Public water system · WA5304397
ActiveTanglewilde Thompson Place 600
At a glance
Tanglewilde Thompson Place 600 (PWSID WA5304397) is an active community water system in Thurston County, Washington. It reports serving 7,900 people through 1,960 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 2 violations for this system; none is health-based, and the most recent began in January 2020.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
7,900
Service connections
1,960
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Tanglewilde Thompson Place 600 compare with other water systems in Thurston County?
By EPA's size categories, Tanglewilde Thompson Place 600 is a medium system (3,301 to 10,000 people). Thurston County has 322 active public water systems, and Tanglewilde Thompson Place 600 is the 5th-largest of them by population served. Its population served is about 6.4 times the county average of 1,233 people per system, and accounts for 2% 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 community water system reports serving 6,703 people, so Tanglewilde Thompson Place 600 is about 18% above that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. Washington has 2,392 active community water systems, 51% 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 Tanglewilde Thompson Place 600?
EPA lists Tanglewilde Thompson Place 600 as owned by a local 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. 73 of the 322 active systems in Thurston County (23%) are also owned by a local government.
Does Tanglewilde Thompson Place 600 have drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in January 2020. The violations listed here began between January 2020 and January 2020. By type: 2 monitoring and reporting. The contaminants or rules involved are Total trihalomethanes (TTHM) and Haloacetic acids (HAA5). EPA lists 2 as resolved. 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.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2020-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2020-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
All 2 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.
Tanglewilde Thompson Place 600: frequently asked questions
Who runs Tanglewilde Thompson Place 600?
Tanglewilde Thompson Place 600 (PWSID WA5304397) is a community water system owned by a local government. It is regulated by the WA state drinking water program.
How many people does Tanglewilde Thompson Place 600 serve?
Tanglewilde Thompson Place 600 reports serving 7,900 people through 1,960 service connections in Thurston County, Washington.
Where does Tanglewilde Thompson Place 600 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 Tanglewilde Thompson Place 600 have any drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in January 2020. 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 Tanglewilde Thompson Place 600'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 2 violations for this system; none is health-based, and the most recent began in January 2020. For current results, consult the system's annual water quality report, EPA ECHO, or the WA state drinking water program.
Where can I find Tanglewilde Thompson Place 600's water quality report?
As a community water system, Tanglewilde Thompson Place 600 must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
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 |
| Pattison 500 | Thurston | 4,643 | Community | Groundwater |
| Grand Mound | Thurston | 3,764 | 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, “Tanglewilde Thompson Place 600, PWSID WA5304397, Washington”, https://aquacensus.com/water-systems/washington/tanglewilde-thompson-place-600-wa5304397 (data as of October 1, 2026).