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Community Water System · PWS TN0000515

Northeast Knox U.d.

Corryton, Tennessee 37721 - drinking water served from surface water sources to 27,941 people, tracked in EPA SDWIS and UCMR5.

27,941
People served
32
EPA violations
2
Health-based
No PFAS
UCMR5 result

The verdict

EPA records 32 drinking-water violations at Northeast Knox U.d., 6% of them health-based - below the Tennessee per-system average.

32
Total EPA violations on record
6%
Health-based (MCL / treatment failure)
27,941
People served by this system
0
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Northeast Knox U.d.

Northeast Knox U.d. is a local-owned community water system that delivers drinking water to 27,941 residents in Corryton, Tennessee (Knox County) through 11,642 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 32 total violations for this system , of which 2 (6%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 30 monitoring and reporting violations are on file. The most recent violation on record dates to 2023.

The most frequently cited contaminant at this system is Radium-228, recorded in 4 violations (MR). This system was sampled under EPA's UCMR5 PFAS monitoring program and no PFAS compounds were detected above the minimum reporting level.

Across Tennessee, EPA tracks 762 public water systems serving 7,934,203 people, with 43,318 cumulative violations and 9,414 health-based violations on record. About 94% of systems in the state carry at least one violation, and state-wide the average per system is 56.8 violations. Statewide, 93 of 277 UCMR5-tested systems have reported PFAS detections (33.6%).

Northeast Knox U.d.'s 32 violations sit below the Tennessee average.

All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served
27,941
Total Violations
32
Health-Based Violations
2
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
11,642
County
Knox
School/Daycare
No
MCL Violations
2
Monitoring Violations
30
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Radium-228 MR 4 2008
CARBON, TOTAL MR 4 2021
TTHM MR 4 2023
Total Haloacetic Acids (HAA5) MR 4 2023
Radium-226 MR 4 2008
Gross Alpha, Excl. Radon and U MR 4 2008
Coliform (TCR) MR 3 2008
Chlorine MR 3 2008
DICHLOROMETHANE MCL 2 1996

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 0 of 116 samples detected PFAS.

Contaminant Date Result MRL Status
PFMPA 9/11/2024 <4.00 ppt 4.00 ppt Not Detected
9Cl-PF3ONS 9/11/2024 <2.00 ppt 2.00 ppt Not Detected
ADONA 9/11/2024 <3.00 ppt 3.00 ppt Not Detected
HFPO-DA 9/11/2024 <5.00 ppt 5.00 ppt Not Detected
PFBA 9/11/2024 <5.00 ppt 5.00 ppt Not Detected
6:2 FTS 9/11/2024 <5.00 ppt 5.00 ppt Not Detected
PFPeA 9/11/2024 <3.00 ppt 3.00 ppt Not Detected
8:2 FTS 9/11/2024 <5.00 ppt 5.00 ppt Not Detected
PFMBA 9/11/2024 <3.00 ppt 3.00 ppt Not Detected
11Cl-PF3OUdS 9/11/2024 <5.00 ppt 5.00 ppt Not Detected
NFDHA 9/11/2024 <20.00 ppt 20.00 ppt Not Detected
PFPeS 9/11/2024 <4.00 ppt 4.00 ppt Not Detected
PFEESA 9/11/2024 <3.00 ppt 3.00 ppt Not Detected
4:2 FTS 9/11/2024 <3.00 ppt 3.00 ppt Not Detected
NMeFOSAA 9/11/2024 <6.00 ppt 6.00 ppt Not Detected
PFUnA 9/11/2024 <2.00 ppt 2.00 ppt Not Detected
PFHpS 9/11/2024 <3.00 ppt 3.00 ppt Not Detected
PFTA 9/11/2024 <8.00 ppt 8.00 ppt Not Detected
PFTrDA 9/11/2024 <7.00 ppt 7.00 ppt Not Detected
NEtFOSAA 9/11/2024 <5.00 ppt 5.00 ppt Not Detected
PFBS 9/11/2024 <3.00 ppt 3.00 ppt Not Detected
PFHpA 9/11/2024 <3.00 ppt 3.00 ppt Not Detected
PFHxS 9/11/2024 <3.00 ppt 3.00 ppt Not Detected
PFNA 9/11/2024 <4.00 ppt 4.00 ppt Not Detected
PFOS 9/11/2024 <4.00 ppt 4.00 ppt Not Detected
PFOA 9/11/2024 <4.00 ppt 4.00 ppt Not Detected
PFDA 9/11/2024 <3.00 ppt 3.00 ppt Not Detected
PFDoA 9/11/2024 <3.00 ppt 3.00 ppt Not Detected
PFHxA 9/11/2024 <3.00 ppt 3.00 ppt Not Detected
8:2 FTS 6/18/2024 <5.00 ppt 5.00 ppt Not Detected
PFUnA 6/18/2024 <2.00 ppt 2.00 ppt Not Detected
11Cl-PF3OUdS 6/18/2024 <5.00 ppt 5.00 ppt Not Detected
9Cl-PF3ONS 6/18/2024 <2.00 ppt 2.00 ppt Not Detected
ADONA 6/18/2024 <3.00 ppt 3.00 ppt Not Detected
HFPO-DA 6/18/2024 <5.00 ppt 5.00 ppt Not Detected
4:2 FTS 6/18/2024 <3.00 ppt 3.00 ppt Not Detected
6:2 FTS 6/18/2024 <5.00 ppt 5.00 ppt Not Detected
PFDoA 6/18/2024 <3.00 ppt 3.00 ppt Not Detected
NMeFOSAA 6/18/2024 <6.00 ppt 6.00 ppt Not Detected
PFBA 6/18/2024 <5.00 ppt 5.00 ppt Not Detected
NEtFOSAA 6/18/2024 <5.00 ppt 5.00 ppt Not Detected
PFTrDA 6/18/2024 <7.00 ppt 7.00 ppt Not Detected
PFOA 6/18/2024 <4.00 ppt 4.00 ppt Not Detected
PFOS 6/18/2024 <4.00 ppt 4.00 ppt Not Detected
PFNA 6/18/2024 <4.00 ppt 4.00 ppt Not Detected
PFHxS 6/18/2024 <3.00 ppt 3.00 ppt Not Detected
PFBS 6/18/2024 <3.00 ppt 3.00 ppt Not Detected
PFMPA 6/18/2024 <4.00 ppt 4.00 ppt Not Detected
PFTA 6/18/2024 <8.00 ppt 8.00 ppt Not Detected
PFHxA 6/18/2024 <3.00 ppt 3.00 ppt Not Detected

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records, or to file a complaint, request a Consumer Confidence Report, or check current monitoring status, go directly to the federal and state regulators that enforce the Safe Drinking Water Act for Northeast Knox U.d..

Federal Source of Truth

EPA SDWIS, Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID TN0000515 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Tennessee Drinking Water Authority

Tennessee Department of Environment & Conservation, Drinking Water is the primacy agency that licenses and inspects Northeast Knox U.d. under EPA-delegated authority.

Open TN regulator portal

Source: Tennessee Department of Environment & Conservation, Drinking Water

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2023 TTHM MR 4 SDWIS / TN0000515 / 2950
2023 Total Haloacetic Acids (HAA5) MR 4 SDWIS / TN0000515 / 2456
2021 CARBON, TOTAL MR 4 SDWIS / TN0000515 / 2920
2008 Radium-228 MR 4 SDWIS / TN0000515 / 4030
2008 Radium-226 MR 4 SDWIS / TN0000515 / 4020
2008 Gross Alpha, Excl. Radon and U MR 4 SDWIS / TN0000515 / 4000
2008 Coliform (TCR) MR 3 SDWIS / TN0000515 / 3100
2008 Chlorine MR 3 SDWIS / TN0000515 / 0999
1996 DICHLOROMETHANE MCL 2 SDWIS / TN0000515 / 2964

How Northeast Knox U.d. Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric Northeast Knox U.d. Tennessee avg Federal benchmark
Total violations 32 56.8 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 2 12.4 Indicates a contaminant exceeded a federal MCL
PFAS detection None 33.6% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 27,941 10,412 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 762 regulated public water systems in Tennessee.

Federal MCL reference, Safe Drinking Water Act thresholds
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is Northeast Knox U.d. water safe to drink?
Northeast Knox U.d. (PWS ID: TN0000515) has 32 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 27,941 people using Surface Water sources.
How many people does Northeast Knox U.d. serve?
Northeast Knox U.d. serves 27,941 people in Corryton, Tennessee. It is a Local-owned system using Surface Water water sources with 11,642 service connections.
What type of violations does Northeast Knox U.d. have?
Northeast Knox U.d. has 32 total violations: 2 health-based violations (MCL exceedances or treatment failures), 30 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Northeast Knox U.d. water?
No. Northeast Knox U.d. was tested for PFAS under the EPA's UCMR5 monitoring program and no PFAS contamination was detected.
What water source does Northeast Knox U.d. use?
Northeast Knox U.d. uses Surface Water as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from?
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. PFAS data from EPA UCMR5 monitoring program (2023-2025). This data is provided for informational purposes only.
Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.