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Kim Edwards South Platte Combined Replacement Plan October 23, 2007 Page 6 Before any credit can be taken for the Boyd 8 Freeman Ditch, accurate measuring and recording devices must be installed and those devices must be approved by George Varra, the District 3 Water Commissioner. Loloff Section 4 Ditch The Loloff Section 4 Ditch collects seepage and waste water in the vicinity of the Loloff Pit in the SW1/4 of the NW1/4 of Section 4, Township 5 North, Range 65 West. The Division 1 Water Court adjudicated a conditional water right for the Loloff Ditch in case no. 87CW152 for up to 4 cfs of water with an appropriation date of March 15, 1987. The decreed uses of the Loloff Ditch include irrigation and augmentation. Using an existing flume located on the ditch, when in priority, water will be diverted into the existing lake at the Loloff Pit and used for recharge. Before any credit can be taken for the Loloff Section 4 Ditch, accurate measuring and recording devices must be installed and those devices must be approved by George Varra, the District 3 Water Commissioner. Citv of Greelev and Tri-Districts Lease Aggregate is not proposing to use fully consumable water leased from the City of Greeley and the Tri-Districts in this plan since the replacement water is not required. However, Aggregate may use the sources in future plans to supplement the current augmentation water. St. Vrain River Replacement Sources Projected 2007 Yields acre-feet Comments Coffin 8 Davis Ditch 328.5 100% ownershi Smith & Emmons Ditch 0.0 1.5 shares total Le ett Reservoir 0.0 19.6 shares total Cit of Lon mont Lease 0.0 Annual lease if necessa Coffin & Davis Ditch The Coffin & Davis Ditch is currently owned by the City of Longmont (21.55%), Don Sherwood (47.55%) and Aggregate (30.99%). Pursuant to a 1999 mining lease agreement with the City of Longmont, Aggregate has the right to use their 21.55 percent of Coffin 8 Davis. Pursuant to a 1993 mining lease with Don Sherwood, Aggregate has the right to use 47.55 percent of the Coffin & Davis Ditch. Mining has permanently removed the historically irrigated area from irrigation. Assuming a 10% ditch loss and 55% farm efficiency the dry year consumptive use was determined to be 328.5 acre-feet. Smith 8 Emmons Ditch Aggregate owns 1.5 of 8 total outstanding shares in the Smith & Emmons Ditch Company. The 1.5 Smith & Emmons Ditch shares were historically used to irrigate 68 acres of pasture grass. Using a Blaney-Griddle analysis the potential crop consumptive use for the 68 acres was determined to be 108.7 acre-feet. Assuming a 10% ditch loss and 55% farm efficiency the dry year consumptive use was determined to be 91.65 acre-feet. The applicant may only utilize the 1.5 shares of Smith 8 Emmons Ditch in this plan at such time as all required measurement and bypass structures have been installed and approved by the water commissioner.