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GRIER SCHOOL

PWS ID: PA4310022 · TYRONE, Pennsylvania 16686

GRIER SCHOOL serves 450 people in TYRONE, Pennsylvania using Groundwater water sources. It has 812 recorded EPA violations, including 4 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: GRIER SCHOOL

GRIER SCHOOL is a private-owned community water system that delivers drinking water to 450 residents in TYRONE, Pennsylvania (Huntingdon County) through 51 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 812 total violations for this system , of which 4 (0%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 773 monitoring and reporting violations are on file. The most recent violation on record dates to 2025.

The most frequently cited contaminant at this system is Public Notice, recorded in 30 violations (Other). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across Pennsylvania, EPA tracks 7,701 public water systems serving 12,630,061 people, with 1,159,868 cumulative violations and 68,517 health-based violations on record. About 97% of systems in the state carry at least one violation, and state-wide the average per system is 150.6 violations. GRIER SCHOOL's 812 violations sit above the Pennsylvania average. Statewide, 224 of 389 UCMR5-tested systems have reported PFAS detections (57.6%). All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served
450
Total Violations
812
Health-Based Violations
4
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
51
County
Huntingdon
School/Daycare
No
MCL Violations
0
Monitoring Violations
773
Treatment Tech Violations
4

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Public Notice Other 30 2025
Gross Alpha, Excl. Radon and U MR 21 2010
Endrin MR 21 2021
Radium-226 MR 20 2010
Radium-228 MR 20 2010
Combined Uranium MR 20 2010
Methoxychlor MR 17 2018
Toxaphene MR 17 2018
Dalapon MR 17 2018
Diquat MR 17 2018
BHC-GAMMA MR 17 2018
Endothall MR 17 2018
Coliform (TCR) MR 15 2012
Di(2-ethylhexyl) adipate MR 15 2018
OXAMYL MR 15 2018
Di(2-ethylhexyl) phthalate MR 15 2018
Dinoseb MR 15 2018
Hexachlorocyclopentadiene MR 15 2018
Carbofuran MR 15 2018
Atrazine MR 15 2018
Heptachlor MR 15 2018
Heptachlor epoxide MR 15 2018
2,4-D MR 15 2018
HEXACHLOROBENZENE MR 15 2018
Benzo(a)pyrene MR 15 2018
Pentachlorophenol MR 15 2018
Chlordane MR 15 2018
Simazine MR 15 2018
Picloram MR 15 2018
LASSO MR 15 2018

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records — or to file a complaint, request a Consumer Confidence Report, or check current monitoring status — go directly to the federal and state regulators that enforce the Safe Drinking Water Act for GRIER SCHOOL.

Federal Source of Truth

EPA SDWIS — Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID PA4310022 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Pennsylvania Drinking Water Authority

Pennsylvania DEP — Bureau of Safe Drinking Water is the primacy agency that licenses and inspects GRIER SCHOOL under EPA-delegated authority.

Open PA regulator portal

Source: Pennsylvania DEP — Bureau of Safe Drinking Water

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2025 Public Notice Other 30 SDWIS / PA4310022 / 7500
2025 Groundwater Rule MR 8 SDWIS / PA4310022 / 0700
2025 Groundwater Rule TT 4 SDWIS / PA4310022 / 0700
2021 Endrin MR 21 SDWIS / PA4310022 / 2005
2020 Nitrate MR 11 SDWIS / PA4310022 / 1040
2020 Nitrite MR 8 SDWIS / PA4310022 / 1041
2018 Methoxychlor MR 17 SDWIS / PA4310022 / 2015
2018 Toxaphene MR 17 SDWIS / PA4310022 / 2020
2018 Dalapon MR 17 SDWIS / PA4310022 / 2031
2018 Diquat MR 17 SDWIS / PA4310022 / 2032
2018 BHC-GAMMA MR 17 SDWIS / PA4310022 / 2010
2018 Endothall MR 17 SDWIS / PA4310022 / 2033
2018 Di(2-ethylhexyl) adipate MR 15 SDWIS / PA4310022 / 2035
2018 OXAMYL MR 15 SDWIS / PA4310022 / 2036
2018 Di(2-ethylhexyl) phthalate MR 15 SDWIS / PA4310022 / 2039

How GRIER SCHOOL Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric GRIER SCHOOL Pennsylvania avg Federal benchmark
Total violations 812 150.6 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 4 8.9 Indicates a contaminant exceeded a federal MCL
PFAS detection None 57.6% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 450 1,640 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 7,701 regulated public water systems in Pennsylvania.

Federal MCL reference — Safe Drinking Water Act thresholds ▼
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is GRIER SCHOOL water safe to drink? ▼
GRIER SCHOOL (PWS ID: PA4310022) has 812 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 450 people using Groundwater sources.
How many people does GRIER SCHOOL serve? ▼
GRIER SCHOOL serves 450 people in TYRONE, Pennsylvania. It is a Private-owned system using Groundwater water sources with 51 service connections.
What type of violations does GRIER SCHOOL have? ▼
GRIER SCHOOL has 812 total violations: 4 health-based violations (MCL exceedances or treatment failures), 773 monitoring/reporting violations, and 4 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in GRIER SCHOOL water? ▼
No PFAS testing data is available for GRIER SCHOOL under the EPA's UCMR5 monitoring program.
What water source does GRIER SCHOOL use? ▼
GRIER SCHOOL uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.

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Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

Read our methodology — how this data is sourced, computed, and verified.

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