | 3 of 1,768 | 0.00916 ppb | 188,931 |
| Milford City Public Water System | Milford, OH | 1 of 57 | 0.00877 ppb | 6,400 |
| Plainview WD | Plainview, NY | 2 of 1,108 | 0.00785 ppb | 35,000 |
| Parsippany-Troy Hills Water Department | Parsippany, NJ | 1 of 89 | 0.00674 ppb | 50,400 |
| Hillburn Village | Hillburn, NY | 2 of 872 | 0.00608 ppb | 950 |
* 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.
| Utility | Location | Tests | Average level | People served |
|---|---|---|---|---|
| Garden City | Garden City, NY | 51 of 732 | 0.915 ppb | 46,000 |
| Eureka | Eureka, MO | 14 of 56 | 0.911 ppb | 10,574 |
| South Huntington Water Department | South Huntington, NY | 4 of 4 | 0.450 ppb | 81,760 |
| US Army Aviation and Missile Command | Redstone Arsenal, AL | 2 of 11 | 0.118 ppb | 38,700 |
| Camrosa Water District | Camarillo, CA | 1 of 19 | 0.0789 ppb | 30,000 |
| Concord Water Department | Concord, MA | 3 of 41 | 0.0720 ppb | 16,402 |
| Madison Water Utility* | Madison, WI | 16 of 194 | 0.0594 ppb | 235,000 |
| Hicksville WD | Hicksville, NY | 75 of 1,391 | 0.0521 ppb | 48,000 |
| California American Water Company - Parkway | Sacramento, CA | 2 of 258 | 0.0492 ppb | 44,949 |
| Bridgeton City Water Department | Bridgeton, NJ | 3 of 8 | 0.0450 ppb | 22,770 |
| Maryland American Water Company* | Hopewell, MD | 1 of 21 | 0.0429 ppb | 13,200 |
| Jurupa Community Services District* | Jurupa Valley, CA | 1 of 156 | 0.0397 ppb | 106,907 |
| San Bernardino City* | San Bernardino, CA | 3 of 1,768 | 0.00916 ppb | 188,931 |
| Plainview WD | Plainview, NY | 2 of 1,108 | 0.00785 ppb | 35,000 |
| Parsippany-Troy Hills Water Department | Parsippany, NJ | 1 of 89 | 0.00674 ppb | 50,400 |
| United Water New York* | West Nyack, NY | 2 of 872 | 0.00608 ppb | 270,950 |
| City of Fresno* | Fresno, CA | 1 of 1,832 | 0.00366 ppb | 522,352 |
| Franklin Square WD | Franklin Square, NY | 1 of 442 | 0.00339 ppb | 20,000 |
| Hempstead | Hempstead, NY | 2 of 497 | 0.00235 ppb | 56,000 |
| Los Angeles Department of Water and Power* | Los Angeles, CA | 6 of 4,083 | 0.00156 ppb | 3,935,257 |
| South Farmingdale WD | Farmingdale, NY | 1 of 639 | 0.00152 ppb | 44,700 |
| Artesian Water Company* | Newark, DE | 1 of 177 | 0.00136 ppb | 301,000 |
| Pasadena* | Pasadena, CA | 1 of 2,181 | 0.000500 ppb | 165,740 |
* 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.