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.
The reports below contain data of all natural gas mains and services in Wisconsin for their respective years.
Investigations and Enforcement
Wisconsin Pipeline Safety investigation and enforcement dockets:
Pipeline Safety Dockets
Wisconsin One-Call Law enforcement action history:
One-Call Enforcement Summary
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.
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 also collects and shares incident data going back 20 years which can be found on their
Pipeline Incident Trends page.
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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