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GENERAL39717
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Entry Properties
Last modified
8/24/2016 7:59:06 PM
Creation date
11/23/2007 10:19:23 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1996084
IBM Index Class Name
General Documents
Doc Date
2/7/2002
Doc Name
RESPONSE TO REQUEST FOR ASSISTANCE LORENCITO CANYON MINE C-96-084
From
DEPT OF PUBLIC HEALTH & ENVIRONMENT
To
DMG
Permit Index Doc Type
CITIZEN COMPLAINTS
Media Type
D
Archive
No
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STATE OF COLORADO <br />Bill Owens, Governor <br />Jane E. Norton, Executive Director <br />Dedicated to protecting and improving the health and environment o! [he people o(Colorado <br />4300 Cherry Creek Dr. S. Laboratory and Radiation Services Division <br />Denver. Colorado 80246-1530 8100 Lowry Blvd. <br />Phone (303) 692-2000 Denver, Colorado 80230-6928 <br />TDD Line (303) 697.7700 (303) 692-3090 <br />Located in Glendale, Colorado <br />hltp://www.cdphestatero.us RECEIVE D <br />FEB 0 7 2002 <br />Lorencito Coal Company <br />20500 Hwy 12 Division of Minerals and GealoAY <br />Weston CO 81091 <br />Re: Permit O1LA0642 modifications prior to final approval <br />pF C02p <br />~~ .. ,~ <br />~~ % o <br />o r <br />~ 1896 <br />Colorado Department <br />of public Health <br />and Environment <br />February 1, 2002 <br />AII2S ID: 07]-0071-002 <br />Permit Number: Ol LA0642 <br />Location: 3 miles west ofSegundo on State Hwy 12, Las Animas County, Colorado <br />To date the Division has received nine complaints of dust problems related to surface mining and <br />blasting activities at Lorencito Coal Company. In response to complaints received, the Lorencito facility <br />has been inspected on six different occasions to determine compliance with the terms of [heir construction <br />permit. Lorencito's dust control activities prior to blasting consists of watering the blast site prior to <br />detonation, however, wetting the top few inches of material has little impact on the dust generated when <br />several feet of rock material is detonated. Observations of Lorencito's recent blasting activities indicate <br />that dust emissions have decreased in comparison to the first blasts observed. However, variables such as <br />depth of detonation, blast location, and composition of material being detonated introduce many <br />uncontrolled variables affecting the generation of fugitive dust emissions. In an attempt to better control <br />unpredictable emissions and protect public and environtnental health, the Division is proposing to revise <br />the permit language in O1LA0642 to include the following fugitive control measures, in addition to the <br />control measures currently stipulated in the permit. The language specified in conditions numbers 1 <br />though 3 shall be incorporated into the fugitive dust control plan for permit O1 LA0642 during the permit <br />evaluation for final approval. <br />Blasting activities shall occur during daylight hours to verify compliance with the permit <br />conditions for <20°/n opacity and off property transport of fugitive dust emissions. <br />a. Daylight hours shall be specified as between sunrise and sunset <br />b. Blasting shall be scheduled to occur at least 15 minutes before sunset, to ensure sufficient <br />ambient light is available to conduct visible emission observations. <br />c. Verifiable sunrise and sunset times, from www.sunrisesunset.com or other reputable <br />resources, will determine compliance based on Lorencito's specific latitude and longitude. <br />
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