LATA-KENTUCKY YEAR IN REVIEW PRESENTED BY MARK DUFF

Transcription

1 LATA-KENTUCKY YEAR IN REVIEW PRESENTED BY MARK DUFF Prgram Manager LATA Kentucky, LLC

2 PADUCAH PADUCAH QUICK FACTS 3,500+ acre federal site Shared site with perating gaseus diffusin plant and DUF 6 cnversin facility 1,800+ jbs fr western Kentucky 2

3 SAFETY PERFORMANCE LATA Kentucky has perated nearly 2 years and 1.85 millin hurs withut a LWDC. LATA Kentucky received the highest rank in FY 2012 fr Ttal Recrdable Injuries amng DOE-EM Prime Cntractrs with 0 TRC and 0 DART cases TRC DART Safety perfrmance by DOE prime cntractrs as defined in CAIRS database DOE Cmplex Avg

4 CLEANUP SCOPE Paducah Remediatin Cntract is rganized int five primary perable units: Grundwater Cleanup chief surces and mitigate ff-site risk f cntaminatin. Inactive Facilities 25 structures: 24 razed Burial Grunds 8 areas spanning ~86 acres Sils 66 areas ttaling ~115 acres, gruped t gain efficiencies. Surface Water Abut 6 miles f creeks and ditches. 4

5 GROUNDWATER PROGRAM SOUTHWEST PLUME On-site SW Grundwater Plume Waste ils cntaining TCE were bidegraded at landfarm (SWMU 1) frm TCE als in grund at tw sites near C-720 Maintenance Building TCE in shallw aquifer (20-60 ft) at all lcatins Sil testing dne July-Octber 2012 t determine lcatins fr deep sil mixing at il landfarm Oil landfarm as shwn in 1970s SWMU-1 landfarm sil sample area 5

6 GROUNDWATER PROGRAM SOUTHWEST PLUME Field wrk t clean up landfarm surces slated t start in September 2013 Augers will inject reactive irn t mix it with ils t depth f abut 50 ft Results f 2012 sil testing will be used t determine if biremediatin r lng-term mnitring is needed at C-720 sites 6

7 GROUNDWATER PROGRAM C-400 CLEANING BUILDING 2,100 acres f cntaminated grundwater extends ff-site tward Ohi River. Cleanup will address bth n-site surces and ff-site risk. C-400 Cleaning Building surce f trichlrethene (TCE). 7

8 GROUNDWATER PROGRAM C-400 CLEANING BUILDING C-400 strategy: Started Phase IIA fieldwrk Sept. 26, 2012, fr upper 65-ft surce area fr up t 2,500 gals f TCE; system t be peratinal by summer Cntinued Phase IIB technlgy evaluatin fr lwer ft; anticipate recvering up t 600-4,500 gals f TCE using chemical r steam treatment. 8

9 GROUNDWATER PROGRAM NORTHEAST PLUME OPTIMIZATION DOE currently prvides municipal water t abut 100 hmes and businesses The ptimizatin prgram will reduce the Nrth East plume similar t ur Nrth West prgram t reduce ffsite cntaminatin 9

10 D&D PROGRAM C-340 METALS PLANT Demlitin activities started September 2012 were cmpleted February 12, 2013 Subcntract fr structural demlitin awarded t LVI Services September 12 Octber 12 $46.9M life cycle prject 3,500 tns f waste, including 1500 tns f PCB cntaminated debris Nvember 12 December 12 FEB 65,000 ft 2 7-stry structure January 13 February 13 10

11 D&D PROGRAM C-340 METALS PLANT CHALLENGES Transite Over 48,000 ft 2, ~ 1500 sheets remved frm August 22 nd December 19 th Cmplete - ver 100 tns f transite in landfill Risk f release f cntaminatin beynd cntrl bundaries Cntinued cncern frm site wrkers expressed frm dwnwind lcatins 20 Mnitrs deplyed arund perimeter f ACM regulated t address ptential disbursement beynd the Asbests Regulated Area f C-340 Reactr Twers/Bmb Furnace Three reactr twers n 6 th and 7 th flrs determined t include cncealed asbests underlayment in clamshell heaters arund the twer 11

12 D&D PROGRAM C-410 FEED PALNT $107.9M life cycle prject Over 160,000 ft 2, 7-stry structure Remved > 9,000 linear feet f UF 6 piping/equipment Dem Ready status scheduled fr May cld traps with significant quantities f UF 6 require critical lifts int cntainers fr strage in CAT-2 facility n site. Similar technical challenges t C

13 D&D PROGRAM Lessns Learned Furnaces, clams shell type heaters, insulated reactr vessels cntain hidden layers f asbests. Nn-asbests cntaining firebrick in heaters represent ptential cntaminatin release Building rfs may cntain very light, easily dispersible insulatin Basements and pits represent several challenges including: Standing water n the slab hides these pits r trenches. Generating ptentially cntaminated pits full f water Runff f cntaminated rainfall and dust suppressin water thrugh cracks and sumps The fixative is effective at cntrlling airbrne radilgical cntaminatin, BUT: Paint chips and the fixative may becme airbrne in cld weather. Use clred fixative different than base building paint. Fixatives may becme carcingenic when heated Limitatins may apply n high reach demlitin during perids f high winds 13

14 D&D PROGRAM Lessns Learned Security issues need t be reslved t allw use f clsed circuit camera n the high reach demlitin equipment t imprve peratr visibility. Limitatins n manlift basket capacity can prvide challenges fr transite remval. Size f ur transite sheets (abut 40 square feet) exceeded manlift manufacturers size required an Engineering evaluatin t ensure safety f ur apprach. Weight restrictins weight f sheet f transite and 2 peple can exceed capacity f sme lifts. Tls fr cutting the lead heads are limited we used blt cutters. Cld weather demlitin can significantly reduce efficiency and increase safety risks 14

15 LESSONS LEARNED FOR GDP TRANSITION PCB Remval Plant has PCB electrical equipment. 275 large capacitrs and 75 transfrmers. Ptential cntaminatin indr and utdr due t spills and verfills. 6 buildings with PCB il leaching thrugh gaskets. 24 buildings with PCB gasket material. WASTE MANAGEMENT SYMPOSIA Mst admin buildings with PCB gaskets. >16,000 cllectin trughs capture il frm PCB-impregnated gasket material in ductwrk. 15

16 LESSONS LEARNED FOR GDP TRANSITION PCB Remval PCB cntaminatin will be widespread and remediatin/maintenance prgrams will cntinue thrugh demlitin phases. C-340 Metals Plant included PCB cntaminatin thrugh 50% f the building. Abut 1,960 knwn PCB gasket spills n building flrs since Prir t 1989, flr sweepers were used t clean up spills. Oil filled cable trays dried ut. 1,100 gals f PCB ils frm ventilatin ducts cntained ver past 2 years. Generatin will cntinue thrugh il seepage in PCB gasket materials. Jints likely t pen during cling f HVAC and increase flw and extent f leakage. 16

17 PATH FORWARD Cntinued remediatin cleanup and D&D at Paducah until 2039 is expected t generate up t 4M yd3 f waste The existing plant industrial landfill will be utilized t maximum capacity (~1M yd3) The remaining 3M yd 3 f waste is being evaluated in a Remedial Investigatin/Feasibility Study Reprt (D1 issued t regulatrs in May 2012) examines three scenaris: 1. Waste dispsal decisins prject-by-prject 2. Ship waste t licensed facilities ff-site 3. Build an engineered waste-dispsal facility n-site Prpsed Plan target: Spring 2013 Recrd f Decisin target: Early FY14 WASTE MANAGEMENT SYMPOSIA 17