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Pondera County, Montana — public water systems

At a glance

12 active public water systems are filed under Pondera County, Montana in EPA's SDWIS records, together reporting 4,664 people served. The largest is Conrad Water Dept, which reports serving 2,500 people. 10 are community water systems serving people where they live; the other 2 are non-community systems, such as schools, workplaces, campgrounds and gas stations with their own supply.

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

Active systems

12

Population served

4.7K

Community systems

10

Groundwater share

58.3%

How does Pondera County compare with other Montana counties?

Pondera County has the 35th-most active public water systems among the 76 counties listed for active Montana systems in EPA records; among the 55 with 3 or more systems, the median has 16. Its systems report 4,664 people served in total, the 35th-largest county figure in the state and 0.4% of the statewide total. The average system here reports serving 389 people, about 20% below the Montana average of 489. 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 Pondera County's drinking water come from?

By primary water source, Pondera County's active systems draw on groundwater (7, 58%), purchased surface water (3, 25%) and surface water (2, 17%). Overall, 58% rely mainly on groundwater (including purchased groundwater) and 42% on surface water, compared with 89% and 11% across Montana. Groundwater means the system draws its water from wells or springs fed by underground aquifers. The county's largest system, Conrad Water Dept, draws primarily on surface water.

What kinds of water systems operate in Pondera County?

Pondera County's active systems break down as 10 community systems (83%) and 2 transient non-community systems (17%). 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. 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 (58%) and local government (42%).

Water systems in Pondera County

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Active public water systems in Pondera County, Montana
#Water systemCountyPopulation servedTypeSource
1Conrad Water DeptPondera2,500CommunitySurface water
2Tiber County Water DistrictPondera750CommunitySurface water
3Valier Town ofPondera452CommunityGroundwater
4Brady County Water Sewer DistrictPondera144CommunityPurchased surface water
5Ncmrwa Pondera Co Service AreaPondera144CommunityPurchased surface water
6New Miami ColonyPondera130CommunityGroundwater
7Birch Creek ColonyPondera120CommunityGroundwater
8Kingsbury ColonyPondera120CommunityGroundwater
9Pondera Colony Water SystemsPondera112CommunityGroundwater
10Midway Colony Inc.Pondera92CommunityGroundwater
11Buffalo Joe'SPondera50Transient non-communityGroundwater
12Stokes Market ConradPondera50Transient non-communityPurchased surface water

Pondera County water systems: frequently asked questions

How many public water systems are in Pondera County, Montana?

EPA's SDWIS records file 12 active public water systems under Pondera County, Montana: 10 community systems (83%) and 2 transient non-community systems (17%).

Who supplies drinking water in Pondera County, MT?

The largest community water systems filed under Pondera County are Conrad Water Dept (2,500 people served), Tiber County Water District (750 people served) and Town of Valier (452 people served). Which system serves a particular address depends on its service area, which EPA's SDWIS records do not include; a water bill or the local utility can confirm it.

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

Of the 12 active public water systems in Pondera County, 58% draw mainly on groundwater and 42% on surface water, counting purchased supplies. The largest system, Conrad Water Dept, uses surface water.

Where can I find a water quality report for Pondera 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. 10 community systems are filed under Pondera County, so the report to look for is the one from the system that supplies your address.

How can I check violations for a water system in Pondera 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 Montana 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 Pondera County, Montana”, https://aquacensus.com/water-systems/montana/pondera (data as of October 1, 2026).