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EWG's Tap Water Database — 2019 UPDATE

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Chlorodifluoromethane

Status: No national drinking water standard exists

 

2015-2017:

FOUND

1

states detected

12

utilities detected

1.4 million

people served

Health concerns for chlorodifluoromethane

Harm to the liver

Change to the central nervous system

Harm to the heart and blood vessels

States reporting chlorodifluoromethane in drinking water

UTILITIES WITH CONTAMINATION
State UtilitiesPeople Served
New York121,352,508
MORE
LESS

Utilities with the highest amounts of chlorodifluoromethane, 2015-2017

ALL UTILITIES
LARGE UTILITIES
UtilityLocationTestsAverage levelPeople served
Garden CityGarden City, NY1 of 12.93 ppb46,000
Glen Cove CityGlen Cove, NY22 of 262.65 ppb28,000
Jericho Water DistrictSyosset, NY80 of 881.62 ppb58,000
Roslyn WD*Roslyn, NY10 of 100.829 ppb18,000
Glenwood Water DistrictGlenwood Landing, NY10 of 100.829 ppb1,000
WA of Great Neck NorthGreat Neck, NY32 of 780.338 ppb31,400
Smithtown WDKings Park, NY3 of 30.0168 ppb19,635
Greenport VillageGreenport, NY3 of 30.0168 ppb2,050
Stony Brook Water DistrictOakdale, NY3 of 30.0168 ppb4,836
St James WDSt James, NY3 of 30.0168 ppb10,587
Suffolk County Water Authority*Oakdale, NY3 of 30.0168 ppb1,100,000
Bethpage WDBethpage, NY1 of 690.0122 ppb33,000

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

UtilityLocationTestsAverage levelPeople served
Garden CityGarden City, NY1 of 12.93 ppb46,000
Glen Cove CityGlen Cove, NY22 of 262.65 ppb28,000
Jericho Water DistrictSyosset, NY80 of 881.62 ppb58,000
Roslyn WD*Roslyn, NY10 of 100.829 ppb18,000
WA of Great Neck NorthGreat Neck, NY32 of 780.338 ppb31,400
St James WDSt James, NY3 of 30.0168 ppb10,587
Smithtown WDKings Park, NY3 of 30.0168 ppb19,635
Suffolk County Water Authority*Oakdale, NY3 of 30.0168 ppb1,100,000
Bethpage WDBethpage, NY1 of 690.0122 ppb33,000

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