Section 170.80  Unloading Operations

a)         Unloading hose from tank truck into 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 driver shall determine the quantity of product which can be unloaded into each tank without overflow of product and log the results with the station owner-manager.

d)         When transferring Class I liquids, motors of tank vehicles or motors of auxillary 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 Ill. Motor Vehicle Code (Ill. Rev. Stat. 1983, Ch. 95½ par. 1-172).

f)          When unloading product into underground tanks located at service stations which are equipped with tank vapor recovery equipment, the driver, operator, or attendant of the tank truck shall ensure that all vapor return paths are effectively made 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:  Amended 9 Ill. Reg. 9514, effective October 1, 1985)