Public water system · WA5306164

Active

Central Pre Mix - Sullivan Rd

At a glance

Central Pre Mix - Sullivan Rd (PWSID WA5306164) is an active non-transient non-community water system in Spokane County, Washington. It reports serving 130 people through 4 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in August 2025.

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

Population served

130

Service connections

Primary source

Groundwater

System type

NTNCWS

Non-transient non-community water system

System record

PWSIDWA5306164

System typeNon-transient non-community water system

Activity statusActive

Population served130

Service connections4

Primary water sourceGroundwater

Owner typePrivate

Primacy agencyWA state drinking water program

City served—

StateWashington

ZIP—

CountySpokane County

How does Central Pre Mix - Sullivan Rd compare with other water systems in Spokane County?

By EPA's size categories, Central Pre Mix - Sullivan Rd is a very small system (500 people or fewer). Spokane County has 163 active public water systems. Its population served is well below the county average of 3,871 people per system, and accounts for less than 0.1% of the 631,008 people reported by systems filed under the county. Across Washington, the 4,705 active systems average 2,172 people each. Nationally, the average active non-transient non-community water system reports serving 430 people, so Central Pre Mix - Sullivan Rd is well below that figure.

What does “non-transient non-community water system” mean?

A non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. Washington has 400 active non-transient non-community water systems, 8.5% 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 Central Pre Mix - Sullivan Rd?

EPA lists Central Pre Mix - Sullivan Rd 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. 93 of the 163 active systems in Spokane County (57%) are also privately owned.

Does Central Pre Mix - Sullivan Rd have drinking water violations?

Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in August 2025. The violations listed here began between January 2008 and August 2025. By type: 6 monitoring and 6 monitoring and reporting. The contaminant or rule involved most often is Revised Total Coliform Rule (6 of them). EPA lists 12 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
2025-08-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
2025-07-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
2025-01-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
2024-01-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
2022-01-01	Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52	Lead and Copper Rulecode 5000	No	Resolved
2021-01-01	Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52	Lead and Copper Rulecode 5000	No	Resolved
2020-02-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
2018-10-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
2015-04-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved
2008-01-01	Monitoring and reportingMonitoring, Regular · code 03	trans-1,2-Dichloroethylenecode 2979	No	Resolved
2008-01-01	Monitoring and reportingMonitoring, Regular · code 03	Tetrachloroethylenecode 2987	No	Resolved
2008-01-01	Monitoring and reportingMonitoring, Regular · code 03	cis-1,2-Dichloroethylenecode 2380	No	Resolved

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.

Central Pre Mix - Sullivan Rd: frequently asked questions

Who runs Central Pre Mix - Sullivan Rd?

Central Pre Mix - Sullivan Rd (PWSID WA5306164) is a non-transient non-community water system privately owned. It is regulated by the WA state drinking water program.

How many people does Central Pre Mix - Sullivan Rd serve?

Central Pre Mix - Sullivan Rd reports serving 130 people through 4 service connections in Spokane County, Washington.

Where does Central Pre Mix - Sullivan Rd 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 Central Pre Mix - Sullivan Rd 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 August 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 Central Pre Mix - Sullivan Rd'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 August 2025. For current results, consult EPA ECHO, or the WA state drinking water program.

Where can I find Central Pre Mix - Sullivan Rd's water quality report?

The annual Consumer Confidence Report requirement applies to community water systems. Central Pre Mix - Sullivan Rd is a non-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 Spokane County

Water system	County	Population served	Type	Source
Spokane City of	Spokane	346,138	Community	Groundwater
Whitworth Water District 2	Spokane	26,883	Community	Groundwater
Vera Water & Power	Spokane	24,692	Community	Groundwater
Consolidated Irrig Dist 19 System 2	Spokane	21,220	Community	Groundwater
Spo Co Water Dist 3 Sys 1	Spokane	19,035	Community	Groundwater
Modern Electric Water Co	Spokane	18,487	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, “Central Pre Mix - Sullivan Rd, PWSID WA5306164, Washington”, https://aquacensus.com/water-systems/washington/central-pre-mix-sullivan-rd-wa5306164 (data as of October 1, 2026).