Oswego, NY
A PlainEnviro-computed score from reported facility/violation counts, not an official EPA rating, health forecast, or population-adjusted rate. See methodology.
Environmental data for Oswego in New York · Population: 117,945
Oswego, NY is tracked across three EPA datasets covering 5 Toxics Release Inventory (TRI) facilities, 27 Safe Drinking Water Act systems, and 0 Superfund National Priorities List sites. Together these generate an environmental burden score of 40/100 (Moderate Risk), calibrated against national distributions for facility density, chemical release volume, Superfund concentration, and water-system health violations.
Industrial disclosures inside the county total 655.3K lbs of reported toxic releases under EPCRA Section 313, while 9 water systems carry an active health-based violation in the SDWIS record. EPA Air Quality System monitors logged a median AQI of 32 and a peak AQI of 61 in 2024, with 98% of observed days rated "Good" (0–50).
All figures below draw directly from federal EPA records, TRI self-reported emissions, SDWIS compliance history, NPL Hazard Ranking System scores, and AQS daily AQI summaries, and are not adjusted, weighted, or forecast. A past violation or elevated score does not itself indicate current unsafe conditions; it documents the regulatory and disclosure history publicly filed with the U.S. Environmental Protection Agency through the most recent reporting cycle.
Air Quality History (2020–2024)
EPA Air Quality Index (AQI) data showing how many days per year fall into each air quality category.
| Year | Good | Moderate | Unhealthy (SG) | Max AQI |
|---|---|---|---|---|
| 2024 | 353 (98%) | 6 | 0 | 61 |
| 2023 | 341 (96%) | 14 | 1 | 105 |
| 2022 | 349 (99%) | 5 | 0 | 58 |
| 2021 | 337 (94%) | 23 | 0 | 97 |
| 2020 | 349 (97%) | 10 | 0 | 58 |
Source: EPA Air Quality System (AQS) Annual AQI by County EPA Air Quality System (AQS) Annual AQI by County AQI categories: Good (0-50), Moderate (51-100), Unhealthy for Sensitive Groups (101-150), Unhealthy (151-200), Very Unhealthy (201-300), Hazardous (301+)
For real-time air quality readings and pollutant breakdowns in New York, see the EPA's AirNow.gov.
Water Systems (27)
| System | Population | Violations |
|---|---|---|
| OSWEGO CITY | 29,400 | 2 |
| FULTON CITY | 16,600 | 0 |
| SCRIBA WD (OSWEGO) | 9,044 | 0 |
| RICHLAND TOWN PWS | 3,950 | 0 |
| PULASKI VILLAGE | 2,398 | 0 |
| PHOENIX VILLAGE | 2,138 | 2 |
| MEXICO VILLAGE | 2,100 | 0 |
| HANNIBAL TOWN WATER DISTRICT #2 | 2,000 | 0 |
| SANDY CREEK/LACONA JOINT WATERWORKS | 1,469 | 1 |
| SANDY CREEK TOWN WD #1 | 1,464 | 0 |
| VIRGIL W.D. #1 - GREEK PEAK WATERWORKS | 1,400 | 0 |
| MEXICO TOWN WD #1 | 500 | 0 |
| COUNTRY HAVEN MOBILE HOME PARK | 300 | 0 |
| BLUE JAY LANE MOBILE HOME PARK | 240 | 0 |
| SANDY CREEK TOWN WD#2 | 219 | 0 |
| GREEN ACRES MHP | 139 | 4 |
| WOODLAND MOBILE HOME HAVEN | 120 | 0 |
| S&E MOBILE HOME PARK, LLC | 95 | 0 |
| KERFIEN MOBILE HOME PARK | 90 | 2 |
| S&E MOBILE HOME PARK, LLC - ROUTE 69 | 90 | 0 |
| LIBERTY COMMUNITY, LLC | 60 | 1 |
| RIVERVIEW MOBILE COURT | 45 | 2 |
| EASON MOBILE HOME PARK | 45 | 3 |
| SILVER ROCK MOBILE HOME PARK | 40 | 0 |
| RICHLAND TOWN WD #2 | 26 | 0 |
| FURLONG MOBILE HOME PARK | 25 | 2 |
| EVERGREEN MOBILE HOME PARK | 22 | 0 |
TRI Facilities (5)
| # | Facility | Total Releases |
|---|---|---|
| 1 | Novelis Corp | 652.0K lbs |
| 2 | Omega Wire Inc - Williamstown Facility | 3.3K lbs |
| 3 | Oswego Harbor Power | 39 lbs |
| 4 | Attis Ethanol Fulton LLC | 16 lbs |
| 5 | Lydall Performance Materials | 6 lbs |
Cities in Oswego (5)
Frequently Asked Questions
What is the environmental risk level in Oswego, New York? ▼
Are there Superfund sites in Oswego? ▼
How many toxic release facilities are in Oswego? ▼
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Is the drinking water safe in Oswego? ▼
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What does this county environmental profile show?
This county environmental profile rolls up EPA Toxics Release Inventory facility reports, Safe Drinking Water Information System public-water-system filings, and Superfund National Priorities List sites for the county boundary defined by the U.S. Census Bureau. Facility counts reflect facilities with a reporting address inside the county, not where downstream environmental effects may be observed. Population figures are from the most recent Census ACS 5-year estimate. The county detail page is updated whenever the upstream EPA programs publish revised data; see the methodology page for the documented ingest cadence and the editorial choices governing how aggregations are computed.
Read our methodology - how this data is sourced, computed, and verified.