Maries County, Missouri — public water systems
At a glance
10 active public water systems are filed under Maries County, Missouri in EPA's SDWIS records, together reporting 3,743 people served. The largest is Belle Pws, which reports serving 1,300 people. 5 are community water systems serving people where they live; the other 5 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
10
Population served
3.7K
Community systems
5
Groundwater share
100%
How does Maries County compare with other Missouri counties?
Maries County has the 75th-most active public water systems among the 182 counties listed for active Missouri systems in EPA records; among the 132 with 3 or more systems, the median has 13. Its systems report 3,743 people served in total, the 116th-largest county figure in the state and less than 0.1% of the statewide total. The average system here reports serving 374 people, well below the Missouri average of 2,049. 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 Maries County's drinking water come from?
By primary water source, Maries County's active systems draw on groundwater (10, 100%). Overall, all rely mainly on groundwater (including purchased groundwater) and none on surface water, compared with 92% and 8.1% across Missouri. Groundwater means the system draws its water from wells or springs fed by underground aquifers. The county's largest system, Belle Pws, draws primarily on groundwater.
What kinds of water systems operate in Maries County?
Maries County's active systems break down as 5 community systems (50%), 2 non-transient non-community systems (20%) and 3 transient non-community systems (30%). 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 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. 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 local government (60%) and private (40%).
Water systems in Maries County
🔒 Create a free account to export CSV| # | Water system | County | Population served | Type | Source |
|---|---|---|---|---|---|
| 1 | Belle Pws | Maries + 1 more | 1,300 | Community | Groundwater |
| 2 | Vienna Pws | Maries | 591 | Community | Groundwater |
| 3 | Maries County Pwsd 1 North | Maries | 474 | Community | Groundwater |
| 4 | Osage County Pwsd 4 | Maries + 1 more | 357 | Community | Groundwater |
| 5 | Turkey Hill Ranch Bible Camp | Maries | 300 | Transient non-community | Groundwater |
| 6 | Maries County Pwsd 1 South | Maries | 300 | Community | Groundwater |
| 7 | Crossroads Convenience Store | Maries | 200 | Transient non-community | Groundwater |
| 8 | Kingsford Mfg Co | Maries | 106 | Non-transient non-community | Groundwater |
| 9 | 28 Quick Stop | Maries | 75 | Transient non-community | Groundwater |
| 10 | Rolla National Airport | Maries | 40 | Non-transient non-community | Groundwater |
Maries County water systems: frequently asked questions
How many public water systems are in Maries County, Missouri?
EPA's SDWIS records file 10 active public water systems under Maries County, Missouri: 5 community systems (50%), 2 non-transient non-community systems (20%) and 3 transient non-community systems (30%).
Who supplies drinking water in Maries County, MO?
The largest community water systems filed under Maries County are Belle Pws (1,300 people served), Vienna Pws (591 people served) and Maries County Pwsd 1 North (474 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 Maries County's drinking water come from groundwater or surface water?
Of the 10 active public water systems in Maries County, all draw mainly on groundwater and none on surface water, counting purchased supplies. The largest system, Belle Pws, uses groundwater.
Where can I find a water quality report for Maries 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. 5 community systems are filed under Maries 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 Maries 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 Missouri 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 Maries County, Missouri”, https://aquacensus.com/water-systems/missouri/maries (data as of October 1, 2026).