Public water system · WA5329335

Active

Great Northern School Dist #312

At a glance

Great Northern School Dist #312 (PWSID WA5329335) is an active non-transient non-community water system in Spokane County, Washington. It reports serving 47 people through 2 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in January 2020.

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

Population served

Service connections

Primary source

Groundwater

System type

NTNCWS

Non-transient non-community water system

System record

PWSIDWA5329335

System typeNon-transient non-community water system

Activity statusActive

Population served47

Service connections2

Primary water sourceGroundwater

Owner typeLocal government

Primacy agencyWA state drinking water program

City served—

StateWashington

ZIP—

CountySpokane County

How does Great Northern School Dist #312 compare with other water systems in Spokane County?

By EPA's size categories, Great Northern School Dist #312 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 Great Northern School Dist #312 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 Great Northern School Dist #312?

EPA lists Great Northern School Dist #312 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. 55 of the 163 active systems in Spokane County (34%) are also owned by a local government.

Does Great Northern School Dist #312 have drinking water violations?

Of the 12 most recent violations in EPA's records, 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: 12 monitoring and reporting. The contaminants or rules involved are Benzene, Chlorobenzene, Ethylbenzene and 1,1,2-Trichloroethane. 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
2020-01-01	Monitoring and reportingMonitoring, Regular · code 03	Benzenecode 2990	No	Resolved
2020-01-01	Monitoring and reportingMonitoring, Regular · code 03	Chlorobenzenecode 2989	No	Resolved
2020-01-01	Monitoring and reportingMonitoring, Regular · code 03	Ethylbenzenecode 2992	No	Resolved
2020-01-01	Monitoring and reportingMonitoring, Regular · code 03	1,1,2-Trichloroethanecode 2985	No	Resolved
2020-01-01	Monitoring and reportingMonitoring, Regular · code 03	Vinyl chloridecode 2976	No	Resolved
2020-01-01	Monitoring and reportingMonitoring, Regular · code 03	trans-1,2-Dichloroethylenecode 2979	No	Resolved
2020-01-01	Monitoring and reportingMonitoring, Regular · code 03	1,2-Dichloroethanecode 2980	No	Resolved
2020-01-01	Monitoring and reportingMonitoring, Regular · code 03	1,1,1-Trichloroethanecode 2981	No	Resolved
2020-01-01	Monitoring and reportingMonitoring, Regular · code 03	o-Dichlorobenzenecode 2968	No	Resolved
2020-01-01	Monitoring and reportingMonitoring, Regular · code 03	p-Dichlorobenzenecode 2969	No	Resolved
2020-01-01	Monitoring and reportingMonitoring, Regular · code 03	Carbon tetrachloridecode 2982	No	Resolved
2020-01-01	Monitoring and reportingMonitoring, Regular · code 03	1,2-Dichloropropanecode 2983	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.

Great Northern School Dist #312: frequently asked questions

Who runs Great Northern School Dist #312?

Great Northern School Dist #312 (PWSID WA5329335) is a non-transient non-community water system owned by a local government. It is regulated by the WA state drinking water program.

How many people does Great Northern School Dist #312 serve?

Great Northern School Dist #312 reports serving 47 people through 2 service connections in Spokane County, Washington.

Where does Great Northern School Dist #312 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 Great Northern School Dist #312 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 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 Great Northern School Dist #312'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 January 2020. For current results, consult EPA ECHO, or the WA state drinking water program.

Where can I find Great Northern School Dist #312's water quality report?

The annual Consumer Confidence Report requirement applies to community water systems. Great Northern School Dist #312 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, “Great Northern School Dist #312, PWSID WA5329335, Washington”, https://aquacensus.com/water-systems/washington/great-northern-school-dist-312-wa5329335 (data as of October 1, 2026).