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iiiiiiiiiiiiiiuiii <br />999 <br />Thursday, February 15, 1996 <br />James C. Stevens <br />State of Colorado <br />Division of Minerals and Geology <br />Department of Natural Resource <br />1313 Sherman St., Rm. 215 <br />Denver, CO 80203 <br />Dear Jim: <br />'QC~ <br />Di~,~so~olii B J6+, ~ <br />9y6 <br />~.~6 a~ <br />'a <br />UNO09 <br />February 9th. 1996, Greystone was retained by Costilla County to perform <br />installation oversight of the ground water monitoring wells and conduct the <br />quarterly sampling events. Your letter of January 17, 1996 sent to Mr. Victor C. <br />Devereaux, P.C. outlining 16 separate conditions will be addressed by Greystone, on <br />behalf of Costilla County. <br />A number of the conditions /tasks have completion dates of February 16th. These <br />include the follov~ing; <br />Condition 4, Evidence of Driller contractor's licenses and / or <br />certification. This information is included, in part, in the flagged sections of <br />Greystone's proposal to Costilla County, (Attachment 1) and additionally in <br />(Attachment 2) to this letter. <br />Condition 5, Details of proposed monitoring wells are included in the <br />flagged section of our proposal to Costilla County. (Attachment 1) <br />Condition 11, Sampler Qualifications are included if the flagged <br />sections of our proposal to Costilla County. (Attachment 1) <br />Condition 13, Sampling Protocol and Chain of Custody is included if <br />the flagged sections of our proposal to Costilla County. (Attachment 1) <br />Condition 14, Laboratory Qualifications, The laboratory selected to <br />perform the work is Core Labs of Aurora, CO. The laboratory qualification <br />information is included in Attachment 3. Included in this section is, Core <br />Laboratories "Statement of Qualifications" and last EPA WP & WS proficiency <br />reports. <br />5990 Greenwood Plaza Blvd. Suite 250 Englewood, CO 80111 <br />(303)850-0930 Fax(303)721-9298 <br />