Pollution Analyst
How it works→
City · TRI 2024

Iron Belt, Wisconsin Pollution

0 TRI facilities inside the city limits and 1 public water system serving residents.

FIPS 5537125 · population 174 · Iron County

Water systemsPathwaysEquity context
Anomaly engine

Notable Signals

HEALTH-BASED · 5-YEAR WINDOW · SDWIS VIOLATION

Contaminant 0700

Drinking water rule (140) health-based violation cited in 2023 (contaminant 0700).

EPA SDWIS record →

HEALTH-BASED · 5-YEAR WINDOW · SDWIS VIOLATION

Contaminant 0700

Drinking water rule (140) health-based violation cited in 2023 (contaminant 0700).

EPA SDWIS record →

Pollutant pathways

Iron Belt Pollutant Multi-Year Trends

HAZARDOUS AIR2020 VINTAGE

Lifetime cancer risk all pollutants (100 in a million (EPA elevated threshold))Health riskEPA-modeled added cancer cases per million residents from a lifetime of breathing local air toxics. EPA flags 100-in-a-million as elevated.

14.5 per million · 2020 vintage

Single-vintage exposure modeling — EPA cadence is multi-year, so no trend line yet.

HAZARDOUS AIR2020 VINTAGE

Formaldehyde ambient mean (0.077 µg/m³ (1-in-a-million URE))Health riskAn air toxic emitted by refineries, wood products, and combustion. EPA classifies it as a known human carcinogen — long-term inhalation raises cancer risk.

0.72 µg/m³ · 2020 vintage

Single-vintage exposure modeling — EPA cadence is multi-year, so no trend line yet.

HAZARDOUS AIR2020 VINTAGE

Benzene ambient mean (0.13 µg/m³ (1-in-a-million URE))Health riskAn air toxic from gasoline, refineries, and tobacco smoke. A known human carcinogen — chronic exposure is linked to leukemia and other blood cancers.

0.06 µg/m³ · 2020 vintage

Single-vintage exposure modeling — EPA cadence is multi-year, so no trend line yet.

TRI AIR2024 VINTAGE

TRI air releases (5.1 fugitive + 5.2 stack)Health riskToxic chemicals reported by industrial facilities as released into the air — fugitive leaks plus smokestack emissions. Higher pounds means more inhaled exposure for nearby residents.

0 lb · 2024 vintage

Single-vintage exposure modeling — EPA cadence is multi-year, so no trend line yet.

TRI WATER2024 VINTAGE

TRI water releases (5.3)Health riskToxic chemicals reported by industrial facilities as discharged to surface waters (rivers, lakes, the ocean). Affects fishing, recreation, and downstream drinking-water intakes.

0 lb · 2024 vintage

Single-vintage exposure modeling — EPA cadence is multi-year, so no trend line yet.

TRI LAND2024 VINTAGE

TRI land + off-site releasesHealth riskToxic chemicals released to land on-site or transferred off-site for disposal — landfills, deep-well injection, and similar. Risks groundwater contamination over time.

0 lb · 2024 vintage

Single-vintage exposure modeling — EPA cadence is multi-year, so no trend line yet.

Drinking water · SDWIS

Water Systems Serving Iron Belt

2 health-based SDWIS violations in the past 5 years across utilities serving this city; none currently unresolved.

SDWIS · 5-YR WINDOW
1

Utilities serving

SDWIS · 5-YR WINDOW
211

Population served

SDWIS · 5-YR WINDOW
2

Health-based · 5yr

SDWIS · 5-YR WINDOW
0

Unresolved

Water systemPWSIDPopulation servedHealth-based · 5yrStatus
Iron Belt Waterworks MunicipalWI82601182112Returned to compliance

A public water systemis the regulated entity, not the city. EPA's SDWIS definition covers anything serving 25+ people for 60+ days a year or with 15+ service connections — that includes municipal utilities (City of Stockton), water districts, mobile home parks operating their own wells, schools, and small private subdivisions. Each system is independently monitored. Some systems serve multiple cities; some cities are served by many systems.

Equity context · ACS 2018-2022 · USEPA-clone EJ disparity

Who Lives In Iron Belt

Iron Belt, Wisconsin (Census place block groups): 174 residents. Why we surface this →

POPULATION SHARE
6.3%

Low-income

POPULATION SHARE
3.4%

People of color

POPULATION SHARE
1.1%

Under age 5

POPULATION SHARE
24.1%

Over age 64

Source: Census ACS 2018-2022 (5-year) + USEPA-clone EJ blockgroup stats (raw indicators + EJ disparity mirror).

Health context

Co-Located Health Indicators

Modeled adult-prevalence estimates published by CDC PLACES, paired with this city's pollution and demographic context. Comparisons are ecological, not causal — pollution and disease prevalence covary at the area level, but the data does not attribute any individual's diagnosis to local exposure. How this section works →

Adult asthma (current)

BRFSS 2023
10.4%
+0% vs Wisconsin mean+9% vs US mean

CDC PLACES · 2025 release · BRFSS 2022-2023

COPD prevalence

BRFSS 2023
8.1%
+1% vs Wisconsin mean+2% vs US mean

CDC PLACES · 2025 release · BRFSS 2022-2023

Coronary heart disease

BRFSS 2023
9.8%
+7% vs Wisconsin mean+7% vs US mean

CDC PLACES · 2025 release · BRFSS 2022-2023

Diabetes (diagnosed)

BRFSS 2023
13.7%
-6% vs Wisconsin mean-13% vs US mean

CDC PLACES · 2025 release · BRFSS 2022-2023

Frequent mental distress

BRFSS 2023
13.7%
+5% vs Wisconsin mean+4% vs US mean

CDC PLACES · 2025 release · BRFSS 2022-2023

PLACES uses BRFSS-modeled small-area estimates, not individual records. Crude prevalence shown above is the local rate as published; comparators are age-adjusted vs the Wisconsin mean and the US mean — both population-weighted across counties — so geographies with different age structures stay apples-to-apples. Sources: CDC PLACES · 2025 release · BRFSS 2022-2023.

Sources.