accident investigation report: woodbridge gas leak
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Post on 26-Jul-2016
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DESCRIPTION
Report issued following an explosion in a home in Woodbridge, Va., on Feb. 7 2016. The accident was traced to a leaky gas pipe. As a result, Washington Gas will be replacing 800 gas lines in the area.TRANSCRIPT
State Corporation CommissionDivision of Utility and Railroad Safety
FRANKLIN STREET ACCIDENT
STATE CORPORATION COMMISSION
The Virginia Constitution of 1902 created the Commission to regulate railroads and telephone and telegraph companies.
Since then, the Virginia General Assembly has broadened the Commission’s authority and responsibilities in many areas.
2
The Division of Utility and Railroad Safety assists the SCC's three Commissioners in administering safety programs involving natural gas, and hazardous liquid pipeline facilities, railroads, and underground utility damage prevention.
DIVISION OF UTILITY AND RAILROAD SAFETY
GAS AND HAZARDOUS LIQUID INSPECTION ACTIVITIES
2015
1,554 Pipeline Safety Inspections• Construction• Facilities• Records• Programs
1,120 Pipeline Damages Investigated
Call before you dig.
Allow required time for marking.
Respect the marks.
Excavate carefully.
ACCIDENT AND INVESTIGATION OVERVIEW
APPROXIMATE TIMELINEFEBRUARY 7, 2016
3:03 PM - Fire Department received a call of gas odor in the area3:08 PM - Fire units arrive.3:17 PM - Washington Gas notified by the fire department.3:27 PM - Fire Department detected gas in the area and began evacuations.3:31 PM - Washington Gas first responders arrived3:32 PM - Explosion at 14100 Franklin Street
APPROXIMATE TIMELINEFEBRUARY 7, 2016 (CONT.)
4:43 PM - SCC Staff notified by Washington Gas4:47 PM - Staff responded.5:59 PM - Staff arrived on site.
CORROSION
Soon after the accident, corrosion was discovered on the abandoned copper service line to the accident location. Two other service lines in the area were also found with leaks.
2329 W. Longview
Drive
14100 Franklin Street
2327 W. Longview
Drive
INVESTIGATION• SCC Staff monitored Washington Gas’ response and their work
during the initial make safe activities.
• I interviewed witnesses and homeowners in the immediate area.
• Staff has requested and received numerous records from Washington Gas including but not limited to cathodic protection inspections, leak records, leak repair data, mapping, construction records, work orders, etc.
• Staff has requested records and reports from Prince William
County Fire Marshal and Development Services.
• Our investigation is ongoing and our inspections of Washington Gas and their contractors continue in the area.
