Gas Explosions in Pennsylvania: Utilities, Contractors and the One Call System

The one call system

Pennsylvania law requires excavators to notify the one call system before digging, and utilities to mark their facilities within a defined period. Both sides of that obligation generate records.

The questions in a strike case are documentary rather than speculative:

• Was the notification made, and when?
• Did the utility mark accurately and within the required time?
• Were the markings still visible when work began?
• Was hand digging used within the tolerance zone around marked facilities?
• Was the strike reported immediately?

Odor complaints are the other pattern

Where someone reported a gas smell and the response was slow or inadequate, the utility’s call log and dispatch records establish the timeline. Response time is measurable, and utilities have defined obligations once a report is made.

If you or a neighbor reported a smell before an incident, say so immediately, because that call is recorded and it changes the case entirely.

Who may be responsible

• The utility, for the condition of its mains and services, for marking, and for its response to reports.
• An excavation contractor, for striking a marked line or failing to notify.
• A plumbing or heating contractor, for defective installation or a failure to test.
• A property owner or landlord, for known defects and for appliance maintenance.
• An appliance or component manufacturer, where a fitting or regulator failed.

Preserve the scene

Explosion scenes are cleared for safety reasons quickly, and utilities move rapidly to secure and sometimes replace their infrastructure. Physical evidence, including the failed section of pipe or the fitting, can disappear within days.

An immediate preservation demand covering the excavated section, the appliance, the regulator and any replaced components is one of the highest value early steps in these cases.

Injuries and their pattern

Blast injuries combine burns, blunt trauma, hearing damage and inhalation injury, and hearing loss is routinely under-documented amid more visible injuries. Ask for audiometric testing and have it recorded.