Tapcensus

Water quality for ZIP code 98103

ZIP 98103 covers Seattle in King County, Washington, one of 86 ZIP codes in the county. 217 active public water systems serve the county; 86 had an EPA violation in the past three years.

Most likely your provider

Seattle Public Utilities WA5377050 · Community water system · Surface water
Serves 1,161,961 people Rules violated, past 3 years 0 Last sanitary survey Jul 28, 2025 Distance 4.0 mi

Your location is within the outer bounds of this system's EPA service area.

View system details EPA facility report

Other community water systems in King County

155 systems, nearest first
SystemServesStatusRules violated, 3 yrDistance
Highlands Utility District
 275 0 4.4 mi
North City Water District
 32,847 0 5.2 mi
Lake Forest Park Water District
 3,171 0 5.9 mi
Grandview Condominiums
 679 2 5.9 mi
Trails End
 117 0 6.1 mi
Northshore Utility District
 99,789 0 6.4 mi
Kirkland City of
 69,243 0 7.0 mi
Bothell Water City of
 33,643 1 8.7 mi
Beaux Arts Water Department
 345 1 9.3 mi
Mercer Island City of
 31,057 0 9.8 mi
Bellevue City of
 321,349 0 10.2 mi
Redmond Water System City of
 163,335 0 11.0 mi
Woodinville Water District
 66,699 0 12.1 mi
King County Water District #117
 95 0 12.7 mi
Coal Creek Utility District
 15,989 0 12.7 mi
King County Water District #20
 48,469 0 13.2 mi
Union Hill Water Association INC
 8,720 0 13.4 mi
NE Sammamish Sewer & Water District
 9,702 0 13.4 mi
Skyway Water & Sewer
 12,036 0 13.8 mi
Rakwanna Park Water Sys INC
 90 2 14.0 mi
King County Water District #125
 21,904 1 14.7 mi
Edgehill Water Assn
 109 2 14.9 mi
Heights Water
 2,051 1 15.0 mi
Tukwila Water Department
 36,298 0 15.2 mi
Dawnbreaker Water Association
 168 1 15.4 mi
All 156 community water systems in King County
Non-community systems in King County (61: schools, campgrounds, workplaces, restaurants)

These systems serve places you visit rather than homes.

SystemServesStatusRules violated, 3 yrUnresolved
Washington Cathedral
 1,001 0 0
Shyne School Water System
 79 1 0
Cougar Mtn. Park WT Supply Sys.
 25 0 0
Red Fall Quick Stop
 30 0 0
Cougar / Squak Corridor
 4 0 0
Carnation Farms
 179 0 0
Issaquah Christian Church
 42 0 0
Rainier Christian School
 150 1 1
Tall Chief Resort
 136 0 0
Fraternity Snoqualmie
 34 0 0
Cedar Grove Composting Water System
 50 2 0
Green Bobbie
 80 0 0
Cedar Grove Water Company
 30 1 0
Awareness Water System
 76 0 0
St. Sava Serbian Orthodox Church
 32 1 0
Camp River Ranch
 76 0 0
Vashon Island Golf & Country Club
 226 0 0
Camp Burton Conference Center
 39 0 0
Red Dog Saloon Water System
 30 0 0
Lions Memorial Youth Camp
 61 0 0
Blue Sky RV Park
 68 0 0
Rio Vista
 36 0 0
Valleyview Christian Church
 88 0 0
Sunwater Beach
 17 1 0
Harbor Heights Water
 25 0 0
Paradise Cove Water System
 17 0 0
Camp Sealth
 62 1 0
Port of Seattle/seatac Airport
 49,483 0 0
Morningside Farm Water System
 65 0 0
Soos Creek Salmon Hatchery
 73 0 0
Snoqualmie Valley Land Company INC
 80 1 1
Montessori Spring Valley Supply
 121 1 0
King County Shooting Sports Park
 27 0 0
Danner Corp
 50 0 0
Cascade View Rodger Scott Water
 25 1 0
Mount SI Motel
 45 0 0
Cedar Falls Supply
 184 1 0
Wabash Pres. Church Supply #1
 71 0 0
Boondocks Tavern
 30 0 0
Flaming Geyser State Park
 1,947 0 0
Green River Gorge Resort
 104 0 0
Rainbow Trout Club Homeowners Assoc
 30 0 0
Kanaskat-Palmer State Park
 543 0 0
Rogers Group Properties I LLC
 570 1 0
Middle Fork Campground #2
 54 0 0
Tinkham Campground
 57 0 0
MUD Mtn Dam Water System
 184 0 0
Money Creek Campground
 61 0 0
Asahel Curtis Picnic Ground East
 80 1 0
Asahel Curtis Picnic Ground West
 80 1 0
All non-community systems
About this data

Water systems are matched to King County, the county this ZIP code lies in, nearest to the ZIP code's centre first. Your exact provider depends on your address and connection; the largest community water system in a county is usually the city or town utility. Distances are measured to the centre of the service area EPA publishes for the system.

ZIP code areas and town boundaries come from the U.S. Census Bureau's 2020 ZCTA files.

Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Washington records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet. Retrieved from ECHO on Oct 11, 2026.