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.

Linn, MO Water Quality, EPA Sites & Air Quality Data

CSAColumbia-Jefferson City-Moberly MSAJefferson City#10/24 Population

Environmental Reporti

Water Systemsi

3community / 6 total

Water Violationsi

TRI Facilitiesi

Active NPDESi

15/ 69 total

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

Community (3)

Non-Transient (2)

Transient (1)

Recent Violations (Last 5 Years)

LINN PWS

5 violationsLatest: 2025-06-01

EPA

OSAGE COUNTY PWSD 3

6 violationsLatest: 2025-04-09

EPA

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

ELSEVIER LINN1799 HWY 50 E1 chemical|TRI

H & A MANUFACTURING CO209 WEST MAIN ST|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

BAND PROPERTIES, LLC APARTMENT COMPLEXHIGHWAY 50Construction Stormwater|EPA

LINN WASTEWATER TREATMENT FACILITYPO BOX 498Minor Discharge|EPA

VOSS TRAILER COURT WWTF#1 VOSS TRAILER COURTMinor Discharge|EPA

STATE TECHNICAL COLLEGE MISSOURIONE TECHNOLOGY DRIVEIndustrial Stormwater|EPA

JIM BUTLER AUTOMOTIVE317 W MAIN STConstruction Stormwater|EPA

OSAGE COUNTY PWSD #3P.O. BOX 587Construction Stormwater|EPA

STATE TECHNICAL COLLEGE MISSOURIONE TECHNOLOGY DRIVEConstruction Stormwater|EPA

LSC COMMUNICATIONS1799 U.S. 50 EASTMinor Discharge|EPA

STATE TECHNICAL COLLEGE MISSOURIONE TECHNOLOGY DRIVEConstruction Stormwater|EPA

TIMBER RIDGE PROCESSING, LLC136 PLUM LANEMinor Discharge|EPA

FAIRGROUND APARTMENTS WWTPHWY 50 E/FAIRGROUND DRMinor Discharge|EPA

MEBRUER AND SON TRUCKING, INC.HIGHWAY UMinor Discharge|EPA

JOHN R BRYAN - LINNN TWELFTH ST AND HIGH RIDGE TRAIL ST.Construction Stormwater|EPA

OSAGE COUNTY PWSD #3P.O. BOX 587Construction Stormwater|EPA

EV Charging & Alternative Fuel Stationsi

AFDC

Publicly listed alternative fuel and EV charging stations within the municipality. Data from the U.S. Department of Energy. "Open" stations are currently available for use; "Planned" stations are approved but not yet operational.

Total Stationsi