Home / Wyoming / 82190
D
36

Poor Water Quality

Yellowstone National Park, WY 82190

Park County · Population served: 16,200

Water Systems Serving This Area

🌊
YNP - LAKE VILLAGE
Groundwater · Pop. 5,925
PWSID: WY5680079
🏔
YNP-OLD FAITHFUL
Surface water · Pop. 7,675
PWSID: WY5680085
🏔
YNP-MAMMOTH HOT SPRINGS
Surface water · Pop. 2,600
PWSID: WY5680092

Contaminants Detected

ContaminantDetected LevelEPA MCLHealth GuidelineStatus
Lead
15.0
15 ppb 1 ppb Warning

Violation History (Last 5 Years)

145Total (5yr)
21Health-Based
102Major