Drinking Water Systems Reported for ZIP 98840
OKANOGAN, Washington — 3 water systems are associated with this ZIP in EPA service-area data
Largest Reported System
OKANOGAN WATER DEPARTMENT CITY OF
PWSID: WA5363200
2 EPA violation records in the five-year period ending June 30, 2026
B
Few non-health records
TapScore compliance-history grade
Other Systems Reported for This ZIP
M J TRAILER RANCH
100 served40 historical records
A
DUCK LAKE WATER ASSOCIATION
635 served50 historical records
A