Public water system · TN0000312
ActiveHornsby Water Dept
At a glance
Hornsby Water Dept (PWSID TN0000312) is an active community water system in Hardeman County, Tennessee. It reports serving 892 people through 388 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; 1 is health-based, and the most recent began in July 2009.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
892
Service connections
388
Primary source
GWP
Purchased groundwater
System type
CWS
Community water system
System record
How does Hornsby Water Dept compare with other water systems in Hardeman County?
By EPA's size categories, Hornsby Water Dept is a small system (501 to 3,300 people). Hardeman County has 15 active public water systems, and Hornsby Water Dept is the 6th-largest of them by population served. Its population served is about 15% below the county average of 1,047 people per system, and accounts for 5.7% of the 15,703 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 Hornsby Water Dept 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. Tennessee has 450 active community water systems, 33% of the state's 1,383 active systems. Purchased groundwater means the system buys groundwater from another public water system rather than drawing its own. 22 Tennessee systems (1.6%) list purchased groundwater as their primary source.
Who owns and regulates Hornsby Water Dept?
EPA lists Hornsby Water Dept 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. 7 of the 15 active systems in Hardeman County (47%) are also owned by a local government.
Does Hornsby Water Dept have drinking water violations?
EPA's records list 4 violations for this system; 1 is health-based, and the most recent began in July 2009. The violations listed here began between October 1990 and July 2009. By type: 2 monitoring and reporting, 1 public notice, recordkeeping or other and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Total coliform bacteria (TCR) (2 of them). EPA lists 2 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 |
|---|---|---|---|---|
| 2009-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2008-04-01 | Monitoring and reportingMonitoring, Routine (IDSE) · code 30 | Stage 2 Disinfectants and Disinfection Byproducts Rulecode 0600 | No | Resolved |
| 2000-11-01 | Monitoring and reportingMonitoring, Repeat Major (TCR) · code 25 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1990-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | 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.
Hornsby Water Dept: frequently asked questions
Who runs Hornsby Water Dept?
Hornsby Water Dept (PWSID TN0000312) is a community water system owned by a local government. It is regulated by the TN state drinking water program.
How many people does Hornsby Water Dept serve?
Hornsby Water Dept reports serving 892 people through 388 service connections in Hardeman County, Tennessee.
Where does Hornsby Water Dept 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 Hornsby Water Dept have any drinking water violations?
EPA's records list 4 violations for this system; 1 is health-based, and the most recent began in July 2009. 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 Hornsby Water Dept'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; 1 is health-based, and the most recent began in July 2009. For current results, consult the system's annual water quality report, EPA ECHO, or the TN state drinking water program.
Where can I find Hornsby Water Dept's water quality report?
As a community water system, Hornsby Water Dept 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 Hardeman County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Bolivar Water System | Hardeman | 6,251 | Community | Groundwater |
| Spring Creek Utility District | Hardeman | 2,091 | Community | Purchased groundwater |
| Whiteville Water Dept | Hardeman | 1,440 | Community | Groundwater |
| Grand Junction Water Dept | Hardeman | 1,019 | Community | Groundwater |
| Middleton Water Dept | Hardeman | 964 | Community | Groundwater |
| Toone Water System | Hardeman | 720 | 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, “Hornsby Water Dept, PWSID TN0000312, Tennessee”, https://aquacensus.com/water-systems/tennessee/hornsby-water-dept-tn0000312 (data as of October 1, 2026).