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Page 2 of 2 <br />Subject: Verizon Facility - 430 W. Center Street, Manteca <br />Elana, <br />I spoke to you about 2 weeks ago and earlier about Verizon Telephone <br />Company's plan to replace an existing 500kW standby diesel generator with a <br />new one of identical capacity. Please see the attached architectural drawings <br />and Plumbing drawings. Attached are PDF files of the drawings for your review <br />and comment. Our drawings also have been submitted to the City of Manteca. <br />A brief description of our proposed work is below: <br />1. The existing generator enclosure has a very small day tank that <br />transfers the fuel between the generator and the existing double wall <br />underground tank. This day tank will also be removed along with the <br />generator and the enclosure. <br />2. The existing double wall fuel lines from the underground tank come <br />inside the enclosure in a vault/trench. <br />3. We will be constructing an enclosed metal cover at the trench/vault <br />where the existing fuel lines come through the ground and concrete side <br />wall of the trench/vault to keep rain water out. <br />4. This vault will have monitoring sensor for fuel leak. <br />5. New fuel lines will be connected to the (2) existing fuel lines, 1 supply <br />and 1 return, in the vault to be connected to a new 275 gallon outdoor day <br />tank that would transfer he fuel between the existing underground double <br />tank and the new generator. <br />6. The new fuel line which will all be above ground can be single wall <br />black iron pipes, as allowed by code. However, Verizon will likely decide <br />to install double wall pipes as indicated on the drawings. <br />7. The Plumbing drawings should indicate our intention to comply with <br />code required fuel leak monitoring. <br />8. There is an existing fuel polisher (filter) that has not been in use for <br />many years. This equipment will be removed and the fuel line between it <br />and the underground fuel tank will be removed. The vault/sump at the <br />underground tank where this fuel polisher fuel lines pass through to enter <br />the tank, the plumbing drawing requires the Contractor to plugged or <br />repair it to meet regulatory requirements. <br />Please call me or email me if you have any questions. <br />Thank you, <br />Wi%an S. Wong <br />JTC Architects, Inc. <br />65 N. First Ave., Suite 201 <br />Arcadia, CA 91006 <br />(0) 626-254-8884 <br />(M) 626-394-6530 <br />1/28/2015 <br />