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wood. The materials used in the construction of the tank, pump, and piping system are consistent with industry standards and compatible with the waste antifreeze handled by the tank system. Chemical compatibility findings: The materials identified above are compatible for contact with or proximity to the equipment, tank, or tank system ini assessment. Initials: ?0 Visual Observations 66265.192(k)(9)(A-D): Holt employees inspect the tank system and containment on a daily basis during normal operations. Tank parameters at time of inspection (empty, etc.): The tank was approximately 1/8 full at time of inspection. Acute visual evidence of leaks: None observed Condition of interior surface: Interior surface visible through manway; relatively clean with no signs of etching or degradation. Condition of exterior surface: No weld cracks, breaks, scrapes, or corrosion were observed. No structural damage or inadequate construction or installation was observed (no cracks, punctures, or damaged fittings). Condition of nozzles, flanges, fittings at tank: There are no nozzles, flanges, or fittings on the tank. The 5-inch vent cap is functional and the threaded lid is in good condition. Condition of piping: The hose pipes are in good condition. Visual observation findings: Visual observation of the tank and its affiliated pumps, piping and ancillary equipment did not reveal signs of leaks, corrosion, weld cracks or breaks, or scrapes in protective coating which may cause a release from the tank system. A description of all discrepancies notedrin the visual inspection is included with this report. Initials: Seismic/Anchoring: (a I I Seismic/dynamic/hydrostatic load calculations provided with "Hydrostatic and Seismic Analysis" page or as Attachment 3. A manufacturer's tank drawing is also included. Based on a review of the San Joaquin County Flood Zone Viewer (http://simap.org/floodzoneviewerNiewer.asp) for Parcel ID 16337015 (1521 W. Charter Way), the tank site is located in FIRM Panel 06077C0470F, Zone X(LEVEE). There is a chance of flooding 1% annually or once every 100 years, with average depths shallower than 1 foot (or with drainage areas less than 1 square mile). The area is protected by levees from the 1% annual, or once every 100 years, flood, so it will not flood deeper than 1 foot once every 100 years. It is in an area where there is a chance of flooding 0.2% annually or once every 500 years, with water deeper than 1 foot. See Flood Zone Viewer map in Wood Environment & Infrastructure Solutions, Inc. 275 Gal. Waste Antifreeze Tank