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.

Tomahawk, WI Water Quality, EPA Sites & Air Quality Data

Environmental Reporti

Water Systemsi

2community / 151 total

Water Violationsi

TRI Facilitiesi

5316 lbs reported

Active NPDESi

6/ 12 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

Transient (47)

Community (2)

Non-Transient (1)

Recent Violations (Last 5 Years)

TOMAHAWK WATERWORKS

6 violationsLatest: 2024-10-17

EPA

Historical Violations (Over 5 Years Ago)

LAKESIDE APARTMENTS

1 violationLatest: 1993-07-01

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

Total Reported Releasesi

316 lbs

H-D MOTOR CO-TOMAHAWK SOMO426 E SOMO AVE5 chemicals|TRI

LOUISIANA-PACIFIC CORP TOMAHAWK WI9300 COUNTY HWY S5 chemicals|TRI

PACKAGING CORP OF AMERI CAN9090 COUNTY RD E5 chemicals|TRI

SAMUEL SON & CO (USA) INC.1119A BRIDGE ST3 chemicals|TRI

HARLEY-DAVIDSON TOMAHAWK KAPHAEM FACILITY611 KAPHAEM RD2 chemicals|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

AMELSE MINI STORAGE SITE489 SOUTHGATE DRIVEMinor Discharge|EPA

LOUISIANA-PACIFIC SITE927 SOUTHGATE DRIVEMinor Discharge|EPA

NGL SUPPLY CO. LTD. SITEPIN NO. 28635063319997, 28635063310094Minor Discharge|EPA

TOMAHAWK IRON & METALN10447 TANNERY RDMinor Discharge|EPA

CITY OF TOMAHAWK SITEKINGS RD (KINGS HILL E 500'), KINGS HILL DR, RIVERMinor Discharge|EPA

SCHOOL DISTRICT OF TOMAHAWK SITE1048 E KING RDMinor Discharge|EPA