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2013-04-19_REPORT - C2009087 (7)
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2013-04-19_REPORT - C2009087 (7)
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Entry Properties
Last modified
8/24/2016 5:19:41 PM
Creation date
4/23/2013 9:57:02 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C2009087
IBM Index Class Name
REPORT
Doc Date
4/19/2013
Doc Name
2012 Testing For revegetation Success for Phase III Bond Release Year One of Two
From
Peabody Sage Creek Mining, LLC
To
DRMS
Permit Index Doc Type
Reveg Monitoring Report
Email Name
JDM
DIH
Media Type
D
Archive
No
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Evaluation Parameter <br />Phase III PSM BRB -2 <br />Reference Areas <br />Quantitative Cover Sampling <br />Min. 15 samples <br />(and to adequacy *) <br />Min. 15 samples * <br />Quantitative Production <br />Sampling <br />Min. 30 samples * <br />Min. 30 samples <br />Woody Plant Density Sampling <br />— Background <br />Min. 30 samples * <br />NA <br />Woody Plant Density Sampling <br />— Concentration Areas <br />Min. 50 samples * <br />NA <br />Species Density Sampling <br />Min. 15 samples <br />Min. 15 samples <br />Success Demonstration <br />Approach <br />Hypoth. Testing for cover, production <br />and woody plant density; 3 of 4 <br />specified tests for species diversity <br />NA <br />INTRODUCTION <br />Quantitative sampling of reclaimed and reference areas at Peabody Sage Creek Mining, LLC., Peabody <br />Sage Creek Mine (PSCM) was undertaken in July 2012 by ESCO Associates to provide data for formal <br />testing of Revegetation Success in application for Phase III Bond Release. These 2012 data would be <br />the first of two years' data needed to comply with CDRMS bond release testing requirements. Methods, <br />sample areas, and sample sizes were those specified in a study plan submitted by Peabody to Colorado <br />Division of Minerals and Geology (ESCO 2005b) for bond release testing on the same lands when they <br />were part of the Seneca II Mine permit area. <br />METHODS <br />Phase ill Bond Release Block (BRB) PSCM -2 Sampling <br />The 422.6 acres of BRB PSCM -2 (formerly Seneca II BRB 4) includes several reclamation parcels <br />seeded from 1997, 1998 and 1999 as well as several parcels seeded in 2002 -2003. In addition, this BRB <br />includes parcels interseeded as part of normal husbandry in 2006. Sample area locations are shown on <br />Map 1, "Vegetation Monitoring Locations - 2012 Phase III BRB PSCM -2." <br />Reference Area Sampling <br />The Mountain Brush and Sagebrush Reference Areas were sampled to provide cover and production <br />data for comparison with reclaimed area data as per permit provisions. Reference Area sampling <br />locations are shown on Map 2 "Vegetation Monitoring Locations — 2012 Mountain Brush and Sagebrush <br />Reference Areas." <br />Summary of Sampling Design <br />* Or to fifty samples or use of upper 90% confidence limit after 15 samples <br />1 <br />
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