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Middlefield Mobile Home Park

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
400 people
Connections
154
Water source
Groundwater
Based in
Middlefield, OH
County
Geauga
Owner
Private
The ZIP code it serves

44062

The short answer

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

What handles it

What was found

Lead and copper: copper at 50 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.

Copper: EPA’s file records a utility’s copper only when it exceeds the action level. The last here was 1.6 ppm, for the period ending June 30, 1994. None since is on file, so it is not counted as a current finding.

Arsenic, total trihalomethanes (TTHM), fluoride, haloacetic acids (HAA5), nitrate and chromium (total): Ohio’s own results, samples taken from Jan. 15, 2020 to Dec. 5, 2025, with EPA’s 2012 to 2019 file for earlier years.

Above the health goal1

Arsenic

Comes from the source

Above the health goal

1.5ppb

Highest yearly average, 2020 to 2023

2023: not found

Averaged by year, the highest was 1.5 ppb, in 2020: below EPA’s legal limit of 10 ppb, but above its health goal of zero. Its highest single sample was 3.0 ppb. In 2023, the latest year on file, it wasn’t found in its one sample. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 3.0 ppb, in 2014.

What handles it

  • NSF/ANSI 58 look for “Arsenic (Pentavalent)<=50 ppb Reduction”
  • NSF/ANSI 53 look for “Arsenic (Pentavalent)<=50 ppb Reduction”

Below EPA’s limits4

Total trihalomethanes (TTHM)

Forms or is added in treatment

Below EPA’s limits

33.3ppb

Highest yearly average, 2020 to 2025

2025 average: 28.5 ppb

Averaged by year, the highest was 33.3 ppb, in 2022, below EPA’s legal limit of 80 ppb. Its highest single sample was 43.7 ppb. In 2025, the latest year on file, its four samples averaged 28.5 ppb. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 146 ppb, in 2014, and EPA recorded a violation in 2018.

What handles it

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

Fluoride

Forms or is added in treatment

Below EPA’s limits

0.77ppm

Highest yearly average, 2020 to 2023

Averaged by year, the highest was 0.77 ppm, in 2023, below EPA’s legal limit of 4.0 ppm. That was also the latest year on file. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 0.77 ppm, in 2017.

What handles it

Haloacetic acids (HAA5)

Forms or is added in treatment

Below EPA’s limits

8.6ppb

Highest yearly average, 2020 to 2025

2025 average: 2.0 ppb

Averaged by year, the highest was 8.6 ppb, in 2022, below EPA’s legal limit of 60 ppb. Its highest single sample was 15.1 ppb. In 2025, the latest year on file, its four samples averaged 2.0 ppb. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 55.1 ppb, in 2014.

What handles it

No certification claim covers this compound yet.

Nitrate

Comes from the source

Below EPA’s limits

0.12ppm

Highest sample; found in 2 of 6

2025, one sample: 0.12 ppm

The highest sample, in 2025, was 0.12 ppm, below EPA’s legal limit of 10 ppm. That was also the latest year on file, and its one sample was 0.12 ppm. Earlier, from 2012 to 2019, EPA’s file shows a highest sample of 0.18 ppm, in 2019.

What handles it

  • NSF/ANSI 58 look for “Nitrate/Nitrite Reduction”
  • NSF/ANSI 53 look for “Nitrate/Nitrite (30 ppm challenge)”
2 compounds tested and not foundBelow the reporting level in every sample. Not found is not the same as zero.
  • Chromium (total)
  • Lead

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

    Claim: Arsenic (Pentavalent)<=50 ppb Reduction

    For: Arsenic

    Other certifiers’ wording: Arsenic (III) (50 ppb influent level)

  • NSF/ANSI 58

    Claim: Arsenic (Pentavalent)<=50 ppb Reduction

    For: Arsenic

    Other certifiers’ wording: Arsenic (Pentavalent)<=300 ppb Reduction; Arsenic (V) (300 ppb influent level)

At the tap, or for the whole house?

These come with the water itself, so a whole-house system certified for the same claims treats every tap and shower. A filter at the tap treats drinking water for much less. 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 reverse osmosis systems, ranked

Violations since 2016

Contaminant or ruleTypePeriodMeasuredStatus
TTHMThe running average was above the legal limit.EPA: Maximum Contaminant Level Violation, AverageApril 1, 2018 to June 30, 20180.082 MG/LResolved
Health-based violations only. Resolved and archived mean the utility returned to compliance or the state closed the record. 6 monitoring or reporting violations not shown.

What this report can’t tell you

  • Everything else. Arsenic, total trihalomethanes (TTHM), fluoride, haloacetic acids (HAA5), nitrate and chromium (total) results here are Ohio’s own from 2020 on, with EPA’s national file for 2012 to 2019. Middlefield Mobile Home Park’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 Jan. 15, 2020 to Dec. 5, 2025.

Testing your own tap

Middlefield Mobile Home Park’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 Middlefield Mobile Home Park serves, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.

  • Geauga County Department of Water Resources

    Chardon, OH · about 12 miles

    Certified for bacteria, nitrate, minerals and other inorganics

    (440) 285-2603

  • Biosolutions, LLC

    Chagrin Falls, OH · about 14 miles

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

    (440) 708-2999

  • Portage County Water Resources

    Ravenna, OH · about 22 miles

    Certified for bacteria, nitrate, minerals and other inorganics

    (330) 297-3685

All 76 certified labs for Ohio

Sources

PWSID OH2801912. Rebuilt from EPA data on Oct. 18, 2026.

Towns it serves

Also in Geauga County

All Ohio utilities

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