The scene
It is Tuesday, 10:15 in the morning, day shift at Perry Industries. A Tyrell Chemical Distributors tank truck, placarded CORROSIVE with 2672, is unloading Polyjuice Base, 25% ammonia solution, into tank T-2 at the ammonia unloading pad on the east side of Perry's Awesomeness Factory, Building B. A Perry operator is attending the delivery. The 3-inch unloading hose fails at the coupling on the truck valve. The driver hits the truck emergency stop. He was splashed on the face and neck and is standing by his cab. About 150 gallons are already on the curbed pad, running toward the sump, and the hose is still draining at the coupling. There is a strong ammonia smell at the pad. The operator has backed off to the west and is coughing. AD-4 is in alarm in the control room. It is 78 degrees, partly cloudy, with the wind out of the south at 8 miles an hour.
Scene facts
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When, where and what
| Day, time and shift | Tuesday, 10:15 a.m. Building B day shift. |
| Where | Ammonia (NH3) unloading pad, east side of Building B, next to the ammonia storage area. PI-B-101 grid C5. |
| Inside or outside | Outside. |
| What spilled (name on the label) | Polyjuice Base (ammonia solution, 25%), UN2672. Supplier: Tyrell Chemical Distributors. |
| What it was in | Tank truck, through a 3-inch unloading hose to the T-2 fill connection. |
| How much the container holds | Truck compartment: 3,000 gallons. T-2 holds 15,000 gallons. |
What happened
| Who was there and what they were doing | A Tyrell driver was unloading into T-2. A Perry operator was attending the delivery at the pad. |
| What happened | The unloading hose failed at the coupling on the truck valve. The driver hit the truck emergency stop. |
| How much is out | About 150 gallons on the pad. |
| Is it still leaking? | Yes. A steady trickle is still draining out of the hose at the failed coupling. |
| What it spilled on | Curbed concrete unloading pad (600 sq ft) with a sump in one corner. |
| Which way it is running | Across the pad toward the sump. |
The scene now
| What you see right now | Clear liquid across most of the pad. Strong, sharp ammonia odor at the pad. The operator backed off to the west and is coughing. AD-4 is in alarm in the control room. The truck is placarded CORROSIVE with 2672 on the placards. |
| Did anyone get it on them? | Yes. The driver was splashed on the face and neck. He is standing by his truck cab. |
| People on site right now | Building B: about 42 (day shift), including 6 ERT members, plus the Tyrell driver. Building A: about 18. Building C: about 24 plus drivers. |
| Weather and wind | 78 °F, partly cloudy. Wind from the south at 8 mph. |
| What is nearby | Storm inlet SI-1 just west of the pad. The flammable / oil unloading pad and the flammable tank farm to the north. The T-2 dike to the south. Spill kit SK-10 and water-fog monitor WM-1 southeast of the pad, toward the T-2 dike. Safety shower SS-4. Building B door B-6. The Building B access road and East Drive. |
| What has been done so far, and who has been called | The driver stopped the truck pump. The operator radioed the control room. |
Plans and SDS
These are the plans that apply to this scene. Read them to find what to do.
Maps
The red circle marks the spill. Tap a drawing to open it full size, then zoom in. The enlarged view has its own graphic scale in feet.
