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Letter to Larry Perino Page 2 <br /> 11/20/90 <br /> as sheet wash. If vegetation becomes well enough established,these problems should <br /> become relatively insignificant. Once again,we do not recommend using the paper <br /> mulch. It is unfortunate that ProMac was not applied to the embankment surface prior <br /> to covering with soil. This fresh tailing is an ideal application for ProMac. At some <br /> point seepage from this impoundment will probably become acid. <br /> As always,I appreciate your allowing our continued involvement with your reclamation <br /> program. Once again I will emphasize my belief that the plot studies at Lake Emma are <br /> an important effort,not only for Sunnyside but for the industry. These types of studies <br /> are necessarily a long term proposition, and I hope we will be able to continue to <br /> monitor them in future years. Next year I hope I can come up in early to mid-August. <br /> Thanks again for your consideration. Please do not hesitate to give me a call if I can be <br /> of further service. Next time you're in Denver,I hope you will let me take you to <br /> lunch. <br /> Sincerely, <br /> <twul.� <br /> Thomas A. Colbert <br /> Vice President <br /> encl. <br />