Public water system · TN0000635
ActiveWalden'S Ridge U.D.
At a glance
Walden'S Ridge U.D. (PWSID TN0000635) is an active community water system in Hamilton County, Tennessee. It reports serving 9,265 people through 3,893 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in October 2013.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
9,265
Service connections
3,893
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Walden'S Ridge U.D. compare with other water systems in Hamilton County?
By EPA's size categories, Walden'S Ridge U.D. is a medium system (3,301 to 10,000 people). Hamilton County has 11 active public water systems, and Walden'S Ridge U.D. is the 6th-largest of them by population served. Its population served is well below the county average of 37,270 people per system, and accounts for 2.3% of the 409,965 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 Walden'S Ridge U.D. is about 38% above 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 Walden'S Ridge U.D.?
EPA lists Walden'S Ridge 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. 7 of the 11 active systems in Hamilton County (64%) are also owned by a local government.
Does Walden'S Ridge U.D. have drinking water violations?
Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in October 2013. The violations listed here began between August 1995 and October 2013. By type: 9 monitoring and reporting, 2 contaminant level above the legal limit and 1 required treatment not met. The contaminant or rule involved most often is Haloacetic acids (HAA5) (3 of them). EPA lists 11 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 |
|---|---|---|---|---|
| 2013-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2013-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2008-02-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2008-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2007-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2007-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2006-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2006-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2005-07-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2004-11-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2003-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Tetrachloroethylenecode 2987 | Yes | Resolved |
| 1995-08-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Surface Water Treatment Rulecode 0200 | Yes | Archived |
The 12 most recent 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.
Walden'S Ridge U.D.: frequently asked questions
Who runs Walden'S Ridge U.D.?
Walden'S Ridge U.D. (PWSID TN0000635) is a community water system owned by a local government. It is regulated by the TN state drinking water program.
How many people does Walden'S Ridge U.D. serve?
Walden'S Ridge U.D. reports serving 9,265 people through 3,893 service connections in Hamilton County, Tennessee.
Where does Walden'S Ridge 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 Walden'S Ridge U.D. have any drinking water violations?
Of the 12 most recent violations in EPA's records, 3 are 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 Walden'S Ridge 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. Of the 12 most recent violations in EPA's records, 3 are 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 TN state drinking water program.
Where can I find Walden'S Ridge U.D.'s water quality report?
As a community water system, Walden'S Ridge 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 Hamilton County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Tennessee American Water | Hamilton | 207,046 | Community | Surface water |
| Hixson Utility District | Hamilton | 68,306 | Community | Groundwater |
| Eastside Utility District | Hamilton | 59,612 | Community | Surface water |
| Savannah Valley U.D. | Hamilton | 30,571 | Community | Groundwater under influence of surface water |
| Northwest Utility District | Hamilton | 20,710 | Community | Surface water |
| Signal Mountain Water System | Hamilton | 7,761 | 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, “Walden'S Ridge U.D., PWSID TN0000635, Tennessee”, https://aquacensus.com/water-systems/tennessee/walden-s-ridge-u-d-tn0000635 (data as of October 1, 2026).