Public water system · TN0000518
ActiveNorthwest Dyersburg U.D.
At a glance
Northwest Dyersburg U.D. (PWSID TN0000518) is an active community water system in Dyer County, Tennessee. It reports serving 3,996 people through 1,665 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 6 violations for this system; 1 is health-based, and the most recent began in July 2017.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
3,996
Service connections
1,665
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Northwest Dyersburg U.D. compare with other water systems in Dyer County?
By EPA's size categories, Northwest Dyersburg U.D. is a medium system (3,301 to 10,000 people). Dyer County has 6 active public water systems, and Northwest Dyersburg U.D. is the 3rd-largest of them by population served. Its population served is about 35% below the county average of 6,188 people per system, and accounts for 11% of the 37,128 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 Northwest Dyersburg U.D. is about 40% 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. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 1,038 Tennessee systems (75%) list groundwater as their primary source.
Who owns and regulates Northwest Dyersburg U.D.?
EPA lists Northwest Dyersburg 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. 4 of the 6 active systems in Dyer County (67%) are also owned by a local government.
Does Northwest Dyersburg U.D. have drinking water violations?
EPA's records list 6 violations for this system; 1 is health-based, and the most recent began in July 2017. The violations listed here began between November 1989 and July 2017. By type: 4 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) (5 of them). EPA lists 5 as archived and 1 as resolved. 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.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2017-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 1994-05-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1993-03-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1990-08-01 | Monitoring and reportingMonitoring, Repeat Major (TCR) · code 25 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1990-08-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 1989-11-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Archived |
All 6 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.
Northwest Dyersburg U.D.: frequently asked questions
Who runs Northwest Dyersburg U.D.?
Northwest Dyersburg U.D. (PWSID TN0000518) is a community water system owned by a local government. It is regulated by the TN state drinking water program.
How many people does Northwest Dyersburg U.D. serve?
Northwest Dyersburg U.D. reports serving 3,996 people through 1,665 service connections in Dyer County, Tennessee.
Where does Northwest Dyersburg U.D. 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 Northwest Dyersburg U.D. have any drinking water violations?
EPA's records list 6 violations for this system; 1 is health-based, and the most recent began in July 2017. 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 Northwest Dyersburg 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 6 violations for this system; 1 is health-based, and the most recent began in July 2017. For current results, consult the system's annual water quality report, EPA ECHO, or the TN state drinking water program.
Where can I find Northwest Dyersburg U.D.'s water quality report?
As a community water system, Northwest Dyersburg 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 Dyer County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Dyersburg Water Dept | Dyer | 19,970 | Community | Groundwater |
| Newbern Water Dept | Dyer | 8,098 | Community | Groundwater |
| Dyersburg Suburban C.U.D. | Dyer | 3,538 | Community | Groundwater |
| Trimble Water System | Dyer | 776 | Community | Groundwater |
| The Hillshire Brands Company | Dyer | 750 | Non-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, “Northwest Dyersburg U.D., PWSID TN0000518, Tennessee”, https://aquacensus.com/water-systems/tennessee/northwest-dyersburg-u-d-tn0000518 (data as of October 1, 2026).