Saline County, Missouri — public water systems
At a glance
11 active public water systems are filed under Saline County, Missouri in EPA's SDWIS records, together reporting 21,299 people served. The largest is Marshall Pws, which reports serving 12,934 people. All 11 are community water systems serving people where they live.
Dataset updated . Source: EPA SDWIS/ECHO, refreshed quarterly.
Active systems
11
Population served
21.3K
Community systems
11
Groundwater share
90.9%
How does Saline County compare with other Missouri counties?
Saline County has the 71st-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 21,299 people served in total, the 44th-largest county figure in the state and 0.4% of the statewide total. The average system here reports serving 1,936 people, roughly in line with 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 Saline County's drinking water come from?
By primary water source, Saline County's active systems draw on purchased groundwater (8, 73%), groundwater (2, 18%) and purchased surface water (1, 9.1%). Overall, 91% rely mainly on groundwater (including purchased groundwater) and 9.1% on surface water, compared with 92% and 8.1% across Missouri. Purchased groundwater means the system buys groundwater from another public water system rather than drawing its own. The county's largest system, Marshall Pws, draws primarily on groundwater.
What kinds of water systems operate in Saline County?
Saline County's active systems break down as 11 community systems (100%). 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. EPA lists their owner types as local government (100%).
Water systems in Saline County
🔒 Create a free account to export CSV| # | Water system | County | Population served | Type | Source |
|---|---|---|---|---|---|
| 1 | Marshall Pws | Saline | 12,934 | Community | Groundwater |
| 2 | Saline County Pwsd 3 | Saline | 3,000 | Community | Purchased groundwater |
| 3 | Slater Pws | Saline | 1,835 | Community | Groundwater |
| 4 | Sweet Springs Pws | Saline | 1,309 | Community | Purchased surface water |
| 5 | Saline County Pwsd 2 | Saline | 883 | Community | Purchased groundwater |
| 6 | Saline County Pwsd 1 | Saline | 480 | Community | Purchased groundwater |
| 7 | Arrow Rock Pws | Saline | 235 | Community | Purchased groundwater |
| 8 | Malta Bend Pws | Saline | 200 | Community | Purchased groundwater |
| 9 | Nelson Pws | Saline | 158 | Community | Purchased groundwater |
| 10 | Miami Pws | Saline | 140 | Community | Purchased groundwater |
| 11 | Gilliam Pws | Saline | 125 | Community | Purchased groundwater |
Also serving Saline County
These systems serve several counties, including Saline County. EPA lists another county first for them, so they are not included in the counts above.
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Laf Jo Saline County Cons Pwsd 2 | Lafayette + 2 more | 7,180 | Community | Purchased surface water |
| Pettis/Johnson/Saline Pwsd 1 | Johnson + 2 more | 1,000 | Community | Purchased surface water |
Saline County water systems: frequently asked questions
How many public water systems are in Saline County, Missouri?
EPA's SDWIS records file 11 active public water systems under Saline County, Missouri: 11 community systems (100%). At least 2 more systems are listed under another county but also serve Saline County.
Who supplies drinking water in Saline County, MO?
The largest community water systems filed under Saline County are Marshall Pws (12,934 people served), Saline County Pwsd 3 (3,000 people served) and Slater Pws (1,835 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 Saline County's drinking water come from groundwater or surface water?
Of the 11 active public water systems in Saline County, 91% draw mainly on groundwater and 9.1% on surface water, counting purchased supplies. The largest system, Marshall Pws, uses groundwater.
Where can I find a water quality report for Saline 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. 11 community systems are filed under Saline 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 Saline 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
- All Missouri public water systems· 2,943 active
- Caddo Parish County· 12 systems
- Nodaway County· 12 systems
- Texas County· 12 systems
- Daviess County· 11 systems
- Moniteau County· 11 systems
- Wright County· 11 systems
- How to find out who supplies your drinking water
- How to find and read your annual water quality report
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 Saline County, Missouri”, https://aquacensus.com/water-systems/missouri/saline (data as of October 1, 2026).