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Dunfalls Association, Inc.

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

Serves
266 people
Connections
95
Water source
Groundwater bought from another system
Based in
Dunfalls, OH
County
Muskingum
Owner
Private
The ZIP code it serves

43734

The short answer

1 result is above the health goal. The worst: Lead, above the health goal. 1 health-based violation since 2016.

What handles it

What was found

Lead and copper: EPA SDWIS monitoring periods ending 2018 to 2025. Copper at 635 mg/L (2005) is left out of this report: it is one of the results Ohio sent EPA in 2006, all at µg/L magnitudes though EPA’s file marks them mg/L.

Total trihalomethanes (TTHM) and haloacetic acids (HAA5): Ohio’s own results, samples taken from July 16, 2020 to July 9, 2025, with EPA’s 2012 to 2019 file for earlier years.

Above the health goal1

Lead

Comes from pipes, often your own

Above the health goal

2.8ppb

90th percentile, 2025

In the latest period, 9 in 10 homes sampled were at or below 2.8 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 limits2

Total trihalomethanes (TTHM)

Forms or is added in treatment

Below EPA’s limits

56.9ppb

Highest yearly average, 2020 to 2025

2025, one sample: 30.6 ppb

Averaged by year, the highest was 56.9 ppb, in 2024, below EPA’s legal limit of 80 ppb. In 2025, the latest year on file, its one sample was 30.6 ppb. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 62 ppb, in 2019.

What handles it

  • NSF/ANSI 53 look for “Trihalomethanes (TTHM) Reduction”
  • NSF/ANSI 58 look for “Trihalomethanes (TTHM) Reduction”

Haloacetic acids (HAA5)

Forms or is added in treatment

Below EPA’s limits

22.9ppb

Highest yearly average, 2020 to 2025

2025, one sample: 7.1 ppb

Averaged by year, the highest was 22.9 ppb, in 2020, below EPA’s legal limit of 60 ppb. In 2025, the latest year on file, its one sample was 7.1 ppb. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 23.7 ppb, in 2014.

What handles it

No certification claim covers this compound yet.

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.”

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 lead, ranked

Violations since 2016

Contaminant or ruleTypePeriodMeasuredStatus
Lead and Copper Rule RevisionsThe required inventory of lead service lines was not completed or submitted on time.EPA: LSL InventoryOct. 17, 2024—Resolved
Health-based violations only. Resolved and archived mean the utility returned to compliance or the state closed the record. 7 monitoring or reporting violations not shown.

What this report can’t tell you

  • Everything else. Total trihalomethanes (TTHM) and haloacetic acids (HAA5) results here are Ohio’s own from 2020 on, with EPA’s national file for 2012 to 2019. Dunfalls Association, Inc.’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 didn’t sample this utility; Ohio’s results run from July 16, 2020 to July 9, 2025.

Testing your own tap

Dunfalls Association, Inc.’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 Ohio certifies.

The 3 labs Ohio certifies closest to the area Dunfalls Association, Inc. serves, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.

  • SafeSource Water Analytics LLC

    McConnelsville, OH · about 14 miles

    Certified for bacteria, nitrate

    (740) 292-2002

  • Coshocton Environmental Testing, LLC

    Coshocton, OH · about 26 miles

    Certified for bacteria, nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, disinfection byproducts

    (740) 622-3328

  • Microbac Laboratories, Inc. - Marietta Division

    Marietta, OH · about 40 miles

    Certified for nitrate, lead and copper, metals, minerals and other inorganics, PFAS

    (740) 373-4071

All 76 certified labs for Ohio

Sources

PWSID OH6000303. Rebuilt from EPA data on Oct. 18, 2026.

Also in Muskingum County

All Ohio utilities

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