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w ~ CD .;:;:. interpret~tion by two independent contractors led to the selection ~f a test well site. The well plan is complete and land ~as been purchased for the test well. The solici- tation/RPF (request for proposals) was prepared for the 15,400 foqt deep injection well using advance design features to handle the high pressure and temperature corro- sive brin~. Reclamation issued the RPF's for the well drilling qn November 1, 1985. The contract award for the well drilling is scheduled for June 1986. The entire test well program is scheduled to be completed by 1990. Las Veqas :Wash Unit NV (BR) The 3.5 m~le pittman bypass pipeline was completed and is in operation. A monitoring program began June 20 to evaluate the effectiveqess of the pipeline to prevent seepage. The expected ~alt reduction of 7,000 tons per year is included in data b~se. Another strategy which may be cost-effective to further reduce satinity loading is using ground water barriers in selected areas of the Wash to develop a ground water deten- tion basin system. Each detention basin would be formed by a periphetal slurry trench/wall. An 8,000 foot perimeter dike and ~lurry trench/wall will be constructed near the Whitney a;ea (now part of East Las Vegas) to verify the feasibility ~f this strategy. If a detention basin system appears feasible after 2 years of monitoring, additional basins may be built. The construction of ground water detention!basins may accomplish the equivalent salinity reduction'expected from the bypass channel for the same cost with less,local opposition. The proposed Whitney Verification program will also evaluate a vegetative test site and involve other water quality monitoring activities in the Wash. McElmo Creek/Dolores proiect co (BR/USDA) Reclamati9n's planning activities for the McElmo Creek Unit were conc~uded with the passage of Public Law 98-569. Salinity ~ontrol features will now be constructed under the Dolores ptoject. Supplements to the Definite Plan Report and Final Environmental Statement of the Dolores Project will be drafted in 1986 and 1987 for filing with EPA. Final appro- val by th~ Commissioner of Reclamation is expected in the spring of' 1988. 21 .-..,4-a , il :; 1 A ,;i '..~ '~ ,~.l :~ i Ii '-l! ",j -~ 1 '~ ., 1 ,'I .~ ,~ , 1 ij .J i 'i I .~ :~ ~ ',:i 'a ~~ t '- ~g :0 i 4 'j .~ ~ ! ',;1 i ~ "~ Jj 'I :,1 ,;1 !3 " )} .l , -~ " 1 1 , .J ~ .l 'Ii " ;W " 3 ,i '1 ~~ .ii , ~ Ji 1 , % ~ . ~ I i ~