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PERMFILE73240
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PERMFILE73240
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Entry Properties
Last modified
8/24/2016 11:22:52 PM
Creation date
11/21/2007 12:37:54 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
M1983194
IBM Index Class Name
Permit File
Doc Date
5/19/2003
Doc Name
Status and Options for Subsidence Monitoring Well 2M-TDR
From
Natural Soda Inc.
To
DMG
Media Type
D
Archive
No
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<br />later we will be in a better position to respond with a demonstrated technology at 2M-TDR if <br />and when the need azises. <br />Alternate SMW to be considered include; <br />1. Cased slim hole for gamma logging with/without radioactive tracers at joints and 5 feet <br />sections at bottom, no TDRs. <br />2. Similaz completion to 2M-TDR, 4 TDR cables and cemented tubulaz. The tubular <br />installed with DV tools (Requires lazger diameter hole and Iazger tubular cemented in <br />the hole) to cement between the A and B Grooves and above the A-Groove. The tubular <br />is cemented in place to provide access for gamma logging and inspection of damage to <br />the tubulaz resuhing from ground movement above the cavern. <br />3. Drill, case and cement hole to within 100 feet of the R-6/L-6 wntact, drill out at bottom <br />to 45 feet above Dissolution Surface, install thin tubulaz (2 inch) with 4 TDR cables as <br />in 2M-TDR and squeeze cement to 50 feet above the casing. With this option the upper <br />portion of the TDRs are not grouted and this allows replacement of the TDRs (by <br />drilling out the bottom of the hole) if the cables malfunction. <br />All SMW options include an open case hole with 5 foot sections on the bottom and possibly <br />radioactivity spacers at the joints for access for gamma logging and for observation of breaks in <br />the casing (caliper or down hole viewer.) <br />Natural Soda Inc. requests approval to proceed with options 1. Monitor TDR-3 at 2M-TDR, and <br />2. Design alternative SMW for later in 2003. <br />If there aze any questions please contact Plant Manager Kyle Bazbot or me. <br />Sincerely, <br />~~~ <br />Ed Baker, REM <br />EHS Manager <br />CC: BLM <br />:EPA <br />
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