Mattawa City of
Serving 1 city in WA
Mattawa City of Service Area
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This map shows the approximate service area for Mattawa City of. Actual coverage may vary. Contact the utility directly to confirm service availability at your address.
Mattawa City of Water Quality Grade
Water quality is good with minor concerns.
Grade is calculated based on contaminants exceeding health guidelines (MCLG) and EPA Maximum Contaminant Level violations. A = Excellent (90-100), B = Good (80-89), C = Fair (70-79), D = Poor (60-69), F = Failing (<60).
Is Mattawa City of Water Safe to Drink?
Mattawa City of has reported 2 contaminants above EPA health-based guidelines (MCLGs) in at least one city served. We recommend reviewing individual city reports below for specific water quality details.
This utility serves 5,015 people across 1 city in WA. Water quality can vary by location within the service area. Check individual city pages below for detailed contaminant data specific to your area.
Mattawa City of Service Area
Mattawa City of Contact & Information
Mailing Address
For hours of operation and emergency contact information, please visit the official utility website or call the main phone number.
Water Sources & Treatment
Water Sources
Treatment Methods
Recommended Water Filters for Mattawa City of
Based on water quality data from cities served by Mattawa City of, we recommend NSF-certified filters that can remove contaminants above health guidelines.
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