Tapcensus

Water quality for ZIP code 98198

ZIP 98198 covers Des Moines, SeaTac, Normandy Park, and Kent 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

Highline Water District WA5340650 · Community water system · Surface water purchased
Serves 100,170 people Rules violated, past 3 years 0 Last sanitary survey Sep 29, 2021 Distance 1.5 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
King County Water District #54
 5,373 0 1.0 mi
Marine Estates Mutual Water Assn
 38 1 3.6 mi
Kent Water Department
 166,421 1 3.9 mi
Logandale Water Assoc Inc.
 42 0 4.0 mi
Maury Mutual Water CO
 233 2 4.7 mi
King County Water District #49
 23,492 0 4.8 mi
Gold Beach Water Company
 390 1 5.4 mi
Mountain View Water District INC
 91 2 5.5 mi
King County Water District #125
 21,904 1 5.7 mi
Lakehaven Water and Sewer District
 148,809 0 5.8 mi
Tukwila Water Department
 36,298 0 5.9 mi
Crestview West Water System
 147 3 6.4 mi
Hazelwood Heights
 85 2 6.8 mi
Derbyshire Scenic Acres
 156 0 6.8 mi
King County Water District #20
 48,469 0 7.0 mi
Burton Water Cooperative
 964 1 7.0 mi
Soos Creek Water & Sewer District
 74,172 0 7.0 mi
Dockton Water Association
 992 0 7.0 mi
Water District 19
 5,335 2 7.1 mi
Lake Meridian Water District
 24,231 1 7.6 mi
Auburn City of
 107,655 1 7.9 mi
Shawnee Hill Condominium WS
 44 1 8.0 mi
Skyway Water & Sewer
 12,036 0 8.1 mi
Renton City of
 108,091 0 8.1 mi
Algona Water Dept
 3,300 1 8.1 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
Vashon Island Golf & Country Club
 226 0 0
Camp Burton Conference Center
 39 0 0
Valleyview Christian Church
 88 0 0
Montessori Spring Valley Supply
 121 1 0
Harbor Heights Water
 25 0 0
Soos Creek Salmon Hatchery
 73 0 0
Morningside Farm Water System
 65 0 0
Paradise Cove Water System
 17 0 0
Sunwater Beach
 17 1 0
Camp Sealth
 62 1 0
Danner Corp
 50 0 0
Rainier Christian School
 150 1 1
Red Dog Saloon Water System
 30 0 0
Lions Memorial Youth Camp
 61 0 0
Cascade View Rodger Scott Water
 25 1 0
Cougar / Squak Corridor
 4 0 0
Cedar Grove Composting Water System
 50 2 0
Wabash Pres. Church Supply #1
 71 0 0
Cougar Mtn. Park WT Supply Sys.
 25 0 0
Cedar Grove Water Company
 30 1 0
St. Sava Serbian Orthodox Church
 32 1 0
Green Bobbie
 80 0 0
Fraternity Snoqualmie
 34 0 0
Flaming Geyser State Park
 1,947 0 0
Issaquah Christian Church
 42 0 0
Boondocks Tavern
 30 0 0
King County Shooting Sports Park
 27 0 0
Green River Gorge Resort
 104 0 0
Kanaskat-Palmer State Park
 543 0 0
Rainbow Trout Club Homeowners Assoc
 30 0 0
Blue Sky RV Park
 68 0 0
Red Fall Quick Stop
 30 0 0
Tall Chief Resort
 136 0 0
Port of Seattle/seatac Airport
 49,483 0 0
Washington Cathedral
 1,001 0 0
Cedar Falls Supply
 184 1 0
MUD Mtn Dam Water System
 184 0 0
Shyne School Water System
 79 1 0
Snoqualmie Valley Land Company INC
 80 1 1
Carnation Farms
 179 0 0
Camp River Ranch
 76 0 0
Mount SI Motel
 45 0 0
Rogers Group Properties I LLC
 570 1 0
Rio Vista
 36 0 0
Awareness Water System
 76 0 0
Federation Forest State Park
 281 0 0
Greenwood Water Association
 12 0 0
Tinkham Campground
 57 0 0
Middle Fork Campground #2
 54 0 0
Asahel Curtis Picnic Ground East
 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.