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Community Water System · PWS NY2902822

Franklin Square WD

Franklin Square, New York 11010 - drinking water served from groundwater sources to 20,000 people, tracked in EPA SDWIS and UCMR5.

20,000
People served
127
EPA violations
15
Health-based
No PFAS
UCMR5 result

The verdict

EPA records 127 drinking-water violations at Franklin Square WD, 12% of them health-based - above the New York per-system average.

127
Total EPA violations on record
12%
Health-based (MCL / treatment failure)
20,000
People served by this system
0
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Franklin Square WD

Franklin Square WD is a public/private-owned community water system that delivers drinking water to 20,000 residents in Franklin Square, New York (Nassau County) through 5,190 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 127 total violations for this system , of which 15 (12%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 112 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 Coliform (TCR), recorded in 15 violations (MCL, 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%).

Franklin Square WD's 127 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
20,000
Total Violations
127
Health-Based Violations
15
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Public/Private
Connections
5,190
County
Nassau
School/Daycare
No
MCL Violations
15
Monitoring Violations
112
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 15 2015
BHC-GAMMA MR 4 2022
Methoxychlor MR 4 2022
Toxaphene MR 4 2022
Dalapon MR 4 2022
Picloram MR 4 2022
Dinoseb MR 4 2022
Hexachlorocyclopentadiene MR 4 2022
Aldicarb sulfone MR 4 2022
Carbofuran MR 4 2022
Aldicarb MR 4 2022
LASSO MR 4 2022
Heptachlor MR 4 2022
2,4-D MR 4 2022
Pentachlorophenol MR 4 2022
Total Polychlorinated Biphenyls (PCB) MR 4 2022
Chlordane MR 4 2022
Benzo(a)pyrene MR 4 2022
Simazine MR 4 2022
Aldicarb sulfoxide MR 4 2022
HEXACHLOROBENZENE MR 4 2022
OXAMYL MR 4 2022
ETHYLENE DIBROMIDE MR 4 2022
Di(2-ethylhexyl) adipate MR 4 2022
2,4,5-TP MR 4 2022
Endrin MR 4 2022
Di(2-ethylhexyl) phthalate MR 4 2022
Atrazine MR 4 2022
Heptachlor epoxide MR 4 2022

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 0 of 174 samples detected PFAS.

Contaminant Date Result MRL Status
PFHpS 4/2/2024 <3.00 ppt 3.00 ppt Not Detected
PFOA 4/2/2024 <4.00 ppt 4.00 ppt Not Detected
PFHxA 4/2/2024 <3.00 ppt 3.00 ppt Not Detected
ADONA 4/2/2024 <3.00 ppt 3.00 ppt Not Detected
9Cl-PF3ONS 4/2/2024 <2.00 ppt 2.00 ppt Not Detected
PFBA 4/2/2024 <5.00 ppt 5.00 ppt Not Detected
11Cl-PF3OUdS 4/2/2024 <5.00 ppt 5.00 ppt Not Detected
PFUnA 4/2/2024 <2.00 ppt 2.00 ppt Not Detected
NMeFOSAA 4/2/2024 <6.00 ppt 6.00 ppt Not Detected
NEtFOSAA 4/2/2024 <5.00 ppt 5.00 ppt Not Detected
PFTrDA 4/2/2024 <7.00 ppt 7.00 ppt Not Detected
PFTA 4/2/2024 <8.00 ppt 8.00 ppt Not Detected
PFHxS 4/2/2024 <3.00 ppt 3.00 ppt Not Detected
PFDA 4/2/2024 <3.00 ppt 3.00 ppt Not Detected
PFNA 4/2/2024 <4.00 ppt 4.00 ppt Not Detected
PFPeS 4/2/2024 <4.00 ppt 4.00 ppt Not Detected
NFDHA 4/2/2024 <20.00 ppt 20.00 ppt Not Detected
PFOS 4/2/2024 <4.00 ppt 4.00 ppt Not Detected
PFEESA 4/2/2024 <3.00 ppt 3.00 ppt Not Detected
PFMBA 4/2/2024 <3.00 ppt 3.00 ppt Not Detected
PFPeA 4/2/2024 <3.00 ppt 3.00 ppt Not Detected
PFMPA 4/2/2024 <4.00 ppt 4.00 ppt Not Detected
8:2 FTS 4/2/2024 <5.00 ppt 5.00 ppt Not Detected
4:2 FTS 4/2/2024 <3.00 ppt 3.00 ppt Not Detected
6:2 FTS 4/2/2024 <5.00 ppt 5.00 ppt Not Detected
PFDoA 4/2/2024 <3.00 ppt 3.00 ppt Not Detected
PFBS 4/2/2024 <3.00 ppt 3.00 ppt Not Detected
PFHpA 4/2/2024 <3.00 ppt 3.00 ppt Not Detected
HFPO-DA 4/2/2024 <5.00 ppt 5.00 ppt Not Detected
PFPeS 4/2/2024 <4.00 ppt 4.00 ppt Not Detected
PFPeA 4/2/2024 <3.00 ppt 3.00 ppt Not Detected
PFMBA 4/2/2024 <3.00 ppt 3.00 ppt Not Detected
PFMPA 4/2/2024 <4.00 ppt 4.00 ppt Not Detected
PFBS 4/2/2024 <3.00 ppt 3.00 ppt Not Detected
PFEESA 4/2/2024 <3.00 ppt 3.00 ppt Not Detected
PFHpS 4/2/2024 <3.00 ppt 3.00 ppt Not Detected
PFNA 4/2/2024 <4.00 ppt 4.00 ppt Not Detected
8:2 FTS 4/2/2024 <5.00 ppt 5.00 ppt Not Detected
4:2 FTS 4/2/2024 <3.00 ppt 3.00 ppt Not Detected
6:2 FTS 4/2/2024 <5.00 ppt 5.00 ppt Not Detected
PFBA 4/2/2024 <5.00 ppt 5.00 ppt Not Detected
HFPO-DA 4/2/2024 <5.00 ppt 5.00 ppt Not Detected
ADONA 4/2/2024 <3.00 ppt 3.00 ppt Not Detected
9Cl-PF3ONS 4/2/2024 <2.00 ppt 2.00 ppt Not Detected
11Cl-PF3OUdS 4/2/2024 <5.00 ppt 5.00 ppt Not Detected
PFUnA 4/2/2024 <2.00 ppt 2.00 ppt Not Detected
PFHxA 4/2/2024 <3.00 ppt 3.00 ppt Not Detected
PFDoA 4/2/2024 <3.00 ppt 3.00 ppt Not Detected
PFDA 4/2/2024 <3.00 ppt 3.00 ppt Not Detected
PFOS 4/2/2024 <4.00 ppt 4.00 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 Franklin Square WD.

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 NY2902822 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 Franklin Square WD 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 BHC-GAMMA MR 4 SDWIS / NY2902822 / 2010
2022 Methoxychlor MR 4 SDWIS / NY2902822 / 2015
2022 Toxaphene MR 4 SDWIS / NY2902822 / 2020
2022 Dalapon MR 4 SDWIS / NY2902822 / 2031
2022 Picloram MR 4 SDWIS / NY2902822 / 2040
2022 Dinoseb MR 4 SDWIS / NY2902822 / 2041
2022 Hexachlorocyclopentadiene MR 4 SDWIS / NY2902822 / 2042
2022 Aldicarb sulfone MR 4 SDWIS / NY2902822 / 2044
2022 Carbofuran MR 4 SDWIS / NY2902822 / 2046
2022 Aldicarb MR 4 SDWIS / NY2902822 / 2047
2022 LASSO MR 4 SDWIS / NY2902822 / 2051
2022 Heptachlor MR 4 SDWIS / NY2902822 / 2065
2022 2,4-D MR 4 SDWIS / NY2902822 / 2105
2022 Pentachlorophenol MR 4 SDWIS / NY2902822 / 2326
2022 Total Polychlorinated Biphenyls (PCB) MR 4 SDWIS / NY2902822 / 2383

How Franklin Square WD Compares

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

Metric Franklin Square WD New York avg Federal benchmark
Total violations 127 68.2 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 15 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 20,000 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 Franklin Square WD water safe to drink?
Franklin Square WD (PWS ID: NY2902822) has 127 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 20,000 people using Groundwater sources.
How many people does Franklin Square WD serve?
Franklin Square WD serves 20,000 people in Franklin Square, New York. It is a Public/Private-owned system using Groundwater water sources with 5,190 service connections.
What type of violations does Franklin Square WD have?
Franklin Square WD has 127 total violations: 15 health-based violations (MCL exceedances or treatment failures), 112 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Franklin Square WD water?
No. Franklin Square WD was tested for PFAS under the EPA's UCMR5 monitoring program and no PFAS contamination was detected.
What water source does Franklin Square WD use?
Franklin Square WD 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.
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.
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.