Public water system · WA53NP510
ActiveOzette Lake
At a glance
Ozette Lake (PWSID WA53NP510) is an active transient non-community water system in Clallam County, Washington. It reports serving 224 people through 5 service connections. Its primary water source is groundwater, and EPA lists it as owned by the federal government. EPA's records list 4 violations for this system; none is health-based, and the most recent began in January 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
224
Service connections
5
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Ozette Lake compare with other water systems in Clallam County?
By EPA's size categories, Ozette Lake is a very small system (500 people or fewer). Clallam County has 100 active public water systems. Its population served is well below the county average of 879 people per system, and accounts for 0.3% of the 87,933 people reported by systems filed under the county. Across Washington, the 4,705 active systems average 2,172 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Ozette Lake is about 56% above that figure.
What does “transient non-community water system” mean?
A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. Washington has 1,913 active transient non-community water systems, 41% of the state's 4,705 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 4,370 Washington systems (93%) list groundwater as their primary source.
Who owns and regulates Ozette Lake?
EPA lists Ozette Lake as owned by the federal government. The WA state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 12 of the 100 active systems in Clallam County (12%) are also owned by the federal government.
Does Ozette Lake have drinking water violations?
EPA's records list 4 violations for this system; none is health-based, and the most recent began in January 2025. The violations listed here began between December 2016 and January 2025. By type: 3 monitoring and 1 monitoring and reporting. The contaminant or rule involved most often is Revised Total Coliform Rule (3 of them). EPA lists 3 as resolved and 1 as archived. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2025-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Archived |
| 2020-11-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2019-12-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2016-12-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
All 4 violations in EPA's records, newest first.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.
Ozette Lake: frequently asked questions
Who runs Ozette Lake?
Ozette Lake (PWSID WA53NP510) is a transient non-community water system owned by the federal government. It is regulated by the WA state drinking water program.
How many people does Ozette Lake serve?
Ozette Lake reports serving 224 people through 5 service connections in Clallam County, Washington.
Where does Ozette Lake get its water?
EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.
Does Ozette Lake have any drinking water violations?
EPA's records list 4 violations for this system; none is health-based, and the most recent began in January 2025. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.
Is Ozette Lake's water safe to drink?
AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. EPA's records list 4 violations for this system; none is health-based, and the most recent began in January 2025. For current results, consult EPA ECHO, or the WA state drinking water program.
Where can I find Ozette Lake's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Ozette Lake is a transient non-community water system, so it is not required to publish one; like every public water system, it must notify the people it serves about violations under EPA's public notification rules.
Other water systems in Clallam County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Port Angeles City of | Clallam | 28,067 | Community | Surface water |
| Sequim City of | Clallam | 14,293 | Community | Groundwater |
| Port Angeles Composite | Clallam | 8,872 | Community | Surface water |
| Forks Municipal Water Dept | Clallam | 3,468 | Community | Groundwater |
| Dry Creek Water Association | Clallam | 3,030 | Community | Groundwater |
| West Sequim Bay Inc. | Clallam | 2,759 | Community | Groundwater |
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About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “Ozette Lake, PWSID WA53NP510, Washington”, https://aquacensus.com/water-systems/washington/ozette-lake-wa53np510 (data as of October 1, 2026).