Tapcensus

Water quality for ZIP code 98158

ZIP 98158 covers SeaTac 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

King County Water District #125 WA5341998 · Community water system · Surface water purchased
Serves 21,904 people Rules violated, past 3 years 1 Last sanitary survey Aug 31, 2022 Distance 1.7 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 #49
 23,492 0 1.7 mi
Tukwila Water Department
 36,298 0 2.5 mi
Highline Water District
 100,170 0 2.7 mi
King County Water District #20
 48,469 0 3.0 mi
King County Water District #54
 5,373 0 3.3 mi
Skyway Water & Sewer
 12,036 0 4.5 mi
Renton City of
 108,091 0 5.4 mi
Mountain View Water District INC
 91 2 5.6 mi
Kent Water Department
 166,421 1 5.6 mi
Marine Estates Mutual Water Assn
 38 1 5.9 mi
Maury Mutual Water CO
 233 2 6.5 mi
Soos Creek Water & Sewer District
 74,172 0 6.6 mi
Maplewood Addition Water Coop
 435 0 6.9 mi
Water District 19
 5,335 2 7.0 mi
Logandale Water Assoc Inc.
 42 0 7.4 mi
Heights Water
 2,051 1 7.4 mi
Gold Beach Water Company
 390 1 7.7 mi
Burton Water Cooperative
 964 1 8.3 mi
Westside Water Assn
 562 1 8.5 mi
Mercer Island City of
 31,057 0 8.6 mi
Valley View Mobile Park LLC
 126 0 8.8 mi
Crestview West Water System
 147 3 8.9 mi
Coal Creek Utility District
 15,989 0 9.0 mi
Derbyshire Scenic Acres
 156 0 9.2 mi
Lake Meridian Water District
 24,231 1 9.3 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
Rainier Christian School
 150 1 1
Harbor Heights Water
 25 0 0
Sunwater Beach
 17 1 0
Paradise Cove Water System
 17 0 0
Cougar / Squak Corridor
 4 0 0
Camp Sealth
 62 1 0
Red Dog Saloon Water System
 30 0 0
Cougar Mtn. Park WT Supply Sys.
 25 0 0
Morningside Farm Water System
 65 0 0
Soos Creek Salmon Hatchery
 73 0 0
Lions Memorial Youth Camp
 61 0 0
Cedar Grove Composting Water System
 50 2 0
Montessori Spring Valley Supply
 121 1 0
Cedar Grove Water Company
 30 1 0
Danner Corp
 50 0 0
St. Sava Serbian Orthodox Church
 32 1 0
Green Bobbie
 80 0 0
Fraternity Snoqualmie
 34 0 0
Issaquah Christian Church
 42 0 0
Cascade View Rodger Scott Water
 25 1 0
Wabash Pres. Church Supply #1
 71 0 0
Flaming Geyser State Park
 1,947 0 0
King County Shooting Sports Park
 27 0 0
Blue Sky RV Park
 68 0 0
Boondocks Tavern
 30 0 0
Red Fall Quick Stop
 30 0 0
Green River Gorge Resort
 104 0 0
Washington Cathedral
 1,001 0 0
Tall Chief Resort
 136 0 0
Rainbow Trout Club Homeowners Assoc
 30 0 0
Kanaskat-Palmer State Park
 543 0 0
Port of Seattle/seatac Airport
 49,483 0 0
Shyne School Water System
 79 1 0
Carnation Farms
 179 0 0
Camp River Ranch
 76 0 0
Snoqualmie Valley Land Company INC
 80 1 1
Cedar Falls Supply
 184 1 0
Mount SI Motel
 45 0 0
Rio Vista
 36 0 0
Rogers Group Properties I LLC
 570 1 0
MUD Mtn Dam Water System
 184 0 0
Awareness Water System
 76 0 0
Tinkham Campground
 57 0 0
Federation Forest State Park
 281 0 0
Middle Fork Campground #2
 54 0 0
Greenwood Water Association
 12 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.