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- `7 ~~ 826 21'/2 Road <br />_(`~- Grand Junction, CO 81505 <br />"1"' ~~ ~ T: 970.263.7800 <br />~~~~~~~ "~~~ ~,~~; F: 970.263.7456 <br />®~~ ~ ~ ~U~~ti~oc~. <br />ptvision ~~ end ~~ ec~1 _ e ~ <br />~I-in~n9 R ~ ~ ~ a/ <br />December 21, 2007 <br />DEC 2 0 2007 <br />Division of Reclamation, Mining and Safety GRAND JIiNCI"ION ~=dELD OFFICE <br />Grand Junction Field Office <br />DIVISION OF <br />Attention: Travis Marshall ~ RECLAMATION MINING & SAFETY <br />101 S. 3~d Street, Suite 301 <br />Grand Junction, CO 81501 <br />Re: Clarification on Seed Mixture Rates and Costs, Circle Dot Quarry, 110 C Application No. <br />v1~1-2007-067 <br />Dear Mr. Marshall: <br />In response to the reclamation costs estimate provided in your letter dated December 19, 2007, <br />this letter provides some clarification on the seed mixture application rates and costs provided in <br />that estimate. The issues that require clarification are outlined below: <br />• The application rate for Pubescent Wheatgrass -Luna should be 1.07 Ibs/acre to be <br />consistent with the information provided to DRMS previously. <br />• The application rate for Regreen 404 should be 2.21 Ibs/acre to be consistent with the <br />information provided to DRMS previously. <br />• The cost/pound for Regreen 404 should be approximately $4.75/pound (see enclosed <br />documentation), resulting in an estimated cost /acre of $10.50/acre, instead of the <br />$3,025.00/acre indicated in the DRMS estimate. <br />• Also note that when the changes in application rates indicated above are made, the <br />application rate for the entire seed mix will be approximately 14.5 Ibs/acre, which is <br />consistent with the information provided to DRMS previously (see letter from B. Danforth <br />to T. Marshall dated December 12, 2007). Also note that the estimated total cost of <br />reseeding provided in the December 12, 2007 reflected the estimated cost including the <br />entire seed mix and the application of the seed, including labor and equipment, and did <br />not reflect just the estimated cost of Regreen 404. <br />If you have any questions or require additional information, please contact me at 970-263-7800. <br />Sincerely, <br />~ ~- <br />D D nison <br />Assoc' to Geologist <br />cc: Amy Stoodt, Marathon Oil Company <br />Cordilleran Compliance Services, Inc. <br />Grand Junction, CO • Denver, CO <br />Environmental Consulting Engineers and Scientists <br />