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Page 1 of 1 <br />Oswald, Robert <br />From: Harold Luzar? <br />Sent: Thursday, June 12, 2008 4:37 PM <br />V/ Sent: <br />Oswald, Robert jZ S <br />A-L'tv',?j LPG G? <br />/K,- t9 81 - tW <br />Re: Responses to questions on tec. revision (TR-3) Neglected mine, permit # M-1981-165, <br />Pilot leaching process, your letter dated 3-14-08. <br />1-2). The quantity of these chemicals that will be used and stored will be a very small amount. <br />There will be no need for large quantities of stored chemicals because after the initial charge is made the <br />liquid containing the chemicals is re- used for each new batch of ore to be leached, as more (make up <br />water) is added it will only be a very small amount of chemicals added to keep the PH correct. <br />3). After studying the safety sheets for each of the chemicals, I will not be storing the chemicals <br />together in one location. All of the dry chemicals (alkalies) will be stored in our old type 2 explosives <br />magazine that will be used exclusively for these chemicals. The acids will be stored in the existing <br />flotation mill building, Inside of a metal, locked box. The floor of the mill building is concrete and <br />sloped to.a gutter that drains directly into the existing lined tailings pond. This building is secured and <br />dry. <br />4): We hope to run one 2000 lb. batch per day for a 5 day week for 14 weeks. Approx total volume <br />of tailings 28,000 lbs. If this pilot program is successful in recovering the metals from the ore it is <br />conceivable that we will add another primary mixing vat thus doubling the amount leached in each <br />cycle. <br />5). We will have on site the recommended standard spill kits for each chemical stored along with a <br />quantity of lime. <br />6). see map. Bob I will hand deliver a map to your office outlining -the requested info. <br />7). see the info. ref the liner and installation that was forwarded to you along with the comment letter <br />from our consultant. <br />JUN 2 3 2009 <br />Division of ier3G-kj'Bt'u". <br />Mining and Safety <br />Out, <br />OiviSio 19b <br />ir n of Re e <br />M 8 ancf s " <br />"fly <br />R4 <br />AJw <br />6/13/2008