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Ms.Anne Olson,RWQCB• • December 28,2010 <br /> Work Plan for Diamond Pet Foods Impoundment Closure Page 3 of 4 <br /> Attachment A contains the Engineer's Estimate for the various facets of capping in <br /> place. The total cost of capping in place with native materials would be about $100,000. <br /> POSTCLOSURE MONITORING <br /> Once the vegetative cap is in place, it will be inspected regularly for damage or signs of <br /> stress, such as: <br /> • Stunted growth <br /> • Wilting <br /> • Color changes <br /> • Bare spots <br /> • Rills & gullies <br /> Acute deficiencies may appear during the first two winters after construction and <br /> potentially chronic deficiencies may appear thereafter. The vegetative cover will be <br /> inspected after each significant storm event during the first two winters, and damage, as <br /> needed, will be repaired as weather allows during the winter. In some cases, temporary <br /> repairs will be made during the winter and permanent repairs performed during the spring <br /> after the vegetative layer dries. During the first winters, efforts will be made to correct <br /> the cause of any acute deficiencies. <br /> During the second winter, locations of previous corrections will be inspected to ensure <br /> that they do not become chronic problems. During subsequent winters, locations of <br /> erosion will be staked during inspection and repaired prior to October 15 of each year. <br /> SCHEDULE <br /> We propose the following schedule: <br /> Submit specifications to RWQCB for review April 1, 2011 <br /> RWQCB review specifications April 2011 <br /> Bidding May 2011 <br /> Construction June through August 2011 <br /> Submittal of as-built report September 30, 2011 <br /> Note that construction will not require two full months of effort; two or three weeks <br /> should be sufficient time to complete the work. A range of dates is given to provide <br /> flexibility for scheduling. <br /> 003044.00 Lawrence&Associates <br /> W:ICLIENTYDiamond Pet FoodsW 10107.00-Ripon ROWDDiamondPet_Ripon_Impoundment_Closure.docx <br />