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Mr. Forrest Leaf May 4, 2004 Page 2 acre-foot. The Six Mile No. 2 Reservoir delivers 45 inches per share with 20 inches per acre- foot. According to this information, the 10 shares of Boulder & Weld reservoir and 3 shares of Six Mile No. 2 Reservoir delivers an average of 39.25 acre-feet. Assuming a river transit loss of 0.75 percent (0.25 percent per mile for 3 miles) a 20% ditch loss in the Rural Ditch the consumptive use associated with the reservoir rights is 16.91 acre-feet and the return flows are 13.83 acre-feet. A portion of the Rural ditch water will be delivered to a 2 acre recharge basin located on the property and a portion of that water will be delivered directly back to the South Platte River. According to attached table no. 2, 0.8 shares will be delivered to the river and 2.7 shares will be delivered to the recharge basin for recharge back to the stream system. See attached table 3 for the recharge accretions that will occur in 2004. The 10 shares of Boulder & Weld reservoir and 3 shares of Six Mile No. 2 Reservoir will be released from Panama Reservoir during times when the Rural ditch shares are not adequate to replace the depletions to the stream system and satisfy the return flow requirements. I approve the proposed substitute water supply plan in accordance with Section 37-90- 137(11), C.R.S., subject to the following conditions: This plan shall be valid through December 31, 2005, unless otherwise revoked or modified. If this plan will not be made absolute by a water court action by the plan's expiration date, a renewal request must be submitted to this office with the statutory fee (currently $217) at least 45 days prior to the expiration date of this plan. 2. A well permit must be obtained for the gravel pit in accordance with §37-90-137(2) and (11), C.R.S. Any application will be evaluated subsequent to approval of this plan. The provisions of Colorado Revised Statute 37-90-137(2) prohibits the issuance of a permit for a well to be located within 600 feet of any existing well, unless the state engineer finds that circumstances so warrant after a hearing held in accordance with the procedural rules in 2CCR402-5. This hearing may be waived if you are able to obtain statements from the owners of atl wells within 600 feet, verifying that they have no objection to your use of the proposed well. Should a new well permit be denied for reasons of 600 foot spacing, or any other legitimate reason, approval of this substitute supply plan will be cancelled. 3. The total area of exposed pond surface shall not exceed 28.4 acres of water surface. Total consumptive use of the mining operation shall not exceed 119.8 acre-feet of which 76.22 acre-feet is due to evaporative losses, 3.68 acre-feet is due to dust suppression, 22.06 acre-feet is due to water remove in product (4% moisture of 750,000 tons of raw material) and 17.8 acre-feet consumed due to the production of 145,000 cubic yards of concrete. Should the total consumption at the pit exceed these amounts or the total depletions to the stream system exceed 86.7 acre-feet prior to the expiration date of this plan, an amendment needs to be filed with this office.