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From: WESLEY DONOHO <br /> To: Wona.Jeff rEHDI <br /> Subject: Ahern Truck Stop <br /> Date: Monday,August 8,2022 8:42:22 PM <br /> Attachments: Ahen Maintenance guideline.docx <br /> modofiedcarbonfeed.pdf <br /> newpartspages.pdf <br /> CAUTION:This email is originated from outside of the organization. Do not click links or open attachments unless <br /> you recognize the sender and know the content is safe. <br /> Jeff: <br /> I have attached a .pdf file of the modified detail drawing of the tank layout for this facility. It now <br /> incorporates a mixer in the Post-anoxic tank for the carbon feed as suggested by the Orenco Engineers <br /> to better reduce the Nitrate levels. I have also attached a memo regarding the testing for the system as <br /> we discussed. The OM&M manual from Orenco also includes this information. The 3rd attachment is the <br /> parts list from the design package (pages 7 and 8)which now contain the Mixer information and the <br /> addition of 10 gate valves to be added to the pump assemblies for maintenance purposes. <br /> Please review them and advise. I have also sent the revisions to Orenco for there input. <br /> Thanks, <br /> Paul Donoho <br />