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Tavenner Park

What EPA’s and CDC’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
228 people
Connections
75
Water source
Groundwater
Based in
Winchester, VA
County
Frederick
Owner
Private
The ZIP code it serves

22603

The short answer

1 result is above EPA’s legal limit, and 1 more is above the health goal. The worst: Nitrate, above the legal limit. 1 health-based violation since 2016.

What handles it

What was found

Arsenic: Virginia’s yearly averages per water system, as CDC’s Environmental Public Health Tracking Network publishes them, 2021.

Nitrate: EPA’s violation records from 2020 on, with EPA’s 2012 to 2019 file for earlier years.

Uranium, fluoride, chromium (total), total trihalomethanes (TTHM) and haloacetic acids (HAA5): EPA’s compliance monitoring file, samples taken from July 2, 2012 to Aug. 23, 2019. Newer results are in the utility’s annual water quality report.

Above the legal limit1

Nitrate

Comes from the source

Above the legal limit

11ppm

Limit violation, 2026

EPA recorded a violation of the legal limit for nitrate at this utility in 2026. The highest measured level, for Jan. 1, 2026 to Dec. 31, 2026, was 11 ppm, above EPA’s legal limit of 10 ppm. Earlier, from 2012 to 2019, EPA’s file shows a highest sample of 8.3 ppm, in 2016.

What handles it

  • NSF/ANSI 58 look for “Nitrate/Nitrite Reduction”
  • NSF/ANSI 53 look for “Nitrate/Nitrite (30 ppm challenge)”

Above the health goal1

Uranium

Comes from the source

Above the health goal

0.42ppb

Highest yearly average, 2016

Averaged by year, the highest was 0.42 ppb, in 2016: below EPA’s legal limit of 30 ppb, but above its health goal of zero. Its highest single sample was 0.49 ppb. That is the only year on file.

What handles it

Below EPA’s limits3

Fluoride

Forms or is added in treatment

Below EPA’s limits

0.36ppm

Highest yearly average, 2012 to 2018

Averaged by year, the highest was 0.36 ppm, in 2018, below EPA’s legal limit of 4.0 ppm. Its highest single sample was 0.52 ppm. That was also the latest year on file.

What handles it

Chromium (total)

Comes from the source

Below EPA’s limits

4.0ppb

Highest yearly average, 2012 to 2018

2018: not found

Averaged by year, the highest was 4.0 ppb, in 2015, below EPA’s legal limit of 100 ppb. Its highest single sample was 4.1 ppb. In 2018, the latest year on file, it wasn’t found in its one sample.

What handles it

Total trihalomethanes (TTHM)

Forms or is added in treatment

Below EPA’s limits

2.6ppb

Highest yearly average, 2013 to 2019

2019, one sample: 1.9 ppb

Averaged by year, the highest was 2.6 ppb, in 2015, below EPA’s legal limit of 80 ppb. In 2019, the latest year on file, its one sample was 1.9 ppb.

What handles it

  • NSF/ANSI 53 look for “Trihalomethanes (TTHM) Reduction”
  • NSF/ANSI 58 look for “Trihalomethanes (TTHM) Reduction”
3 compounds tested and not foundBelow the reporting level in every sample. Not found is not the same as zero.
  • Arsenic
  • Haloacetic acids (HAA5)
  • 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: Nitrate/Nitrite (30 ppm challenge)

    For: Nitrate

  • NSF/ANSI 58

    Claims: Nitrate/Nitrite Reduction, Uranium

    For: Nitrate, Uranium

    Other certifiers’ wording: Nitrate

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
Nitrate-NitriteA sample was above the legal limit, for a contaminant judged one sample at a time.EPA: Maximum Contaminant Level Violation, Single SampleJan. 1, 2026 to Dec. 31, 202611 MG/LUnaddressed
Health-based violations only. Resolved and archived mean the utility returned to compliance or the state closed the record. 11 monitoring or reporting violations not shown.

What this report can’t tell you

  • Everything else. Arsenic results here are Virginia’s yearly averages as CDC publishes them, from 2021 on, with EPA’s national file for 2012 to 2019. Uranium, fluoride, chromium (total), total trihalomethanes (TTHM) and haloacetic acids (HAA5) come from EPA’s file alone, which ends in 2019. Tavenner Park’s own annual report, which it must send you every year, has newer results for those and 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; CDC’s yearly averages for Virginia cover 2021; EPA’s compliance samples are from July 2, 2012 to Aug. 23, 2019.

Testing your own tap

Tavenner 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 Virginia certifies.

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

  • Shenandoah Bacteriological Laboratory

    Cross Junction, VA · about 9 miles

    Certified for bacteria

    (540) 888-4500

  • Fredericktowne Labs

    Myersville, MD · about 40 miles

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

    (301) 293-3340

  • Loudoun Water Laboratory

    Ashburn, VA · about 42 miles

    Certified for bacteria, nitrate

    (571) 291-7844

Virginia Household Water Quality Program, Virginia Cooperative Extension: Drinking water clinics in about 70 counties a year, run through local Extension offices: pick up a kit, collect the sample on the set day, and drop it off locally. Each kit tests well, spring or cistern water for 28 things, including bacteria, nitrate, lead and arsenic. $70 a kit, with funding to help if you need it. Virginia Household Water Quality Program.

All 145 certified labs for Virginia

Sources

PWSID VA2069725. Rebuilt from EPA data on Oct. 18, 2026.

Also in Frederick County

All Virginia utilities

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