Knoxville Water Quality
Tennessee
According to EPA SDWIS, Knoxville, Tennessee is served by 11 community water systems covering about 574,609 people. The same extract lists 14 health-based violation records, most recently coded 4010 in 2022. Counts are historical EPA registry rows, not a current compliance or drinkability score.
Drinking water in Knoxville, Tennessee is delivered through 11 EPA-regulated community water systems serving an estimated 574,609 people. Each system is tracked in the EPA Safe Drinking Water Information System (SDWIS) under the Safe Drinking Water Act, which requires testing for regulated contaminants, consumer notification of violations, and publication of an annual Consumer Confidence Report.
PlainEnviro's health-based SDWIS extract shows 14 violation records across the 11 active community systems shown here. Monitoring and reporting records are not present in the extract. The records carry 4 distinct EPA contaminant codes: Combined Radium (-226 and -228), Total Haloacetic Acids (HAA5), Revised Total Coliform Rule, Coliform (Pre-TCR). 21 TRI-reporting industrial facilities are also located within the city limits.
A past EPA health-based registry row does not describe water delivered today or current compliance status; utilities notify customers and remediate under state primacy oversight when required. For current water-quality status and treatment practices, review your local utility's most recent Consumer Confidence Report or contact the Tennessee drinking water program. All records above reflect federal EPA SDWIS data and are not independently verified against state databases.
Community Water Systems
| System Name | Pop. Served | Violations | Status |
|---|---|---|---|
| KNOXVILLE UTILITIES BOARD - KUB | 254,671 | 0 | Clean |
| FIRST U.D. OF KNOX COUNTY | 115,531 | 0 | Clean |
| HALLSDALE-POWELL U.D. | 84,315 | 2 | Health |
| WEST KNOX UTILITY DISTRICT | 77,825 | 2 | Health |
| KNOX-CHAPMAN UTILITY DISTRICT | 41,311 | 0 | Clean |
| GREEN MEADOW ESTATES OF ROCKFORD LLC | 250 | 6 | Health |
| THE BARN MOBILE HOME PARK | 232 | 0 | Clean |
| TARGET RANGE TRAILER COURT LLC | 200 | 0 | Clean |
| COUNTRY ACRES FARM | 119 | 0 | Clean |
| CHOCTAW ESTATES, LLC | 105 | 4 | Health |
| EVERGREEN ESTATES OF LEBANON LLC | 50 | 0 | Clean |
Does this city have health-based water violations?
These health-based records can represent Maximum Contaminant Level (MCL), Treatment Technique (TT), or Maximum Residual Disinfectant Level (MRDL) categories. A historical record does not establish that water is currently unsafe.
| Water system | Contaminant | Begin Date |
|---|---|---|
| GREEN MEADOW ESTATES OF ROCKFORD LLC | Combined Radium (-226 and -228) | 2022-01-01 |
| GREEN MEADOW ESTATES OF ROCKFORD LLC | Combined Radium (-226 and -228) | 2021-10-01 |
| GREEN MEADOW ESTATES OF ROCKFORD LLC | Combined Radium (-226 and -228) | 2021-07-01 |
| GREEN MEADOW ESTATES OF ROCKFORD LLC | Combined Radium (-226 and -228) | 2021-04-01 |
| GREEN MEADOW ESTATES OF ROCKFORD LLC | Combined Radium (-226 and -228) | 2021-01-01 |
| GREEN MEADOW ESTATES OF ROCKFORD LLC | Combined Radium (-226 and -228) | 2020-10-01 |
| WEST KNOX UTILITY DISTRICT | Total Haloacetic Acids (HAA5) | 2017-04-01 |
| WEST KNOX UTILITY DISTRICT | Total Haloacetic Acids (HAA5) | 2017-04-01 |
| CHOCTAW ESTATES, LLC | Revised Total Coliform Rule | 2016-09-01 |
| HALLSDALE-POWELL U.D. | Total Haloacetic Acids (HAA5) | 2016-04-01 |
| HALLSDALE-POWELL U.D. | Total Haloacetic Acids (HAA5) | 2016-04-01 |
| CHOCTAW ESTATES, LLC | Coliform (Pre-TCR) | 1981-05-31 |
| CHOCTAW ESTATES, LLC | Coliform (Pre-TCR) | 1980-02-29 |
| CHOCTAW ESTATES, LLC | Coliform (Pre-TCR) | 1980-01-31 |
What are Knoxville's health-based records for?
Knoxville's health-based violation records carry 4 distinct EPA codes: some name a substance, others the drinking-water rule that was breached. Counts are records on file in the EPA SDWIS extract, not current test results.
| Contaminant | Records | Systems |
|---|---|---|
| Combined Radium (-226 and -228) | 6 | 1 |
| Total Haloacetic Acids (HAA5) | 4 | 2 |
| Coliform (Pre-TCR) | 3 | 1 |
| Revised Total Coliform Rule | 1 | 1 |
TRI Facilities in Knoxville
| Facility | Total Releases |
|---|---|
| Explore Industries USA Inc | 3.2M lbs |
| Rohm & Haas Chemicals LLC - Knoxville Site | 297.5K lbs |
| Cemex Construction Materials Atlantic LLC | 141.9K lbs |
| Cmc Steel Tennessee | 97.9K lbs |
| G & B Specialties Inc. D/b/a Unitrac Railroad Materials | 21.2K lbs |
| Mplx Terminals LLC - Knoxville Tn LP Terminal | 12.0K lbs |
| Corechem Inc. | 9.0K lbs |
| Schick Manufacturing Inc | 2.9K lbs |
| Bam Inc. | 517 lbs |
| Lambcon Ready Mix | 110 lbs |
Frequently Asked Questions
What does EPA SDWIS list for drinking water in Knoxville, Tennessee? ▼
How many water violations does Knoxville have in this EPA extract? ▼
What contaminants were found in Knoxville water? ▼
How many water systems serve Knoxville? ▼
Where does Knoxville get its drinking water? ▼
Are there pollution sources near Knoxville? ▼
How does Knoxville compare in Tennessee?
Of the 281 Tennessee places with at least one community water system on file, Knoxville ranks #1 by number of systems (11).
Either side of it: Sevierville (8), Elizabethton (7)
About This Data
Figures here are the current EPA SDWIS extract joined to the 11 community water systems whose service area lists Knoxville, ranked against the 281 Tennessee places with at least one system on file. Data current as of 2026-08-25.
Water system data comes from the EPA's Safe Drinking Water Information System (SDWIS). PlainEnviro's violation fetch is restricted upstream to records EPA flags as health-based and then joined to active community water systems. Monitoring and reporting violations are not included.
A health-based violation row in this extract is a historical EPA registry entry. It does not describe water delivered today or current compliance status. Many records are later resolved, and public water systems notify customers when required. For current conditions, contact your local water utility or the state drinking water program.
TRI facility data comes from the EPA Toxic Release Inventory. Facilities shown are those that self-report to the TRI program. PlainEnviro presents this data without advocacy framing.
Read our methodology - how this data is sourced, computed, and verified.