Public water system · SC3710004
ActiveWalhalla City of (Sc3710004)
At a glance
Walhalla City of (Sc3710004) (PWSID SC3710004) is an active community water system in Oconee County, South Carolina. It reports serving 16,010 people through 6,943 service connections. Its primary water source is surface water, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in October 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
16,010
Service connections
6,943
Primary source
SW
Surface water
System type
CWS
Community water system
System record
How does Walhalla City of (Sc3710004) compare with other water systems in Oconee County?
By EPA's size categories, Walhalla City of (Sc3710004) is a large system (10,001 to 100,000 people). Oconee County has 55 active public water systems, and Walhalla City of (Sc3710004) is the 3rd-largest of them by population served. Its population served is about 8.7 times the county average of 1,835 people per system, and accounts for 16% of the 100,931 people reported by systems filed under the county. Across South Carolina, the 1,392 active systems average 3,511 people each. Nationally, the average active community water system reports serving 6,703 people, so Walhalla City of (Sc3710004) is about 139% above that figure.
What does “community water system” mean?
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. South Carolina has 567 active community water systems, 41% of the state's 1,392 active systems. Surface water means the system draws its water from rivers, lakes, streams or reservoirs. 53 South Carolina systems (3.8%) list surface water as their primary source.
Who owns and regulates Walhalla City of (Sc3710004)?
EPA lists Walhalla City of (Sc3710004) as owned by a local government. The SC state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 6 of the 55 active systems in Oconee County (11%) are also owned by a local government.
Does Walhalla City of (Sc3710004) have drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in October 2025. The violations listed here began between January 1993 and October 2025. By type: 10 monitoring and reporting, 1 reporting and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Lead and Copper Rule (3 of them). EPA lists 11 as resolved and 1 as unaddressed. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2025-10-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Unaddressed |
| 2025-07-02 | ReportingNotification, Known or Potential LSL · code 4H | Lead and Copper Rule Revisionscode 5200 | No | Resolved |
| 2017-01-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2013-10-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2002-08-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1993-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 1993-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 1993-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Cadmiumcode 1015 | No | Resolved |
| 1993-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 1993-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Chromiumcode 1020 | No | Resolved |
| 1993-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Seleniumcode 1045 | No | Resolved |
| 1993-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Mercurycode 1035 | No | Resolved |
The 12 most recent violations in EPA's records, newest first. Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.
Walhalla City of (Sc3710004): frequently asked questions
Who runs Walhalla City of (Sc3710004)?
Walhalla City of (Sc3710004) (PWSID SC3710004) is a community water system owned by a local government. It is regulated by the SC state drinking water program.
How many people does Walhalla City of (Sc3710004) serve?
Walhalla City of (Sc3710004) reports serving 16,010 people through 6,943 service connections in Oconee County, South Carolina.
Where does Walhalla City of (Sc3710004) get its water?
EPA SDWIS lists this system's primary water source as surface water. Surface water means the system draws its water from rivers, lakes, streams or reservoirs.
Does Walhalla City of (Sc3710004) have any drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in October 2025. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.
Is Walhalla City of (Sc3710004)'s water safe to drink?
AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in October 2025. For current results, consult the system's annual water quality report, EPA ECHO, or the SC state drinking water program.
Where can I find Walhalla City of (Sc3710004)'s water quality report?
As a community water system, Walhalla City of (Sc3710004) must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
Other water systems in Oconee County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Seneca City of (Sc3710002) | Oconee | 39,772 | Community | Surface water |
| Pioneer Rural Water Dist (Sc3720001) | Oconee | 16,929 | Community | Surface water |
| Westminster City of (Sc3710003) | Oconee | 9,588 | Community | Surface water |
| Salem Town of (Sc3710001) | Oconee | 6,444 | Community | Purchased surface water |
| Keowee Key Utility System Inc. (3750023) | Oconee | 4,108 | Community | Purchased surface water |
| Foxwood Hills (Sc3750025) | Oconee | 1,703 | Community | Purchased surface water |
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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, “Walhalla City of (Sc3710004), PWSID SC3710004, South Carolina”, https://aquacensus.com/water-systems/south-carolina/walhalla-city-of-sc3710004-sc3710004 (data as of October 1, 2026).