National Drinking Water Database
National Drinking Water Database - Chemical Contaminants
Chlorodifluoromethane
Status: Unregulated - EPA has not established a maximum legal limit in tapwater for this contaminant.
Chlorodifluoromethane is a manufactured chemical historically used as a refrigerant and as an intermediate in the production of fluoropolymers; scheduled for phase-out due to its ozone depletion potential and potent greenhouse gas activity.
Detected |
Found above health guidelines |
Found above legal limit |
|
|---|---|---|---|
| States | 1 |
- |
- |
| Water utilities | 3 |
- |
- |
| People Served | 132,400 |
- |
- |
Chlorodifluoromethane Exposure by State
Water utilities in 1 states have reported detecting Chlorodifluoromethane in treated tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies.
| State | Water Suppliers with Chlorodifluoromethane contamination | |
|---|---|---|
| Systems | Population | |
| New York | 3 | 132,400 |
| Total | 3 | 132,400 |
The Most Polluted Communities
3 water utilities reported detecting Chlorodifluoromethane in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies
Ranked by highest average Chlorodifluoromethane level
| Rank | System | Population Served | Positive test results of total reported tests | Average Level (Range) |
|---|---|---|---|---|
| 1 | Manhasset Lakeville Wd Manhasset, NY | 43,000 | 42 of 78 | 1.83 ppb (0 to 15 ppb) |
| 2 | Jericho Wd Syosset, NY | 58,000 | 4 of 4 | 0.65 ppb (0.6 to 0.7 ppb) |
| 3 | WA of Great Neck North Great Neck, NY | 31,400 | 2 of 25 | 0.03 ppb (0 to 0.5 ppb) |
Testing Summary for Chlorodifluoromethane
| Are tests routinely required for Chlorodifluoromethane by federal law? | No |
| Water suppliers reporting tests for Chlorodifluoromethane (2006-2009): | 5 of 47,576 |
| Average testing rate for water supplier reporting tests (2006-2009): | 5.5 per year |