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WSP00596
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Last modified
1/26/2010 12:26:49 PM
Creation date
10/11/2006 9:50:45 PM
Metadata
Fields
Template:
Water Supply Protection
File Number
8276.200
Description
Paradox Valley Unit - Colorado River Basin Salinity Control Project
State
CO
Basin
Colorado Mainstem
Water Division
4
Date
7/7/1986
Title
Finding of No Significant Impact For Deep-Well Injection Testing Program
Water Supply Pro - Doc Type
EIS
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<br />00 46 <br /> <br />pipeline and pumpinq plant <br /> <br />A buried, 12-inch polyethylene brine supply pipeline would be constructed <br />from the brine well field to the injection well for a distance of 3.7 miles. A <br />relift pumping plant would be constructed at the beginning of the pipeline. <br /> <br />Access road <br /> <br />A 20-foot wide gravel access road would be constructed from Colorado Highway <br />90 for approximately 1.2 miles to the injection well. A portion of the <br />alignment would follow an existing road, as shown on the frontispiece map. <br /> <br />powerline <br /> <br />A 69kV powerline would be constructed from existing lines near Colorado <br />Highway 90 to the injection well and would follow the same corridor as the <br />access road and pipeline. This powerline would be designed to prevent <br />electrocution of raptorial birds. This power line would be constructed in the <br />latter part of 1986 and in 1987. <br /> <br />Construction office and warehouse <br /> <br />Two double-wide office trailers of approximately 1,344 square feet each <br />would be located on the east side of the river about 0.5 mile from State Highway <br />90. These construction offices would be serviced by holding tanks for fresh <br />water, a leach field septic system and electricity from nearby lines. The well <br />site, construction offices, and brine treatrrent surface facility are all above <br />the 100 year flood plain. Some of the pipeline and possibly the transfer pumps <br />would be in the 100 year flood plain. Four private telephone lines would be <br />required, one to the well site and three to the field station. <br /> <br />A brine treatrrent surface facility of approximately 2,500 square feet would <br />be constructed near the brine production pumps on the east side of the river. <br />This facility would be serviced in the same manner as the construction office. <br /> <br />Construction Schedule <br /> <br />The construction contract for the test injection well would be awarded in <br />July 1986. The contractor would then obtain special-order items and begin site <br />preparation. The access road south of Highway 90 would be improved where <br />necessary, including re-routing approximately 0.25 mile of the existing road to <br />avoid wetlands near the Dolores River. After the awarding of the contract, the <br />contractor would begin preparing the drill site. In December, the casing would <br />be received, the drill rig moved in, and drilling started. The road <br />construction would be a negotiated item of the well contract. The power line <br />contract would be awarded in late fall. The pipeline and the contract for <br />constructing the pumping plants and brine treatrrent facilities would be awarded <br />in 1987. Drilling would be completed and the large drill rig moved off site by <br />April 1987. If the preliminary tests were successful, the injection tubing <br />would be ordered. <br /> <br />4 <br />
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