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February 18, 2000 <br /> Irerracon <br /> Connell Resources, Inc. <br /> 301 N.Howes•P.O.Box 503 <br /> 4305 East Harmony Road Fort Collins,Colorado 80521-0503 <br /> Fort Collins, Colorado 80525 (970)484-0359 Fax:(970)484-0454 <br /> Attn: Mr. William Welch P%w,pt <br /> Re: Proposed Timnath - Connell Pit <br /> Weekly Groundwater Monitoring Qj p45e.4rrr <br /> Terracon Project No. 20985110 - �>. <br /> Dear Mr. Welch, //c-Z5 <br /> On April 7, April 8, and October 4, 1999, Terracon installed nine piezometer wells for the above <br /> referenced project. Terracon monitored groundwater levels on a weekly basis through July 9, and then <br /> on a semi-monthly basis through October for Monitoring Well Nos. 1 through 5. After Monitoring Well <br /> Nos. 6 through 9 were installed in October of 1999, Terracon has been monitoring the wells on a semi- <br /> monthly basis. The following table shows the depth of where groundwater was measured from the <br /> ground surface elevations for Monitoring Well Nos. 1 through 9, starting on October 12, 1999. <br /> Manitorin Depth of Groundwater Below.Ground Sur6II6640 <br /> 9., <br /> Date 2 3 4`.' 5 6 7 8 9 <br /> October 12, 1999 3.6 5.2 5.1 4.6 3.6 5.0 4.3 2.3 4.9 <br /> October 26, 1999 3.6 5.3 5.1 4.7 3.6 5.3 4.2 2.6 5.2 <br /> November 17, 1999 3.4 5.7 5.3 5.1 3.8 5.3 4.8 3.0 5.5 <br /> November 29, 1999 3.4 5.6 5.4 5.1 3.7 5.5 4.8 2.8 5.6 <br /> December 14, 1999 3.5 5.5 5.3 5.2 3.5 5.4 4.6 2.5 5.4- <br /> January 4, 2000 3.3 5.1 - 4.8 3.3 4.8 4.6 2.8 4.3 <br /> January 25, 2000 2.6 5.5 5.5 5.2 2.3 <br /> February 16, 2000 3.0 4.8 5.5 5.2 2.3 4.8 5.0 2.8 4.8 <br /> Piezometer#3 was redrilled on January 17, 2000. (*)Area for piezometers #6-9 was inaccessible due <br /> to the entrance gates being locked. Terracon will continue to monitor the piezometers indefinitely until <br /> further notice as requested. If you have any questions or require further information, please feel free to <br /> contact us at your convenience. <br /> Sincerely, <br /> TER CON <br /> David A. Richer, P.E. <br /> Geotechnical Engineer/Department Manager <br /> I <br /> Copies to: Addressee (3) � I <br /> Tuttle-Applegate, Inc. (1): Mr. David Jones <br /> Arizona IN Arkansas■ Colorado IS Georgia IN Idaho■ Illinois ■ Iowa■ Kansas ■ Kentucky■ Minnesota■ Missouri Is Montana <br /> Nebraska IN Nevada■ New Mexico IN Oklahoma■ Tennessee ■ Texas ■ Utah ■ Wisconsin ■ Wyoming <br /> Quality Engineering Since 1965 <br />