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1990-01-22_REVISION - M1988112 (3)
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1990-01-22_REVISION - M1988112 (3)
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Entry Properties
Last modified
6/19/2021 10:42:00 AM
Creation date
11/21/2007 5:40:40 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
M1988112
IBM Index Class Name
Revision
Doc Date
1/22/1990
Doc Name
SAN LUSI PROJECT PERMIT AMENDMENT FN M-88-112
From
STEFFEN ROBERTSON & KIRSTEN
To
MLRD
Type & Sequence
AM1
Media Type
D
Archive
No
Tags
DRMS Re-OCR
Description:
Signifies Re-OCR Process Performed
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",~- i <br />13.4 Miscellaneous Costs <br />Miscellaneous costs which are different than the approved , <br />include costs for collecting water samples and the cost of <br />additional water trucks to control tailings dust until reclamation <br />is completed. <br />Water Samales <br />Assume quarterly sampling far all surface and ground water sampling <br />locations. A total of 10 ground water sampling locations and six <br />surface water sampling locations will be monitored quarterly for five <br />years. Of these 16 sampling locations approximately 7' sites have <br />never had any measureable water for sampling (2 surface water sites <br />and 5 ground water sites) but are being included here. In addition, <br />for a period of two years after shutdown the flows from the drainage <br />collection system will be monitored monthly. <br />16 samples x 4 samples/year x 5 years x 5230/sample 573,600 <br />1 sample x 12 samples/year x 2 years x 5230/sample 56,520 <br />Total Water Sample Costs = 579,120 <br />Monitoring Well Abandonment <br />A total of 10 wells will need to be abandoned. <br />Average depth of the wells is 150 feet. <br />Well diameter is 4 inches. <br />To backfill the wells will require a total of 20 yd3 of concrete. <br />Delivered concrete price is E55/yd3. <br />555/yd3 x 20 yds3 = 51,100 <br />4 hours labor/well x ;5/hour x 10 wells 5200 <br />Total monitoring well abandonment costs 51,300 <br />L-5 <br />
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