Public water system · WA5322209

Active

Nisqually National Wildlife Refuge

At a glance

Nisqually National Wildlife Refuge (PWSID WA5322209) is an active transient non-community water system in Thurston County, Washington. It reports serving 200 people through 4 service connections. Its primary water source is groundwater, and EPA lists it as owned by the federal government. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in October 1997.

Dataset updated October 2026 . Source: EPA SDWIS/ECHO public records.

Population served

200

Service connections

Primary source

Groundwater

System type

TNCWS

Transient non-community water system

System record

PWSIDWA5322209

System typeTransient non-community water system

Activity statusActive

Population served200

Service connections4

Primary water sourceGroundwater

Owner typeFederal government

Primacy agencyWA state drinking water program

City served—

StateWashington

ZIP—

CountyThurston County

How does Nisqually National Wildlife Refuge compare with other water systems in Thurston County?

By EPA's size categories, Nisqually National Wildlife Refuge is a very small system (500 people or fewer). Thurston County has 322 active public water systems. Its population served is well below the county average of 1,233 people per system, and accounts for less than 0.1% of the 397,060 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 Nisqually National Wildlife Refuge is about 39% 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 Nisqually National Wildlife Refuge?

EPA lists Nisqually National Wildlife Refuge 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. 2 of the 322 active systems in Thurston County (0.6%) are also owned by the federal government.

Does Nisqually National Wildlife Refuge have drinking water violations?

Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in October 1997. The violations listed here began between March 1992 and October 1997. By type: 12 monitoring and reporting. The contaminant or rule involved most often is Total coliform bacteria (TCR) (12 of them). EPA lists 12 as archived. 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
1997-10-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Archived
1997-07-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Archived
1997-06-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Archived
1992-12-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Archived
1992-10-01	Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24	Total coliform bacteria (TCR)code 3100	No	Archived
1992-09-01	Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24	Total coliform bacteria (TCR)code 3100	No	Archived
1992-08-01	Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24	Total coliform bacteria (TCR)code 3100	No	Archived
1992-07-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Archived
1992-06-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Archived
1992-05-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Archived
1992-04-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Archived
1992-03-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Archived

The 12 most recent 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.

Nisqually National Wildlife Refuge: frequently asked questions

Who runs Nisqually National Wildlife Refuge?

Nisqually National Wildlife Refuge (PWSID WA5322209) 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 Nisqually National Wildlife Refuge serve?

Nisqually National Wildlife Refuge reports serving 200 people through 4 service connections in Thurston County, Washington.

Where does Nisqually National Wildlife Refuge 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 Nisqually National Wildlife Refuge have any drinking water violations?

Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in October 1997. 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 Nisqually National Wildlife Refuge'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. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in October 1997. For current results, consult EPA ECHO, or the WA state drinking water program.

Where can I find Nisqually National Wildlife Refuge's water quality report?

The annual Consumer Confidence Report requirement applies to community water systems. Nisqually National Wildlife Refuge 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 Thurston County

Water system	County	Population served	Type	Source
Olympia City of	Thurston	126,966	Community	Groundwater
Lacey Water Department	Thurston	105,178	Community	Groundwater
Tumwater City of	Thurston	51,802	Community	Groundwater
Yelm City of	Thurston	17,355	Community	Groundwater
Tanglewilde Thompson Place 600	Thurston	7,900	Community	Groundwater
Pattison 500	Thurston	4,643	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, “Nisqually National Wildlife Refuge, PWSID WA5322209, Washington”, https://aquacensus.com/water-systems/washington/nisqually-national-wildlife-refuge-wa5322209 (data as of October 1, 2026).