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Chestnut Ridge MHP

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

Serves
152 people
Connections
75
Water source
Groundwater
Based in
Lehighton, PA
County
Carbon
Owner
Private
The ZIP code it serves

18058

The short answer

1 result is above EPA’s new limit, which takes effect in 2029, and 2 more are above the health goal. The worst: PFOA, above EPA’s new limit (2029). No health-based violations on file since 2016.

What handles it

What was found

PFAS: Pennsylvania’s own results under its PFAS rule, entry point samples taken from Feb. 28, 2025 to Dec. 11, 2025.

Lead and copper: EPA SDWIS monitoring periods ending 1993 to 1996.

Nitrate, arsenic, chromium (total), fluoride, haloacetic acids (HAA5), total trihalomethanes (TTHM) and uranium: Pennsylvania’s own results, samples taken from Feb. 27, 2020 to May 13, 2026, with EPA’s 2012 to 2019 file for earlier years.

PFAS: PFOA, PFOS and PFBS were found, of the six PFAS in EPA’s 2024 drinking water rule; their results are below.

EPA’s 2024 PFAS rule, compound by compound

PFASEPA’s limitResult
PFOA4.0 pptAbove EPA’s new limit (2029)4.2 ppt highest, found in 4 of 4 samples. Details
PFOS4.0 pptAbove the health goal2.2 ppt highest, found in 3 of 4 samples. Details
PFHxS10 pptNot foundNot found in any of 4 samples
PFNA10 pptNot foundNot found in any of 4 samples
HFPO-DA (GenX)10 pptNot foundNot found in any of 4 samples
PFBSIndex onlyBelow EPA’s limits24 ppt highest, found in 4 of 4 samples. Details
Results from Pennsylvania’s own PFAS monitoring, samples where water enters the pipes; each compound’s card has its four-quarter averages, the way limits are judged. The limits are EPA’s 2024 rule, with compliance due from 2029; EPA has since proposed changes to some of them, explained on each compound’s page. Pennsylvania’s own limits for PFOA and PFOS are in force now. PFBS has no limit of its own and counts only toward EPA’s Hazard Index, which TapBuff works out only from UCMR 5’s averages, so it isn’t given here.

About PFAS certifications

NSF’s PFAS claims are tested to below 20 ppt. EPA’s limit is 4.0 ppt, and EPA says no certification yet shows a filter reaching its levels.

Above EPA’s new limit, which takes effect in 20291

PFOA

Comes from the source

Above EPA’s new limit (2029)

4.2ppt

Highest sample, Dec. 11, 2025; found in 4 of 4

2025 average: 3.7 ppt

The highest sample was 4.2 ppt, above EPA’s new limit of 4.0 ppt, which takes effect in 2029. EPA’s health goal is zero. Compliance will be judged on a running annual average, not one sample. Averaged over four quarters at one entry point, the way both Pennsylvania’s limit and EPA’s are judged, the highest was 3.7 ppt, for the year to Dec. 31, 2025: below Pennsylvania’s limit of 14 ppt and below EPA’s new limit of 4.0 ppt. Its only year on file is 2025, when its four samples averaged 3.7 ppt.

What handles it

Above the health goal2

PFOS

Comes from the source

Above the health goal

2.2ppt

Highest sample, June 23, 2025; found in 3 of 4

2025 average: 1.5 ppt

The highest sample was 2.2 ppt: below EPA’s new limit of 4.0 ppt, which takes effect in 2029, but above its health goal of zero. Averaged over four quarters at one entry point, the way both Pennsylvania’s limit and EPA’s are judged, the highest was 1.5 ppt, for the year to Dec. 31, 2025: below Pennsylvania’s limit of 18 ppt and below EPA’s new limit of 4.0 ppt. Its only year on file is 2025, when its four samples averaged 1.5 ppt.

What handles it

Lead

Comes from pipes, often your own

Above the health goal

3.0ppb

90th percentile, 1996

In the latest period, 9 in 10 homes sampled were at or below 3.0 ppb, below EPA’s action level of 15 ppb. The action level drops to 10 ppb on Nov. 1, 2027. EPA’s health goal for lead is zero.

What handles it

Below EPA’s limits2

Nitrate

Comes from the source

Below EPA’s limits

4.2ppm

Highest sample; found in 8 of 8

2026, one sample: 3.9 ppm

The highest sample, in 2022, was 4.2 ppm, below EPA’s legal limit of 10 ppm. In 2026, the latest year on file, its one sample was 3.9 ppm. Earlier, from 2012 to 2019, EPA’s file shows a highest sample of 3.5 ppm, in 2012.

What handles it

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

PFBS

Comes from the source

Below EPA’s limits

24ppt

Highest sample, Sept. 10, 2025; found in 4 of 4

2025 average: 20 ppt

The highest sample was 24 ppt, below EPA’s hazard index benchmark of 2,000 ppt. PFBS has no legal limit or health goal of its own. Its only year on file is 2025, when its four samples averaged 20 ppt.

What handles it

9 compounds tested and not foundBelow the reporting level in every sample. Not found is not the same as zero.

From routine monitoring

  • Arsenic
  • Chromium (total)
  • Fluoride
  • Haloacetic acids (HAA5)
  • Total trihalomethanes (TTHM)
  • Uranium

PFAS, from Pennsylvania’s own monitoring

  • HFPO-DA (GenX)
  • PFHxS
  • PFNA

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

    Claims: PFOA Reduction, PFOS Reduction, Lead Reduction

    For: PFOA, PFOS, Lead

    Other certifiers’ wording: Total PFAS Reduction; Perfluorooctanoic Acid (PFOA); Perfluorooctane Sulfonate (PFOS)

  • NSF/ANSI 58

    Claims: Perfluorooctanoic Acid (PFOA), Perfluorooctane Sulfonate (PFOS), Lead Reduction

    For: PFOA, PFOS, 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 PFAS, ranked

The best water filters for lead, ranked

Violations since 2016

No health-based violations on file with EPA since 2016. There are 61 monitoring or reporting violations: a sample missed, late or not reported.

What this report can’t tell you

  • Everything else. Nitrate, arsenic, chromium (total), fluoride, haloacetic acids (HAA5), total trihalomethanes (TTHM) and uranium results here are Pennsylvania’s own from 2020 on, with EPA’s national file for 2012 to 2019. Chestnut Ridge MHP’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; Pennsylvania’s results run from Feb. 27, 2020 to May 13, 2026; Pennsylvania’s PFAS results run from Feb. 28, 2025 to Dec. 11, 2025.

Testing your own tap

Chestnut Ridge MHP’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 Pennsylvania certifies.

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

  • ABE Laboratories LLC

    Bath, PA · about 10 miles

    Certified for bacteria, nitrate, minerals and other inorganics

    (610) 837-7721

  • Eurofins Philadelphia - Wind Gap

    Wind Gap, PA · about 10 miles

    (215) 355-3900

  • HawkMtn Labs Inc

    Hazle Township, PA · about 29 miles

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

    (570) 455-6011

Penn State Agricultural Analytical Services Laboratory: Drinking water test kits from many county Extension offices, mailed back to the lab overnight with payment. Packages cover bacteria and basic chemistry, with add-ons for nitrate, metals, lead, and mining or gas drilling concerns. The standard package of bacteria, pH and total dissolved solids is $60, or $70 with nitrate; bacteria alone is $40, nitrate $15 and lead $25. Drinking Water Testing, Penn State Agricultural Analytical Services Lab.

All 108 certified labs for Pennsylvania

Sources

PWSID PA3130011. Rebuilt from EPA data on Oct. 18, 2026.

Also in Carbon County

All Pennsylvania utilities

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