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:.. ~.` ~, <br />S.Blasting Concerns <br />The proposed dolomite quarry is located in a well traveled but mostly uninhabited <br />area. The nearest inhabited dwelling is located in Monarch Townsite, 1320 feet <br />northwest from the nearest point to the proposed permit area. The hamlet of <br />Garfield, which also has several inhabited dwellings is about 12,000 feet to the <br />northeast of the project area. The nearest uninhabited structure which does not <br />belong to Colorado Lime Co., is located at the Madonna Mine, about 2,000 feet <br />southwest from the proposed permit area. These buildings are used for equipment <br />storage by Monarch Ski Resort. We know of no threatened or endangered animal <br />species which live in or near the project area. <br />The inhabited dwelling which is 1320 feet northwest of the proposed permit area <br />is owned by Ms. Gloria Brown. This building was owned by a different person, <br />but never the less was inhabited during previous mining operations at the site by <br />CF&I Steel Co. <br />Historic Data <br />The Monarch Quarry was operated for about 60 years by CF&I Steel Co., prior to <br />it's shut down in the mid 1980's. Communications with Mr. Curtis Millar, CF&I's <br />Quarry Superintendent indicate that there were no complaints of record <br />concerning damage from CF&I's blasting operations at the quarry, during his <br />nearly 1 U year tenure there. During that time period, local residents lived both in <br />Monarch Townsite and in Garfield. <br />Mr. Millar reports the following general parameters for blasting at both the upper <br />and lower quarries, during his tenure at Monarch Quarry. <br />UPPER QUARRY <br />Lbs. Explosive <br />Burden/Spacing <br />Blasthole Depth <br />Powder Factor <br />Delay interval -holes <br />Delay interval -rows <br />Decay interval -decks <br />Charge wt.(delay int <br />Stemming <br />Charge Initiation <br />55,000 - 65,000 lbs. <br />20/22 <br />35 <br />0.5 Ibs.lton <br />LOWER QUARRY <br />30,000 - 40,000 lbs <br />16/18 <br />35 <br />0.5 ]bs./ton <br />50 ms 50 ms <br />100 ms 100 ms <br />25 ms ZS ms <br />350 Ibs 35016s <br />6-Sft. 6-8ft. <br />50 grain primacord with caps <br />During Mr. Millar's tenure at the quarry, production averaged 300,000 tons per <br />year. This necessitated 1 to 3 blasts per year. Colorado Lime Co. anticipates that <br />annual production will be less than CF&I's production was, at least during the <br />