Product Delivery/Transfer Monitoring Procedure
1. Receive Notice of Delivery/Transfer: Depending upon the type of facility you own or operate, the delivery/transfer operator must notify the on-site Class C operator of their arrival and intent to make a delivery/transfer to one or more of the USTs located at the facility.
2. Verify Product Volume (for tanks that receive transfers greater than 25-gallons): The Class C operator should verify that the delivery/transfer operator measures the volume of product contained in the UST into which product will be transferred. This must be done BEFORE connecting the transfer hose to the connector on the fill riser of the tank. The volume of product contained in the tank is measured to determine the volume available (the ullage). The available volume or ullage must be greater than the volume of product to be delivered/transferred to ensure that the tank will NOT be filled to more than 90% of its maximum capacity. View an example.
3. Determine Tank Max Capacity: The delivery/transfer operator must know the maximum capacity of the tank into which the delivery/transfer will be made. If the delivery/transfer operator does not have this information he or she must obtain it before beginning the delivery/transfer.
4. Ensure Hose Connections: The Class C operator should verify that the delivery/transfer operator has connected all applicable delivery/transfer hoses and Stage I vapor recovery hoses (if applicable) between the delivery/transfer vehicle and the UST prior to beginning the delivery/transfer.
5. Ensure Continuous Monitoring: The Class C operator should verify that the delivery/transfer operator is monitoring the delivery/transfer at all times during delivery/transfer process.
6. Ensure Overfill Alarm Status: The Class C operator should know the location of any on-site overfill alarm systems (audio and visual alarms) and be able to describe their operation and location to the delivery/transfer operator.