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Erinbrook

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
85 people
Connections
37
Water source
Groundwater
Based in
Amissville, VA
County
Culpeper
Owner
Private
The ZIP code it serves

20106

The short answer

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

What handles it

What was found

Lead and copper: copper at 778 mg/L (2012) is left out of this report: more than 20 times the action level, it looks like µg/L entered as mg/L.

Copper: EPA’s file records a utility’s copper only when it exceeds the action level. The last here was 1.8 ppm, for the period ending June 30, 2009. None since is on file, so it is not counted as a current finding.

Arsenic: Virginia’s yearly averages per water system, as CDC’s Environmental Public Health Tracking Network publishes them, 2021 to 2023.

Uranium, total trihalomethanes (TTHM), haloacetic acids (HAA5), chromium (total), fluoride and nitrate: EPA’s compliance monitoring file, samples taken from April 22, 2012 to July 24, 2019. Newer results are in the utility’s annual water quality report.

Above the health goal1

Uranium

Comes from the source

Above the health goal

0.15ppb

Highest yearly average, 2019

Averaged by year, the highest was 0.15 ppb, in 2019: below EPA’s legal limit of 30 ppb, but above its health goal of zero. Its highest single sample was 0.3 ppb. That is the only year on file.

What handles it

Below EPA’s limits2

Total trihalomethanes (TTHM)

Forms or is added in treatment

Below EPA’s limits

24ppb

Highest yearly average, 2013 to 2019

Averaged by year, the highest was 24 ppb, in 2019, below EPA’s legal limit of 80 ppb. That was also the latest year on file.

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

18ppb

Highest yearly average, 2013 to 2019

Averaged by year, the highest was 18 ppb, in 2019, below EPA’s legal limit of 60 ppb. That was also the latest year on file.

What handles it

No certification claim covers this compound yet.

5 compounds tested and not foundBelow the reporting level in every sample. Not found is not the same as zero.
  • Arsenic
  • Chromium (total)
  • Fluoride
  • Lead
  • Nitrate

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?

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

None of the filters TapBuff has checked so far carry these claims. Search the certifier listings for the claim above.

Compare five-year costs

Violations since 2016

Contaminant or ruleTypePeriodMeasuredStatus
Combined Radium (-226 and -228)The running average was above the legal limit.EPA: Maximum Contaminant Level Violation, AverageJan. 1, 2019 to Dec. 31, 20195.7 PCI/LResolved
Health-based violations only. Resolved and archived mean the utility returned to compliance or the state closed the record.

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, total trihalomethanes (TTHM), haloacetic acids (HAA5), chromium (total), fluoride and nitrate come from EPA’s file alone, which ends in 2019. Erinbrook’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 to 2023; EPA’s compliance samples are from April 22, 2012 to July 24, 2019.

Testing your own tap

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

  • VDACS RAHL Warrenton

    Warrenton, VA · about 8 miles

    Certified for bacteria

  • Joiner Labs, LLC dba Joiner Micro Labs

    Warrenton, VA · about 8 miles

    Certified for bacteria

  • Environmental Systems Service, LTD.- Culpeper

    Culpeper, VA · about 18 miles

    Certified for bacteria, nitrate, minerals and other inorganics

    (540) 825-6660

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 VA6047075. Rebuilt from EPA data on Oct. 18, 2026.

Nearby

All Virginia utilities

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