April 8, 2015 Olympic Medical Center Rebecca Lawson, P.E. LHG. Connie Groven, P.E. Audrey Kuklok

Transcription

1 April 8, 2015 Olympic Medical Center Rebecca Lawson, P.E. LHG. Connie Groven, P.E. Audrey Kuklok

2 Overview of harbor cleanup projects Rayonier Mill Update Western Port Angeles Harbor Update K Ply Mill Draft Remedial Investigation/Feasibility Study Draft Cleanup Action Plan Draft Agreed Order Other Documents SEPA and Public Participation Plan Questions

3 Port Angeles Cleanup Sites Port Angeles Sediments Investigation Rayonier Mill Study Area Marine Portion Upland Portion Rayonier Mill Off-Property Soil Dioxin Study Marine Trades Area K Ply Unocal Bulk Plant #0601 Western Port Angeles Harbor

4

5 Getting to Study Area Cleanup Collect additional soil and groundwater data Ecology finishes Harbor Sediments Investigation Upland data summary report (Volume I) Marine data summary report (Volume II) Preliminary cleanup standards section Development of alternatives section Evaluate Interim Action alternatives (Volume III) Draft Interim Action Plan Public Comment Period

6 Next Steps Ecology reviewing: Agency Review Draft (ARD) Interim Action Alternatives Evaluation Report (Vol III) Feb 2015 Rayonier will submit: Public Review Draft (PRD) Interim Action Alternatives Evaluation Report (Vol III) Summer 2015 Anticipated public comment period Fall 2015 Final Upland, Marine, & Alternatives Reports Early 2016 ARD Interim Action Plan Spring 2016 Anticipated public comment period Summer 2016

7

8 Getting to Western Harbor cleanup Supplemental Harbor Sediments Investigation Remedial Investigation/ Feasibility Study Selection of Cleanup Action Site Cleanup

9 Progress Agreed order and work plan signed May 2013 Sampling plan approved June 2013 Fieldwork completed July 2013 White Paper and RI/FS extension for technical issues May 2014 Next Steps PLPs will submit: Agency Review Draft RI/FS 90 days after resolution of issues Public Review Draft RI/FS 60 days after receipt of comments A cleanup plan will be developed and implemented under a separate legal agreement.

10 Draft Remedial Investigation/Feasibility Study Draft Cleanup Action Plan Draft Agreed Order State Environmental Policy Act (SEPA) review Public Participation Plan

11

12 Port s log yard Peninsula Plywood (PenPly) Rayonier s PenPly K Ply Pipeline General Petroleum/ExxonMobil Potentially Liable Persons (PLPs) Port of Port Angeles Rayonier ExxonMobil

13 Site Background 1920s today: Bulk fuel plants at various times 1990 order: Rayonier hydraulic oil and PCP spill 2005 order: Marine Trades Area order with port and Chevron 2012 order: Split K Ply from MTA

14

15 Media Contaminants Soil Groundwater Indoor Air Gasoline COC COC COC Diesel COC COC COC BTEX COC COC COC Heavy Oil COC COC Pentachlorophenol Dioxins/furans COC COC

16 Prevent harm to aquatic organisms & consumers of organisms Prevent direct contact by workers Prevent inhalation by future workers Vadose Zone Smear Zone Remove free product

17 Contaminant of Concern Soil (mg/kg) Groundwater (µg/kg) Diesel 2, Gasoline Heavy Oil 2, Benzene Ethylbenzene 6 Toluene 7 Xylenes 9 Pentachlorophenol 330 Dioxins/furans

18 Soil Standard POC: Throughout the site Groundwater Conditional POC: At the bulkhead Air Standard POC: Throughout the site. Assess indoor air with vapor assessment prior to future construction.

19 Gasoline, Benzene and Heavy Oil Results in Soil

20 Gasoline and benzene in groundwater

21

22 Alternative 1 Alternative 2 Alternative 3 Alternative 4 Air Sparge Curtain remove hot spots Chemical oxidation capping remove hot spots bioremediation if needed Removal of all contaminated soil above water table partial removal below water table enhanced bioremediation Removal of all contaminated soil enhanced bioremediation Benefit score: 15 $2.4 million Benefit Score: 16 $7.0 million Benefit Score: 19 $5.2 million Benefit Score: 22 $7.4 million

23 Harmless

24

25 Bulkhead Area Benzene Area Smear zone Concrete Pad Area

26 Cleanup Area During construction After construction Bulkhead excavation area Concrete pad excavation area Benzene groundwater area Remaining smear zone soil Excavation of vadose and smear zone soils to cleanup levels Bioremediation Excavation of vadose soils to cleanup levels and smear zone soils to remediation levels Bioremediation Bioremediation injections Monitoring of soil and groundwater Additional bioremediation through injections or infiltration galleries Monitored/enhanced natural attenuation of remaining soils

27 Cleanup Area During construction After construction Former stack area Excavate and relocate Pentachlorophenal area Hog fuel storage areas Excavation and disposal off-site Excavation and disposal off-site Log pond area Institutional Controls, Further studies

28 Implements the Cleanup Action Plan o Task 1: Engineering Design Report o Task 2: Construction o Task 3: Groundwater and soil monitoring o Task 4: Log pond fill area investigation o Task 5: Institutional controls o Task 6: Progress reports Outlines schedule

29 Action Finalize RI/FS, CAP and AO Draft Engineering Design Report (EDR) Final EDR Construction Construction completion report Install wells and recheck groundwater Quarterly GW monitoring Due Date and Triggering Event After public comment period 60 days after signature of AO and final CAP 30 days after Ecology comments Begin within 120 of EDR approval 90 days after construction Within 90 days after construction Begins within 14 days after wells installed Estimated Calendar dates May/June 2015 August 2015 (May 2015) October 2015 (June 2015) March 2016 (August 2015) September 2016 December 2016 January 2017

30 Action Long term monitoring Draft log pond fill study Final log pond fill study Supplemental investigation of log pond Draft Environmental Covenant Quarterly and Annual Report Five year reviews Due Date and Triggering Event Every 5 years for soil, according to monitoring plan for GW. 90 days prior to lease end 30 days after receipt of Ecology s comments Begin within 60 days of removal of log debarker 30 days after construction completion report approved Quarterly for 2 years, then annual 5 years after covenant recording Estimated Calendar dates Until cleanup levels are met Late 2016 Early 2017 Spring 2017 October until end Every 5 years

31 SEPA Determination of Nonsignificance Public Participation Plan

32 April 2 May 4, 2015 Agreed Order Draft Cleanup Action Plan (CAP) Remedial Investigation/Feasible Study (RI/FS) State Environmental Policy Act (SEPA) review Public Participation Plan Send written comments to Site Manager Connie Groven through May 4, 2015 Connie.Groven@ecy.wa.gov Questions?