Drinking Water Systems Reported for ZIP 98611
CASTLE ROCK, Washington — 2 water systems are associated with this ZIP in EPA service-area data
Largest Reported System
CASTLE ROCK MUNICIPAL WATER
PWSID: WA5311800
3 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
PARADISE COVE RESORT & RV PARK
59 served3 historical records
A