MODEL IRRIGATION DIST #18
PWSID: WA5355550 · Spokane, WA · Serving 7,903 people
Type: CWSOwner: LSource: GW
Settlement eligible
Settlement details
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Upgrade to ProExceeds MCL
One or more PFAS compounds exceed EPA Maximum Contaminant Levels. Corrective action required by 2031.
Key contaminants vs MCL
EPA MCL: 4 ppt (parts per trillion) for PFOA and PFOS individually. Compliance deadline: 2031-12-31
Exact contamination levels
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Upgrade to ProDetection summary
10 ppt
Highest single detection
2025-06-16
Latest sample date
complete
Data completeness
All PFAS detection results
Source: EPA UCMR5 (UCMR5) · 174 compounds tested
| Contaminant | Result (ppt) | MCL (ppt) | Status | Sample date |
|---|
| PFDA | ND | — | Below MRL | 2025-06-16 |
| NFDHA | ND | — | Below MRL | 2025-06-10 |
| PFMBA | ND | — | Below MRL | 2025-06-10 |
| PFTA | ND | — | Below MRL | 2025-06-10 |
| PFTrDA | ND | — | Below MRL | 2025-06-10 |
Violation history(6 violations, 6 open)
Monitoring & Reporting - PFOA(PFOA)
2014-01-01 · Open · Tier 3
Monitoring & Reporting - PFHxS(PFHxS)
2014-01-01 · Open · Tier 3
Monitoring & Reporting - HFPO-DA (GenX)(HFPO-DA (GenX))
2014-01-01 · Open · Tier 3
Monitoring & Reporting - PFNA(PFNA)
2014-01-01 · Open · Tier 3
Monitoring & Reporting - PFBS(PFBS)
2014-01-01 · Open · Tier 3
Monitoring & Reporting - PFHxA(PFHxA)
2014-01-01 · Open · Tier 3
Violation details
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