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MODIFICATION 03-2009 <br />Exhibit C - AMSO, LLC Notice of Intent Supplemental Information <br />BG ("B" Groove Monitor Wei (See Figure C.9-Amend 03-2009 in this section) • <br />• Drill 17" hole a minimum of 40 feet or until at least 5 feet of competent bedrock <br />is encountered. (Air or Air/Foam) <br />• Run 113/4", 47#, J-55 Surface Casing. <br />• Cement with "Neat Cement" to surface. <br />• Rig up diverter and wait on cement a minimum of 4 hours. <br />Drill out thru the surface casing with 10 5/8" diameter PDC bit. Advance drill <br />hole to 1140 feet and circulate a minimum of 30 minutes. <br />• Run 5 1/2", 15.5#, J-55 casing with a guide/float shoe. Mix and pump Type I or II <br />Portland cement with 2% bentonite via tremle in multiple lifts. Wait on cement <br />for a minimum of 12 hours. <br />• Trip in the hole with nominal 4 5/8" drill bit and drill cement and float shoe. <br />• Air drill to a Total Depth of --1180 feet. <br />• Circulate the hole for 30 minutes until formation water is observed. • <br />• <br />14