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What's in my Water

Suffolk County Water Authority, Area 20

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What percentage of tests exceeded a level that could cause health effects:

7.7% 2 out of 26
PFOS Perfluorinated Chemicals

Surfactant or emulsifier; used in fire-fighting foam, circuit board etching acids, alkaline cleaners, floor polish, and as a pesticide active ingredient for insect bait traps; U.S. manufacture of PFOS phased out in 2002; however, PFOS still generated incidentally. Prolonged exposure above the level could lead to adverse health effects.

What percentage of tests showed substances that have no set health-safety level:

11.5% 3 out of 26
PFHxS Perfluorinated Chemicals

Manmade chemical; used in products to make them stain, grease, heat and water resistant

7.7% 2 out of 26
PFHpA Perfluorinated Chemicals

Manmade chemical; used in products to make them stain, grease, heat and water resistant

77.3% 34 out of 44
Hexavalent chromium Toxic substance

Used in chrome-plating, dyes, pigments, tanning leather and preserving wood, if inhaled it can cause lung cancer, stomach tumors and skin ulcers. The government is reviewing its toxicity in drinking water and has set no threshold for dangerous exposure. It was detected in 1,247 of 1,417 tests on Long Island.


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Health Concern

May cause cancer
May cause other ills

More on Long Island Water

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