7b supp
ITEM NO: ______7b_Supp_______ DATE OF MEETING: August 20, 2013 Lora Lake Apartments Cleanup August 20, 2013 History Lora Lake Apartments were acquired as part of third runway property acquisition. Past site uses causing contamination include: -Burien Auto Wrecking from the mid 1950s to mid 1980s. -Novak Barrel Washing. Site Cleanup Status Remedial Investigation and Feasibility Study completed January 2013 Cleanup Action Planning (CAP) work with Ecology completed- with provisions for additional cleanup if needed for development Cleanup Action Plan going to public comment for final decision by Ecology Commission Action required before CAP goes to public comment- back on September 24th ' a \\ ' u... MM. 9 ' ' ( .'n-u aw" ,5" m S 5 E Mela lllll n . M 1 AA 5(:-\,H swnwm 3 mm .-. L , Hughts -. 1 "E; ' \ seal 32 ' ' I x" a; 1 u h \ , 5" Ou evard PatkI ' 1 v L?" w 3-". ,5, '. ti K "394m: :3: ES 15- I Stub $ H mm SJRH u 501"!:\\ Sad-m Lora Lake 1982 Drgdged Material \K M ApaLtmems Parcel c"m[","1Area \ Slums: but in" Seahum \\ 33 " "Harm," Ruri/en _ \\\x}\RIIverton \\\ ,; a . ,._ "4', 1n! "M" ht\ss \<\\,\an Lora Lake 2K; SWWSI swmn Parcel mom. '4' CLW'h$\\509 . " '- (3 ungu- w ~13 ,9 , , ' g: g \\ i , S -5: ' E v 1:3 _ ' 'v SWSMSC ,- \J 5 N .quJ f I -MapumdusmanngsRoadlayer, -cootdnmmdpnsenmanA01983HARN "PMMMWWaW whenmdwm. Maijm= LGbenOonbrmalCon-c. m Cleanup Actions Apartments Removal of 19,000 cubic yards of dioxin contaminated soil and capping of 3.8 acres of remaining soil. Port option for additional cleanup to prepare site for development. Lake Parcel Capping of contaminated sediments, and restoration of Lora Lake to a wetland. Clean up Action Areas Lora Lake Apartments Cleanup Upcoming Milestones Request Commission Authorization for the CEO to Sign the Consent Decree - September 24, 2013 Public Comment Period October or November 2013 Draft RI/FS Report Draft Cleanup Action Plan Consent Decree or Agreed Order Design Apartment and Lake Cleanup 2014-2015 Complete Cleanup at Apartments Summer of 2016 Complete Cleanup at Lake Summer 2017 Lora Lake Apartments Cleanup Financial Implications Total Estimate of Cleanup cost = $18.2 Million The cleanup costs of the Lora Lake Apartments parcel and the Lora Lake parcel will be accounted for differently: The Lake cleanup will be accounted for as an operating cost as the property is part of the object free area within the runway protection zone (RPZ), thus no development is permitted Estimated cost = $4.9 million (2013 operating cost) The Lora Lake Apartments parcel is not necessary for airfield operations. The Port's intent is to clean up the property in anticipation of sale. The clean-up costs are being accounted for as non-operating costs. Estimated cost = $13.3 million ($11.5 million recognized as non-operating expense in 2012, $1.8 million recognized as non-operating expense in 2013)
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