Public water system · SC2110011
ActiveJohnsonville City of (Sc2110011)
At a glance
Johnsonville City of (Sc2110011) (PWSID SC2110011) is an active community water system in Florence County, South Carolina. It reports serving 5,083 people through 2,118 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 7 violations for this system; 2 are health-based, and the most recent began in March 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
5,083
Service connections
2,118
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Johnsonville City of (Sc2110011) compare with other water systems in Florence County?
By EPA's size categories, Johnsonville City of (Sc2110011) is a medium system (3,301 to 10,000 people). Florence County has 24 active public water systems, and Johnsonville City of (Sc2110011) is the 3rd-largest of them by population served. Its population served is about 20% above the county average of 4,240 people per system, and accounts for 5% of the 101,758 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 Johnsonville City of (Sc2110011) is about 24% below 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. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 933 South Carolina systems (67%) list groundwater as their primary source.
Who owns and regulates Johnsonville City of (Sc2110011)?
EPA lists Johnsonville City of (Sc2110011) 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. 7 of the 24 active systems in Florence County (29%) are also owned by a local government.
Does Johnsonville City of (Sc2110011) have drinking water violations?
EPA's records list 7 violations for this system; 2 are health-based, and the most recent began in March 2024. The violations listed here began between February 1992 and March 2024. By type: 4 monitoring and reporting, 2 contaminant level above the legal limit and 1 monitoring. The contaminant or rule involved most often is Total coliform bacteria (TCR) (5 of them). EPA lists 5 as resolved and 2 as archived. 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. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2024-03-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2024-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2004-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1996-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1996-04-01 | Monitoring and reportingMonitoring, Repeat Major (TCR) · code 25 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1992-03-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1992-02-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
All 7 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.
Johnsonville City of (Sc2110011): frequently asked questions
Who runs Johnsonville City of (Sc2110011)?
Johnsonville City of (Sc2110011) (PWSID SC2110011) is a community water system owned by a local government. It is regulated by the SC state drinking water program.
How many people does Johnsonville City of (Sc2110011) serve?
Johnsonville City of (Sc2110011) reports serving 5,083 people through 2,118 service connections in Florence County, South Carolina.
Where does Johnsonville City of (Sc2110011) get its water?
EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.
Does Johnsonville City of (Sc2110011) have any drinking water violations?
EPA's records list 7 violations for this system; 2 are health-based, and the most recent began in March 2024. 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 Johnsonville City of (Sc2110011)'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. EPA's records list 7 violations for this system; 2 are health-based, and the most recent began in March 2024. For current results, consult the system's annual water quality report, EPA ECHO, or the SC state drinking water program.
Where can I find Johnsonville City of (Sc2110011)'s water quality report?
As a community water system, Johnsonville City of (Sc2110011) 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 Florence County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Florence City of (Sc2110001) | Florence | 79,745 | Community | Surface water |
| Lake City City of (Sc2110007) | Florence | 9,191 | Community | Groundwater |
| Coward Town of (Sc2110012) | Florence | 2,283 | Community | Groundwater |
| Pamplico Town of (Sc2110010) | Florence | 1,734 | Community | Groundwater |
| Scranton Town of (Sc2110009) | Florence | 1,133 | Community | Groundwater |
| Florence Flea Market (2170235) | Florence | 999 | Transient non-community | Groundwater |
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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, “Johnsonville City of (Sc2110011), PWSID SC2110011, South Carolina”, https://aquacensus.com/water-systems/south-carolina/johnsonville-city-of-sc2110011-sc2110011 (data as of October 1, 2026).