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Failing Water Quality

Spokane, WA 99217

Spokane County · Population served: 356,142

Water Systems Serving This Area

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DUFORT WATER ASSOCIATION
Groundwater · Pop. 216
PWSID: ID1090268
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MOUNT ST MICHAELS SCHOOL & CHURCH
Groundwater · Pop. 162
PWSID: WA5356557
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North Spokane Irrigation District 8
Groundwater · Pop. 2,214
PWSID: WA5361300
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SPOKANE CITY OF
Groundwater · Pop. 343,167
PWSID: WA5383100
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TRENTWOOD IRRIGATION DISTRICT 3
Groundwater · Pop. 4,228
PWSID: WA5389250

Contaminants Detected

ContaminantDetected LevelEPA MCLHealth GuidelineStatus
Lead
23.3
15 ppb 1 ppb Exceeded

PFAS / Forever Chemicals

9 detected 3 above EPA limits
CompoundLevelEPA MCLHealth GuidelineStatus
PFOS12.0 ppt4 ppt4 pptExceeded
PFOS6.1 ppt4 ppt4 pptExceeded
PFOA5.1 ppt4 ppt4 pptExceeded
PFBS4.9 ppt2000 ppt100 pptBelow limit
PFHxA4.0 pptNo standard400 pptUnregulated
PFBS3.9 ppt2000 ppt100 pptBelow limit
PFPeA3.9 pptNo standard—Unregulated
PFHxA3.5 pptNo standard400 pptUnregulated

Violation History (Last 5 Years)

283Total (5yr)
0Health-Based
277Major