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RECEIVED <br /> JUN 2 $ 2019 <br /> DIVISION OF RECLAMATION <br /> RPM,Inc. MINING AND SAFETY <br /> April 12,2019 <br /> Division of Reclamation, Mining and Safety <br /> Attention: Mr. Patrick Lennberg <br /> 1313 Sherman St. Rm 215 <br /> Denver, CO 80203 <br /> RE: Technical Revision to install an island in the southeast area of Pond 2, Grisenti Farms <br /> Gravel Pit,Permit No. M2001-005 <br /> Dear Mr. Lennberg, <br /> Enclosed is a technical revision(TR)for the Grisenti Farms Gravel Pit. Permit number M2001- <br /> 005. This TR is requesting approval to install an island in the southeast area of Pond 2,of the <br /> Grisenti Farms Gravel Pit. The small island will enhance wildlife habitat. <br /> The island will be backfilled(built)by adding material to the proposed location shown on the <br /> attached map. It is presently an elevated area in the floor of the mined out pit. We will raise the <br /> elevation so that it will be approximately 1 to 2 feet above the estimated ground water elevation <br /> once the pit fills with water. We will also seed the island with the approved seed mix prior to <br /> Pond 2 filling with ground water. Please note the location and indicated size are approximate. <br /> Please contact me if you have any questions. <br /> Respectfully, <br /> H. Bruce Humphries <br /> Regulatory Permits Management <br /> Consultant to Castle Concrete Co.,dba Castle Aggregates <br /> Encl: Technical Revision Application Form <br /> Location Map <br /> Technical Revision Fee, $216.00 <br /> RPM,Inc.,25049 E.Alder Dr.,Aurora,CO 80016 Phone:(303)854-74" Email:hlhu mph ries2(a comcast.net <br />