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Temporary Substitute Supply Plan -Line Camp, Montezuma County, SEP 2004, Page 5 b. 2003-2004 In the 2002-2003 period, following issuance of the CDOT accE:ss permit, the new access road and intersection with CH 145 was constructed, and the actual mining of sand and gravel from the Line Camp Pit began in 2002, continuing into 2003. The total affected area increased from 6 acres to 9.5 acres, including 0.5 acres of roadway, and 9 acres of stripped or bermed land. The irrigated land dried up was increased from 12.5 acres for the 2002 irrigation season, to 22.03 acres for the 2003 and 2004 irrigation seasons. An area of 1.25 acres was mined, primarily above the water table. Delays in 2001-2002 continued to delay mining that would otherwise have been done in this period. The area of open water exposed (0.69 acres in October 2002), increased in April 03 to 1.1, in May to 1.24, in June to 1.65, and in July 2003 to 2.39 acres. In the 2003-2004 period, mining continued. The affected area was increased from 9.5 to 12.6 acres, including 10 acres stripped (but not mined and not exposing the ground water), 2.1 acres of berms/stockpiled stripped material (again not exposing ground water), and 2.4 acres mined, of which a portion ~sxposed the ground water during at least part of the year. Formally, 22 acres of land was dried up and its irrigation water available for replacement of depletions; in addition, 6.9 acres was effectively dried up (due to blockage of the irrigation ditch) and its water also availables. In the Spring 2004, work was done to improve the Home Ditch, <as requested by the Water Commissioner, and to reduce transportation losses on the ditch itself. During Water Year 2003-2004,mining operations are expected fo consume '12.78 acre-feet of water, white dry-up will provide 32.20 acre-feet. (These are based on actual numbers through June 2004 and estimates for the remainder of 2004). Water immediately available from dry-up did not provide enough for consumption in Nov 2003 (0.34 acre-feet) or March 2004 (0.32 acre-feet) and that amount (0.68 acre-feet} was provided by aggregated releases from Groundhog Reservoir by MVIC per the agreement, leaving a balance of 19.;?0 acre-feet in Groundhog. future releases are assumed to come from a new agreement with DWCD. A total of 32.20 acre-feet of surplus water from dry-up Flowed downstream and is assumed to be available to DWCD per the new agreement with 4SA and the Owner, to provide water to replace consumption from the pit (including the ponds) when the Home Ditch is not in priority, and when consumption exceeds the water available from the dry-up during a given month. Therefore, as of the end of Water Year 2003-2004, a total of 51.40 acre-feet (19.20 acre-feet in Groundhog and 32.20 acre-feet in McPhee) is presumed to be available at any time of year to provide water to replace consumption by mining operations and the Line Camp ponds when water from Home Ditr:h in the same month is not available. s Dry-up map submitted to WRD February 2004. This area is NOT included in the table above.