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Clay County, North Dakota — public water systems

At a glance

4 active public water systems are filed under Clay County, North Dakota in EPA's SDWIS records, together reporting 225 people served. The largest is Tom Brantner Memorial Camp Bsa, which reports serving 150 people.

Dataset updated . Source: EPA SDWIS/ECHO, refreshed quarterly.

Active systems

4

Population served

225

Community systems

—

Groundwater share

100%

How does Clay County compare with other North Dakota counties?

Clay County has the 36th-most active public water systems among the 61 counties listed for active North Dakota systems in EPA records; among the 49 with 3 or more systems, the median has 6. Its systems report 225 people served in total, the 53rd-largest county figure in the state and less than 0.1% of the statewide total. The average system here reports serving 56 people, well below the North Dakota average of 1,864. Population figures are what each system reports; people served by more than one system, such as a wholesaler and the town that buys from it, are counted by each.

Where does Clay County's drinking water come from?

By primary water source, Clay County's active systems draw on groundwater (4, 100%). Overall, all rely mainly on groundwater (including purchased groundwater) and none on surface water, compared with 74% and 26% across North Dakota. Groundwater means the system draws its water from wells or springs fed by underground aquifers. The county's largest system, Tom Brantner Memorial Camp Bsa, draws primarily on groundwater.

What kinds of water systems operate in Clay County?

Clay County's active systems break down as 4 transient non-community systems (100%). A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. EPA lists their owner types as private (100%).

Water systems in Clay County

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Active public water systems in Clay County, North Dakota
#Water systemCountyPopulation servedTypeSource
1Tom Brantner Memorial Camp BsaClay150Transient non-communityGroundwater
2Maple River Grain & Agronomy LLC-KragnesClay25Transient non-communityGroundwater
3Maple River Grain and Agronomy LLCClay25Transient non-communityGroundwater
4Buffalo River SpeedwayClay25Transient non-communityGroundwater

Clay County water systems: frequently asked questions

How many public water systems are in Clay County, North Dakota?

EPA's SDWIS records file 4 active public water systems under Clay County, North Dakota: 4 transient non-community systems (100%).

Does Clay County's drinking water come from groundwater or surface water?

Of the 4 active public water systems in Clay County, all draw mainly on groundwater and none on surface water, counting purchased supplies. The largest system, Tom Brantner Memorial Camp Bsa, uses groundwater.

Where can I find a water quality report for Clay County?

Each community water system must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1, covering the previous calendar year.

How can I check violations for a water system in Clay County?

Open the system's profile from the list on this page. Each profile shows the most recent Safe Drinking Water Act violations in EPA's records, with plain-English labels and whether each one is resolved. For current compliance status, EPA ECHO is the primary source.

More North Dakota water systems

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, “Public water systems in Clay County, North Dakota”, https://aquacensus.com/water-systems/north-dakota/clay (data as of October 1, 2026).