Gasconade County, Missouri — public water systems

At a glance

17 active public water systems are filed under Gasconade County, Missouri in EPA's SDWIS records, together reporting 8,020 people served. The largest is Owensville Pws, which reports serving 2,800 people. 10 are community water systems serving people where they live; the other 7 are non-community systems, such as schools, workplaces, campgrounds and gas stations with their own supply.

Dataset updated October 2026 . Source: EPA SDWIS/ECHO, refreshed quarterly.

Active systems

Population served

Community systems

Groundwater share

100%

How does Gasconade County compare with other Missouri counties?

Gasconade County has the 47th-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 8,020 people served in total, the 86th-largest county figure in the state and 0.1% of the statewide total. The average system here reports serving 472 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 Gasconade County's drinking water come from?

By primary water source, Gasconade County's active systems draw on groundwater (17, 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, Owensville Pws, draws primarily on groundwater.

What kinds of water systems operate in Gasconade County?

Gasconade County's active systems break down as 10 community systems (59%), 1 non-transient non-community systems (5.9%) and 6 transient non-community systems (35%). 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 private (65%) and local government (35%).

Water systems in Gasconade County

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Active public water systems in Gasconade County, Missouri
#	Water system	County	Population served	Type	Source
1	Owensville Pws	Gasconade	2,800	Community	Groundwater
2	Hermann Pws	Gasconade	2,500	Community	Groundwater
3	Bland Pws	Gasconade	539	Community	Groundwater
4	Gasconade Pwsd #1	Gasconade	450	Community	Groundwater
5	Confluence Rivers Gascony Village	Gasconade	414	Community	Groundwater
6	Rosebud Pws	Gasconade	410	Community	Groundwater
7	Gasconade Pws	Gasconade	280	Community	Groundwater
8	Lost Valley Lake Resort	Gasconade	150	Non-transient non-community	Groundwater
9	Morrison Pws	Gasconade	140	Community	Groundwater
10	Emmanuel Evangelical Free Church	Gasconade	102	Transient non-community	Groundwater
11	Old Dutch Mill	Gasconade	50	Transient non-community	Groundwater
12	Black Forest Hoa Inc. No 2	Gasconade	50	Community	Groundwater
13	Crown Power and Equipment	Gasconade	30	Transient non-community	Groundwater
14	Bare Bones Bbq	Gasconade	30	Transient non-community	Groundwater
15	Shepherd of the Hills Lutheran Church	Gasconade	25	Transient non-community	Groundwater
16	Brown Shanty Lake Assn	Gasconade	25	Transient non-community	Groundwater
17	Lake Northwoods Utility Inc.	Gasconade	25	Community	Groundwater

Gasconade County water systems: frequently asked questions

How many public water systems are in Gasconade County, Missouri?

EPA's SDWIS records file 17 active public water systems under Gasconade County, Missouri: 10 community systems (59%), 1 non-transient non-community systems (5.9%) and 6 transient non-community systems (35%).

Who supplies drinking water in Gasconade County, MO?

The largest community water systems filed under Gasconade County are Owensville Pws (2,800 people served), Hermann Pws (2,500 people served) and Bland Pws (539 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 Gasconade County's drinking water come from groundwater or surface water?

Of the 17 active public water systems in Gasconade County, all draw mainly on groundwater and none on surface water, counting purchased supplies. The largest system, Owensville Pws, uses groundwater.

Where can I find a water quality report for Gasconade 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 Gasconade 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 Gasconade 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 Gasconade County, Missouri”, https://aquacensus.com/water-systems/missouri/gasconade (data as of October 1, 2026).