COMPLIANCE INFO_PRE 2019 - Laserfiche WebLink

Home Browse Search

• 0 HAZARDOUS WASTE TANK ASSESSMENT FINDINGS The waste oil tank (tank) is a double -walled tank manufactured in March 1999 by Containment Solutions, in accordance with Underwriters Laboratories design standards UL 142. The tank is made of carbon steel and the thickness of the primary and secondary tanks are unknown. The capacity of the tank is 1,000 gallons and the gross capacity of the secondary containment system is 1,100 gallons. The rectangular shape tank is situated horizontally, and located beneath a covered area outside the southeast comer of the fleet maintenance shop. The tank is located within a roofed area out of the way from traffic. At 3 locations along the bottom long side of the tank, three bolts secure the tank to a concrete slab. Waste oil is pumped pneumatically from inside the shop though wall mounted piping into the storage tank. There were no signs of defective piping, pumps or other ancillary equipment associated with the tank system. According to Mr. Rollin Hemenover, Fleet Maintenance Shop Manager, the pneumatic pumping system replaced an electric pumping system. During on site observations, the electrical pump wiring remained connected at the tank but according to Mr. Hemenover, the tank pump wiring was disconnected and deenergized at the electrical supply panel within the building. The tank is located in a high traffic area where fleet trucks are washed. At present no traffic bollards protect the tank. No emergency contact name and telephone number information was displayed on or in the vicinity of the tank. The tank is located within and adjacent to the truck wash facility. Within this facility, there is a drain within 10 feet of the tank that collects wash water which drains to an oil/water separator. Although adsorbent is present in a nearby trash can, no adsorbent "pigs" or other means of diverting and/or directing a potential tank spill away from the drain exist. There were no obvious weld cracks, seam cracks, scraps of protective coating or signs of corrosion associated with the tank noted during the on site visual observations of the tank. There were no apparent oil stains indicative of leaks or overfilling of the tank, or oil or oil stains within the secondary containment system noted during the on site tank assessment observations. The tank, secondary containment, piping, pumps or other ancillary equipment were considered to be in good condition, and the immediate area to the tank was neat and orderly. There were no cracks noted with the concrete pavement supporting the tank. Refer to Photograph Log, Attachment A. The secondary containment system does not have an automated leak detection system; however, the tank and secondary containment system are visually inspected daily and the inspections are documented accordingly. Hazardous Waste Oil Tank Assessment Report 2 NES, Inc, Waste Management, Inc. - Central Valley Waste Transfer Station NES Project Number 289.EC743.00 Lodi. California