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From: Joyesh Chandra [Jchandra@sjgov.org] <br />Sent: Wednesday, May 29, 2013 1:57 PM <br />To: Robert McClellon [EH] <br />• Page 1 of 2 <br />Cc: Jayna Rutz; Schneider, Eric A; Natalia Subbotnikova [EH]; Michael Carroll <br />Subject: RE: Handling ash -containing soil at Corral Hollow <br />Hello Robert <br />Thanks for your time on the phone discussing about the burn ash excavation at Corral Hollow <br />Landfill. Could EHD please confirm on the following scope of work regarding the excavation <br />work for the Closure Cap Extension Project before the Contractor proceeds further? The <br />Contractor plans to start the project's full excavation work on May 30th <br />Excavation Scope of Work <br />1. The soil with no burn -ash or refuse will be stockpiled on the west bank of the retention <br />pond by Corral Hollow Road. The stockpile will then be spread out and leveled. <br />2. The soil with large rocks and gravel will be stockpiled on the top west bank of the <br />retention pond and leveled as well. <br />3. The ash -laden soil will be stockpiled on a plastic sheeting, covered and then tested for <br />being hazardous or not. Based on the test results, the ash laden soil will be disposed <br />accordingly. <br />4. The aggregate base on the existing road will be scraped ,stockpiled and latter reused. <br />5. The vegetative cover and clay barrier within the excavation limits of the project will be <br />excavated, stockpiled and reused as vegetative layer for this project. <br />Please let me know <br />19ITM <br />JOYESH CHANDRA <br />SAN JOAQUIN COUNTY <br />PUBLIC WORKS DEPARTMENT <br />SOLID WASTE DIVISION <br />PH: (209) 468-3066 <br />Fax: (209) 468-3078 <br />From: Robert McClellon [EH] [mailto:RMcClellon@sjcehd.com] <br />Sent: Tuesday, May 28, 2013 8:36 AM <br />To: Michael Carroll <br />Cc: Joyesh Chandra; Jayna Rutz; Schneider, Eric A; Natalia Subbotnikova [EH] <br />Subject: RE: Handling ash -containing soil at Corral Hollow <br />Mike, please keep in mind that you already have information that indicates that the ash laden soil may be <br />hazardous. With that said it is important that you get all the sampling completed so that if the ash laden soil is <br />hazardous it is not onsite longer than 90 days from the accumulation start date. If it comes back non haz then time <br />frames are not applicable. When you do the sampling for the stock pile you will need to change your sampling <br />criteria. Your last results included a fish bio assay. That is not required for metals (generally speaking). If you <br />need guidance on this let me know. Robert <br />5/29/2013 <br />