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NOV-0.9-2001 FRI 0839 AM BANK~ID GESSO LLC FAX N0, 3034 8329 P, 03 Daryl and Joyce 8illinos. Mr. Billings has also raised concerns that obstruction of groundwater flow following the placement of a clay liner in the mining depression may occur. Records of the State Engineer show that Mr. Billin s does have a ep rmitted well close to_ the northern boundary of the area proposed for mining; however~State En ineer's records show that this well was ProPo-se ore ep Hof e into t e raga oe A uq Her• Mr. Billings' objection memo of September 4, 2001 also expresses a concern for possible contamination of deep aquifers, as a result of mining activity. His memo appears to express an overall concern for a well, located to the north of the area to be permitted but within a deep aquifer. In response to the concerns of Mr. Billings', the applicant has learned that, in the mid 1990s, a contaminant (DIMP) from the Arsenal was detected in shallow, unconsolidated groundwater, at concentrations below drinking water standards, in the area of the proposed mining location. Due to remedial efforts at the Arsenal, the distribution o}this contaminant is now receding. will only remove residual sand and thick, and it is i~ ~he_fiinge~Cthe_ArapahoeAquifer-Otheeep wells in this area go several hundred feet deep into the Laramie Fox Hills Aquifer. Besides the unliklihood that deep consolidated aquifers could be connected to shallow groundwater by mining activity, wells in those deep aquifers would also not be impacted by the clay-lined reservoir, which will sit on top of the bedrock. ma any such shallow well users are also connected to the S_o_uth Adams County Water and Sanitation District. The applicant will also escrow $10,000 for the purpose of rejuvenating any o} these wells which are physically damaged by mining activity. Although not stated in his memo of September 4, Mr. Billings has also raised a concern regarding increased truck traffic and the effect of such traffic on his rental property, located along 1241h Avenue, immediately north of the proposed mine. This concern was raised at a neighborhood meeting on October 3, 2001. Although CDOT has issued State Highway Access Permit No. 601141 to cover the use of the historical access to the site during mining, the applicant has also attempted to offer reasonable compensation to Mr. Billings, if his rental income is affected by mining. These efforts have been met only with rnunter offers, more opportunistic in nature than reflective o} a sincere negotiating position. If you have questions, please call me or Les Ewegen at 303.667-1666. Thank you for your interest and attention to this project. Very Tru Yours; Scot'1 Keen ~ ICR~_ Attachment Cc: Les Ewegen File - 1029