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For the Poly Tank System: <br /> 1. The poly tank will be filled to the top. The tank cannot be filled above the top or fluid would flow out of the J- <br /> pipe vent there. <br /> 2. No additional fluid will be allowed to enter the tank via the conveyance piping from the steam cleaning room <br /> and a sign will be posted in the room to that effect. <br /> 3. The level of fluid in the poly tank will be automatically measured by the level indicator located beside the tank, <br /> and a date-and time-stamped photo will be taken for documentation. <br /> 4. At least 24 hours later, the level of the fluid in the poly tank will be read off the level indicator, and a date-and <br /> time-stamped photo will be taken for documentation. <br /> 5. Two fluid level readings over a 24-hour period will verify the poly waste tank does not leak. <br /> 6. The PVC pipe that conveys oily water from the steam room to the poly tank is considered inherently leak proof <br /> because: <br /> a. It is open to the atmosphere and therefore under no pressure. <br /> b. It is located above the tank and conveys fluid by gravity and is only ever partially full. <br /> The results and documentation of the additional leak detection testing will be provided in a letter report to SJCEHD. <br /> Thank you, <br /> Karen <br /> Karen Petryna, PE,QSD/QSP I A GHD Senior Project Manager <br /> US West Region <br /> GHD <br /> Proudly employee owned <br /> T: +1559 476 5763 1 M: +1559 545 5040 1 E: karen.petryna@ghd.com <br /> 30 River Park Place West Suite 220 Fresno CA 93720 USA I www.ghd.com <br /> Connect <br /> WATER I ENERGY& RESOURCES I ENVIRONMENT I PROPERTY& BUILDINGS TRANSPORTATION <br /> Please consider our environment before printing this email. <br /> From: Florido, Elianna <eflorido@sigov.org> <br /> Sent: Wednesday,April 22, 2020 11:56 AM <br /> To: Karen Petryna <Karen.Petryna@ghd.com> <br /> Cc: Bill Boscacci <Bill.Boscacci@o-i.com> <br /> Subject: Owens-Brockway Glass Container,Tracy:Tightness Testing Used Oil and Poly Wastewater Systems <br /> Hi Karen, <br /> I hope this email finds you well. <br /> I reviewed the tank assessments you submitted for Owens-Brockway's used oil tank system and the poly wastewater <br /> tank system, and have a question regarding the tightness testing performed on both tank systems. <br /> Can you demonstrate how the tightness testing performed covers both of the tank systems entirely, since it appears that <br /> the tanks were only partially filled with their respective wastes when tested? <br /> Thank you, <br /> 3 <br />