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wood. <br /> Specific Gravity: 0.88 to 0.94 <br /> Operating Capacity: 1,000-gallons <br /> The materials used in the construction of the tank, pump, sump table, and piping <br /> system are consistent with industry standards and compatible with the used oils <br /> handled by the tank system. <br /> Chemical compatibility findings: The materials identified above are compatible for <br /> contact with or proximity to the equipment, tank or tank system in this assessme t f -D <br /> Initials: �� <br /> Visual Observations 66265.192(k)(9)(A-D): <br /> Holt employees observe the tank system and containment on a daily/weekly <br /> basis during normal operations as documented on visual inspection forms <br /> maintained at the facility. <br /> Tank parameters at time of inspection (empty, etc.): The tank was <br /> approximately one eighth full at time of the site visit. <br /> Acute visual evidence of leaks: None observed <br /> Condition of interior surface: Not accessible, flash photos taken down a <br /> secondary vent access and the extraction port show minimal signs of rust. World <br /> Oil Environmental Services empties the tank on a weekly basis. <br /> Condition of exterior surface: The ConVault tank and sump table were <br /> repainted in late 2009. The tank top surface is oil stained around the extraction <br /> port and the paint is weathered. Hairline cracks were observed in the concrete <br /> encasement but no visible evidence of cracks that would be representative of <br /> tank system failure. No scrapes, cracks, punctures, or damaged fittings were <br /> observed. No weld cracks or breaks were observed on the sump table. <br /> Condition of nozzles, flanges, fittings at tank: The emergency vent (6-inch) is <br /> functional, and ports/fitting (2- and 4-inch) are in good condition. A direct reading <br /> Krueger Sentry Gauge appears to be functional. <br /> Condition of piping: The galvanized pipe and flex hose are in good condition. <br /> Visual Observation findings: Visual observation of the tank and its affiliated pumps, <br /> piping and ancillary equipment did not reveal signs of leaks, corrosion, weld cracks or <br /> breaks, or scrapes in protective coating which may cause a release from the tank <br /> system. A description of discrepancies noted during the visual inspection is inclu d <br /> with this report. Initials: <br /> Seismic/Anchoring: <br /> Seismic/dynamic/hydrostatic load calculations provided with "Hydrostatic and <br /> Seismic Analysis" page or as Attachment 3. A manufacturer's tank drawing is <br /> also included. <br /> Based on a review of the San Joaquin County Flood Zone Viewer <br /> (http://simaporq/floodzoneviewer/Viewer.asporq/floodzoneviewerNiewer.asp) for Parcel ID 16337015 (1521 W. <br /> Charter Way), the tank site is located in FIRM Panel 06077C0470F, Zone X <br /> (LEVEE). There is a chance of flooding 1% annually or once every 100 years, <br /> with average depths shallower than 1 foot (or with drainage areas less than 1 <br /> square mile). The area is protected by levees from the 1% annual, or once every <br /> 100 years, flood, so it will not flood deeper than 1 foot once every 100 years. It is <br /> Wood Environment & Infrastructure Solutions, Inc. 1,000 Gal. Waste Oil Tank <br />