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Non-Transient Non-Community Water System · PWS NY1319317

Arlington High School

Lagrangeville, New York 12540 - drinking water served from groundwater sources to 3,050 people, tracked in EPA SDWIS and UCMR5.

3,050
People served
80
EPA violations
6
Health-based
No PFAS
UCMR5 result

The verdict

EPA records 80 drinking-water violations at Arlington High School, 8% of them health-based - above the New York per-system average.

80
Total EPA violations on record
8%
Health-based (MCL / treatment failure)
3,050
People served by this system
0
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Arlington High School

Arlington High School is a local-owned non-transient non-community water system that delivers drinking water to 3,050 residents in Lagrangeville, New York (Dutchess County) through 1 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 80 total violations for this system , of which 6 (8%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 66 monitoring and reporting violations are on file. The most recent violation on record dates to 2022.

The most frequently cited contaminant at this system is Lead and Copper Rule, recorded in 6 violations (TT, health-based). This system was sampled under EPA's UCMR5 PFAS monitoring program and no PFAS compounds were detected above the minimum reporting level.

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. Statewide, 129 of 332 UCMR5-tested systems have reported PFAS detections (38.9%).

Arlington High School's 80 violations sit above the New York average.

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
3,050
Total Violations
80
Health-Based Violations
6
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Local
Connections
1
County
Dutchess
School/Daycare
Yes
MCL Violations
0
Monitoring Violations
66
Treatment Tech Violations
6

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Lead and Copper Rule TT 6 2022
Lead and Copper Rule MR 6 2007
Endrin MR 2 2007
Toxaphene MR 2 2007
Di(2-ethylhexyl) adipate MR 2 2007
Simazine MR 2 2007
Di(2-ethylhexyl) phthalate MR 2 2007
Picloram MR 2 2007
Dinoseb MR 2 2007
Aldicarb sulfoxide MR 2 2007
Aldicarb sulfone MR 2 2007
Aldicarb MR 2 2007
Atrazine MR 2 2007
LASSO MR 2 2007
2,4-D MR 2 2007
Benzo(a)pyrene MR 2 2007
Pentachlorophenol MR 2 2007
Chlordane MR 2 2007
Coliform (TCR) MR 2 2008
Methoxychlor MR 2 2007
Heptachlor epoxide MR 2 2007
Nitrate MR 2 2007
Hexachlorocyclopentadiene MR 2 2007
2,4,5-TP MR 2 2007
ETHYLENE DIBROMIDE MR 2 2007
Carbofuran MR 2 2007
OXAMYL MR 2 2007
Total Polychlorinated Biphenyls (PCB) MR 2 2007
Heptachlor MR 2 2007
HEXACHLOROBENZENE MR 2 2007

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 0 of 58 samples detected PFAS.

Contaminant Date Result MRL Status
NFDHA 8/15/2023 <20.00 ppt 20.00 ppt Not Detected
PFPeA 8/15/2023 <3.00 ppt 3.00 ppt Not Detected
PFHpS 8/15/2023 <3.00 ppt 3.00 ppt Not Detected
NMeFOSAA 8/15/2023 <6.00 ppt 6.00 ppt Not Detected
PFEESA 8/15/2023 <3.00 ppt 3.00 ppt Not Detected
PFPeS 8/15/2023 <4.00 ppt 4.00 ppt Not Detected
PFNA 8/15/2023 <4.00 ppt 4.00 ppt Not Detected
PFUnA 8/15/2023 <2.00 ppt 2.00 ppt Not Detected
11Cl-PF3OUdS 8/15/2023 <5.00 ppt 5.00 ppt Not Detected
9Cl-PF3ONS 8/15/2023 <2.00 ppt 2.00 ppt Not Detected
ADONA 8/15/2023 <3.00 ppt 3.00 ppt Not Detected
PFMBA 8/15/2023 <3.00 ppt 3.00 ppt Not Detected
PFHxA 8/15/2023 <3.00 ppt 3.00 ppt Not Detected
PFDoA 8/15/2023 <3.00 ppt 3.00 ppt Not Detected
PFDA 8/15/2023 <3.00 ppt 3.00 ppt Not Detected
PFOA 8/15/2023 <4.00 ppt 4.00 ppt Not Detected
PFTrDA 8/15/2023 <7.00 ppt 7.00 ppt Not Detected
HFPO-DA 8/15/2023 <5.00 ppt 5.00 ppt Not Detected
PFMPA 8/15/2023 <4.00 ppt 4.00 ppt Not Detected
PFHxS 8/15/2023 <3.00 ppt 3.00 ppt Not Detected
PFHpA 8/15/2023 <3.00 ppt 3.00 ppt Not Detected
PFBS 8/15/2023 <3.00 ppt 3.00 ppt Not Detected
NEtFOSAA 8/15/2023 <5.00 ppt 5.00 ppt Not Detected
PFTA 8/15/2023 <8.00 ppt 8.00 ppt Not Detected
PFBA 8/15/2023 <5.00 ppt 5.00 ppt Not Detected
6:2 FTS 8/15/2023 <5.00 ppt 5.00 ppt Not Detected
4:2 FTS 8/15/2023 <3.00 ppt 3.00 ppt Not Detected
8:2 FTS 8/15/2023 <5.00 ppt 5.00 ppt Not Detected
PFOS 8/15/2023 <4.00 ppt 4.00 ppt Not Detected
PFTrDA 2/15/2023 <7.00 ppt 7.00 ppt Not Detected
PFBA 2/15/2023 <5.00 ppt 5.00 ppt Not Detected
PFOS 2/15/2023 <4.00 ppt 4.00 ppt Not Detected
PFDA 2/15/2023 <3.00 ppt 3.00 ppt Not Detected
PFOA 2/15/2023 <4.00 ppt 4.00 ppt Not Detected
HFPO-DA 2/15/2023 <5.00 ppt 5.00 ppt Not Detected
ADONA 2/15/2023 <3.00 ppt 3.00 ppt Not Detected
PFNA 2/15/2023 <4.00 ppt 4.00 ppt Not Detected
NEtFOSAA 2/15/2023 <5.00 ppt 5.00 ppt Not Detected
8:2 FTS 2/15/2023 <5.00 ppt 5.00 ppt Not Detected
PFTA 2/15/2023 <8.00 ppt 8.00 ppt Not Detected
9Cl-PF3ONS 2/15/2023 <2.00 ppt 2.00 ppt Not Detected
11Cl-PF3OUdS 2/15/2023 <5.00 ppt 5.00 ppt Not Detected
PFUnA 2/15/2023 <2.00 ppt 2.00 ppt Not Detected
PFHxA 2/15/2023 <3.00 ppt 3.00 ppt Not Detected
NMeFOSAA 2/15/2023 <6.00 ppt 6.00 ppt Not Detected
4:2 FTS 2/15/2023 <3.00 ppt 3.00 ppt Not Detected
PFMPA 2/15/2023 <4.00 ppt 4.00 ppt Not Detected
PFPeA 2/15/2023 <3.00 ppt 3.00 ppt Not Detected
PFMBA 2/15/2023 <3.00 ppt 3.00 ppt Not Detected
PFEESA 2/15/2023 <3.00 ppt 3.00 ppt 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 Arlington High 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 NY1319317 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 Arlington High 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
2022 Lead and Copper Rule TT 6 SDWIS / NY1319317 / 5000
2008 Coliform (TCR) MR 2 SDWIS / NY1319317 / 3100
2007 Lead and Copper Rule MR 6 SDWIS / NY1319317 / 5000
2007 Endrin MR 2 SDWIS / NY1319317 / 2005
2007 Toxaphene MR 2 SDWIS / NY1319317 / 2020
2007 Di(2-ethylhexyl) adipate MR 2 SDWIS / NY1319317 / 2035
2007 Simazine MR 2 SDWIS / NY1319317 / 2037
2007 Di(2-ethylhexyl) phthalate MR 2 SDWIS / NY1319317 / 2039
2007 Picloram MR 2 SDWIS / NY1319317 / 2040
2007 Dinoseb MR 2 SDWIS / NY1319317 / 2041
2007 Aldicarb sulfoxide MR 2 SDWIS / NY1319317 / 2043
2007 Aldicarb sulfone MR 2 SDWIS / NY1319317 / 2044
2007 Aldicarb MR 2 SDWIS / NY1319317 / 2047
2007 Atrazine MR 2 SDWIS / NY1319317 / 2050
2007 LASSO MR 2 SDWIS / NY1319317 / 2051

How Arlington High School Compares

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

Metric Arlington High School New York avg Federal benchmark
Total violations 80 68.2 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 6 3.3 Indicates a contaminant exceeded a federal MCL
PFAS detection None 38.9% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 3,050 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 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is Arlington High School water safe to drink? ▼
Arlington High School (PWS ID: NY1319317) has 80 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 3,050 people using Groundwater sources.
How many people does Arlington High School serve? ▼
Arlington High School serves 3,050 people in Lagrangeville, New York. It is a Local-owned system using Groundwater water sources with 1 service connections.
What type of violations does Arlington High School have? ▼
Arlington High School has 80 total violations: 6 health-based violations (MCL exceedances or treatment failures), 66 monitoring/reporting violations, and 6 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Arlington High School water? ▼
No. Arlington High School was tested for PFAS under the EPA's UCMR5 monitoring program and no PFAS contamination was detected.
What water source does Arlington High School use? ▼
Arlington High 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.
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.

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

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.