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ATTACflMfiNT "A", p. 4 <br />The new nnd future mechanical facilities will all be <br />located within the prism of land between the 200-foot <br />shoreline setbac4, and the west side of the aerated lagoon. <br />The total acreage of the prism is.10 acres, 7.4 of which is <br />classified as wetlands.l <br />;Jone of Stage II £acilities will have an elevation <br />greater than 31.1 feet (NOS datum; Attachment No. 4, Sheet <br />No. 4). 'Che mechanical treatment system wili require a <br />second ou=fall, which will be located below grade <br />(Attachment No. 4, Sheet No. 2). According to preliminary <br />analysis, the new oul:fall will extend approximatel} 350 feet <br />along the bottom of t:he Snohomish River to a depth of 21 <br />feet, wit?i a diffuser Iength of 90 feet. <br />Also, the eler_tr.ical demands of the new facilities will <br />be acci�mmodated by runniu� a new service under the Snohomish <br />River through existing conduitn. These electrical lines <br />will then be passed, be�low grade, to the mech�nical woi•ks. <br />1Fina1_�upplemental Environmental Impnct Stntement, Jones <br />— — --- __ <br />and Stokes, Inc., Apri.l 1987, p. 2-6. <br />