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• 0 Used Oil Storage Tank/ Containment Integrity Report -Inspection HMT Pape Machinery, Inc. May 5,2015 French Camp, CA Page 9 of 41 3.0 EVALUATION FOR CCR COMPLIANCE - USED OIL STORAGE TANK SUMMARY OF CA DTSC EVALUATION PER TITLE 22 CCR, Part 66264.191: Pursuant to Title 22, §66264.191 of the California Code of Regulations, the following highlights provide a summary evaluation of the major areas of concern regarding the aboveground Storage Tank under those regulations: 1. The primary design basis utilized in the construction of this Storage Tank is normal industry practice for horizontal aboveground storage tanks on structural supports. The ancillary equipment includes carbon steel and industrial grade flexible hose. 2. The products stored in the tank are used hydraulic and motor oils that are temporarily stored prior to routine removal and off-site recycling. 3. Corrosion protection measures directly applicable to the Storage Tank and the ancillary connections involve coatings on the tank and carbon steel piping (paint or material resistance to degradation). The walls of the tank that are in contact with the stored liquid are all of carbon steel construction resistant to corrosion from oil. The ancillary connections are made of resistant material such as carbon steel to protect against corrosion and industrial grade flexible hose compatible with the stored products. These materials continue to be resistant to the stored liquid based on current condition and age. 4. This Storage Tank and ancillary connections were all installed in 2006 and have been in operation since that time. The tank and connections show no evidence of deterioration at this time. If properly maintained now and into the future, the tank and connections should have a remaining useful life of 20 more years based on past history and current condition and calculated corrosion rates (ref. Tables B and D). The next inspection interval for the tank and connections has been established as five (5)year based on the need to verify continuing integrity of the material in contact with the stored liquid. 5. Flow into the tank comes through ancillary connections and is controlled manually using a pump located inside the Transfer Shed. This equipment is monitored visually at the unit by the operator. This equipment is suitable for continued service until the next out-of-service or maintenance cycle. L MAY 15 2 `ri NDTRPTNE.DOT REV 2 232-63333 Pape Machinery CA DTSC Used Oil Tank report rev2 5/15/2015 4:26 PM