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~ iii iiiiiiiuiiiiiii' <br />~,, <br />__ <br />26 June 1979 <br />,J Project No. 0057-24-02-01 <br />James L. Schmieding <br />~~' Reclamation Specialists <br />-~ Mined Land Reclamation <br />_. 723 Centennial Building <br />~ 1313 Sherman Street <br />Denver, CO 80203 <br />c;^ <br />.: <br />U <br />L <br />L <br />w <br />J <br />O <br /> <br />Z <br />Q <br />U <br />O <br />RE: Brownwood Pit File ?lo. 29-59. Response to a memo of June 18, <br />1979 from the Division of IJater Resources. <br />Dear Jim: <br />=; <br />~_~ <br />Y <br />L r <br /> <br />The only use of water in this mining operation will be for dust control, <br />within the immediate area of the extraction process. The haul road to <br />the extraction site will be asphalt to eliminate dust and reduce main- <br />tenance of vehicles. The pits will be wet pits, therefore, the only i <br />watering for dust control will be on dry areas within the pit that <br />lead to the haul road. There may be a slight loss of water due to <br />evaporation as the water is sprayed, but most of the water will return <br />to the groundwater table. Also, water will only be used for dust <br />control during exceptionally hot dry days during the summer. There- <br />fore, it is very hard to estimate the volume of water, but the operator <br />feels that on these dry days maybe 2000 gallons of water will be <br />sprayed within the pit area. If the Division of Water Resources did <br />require a well permit for this minimal water use, the operator would <br />be better off purchasing water from the City of Loveland since the <br />permit would probably be denied until a change of use for his irriga- <br />tion water could be obtained through the water court. The gravel from <br />the operation would be used strictly as road material, therefore, no <br />washing is required. The settling pond shown on Exhibit C is for <br />dewatering purposes only. ~ <br />There are approximately 17.2 acres of lake surface area planned at <br />this time. The mining and reclamation plans indicate 30.6 acres of <br />lake surface. Area 2 (19.4 acres) is planned as a landfill and if <br />approved and additional landfill area is needed by the City of Loveland <br />a technical revision will be submitted to the dined Land Reclamation <br />Board to use Area 4 (13.4 acres) as a landfill also. However, Area 2 <br />has not yet been approved by the Radiation and Waste Division of the <br />Colorado Department of Health. As a result, it can only be estimated <br />that 17.2 to 50.0 acres of lake surface will be exposed to evapora- <br />tion. Therefore, to estimate on amount of evaporation, the amount of <br />" ~, <br />x <br />I <br />=- <br />c ~ - <br />3 <br /> <br /> <br /> <br />