Public water system · WA5300253
ActiveCedarwood South Union Estates
At a glance
Cedarwood South Union Estates (PWSID WA5300253) is an active community water system in Thurston County, Washington. It reports serving 119 people through 45 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list one violation for this system; it is not health-based, and the most recent began in July 2020.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
119
Service connections
45
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Cedarwood South Union Estates compare with other water systems in Thurston County?
By EPA's size categories, Cedarwood South Union Estates 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 community water system reports serving 6,703 people, so Cedarwood South Union Estates is well below 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 Cedarwood South Union Estates?
EPA lists Cedarwood South Union Estates as privately owned. 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. 237 of the 322 active systems in Thurston County (74%) are also privately owned.
Does Cedarwood South Union Estates have drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in July 2020. By type: 1 public notice, recordkeeping or other. The contaminant or rule involved is Consumer Confidence Rule. EPA lists 1 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 |
|---|---|---|---|---|
| 2020-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
The one violation in EPA's records.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.
Cedarwood South Union Estates: frequently asked questions
Who runs Cedarwood South Union Estates?
Cedarwood South Union Estates (PWSID WA5300253) is a community water system privately owned. It is regulated by the WA state drinking water program.
How many people does Cedarwood South Union Estates serve?
Cedarwood South Union Estates reports serving 119 people through 45 service connections in Thurston County, Washington.
Where does Cedarwood South Union Estates 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 Cedarwood South Union Estates have any drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in July 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 Cedarwood South Union Estates' 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 one violation for this system; it is not health-based, and the most recent began in July 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 Cedarwood South Union Estates' water quality report?
As a community water system, Cedarwood South Union Estates 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 |
| 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, “Cedarwood South Union Estates, PWSID WA5300253, Washington”, https://aquacensus.com/water-systems/washington/cedarwood-south-union-estates-wa5300253 (data as of October 1, 2026).