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.

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

Environmental Reporti

Air Qualityi

40Good

Water Systemsi

7community / 12 total

Water Violationsi

TRI Facilitiesi

Active NPDESi

18/ 163 total

Air Quality — Jefferson 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 77

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

Community (7)

Transient (4)

Non-Transient (1)

Recent Violations (Last 5 Years)

STARLING MHP

1 violationLatest: 2022-01-01

EPA

LYNN ACRES MHP

1 violationLatest: 2025-01-01

EPA

Historical Violations (Over 5 Years Ago)

JEFFERSON COUNTY PWSD 3

1 violationLatest: 2006-07-01

EPA

SCENIC VIEW MHP

1 violationLatest: 2013-07-01

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

METAL CONTAINER CORP - ARNOLD CAN PLANT42 TENBROOK INDUSTRIAL PARK5 chemicals|TRI

SUPERIOR INDUSTRIAL SOLUTIONS INC.3023 ARNOLD TENBROOK ROAD5 chemicals|TRI

SINCLAIR & RUSH INC.123 MANUFACTURERS DR4 chemicals|TRI

BROWNINGONE BROWNING PL1 chemical|TRI

UNISEAL RUBBER PRODS INC2955 ARNOLD TENBROOK RD|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

NORTHER LIGHTS DRIVE CULVERT REPLACEMENT3027 NORTHERN LIGHTS DRIVEConstruction Stormwater|EPA

FOX HIGH SCHOOOL745 JEFFCO BOULEVARDConstruction Stormwater|EPA

VILLAS AT MILLER CROSSING3229 MILLER ROADConstruction Stormwater|EPA

ABOVE AND BELOW ARNOLD3033 ARNOLD TENBROOK ROADConstruction Stormwater|EPA

ARNOLD PHASE II MS42101 JEFFCO BLVDPHASE II MS4|EPA

JEFFCO LANDFILL1650 OLD HIGHWAY 21Minor Discharge|EPA

JAMES FRISELLA2800 EAST ROCK CREEKConstruction Stormwater|EPA

THE VILLAS AT AMBERLEIGH WOODSAMBERLEIGH PKWY @ LIONS DEN RD.Construction Stormwater|EPA

MERAMEC HAULING1308 LONEDELLMinor Discharge|EPA

GATEWAY INDUSTRIAL2880 ARNOLD TENBROOKConstruction Stormwater|EPA

METAL CONTAINER CORPORATION42 TENBROOK INDUSTRIAL PARKIndustrial Stormwater|EPA

SALON MERAKI1671 JEFFCO BLVDConstruction Stormwater|EPA

SIMPSON MATERIALS COMPANY LLCHWY 141Minor Discharge|EPA

PLANET FITNESS ARNOLD MO1140 JEFFCO BLVDConstruction Stormwater|EPA

ARNOLD TRANSFER STATIONHWY 141 AND HARPER LANEIndustrial Stormwater|EPA

HANSEN'S TREE SERVICE1730 CECOS LANEIndustrial Stormwater|EPA

ST. JOHNS LUTHERAN CHURCH3517 JEFFCO BLVD,Construction Stormwater|EPA

THE RIDGE AT TUSCAN VALLEY605 E OUTER 21Construction 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.

JEFFCO PROPERTY4009 JEFFCO BOULEVARDIn Progress|

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

EV Stationsi

DC Fast Portsi

Non-NetworkedTeslaeVgo Network

Arnold, CA - Tesla Supercharger2182 CA-4Electric8 DCTesla

Commerce Bank - Arnold956 Jeffco BlvdElectric1 DCeVgo Network

Rocket Gas Station1297 CA-4Electric1 DCNon-Networked