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INSPEC12510
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INSPEC12510
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Last modified
8/24/2016 9:14:18 PM
Creation date
11/18/2007 8:56:13 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
M1977215
IBM Index Class Name
Inspection
Doc Date
11/18/1993
Doc Name
BULLDOG INSPECTION REPORT
From
HOMESTALK
To
DMG
Media Type
D
Archive
No
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s <br /> <br />The extreme conservatism in the PMP event for the Bulldog <br />Project is further evidenced in a discussion with Mr Nolan Doesken, <br />Colorado Assistant State Climatologist (Attachment B). In this <br />conversation Mr Doesken indicated that the largest recorded storm <br />in the vicinity of Creede occurred near the turn of the century and <br />the recorded amount was a inches in a 24 hour period. The PMP event <br />for the project area is estimated to be 16 inches, well above the <br />highest ever recorded event for this area. <br />Should the Bulldog site be hit with a storm event greater than <br />the 100 year, 24 hour event some channel erosion would be expected <br />to occur in both the constructed and native channels in the area. <br />Failure of the waste dump (considered unlikely) could temporarily <br />block the Windy Gulch drainage but no significant risk to human <br />health or property exists downstream from such a failure. Because <br />the Project was permitted for the 100 year, 24 hour event and the <br />diversion systems as constructed meet this requirement, Homestake <br />believes we have met our obligations to minimize disturbances to <br />the prevailing hydrologic balance of the affected land and <br />surrounding area (Rule 6.2 Mineral Rules and Regulations). The PMP <br />event should not be the design storm event for this project. <br />Acid -Base Accounting <br />Acid-Base accounting was conducted on a composite waste rock <br />sample from the Windy gulch waste dump as you requested. The <br />results of this testing are presented in Attachment C. As <br />interpreted by Dr Roman Pyrih, these results indicate that the <br />acid-neutralizing potential far exceeds the acid-generating <br />potential and no additional testing is recommended. These results <br />suggest that water quality should not be adversely affected by <br />water flowing through the constructed channel. <br />Road Reclamation Summarv <br />There are seven (7) major roads in the Bulldog project area <br />as illustrated on the figures in Attachment D and summarized below. <br />Area 1: Road to lower tailings impoundment, The road provides <br />access to the tailings impoundment and to the Millsite <br />patented claims in this area. The road will be left open at <br />a point below County Road 5041D to access these private lands. <br />Area 2: Road to upper tailings impoundment. Road will be <br />closed at a point prior to the junction with the County road <br />and at the access road east of the tailings impoundment. <br />Area 3: Road to 9700 level portal and waste rock dump. The <br />lower road goes to the toe of the waste dump and the upper <br />road goes to the 9700 level portal and supports the power <br />line. The upper road provides access to patented claims that <br />3 <br />
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