Tapcensus

Water quality for ZIP code 98520

ZIP 98520 covers Aberdeen, Central Park, Ocosta, Aberdeen Gardens, Markham, and Cosmopolis in Grays Harbor County, Washington, one of 20 ZIP codes in the county. 87 active public water systems serve the county; 31 had an EPA violation in the past three years.

Most likely your provider

Illahee Oyehut WA5335450 · Community water system · Ground water purchased
Serves 971 people Rules violated, past 3 years 0 Distance 8.1 mi

Other community water systems in Grays Harbor County

34 systems, nearest first
SystemServesStatusRules violated, 3 yrDistance
Aberdeen City of
22,867 1 15.1 mi
Neilton Meadowland WD 8 a
275 1 15.2 mi
Hoquiam Water Department
11,456 0 16.0 mi
Grays Harbor CO Water Dist 2
5,112 1 16.5 mi
Monte View Estates
200 1 16.7 mi
Montesano City of
6,204 0 17.0 mi
Cosmopolis Water Department
1,812 2 17.4 mi
Harbor Mobile Estates
72 0 18.0 mi
Lake Quinault
1,003 0 18.7 mi
Paradise Water Assoc
74 0 20.1 mi
Haven by the Sea
308 1 20.5 mi
Iron Springs Park
62 0 20.6 mi
Pacific Beach/moclips
2,372 2 20.9 mi
Elma City of
6,638 1 21.0 mi
Sea View
170 2 21.1 mi
Hogans Corner
1,458 1 21.4 mi
Ocean City
237 1 21.7 mi
Vikings West Mobile Home
71 2 22.2 mi
Meadowood Development
220 1 22.3 mi
Rls 1
38 0 22.9 mi
Greenwood Mobile Home Park
350 2 23.2 mi
Forestview Senior Community LLC
92 0 23.8 mi
Ocean Shores Water Dept
9,347 0 24.7 mi
McCleary City of
2,753 0 24.9 mi
Pit Water CO 328
48 0 25.1 mi
All 35 community water systems in Grays Harbor County
Non-community systems in Grays Harbor County (52: schools, campgrounds, workplaces, restaurants)

These systems serve places you visit rather than homes.

SystemServesStatusRules violated, 3 yrUnresolved
Lil Prairie Mart
52 0 0
Big Spruce Resort
35 1 0
Wynoochee Wildwood Park
471 1 0
Camp Bethel Rustic
44 1 0
Coho Campground
152 2 0
Vaughan Pumps
85 0 0
Timberline Estates
14 0 0
Brady Food Mart
30 0 0
Friends Landing
28 0 0
Satsop School District 104
70 0 0
109 RV Park & Campground
28 0 0
Driftwood Acres
26 2 0
Copalis Rocks Water
21 0 0
Echoes of the Sea
14 0 0
Copalis Community Church
28 0 0
Griffith Priday State Park
280 0 0
Copalis RV Park
19 0 0
Park 400 Association
28 2 0
Iron Springs Resort
120 0 0
Clarks Restaurant
109 0 0
Sandpiper Beach Resort
55 0 0
Sunrise Resorts Copalis Beach
65 0 0
Quinault
47 0 0
Tidelands Campgrounds
38 0 0
Pacific Dunes Resort
7 1 0
Beachwood Resort
50 0 0
Surfcrest Properties LLC
256 0 0
Ocean Mist RV Park
56 0 0
Oceana II East
80 0 0
Gold Beach Aviation
134 0 0
Ocean City Campground
41 0 0
Harlem Ent. LLC
17 0 0
Oceana II West
66 0 0
Screamin Eagle Campground
86 0 0
Ocean Breeze Resort
687 0 0
Ocean Shores Outdoor Club
309 0 0
Artic Tavern and RV Park
58 0 0
South Arbor
101 0 0
Murphy Elma Veneer
80 1 0
Chumbley Family LLC
20 0 0
Value Ford
26 0 0
Ocean Spray Cranberries
100 0 0
Johns River Lodge
57 2 0
Briggs Nursery
150 1 0
Bay City Sausage
104 1 0
Wind Sand Estates
27 0 0
Elma Rest Area
1,122 1 0
Satsop Business Park
544 0 0
Humptulips Grocery
105 1 0
Humptulips Grange #730
100 0 0
All non-community systems
About this data

Water systems are matched to Grays Harbor 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.