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.

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

Environmental Reporti

Air Qualityi

54Moderate

Water Systemsi

3community / 9 total

Water Violationsi

TRI Facilitiesi

Active NPDESi

9/ 27 total

Air Quality — Maries County (2004)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.

Moderate

Median AQI

050100150200300

max 70

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

Transient (6)

Community (3)

Recent Violations (Last 5 Years)

VIENNA PWS

6 violationsLatest: 2025-05-01

EPA

MARIES COUNTY PWSD 1 NORTH

9 violationsLatest: 2024-12-01

EPA

MARIES COUNTY PWSD 1 SOUTH

7 violationsLatest: 2024-12-01

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

QUAKER WINDOW PRODUCTS WOOD36867 HIGHWAY 63 N1 chemical|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

TURKEY HILL RANCH BIBLE CAMP WWTF13489 MARIES RD 301Minor Discharge|EPA

WOOD BUILDING36867 HIGHWAY 63 NORTHConstruction Stormwater|EPA

QUAKER WINDOW PRODUCTS COMPANY - VINYL36867 HIGHWAY 63 NORTHIndustrial Stormwater|EPA

GASCONADE GET AWAY RV PARK HOMEOWNERS12010 MARIES ROAD 339Minor Discharge|EPA

BIG BEAR'S BUTCHER SHOP, LLC35760 HWY. 63 N.Industrial Stormwater|EPA

VIENNA PWSBALL PARK ROADPOTW|EPA

W.W. CEDAR CO LLC34314 HIGHWAY 63NIndustrial Stormwater|EPA

BREAK TIME #3116105 N HWY 63Industrial Stormwater|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.

FEELER LUMBER COMPANY2120 ROLLA ROADIn Progress|EPA

VIENNA WELLS545-547 N. CHESTNUT STREETIn Progress|EPA

Superfund Sitesi

EPA Superfund

Superfund sites are the nation's most seriously contaminated locations. They are placed on the National Priorities List (NPL) and receive long-term federal cleanup funding. Most communities have none.

Vienna Wells

NPL Site

EPA