Drinking Water Systems Reported for ZIP 99349
Mattawa, Washington — 4 water systems are associated with this ZIP in EPA service-area data
Largest Reported System
Mattawa City of
PWSID: WA5352000
2 EPA violation records in the five-year period ending June 30, 2026
C
Some recent records
TapScore compliance-history grade
Other Systems Reported for This ZIP
SENTINEL GAP WATER ASSN
226 served38 historical records3 recent
C
BEVERLY WATER DISTRICT
120 served128 historical records4 recent
C
DESERT AIRE OWNER ASSN
2,856 served104 historical records
A