Oversight of Public Water Systems (2017-S-45)

Supplemental Maps of Unregulated Contaminants

• Click on each county for a supplemental map showing the proportion of selected contaminants.
  • Albany and Saratoga counties
  • Erie County
  • Nassau and Suffolk counties
  • Onondaga County
  • Orange, Rockland, and Westchester counties
• Click on each contaminant to view occurrence at the county level.
  • 1,1-dichloroethane
  • 1,2,3-trichloropropane
  • 4-androstene-3,17-dione
  • bromomethane
  • chloromethane (methyl chloride)
  • chlorate
  • chlorofluorocarbon (HCFC-22)
  • chromium (Cr)
  • chromium (VI)
  • cobalt
  • molybdenum
  • perfluoroheptanoic acid (PFHpA)
  • perfluorononanoic acid (PFNA)
  • perfluorohexane sulfonate (PFHxS)
  • strontium
  • testosterone
  • vanadium
• Link to full audit report 2017-S-45