Public water system · WA5357851
ActiveSmith Prairie 251
At a glance
Smith Prairie 251 (PWSID WA5357851) is an active community water system in Thurston County, Washington. It reports serving 42 people through 14 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 October 1997.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
42
Service connections
14
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Smith Prairie 251 compare with other water systems in Thurston County?
By EPA's size categories, Smith Prairie 251 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 Smith Prairie 251 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 Smith Prairie 251?
EPA lists Smith Prairie 251 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 Smith Prairie 251 have drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in October 1997. The violations listed here began between June 1996 and October 1997. By type: 2 monitoring and reporting. The contaminants or rules involved are Lead and Copper Rule and Total coliform bacteria (TCR). EPA lists 1 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 |
|---|---|---|---|---|
| 1997-10-01 | Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51 | Lead and Copper Rulecode 5000 | No | Resolved |
| 1996-06-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
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.
Smith Prairie 251: frequently asked questions
Who runs Smith Prairie 251?
Smith Prairie 251 (PWSID WA5357851) is a community water system owned by a local government. It is regulated by the WA state drinking water program.
How many people does Smith Prairie 251 serve?
Smith Prairie 251 reports serving 42 people through 14 service connections in Thurston County, Washington.
Where does Smith Prairie 251 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 Smith Prairie 251 have any drinking water violations?
EPA's records list 2 violations for this system; 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 Smith Prairie 251'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 October 1997. For current results, consult the system's annual water quality report, EPA ECHO, or the WA state drinking water program.
Where can I find Smith Prairie 251's water quality report?
As a community water system, Smith Prairie 251 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, “Smith Prairie 251, PWSID WA5357851, Washington”, https://aquacensus.com/water-systems/washington/smith-prairie-251-wa5357851 (data as of October 1, 2026).