Skip to content
TapBuff
ZIP

Minor Hill Water Utility District

What EPA’s and CDC’s records show in this utility’s water: PFAS and lithium; nitrate, arsenic and other regulated chemicals; lead and copper; and violations since 2016, with the certification that handles each result.

Serves
8,364 people
Connections
3,414
Water source
Surface water bought from another system
Based in
Minor Hill, TN
County
Giles
Owner
Local government
The 4 ZIP codes it serves

38460, 38473, 38477, 38478

The short answer

1 result is above EPA’s legal limit, 1 more is above EPA’s new limit, which takes effect in 2029, and 1 more is above the health goal. The worst: Haloacetic acids (HAA5), above the legal limit. 4 health-based violations since 2016.

What handles it

What was found

PFAS and lithium: EPA UCMR 5, samples taken from Feb. 21, 2024 to Sept. 10, 2025.

Lead and copper: EPA SDWIS monitoring periods ending 2004 to 2025.

Haloacetic acids (HAA5) and total trihalomethanes (TTHM): Tennessee’s yearly averages per water system, as CDC’s Environmental Public Health Tracking Network publishes them, 2020 to 2022, with EPA’s 2012 to 2019 file for earlier years.

PFAS: PFOS was found, of the six PFAS in EPA’s 2024 drinking water rule; its result is below. None of the other 23 PFAS tested for was found.

EPA’s 2024 PFAS rule, compound by compound

PFASEPA’s limitResult
PFOA4.0 pptNot foundNot found in any of 8 samples, below 4 ppt
PFOS4.0 pptAbove EPA’s new limit (2029)5.0 ppt highest, found in 1 of 8 samples. Details
PFHxS10 pptNot foundNot found in any of 8 samples, below 3 ppt
PFNA10 pptNot foundNot found in any of 8 samples, below 4 ppt
HFPO-DA (GenX)10 pptNot foundNot found in any of 8 samples, below 5 ppt
PFBSIndex onlyNot foundNot found in any of 8 samples, below 3 ppt
Hazard IndexPFHxS, PFNA, HFPO-DA and PFBS together1Doesn’t applyDoesn’t apply: no sampling location found two or more of the four
Results from EPA’s UCMR 5 sampling. “Below” is the lab’s reporting level: a result under it reads as not found, which is not the same as zero. The limits are EPA’s 2024 rule, with compliance due from 2029; EPA has since proposed changes to some of them, explained on each compound’s page. PFBS has no limit of its own and counts only toward the Hazard Index, which adds up the four, each against EPA’s health-based level, from each sampling location’s average, as EPA’s UCMR 5 summary does. It counts only where two or more of the four were found, and is above the limit from 1.5.

About PFAS certifications

NSF’s PFAS claims are tested to below 20 ppt. EPA’s limit is 4.0 ppt, and EPA says no certification yet shows a filter reaching its levels.

Above the legal limit1

Haloacetic acids (HAA5)

Forms or is added in treatment

Above the legal limit

46.3ppb

Highest yearly average, 2020 to 2022

Averaged by year, the highest was 46.3 ppb, in 2022, below EPA’s legal limit of 60 ppb. That was also the latest year on file. EPA judges this limit at each sampling point, and recorded a violation for haloacetic acids (HAA5) at this utility in 2023. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 57.7 ppb, in 2016, and EPA recorded violations in 2013 and 2016.

What handles it

No certification claim covers this compound yet.

Above EPA’s new limit, which takes effect in 20291

PFOS

Comes from the source

Above EPA’s new limit (2029)

5.0ppt

Highest sample, Sept. 10, 2025; found in 1 of 8

The highest sample was 5.0 ppt, above EPA’s new limit of 4.0 ppt, which takes effect in 2029. EPA’s health goal is zero. Compliance will be judged on a running annual average, not one sample. Averaged by sampling location, as EPA compares its UCMR 5 results with the limit, the highest was 1.3 ppt, below it.

What handles it

Above the health goal1

Lead

Comes from pipes, often your own

Above the health goal

2.0ppb

90th percentile, 2023 to 2025

In the latest period, 9 in 10 homes sampled were at or below 2.0 ppb, below EPA’s action level of 15 ppb. The action level drops to 10 ppb on Nov. 1, 2027. EPA’s health goal for lead is zero.

What handles it

Below EPA’s limits1

Total trihalomethanes (TTHM)

Forms or is added in treatment

Below EPA’s limits

46.7ppb

Highest yearly average, 2020 to 2022

Averaged by year, the highest was 46.7 ppb, in 2022, below EPA’s legal limit of 80 ppb. That was also the latest year on file. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 55.4 ppb, in 2016.

What handles it

  • NSF/ANSI 53 look for “Trihalomethanes (TTHM) Reduction”
  • NSF/ANSI 58 look for “Trihalomethanes (TTHM) Reduction”
Tennessee utilities above EPA’s PFAS limits
29 compounds tested and not foundBelow the reporting level in every sample. Not found is not the same as zero.
  • 11Cl-PF3OUdS
  • 4:2 FTS
  • 6:2 FTS
  • 8:2 FTS
  • 9Cl-PF3ONS
  • ADONA
  • HFPO-DA (GenX)
  • Lithium
  • NEtFOSAA
  • NFDHA
  • NMeFOSAA
  • PFBA
  • PFBS
  • PFDA
  • PFDoA
  • PFEESA
  • PFHpA
  • PFHpS
  • PFHxA
  • PFHxS
  • PFMBA
  • PFMPA
  • PFNA
  • PFOA
  • PFPeA
  • PFPeS
  • PFTA
  • PFTrDA
  • PFUnA

What handles it

A certification covers specific claims, not a whole standard. Look for these claims on the certifier’s listing, not the box. Wording varies a little: NSF writes “Lead Reduction,” WQA just “Lead.”

  • NSF/ANSI 53

    Claims: PFOS Reduction, Lead Reduction

    For: PFOS, Lead

    Other certifiers’ wording: Total PFAS Reduction; Perfluorooctane Sulfonate (PFOS)

  • NSF/ANSI 58

    Claims: Perfluorooctane Sulfonate (PFOS), Lead Reduction

    For: PFOS, Lead

At the tap, or for the whole house?

Lead and copper usually come from pipes and fixtures inside or near your home. A whole-house system sits where water enters, so it cannot catch what your own plumbing adds after it. For those, the filter that counts is the one at the tap. How whole-house systems compare.

Filters with those claims on a certifier’s listing

Disclosure: TapBuff earns a commission if you buy through some links on this page. It does not change which standard or filter we name. As an Amazon Associate, TapBuff earns from qualifying purchases. How TapBuff makes money

Compare five-year costs

The best water filters for PFAS, ranked

The best water filters for lead, ranked

Disinfectant

Minor Hill Water Utility District reported disinfecting with chlorine, not chloramine, at all 2 of its sampling points, in its 2024 to 2025 sampling for EPA.

Chlorine leaves water that sits out for a few days, CDC says. A filter certified for it carries a chlorine claim under NSF/ANSI 42; a shower filter, a free chlorine claim under NSF/ANSI 177. This utility buys its water from another system, so what it reported may leave out treatment done before the water reaches it. This is what the utility reported for that sampling. Its annual water quality report says what it uses now.

Chlorine vs. chloramineShower filters, by what their listings cover

Violations since 2016

Contaminant or ruleTypePeriodMeasuredStatus
Total Haloacetic Acids (HAA5)The running average was above the legal limit.EPA: Maximum Contaminant Level Violation, AverageJuly 1, 2023 to Sept. 30, 20230.065 MG/LResolved
Total Haloacetic Acids (HAA5)The running average was above the legal limit.EPA: Maximum Contaminant Level Violation, AverageOct. 1, 2016 to Dec. 31, 20160.063 MG/LResolved
Total Haloacetic Acids (HAA5)The running average was above the legal limit.EPA: Maximum Contaminant Level Violation, AverageJuly 1, 2016 to Sept. 30, 20160.064 MG/LResolved
Total Haloacetic Acids (HAA5)The running average was above the legal limit.EPA: Maximum Contaminant Level Violation, AverageApril 1, 2016 to June 30, 20160.063 MG/LResolved
Health-based violations only. Resolved and archived mean the utility returned to compliance or the state closed the record. 18 monitoring or reporting violations not shown.

What this report can’t tell you

  • Everything else. Haloacetic acids (HAA5) and total trihalomethanes (TTHM) results here are Tennessee’s yearly averages as CDC publishes them, from 2020 on, with EPA’s national file for 2012 to 2019. Minor Hill Water Utility District’s own annual report, which it must send you every year, has the contaminants this page does not show.

  • Your own plumbing. Lead results are the 90th percentile across homes the utility samples. Your home’s service line, solder and fixtures decide yours. A certified lab test is the only way to know.

  • What it means for your health. This page reports what the records show and EPA’s limits and goals; it is not medical advice. If you are worried about a health effect, talk to a doctor or your local health department.

  • Anything after the latest data. SDWIS data is from 2026 Q3; UCMR 5 samples are from Feb. 21, 2024 to Sept. 10, 2025; CDC’s yearly averages for Tennessee cover 2020 to 2022.

Testing your own tap

Minor Hill Water Utility District’s results are for the water it sends out. What your own service line, solder and fixtures add shows up only in a test of your tap, by a lab Tennessee certifies.

No lab Tennessee certifies is within 75 miles of the area Minor Hill Water Utility District serves on the state’s list. Some take samples by mail; the state’s page lists them all.

Tennessee Department of Health: Water quality testing for eligible private wells and springs, through the program formerly called SafeWATCH. Contact the department's Waterborne Disease Team to ask about eligibility. Free for eligible wells and springs. Waterborne Diseases, Tennessee Department of Health.

All 37 certified labs for Tennessee

Sources

PWSID TN0000469. Rebuilt from EPA data on Oct. 18, 2026.

Towns it serves

Also in Giles County

All Tennessee utilities

What to do next