COMPLIANCE INFO_1985-1993 - Laserfiche WebLink

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attempting to leave while oil is still flowing into the tanks. It is estimated that spills due to operator carelessness would be less than 600 -gallons based on a flow rate of 300 gallons,, per minute -and a duration of two minutes. Spills resulting from.faulty equipment are expected to be less due to the pre- sence of the operator. A spill of the complete contents of the truck is considered to be highly unlikely. Spills during tank filling operations should be prevented or at least minimized due to the inspection and surveillance pro- cedures discussed later. In addition, tank filling operations will not take place during rain storms when practicable to minimize the spread of spilled oil. 011 spilled during tank filling operations would flow into Lindsay Street and then west to a storm drain at the inter- section of Hunter Street. If spilled oil entered the storm drain it would flow approximately two blocks and be discharged directly to a channel of the San Joaquin River. The San Joaquin River is considered to be "navigable01 waters. Therefore if a significant oil spill occurred, there is a high probability that spilled oil would enter the storm drain and flow into '°navigable" waters. f Permanent secondary containment of oil spilled during tank filling operations is not considered to be practicable as discussed under item 8 below. However, temporary secondary containment of oil spills will be provided. This will consist of a temporary low wall constructed around the oil fill pipe with oil absorbent materials. In addition, a sheet of synthe- tic membrane material compatible with oil will be placed over the storm drain and will be held in place by weights. 8. Practicality of Permanent Secondary Containment or Diversionary Structures Permanent secondary containment or diversionary structures are not considered to be practicable because they would impede and potentially cause a hazard to pedestrians on the sidewalk and vehicles in Lindsay Street. In addition, permanent secondary containment or diversionary structures would block the flow of storm water drainage on the sidewalk or in Lindsay Street. In the event a spill occurs, the contingency plan presented in Appendix A will be followed. 9. Inspections, Surveillance and Records Written procedures for inspection of oil storage and handling facilities and surveillance of tank filling operations are presented in Appendix B. Inspection and surveillance records will be prepared and signed by the appropriate supervisor or RKE736I1438539