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Shadow Lake Mobile Home 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
58 people
Connections
23
Water source
Groundwater
Based in
Salem, NH
County
Rockingham
Owner
Private
The ZIP code it serves

03079

The short answer

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

What handles it

What was found

Lead and copper: EPA SDWIS monitoring periods ending 2024.

Uranium, 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.

Chromium (total) and fluoride: EPA’s compliance monitoring file, samples taken from June 12, 2016 to June 11, 2019. Newer results are in the utility’s annual water quality report.

Above the legal limit1

Lead

Comes from pipes, often your own

Above the action level

16ppb

90th percentile, 2022 to 2024

In the latest period, 9 in 10 homes sampled were at or below 16 ppb, above EPA’s action level of 15 ppb. The action level drops to 10 ppb on Nov. 1, 2027, and this result is at or above that. EPA’s health goal for lead is zero.

What handles it

Above the health goal1

Uranium

Comes from the source

Above the health goal

6.4ppb

Highest yearly average, 2020 to 2023

2023 average: 2.6 ppb

Averaged by year, the highest was 6.4 ppb, in 2021: below EPA’s legal limit of 30 ppb, but above its health goal of zero. In 2023, the latest year on file, it averaged 2.6 ppb. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 8.3 ppb, in 2015.

What handles it

Below EPA’s limits1

Chromium (total)

Comes from the source

Below EPA’s limits

10ppb

Highest yearly average, 2016 to 2019

2019: not found

Averaged by year, the highest was 10 ppb, in 2016, below EPA’s legal limit of 100 ppb. In 2019, the latest year on file, it wasn’t found in its one sample.

What handles it

4 compounds tested and not foundBelow the reporting level in every sample. Not found is not the same as zero.
  • Arsenic
  • Fluoride
  • Nitrate
  • 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.”

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
Revised Total Coliform RuleColiform or E. coli results required a detailed review of the system, and it or its fixes were not done on time.EPA: Treatment Technique, Level 2 Assessment (RTCR)Nov. 25, 2023—Resolved
Health-based violations only. Resolved and archived mean the utility returned to compliance or the state closed the record. 9 monitoring or reporting violations not shown.

What this report can’t tell you

  • Everything else. Uranium, 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. Chromium (total) and fluoride come from EPA’s file alone, which ends in 2019. Shadow Lake Mobile Home 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 New Hampshire cover 2020 to 2023; EPA’s compliance samples are from June 12, 2016 to June 11, 2019.

Testing your own tap

Shadow Lake 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 New Hampshire certifies.

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

  • Eurofins Derry

    Derry, NH · about 8 miles

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

    (603) 432-3044

  • Nelson Analytical LLC

    Manchester, NH · about 15 miles

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

    (603) 622-0200

  • Pace Analytical Services LLC - MA

    Woburn, MA · about 21 miles

    Certified for asbestos

    (781) 935-3212

All 63 certified labs for New Hampshire

Sources

PWSID NH2053030. Rebuilt from EPA data on Oct. 18, 2026.

Also in Rockingham County

All New Hampshire utilities

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