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Hollis Village Marketplace

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

Serves
36 people
Connections
24
Water source
Groundwater
Based in
Hollis, NH
County
Hillsborough
Owner
Private
The ZIP code it serves

03049

The short answer

2 results are above the health goal. The worst: Arsenic, above the health goal. 6 health-based violations since 2016.

What handles it

What was found

Arsenic, nitrate and total trihalomethanes (TTHM): New Hampshire’s yearly averages per water system, as CDC’s Environmental Public Health Tracking Network publishes them, 2020 to 2023, with EPA’s 2012 to 2019 file for earlier years.

Uranium, chromium (total) and fluoride: EPA’s compliance monitoring file, samples taken from Aug. 12, 2014 to Sept. 6, 2018. Newer results are in the utility’s annual water quality report.

Above the health goal2

Arsenic

Comes from the source

Above the health goal

6.2ppb

Highest yearly average, 2020 to 2023

Averaged by year, the highest was 6.2 ppb, in 2023: below EPA’s legal limit of 10 ppb, but above its health goal of zero. That was also the latest year on file. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 4.7 ppb, in 2017.

What handles it

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

Uranium

Comes from the source

Above the health goal

3.8ppb

Highest yearly average, 2018

Averaged by year, the highest was 3.8 ppb, in 2018: below EPA’s legal limit of 30 ppb, but above its health goal of zero. That is the only year on file.

What handles it

Below EPA’s limits2

Nitrate

Comes from the source

Below EPA’s limits

2.2ppm

Highest yearly average, 2020 to 2023

2023 average: 0.69 ppm

Averaged by year, the highest was 2.2 ppm, in 2020, below EPA’s legal limit of 10 ppm. In 2023, the latest year on file, it averaged 0.69 ppm. Earlier, from 2012 to 2019, EPA’s file shows a highest sample of 3.5 ppm, in 2018.

What handles it

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

Chromium (total)

Comes from the source

Below EPA’s limits

4.1ppb

Highest yearly average, 2014 to 2017

Averaged by year, the highest was 4.1 ppb, in 2017, below EPA’s legal limit of 100 ppb. That was also the latest year on file.

What handles it

2 compounds tested and not foundBelow the reporting level in every sample. Not found is not the same as zero.
  • Fluoride
  • Total trihalomethanes (TTHM)

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

    Claims: Arsenic (Pentavalent)<=50 ppb Reduction, Uranium

    For: Arsenic, Uranium

    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

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The best reverse osmosis systems, ranked

Violations since 2016

Contaminant or ruleTypePeriodMeasuredStatus
Antimony, TotalThe running average was above the legal limit.EPA: Maximum Contaminant Level Violation, AverageJan. 1, 2024 to March 31, 20240.008 MG/LResolved
Antimony, TotalThe running average was above the legal limit.EPA: Maximum Contaminant Level Violation, AverageOct. 1, 2023 to Dec. 31, 20230.0086 MG/LResolved
Antimony, TotalThe running average was above the legal limit.EPA: Maximum Contaminant Level Violation, AverageJuly 1, 2023 to Sept. 30, 20230.007 MG/LResolved
Groundwater RuleA significant problem found in a state inspection was not fixed on time.EPA: Failure To Address DeficiencyApril 16, 2023—Addressed
Revised Total Coliform RuleFixes required after coliform results were not made on time.EPA: Treatment Technique, Corrective/Expedited Actions (RTCR)Jan. 16, 2020—Resolved
Revised Total Coliform RuleFixes required after coliform results were not made on time.EPA: Treatment Technique, Corrective/Expedited Actions (RTCR)Sept. 1, 2016—Resolved
Health-based violations only. Resolved and archived mean the utility returned to compliance or the state closed the record. 3 monitoring or reporting violations not shown.

What this report can’t tell you

  • Everything else. Arsenic, nitrate and total trihalomethanes (TTHM) results here are New Hampshire’s yearly averages as CDC publishes them, from 2020 on, with EPA’s national file for 2012 to 2019. Uranium, chromium (total) and fluoride come from EPA’s file alone, which ends in 2019. Hollis Village Marketplace’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 New Hampshire cover 2020 to 2023; EPA’s compliance samples are from Aug. 12, 2014 to Sept. 6, 2018.

Testing your own tap

Hollis Village Marketplace’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 New Hampshire certifies.

The 3 labs New Hampshire certifies closest to the area Hollis Village Marketplace serves, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.

  • Nelson Analytical LLC

    Manchester, NH · about 18 miles

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

    (603) 622-0200

  • Eurofins Derry

    Derry, NH · about 18 miles

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

    (603) 432-3044

  • Pace Analytical Services LLC - MA

    Woburn, MA · about 28 miles

    Certified for asbestos

    (781) 935-3212

All 63 certified labs for New Hampshire

Sources

PWSID NH1176010. Rebuilt from EPA data on Oct. 18, 2026.

Also in Hillsborough County

All New Hampshire utilities

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