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Wec International

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

Serves
25 people
Connections
10
Water source
Groundwater
Based in
Fort Washington, PA
County
Montgomery
Owner
Public and private
The ZIP code it serves

19034

The short answer

1 result is above the limit’s level with no violation recorded, 2 more are above EPA’s new limit, which takes effect in 2029, and 1 more is above the health goal. The worst: Total trihalomethanes (TTHM), above the limit’s level, no violation. 3 health-based violations since 2016.

What handles it

What was found

PFAS: Pennsylvania’s own results under its PFAS rule, entry point samples taken from Nov. 1, 2023 to Aug. 13, 2026.

Total trihalomethanes (TTHM), uranium, nitrate, haloacetic acids (HAA5), arsenic, chromium (total) and fluoride: Pennsylvania’s own results, samples taken from Aug. 5, 2020 to July 30, 2026, with EPA’s 2012 to 2019 file for earlier years.

PFAS: PFOS, PFOA and PFHxS were found, of the six PFAS in EPA’s 2024 drinking water rule; their results are below. Two other PFAS with no federal limit were found, the highest PFHxA at 4.2 ppt: see them below.

EPA’s 2024 PFAS rule, compound by compound

PFASEPA’s limitResult
PFOA4.0 pptAbove EPA’s new limit (2029)13.5 ppt highest, found in 8 of 8 samples. Details
PFOS4.0 pptAbove EPA’s new limit (2029)22.5 ppt highest, found in 8 of 8 samples. Details
PFHxS10 pptBelow EPA’s limits3.1 ppt highest, found in 1 of 1 samples. Details
PFNA10 pptNot foundNot found in its one sample
HFPO-DA (GenX)10 pptNot foundNot found in its one sample
PFBSIndex onlyNot foundNot found in its one sample
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 limit’s level, no violation recorded1

Total trihalomethanes (TTHM)

Forms or is added in treatment

Above the limit’s level, no violation

80.8ppb

Highest yearly average, 2021 to 2026

2026 average: 3.4 ppb

Averaged by year, the highest was 80.8 ppb, in 2024, above EPA’s legal limit of 80 ppb. In 2026, the latest year on file, its three samples averaged 3.4 ppb. EPA judges this limit on running averages at each sampling point, and recorded no violation for total trihalomethanes (TTHM) at this utility since 2020. Results like these with no violation often include water sampled before treatment or blending; the utility’s annual report says what reaches the tap. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 6.2 ppb, in 2018.

What handles it

  • NSF/ANSI 53 look for “Trihalomethanes (TTHM) Reduction”
  • NSF/ANSI 58 look for “Trihalomethanes (TTHM) Reduction”

Above EPA’s new limit, which takes effect in 20292

PFOS

Comes from the source

Above EPA’s new limit (2029)

22.5ppt

Highest sample, April 23, 2025; found in 8 of 8

2026 average: 16.5 ppt

The highest sample was 22.5 ppt, about 5.6 times 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 16.7 ppt, for the year to Dec. 31, 2025: below Pennsylvania’s limit of 18 ppt and above EPA’s new limit of 4.0 ppt. In 2026, the latest year on file, its three samples averaged 16.5 ppt.

What handles it

PFOA

Comes from the source

Above EPA’s new limit (2029)

13.5ppt

Highest sample, April 23, 2025; found in 8 of 8

2026 average: 11.3 ppt

The highest sample was 13.5 ppt, about 3.4 times 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 10.9 ppt, for the year to Dec. 31, 2025: below Pennsylvania’s limit of 14 ppt and above EPA’s new limit of 4.0 ppt. In 2026, the latest year on file, its three samples averaged 11.3 ppt.

What handles it

Above the health goal1

Uranium

Comes from the source

Above the health goal

2.0ppb

Highest yearly average, 2025

Averaged by year, the highest was 2.0 ppb, in 2025: below EPA’s legal limit of 30 ppb, but above its health goal of zero. Its highest single sample was 2.1 ppb. That is the only year on file. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 1.7 ppb, in 2018.

What handles it

Below EPA’s limits3

Nitrate

Comes from the source

Below EPA’s limits

4.0ppm

Highest sample; found in 6 of 6

2025, one sample: 1.7 ppm

The highest sample, in 2020, was 4.0 ppm, below EPA’s legal limit of 10 ppm. In 2025, the latest year on file, its one sample was 1.7 ppm. Earlier, from 2012 to 2019, EPA’s file shows a highest sample of 3.0 ppm, in 2018.

What handles it

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

Haloacetic acids (HAA5)

Forms or is added in treatment

Below EPA’s limits

20.1ppb

Highest yearly average, 2021 to 2026

2026: not found

Averaged by year, the highest was 20.1 ppb, in 2024, below EPA’s legal limit of 60 ppb. In 2026, the latest year on file, it wasn’t found in any of its three samples.

What handles it

No certification claim covers this compound yet.

PFHxS

Comes from the source

Below EPA’s limits

3.1ppt

One sample, Nov. 1, 2023

2023, one sample: 3.1 ppt

The sample was 3.1 ppt, below EPA’s new limit of 10 ppt, which takes effect in 2029. No entry point has four quarters of results in a row to average, the way EPA’s limit is judged. Its only year on file is 2023, when its one sample was 3.1 ppt.

What handles it

Also found, with no federal limit

EPA measured these PFAS to learn how often they occur. None has a legal limit or a health goal yet.

CompoundHighest sampleFound inCertification claim
PFHxA4.2 ppt1 of 1None covers it
PFHpA3.2 ppt1 of 1NSF/ANSI 53: Total PFAS Reduction
16 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

PFAS, from Pennsylvania’s own monitoring

  • 11Cl-PF3OUdS
  • 9Cl-PF3ONS
  • ADONA
  • HFPO-DA (GenX)
  • NEtFOSAA
  • NMeFOSAA
  • PFBS
  • PFDA
  • PFDoA
  • PFNA
  • PFTA
  • PFTrDA
  • PFUnA

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: Trihalomethanes (TTHM) Reduction, PFOS Reduction, PFOA Reduction

    For: Total trihalomethanes (TTHM), PFOS, PFOA

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

  • NSF/ANSI 58

    Claims: Trihalomethanes (TTHM) Reduction, Perfluorooctane Sulfonate (PFOS), Perfluorooctanoic Acid (PFOA), Uranium

    For: Total trihalomethanes (TTHM), PFOS, PFOA, Uranium

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

Compare five-year costs

The best water filters for PFAS, ranked

Violations since 2016

Contaminant or ruleTypePeriodMeasuredStatus
Groundwater RuleRequired treatment for surface water or groundwater was not met.EPA: Treatment Technique (SWTR and GWR)Sept. 1, 2021 to Sept. 30, 2021—Resolved
Groundwater RuleRequired treatment for surface water or groundwater was not met.EPA: Treatment Technique (SWTR and GWR)July 1, 2021 to July 31, 2021—Resolved
Groundwater RuleRequired treatment for surface water or groundwater was not met.EPA: Treatment Technique (SWTR and GWR)Feb. 1, 2021 to Feb. 28, 2021—Resolved
Health-based violations only. Resolved and archived mean the utility returned to compliance or the state closed the record. 87 monitoring or reporting violations not shown.

What this report can’t tell you

  • Everything else. Total trihalomethanes (TTHM), uranium, nitrate, haloacetic acids (HAA5), arsenic, chromium (total) and fluoride results here are Pennsylvania’s own from 2020 on, with EPA’s national file for 2012 to 2019. Wec International’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 Aug. 5, 2020 to July 30, 2026; Pennsylvania’s PFAS results run from Nov. 1, 2023 to Aug. 13, 2026.

Testing your own tap

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

  • Eurofins Philadelphia - Horsham

    Horsham, PA · about 5 miles

    Certified for bacteria

    (215) 355-3900

  • Aqua Pennsylvania, Inc.

    Bryn Mawr, PA · about 10 miles

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

    (610) 525-1400

  • Criterion Laboratories Inc

    Bensalem, PA · about 14 miles

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

    (215) 244-1300

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 PA1460012. Rebuilt from EPA data on Oct. 18, 2026.

Towns it serves

Nearby

All Pennsylvania utilities

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