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PEQUENAKONCK ELEMENTARY SCHOOL

PWS ID: NY5907717 · NORTH SALEM, New York 10560

PEQUENAKONCK ELEMENTARY SCHOOL serves 700 people in NORTH SALEM, New York using Groundwater water sources. It has 168 recorded EPA violations, including 0 health-based violations. PFAS "forever chemicals" were detected in UCMR5 testing (8 compounds found).

Water Quality Snapshot: PEQUENAKONCK ELEMENTARY SCHOOL

PEQUENAKONCK ELEMENTARY SCHOOL is a private-owned non-transient non-community water system that delivers drinking water to 700 residents in NORTH SALEM, New York (Westchester County) through 1 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 168 total violations for this system , of which 0 (0%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 118 monitoring and reporting violations are on file. The most recent violation on record dates to 2021.

The most frequently cited contaminant at this system is Endrin, recorded in 4 violations (MR). Under EPA's UCMR5 PFAS monitoring program, 8 PFAS compounds were detected in samples collected from this system, with a maximum reported concentration of 0.1604 ppt. PFAS are persistent synthetic chemicals linked to health effects at very low exposure levels.

Across New York, EPA tracks 8,098 public water systems serving 19,294,951 people, with 552,003 cumulative violations and 26,817 health-based violations on record. About 94% of systems in the state carry at least one violation, and state-wide the average per system is 68.2 violations. PEQUENAKONCK ELEMENTARY SCHOOL's 168 violations sit above the New York average. Statewide, 129 of 332 UCMR5-tested systems have reported PFAS detections (38.9%). All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

PFAS Detected

8 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.

Population Served
700
Total Violations
168
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Private
Connections
1
County
Westchester
School/Daycare
Yes
MCL Violations
0
Monitoring Violations
118
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Endrin MR 4 2021
BHC-GAMMA MR 4 2021
Toxaphene MR 4 2021
Simazine MR 4 2021
Picloram MR 4 2021
Hexachlorocyclopentadiene MR 4 2021
Aldicarb sulfoxide MR 4 2021
Carbofuran MR 4 2021
Atrazine MR 4 2021
Heptachlor MR 4 2021
2,4,5-TP MR 4 2021
HEXACHLOROBENZENE MR 4 2021
2,4-D MR 4 2021
Dalapon MR 4 2021
Pentachlorophenol MR 4 2021
Di(2-ethylhexyl) adipate MR 4 2021
Aldicarb sulfone MR 4 2021
LASSO MR 4 2021
ETHYLENE DIBROMIDE MR 4 2021
Methoxychlor MR 4 2021
Chlordane MR 4 2021
Heptachlor epoxide MR 4 2021
Benzo(a)pyrene MR 4 2021
Dinoseb MR 4 2021
Aldicarb MR 4 2021
OXAMYL MR 4 2021
Total Polychlorinated Biphenyls (PCB) MR 4 2021
Di(2-ethylhexyl) phthalate MR 4 2021
Coliform (TCR) MR 3 2006
Nitrate MR 3 2019

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 8 of 30 samples detected PFAS.

Contaminant Date Result MRL Status
PFPeS 8/26/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFHpS 8/26/2025 <0.003 µg/L 0.003 µg/L Not Detected
lithium 8/26/2025 <9 µg/L 9 µg/L Not Detected
PFHxA 8/26/2025 0.1604 µg/L 0.003 µg/L Detected
PFUnA 8/26/2025 <0.002 µg/L 0.002 µg/L Not Detected
PFTA 8/26/2025 <0.008 µg/L 0.008 µg/L Not Detected
PFTrDA 8/26/2025 <0.007 µg/L 0.007 µg/L Not Detected
NEtFOSAA 8/26/2025 <0.005 µg/L 0.005 µg/L Not Detected
NMeFOSAA 8/26/2025 <0.006 µg/L 0.006 µg/L Not Detected
PFHxS 8/26/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 8/26/2025 0.0264 µg/L 0.004 µg/L Detected
PFOS 8/26/2025 0.0100 µg/L 0.004 µg/L Detected
PFOA 8/26/2025 0.1115 µg/L 0.004 µg/L Detected
PFDA 8/26/2025 0.0038 µg/L 0.003 µg/L Detected
PFBS 8/26/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 8/26/2025 0.0482 µg/L 0.003 µg/L Detected
11Cl-PF3OUdS 8/26/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFDoA 8/26/2025 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 8/26/2025 <0.002 µg/L 0.002 µg/L Not Detected
ADONA 8/26/2025 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 8/26/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 8/26/2025 0.0497 µg/L 0.005 µg/L Detected
6:2 FTS 8/26/2025 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 8/26/2025 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 8/26/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFMPA 8/26/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFPeA 8/26/2025 0.1344 µg/L 0.003 µg/L Detected
PFMBA 8/26/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 8/26/2025 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 8/26/2025 <0.02 µg/L 0.02 µg/L Not Detected

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 PEQUENAKONCK ELEMENTARY 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 NY5907717 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

New York Drinking Water Authority

New York State Department of Health — Public Water Systems is the primacy agency that licenses and inspects PEQUENAKONCK ELEMENTARY SCHOOL under EPA-delegated authority.

Open NY regulator portal

Source: New York State Department of Health — Public Water Systems

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
2021 Endrin MR 4 SDWIS / NY5907717 / 2005
2021 BHC-GAMMA MR 4 SDWIS / NY5907717 / 2010
2021 Toxaphene MR 4 SDWIS / NY5907717 / 2020
2021 Simazine MR 4 SDWIS / NY5907717 / 2037
2021 Picloram MR 4 SDWIS / NY5907717 / 2040
2021 Hexachlorocyclopentadiene MR 4 SDWIS / NY5907717 / 2042
2021 Aldicarb sulfoxide MR 4 SDWIS / NY5907717 / 2043
2021 Carbofuran MR 4 SDWIS / NY5907717 / 2046
2021 Atrazine MR 4 SDWIS / NY5907717 / 2050
2021 Heptachlor MR 4 SDWIS / NY5907717 / 2065
2021 2,4,5-TP MR 4 SDWIS / NY5907717 / 2110
2021 HEXACHLOROBENZENE MR 4 SDWIS / NY5907717 / 2274
2021 2,4-D MR 4 SDWIS / NY5907717 / 2105
2021 Dalapon MR 4 SDWIS / NY5907717 / 2031
2021 Pentachlorophenol MR 4 SDWIS / NY5907717 / 2326

How PEQUENAKONCK ELEMENTARY SCHOOL Compares

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

Metric PEQUENAKONCK ELEMENTARY SCHOOL New York avg Federal benchmark
Total violations 168 68.2 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 0 3.3 Indicates a contaminant exceeded a federal MCL
PFAS detection 8 compounds 38.9% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 700 2,383 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 8,098 regulated public water systems in New York.

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 PEQUENAKONCK ELEMENTARY SCHOOL water safe to drink?
PEQUENAKONCK ELEMENTARY SCHOOL (PWS ID: NY5907717) has 168 recorded violations in the EPA SDWIS database. PFAS contamination has been detected in UCMR5 testing, with 8 PFAS compounds found. This system serves 700 people using Groundwater sources.
How many people does PEQUENAKONCK ELEMENTARY SCHOOL serve?
PEQUENAKONCK ELEMENTARY SCHOOL serves 700 people in NORTH SALEM, New York. It is a Private-owned system using Groundwater water sources with 1 service connections.
What type of violations does PEQUENAKONCK ELEMENTARY SCHOOL have?
PEQUENAKONCK ELEMENTARY SCHOOL has 168 total violations: 0 health-based violations (MCL exceedances or treatment failures), 118 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in PEQUENAKONCK ELEMENTARY SCHOOL water?
Yes. UCMR5 testing detected 8 PFAS compounds in PEQUENAKONCK ELEMENTARY SCHOOL's water supply: PFHxA, PFNA, PFOS, PFOA, PFDA, and others. PFAS are persistent "forever chemicals" that do not break down in the environment.
What water source does PEQUENAKONCK ELEMENTARY SCHOOL use?
PEQUENAKONCK ELEMENTARY SCHOOL uses Groundwater as its primary water source. It is classified as a Non-Transient Non-Community Water System, serving the same people for at least 6 months per year.
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.

Explore PlainWater

Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. PFAS data from EPA UCMR5 monitoring program (2023-2025). This data is provided for informational purposes only.

Related

Data sourced from $official public datasets. See our methodology for details. Retrieved and formatted by PlainWater Editorial