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STATE OF COLORADO OFFICE OF THE STATE ENGINEER Division of Water Resources Department of Natural Resources 1313 Sherman Street, Room 818 Denver, Colorado 80203 Phone (303) 866-3581 FAX (303) 866-3589 March 1, 2004 www.watecstate.co.us Katherine R. Griffin Martin and Wood Water Consultants, Inc. 602 Park Point Drive, Suite 275 Golden, CO 80401 J RECEIVE© ~w°°~`°~R ye 90 MAR 0 4 2004 ~ ~ ~,; ~1876~ Division of Minerels and Geology Re: Speer Mining Resources Pit, Substitute Water Supply Plan DMG File No. M-83-176 / Section 34, T1 S, R67W, 6v' P.M. Water Division 1, Water District 2 Dear Katherine Griffin: Bill Owens Governor Greg E. Walther Executive DireROr Hal D. Simpson, P.E. State Engineer This letter is in response to the application of February 25, 2000 requesting a substitute water supply plan (SWSP) for a sand and gravel pit to be operated by Asphalt Specialties Company, Inc. (Applicant) in accordance with §37-90-137(11) C.R.S. The Applicants shall be responsible for compliance with this plan, but the State Engineer's Office may also pursue the landowner, for eventual compliance. The required fee of $1,343 for the substitute water supply plan has been paid. This plan describes the proposed water uses for 2004 and 2005. The proposed plan anticipates a maximum annual net depletion of 19.5 acre-feet for up to 2.18 acres of groundwater exposed in a dewatering trench and sediment pond. No groundwater was exposed within the permit boundary prior to January 1, 1981. You have provided a monthly breakdown of the maximum annual depletions totaling 5.96 acre-feet of evaporative loss from a maximum of 2.18 acres of exposed groundwater, 0.53 acre-feet of water used and consumed for dust control, and 13.01 acre-feet of water lost with 442,113 tons of mined product. No phreatophyte credit has been applied to this plan. This plan anticipates dry mining of the Speer Mining Resources Pit by dewatering. The operator has obtained a bond in the amount of $678,169 to cover the cost of remediation, including lining and/or backfilling the pit in the event the operator walks away from the project and/or allows the dewatering operation to discontinue. The proposed source of replacement for this pit is from 20.48 acre-feet of fully consumable efFluent leased from Consolidated Mutual Water Company (Consolidated Mutual). The Consolidated Mutual water will be released from the Metro Wastewater Treatment plant, which is located approximately 10 miles upstream of the operation. A 0.5 percent per mile transit loss (5 percent overall loss) has been accounted for in the replacement. The monthly depletions and replacement requirements are found on the attached Table 1.