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May 29, 2001 <br />Connell Resources, Inc. <br />4305 East Harmony Road <br />Fort Collins, Colorado 80525 <br />Attn: Mr. William Welch <br />Re: Proposed T'imnath -Connell Pit <br />Bi-Monthly Groundwllter Monitoring Episodes <br />Terracon Project No. 20985110 <br />near ner. welch, <br />11err~cvn <br />L,II ~1 ~'~~~f4.G.i,.1~rr <br />XG' ~ ~aJ6~ H~~ <br />~~ 1, y~~, ~ L.ry~,~r--- <br />/ "~' <br />;''"+ v ~ 2001 <br />On April 7, April 8, and October 4, 1999, Terracon installed nine piezometer wells for the above referenced project <br />as requested for purposes of monitoring the groundwater levels during the mining and extraction operations. <br />Terracon has been requested to monitor the groundwater levels on a bi-monthly basis until tuMer notice. The <br />following table shows the depth of where groundwater was measured from the ground surface elevations for <br />Monitoring WelllPiezometer Nos. 1 through 9 for the year of 2001. <br />~- - <br /> <br />A <br />" - <br /> <br /> <br />~ <br />~ „~ <br />r - <br />March 28, 2001 8.9 6.1 7.0 10.1 5.8 (1) 5.5 <br />April 24, 2001 0 5.9 (3) 9.1 6.0 4.0 0 <br />May 16, 2001 ~ 8.3 5.6 8.1 8.6 5,7 3.3 4.5 <br />May 29, 2001 4.6 4.4 6.7 6.1 5.7 3.5 4.5 <br />Notes: (1) Piezometer was inaccessible due to the on-going mining operations. <br />(2) Piezometer hes been destroyed and no longer available for monitoring purposes. Upon request, we can <br />replace this piezometer. <br />(3) Could not be monitored due to weather. <br />Tercacon will continue to monilor the piezometers indefinitely until further notice as requested. If you have any <br />questions or require further information, please feel free to contact us at your convenience. <br />Sincerely, <br />7ERRACON <br />Prepared by.' j ~q <br />~-~~/ / `I~ ~ \ <br />David A. Richer,P E. ,` \ <br />Geotechn(cal Engineer/Department Manager <br />Copies to: Addressee (3) <br />Tuttle-Applegate, Ine. (1 ): Mr. David Jones <br />Annma \ ArFansas \ Colowoo \ Gam~a \ Itfalw \ Ilbrwn \ Iowa \ Kann \ W:: •!dJ,p~ \ M.narsnta \ Ml..tgni \ MLnlprk. <br />NeDr.15u1 \ NeraGa \ New Menco \ Qx4Tlrnna \ lenne5sac \ Teraa \ Utall \ Warzmmn \ npmrty <br />