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m~~ <br />~ <br />AmerAlia Inc. 5 <br />818 Taughenbaugh Blvd. <br />Rifle, Co. 81650 <br />July 1Q 2000 <br />Mr. James Cagney <br />Bureau of Land Management <br />73544 Hwy 64 <br />Meeker CO 81641 <br />Mr. D. Edwin Hogle <br />Director, Groundwater Program <br />UIC Implementation Program <br />U.S. EPA <br />999 18"` Street, Suite 500 <br />Denver CO 80202 <br />/Mr. Allen C. Sorenson <br />Reclamation Specialist <br />Division of Minerals and Geology <br />1313 Sherman St., Room 215 <br />Denver CO 80203 <br />Subject: AmerAlia Rock School Project <br />Bedrock Aquifer Monitoring Wells <br />June 28, 2004 Purging and Sampling Report <br />Dear Sirs: <br />AmerAlia submits the following June 28, 2000 field activity report to provide a better <br />understanding of the monitoring well purging and sampling procedure. Roger Day, Amold <br />Markley and George Scatrow purged the wells. Gerry Daub collected the samples. <br />MWA-2 <br />An Izuzu SS hp compressor was connected to the 1.9" steel tubing wilt end point depth at 475 <br />feet at 11:14 am. A 68" dia, by 24" tall stock tank was used to measure well discharged water. <br />The calculated tank volume was 16 gallons per inch. The initial well flow rate filled the tank in 5 <br />minutes or 77gpm. (24"' 16g/ft=384 gallons in 5 minutes) The compressor was shut down at <br />5:35 pm after 6.35 hour of continuous well pumping. Just prior to shutdown, the flow rate <br />measured 3S gpm. (15.3 inches'16gaUinch=245ga1 in 7.1 minutes) <br />Initial pre-pumping wire-line depth to water from top of the wellhead nut, was measured at 187.8 <br />feet. During final flow rate test, the 1/2" pvc pipe static gas pressure was 210 psi or 485 feet of <br />submergence in water. The pvc pipe is set to a depth of 818 feet. The depth to water at the end <br />of the pump test was 333 feet. (818'- 485') The draw down was 145 feet (333-187.9) <br />Assuming a S6 gpm ((77+35y2) average discharge rate, the 6.25 hour pump test produced 21,000 <br />gallons. The capacity of 7 5!8" casing is 2 gaUft. There is 1,S 16 gallons contained in the 758 feet <br />of cased hole below the water level. The 250-foot open hole below the casing contains about <br />