Union County, South Carolina — public water systems
At a glance
8 active public water systems are filed under Union County, South Carolina in EPA's SDWIS records, together reporting 31,744 people served. The largest is Union City of (Sc4410001), which reports serving 13,076 people. All 8 are community water systems serving people where they live.
Dataset updated . Source: EPA SDWIS/ECHO, refreshed quarterly.
Active systems
8
Population served
31.7K
Community systems
8
Groundwater share
0%
How does Union County compare with other South Carolina counties?
Union County has the 41st-most active public water systems among the 58 counties listed for active South Carolina systems in EPA records; among the 46 with 3 or more systems, the median has 18. Its systems report 31,744 people served in total, the 27th-largest county figure in the state and 0.6% of the statewide total. The average system here reports serving 3,968 people, about 13% above the South Carolina average of 3,511. 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 Union County's drinking water come from?
By primary water source, Union County's active systems draw on purchased surface water (7, 88%) and surface water (1, 13%). Overall, none rely mainly on groundwater (including purchased groundwater) and all on surface water, compared with 70% and 30% across South Carolina. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. The county's largest system, Union City of (Sc4410001), draws primarily on surface water.
What kinds of water systems operate in Union County?
Union County's active systems break down as 8 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 Union County
🔒 Create a free account to export CSV| # | Water system | County | Population served | Type | Source |
|---|---|---|---|---|---|
| 1 | Union City of (Sc4410001) | Union | 13,076 | Community | Surface water |
| 2 | Meansville Riley W/D (Sc4420001) | Union | 7,368 | Community | Purchased surface water |
| 3 | Santuck Hebron Water Co (Sc4420007) | Union | 3,109 | Community | Purchased surface water |
| 4 | Browns Creek W/D (Sc4420002) | Union | 2,790 | Community | Purchased surface water |
| 5 | Rocky Creek W/D (Sc4420003) | Union | 2,464 | Community | Purchased surface water |
| 6 | Jonesville Town of (Sc4410002) | Union | 1,886 | Community | Purchased surface water |
| 7 | Carlisle Town of (4410003) | Union | 555 | Community | Purchased surface water |
| 8 | Lockhart Town of (Sc4420010) | Union | 496 | Community | Purchased surface water |
Union County water systems: frequently asked questions
How many public water systems are in Union County, South Carolina?
EPA's SDWIS records file 8 active public water systems under Union County, South Carolina: 8 community systems (100%).
Who supplies drinking water in Union County, SC?
The largest community water systems filed under Union County are Union City of (Sc4410001) (13,076 people served), Meansville Riley W/D (Sc4420001) (7,368 people served) and Santuck Hebron Water Co (Sc4420007) (3,109 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 Union County's drinking water come from groundwater or surface water?
Of the 8 active public water systems in Union County, none draw mainly on groundwater and all on surface water, counting purchased supplies. The largest system, Union City of (Sc4410001), uses surface water.
Where can I find a water quality report for Union 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. 8 community systems are filed under Union 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 Union 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 South Carolina water systems
- All South Carolina public water systems· 1,392 active
- Allendale County· 8 systems
- Bamberg County· 8 systems
- Cherokee County· 8 systems
- Marlboro County· 8 systems
- McCormick County· 7 systems
- Darlington County· 6 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 Union County, South Carolina”, https://aquacensus.com/water-systems/south-carolina/union (data as of October 1, 2026).