Annual Reports
Damage Prevention
Wisconsin natural gas operators submit damages to their facilities to Pipeline and Hazardous Materials Safety Administration (PHMSA) annually. These can be viewed on PHMSA's page for
Wisconsin Damage Prevention Information. Operators submit additional data about their facilities which can be viewed on PHMSA's
Gas Distribution Annual Report.
Distribution Pipelines
The reports below contain data of all natural gas mains and services in Wisconsin for their respective years.
Inspections, Investigations, and Enforcement
Pipeline Safety
Wisconsin Pipeline Safety inspection, investigation, and enforcement dockets:
Pipeline Safety Dockets
One-Call Law
Wisconsin One-Call Law enforcement action history:
One-Call Enforcement Summary
Incidents
An incident is defined in
49 CFR §191.3 as a release of natural gas from an operator's system resulting in a death, a serious injury, significant property damage, significant gas loss, or a significant emergency event.
PSC Data
Starting in 2021, Wisconsin incident investigation data can be found in this spreadsheet:
Pipeline Incident Investigations
It includes investigations on possible incidents even if they do not meet the definition of an incident.
PHMSA Data
Incident data starting in 1986 can be found in this spreadsheet: Pipeline Incidents
PHMSA also collects and shares incident data on their
Pipeline Incident Trends page.
Maps
Natural Gas Utilities Service Areas
Wisconsin natural gas utilities service areas can be viewed on an Interactive Map.
Transmission Pipeline Map
The National Pipeline Mapping System
Public Viewer provides maps of natural gas and hazardous liquids transmission pipelines. Note: this does not include distribution mains or service lines.
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