Public water system · KY0180185
ActiveSouth 641 Water District
At a glance
South 641 Water District (PWSID KY0180185) is an active community water system in Calloway County, Kentucky. It reports serving 1,160 people through 446 service connections. Its primary water source is purchased groundwater, and EPA lists it as owned by a local government. EPA's records list 4 violations for this system; none is health-based, and the most recent began in October 2013.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,160
Service connections
446
Primary source
GWP
Purchased groundwater
System type
CWS
Community water system
System record
How does South 641 Water District compare with other water systems in Calloway County?
By EPA's size categories, South 641 Water District is a small system (501 to 3,300 people). Calloway County has 15 active public water systems, and South 641 Water District is the 3rd-largest of them by population served. Its population served is about 44% below the county average of 2,087 people per system, and accounts for 3.7% of the 31,300 people reported by systems filed under the county. Across Kentucky, the 437 active systems average 11,699 people each. Nationally, the average active community water system reports serving 6,703 people, so South 641 Water District 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. Kentucky has 371 active community water systems, 85% of the state's 437 active systems. Purchased groundwater means the system buys groundwater from another public water system rather than drawing its own. 21 Kentucky systems (4.8%) list purchased groundwater as their primary source.
Who owns and regulates South 641 Water District?
EPA lists South 641 Water District as owned by a local government. The KY state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 4 of the 15 active systems in Calloway County (27%) are also owned by a local government.
Does South 641 Water District have drinking water violations?
EPA's records list 4 violations for this system; none is health-based, and the most recent began in October 2013. The violations listed here began between August 1992 and October 2013. By type: 3 monitoring and reporting and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Total coliform bacteria (TCR) (2 of them). EPA lists 3 as resolved and 1 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 |
|---|---|---|---|---|
| 2013-10-18 | Public notice, recordkeeping or otherPublic Notification Violation without NPDWR Violation · code 76 | Public Noticecode 7500 | No | Resolved |
| 2013-09-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1993-07-01 | Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51 | Lead and Copper Rulecode 5000 | No | Resolved |
| 1992-08-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Archived |
All 4 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.
South 641 Water District: frequently asked questions
Who runs South 641 Water District?
South 641 Water District (PWSID KY0180185) is a community water system owned by a local government. It is regulated by the KY state drinking water program.
How many people does South 641 Water District serve?
South 641 Water District reports serving 1,160 people through 446 service connections in Calloway County, Kentucky.
Where does South 641 Water District get its water?
EPA SDWIS lists this system's primary water source as purchased groundwater. Purchased groundwater means the system buys groundwater from another public water system rather than drawing its own.
Does South 641 Water District have any drinking water violations?
EPA's records list 4 violations for this system; none is health-based, and the most recent began in October 2013. 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 South 641 Water District'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 4 violations for this system; none is health-based, and the most recent began in October 2013. For current results, consult the system's annual water quality report, EPA ECHO, or the KY state drinking water program.
Where can I find South 641 Water District's water quality report?
As a community water system, South 641 Water District 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 Calloway County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Murray Water System | Calloway | 26,302 | Community | Groundwater |
| Dexter Almo Heights Water District | Calloway | 2,275 | Community | Purchased groundwater |
| Dollar General Shiloh | Calloway | 350 | Transient non-community | Groundwater |
| Dollar General New Concord | Calloway | 350 | Transient non-community | Groundwater |
| Cypress Springs Resort | Calloway | 200 | Transient non-community | Groundwater |
| Missing Hill Resort | Calloway | 196 | 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, “South 641 Water District, PWSID KY0180185, Kentucky”, https://aquacensus.com/water-systems/kentucky/south-641-water-district-ky0180185 (data as of October 1, 2026).