Public water system · TN0000106
ActiveCalhoun-Charleston U.D.
At a glance
Calhoun-Charleston U.D. (PWSID TN0000106) is an active community water system in McMinn County, Tennessee. It reports serving 2,959 people through 1,198 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. EPA's records list 5 violations for this system; none is health-based, and the most recent began in November 2011.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
2,959
Service connections
1,198
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Calhoun-Charleston U.D. compare with other water systems in McMinn County?
By EPA's size categories, Calhoun-Charleston U.D. is a small system (501 to 3,300 people). McMinn County has 11 active public water systems, and Calhoun-Charleston U.D. is the 6th-largest of them by population served. Its population served is about 40% below the county average of 4,958 people per system, and accounts for 5.4% of the 54,536 people reported by systems filed under the county. Across Tennessee, the 1,383 active systems average 5,780 people each. Nationally, the average active community water system reports serving 6,703 people, so Calhoun-Charleston U.D. is about 56% 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. Tennessee has 450 active community water systems, 33% of the state's 1,383 active systems. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 121 Tennessee systems (8.7%) list purchased surface water as their primary source.
Who owns and regulates Calhoun-Charleston U.D.?
EPA lists Calhoun-Charleston U.D. as owned by a local government. The TN 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 11 active systems in McMinn County (55%) are also owned by a local government.
Does Calhoun-Charleston U.D. have drinking water violations?
EPA's records list 5 violations for this system; none is health-based, and the most recent began in November 2011. The violations listed here began between October 1999 and November 2011. By type: 3 monitoring and reporting and 2 public notice, recordkeeping or other. The contaminant or rule involved most often is Total coliform bacteria (TCR) (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 |
|---|---|---|---|---|
| 2011-11-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2011-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2005-04-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2002-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Unaddressed |
| 1999-10-19 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | 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.
Calhoun-Charleston U.D.: frequently asked questions
Who runs Calhoun-Charleston U.D.?
Calhoun-Charleston U.D. (PWSID TN0000106) is a community water system owned by a local government. It is regulated by the TN state drinking water program.
How many people does Calhoun-Charleston U.D. serve?
Calhoun-Charleston U.D. reports serving 2,959 people through 1,198 service connections in McMinn County, Tennessee.
Where does Calhoun-Charleston U.D. 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 Calhoun-Charleston U.D. have any drinking water violations?
EPA's records list 5 violations for this system; none is health-based, and the most recent began in November 2011. 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 Calhoun-Charleston U.D.'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 November 2011. For current results, consult the system's annual water quality report, EPA ECHO, or the TN state drinking water program.
Where can I find Calhoun-Charleston U.D.'s water quality report?
As a community water system, Calhoun-Charleston U.D. 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 McMinn County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Athens Utilities Board | McMinn | 26,424 | Community | Surface water |
| Etowah Utilities | McMinn | 12,851 | Community | Surface water |
| Niota Water System | McMinn | 3,932 | Community | Purchased groundwater under influence |
| Englewood Water Dept | McMinn | 3,917 | Community | Surface water |
| Riceville Utility District | McMinn | 3,843 | Community | Purchased surface water |
| Resolute Forest Products | McMinn | 200 | Non-transient non-community | 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, “Calhoun-Charleston U.D., PWSID TN0000106, Tennessee”, https://aquacensus.com/water-systems/tennessee/calhoun-charleston-u-d-tn0000106 (data as of October 1, 2026).