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Temporary Substitute Supply Plan -Line Camp, Montezuma County, SEP 2004, Page 2 SUBSTITUTE WATER SUPPLY PLAN LINE CAMP PlT - MONTEZUMA COUNTY Operator: Four States Aggregates LLC, PO Box 1658 Cortez, CO 81321 (4SA) Owner: Mr. Duvall (Val) Truelson, PO Box 458, Dolores, CO 81323 (Owner) August 2001, Revised November 2003 and August 2004 Introduction SCOPE: This plan applies to all water use at the Line Camp Pit, a sand and gravel pit located on the Line Camp, a ranch, and to water use at the Line Camp, which may be impacted by Line (:amp Pit operations and water use. CONCEPT: The plan presented herein is intended: (1) to provide a method of providing a temporary supply of water to replace out-of priority depletions both (a) during mining and reclamation, (b) following reclamation; and (2) to provide a method to allow transition to a new water management plan for the Line Camp for the long-term future. Depletions caused by the existence and operations of the Line Camp Pit will be offset, on an incremental basis as required, during the project by allocations from the Home Ditch, in accordance with an agreement between 4SA and the Owner. In the long term, the Home Ditch senior water rights will be adjudicated to serve as a permanent augmentation source. Applications for that adjudication have been prepared and are being submitted to the Water Court with jurisdiction. A. Project Description 1. Refer to Attachment 1 for detailed project description from the Reclamation Permit Application. This attachment includes various site plans and drawings. 2. General Concept. The project, the Line Camp Pit, is located 9 miles northeast of Dolores in the Dolores River Valley. The project is located entirely within the Line Camp, and is approximately 200 feet from the Dolores River (except for the storm waterldewatedngdrajn pipeline). Located entirely in the valley floor, the twenty-acre site is leased by the Owner to the applicant for mining of sand and gravel for anapproximate fve-year period in accordance with county permits. The mining will generally be conducted by two methods, upper or "dry° and lower or "wet", each for about half the total period the pit is to operate. Water is consumed by the operation in four ways: dust control (on roads, bare areas, and for processing), washing of product, water in product mined and shipped, and evaporation from open water (exposed ground water). Operations are conducted to minimize water consumption: excerpt for evaporation, consumption is under direct control of the mine operator- evaporation is indirectly controlled by the operator through limiting open water as much as possible. Water for consumption is provided by precipitation that would otherwisE: have been lost through transevaporative processes before vegetation was removed from the affected land, and from water that would otherwise have been used via the Home Ditch to irrigate the land that has been dried up by agreement with Mr. Truelsen. Sand and gravel mined will be processed (screened and/or washed) on site prior to shipping. Water consumed (other than evaporative losses) will be taken from the open water in the pit, from a sump within the pit, or from the Home Ditch. Water will not be taken directly from the Dolores River. ~ Unchanged from original 2001 SWSP.