Public water system · SC4660007
ActiveTwin Lakes Estates (Sc4660007)
At a glance
Twin Lakes Estates (Sc4660007) (PWSID SC4660007) is an active community water system in York County, South Carolina. It reports serving 550 people through 254 service connections. Its primary water source is purchased surface water, 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 October 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
550
Service connections
254
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Twin Lakes Estates (Sc4660007) compare with other water systems in York County?
By EPA's size categories, Twin Lakes Estates (Sc4660007) is a small system (501 to 3,300 people). York County has 135 active public water systems. Its population served is about 65% below the county average of 1,573 people per system, and accounts for 0.3% of the 212,290 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 Twin Lakes Estates (Sc4660007) is well 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. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 368 South Carolina systems (26%) list purchased surface water as their primary source.
Who owns and regulates Twin Lakes Estates (Sc4660007)?
EPA lists Twin Lakes Estates (Sc4660007) 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. 120 of the 135 active systems in York County (89%) are also privately owned.
Does Twin Lakes Estates (Sc4660007) have drinking water violations?
EPA's records list 5 violations for this system; none is health-based, and the most recent began in October 2025. The violations listed here began between August 1992 and October 2025. By type: 4 monitoring and reporting and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Stage 2 Disinfectants and Disinfection Byproducts Rule (2 of them). EPA lists 4 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 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Unaddressed |
| 2018-10-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2010-07-02 | Monitoring and reportingFailure Submit IDSE/Subpart V Plan Rpt · code 35 | Stage 2 Disinfectants and Disinfection Byproducts Rulecode 0600 | No | Resolved |
| 2008-04-02 | Monitoring and reportingMonitoring, Routine (IDSE) · code 30 | Stage 2 Disinfectants and Disinfection Byproducts Rulecode 0600 | No | Resolved |
| 1992-08-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
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.
Twin Lakes Estates (Sc4660007): frequently asked questions
Who runs Twin Lakes Estates (Sc4660007)?
Twin Lakes Estates (Sc4660007) (PWSID SC4660007) is a community water system privately owned. It is regulated by the SC state drinking water program.
How many people does Twin Lakes Estates (Sc4660007) serve?
Twin Lakes Estates (Sc4660007) reports serving 550 people through 254 service connections in York County, South Carolina.
Where does Twin Lakes Estates (Sc4660007) get its water?
EPA SDWIS lists this system's primary water source as purchased surface water. Purchased surface water means the system buys surface water from another public water system rather than drawing its own.
Does Twin Lakes Estates (Sc4660007) have any drinking water violations?
EPA's records list 5 violations for this system; none 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 Twin Lakes Estates (Sc4660007)'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 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 Twin Lakes Estates (Sc4660007)'s water quality report?
As a community water system, Twin Lakes Estates (Sc4660007) 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 York County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Rock Hill City of (Sc4610002) | York | 89,850 | Community | Surface water |
| York County East Wd (Sc4620002) | York | 30,225 | Community | Purchased surface water |
| Fort Mill Town of (Sc4610003) | York | 25,000 | Community | Purchased surface water |
| York County West Wd (Sc4620003) | York | 18,273 | Community | Purchased surface water |
| York City of (Sc4610001) | York | 11,137 | Community | Purchased surface water |
| Tega Cay City of (Sc4610008) | York | 10,500 | 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, “Twin Lakes Estates (Sc4660007), PWSID SC4660007, South Carolina”, https://aquacensus.com/water-systems/south-carolina/twin-lakes-estates-sc4660007-sc4660007 (data as of October 1, 2026).