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.

Old Monroe, MO Water Quality, EPA Sites & Air Quality Data

CSASt. Louis-St. Charles-Farmington MSASt. Louis#134/265 Home Value

Environmental Reporti

Air Qualityi

42Good

Water Systemsi

Water Compliancei

Clean

Active NPDESi

15/ 27 total

Air Quality — Lincoln 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 90

PM2.5 Daysi

Ozone Daysi

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)

Transient (1)

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

FASTLANE2116 STATE HIGHWAY CConstruction Stormwater|EPA

MONARCH ESTATESHWY OOConstruction Stormwater|EPA

LINCOLN COUNTY BOAT AND RV STORAGE2195 HIGHWAY CConstruction Stormwater|EPA

BMC PLANT 24 OLD MONROE111 EAST LOCUST STREETIndustrial Stormwater|EPA

DOLLAR GENERAL - OLD MONROE2195 HIGHWAY CConstruction Stormwater|EPA

MAGRUDER PAVING LLC385 NORTH MAIN STREETMinor Discharge|EPA

HILLSIDE SEPTIC SERVICE447 SOUTH LINDSEYMinor Discharge|EPA

HIDDEN VALLEY MEADOWS WWTP100 HIDDEN VALLEY LANEMinor Discharge|EPA

MALLARD POINTE40 MALLARD POINTEConstruction Stormwater|EPA

MALLARD POINTE WWTPTERMINUS OF GOLDEN EYE COURTMinor Discharge|EPA

LCPWSD NO. 1 GREEN ACRES WWTFOLD MONROEPOTW|EPA

RED HAWK ESTATES MHP WWTFHIGHWAY OOMinor Discharge|EPA

MUELLER BROTHERS TIMBER INC.148 EAST MAIN STREETMinor Discharge|EPA

OLD MONROE SAND & GRAVELKEETEMAN ROADPOTW|EPA

KEYSTONE ESTATES WWTPNORTH EAST CORNER OF KEYSTONE DRIVEMinor Discharge|EPA