The Power of Information

National Drinking Water Database


Dichlorodifluoromethane in New York


Dichlorodifluoromethane (Freon 12) is a chlorofluorocarbon refrigerant and aerosol spray propellant; it was banned under the Montreal Protocol as of 2000 because of its ozone-depleting properties.

The Most Polluted Communities in New York

26 water utilities reported detecting Dichlorodifluoromethane in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies

Ranked by highest average Dichlorodifluoromethane level

RankSystem Population Served Positive test results of total reported tests Average Level
(Range)
1Apple Grove Trailer Park
Scottsville, NY
981 of 11.5 ppb
(1.5 ppb)
2Mountain View Estates
Stormville Rd., NY
1401 of 11.5 ppb
(1.5 ppb)
3Adirondack Airport Community
Saranac Lake, NY
905 of 51.48 ppb
(1.4 to 1.7 ppb)
4Garden City Park Wd
New Hyde Park, NY
15,50063 of 1110.99 ppb
(0 to 9.7 ppb)
5Garden City (V)
Garden City, NY
21,68643 of 2590.77 ppb
(0 to 16.25 ppb)
6Mineola (V)
Mineola, NY
20,60032 of 860.76 ppb
(0 to 9.3 ppb)
7Hempstead (V)
Hempstead, NY
56,00050 of 940.69 ppb
(0 to 4.6 ppb)
8Bedford Hills/Taconic Corr. Facilities
Bedford Hills, NY
1,1001 of 10.5 ppb
(0.5 ppb)
9Bona View Mobile Home Park
Bemus Point, NY
751 of 20.38 ppb
(0 to 0.76 ppb)
10Wild Oaks Water Company
Rockport, NY
8051 of 30.17 ppb
(0 to 0.5 ppb)

Health Based Limits for Dichlorodifluoromethane

StandardDescriptionLevel
Lifetime health-based limit, non-cancer riskConcentration of a chemical in drinking water that is not expected to cause any adverse, noncarcinogenic health effects for a lifetime of exposure. The Lifetime health-based limit (or Health Advisory, HA) is based on exposure for a a 70-kg adult consuming 2 liters of water per day. Source: U.S. Environmental Protection Agency.1000 ppb
Health-Based Screening LevelA benchmark concentration of contaminants in water that may be of potential concern for human health, if exceeded. For noncarcinogens, the HBSL represents the contaminant concentration in drinking water that is not expected to cause any adverse effects over a lifetime of exposure. For carcinogens, the HBSL range represents the contaminant concentration in drinking water that corresponds to an excess estimated lifetime cancer risk of 1 chance in 1 million to 1 chance in 10 thousand. Source: U.S. Geological Survey.1000 ppb
Drinking Water Equivalent LevelA lifetime exposure concentration protective of adverse, noncarcinogenic health effects, that assumes all of the exposure to a contaminant is from drinking water. Source: U.S. Environmental Protection Agency.5000 ppb
Children's health-based limit for 1-day exposureConcentration of a chemical in drinking water that is not expected to cause any adverse, noncarcinogenic health effects for up to one day of exposure. The One-Day health-based limit (or Health Advisory, HA) is typically set to protect a 10-kg child consuming 1 liter of water per day. Source: U.S. Environmental Protection Agency.40000 ppb
Children's health-based limit for 10-day exposureConcentration of a chemical in drinking water that is not expected to cause any adverse, noncarcinogenic effects for up to ten days of exposure. The Ten-Day health-based limit (or Health Advisory, HA) is typically set to protect a 10-kg child consuming 1 liter of water per day. Source: U.S. Environmental Protection Agency.40000 ppb

Violation Summary for Dichlorodifluoromethane in New York

Data from the U.S. Environmental Protection Agency includes the following violations of federal standards in New York since 2004

Violation TypeNumber of Violations
Failure to monitor regularly174