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COLORADO <br /> Division of Reclamation, <br /> ® Mining and Safety <br /> Department of Natural Resources <br /> January 2,2024 <br /> Roy and Sandy McLaughlin <br /> 82551 Hwy 92 <br /> Crawford, CO 81415 <br /> RE: Brandstadt Rock Pit(Permit No.M-1986-004),TR-02 Adequacy Review Letter <br /> Dear Mr.and Mrs.McLaughlin: <br /> Based on what we have discussed regarding the inability to grow crops on your site(the Brandstadt Rock <br /> Pit),I do not think it make sense to change the post-mining land use to General Agriculture. Also, 3.5 <br /> acres is too big,I think,to just be an area for storage of equipment. <br /> Therefore,you should revise the intent of the Technical Revision application(TR-02)in a letter of <br /> response to this adequacy review letter. Also,in your response you need to prove that the soil in that area <br /> is so poor that growing vegetation there is not practical. This should entail a report with details of <br /> methods and results from the analyses of soil samples. The soil samples should be analyzed by a soils <br /> laboratory. Please follow the guidance in the following list of actions as well as the enclosed document <br /> from the Natural Resources Conservation Service. <br /> 1. Samples should be taken every acre, at least. <br /> 2. The locations of the samples should be provided on a map. <br /> 3. The samples should include soil from the top 0"-6"of the soil column. <br /> 4. The samples should be taken as described in guidance from the NRCS. <br /> 5. In addition to the samples from particular locations, one composite sample should be created <br /> with small amounts of soil from each location. <br /> 6. Two or three samples should also be taken for adjacent undisturbed areas that have similar <br /> soil to the original permit area. These can be combined into a single composite sample. <br /> 7. The samples should be sent to a reputable soils laboratory. Local experts with NRCS, a <br /> conservation district, or other soil science group could be contacted to find a laboratory. <br /> 8. The laboratory should test all samples for the following parameters: <br /> o Nitrogen,phosphorus, and potassium (NPK) and other nutrients <br /> o Conductivity(salt level) <br /> o pH <br /> o Organic matter. <br /> OF LOCO <br /> 1� — <br /> 1313 Sherman St. Room 215 Denver, CO 80203 P (303)866-3567 F(303)832-8106 I " O <br /> Jared Polis, Governor I Dan Gibbs, Executive Director I Michael Cunningham, Acting Director <br /> '�1876�` <br />