Section 170.429 Unloading Operations

a)         The unloading hose from a tank truck into an underground tank shall have a static wire or its equivalent and shall be equipped with a non-ferrous nozzle or tight connection metal nipple.

b)         The driver, operator, or attendant of any tank vehicle shall not remain in the vehicle but shall not leave the vehicle unattended during the loading or unloading process. Delivery hose, when attached to a tank vehicle, shall be considered to be a part of the tank vehicle.

c)         Before unloading operations begin, the depositor shall determine the following:

1)         The facility has a Green Tag, issued by the OSFM, that is current and valid and in plain view.

2)         Any fill or remote fill that has a Red Tag, issued by OSFM, attached. Depositing into the associated tank is prohibited.

3)         The depositor shall determine the quantity of product that can be unloaded into each tank (i.e., the tank ullage) without overflow of product. The volume shall be logged with the facility owner/operator.  The log may consist of the bill of lading.

A)        Any overriding or tampering with an overfill device that may result in the overfilling of any tank is prohibited.

B)        The depositor shall inspect the fill device, prior to unloading, to assure that no tampering has occurred.  Before unloading may begin into a remote fill, the depositor shall ensure that all fill caps are secure and tight.

d)         When transferring Class I liquids, motors of tank vehicles or motors of auxiliary or portable pumps shall be shut down during making and breaking hose connections. If loading or unloading is done without requiring the use of the motor of the tank vehicle, the motor shall be shut down throughout the transfer operations of Class I liquids.

e)         Tank trucks and tank wagons used for the transport and delivery of Class I, II or III liquids shall not be parked for other than delivery purposes in residential districts, as defined in the Illinois Vehicle Code [625 ILCS 5/1-172].

f)          When unloading product into underground tanks equipped with tank vapor recovery equipment, the driver, operator, or attendant of the tank truck shall ensure that all vapor return paths are liquid and vapor tight to prevent the discharge of vapors at grade level.

g)         Smoking on or about any tank truck while unloading any flammable or combustible liquid is forbidden. Extreme care shall be taken during unloading operations to keep fire away and to prevent persons in the vicinity from smoking, lighting matches or carrying any flame or lighted cigar, pipe, or cigarette.

(Source:  Added at 27 Ill. Reg. 8164, effective May 1, 2003)