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Grier School

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
450 people
Connections
51
Water source
Groundwater
Based in
Tyrone, PA
County
Huntingdon
Owner
Private

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

PFAS: Pennsylvania’s own results under its PFAS rule, entry point samples taken from Feb. 7, 2024 to Nov. 5, 2024.

Lead and copper: EPA SDWIS monitoring periods ending 1993 to 2025.

Nitrate, total trihalomethanes (TTHM), arsenic, chromium (total), fluoride and haloacetic acids (HAA5): Pennsylvania’s own results, samples taken from May 14, 2020 to June 9, 2026, with EPA’s 2012 to 2019 file for earlier years.

Uranium: EPA’s compliance monitoring file, samples taken from Feb. 22, 2019 to Feb. 22, 2019. Newer results are in the utility’s annual water quality report.

PFAS: PFOS was found, of the six PFAS in EPA’s 2024 drinking water rule; its result is below.

EPA’s 2024 PFAS rule, compound by compound

PFASEPA’s limitResult
PFOA4.0 pptNot foundNot found in any of 8 samples
PFOS4.0 pptAbove the health goal2.4 ppt highest, found in 3 of 8 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 the legal limit1

Lead

Comes from pipes, often your own

Above the action level

22.2ppb

90th percentile, 2025

In the latest period, 9 in 10 homes sampled were at or below 22.2 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

PFOS

Comes from the source

Above the health goal

2.4ppt

Highest sample, Feb. 7, 2024; found in 3 of 8

2024 average: 0.81 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 1.0 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. Its only year on file is 2024, when its eight samples averaged 0.81 ppt.

What handles it

Below EPA’s limits2

Nitrate

Comes from the source

Below EPA’s limits

3.5ppm

Highest sample; found in 14 of 14

2026 average: 2.8 ppm

The highest sample, in 2024, was 3.5 ppm, below EPA’s legal limit of 10 ppm. In 2026, the latest year on file, its two samples averaged 2.8 ppm. Earlier, from 2012 to 2019, EPA’s file shows a highest sample of 3.3 ppm, in 2016.

What handles it

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

Total trihalomethanes (TTHM)

Forms or is added in treatment

Below EPA’s limits

3.5ppb

Highest yearly average, 2021 to 2024

2024, one sample: 2.1 ppb

Averaged by year, the highest was 3.5 ppb, in 2021, below EPA’s legal limit of 80 ppb. In 2024, the latest year on file, its one sample was 2.1 ppb. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 4.5 ppb, in 2018.

What handles it

  • NSF/ANSI 53 look for “Trihalomethanes (TTHM) Reduction”
  • NSF/ANSI 58 look for “Trihalomethanes (TTHM) Reduction”
6 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)
  • Uranium

PFAS, from Pennsylvania’s own monitoring

  • PFOA

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: Lead Reduction, PFOS Reduction

    For: Lead, PFOS

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

  • NSF/ANSI 58

    Claims: Lead Reduction, Perfluorooctane Sulfonate (PFOS)

    For: Lead, PFOS

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

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)March 1, 2025 to March 31, 2025—Resolved
Health-based violations only. Resolved and archived mean the utility returned to compliance or the state closed the record. 64 monitoring or reporting violations not shown.

What this report can’t tell you

  • Everything else. Nitrate, total trihalomethanes (TTHM), arsenic, chromium (total), fluoride and haloacetic acids (HAA5) results here are Pennsylvania’s own from 2020 on, with EPA’s national file for 2012 to 2019. Uranium comes from EPA’s file alone, which ends in 2019. Grier School’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; Pennsylvania’s results run from May 14, 2020 to June 9, 2026; EPA’s compliance samples are from Feb. 22, 2019 to Feb. 22, 2019; Pennsylvania’s PFAS results run from Feb. 7, 2024 to Nov. 5, 2024.

Testing your own tap

Grier School’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.

No lab Pennsylvania certifies is within 75 miles of the area Grier School serves on the state’s list. Some take samples by mail; the state’s page lists them all.

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 PA4310022. Rebuilt from EPA data on Oct. 18, 2026.

Also in Huntingdon County

All Pennsylvania utilities

What to do next