Public water system · SC3420001
ActiveMarlboro Water Co (Sc3420001)
At a glance
Marlboro Water Co (Sc3420001) (PWSID SC3420001) is an active community water system in Marlboro County, South Carolina. It reports serving 5,360 people through 2,178 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 5 violations for this system; none is health-based, and the most recent began in December 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
5,360
Service connections
2,178
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Marlboro Water Co (Sc3420001) compare with other water systems in Marlboro County?
By EPA's size categories, Marlboro Water Co (Sc3420001) is a medium system (3,301 to 10,000 people). Marlboro County has 8 active public water systems, and Marlboro Water Co (Sc3420001) is the 2nd-largest of them by population served. Its population served is about twice the county average of 2,709 people per system, and accounts for 25% of the 21,672 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 Marlboro Water Co (Sc3420001) is about 20% 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 Marlboro Water Co (Sc3420001)?
EPA lists Marlboro Water Co (Sc3420001) as privately owned. 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. 5 of the 8 active systems in Marlboro County (63%) are also privately owned.
Does Marlboro Water Co (Sc3420001) have drinking water violations?
EPA's records list 5 violations for this system; none is health-based, and the most recent began in December 2025. The violations listed here began between July 1992 and December 2025. By type: 5 monitoring and reporting. The contaminant or rule involved most often is Total coliform bacteria (TCR) (3 of them). EPA lists 2 as archived, 2 as resolved and 1 as unaddressed. 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. 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 |
|---|---|---|---|---|
| 2025-12-30 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Unaddressed |
| 2001-03-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1997-04-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1994-07-01 | Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51 | Lead and Copper Rulecode 5000 | No | Resolved |
| 1992-07-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Archived |
All 5 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.
Marlboro Water Co (Sc3420001): frequently asked questions
Who runs Marlboro Water Co (Sc3420001)?
Marlboro Water Co (Sc3420001) (PWSID SC3420001) is a community water system privately owned. It is regulated by the SC state drinking water program.
How many people does Marlboro Water Co (Sc3420001) serve?
Marlboro Water Co (Sc3420001) reports serving 5,360 people through 2,178 service connections in Marlboro County, South Carolina.
Where does Marlboro Water Co (Sc3420001) 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 Marlboro Water Co (Sc3420001) have any drinking water violations?
EPA's records list 5 violations for this system; none is health-based, and the most recent began in December 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 Marlboro Water Co (Sc3420001)'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 5 violations for this system; none is health-based, and the most recent began in December 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 Marlboro Water Co (Sc3420001)'s water quality report?
As a community water system, Marlboro Water Co (Sc3420001) 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 Marlboro County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Bennettsville City of (Sc3410001) | Marlboro | 9,168 | Community | Surface water |
| Wallace Water Company (Sc3420002) | Marlboro | 3,552 | Community | Groundwater |
| Mccoll Town of (Sc3410003) | Marlboro | 2,445 | Community | Groundwater |
| Clio Town of (Sc3410002) | Marlboro | 788 | Community | Groundwater |
| Stanton'S Bbq (Sc3470200) | Marlboro | 313 | Transient non-community | Groundwater |
| Primo-Walmart 4457 (Sc3480001) | Marlboro | 26 | Transient non-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, “Marlboro Water Co (Sc3420001), PWSID SC3420001, South Carolina”, https://aquacensus.com/water-systems/south-carolina/marlboro-water-co-sc3420001-sc3420001 (data as of October 1, 2026).