Tapcensus

Water quality in SeaTac, Washington

SeaTac is in King County. 217 active public water systems serve the county; 86 had an EPA violation in the past three years.

Most likely your provider

Tukwila Water Department WA5389500 · Community water system · Surface water purchased
Serves 36,298 people Rules violated, past 3 years 0 Last sanitary survey Sep 4, 2024 Distance 2.5 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 #125
 21,904 1 2.1 mi
Highline Water District
 100,170 0 2.2 mi
King County Water District #49
 23,492 0 2.3 mi
King County Water District #54
 5,373 0 3.0 mi
King County Water District #20
 48,469 0 3.5 mi
Skyway Water & Sewer
 12,036 0 4.6 mi
Kent Water Department
 166,421 1 5.0 mi
Mountain View Water District INC
 91 2 5.0 mi
Renton City of
 108,091 0 5.2 mi
Marine Estates Mutual Water Assn
 38 1 5.8 mi
Soos Creek Water & Sewer District
 74,172 0 6.0 mi
Maplewood Addition Water Coop
 435 0 6.5 mi
Maury Mutual Water CO
 233 2 6.6 mi
Logandale Water Assoc Inc.
 42 0 6.8 mi
Water District 19
 5,335 2 7.4 mi
Gold Beach Water Company
 390 1 7.7 mi
Heights Water
 2,051 1 8.0 mi
Crestview West Water System
 147 3 8.3 mi
Valley View Mobile Park LLC
 126 0 8.4 mi
Derbyshire Scenic Acres
 156 0 8.5 mi
Burton Water Cooperative
 964 1 8.5 mi
Lake Meridian Water District
 24,231 1 8.6 mi
Mercer Island City of
 31,057 0 8.9 mi
Hazelwood Heights
 85 2 8.9 mi
Westside Water Assn
 562 1 9.0 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
Valleyview Christian Church
 88 0 0
Camp Burton Conference Center
 39 0 0
Rainier Christian School
 150 1 1
Harbor Heights Water
 25 0 0
Cougar / Squak Corridor
 4 0 0
Red Dog Saloon Water System
 30 0 0
Soos Creek Salmon Hatchery
 73 0 0
Sunwater Beach
 17 1 0
Paradise Cove Water System
 17 0 0
Lions Memorial Youth Camp
 61 0 0
Cougar Mtn. Park WT Supply Sys.
 25 0 0
Camp Sealth
 62 1 0
Morningside Farm Water System
 65 0 0
Cedar Grove Composting Water System
 50 2 0
Montessori Spring Valley Supply
 121 1 0
Danner Corp
 50 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
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
Kanaskat-Palmer State Park
 543 0 0
Rainbow Trout Club Homeowners Assoc
 30 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
MUD Mtn Dam Water System
 184 0 0
Rogers Group Properties I LLC
 570 1 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, nearest to SeaTac 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.

Town locations and ZIP code areas come from U.S. Census Bureau 2020 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.