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Failing Water Quality

West Nyack, NY 10994

Rockland County · Population served: 292,289

Water Systems Serving This Area

🌊
N.Y.U. HOUSING
Groundwater · Pop. 45
PWSID: NY3503034
🌊
KNOLLS WATER CO., INC.
Groundwater · Pop. 230
PWSID: NY3503563
🏔
INDIAN KILL
Surface water · Pop. 1,000
PWSID: NY3503592
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BLUE LAKE
Surface water · Pop. 1,850
PWSID: NY3512132
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STERLING LAKE
Surface water · Pop. 225
PWSID: NY3512133

Contaminants Detected

ContaminantDetected LevelEPA MCLHealth GuidelineStatus
Lead
15.1
15 ppb 1 ppb Exceeded
Copper
2310.0
1300 ppb 300 ppb Exceeded

PFAS / Forever Chemicals

17 detected 4 above EPA limits
CompoundLevelEPA MCLHealth GuidelineStatus
PFOA14.0 ppt4 ppt4 pptExceeded
6:2 FTS12.0 pptNo standard—Unregulated
PFPeA10.0 pptNo standard—Unregulated
PFOA9.8 ppt4 ppt4 pptExceeded
PFHxA7.6 pptNo standard400 pptUnregulated
PFBA6.8 pptNo standard500 pptUnregulated
PFOS6.8 ppt4 ppt4 pptExceeded
PFHxS6.2 ppt10 ppt10 pptBelow limit

Violation History (Last 5 Years)

135Total (5yr)
118Health-Based
4Major