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.

Clio, MI Water Quality, EPA Sites & Air Quality Data

Environmental Reporti

Air Qualityi

38Good

Water Systemsi

4community / 76 total

Water Violationsi

Active NPDESi

5/ 13 total

Air Quality — Genesee 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 126

PM2.5 Daysi

Ozone Daysi

220

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 (40)

Non-Transient (6)

Community (4)

Recent Violations (Last 5 Years)

CLIO, CITY OF

12 violationsLatest: 2024-07-01

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

VIENNA TWP MS4-GENESEE3400 WEST VIENNA ROADMinor Discharge|EPA

CLIO MS4-GENESEE505 WEST VIENNA STREETMinor Discharge|EPA

R & R READY MIX-CLIO14151 NORTH SAGINAWMinor Discharge|EPA

CLIO AREA PS MS4-GENESEE430 NORTH MILL STREETMinor Discharge|EPA

MONTROSE MHP WTP7228 WEST FARRAND ROADMinor Discharge|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.

WHITE OIL FIRE/EXPLOSION SITE11136 N. SAGINAW ROADIn Progress|EPA

MONSTER RECYCLING, RUSH ENTERPRISES10040 N. DORT HIGHWAYIn Progress|

GADA JONDY10085 AND 10101 N. SAGINAWIn Progress|