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MORRIS ENGINEERING & ASSOCIATES, INC. <br /> CONSULTING ENGINEERS <br /> Associated Pioine <br /> As part of our tank system integrity assessment we inspected the piping associated with the Rust Inhibitor tank <br /> following the guidelines presented in the California Code of Regulations, Chapter 15, Article 10, Section <br /> 66265.192. This observation included following the piping runs where they were visible to ensure that there <br /> were no signs of leaking and that the pipe was in good condition. Due to the layout of the piping we were not <br /> able to trace all of the piping runs,but we were able to see that, in general, the piping appeared to be in good <br /> condition. Our assessment of the piping consisted only of a general visual observation and did not include a <br /> leak test or a pipeline pressure test The piping in the general area of the Rust Inhibitor tank did not appear to <br /> be leaking, and the runs that were observable appeared to be contained within a secondary containment area. <br /> Piping that is not contained within a secondary containment should be inspected daily for leaks and equipped <br /> with an automatic shut-off device to prevent a hazardous spill should the system be switched to a Zinc- <br /> Phosphate solution. <br /> Both the Filter Press and the Heavy Metal Clarifier had all of their piping removed. If new piping is installed for <br /> these tanks,an additional certification must be completed an all associated piping before the tanks are placed in <br /> service. <br /> 1300 INDUSTRIAL ROAD, SUITE 14, SAN CARLOS, CA 94070, (650)595-2973 FAX(650)595-2980 <br /> Email:lee@morriseng.com <br />