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States → Tennessee

Non-Transient Non-Community Water System · PWS TN0004300

Sontara Old Hickory, Inc.

Old Hickory, Tennessee 37183 - drinking water served from surface water sources to 604 people, tracked in EPA SDWIS and UCMR5.

604
People served
297
EPA violations
103
Health-based
Untested
UCMR5 result

The verdict

EPA records 297 drinking-water violations at Sontara Old Hickory, Inc., 35% of them health-based - above the Tennessee per-system average.

297
Total EPA violations on record
35%
Health-based (MCL / treatment failure)
604
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Sontara Old Hickory, Inc.

Sontara Old Hickory, Inc. is a private-owned non-transient non-community water system that delivers drinking water to 604 residents in Old Hickory, Tennessee (Davidson County) through 1 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 297 total violations for this system , of which 103 (35%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 170 monitoring and reporting violations are on file. The most recent violation on record dates to 2022.

The most frequently cited contaminant at this system is Interim Enhanced Surface Water Treatment Rule, recorded in 48 violations (TT, health-based). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

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%).

Sontara Old Hickory, Inc.'s 297 violations sit above 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
604
Total Violations
297
Health-Based Violations
103
Water Source
Surface Water

System Details

System Type
Non-Transient Non-Community
Owner Type
Private
Connections
1
County
Davidson
School/Daycare
No
MCL Violations
51
Monitoring Violations
170
Treatment Tech Violations
52

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Interim Enhanced Surface Water Treatment Rule TT 48 2022
Total Haloacetic Acids (HAA5) MCL 41 2011
Public Notice Other 17 2018
Coliform (TCR) MR 15 2004
TTHM MCL 10 2011
Surface Water Treatment Rule MR 8 2002
CARBON, TOTAL MR 6 2006
E. COLI MR 5 2009
Surface Water Treatment Rule TT 4 2015
Simazine MR 4 2017
Picloram MR 4 2017
2,4-D MR 4 2017
Xylenes, Total MR 4 2016
o-Dichlorobenzene MR 4 2016
1,1-Dichloroethylene MR 4 2016
trans-1,2-Dichloroethylene MR 4 2016
Carbon tetrachloride MR 4 2016
1,2-Dichloropropane MR 4 2016
Trichloroethylene MR 4 2016
Tetrachloroethylene MR 4 2016
CHLOROBENZENE MR 4 2016
Benzene MR 4 2016
Ethylbenzene MR 4 2016
TTHM MR 4 2021
1,2-Dichloroethane MR 4 2016
cis-1,2-Dichloroethylene MR 4 2016
Toluene MR 4 2016
1,1,2-Trichloroethane MR 4 2016
Styrene MR 4 2016
Total Haloacetic Acids (HAA5) MR 4 2021

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 Sontara Old Hickory, Inc..

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 TN0004300 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 Sontara Old Hickory, Inc. 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
2022 Interim Enhanced Surface Water Treatment Rule TT 48 SDWIS / TN0004300 / 0300
2021 TTHM MR 4 SDWIS / TN0004300 / 2950
2021 Total Haloacetic Acids (HAA5) MR 4 SDWIS / TN0004300 / 2456
2018 Public Notice Other 17 SDWIS / TN0004300 / 7500
2017 Simazine MR 4 SDWIS / TN0004300 / 2037
2017 Picloram MR 4 SDWIS / TN0004300 / 2040
2017 2,4-D MR 4 SDWIS / TN0004300 / 2105
2017 LASSO MR 4 SDWIS / TN0004300 / 2051
2017 Long Term 2 Enhanced Surface Water Treatment Rule MR 2 SDWIS / TN0004300 / 0800
2016 Xylenes, Total MR 4 SDWIS / TN0004300 / 2955
2016 o-Dichlorobenzene MR 4 SDWIS / TN0004300 / 2968
2016 1,1-Dichloroethylene MR 4 SDWIS / TN0004300 / 2977
2016 trans-1,2-Dichloroethylene MR 4 SDWIS / TN0004300 / 2979
2016 Carbon tetrachloride MR 4 SDWIS / TN0004300 / 2982
2016 1,2-Dichloropropane MR 4 SDWIS / TN0004300 / 2983

How Sontara Old Hickory, Inc. Compares

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

Metric Sontara Old Hickory, Inc. Tennessee avg Federal benchmark
Total violations 297 56.8 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 103 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 604 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 Sontara Old Hickory, Inc. water safe to drink? ▼
Sontara Old Hickory, Inc. (PWS ID: TN0004300) has 297 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 604 people using Surface Water sources.
How many people does Sontara Old Hickory, Inc. serve? ▼
Sontara Old Hickory, Inc. serves 604 people in Old Hickory, Tennessee. It is a Private-owned system using Surface Water water sources with 1 service connections.
What type of violations does Sontara Old Hickory, Inc. have? ▼
Sontara Old Hickory, Inc. has 297 total violations: 103 health-based violations (MCL exceedances or treatment failures), 170 monitoring/reporting violations, and 52 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Sontara Old Hickory, Inc. water? ▼
No PFAS testing data is available for Sontara Old Hickory, Inc. under the EPA's UCMR5 monitoring program.
What water source does Sontara Old Hickory, Inc. use? ▼
Sontara Old Hickory, Inc. uses Surface Water as its primary water source. It is classified as a Non-Transient Non-Community Water System, serving the same people for at least 6 months per year.
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. This data is provided for informational purposes only.

Read our methodology - how this data is sourced, computed, and verified.

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.