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<br /> <br />EPA UNITED STATES ENVIRONMENTAL PROTECTION AGENCY <br />WASHINGTON DC 20450 <br />PLUGGING RECORD <br />NAME AND ADDRESS Of PERMITTEE <br />Natural Soda, Inc. 3200 RBC 31, Rifle CO <br />81650 NAME AND ADDRESS OF CEMENTING COMPANY <br />Big 4 Cementing, LLC. P.O, Box 1817 Vernal, UT 84078 <br />Locale Well and Outline Unit on Section <br />Plat--640 Acres STATE <br />CO COUNTY <br />Rio Blanco PERMIT NUMBER <br />EPA CO 30358-00000 <br />N i I-,-~ ; Surface location description <br />NE %a of NW % of NW ~/a Section 35 Townshi 1S Ran a 98W <br />_ r I I <br />I I I I I I <br />I I I ~ Locate Well in two directions from nearest lines of quarter section and drilling unit <br /> 1 I I I I I ~ Surface Location 394 f[. from (N/S) N Line of quarter section <br /> -) and 977 ft. from (E/W) W line of uarter section <br />w e <br /> Describe in detail the manner in which the fluid was placed and the <br /> Type Of Permit method used in introducing it into the hole. <br /> ll Nu <br />CO 3358-04594 W <br />ll # lA-4H1 <br />W <br />b <br /> er <br />e <br />m <br />e <br /> ^ Individual <br />i lifslill l <br /> ® Area <br /> Number of Wells <br />1 CIdSS III <br /> Casin and Tubin Record after Plu in Well Activity Method of Emplacement of Cement Plugs <br />Size Wt (Lb/h) Put in Well (ft) Left in Well (ft) Hole Size <br />9-5/8 36# 60 ft 60 ft 12-1 /4 ^ Brine Disposal' ^ The Balance Method <br />7 in 23# 2349 ft 2349 ft 8-1 /2 ^ Enhanced Recovery ^ The Dump Bailer Method <br />5-1 /2 in 17# 2367 ft 147 ft 8-1 /2 ®Brine Injection ®The Two-Plug Method <br /> Lease Name Natural Soda Inc Well Number lA-4HI <br />Cementin to Plu and Abandon p ata: Plu #1 Plu #2 Plu #3 Plu #4 Plu #S Plu #6 Plu #7 <br />Cementin Date 8/23/04 <br />Size of Hole or Pi a in which Plu Placed (inches) 7 inch 7 inch 7 inch <br />De th to Bottom of Tubin of Drill Pi a (ft.) 2200 1910 <br />Sacks of Cement Used (each lu) CIBP 40 250 <br />Slur Volume Pum ed (cu. ft. ) 46 472 <br />Calculated 7o of Plu (ft.) 2000 SUrfdCe <br />Measured TO of Plu (if [a ed frJ 2210 ft 1940 SUrfdCe <br />Slur W[. (Lb. Gal.) 1 5.8# 12.4# <br />T eCement CIdSS G CIdSS ~i <br /> List all O en Hole and/or Perforated Intervals <br />From To From To <br /> <br /> <br /> <br /> <br /> <br />Signature of menter or Authorize Representative Signature of EPA Representative <br /> <br />