Tap Water Lookup

County · Washington

Grays Harbor County, Washington: drinking water records

Explore EPA records for 40 community water systems across 20 ZIP codes in Grays Harbor County, then find water-testing resources and available recent monitoring-station readings.

In focus40Community water systems
Public records. Clearer context.

Data as of EPA UCMR 5 final release, August 2026 (file dated Aug 28, 2026) · EPA SDWIS 2026Q2 (file dated Jul 9, 2026). How we build these pages

Drinking-water records

EPA survey and compliance records are historical reports. UCMR 5 results are available for 7 of the 40 listed systems in this snapshot. A system with no reported PFAS detection is not a test of every tap or every contaminant.

7
systems in EPA's PFAS survey
0
systems where PFAS was found
0
systems at or above the PFOA or PFOS limit, on the yearly-average basis EPA uses
15
systems that have reached the lead action level
6
systems with a health-based violation since 2016

System population figures are summed from EPA registry records and can overlap where wholesalers and retail systems serve the same people. They are not a Census county-population estimate.

Water systems in this county

All 40 active community systems in the available county records, sorted by record completeness. Scroll the table to explore more systems.

Water systemPeople servedPFAS survey resultsPFAS foundHealth-based violationsLead, 9 in 10 homes at or below
Westport Water Department WA53953005,346180042.9 ppb
Aberdeen City of WA530005022,867120000 ppb
Hoquiam Water Department WA533435011,456120001.2 ppb
Ocean Shores Water Dept WA53630089,34760000 ppb
Elma City of WA53231006,638120001.4 ppb
Montesano City of WA53560006,204120003.6 ppb
Grays Harbor Co Water Dist 2 WA53292505,11260006.4 ppb
Taholah 1053000181,6000041 ppb
Qui Nai Elt Village 1053001332070020.8 ppb
Queets 10530001720000100 ppb
Sea View WA53073141700010.5 ppb
Olympic Park Trailer Court 1053000861690010 ppb
Mccleary City of WA53522502,7530002 ppb
Pacific Beach/Moclips WA53003332,3720002.1 ppb
Cosmopolis Water Department WA53150501,8120001.2 ppb
Hogans Corner WA53AA5541,4580007 ppb
Oakville City of WA53627501,3250006.2 ppb
Grays Harbor Co Water Dist 1 WA53292001,3020000 ppb
Lake Quinault WA53703501,00300010.5 ppb
Illahee Oyehut WA53354509710003 ppb
Greenwood Mobile Home Park WA53298163500000 ppb
Haven By the Sea WA53318203080003.1 ppb
Ocean City WA53010882370007.4 ppb
Neilton Meadowland WD 8 a WA53587502220002.5 ppb
Meadowood Development WA53533652200001 ppb
Monte View Estates WA53559352000002 ppb
Malone WA53506001810002.8 ppb
Country Estates WA53155051500001.8 ppb
Santiago Water Association 105300081950009.9 ppb
Forestview Senior Community LLC WA5305811920000 ppb
Bay City Properties WA5304847900000 ppb
Paradise Water Assoc WA5313960740001.6 ppb
Harbor Mobile Estates WA5331005720001 ppb
Vikings West Mobile Home WA5391910710000.6 ppb
Iron Springs Park WA5336020620005.7 ppb
Pit Water Co 328 WA5305956480000 ppb
Rustemeyer Mobile Home Park WA5375028440000 ppb
Rls 1 WA5312751380001 ppb
Elma Evergreen Village WA5324155290003.8 ppb
Ocosta Mobile Home Park LLC WA5396887260006.7 ppb

USGS · Monitoring stations

The water, more recently.

Available station readings in Grays Harbor County, Washington. Each measurement keeps its time, unit and original source.

These readings describe water at a monitoring station. They do not test your tap, measure PFAS or lead, or determine whether water is safe to drink or swim in.

Recent observations load when this section comes into view.

Station coverage and available measurements vary by county.

Explore USGS Water Data
How these readings update

We check for updates every 10 minutes while this section is visible and show supported observations from the last 48 hours. The time beside a reading is when USGS measured it; the checked time is when our service retrieved the response. We mark a reading more than 6 hours old as older. Provisional observations can change after USGS review. A missing reading does not mean zero or clean water.

Temperature, pH, dissolved oxygen, turbidity, conductivity, streamflow and water level are shown only where a station reports them. Different measurements have different units and sampling intervals. USGS data and documentation.

Your next step

Water testing, reports & local help.

Use these official directories to find your drinking-water agency, a certified laboratory and public water records. We have not yet added an individually reviewed local resource list for this county.

Official national directories

Water testing

Find your state’s private-well program

EPA’s state directory points well owners to local program information. Services and eligibility vary by state and county.

U.S. Environmental Protection Agency
Source reviewed · Source updated

Water testing

Find a certified drinking-water laboratory

Use EPA’s directory to reach your state’s laboratory certification program. EPA does not provide on-request testing of residential drinking water.

U.S. Environmental Protection Agency
Source reviewed · Source updated

Public records

Find your utility’s Consumer Confidence Report

EPA links to community water-system reports and explains how to read them. Look for your actual supplier rather than assuming every address in a county shares one system.

U.S. Environmental Protection Agency
Source reviewed · Source updated

Public records

Explore USGS water observations

Find current and historical observations from USGS monitoring locations, including available stream, lake, and groundwater data. Measurements vary by station and do not replace a test of your household water.

U.S. Geological Survey
Source reviewed

A county overview cannot identify every property’s water provider. If you use a public water system, confirm its name on your bill and request its annual Consumer Confidence Report. Private wells need their own testing; public-system records do not describe a private well.

Understand water testing and laboratory reports

Resource descriptions are compiled by Tap Water Lookup. Review dates describe our source check, not a new water sample. How we review sources · Suggest a correction

Explore your area

Local coverage in Grays Harbor County

20ZIP areas in this overview

Explore the water-system records, recent station readings and testing resources on this county page. They describe the systems and stations identified in each section; they are not a separate water test for every community.

Towns and communities

  • Aberdeen
  • Amanda Park
  • Copalis Beach
  • Cosmopolis
  • Hoquiam
  • Humptulips
  • Malone
  • McCleary
  • Moclips
  • Montesano
  • Neilton
  • Oakville
  • Ocean Shores
  • Pacific Beach
  • Satsop
  • Taholah
  • Westport
Explore water-system recordsFind water-testing resources
View ZIP areas and understand coverage
  • 98520Aberdeen
  • 98526Amanda Park
  • 98535Copalis Beach
  • 98536Copalis Beach
  • 98537Cosmopolis
  • 98541Malone
  • 98550Hoquiam
  • 98552Humptulips
  • 98557McCleary
  • 98559Malone
  • 98562Moclips
  • 98563Montesano
  • 98566Neilton
  • 98568Oakville
  • 98569Ocean Shores
  • 98571Pacific Beach
  • 98575
  • 98583Satsop
  • 98587Taholah
  • 98595Westport

These Census ZIP Code Tabulation Areas are grouped here by their largest county overlap. A ZIP area can cross county lines and contain several water suppliers or private wells. Place labels reflect Census geography, not verified postal city names or utility service boundaries.

Records for these areas are currently presented in this county overview rather than individual ZIP reports. An unpublished report does not mean there are no water records. Confirm your supplier on your water bill; if you use a private well, testing your own well is the relevant next step.

Beyond this county page

Keep reading. Compare nearby.

PFASReading PFAS survey resultsWhat a detection, a reporting level and a yearly average mean in EPA’s PFAS survey records.LeadChoosing a lead filter15 systems here have reached the lead action level. See how to check a filter’s lead-reduction certification.Your utilityFind your annual water reportConfirm the supplier on your bill, then read its Consumer Confidence Report for local results.

Counties near Grays Harbor County

All Washington counties

Sources and scope

EPA UCMR 5 occurrence data, samples collected 2023-01-03 – 2026-06-17, final release, August 2026 (file dated Aug 28, 2026); EPA SDWIS via ECHO, 2026Q2 extract (file dated Jul 9, 2026); EPA service-area boundaries v3.0; Census 2020 ZCTAs. Database prepared 2026-09-03.

Counts cover the systems that report this county to EPA. A water system may cross county lines. "Found" means at least one result at or above the laboratory reporting level; it is not a compliance finding.

Compiled by Tap Water Lookup from the sources identified on this page. Read the methodology and review process.

Keep exploring

Every record tells
part of the story.

Find a place. Read the measurements.
Understand the context.

Explore water records