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Paradox Valley Unit <br /> Proposal for Evaporation Pond <br /> seismic damage, one or more alternatives will be required to maintain the current <br /> level of salinity control. <br /> Proposed Action <br /> The proposed action is to rehabilitate an existing evaporation pond approximately <br /> 16 acres in size to test the feasibility of salt disposal by evaporation. The pond <br /> was built as part of the original construction of the Unit to impound brine pumped <br /> during the Well Field pump tests in the 1980's. The pond is located in the <br /> S1/2SW1/4, northwest of Yll County Road, and contains approximately 45.3 <br /> acres of land(Section 3, T. 47 N.,R. 18 W.) (See Figure 1). Pumps and <br /> extraction wells already operating at the site would be used to supply brine to the <br /> pond via an existing 10-inch diameter pipeline. The existing pipeline is <br /> approximately 20 years old, and will be reconnected to extend over the river and <br /> to the evaporation pond(the pipe currently extends to the river on each side). The <br /> condition of the existing pipeline will be field-evaluated to determine whether it <br /> will require rehabilitation prior to use. The pond may require further excavation <br /> as well as the installation of a membrane liner. <br /> f <br /> C, 1 / Property Line "Th,i <br /> � 1 <br /> 5000 f- �� ` <br /> 4 4 �nV <br /> ti <br /> r Existing Evaporation Pond <br /> j-j Air -4,,r-- / ..4, ,,,i,-,,, <br /> ,- , r ,, ,1 <br /> � <br /> � "' ,ter'% <br /> 952-----:>.--/ /le <br /> ' / (/, 1117;<f i - t 7 7 <br /> / e'y <br /> /1��.E jr �c rf `� <br /> f , If f ,/ <br /> • <br /> ,Iiilcr-4.7, ),.„4,1 /i,,, ,2.-...1 fir \,. <br /> I cr.-rj,a )''.i et '\I l' ., AL...., 1: /' 0. <br /> tgitit•t° <br /> ,f <br /> ,��r � 1 � ��? Vil�, \,��� tiro ya�`;1 <br /> We ls�� 2 0 "� '1��'; ti <br /> IS-II j'' '-- ( %\ ,� ) <br /> Figure 1—Location of Existing Evaporation Pond <br /> 4 <br />