Report The Boeing Company

Report Group 10 – Southern Undeveloped Area RCRA Facility Investigation Report Santa Susana Field Laboratory Ventura County, California Group 10 Debris Survey Appendix C Prepared for: The Boeing Company March 2009 SCO/APPENDIX_C_TEXT_DTSC-V01.DOC Contents Section Page Appendix C.......................................................................................................................................... 1 C.1 Introduction................................................................................................................ 1 C.2 Purpose and Scope .................................................................................................... 1 C.3 Methodology .............................................................................................................. 2 C.4 Sampling and Analysis ............................................................................................. 3 C.5 References................................................................................................................... 3 Tables C-1 Group 10 Debris Areas Figures C-1 C-2 Debris Survey Coverage – Group 10 Debris Areas – Group 10 Attachments C-1 Photographs SCO/APPENDIX_C_TEXT_DTSC-V01.DOC I Acronyms and Abbreviations bgs Boeing DOE DTSC GPS MWH NASA PAH PCB RBSL RCRA RFI SSFL TPH VOC below ground surface The Boeing Company United States Department of Energy Department of Toxic Substances Control global positioning system MWH Americas, Inc. National Aeronautics and Space Administration polynuclear aromatic hydrocarbon polychlorinated biphenyl risk-based screening level Resource Conservation and Recovery Act Resource Conservation and Recovery Act Facility Investigation Santa Susana Field Laboratory total petroleum hydrocarbons volatile organic compound SCO/APPENDIX_C_TEXT_DTSC-V01.DOC III Appendix C – Group 10 Debris Survey C.1 Introduction This appendix presents the results of the Group 10 debris survey activities performed in 2008 at the Santa Susana Field Laboratory (SSFL) in Ventura County, California. The project was performed to support the Resource Conservation and Recovery Act (RCRA) Facility Investigation (RFI) Program at SSFL. The debris survey included the entire SSFL and was performed as a joint effort by CH2M HILL and MWH. Each consultant performed the survey activities for select RFI groups, as summarized below: • • CH2M HILL: Groups 1B, 2, 3, 4, 5, 7, 9, and 10 MWH: Groups 1A, 6, and 8 Activities associated with the debris survey and subsequent sampling was performed in accordance with the Standard Operating Procedure for Onsite Debris Survey and Sampling Methodology (CH2M HILL and MWH, 2008). The information presented in this appendix is limited to Group 10 and only includes debris areas that were identified during the 2008 debris survey activities. Debris survey information for the other groups will be provided in their respective group reports. C.2 Purpose and Scope The purpose of the debris survey was to conduct systematic visual inspections of the SSFL for surficial evidence of solid waste disposal (referred to herein as debris areas) and sampling for chemical analytes at the debris areas. Types of solid wastes that were targeted as part of this survey included, but were not limited to, the following: • • • Containers, including cans, bottles, drums, and tanks. Soil piles with intermixed debris, including concrete, asphalt, metal or wood debris. Hummocky terrain areas that may indicate historic dumping of soil. Note that some areas at SSFL, particularly in the undeveloped portions of the facility, have evidence of soil mounding that appears to be associated with firebreak grading performed during recent wildfire events (e.g., the 2005 Topanga Fire). These areas would not typically be identified as debris areas. Building demolition debris, including pieces of broken concrete or asphalt pavement. Note that small, scattered pieces of concrete and/or asphalt unassociated with a debris or soil pile are not typically identified as debris areas. Wood debris and pipe segments, including metal, transite, clay, and plastic. • • SCO/APPENDIX_C_TEXT_DTSC-V01.DOC 1 • • Skeet target (clay pigeon) fragments. Miscellaneous other non-household-type debris. This debris survey was not intended to address the following types of features: • • • • Household-type debris (e.g., food containers) Features consisting solely of nonhazardous items such as concrete, asphalt, and rebar and other inert metal piles(i.e., items are not intermixed with soil). Areas with materials of known origin and quality (i.e., no hazardous substances present), or material stockpile areas that are being actively managed. Areas with buried debris potentially present, but with no indications on the ground surface based on visual inspection. Debris identified as potentially hazardous or as being a potential source of contamination will be considered for further evaluation in the RFI sampling programs. Specific recommendations for further evaluation, including sampling as appropriate, are discussed in Section C.4. Note that household-type debris (such as food containers and other nonhazardous wasterelated items) was not targeted in the debris survey. As a general site-wide housekeeping effort, however, the debris survey crews collected small volumes of household-type waste where encountered, which was subsequently disposed of offsite with the regular municipal wastes generated at SSFL. C.3 Methodology The debris survey was conducted as a pedestrian survey inspection of the visible ground surface. Prior to conducting fieldwork, the survey crews reviewed information relevant to the survey task (such as previous SSFL debris area survey reports and other relevant historical documents, and aerial photographs). The field survey teams consisted of two individuals: one consultant staff and one SSFL facility maintenance staff (subcontracted by Boeing). The survey crews followed predetermined transects approximately 50 feet apart and visually scanned the ground surface for evidence of debris. Closer transect spacing was used, as appropriate, based on ground conditions encountered. For example, closer attention was given to densely vegetated areas and drainages to achieve thorough visual inspection. Survey teams utilized global positioning system (GPS) equipment to accurately navigate within the survey area and record the location of debris areas. Some areas of the SSFL could not be safely accessed due to the presence of steep terrain and rock outcrops. These areas are illustrated in Figure C-1. During the survey, the inaccessible areas were visually inspected (typically using binoculars) from the nearest vantage point and documented accordingly. The locations and descriptions of the debris sites were documented using hand-held GPS units that were preprogrammed with data dictionaries to enable efficient data collection. The units also allowed keyed entry of debris descriptions that were not included in the data APPENDIX_C_TEXT_DTSC-V01.DOC 2 dictionary. Debris sites that were approximately 100 square feet or less in size (that is, less than approximately 10 feet by 10 feet) were recorded with a single set of GPS coordinates. Debris areas larger than 100 square feet were documented with the GPS unit by recording the visible surface perimeter of the debris site. Figure C-2 presents the locations of the debris areas identified. Digital cameras were used to photograph each debris area identified. Attachment C-1 presents the photographs of the debris areas. C.4 Sampling and Analysis Based on field observations collected during the debris survey, each debris area was evaluated to determine whether further evaluation as part of the RFI was warranted (that is, sampling and analysis). Table C-1 presents sampling determinations for each debris area. Soil samples were analyzed for the RFI screening suite: VOCs, polynuclear aromatic hydrocarbons (PAHs), total petroleum hydrocarbons (TPH), and metals. The sampling results for the debris areas are presented in Section 3 of the Group 10 RFI Report. C.5 References CH2M HILL and MWH, 2008. Standard Operating Procedure for Onsite Debris Survey and Sampling Methodology, Santa Susana Field Laboratory, Ventura County, California. October. SCO/APPENDIX_C_TEXT_DTSC-V01.DOC 3 Tables SCO/APPENDIX_C_TEXT_DTSC-V01.DOC Table C-1 Group 10 Debris Areas Group 10 RFI Report, Appendix C - Debris Survey Estimated Coordinates1 Number of Debris Sampling Sampling Area Size Northing Easting Performed? Locations (sq. ft.) < 100 262697.898 1790702.517 1 Yes Debris Area Identifier CH2-G10-1005 Date of Discovery 2/6/2008 Description Open top and bottom 55-gallon drum (empty) with white lining located within stream. CH2-G10-2006 2/7/2008 Seven soil piles intermixed with concrete, metal pipe, PVC pipe, wood, scrap metal and plastic. 4,093 261180.558 1791777.981 Yes 7 Sampling Grab sampling within drainage channel downstream of drum location. Grab sampling. Analytes Comments/Sampling Rationale Screening Sampling at this debris area was performed as part of the sampling activities for the Central Drainage Channel. A soil Suite sampling location was positioned directly downstream of container location. Screening Some of the stockpiled materials appeared to be Suite associated with road construction. One grab sample was collected from inside each soil pile. Stockpiled materials were removed in November 2008 as part of RFI and confirmation soil samples collected beneath select piles. Screening Potential releases from the containers would have likely Suite migrated downslope. Therefore, soil samples were collected at one location positioned at the nearest accessible area downslope from the containers. Soil vapor samples were planned but due to shallow bedrock soil vapor samples could not be collected and only the shallow soil sample at 1 foot bgs could be collected. Screening One grab sample was collected from below the surface of Suite the soil pile. CH2-G10-2019 2/8/2008 Two 55-gallon drums (empty), metal pipe, scrap plastic and broken concrete pipe. < 100 261871.436 1792520.610 Yes 1 Direct Push soil sample. Soil vapor was not able to be installed due to shallow bedrock. CH2-G10-2026 2/11/2008 Soil pile intermixed with concrete and tar. Source of materials is unknown. However, feature is situated along the southern SSFL boundary and the materials may have originated from an offsite source (e.g., nearby residence). Possible soil pile; steel cable present. < 100 260781.352 1792140.393 Yes 1 Grab sampling. CH2-G10-2041 2/13/2008 < 100 263094.748 1796852.264 No NA NA NA No sampling performed based on small pile size (less than 5 cubic yards) and no evidence of intermixed debris. Notes: This table does not include debris areas that were identified in previous waste debris surveys. Photographs of the debris areas are attached and are labeled by the Debris Area Identifier provided in this table. 1 Northing and Easting coordinates are in State Plane Zone 5, NAD 27. Coordinates are provided for the approximate center point of identified waste debris features. bgs - below ground surface ft - foot sq ft - square feet Sampling Notes: Screening Suite: VOCs, PAHs, TPH, metals SV = soil vapor (5 and 10 feet bgs unless otherwise noted) SS = shallow soil (0, 5, 10 feet bgs unless otherwise noted) Tables_C.1_v02.xls Page 1 of 1 Figures SCO/APPENDIX_C_TEXT_DTSC-V01.DOC UNDEVELOPED LAND NPDES Outfall 010 Group 6 OCY NPDES Outfall 003 RMHF NPDES Outfall HWMF SRE 004 DOE LF 1 B204 ELV NPDES Outfall 009 NASA Area II Landfill LOX B-1 Group 7 NCY B515 STP Ash Pile Group 2 ABFF NPDES Outfall 014 Area I Landfill APTF Building 359 Happy Valley IEL Group 8 NPDES Outfall 005 FSDF NPDES Outfall 006 Building 56 Landfil SNAP DOE LF 2 HMSA PDU SE Drum Group 7 Silvernale SPA HWSA WCT NPDES Outfall 013 Bravo NPDES Outfall 012 Alfa LETF/CTL-I Group 1a NPDES Outfall 007 Boeing LF B100 RIHL EEL DOE LF 3 STP Pond Compound A ECL Group 3 ESADA AREA III CDFF AREA II AREA I Group 1b R-1 Pond Bowl Canyon Happy Valley Pond Dredge AREA IV STL-IV NPDES Outfall 008 Group 5 R-2 Ponds NPDES Outfall 018 PLF Coca Delta Group 4 CTL-V CTL-III Perimeter Pond NPDES Outfall 019 A1 BP NPDES Outfall 011 Group 9 UNDEVELOPED LAND Group 10 NPDES Outfall 002 NPDES Outfall 001 Basemap Legend RFI Group Boundary Administrative Area Property Boundary RFI Site - Boeing RFI Site - DOE RFI Site - NASA OF ( ! Streams Pond Surface Drainage Divide Accessible areas surveyed using transects Inaccessible areas due to steep topography or dense vegetation, surveyed remotely SANTA SUSANA FIELD LABORATORY Debris Survey Group 10 RFI Report Outfalls Road - Asphalt Roads - Dirt I 0 1,200 March 12, 2009 Feet 2,400 \\..RFI_10\Basemap\RFIGrp10_DebrisSurvey_BL.mxd FIGURE C-1 RFI Group Storage 7 DOE LF 2 Building 56 Landfil SNAP HMSA 4504 Scrap 4506 Parking 12 DOE LF 1 TH ST B ST ST 4536 G PDU Parking T GS 10 ST 24 ST RFI B100 Group 4509 RIHL 8 Parking H ST 22 ST FSDF F ST 4501 Parking Metals 4502 F ST 17th Street Drainage Area Clarifier Parking 4538 0 Parking SE Drum B29 RFI Group 6 SPA ABFF HWSA WCT BR Alfa 22 ST Boeing LF 2 ST ST RD TE A E AR ECL Silvernale RFI Group 2 APTF Building 359 LETF/CTL-I CANYO N RD Happy Valley Happy Valley O AV Bravo D RFI Group 3 R Canyon Pond Dredge 4520 Parking 92) Parking J ST DOE LF 3 4573(81- L ST 4573(6275) Parking RFI Group 5 EEL STP Pond Compound A R-1 Pond CDFF R-2 Ponds PLF SKYLINE DR Borrow Pit Delta R TA EL D ROCA RD AR E CTL-V RFI Group 9 A1 BP Perimeter Pond CTL D RFI Group 4 Coca A D III RD STL-IV RFI Group 1b Bowl RFI Group 1a IR Group 10 Boundary S 24 T CTL-III H NC RA CT ON JE NS RO MA T P AH EN ER PM RM LO FODEVE Waste Debris Area* RFI Site Boundary RFI Group Boundary Administrative Area Property Boundary 2041 1005 20 19 2006 2026 Basemap Legend Building - Existing Building - Removed Building - Not Yet Determined Excavation Roads - Dirt Road - Asphalt Surface Drainage Divide Streams Pond Debris Areas - Group 10 SANTA SUSANA FIELD LABORATORY 1 inch equals 1,000 feet March 3, 2009 Rocks Note: * This figure displays the last four digits of the waste debris identifier listed in Table K-1 I 0 1,000 Feet 2,000 \\..RFI_10\Basemap\Group10Report\ RFIGrp10_Debris_BL.mxd FIGURE C-2 Attachments SCO/APPENDIX_C_TEXT_DTSC-V01.DOC Debris ID: CHB-G10-1005. Debris ID: CHB-G10-1005. Group 10 Photographs Debris ID: CHB-G10-2006. Debris ID: CHB-G10-2006. Group 10 Photographs Debris ID: CHB-G10-2019. Debris ID: CHB-G10-2019. Group 10 Photographs Debris ID: CHB-G10-2026. Debris ID: CHB-G10-2026. Group 10 Photographs Debris ID: CHB-G10-2041. Debris ID: CHB-G10-2041. Group 10 Photographs