What environmental databases are included?

This page aggregates data from eight EPA databases: Safe Drinking Water (SDWIS), Superfund/NPL sites, Toxic Release Inventory (TRI), Air Quality Index (AQI), Leaking Underground Storage Tanks (LUST), NPDES water discharge permits, RCRA hazardous waste, and Brownfields.

What does the Air Quality Index (AQI) mean?

AQI is measured on a scale from 0 to 500. Values under 50 are 'Good,' 51-100 is 'Moderate,' and above 100 is 'Unhealthy for Sensitive Groups.' AQI is measured at the county level since air quality monitoring stations are sparse. Your town shares its county's AQI reading.

What is a Superfund site?

A Superfund site is a location contaminated by hazardous waste that has been placed on the EPA's National Priorities List (NPL) for long-term cleanup. These sites pose serious risks to human health and the environment. Cleanup can take decades and cost hundreds of millions of dollars.

Madison, OH Water Quality, EPA Sites & Air Quality Data

Environmental Reporti

Air Qualityi

48Good

Water Systemsi

Water Compliancei

Clean

TRI Facilitiesi

7253.0K lbs reported

Active NPDESi

5/ 16 total

Air Quality — Madison County (2025)i

AQS

The Air Quality Index measures how clean or polluted the air is on a given day. AQI is reported at the county level. A score of 0–50 is considered good; 51–100 is moderate; above 100 may be unhealthy for sensitive groups.

Good

Median AQI

050100150200300

max 260

PM2.5 Daysi

164

Ozone Daysi

137

Drinking Wateri

SDWIS

Public water systems registered to serve this area. Community systems (CWS) provide water to residents year-round. Transient systems serve places like gas stations or restaurants. Violations indicate a system failed to meet federal drinking water standards.

Community Systemsi

Active Systemsi

Recent Violationsi

Non-Transient (1)

Toxic Release Inventory (TRI)i

TRI

Factories, refineries, and other industrial facilities that use or store hazardous chemicals are required to report their releases annually to the EPA. Being listed here does not mean a violation occurred — it means the facility is transparently tracking its chemical usage.

Reporting Facilitiesi

With Chemical Datai

Total Reported Releasesi

253.0K lbs

GREEN PLAINS MADISON LLC395 BISSELL STREET5 chemicals|TRI

ST LOUIS SCREW & BOLT2000 ACCESS BLVD5 chemicals|TRI

MAGNESIUM ELEKTRON NA INC MADISON1001 COLLEGE ST5 chemicals|TRI

CUSTOM STEEL PROCESSING INC.1001 COLLEGE ST4 chemicals|TRI

DIAMOND PLATING CO INC5 CAINE DR3 chemicals|TRI

KERR MCGEE CHEMICAL LLC#2 WASHINGTON ST2 chemicals|TRI

SWIFT ADHESIVES INC8 FARISH DR|TRI

Wastewater & Stormwater Permits (NPDES)i

NPDES

Under the Clean Water Act, any facility that discharges wastewater or stormwater into rivers, lakes, or streams must hold an NPDES permit. "Effective" means the permit is currently active and the facility is authorized to discharge under its permit conditions.

Active Permitsi

Expired / Terminatedi

CHAIN OF ROCKS CANAL PIPELINE REPLACEMENT PROJECTCHOUTEAU ISLANDConstruction Stormwater|EPA

GREEN PLAINS MADISON LLC395 BISSELL STREETConstruction Stormwater|EPA

76T17 - IL 203 BRIDGE REPLACEMENT700 RACEWAY BLVDConstruction Stormwater|EPA

GREEN PLAINS MADISON LLC395 BISSELL STREETMinor Discharge|EPA

RAIL LOOP BUILDING SITEXX BISSELL STREETConstruction Stormwater|EPA

Nearest Hazardous Waste Disposal Facilitiesi

RCRA

These are the closest licensed facilities where hazardous waste (chemicals, solvents, industrial byproducts) can be legally treated, stored, or disposed of.

SAFETY-KLEEN SYSTEMS INCCASEYVILLE5.8 mi|EPA

VEOLIA ES TECHNICAL SOLUTIONS LLCSAUGET7.8 mi|EPA

Cleanup Sites (Brownfields)i

EPA Brownfields

Former industrial or commercial properties where contamination has been found. "Remedy Complete" means cleanup is finished. "Construction Complete" means cleanup infrastructure is built but monitoring continues. "In Progress" means the site is still being investigated or cleaned up.

KERR MCGEE CHEMICAL LLC2 WASHINGTON AVENUEConstruction Complete|EPA

INTERCO TRADING CO10 FOX INDUSTRIAL DRIn Progress|EPA

MAGNESIUM ELEKTRON NORTH AMERICA1001 COLLEGE STIn Progress|EPA

AMERICA CENTRAL PORT SITE 2190 E STREETIn Progress|

VACANT LOTS - B1507, 1509, 1511, 1529-1533, 1541 MARKET STREETIn Progress|

VACANT LOTS - C1665, 1681, 1685, 1713 MARKET STREETIn Progress|

CHESTNUT SITE A1412-1426 SIXTH STREETIn Progress|

1201 WEST 4TH ST.1201 WEST 4TH ST.In Progress|

VACANT LOTS - A803, 807, 815 BISSELL AVENUEIn Progress|

GARESCHE HOMES84 GARESCHEIn Progress|

CHESTNUT SITE B1417-1436 SEVENTH STREETIn Progress|

MT. NEBO CHURCH PARCELSWEST 2ND, WEST 3RD, JEFFERSON, WASHINGTON STREETSIn Progress|

3005 WEST 20TH ST.3005 WEST 20TH ST.In Progress|

Leaking Underground Storage Tanksi

OH EPA

Underground storage tanks (commonly at gas stations) can leak fuel and chemicals into soil and groundwater. "Open" means the leak is still being investigated or cleaned up. "Closed" means the site received a No Further Remediation (NFR) letter — cleanup is done.

Total 20Open 4Closed 16

Open Incidents (4)

Madison, City of5 Caine Drive|#20180903|OH EPA

NDC Housing Development Corp.1601 Market Street|#20050460|OH EPA

Lobana Real Estate IL, LLC1200 Madison Avenue|#20210015|OH EPA

Ace Doran Hauling & Rigging2 Fox Industrial Dr.|#981251|OH EPA