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Town of Akron - Well and Pipeline Construction September 11-12, 2002 Agenda Item 12c Proiect Description The purpose of this project is to add two new wells, with transmission lines, to the Town of Akron's water system to provide adequate water supplies for current needs, while allowing for modest residential and commercial growth. Hoyer Well - The project will connect the existing Hoyer Well to a pipeline to bring it to the Town's Reservoir. In addition to the well and related pumping equipment, the project includes 8,300' of 12" ductile iron pipe. The total costfor this part of the project is $241,410. The $14,705 cost to drill the well is included in the total cost, as is being considered as part of the Town's local match of $39,000. Thomas/Kuesel Well- The project will drill the well and build a pipeline to connect to adjacent transmission lines. In addition to drilling the well and providing related pumping equipment, the project includes 2700 feet of 12" ductile iron pipe. The total cost of this part of the project is $131,389. Backup Generator - The project will install a backup emergency generator at one of the existing wells close to Town. The cost of this part of the project is $16,000. Three potential sources of water supply were considered: 1. The Chadron Formation 2. The Ogallala Formation 3. The Alluvium along the Twenty-two Slough Alternative NO.1 is the primary potential source of additional water supply. The most promising locations for test wells are Sections 22 and 27, 3N, R53W. The saturated thickness at these locations is estimated to be 50 feet of highly permeable sand and gravel lenses. The wells would intercept groundwater flow in the relatively narrow linear channels which trend generally north and northwest. Alternative No.2 is the water producing sands of the Ogallala formation, which are relatively thin and widely scattered in the area east and south of Akron. In the NE 1/4, Section 6, 2N, R51W the saturated thickness is estimated to be 75 feet. Saturated thicknesses in excess of 75 feet occur to the south of this location in isolated pockets which overlie the alluvium along Surveyor Creek. However, given the probable low yield of completed wells, questionable long-term recharge, and distance to Akron's distribution system, the Ogallala has less priority as a significant source of additional water supply at the present time. Alternative No.3 is the alluvium along the Twenty-two Slough north of Akron, and along Camp Creek west of Akron. The Twenty-two Slough source has been eliminated from consideration at this time since it is tributary to the South Platte River, and remotely located compared to the Camp Creek Alluvium. The Camp Creek Alluvium lies generally west of Akron at the western edge of Washington County. A significant deposit of alluvium lies within five miles from the proposed well site in the Chadron formation on Section 22. The alluvium in Camp Creek is a significant and dependable groundwater source. It is capable of providing Akron's long-term needs in the event that wells completed in the Chadron formation are unable to sustain future growth. Page 3 of 7