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.

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

Environmental Reporti

Air Qualityi

41Good

Water Systemsi

Water Violationsi

Active NPDESi

13/ 49 total

Air Quality — Boone 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 67

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 (3)

Recent Violations (Last 5 Years)

HALLSVILLE PWS

3 violationsLatest: 2024-07-01

EPA

Historical Violations (Over 5 Years Ago)

BOONE COUNTY PWSD 4

1 violationLatest: 2013-07-01

EPA

BEDSWORTH MHP

1 violationLatest: 2003-01-01

EPA

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

BCSD SUNNYSLOPE SUBDIVISIONSUNNYSLOPE & RICKETTS RDPOTW|EPA

PANHANDLE EASTERN PIPELINE CO., COLUMBIA13000 OLD HWY 63 NMinor Discharge|EPA

MARTIN VET CLINICN DAVIS ROADConstruction Stormwater|EPA

HALLSVILLE R-IV SCHOOLS421 E HWY 124Construction Stormwater|EPA

G.L.C. CONSTRUCTIONLOT 2 OO HWYConstruction Stormwater|EPA

PARK LANE COMMUNITY CHURCHROUTE B/PARKS LANEMinor Discharge|EPA

BCRSD QUARTER MILE HILLS WWTFBARNES SCHOOL ROADPOTW|EPA

MILLERN TUCKER SCHOOL RDConstruction Stormwater|EPA

BROOKSIE TEEL3551 EAST HIGHWAY 124Construction Stormwater|EPA

CHUCK'S AUTO SALVAGE7521 E MOUNT ZION CHURCH RDIndustrial Stormwater|EPA

BUCKMAN SITE - HALLSVILLE WWTF0.5 MILES SOUTHWEST OF HWY U ANDMinor Discharge|EPA

SALLEE POST SERVICE STATION WWTF11251 N HECHT RDMinor Discharge|EPA

ECHO RIDGE PLAT 314600 RICKETTS ROADConstruction 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 CORP - COLUMBIA SERVICE CTRCOLUMBIA11.4 mi|EPA