TB 4

Question 1

TB 4 Gas tank truck and trailer rollover

Regulated by DOT through national highway traffic safety admin, bureau of carrier safety and office of hazmat

Answer 1

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Question 2

TB 4 Gas tank truck and trailer rollover

Primary responibility in this order

• life
• property
• environment

Answer 2

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Question 3

TB 4 Gas tank truck and trailer rollover

2 axle trucks store 3000 gallons
3 axle trucks store 5000 gallons

Answer 3

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Question 4

TB 4 Gas tank truck and trailer rollover

Tanks.

• longitudinal roll over protection along the top
• aluminum and are the thickest 3/16 inch on the bottom and gradually gets thinner.
• plumbing and valves for off-loading under tank
• manhole and vapor recovery valves on top.

Answer 4

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Question 5

TB 4 Gas tank truck and trailer rollover

Non pressure tanks.

• may have gas and diesel in same tank
• double bullkheads are used for different products with different flash points

Answer 5

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Question 6

TB 4 Gas tank truck and trailer rollover

Baffles
- do not remove plug; up to 200 gals of product may mix

Answer 6

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Question 7

TB 4 Gas tank truck and trailer rollover

Tanker incident- no leak

• full PPE’s
• monitor with combustible gas indicator
• examin tank for integrity
• pressure releif valves on tank: 3-5 psi. Dont expect bleve

Answer 7

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Question 8

TB 4 Gas tank truck and trailer rollover
Tanker incident- leak

• eliminate potential ignition source a minimum of 100 feet
• turn off ignition
• combustible gas indicators: check battery area: must be below 10LEL before disconnecting or disable battery
• set perimiters using monitors
• contain run off
• affected area, cover with foam and reapply as needed.
• IC needs to plan for appropriate amount of foam.

Answer 8

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Question 9

TB 4 Gas tank truck and trailer rollover

Tanker incident- vehicle fire or tire fire- no product fire

• handle like standard fire using 1 1/2 hose.
• cool tank and keep visible wet
• spot uphill and upwind
• fuel tank is secondary hazard

Answer 9

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Question 10

TB 4 Gas tank truck and trailer rollover

Tanker incident- fire involving spilled liquid or tanker

• May overwhelm the capabilities of first arriving fire units
• spot uphill and upwind
• secure water supply
• do not use plain water unless its to perform a rescue
• use foam lines
• dike to prevent product in storm drains
  IC must decide to use
• deffensive attack
• offensive attack
• or combo
• determain amount of foam concentrate, 15min with an additional 15 for maintenance blanket
• apply in a soft arc
• never flow water into tank, fire will spread

Answer 10

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Question 11

TB 4 Gas tank truck and trailer rollover

Storm drains

• initial defensive action; prevent products from entering storm drains (dike or cover)
• Contact appropriate agency
• monitor areas for explosive or pool flammable vappors
• Hazmat TF and squads enhance perimiter surveying

Answer 11

Reference