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,- . <br />Richard D. Lamm <br />Governor <br />DATE <br />DEPARTMENT OF NATURAL RESOURCES <br />David H. Getches, Executive Director <br />MINED LAND RECLAMATION DI1 <br />DAVID C. SHELTON. Director <br />August 18, 1986 <br />T0: J. Deckler ~ / <br />FROM: C. Thompson <br />RE: MODIFICATION"`T---O~~~MO~\`NITORING PROGRAM: GRASSY GAP MINE <br />I have reviewed the monitoring to date at Grassy Gap and recommend the <br />following modification to the program. Two different programs are proposed; <br />one for active status (A) and one for the present temporary cessation (TC). <br />Dates are specified for certain sampling due to the windows that exist in the <br />area for collecting data representative of the extreme flow and groundwater <br />conditions. <br />TEMPORARY CESSATION <br />ACTIVE <br />Sites To Be Field Full Suite <br />Monitored Parameters Parameters <br />SW-4 June and October October <br />MW-3 June and October October <br />Spoils Wells June and October October <br />Spoil Spring and <br />Seep Survey June <br />Sites Field Parameter Fu11 Suite <br />SW-4 Q June and October <br />MW-3 Q October <br />Spoils Wells Q June <br />Spoil Spring and <br />Seep Survey June <br />SW-2 Q June and October <br />423 Centennial Building, 1313 Sherman Street Denver, Colorado 80203 Tel. (303) 866-3567 <br />