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Review government records associated with Sequim, Washington.
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Check your water bill for your utility name and confirm the reporting year. See EPA’s guide to finding your annual water quality report.
Public water-system records for Sequim, WA from EPA SDWIS.
Sequim City of
Active monitoring or reporting issue detected in EPA SDWIS.
Reviewed: active/open records as of Q1 2026
City listed in EPA records · Serves 14,293 people
Data from EPA SDWIS
PFAS screening separates EPA UCMR5 drinking-water monitoring from nearby DoD PFAS investigation-site records; EPA samples shown are from Apr 2023 to Oct 2023.
Drinking Water PFAS Monitoring
EPA UCMR5 samples public water systems. These results are separate from nearby PFAS cleanup or investigation-site records.
PFAS detections below EPA limits.
Nearby PFAS Investigation Sites
DoD records are nearby site investigations, not Sequim drinking-water detections. Record names come from the source database and can be broad.
No DoD PFAS investigation records shown for this report.
EPA ATTAINS records identify assessed water bodies that do not meet water-quality standards for designated uses.
Johnson Creek-Frontal Sequim Bay
Reported: Nov 2026
Health-relevant causes: Pathogens
Affected uses: Ecological, Recreation
Data from EPA ATTAINS
NPDES permits regulate pollutant discharges into U.S. waterways. Facilities must report compliance quarterly.
Violation records
Last inspected: Dec 2025
Data from EPA ECHO
To investigate water contamination, check the sampling locations, dates and results below. For tap water records, see Drinking water quality above.
Reviewed: source records as of 2026
Review historical EPA air pollution records, including monitoring and facility emissions where available. For current conditions, check local air quality on AirNow.
Clallam County
Assessment year: 2020
According to EPA, a cancer risk of 20-in-1-million means that for every 1 million people continuously exposed to these air toxics over a 70-year lifetime, an estimated 20 may develop cancer from that exposure. This is in addition to cancer risk from all other causes.
Top modeled source groups
Data from EPA AirToxScreen
No EPA nonattainment designation records shown for this report.
Reviewed: source records as of Q4 2025
Reviewed: source records as of 2024
Reviewed: source query run Nov 2026
Brownfield sites are properties where redevelopment is complicated by the presence of hazardous substances.
Open data source: Search EPA ECHO1 site with active cleanup or investigation status
526 S 9th St, Sequim
Reported: Feb 2026
State environmental agencies maintain cleanup site databases that include state Superfund, voluntary cleanup, and brownfield remediation programs. These programs track additional sites beyond those on the federal NPL.
1 site with active cleanup or investigation
822 E Washington St, Sequim
0.4 miles away · Clallam County
Reported: Nov 2026
Data from EPA ECHO
No release reports shown in this group.
Reviewed: active/open records as of 2018
Data from EPA UST Finder
Reviewed: reporting year 2024
Formerly Used Defense Sites are properties previously owned by, leased to, or otherwise possessed by the United States and under the jurisdiction of the Secretary of Defense. The FUDS program addresses environmental restoration at these properties.
Open data source: USACE FUDSSites regulated by the Mine Safety and Health Administration, including mines, sand and gravel operations, and portable crushers. Status and type are from the MSHA Mine Data Retrieval System. Records with active/intermittent status dates older than 5 years are shown as older records rather than current active sites.
No records shown in this group.
Reviewed: status dates within last 5 years
Data from MSHA
Clallam County, WA
EPA Radon Zone Map (June 2024 release)
Clallam County is EPA Radon Zone 3 (low potential). EPA defines Zone 3 counties as having predicted average indoor screening levels below 2 pCi/L.
Radon levels can vary from home to home, so EPA recommends testing the property to know its indoor level.
FEMA flood zones describe mapped flood hazards. Look up a specific address with FEMA.
Minimal flood hazard — outside the 1% and 0.2% annual chance floodplains.
Results use an earlier stored RMP inventory. Current EPA ECHO location coverage is unverified.
No EPA ECHO RMP facility records with a usable location matched this city report.
Health outcomes from County Health Rankings. Values shown alongside state and national averages.
Clallam County, WashingtonPop. 77,805
County Health Rankings edition: 2024
Premature Death
Poor or Fair Health
Poor Physical Health Days
Poor Mental Health Days
Adult Smoking
Adult Obesity
Air Pollution - Particulate Matter
Drinking water violation indicator
Diabetes Prevalence
Life Expectancy
| Indicator | County | State | National |
|---|---|---|---|
| Premature Death | 8,106 | 6,333 | 7,972 |
| Poor or Fair Health | 15.4% | 13.8% | 14.2% |
| Poor Physical Health Days | 3.9 | 3.5 | 3.3 |
| Poor Mental Health Days | 5.5 | 5.2 | 4.8 |
| Adult Smoking | 14.6% | 10.8% | 15.0% |
| Adult Obesity | 30.2% | 28.7% | 34.0% |
| Air Pollution - Particulate Matter | 5.1 | 7.1 | 7.3 |
| Drinking water violation indicator | No | N/A | N/A |
| Diabetes Prevalence | 8.5% | 7.9% | 9.6% |
| Life Expectancy | 77.9 | 79.4 | 77.6 |
EPA testing found PFAS in water samples from the City of Sequim. Results dated Apr 12, 2023 to Oct 25, 2023 include PFBS at 0.0032 to 0.0058 micrograms per liter.
Check with the utility that serves your address for its testing results.
EPA drinking water records on this page list 1 violation for the City of Sequim.
Check your water bill to identify the utility serving your address. Ask that utility about current drinking water advisories.
We don't have air monitoring measurements for Sequim yet.
The radon data for Sequim covers Clallam County. EPA places this area in Zone 3, with a predicted average indoor radon screening level below 2 picocuries per liter.
No Superfund sites were returned for this city report.
This city report shows 2 brownfield sites: Mat; Norton.
The county data for Sequim reports a life expectancy of 77.9 years in Clallam County, Washington.
The figure is from the 2024 edition of County Health Rankings, a University of Wisconsin program that publishes county health statistics.
The county data for Sequim reports 8,106 years of life lost to deaths before age 75 per 100,000 residents in Clallam County, Washington. This measure adds up the years lost to early deaths and adjusts for differences in population age.
The figure is from the 2024 edition of County Health Rankings, a University of Wisconsin program that publishes county health statistics.
The county data for Sequim lists fine-particle pollution (PM2.5) at 5.1 micrograms per cubic meter in Clallam County, Washington.
The figure is from the 2024 edition of County Health Rankings, a University of Wisconsin program that publishes county health statistics.