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Public water system · ND5101074

Active

Upper Souris Water District-System I

At a glance

Upper Souris Water District-System I (PWSID ND5101074) is an active community water system in Ward County, North Dakota. It reports serving 1,296 people through 480 service connections. Its primary water source is purchased groundwater, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, 11 are health-based, and the most recent began in October 2023.

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

Population served

1,296

Service connections

480

Primary source

GWP

Purchased groundwater

System type

CWS

Community water system

System record

PWSIDND5101074
System typeCommunity water system
Activity statusActive
Population served1,296
Service connections480
Primary water sourcePurchased groundwater
Owner typePrivate
Primacy agencyND state drinking water program
City served—
StateNorth Dakota
ZIP—
CountyWard County

How does Upper Souris Water District-System I compare with other water systems in Ward County?

By EPA's size categories, Upper Souris Water District-System I is a small system (501 to 3,300 people). Ward County has 14 active public water systems, and Upper Souris Water District-System I is the 5th-largest of them by population served. Its population served is well below the county average of 4,689 people per system, and accounts for 2% of the 65,645 people reported by systems filed under the county. Across North Dakota, the 403 active systems average 1,864 people each. Nationally, the average active community water system reports serving 6,703 people, so Upper Souris Water District-System I 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. North Dakota has 317 active community water systems, 79% of the state's 403 active systems. Purchased groundwater means the system buys groundwater from another public water system rather than drawing its own. 114 North Dakota systems (28%) list purchased groundwater as their primary source.

Who owns and regulates Upper Souris Water District-System I?

EPA lists Upper Souris Water District-System I as privately owned. The ND state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 4 of the 14 active systems in Ward County (29%) are also privately owned.

Does Upper Souris Water District-System I have drinking water violations?

Of the 12 most recent violations in EPA's records, 11 are health-based, and the most recent began in October 2023. The violations listed here began between August 2000 and October 2023. By type: 11 contaminant level above the legal limit and 1 monitoring and reporting. The contaminant or rule involved most often is Total trihalomethanes (TTHM) (7 of them). EPA lists 11 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.

BeganViolationContaminant or ruleHealth-basedStatus
2023-10-18Monitoring and reportingLead Consumer Notice · code 66Lead and Copper Rulecode 5000NoResolved
2006-01-01Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02Total trihalomethanes (TTHM)code 2950YesResolved
2005-10-01Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02Total trihalomethanes (TTHM)code 2950YesResolved
2005-07-01Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02Total trihalomethanes (TTHM)code 2950YesResolved
2005-07-01Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02Haloacetic acids (HAA5)code 2456YesResolved
2005-04-01Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02Haloacetic acids (HAA5)code 2456YesResolved
2005-04-01Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02Total trihalomethanes (TTHM)code 2950YesResolved
2005-01-01Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02Haloacetic acids (HAA5)code 2456YesResolved
2005-01-01Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02Total trihalomethanes (TTHM)code 2950YesResolved
2004-10-01Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02Total trihalomethanes (TTHM)code 2950YesResolved
2004-07-01Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02Total trihalomethanes (TTHM)code 2950YesResolved
2000-08-01Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22Total coliform bacteria (TCR)code 3100YesArchived

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.

Upper Souris Water District-System I: frequently asked questions

Who runs Upper Souris Water District-System I?

Upper Souris Water District-System I (PWSID ND5101074) is a community water system privately owned. It is regulated by the ND state drinking water program.

How many people does Upper Souris Water District-System I serve?

Upper Souris Water District-System I reports serving 1,296 people through 480 service connections in Ward County, North Dakota.

Where does Upper Souris Water District-System I get its water?

EPA SDWIS lists this system's primary water source as purchased groundwater. Purchased groundwater means the system buys groundwater from another public water system rather than drawing its own.

Does Upper Souris Water District-System I have any drinking water violations?

Of the 12 most recent violations in EPA's records, 11 are health-based, and the most recent began in October 2023. 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 Upper Souris Water District-System I'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, 11 are health-based, and the most recent began in October 2023. For current results, consult the system's annual water quality report, EPA ECHO, or the ND state drinking water program.

Where can I find Upper Souris Water District-System I's water quality report?

As a community water system, Upper Souris Water District-System I 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 Ward County

Water systemCountyPopulation servedTypeSource
Minot City ofWard48,743CommunityGroundwater
North Prairie Rwd-System 1&2Ward7,748CommunityPurchased groundwater
North Prairie Rwd-System IiiWard2,742CommunityGroundwater
Surrey City ofWard1,365CommunityPurchased groundwater
Burlington City ofWard1,060CommunityPurchased groundwater
Kenmare City ofWard961CommunityPurchased 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, “Upper Souris Water District-System I, PWSID ND5101074, North Dakota”, https://aquacensus.com/water-systems/north-dakota/upper-souris-water-district-system-i-nd5101074 (data as of October 1, 2026).