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Coopersburg Mun Water Auth

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
2,570 people
Connections
1,015
Water source
Groundwater
Based in
Coopersburg, PA
County
Lehigh
Owner
Local government
The ZIP code it serves

18036

The short answer

5 results are above the health goal. The worst: PFOA, above the health goal. 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. 29, 2024 to April 24, 2026.

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

Arsenic, uranium, total trihalomethanes (TTHM), chromium (total), fluoride, haloacetic acids (HAA5) and nitrate: Pennsylvania’s own results, samples taken from Feb. 5, 2020 to July 15, 2026, with EPA’s 2012 to 2019 file for earlier years.

PFAS: PFOA and PFOS 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 the health goal2.4 ppt highest, found in 5 of 12 samples. Details
PFOS4.0 pptAbove the health goal1.7 ppt highest, found in 3 of 12 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 onlyNot foundNot found in any of 4 samples
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 the health goal5

PFOA

Comes from the source

Above the health goal

2.4ppt

Highest sample, May 15, 2025; found in 5 of 12

2026 average: 0.94 ppt

The highest sample was 2.4 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 0.45 ppt, for the year to Dec. 31, 2024: below Pennsylvania’s limit of 14 ppt and below EPA’s new limit of 4.0 ppt. In 2026, the latest year on file, its two samples averaged 0.94 ppt.

What handles it

PFOS

Comes from the source

Above the health goal

1.7ppt

Highest sample, May 15, 2025; found in 3 of 12

2026: not found

The highest sample was 1.7 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 0.4 ppt, for the year to Dec. 31, 2024: below Pennsylvania’s limit of 18 ppt and below EPA’s new limit of 4.0 ppt. In 2026, the latest year on file, it wasn’t found in any of its two samples.

What handles it

Lead

Comes from pipes, often your own

Above the health goal

5.0ppb

90th percentile, 1996

In the latest period, 9 in 10 homes sampled were at or below 5.0 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

Arsenic

Comes from the source

Above the health goal

1.0ppb

Highest yearly average, 2020 to 2026

2026, one sample: 1.0 ppb

Averaged by year, the highest was 1.0 ppb, in 2023: below EPA’s legal limit of 10 ppb, but above its health goal of zero. In 2026, the latest year on file, its one sample was 1.0 ppb. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 28 ppb, in 2013.

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

1ppb

Highest yearly average, 2023 to 2024

2024: not found

Averaged by year, the highest was 1 ppb, in 2023: below EPA’s legal limit of 30 ppb, but above its health goal of zero. In 2024, the latest year on file, it wasn’t found in its one sample.

What handles it

Below EPA’s limits1

Total trihalomethanes (TTHM)

Forms or is added in treatment

Below EPA’s limits

13ppb

Highest yearly average, 2020 to 2026

2026, one sample: 3.9 ppb

Averaged by year, the highest was 13 ppb, in 2024, below EPA’s legal limit of 80 ppb. In 2026, the latest year on file, its one sample was 3.9 ppb. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 10.6 ppb, in 2017.

What handles it

  • NSF/ANSI 53 look for “Trihalomethanes (TTHM) Reduction”
  • NSF/ANSI 58 look for “Trihalomethanes (TTHM) Reduction”
8 compounds tested and not foundBelow the reporting level in every sample. Not found is not the same as zero.

From routine monitoring

  • Chromium (total)
  • Fluoride
  • Haloacetic acids (HAA5)
  • Nitrate

PFAS, from Pennsylvania’s own monitoring

  • HFPO-DA (GenX)
  • PFBS
  • 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, Arsenic (Pentavalent)<=50 ppb Reduction

    For: PFOA, PFOS, Lead, Arsenic

    Other certifiers’ wording: Total PFAS Reduction; Perfluorooctanoic Acid (PFOA); Perfluorooctane Sulfonate (PFOS); Arsenic (III) (50 ppb influent level)

  • NSF/ANSI 58

    Claims: Perfluorooctanoic Acid (PFOA), Perfluorooctane Sulfonate (PFOS), Lead Reduction, Arsenic (Pentavalent)<=50 ppb Reduction, Uranium

    For: PFOA, PFOS, Lead, Arsenic, Uranium

    Other certifiers’ wording: Arsenic (Pentavalent)<=300 ppb Reduction; Arsenic (V) (300 ppb influent level)

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

The best reverse osmosis systems, ranked

Violations since 2016

No health-based violations on file with EPA since 2016. There are 26 monitoring or reporting violations: a sample missed, late or not reported.

What this report can’t tell you

  • Everything else. Arsenic, uranium, total trihalomethanes (TTHM), chromium (total), fluoride, haloacetic acids (HAA5) and nitrate results here are Pennsylvania’s own from 2020 on, with EPA’s national file for 2012 to 2019. Coopersburg Mun Water Auth’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. 5, 2020 to July 15, 2026; Pennsylvania’s PFAS results run from Feb. 29, 2024 to April 24, 2026.

Testing your own tap

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

  • Analytical Laboratories, Inc

    Telford, PA · about 13 miles

    Certified for bacteria, nitrate

    (215) 723-6466

  • ABE Laboratories LLC

    Bath, PA · about 18 miles

    Certified for bacteria, nitrate, minerals and other inorganics

    (610) 837-7721

  • Eurofins Philadelphia - Wind Gap

    Wind Gap, PA · about 23 miles

    (215) 355-3900

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 PA3390046. Rebuilt from EPA data on Oct. 18, 2026.

Towns it serves

Also in Lehigh County

All Pennsylvania utilities

What to do next