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OSWEGO CITY

PWS ID: NY3704361 · OSWEGO, New York 13126

OSWEGO CITY serves 29,400 people in OSWEGO, New York using Surface Water water sources. It has 14 recorded EPA violations, including 14 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: OSWEGO CITY

OSWEGO CITY is a local-owned community water system that delivers drinking water to 29,400 residents in OSWEGO, New York (Oswego County) through 8,200 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 14 total violations for this system , of which 14 (100%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. The most recent violation on record dates to 2015.

The most frequently cited contaminant at this system is Stage 1 Disinfectants and Disinfection Byproducts Rule, recorded in 7 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. OSWEGO CITY's 14 violations sit below 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.

Population Served
29,400
Total Violations
14
Health-Based Violations
14
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
8,200
County
Oswego
School/Daycare
No
MCL Violations
0
Monitoring Violations
0
Treatment Tech Violations
14

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Stage 1 Disinfectants and Disinfection Byproducts Rule TT 7 2013
Long Term 2 Enhanced Surface Water Treatment Rule TT 4 2015
Interim Enhanced Surface Water Treatment Rule TT 3 2002

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 0 of 120 samples detected PFAS.

Contaminant Date Result MRL Status
PFUnA 9/13/2023 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 9/13/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFOS 9/13/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFHxA 9/13/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 9/13/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 9/13/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 9/13/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFNA 9/13/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFHxS 9/13/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 9/13/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 9/13/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 9/13/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 9/13/2023 <0.004 µg/L 0.004 µg/L Not Detected
NFDHA 9/13/2023 <0.02 µg/L 0.02 µg/L Not Detected
9Cl-PF3ONS 9/13/2023 <0.002 µg/L 0.002 µg/L Not Detected
PFPeA 9/13/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFTrDA 9/13/2023 <0.007 µg/L 0.007 µg/L Not Detected
ADONA 9/13/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 9/13/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFTA 9/13/2023 <0.008 µg/L 0.008 µg/L Not Detected
NEtFOSAA 9/13/2023 <0.005 µg/L 0.005 µg/L Not Detected
NMeFOSAA 9/13/2023 <0.006 µg/L 0.006 µg/L Not Detected
lithium 9/13/2023 <9 µg/L 9 µg/L Not Detected
8:2 FTS 9/13/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 9/13/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFHpS 9/13/2023 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 9/13/2023 <0.005 µg/L 0.005 µg/L Not Detected
6:2 FTS 9/13/2023 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 9/13/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 9/13/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 6/10/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFMBA 6/10/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 6/10/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 6/10/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 6/10/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 6/10/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 6/10/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 6/10/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFDoA 6/10/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 6/10/2024 <0.004 µg/L 0.004 µg/L Not Detected
11Cl-PF3OUdS 6/10/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFHpS 6/10/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 6/10/2024 <0.002 µg/L 0.002 µg/L Not Detected
9Cl-PF3ONS 6/10/2024 <0.002 µg/L 0.002 µg/L Not Detected
ADONA 6/10/2024 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 6/10/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 6/10/2024 <0.005 µg/L 0.005 µg/L Not Detected
6:2 FTS 6/10/2024 <0.005 µg/L 0.005 µg/L Not Detected
8:2 FTS 6/10/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFMPA 6/10/2024 <0.004 µg/L 0.004 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 OSWEGO CITY.

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 NY3704361 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 OSWEGO CITY 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
2015 Long Term 2 Enhanced Surface Water Treatment Rule TT 4 SDWIS / NY3704361 / 0800
2013 Stage 1 Disinfectants and Disinfection Byproducts Rule TT 7 SDWIS / NY3704361 / 0400
2002 Interim Enhanced Surface Water Treatment Rule TT 3 SDWIS / NY3704361 / 0300

How OSWEGO CITY Compares

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

Metric OSWEGO CITY New York avg Federal benchmark
Total violations 14 68.2 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 14 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 29,400 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 OSWEGO CITY water safe to drink? ▼
OSWEGO CITY (PWS ID: NY3704361) has 14 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 29,400 people using Surface Water sources.
How many people does OSWEGO CITY serve? ▼
OSWEGO CITY serves 29,400 people in OSWEGO, New York. It is a Local-owned system using Surface Water water sources with 8,200 service connections.
What type of violations does OSWEGO CITY have? ▼
OSWEGO CITY has 14 total violations: 14 health-based violations (MCL exceedances or treatment failures), 0 monitoring/reporting violations, and 14 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in OSWEGO CITY water? ▼
No. OSWEGO CITY was tested for PFAS under the EPA's UCMR5 monitoring program and no PFAS contamination was detected.
What water source does OSWEGO CITY use? ▼
OSWEGO CITY uses Surface Water 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. 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.

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