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Lyons Quarry <br /> 112d Reclamation Permit Operations Z <br /> Technical Revision <br /> ±220' <br /> Legend <br /> -Red Sandstone/Siltstone <br /> -- White Sandstone <br /> Dacde <br /> Rock Fill Berm,\ <br /> 20'min. <br /> w ; <br /> Rock Fill Be" <br /> w <br /> Reclaim Bench e25; <br /> J <br /> 20'min <br /> Note: Rock Anchor and Shotcrete <br /> required to support unstable <br /> wedges in the Dacite on this <br /> Optional Pond east southeast facing slope <br /> (No Blench Required) <br /> Rockfall Berm <br /> (without Pond) <br /> L <br /> Figure 1 - Kleinfelder Report - Template I, Section D'-D', (Kleinfelder, 2008) <br /> In place of the talus cover that is proposed in the current M-1977-141, Technical Revision#2 <br /> reclamation plan for slopes steeper than 2HAV, these slopes will be graded back to a minimum <br /> 2H-.1V slope, as shown in Attachment B. <br /> Excavated material from the Fountain Formation sandstone will be segregated into riprap or fill <br /> material onsite with the fill material either being sent to Quarry 2 for backfill or transported down to <br /> the swale at the entrance to Quarry 1. The riprap rock material will be sized, and the largest <br /> gradation will be used for the scour berm at the base of the quarry. Smaller riprap will be used for <br /> lining the drainage channels. If there are excess materials remaining after these features have been <br /> completed, a beneficial re-use of the material offsite could be assessed. Aggregate Industries and <br /> BCPOS have had active communication about the ability to re-use site materials specifically for <br /> municipal and State projects in the area around Lyons Quarry. If the material cannot be exported <br /> from the site, the spoils will be placed along a section of the eastern slope of the quarry as shown in <br /> the grading plan. <br /> March 2021 1 8 <br />