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Oconee County, South Carolina — public water systems

At a glance

55 active public water systems are filed under Oconee County, South Carolina in EPA's SDWIS records, together reporting 100,931 people served. The largest is Seneca City of (Sc3710002), which reports serving 39,772 people. 20 are community water systems serving people where they live; the other 35 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

55

Population served

100.9K

Community systems

20

Groundwater share

74.5%

How does Oconee County compare with other South Carolina counties?

Oconee County has the 8th-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 100,931 people served in total, the 15th-largest county figure in the state and 2.1% of the statewide total. The average system here reports serving 1,835 people, about half of 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 Oconee County's drinking water come from?

By primary water source, Oconee County's active systems draw on groundwater (41, 75%), purchased surface water (10, 18%) and surface water (4, 7.3%). Overall, 75% rely mainly on groundwater (including purchased groundwater) and 25% on surface water, compared with 70% and 30% across South Carolina. Groundwater means the system draws its water from wells or springs fed by underground aquifers. The county's largest system, Seneca City of (Sc3710002), draws primarily on surface water.

What kinds of water systems operate in Oconee County?

Oconee County's active systems break down as 20 community systems (36%), 1 non-transient non-community systems (1.8%) and 34 transient non-community systems (62%). 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 (76%), local government (11%), state government (7.3%) and federal government (5.5%).

The 50 largest water systems in Oconee County

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Active public water systems in Oconee County, South Carolina
#Water systemCountyPopulation servedTypeSource
1Seneca City of (Sc3710002)Oconee39,772CommunitySurface water
2Pioneer Rural Water Dist (Sc3720001)Oconee16,929CommunitySurface water
3Walhalla City of (Sc3710004)Oconee16,010CommunitySurface water
4Westminster City of (Sc3710003)Oconee9,588CommunitySurface water
5Salem Town of (Sc3710001)Oconee6,444CommunityPurchased surface water
6Keowee Key Utility System Inc. (3750023)Oconee4,108CommunityPurchased surface water
7Foxwood Hills (Sc3750025)Oconee1,703CommunityPurchased surface water
8View at the Pier the (Sc3770300)Oconee864CommunityPurchased surface water
9Chickasaw Point (Sc3750010)Oconee823CommunityPurchased surface water
10Port Bass I (Sc3750002)Oconee681CommunityGroundwater
11Harts Cove and Tory Pointe (Sc3750029)Oconee560CommunityPurchased surface water
12West Union Town of (3710005)Oconee468CommunityPurchased surface water
13Scprt-Oconee State Park (3770600)Oconee393Transient non-communityGroundwater
14Timber Lake I (Sc3750006)Oconee283CommunityGroundwater
15Camp Chatuga (3770928)Oconee200Transient non-communityGroundwater
16Scprt-Devils Fork (Sc3770608)Oconee196Transient non-communityGroundwater
17Port Bass Ii (Sc3750012)Oconee165CommunityGroundwater
18Diakonia Center (3770807)Oconee155Transient non-communityGroundwater
19Highway 11 Flea Market (Sc3770914)Oconee150Transient non-communityGroundwater
20Keowee Bay S/D (Sc3750026)Oconee115CommunityGroundwater
21Timber Lake Ii (Sc3750007)Oconee93CommunityGroundwater
22Scdnr-Walhalla Fish Hatchery (3770601)Oconee85Transient non-communityGroundwater
23Duke Construction Yard (Sc3730010)Oconee80Transient non-communityGroundwater
24Wild Water Ltd (Sc3770909)Oconee68Transient non-communityGroundwater
25Bay Ridge S/D (Sc3750027)Oconee62CommunityGroundwater
26Mountain Rest Cabins C/G (3770809)Oconee60Transient non-communityGroundwater
27Whetstone Academy (Sc3770106)Oconee55Non-transient non-communityGroundwater
28Chattooga River Resort (3770918)Oconee50Transient non-communityGroundwater
29Chattooga Sounds Campground (Sc3770812)Oconee50Transient non-communityGroundwater
30Usfs Whetstone Horse Camp (Sc3770920)Oconee45Transient non-communityGroundwater
31Cherokee Creek Boys School (Sc3770002)Oconee40CommunityGroundwater
32Isaqueena Point Util Sys (Sc3750008)Oconee38CommunityPurchased surface water
33Turtlehead at Keowee S/D (Sc3750022)Oconee32CommunityGroundwater
34Humble Pie Restaurant (Sc3772008)Oconee30Transient non-communityGroundwater
35Tunnel Town Express (Sc3770930)Oconee26Transient non-communityGroundwater
36Boondocks General Store (Sc3774005)Oconee26Transient non-communityGroundwater
37Brasstown Creek Gathering Pl (Sc3772009)Oconee26Transient non-communityGroundwater
38Primo - Publix 1671 (Sc3780006)Oconee26Transient non-communityPurchased surface water
39Jocassee Outdoor Center (Sc3770927)Oconee26Transient non-communityGroundwater
40Mountain Rest Water System (3772006)Oconee26Transient non-communityGroundwater
41Wildwater Ltd Follow Up Well Sc3774004Oconee26Transient non-communityGroundwater
42Nantahala Outdoor Center (Sc3770676)Oconee26Transient non-communityGroundwater
43Cg Roxane Bottled Water (Sc3773001)Oconee26Transient non-communityGroundwater
44Scprt-Oconee Station (Sc3770659)Oconee26Transient non-communityGroundwater
45Five Springs Water Company(Sc3730021)Oconee26Transient non-communityGroundwater
46Jocassee Club Wtr Sys (3770937)Oconee25Transient non-communityGroundwater
47Duke Energy-Bad Creek Entrance (3730005)Oconee25Transient non-communityGroundwater
48Jocassee Rv Camp (Sc3770803)Oconee25Transient non-communityGroundwater
49Usfs Cherry Hill Rec Area (Sc3770651)Oconee25Transient non-communityGroundwater
50Chattooga Belle Farm (Sc3770934)Oconee25Transient non-communityGroundwater

All other water systems in Oconee County (5)

The remaining active systems filed under Oconee County, largest first, with the population each reports serving.

Oconee County water systems: frequently asked questions

How many public water systems are in Oconee County, South Carolina?

EPA's SDWIS records file 55 active public water systems under Oconee County, South Carolina: 20 community systems (36%), 1 non-transient non-community systems (1.8%) and 34 transient non-community systems (62%).

Who supplies drinking water in Oconee County, SC?

The largest community water systems filed under Oconee County are Seneca City of (Sc3710002) (39,772 people served), Pioneer Rural Water Dist (Sc3720001) (16,929 people served) and Walhalla City of (Sc3710004) (16,010 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 Oconee County's drinking water come from groundwater or surface water?

Of the 55 active public water systems in Oconee County, 75% draw mainly on groundwater and 25% on surface water, counting purchased supplies. The largest system, Seneca City of (Sc3710002), uses surface water.

Where can I find a water quality report for Oconee 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. 20 community systems are filed under Oconee 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 Oconee 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

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 Oconee County, South Carolina”, https://aquacensus.com/water-systems/south-carolina/oconee (data as of October 1, 2026).