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Home My WebLink AboutDSHW-2018-005147 - 0901a0688083d883VT 045 2& 7 I rl Div of Waste Management and Radiation Control JUN -6 2018 DS14\14- 2016 - 005 I 4-1 June 4, 2018 Scott Anderson, Director Waste Management and Radiation Control 195 North 1950 West Salt Lake City, Utah 84116 RE: Big West Oil, LLC North Salt Lake Refinery RFI, Work Plan for SWMU 35 Debris Removal and Disposal Mr. Anderson, Please find enclosed the Debris Removal and Disposal Work Plan for SWMU 35 as requested by Rolf Johnsson. We anticipate completing this work this summer as the area collects storm water runoff and is only accessible when dry. Please contact me with any questions or concerns at (801) 755- 7403 or at molly.gregersen@bigwestoil.com . Sincerely, Mo ly Greg rs in, P.G. Environmental Specialist Div of Waste Management and Radiation Control JUN -6 2018 Debris Removal and Disposal Work Plan RFI SWMU 35 Big West Oil North Salt Lake Refinery EPA ID: UTD045267127 Prepared for: 40b est Oil „ 333 West Center Street North Salt Lake, UT 84054 Prepared by: ohnston Leigh Jiic. 6205 View Drive Park City, UT 84098 May 21, 2018 Debris Removal and Disposal Work Plan, RFI SWMU 35 Big West Oil North Salt Lake Refinery Table of Contents Acronyms and Abbreviations ii 1.0 Introduction 1 1.1 Purpose and Objective 1 1.2 SWMU 35 Description 1 2.0 SWMU 35 Investigation 2 2.1 Characterization 2 2.2 Excavation 2 2.3 Groundwater 2 2.4 Disposal 3 2.5 Backfill 3 3.0 Reporting 4 4.0 References 5 FIGURES Figure 1 - Big West Oil North Salt Lake Refinery Location Map Figure 2 - SWMU 35 Potential Buried Debris Map Figure 3 - Boring Log SB40 at SWMU 40 TABLES None APPENDIX None BWO RFI Phase I SWMU 35 Debris Removal Work Plan, May 21, 2018 Debris Removal and Disposal Work Plan, RFI SWMU 35 Big West Oil North Salt Lake Refinery RCRA Resource Conservation Recovery Act RIFS Remedial Investigation Feasibility Study RFI RCRA Facility Investigation RSL Regional Screening Levels SAP Sampling and Analyses Plan SC Specific Conductance SCR Site Characterization Report SMP Site Management Plan SPLP Synthetic Precipitation Leaching Procedure SVOC semi volatile organic compounds SWMU Solid Waste Management Unit TCC Thermal Catalytic Cracking TCLP Toxicity characteristic leaching procedure TDS Total Dissolved Solids UNEV Utah Nevada Pipeline UST Underground Storage Tank US EPA United States Environmental Protection Agency VOC Volatile organic compounds WMRC Waste Management and Radiation Control WW Waste Water BWO RFI Phase I SWMU 35 Debris Removal Work Plan, May 21, 2018 Debris Removal and Disposal Work Plan, RFI SWMU 35 Big West Oil North Salt Lake Refinery Acronyms and Abbreviations AOC Area of Concern API American Petroleum Institute AST Above Ground Storage Tank BWO Big West Oil, LLC CERCLA Comprehensive Environmental Response, Compensation, and Liability Act COCs Compounds of Concern CCR Current Conditions Report Cond Conductivity DAF Dissolved Air Floatation DERR Utah Division of Environmental Response and Remediation DSHW Division of Solid and Hazardous Waste DO Dissolved oxygen DRO Diesel Range Organics DW Drinking Water EPA Environmental Protection Agency ESC Environmental Science Corporation FEMA Federal Emergency Management Act HC Hydrocracking HQ Hazard Quotient GRO Gasoline Range Organics Husky Husky Oil Corporation ISL Initial Screening level LTA Land Treatment Area JLI Johnston Leigh, Inc. MCL Maximum Contaminant Level MSCC Millisecond Catalytic Cracking NFA No Further Action O&G Oil and Grease ORP Oxidation reduction potential PID Photo ionization detector POD Points of diversion POTW Publicly Owned Treatment Works QAPP Quality Assurance Project Plan RBCA Risk Based Corrective Action BWO RFI Phase I SWMU 35 Debris Removal Work Plan, May 21, 2018 Debris Removal and Disposal Work Plan, RFI SWMU 35 Big West Oil North Salt Lake Refinery 1.0 Introduction During the Phase I RCRA Facility Investigation (RFI) at the Big West Oil Inc. (BWO) North Salt Lake refinery (Figure 1), potential buried metallic debris was identified at Solid Waste Management Unit (SWMU) 35 based on Ground Penetrating Radar (GPR) signature recorded during the subsurface utility screening investigation. SWMU 35 is potentially one or two former excavations that can be seen in a 1966 aerial photograph just north of the ditch to Cudahy Drain (SWMU 40) and adjacent to the former lime solids repository. 1.1 Purpose and Objective The purpose of this work plan is to outline the procedures to characterize and remove the potential buried debris for offsite disposal. The objective of the work plan is to sample the soil and groundwater for compounds of concern (COCs) established in the RFT Phase I Work Plan (JLI, 2017) and any additional COCs that may be present based on the characterization of the debris. The end goal of the work described below is clean closure of SWMU 35 by meeting residential Risk Screening Levels (RSL). 1.2 SWIM 35 Description SWMU 35 is located west of the developed refinery property in an undeveloped field (Figure 2). As a precaution, the sample locations at SWMU 35 were not investigated during Phase I. The extent of the buried debris as identified by the GPR survey is shown on Figure 2. The soil lithology just west of SWMU 35 as characterized by the boring log of SB40 (Figure 3) at SWMU 40, consists of clayey silt and silty clay to approximately five feet BGS, underlain by saturated silty sand interbedded in moist silty clay to a depth of approximately 15 feet BGS. Groundwater is encountered at approximately 4-5 feet BGS and may rise up to near ground surface. BWO RFI Phase I SWMU 35 Debris Removal Work Plan, May 21, 2018 Debris Removal and Disposal Work Plan, RFI SWIV1U 35 Big West Oil North Salt Lake Refinery 2.4 Disposal The debris and impacted soil will be disposed of at an offsite permitted facility. At this time, the waste stream constituents are unknown. The disposal facility will be determined by the analytical reports. All packaging, marking, labeling, paperwork, transportation, and disposal will follow EPA, Department of Transportation, and governing state rules and laws. 2.5 Backfill The excavation will be backfilled with the stockpiled soil if the soil meets residential RSL values. If not, clean backfill material will be used to backfill the excavation. Imported backfill material will be tested for the RFI Phase 1 Work Plan (RI, 2017) COCs to verify they do not contain any of the COCs above residential RSL values. BWO RFI Phase I SWMU 35 Debris Removal Work Plan, May 21, 2018 3 Debris Removal and Disposal Work Plan, RFI SWMU 35 Big West Oil North Salt Lake Refinery 2.0 SWMU 35 Investigation The procedures described below may change in the field depending on the nature of the debris and analytical results. However, soil sampling and groundwater monitor well installation (if needed), and Standard Operating Procedures (SOPs) would follow the RFI Phase 1 Work Plan (JLI, 2017). 2.1 Characterization The potential debris (debris) will be exposed by excavating the overlying soil. The depth to the top of the debris is estimated at 4-5 feet BGS based on the GPR signature. The soil will be placed temporarily in the former lime settling pond footprint located just east of SWMU 35 (Figure 2). The soil will be placed on plastic sheeting that will be placed over the existing pond berm as a precaution. The debris will be exposed to allow adequate visual identification and then perform the necessary procedures to characterize for hazardous waste constituents. The soil surrounding the debris will be removed to allow for offsite disposal. All the soil will be temporarily stockpiled on the plastic bermed sheeting in the former lime settling pond. The stockpiled soil will be sampled for potential hazardous waste compounds detected or suspected in the debris in addition to the RFI Phase 1 Work Plan (JLI, 2017) COCs including; • 'MC using EPA Methods 8260B and 8260B SIM; • SVOC using EPA Method 8270C and 8270C SIM; • RCRA metals using EPA Methods 7471 (mercury), 6010 and 6020 (selenium). Once the COCs have been determined at SWMU 35, the soil and groundwater at SWMU 35 will be tested for these constituents. Soil will be removed, if needed and feasible, to meet residential RSL values as described below. 2.2 Excavation It is anticipated that the soil at SWMU 35, if impacted, is limited in extent based on the non-detect values measured for the RFI COCs at SWMU 40 adjacent to SWMU 35. However, if soil is impacted the extent will be defined. If soil removal is feasible to obtain a clean closure, the extent of the potential soil impacts would be defined using a push probe rig and continuous core samples. Excavation below 4-5 feet BGS would be below the first encountered groundwater zone (Figure 3). One 21,000-gallon storage tank will be used to containerize groundwater removed from the excavation to facilitate soil removal below groundwater, if needed. The potential impacted soil would be removed and confirmation soil samples would be collected from the excavation walls and floor. 2.3 Groundwater Groundwater monitor well(s) would be installed following the procedures performed during the Phase I field investigation if impacted soil is identified. If needed, at least three 2-inch diameter groundwater monitor wells would be installed and sampled in accordance with the procedures outlined and for the COCs summarized in the RFI Phase 1 Work Plan (JLI, 2017). Additional analytes would be added to this list if results from the debris characterization warrant the inclusion. SWMU 35 Workplan May 2018.Doex 2 Debris Removal and Disposal Work Plan, RFI SWMU 35 Big West Oil North Salt Lake Refinery 3.0 Reporting The results of the SWMU 35 debris removal and disposal will be documented in an addendum to the Phase I RFI report. The investigation procedures used will be described and the findings will be presented in text, table and figure formats, and the laboratory analytical reports will undergo the quality assurance/ quality control evaluation as described in the RFI Phase 1 Work Plan (JLI, 2017). Photographic documentation will be provided to document the debris removed. All disposal documentation including waste manifest, tipping and certifications of disposal documents will be included in the report. The report would be submitted to State of Utah Department of Waste Management Radiation Control (WMRC) for review and comment before preparing the report for final distribution. BWO RFI Phase I SWMU 35 Debris Removal Work Plan, May 21, 2018 4 Debris Removal and Disposal Work Plan, RFI SWIVIU 35 Big West Oil North Salt Lake Refinery 4.0 References Johnston Leigh Inc., 2017. RFI Phase I Work Plan Big West Oil North Salt Lake Refinery, EPA ID UTD045267127. June 8, 2017. Johnston Leigh Inc., 2018. RFI Phase I Investigation Report, Big West Oil North Salt Lake Refinery, EPA ID UTD045267127. March 28, 2018. BWO RFI Phase I SWMU 35 Debris Removal Work Plan, May 21, 2018 5 Debris Removal and Disposal Work Plan, RFI SWMU 35 l3ig West Oil North Salt Lake Refinery FIGURES 0 2000 4000 ILE ...RED BY PJS 1/30/2018 \,SEINAUE , North $al • ••• O ., BIG WEST OIL REFINERY • • wage ipCsa CUDAHY IS , IF A 4 1 Gravel Pr 8C»IN8VILL SEIPPI Sit ,p1NA Coni rnrin cat <)n Towers fl f' ks 42-ti 131-1A17f- SCALE IN FEET St,Johnston Leigh Inc. (801) 726-6845 FIGURE 1-1 BWO Refinery and Location Map RFI Phase 1 Report BIG WEST OIL, LLC NORTH SA1 T AKE. UT Tr77000RATC" TOPO: USGS SALT LAKE CITY NORTH 7.5 MINUTE QUADRANGLE, 1975 REVISED BY USDA FOREST SERVICE 1998 2015 AERIAL PHOTO 05/09/2018 FIGURE 2 SWMU DETAILS SWMU 35 SWMU 35 DEBRIS REMOVAL WORK PLAN NORTH SALT LAKE REFINERY } SCALE IN METERS FIGURE 3 l lofinstoonL6-615fi ml) 72 BORING LOG SB40 SWMU 40 SWMU 35 DEBRIS REMOVAL WORK PLAN 05/09/2018 NORTH SALT LAKE REFINERY ..)) r Johnston Leigh, Inc. georosiefflybosidosist t„ Johnston Leigh Inc.. 6205 View Oita Tar€City, VT 84095 ,"" (WI) 726-6845 --, BORING LOG BOREHOLE NO.: SB40-1 Well 40-1 TOTAL DEPTH: 15 PROJECT INFORMATION DRILLING INFORMATION PROJECT: BWO Phase I SITE LOCATION: North Salt Lake, UT JOB NO.: 21883 LOGGED BY: Leigh Beem, P.O. PROJECT MANAGER: Leigh Beem, P.G. DATES DRILLED: lo/6/17 DRILLING CO.: Earthprob e DRILLER: Pat Casey RIG TYPE: 7822DT METHOD OF DRILLING: Push Probe SAMPLING METHODS: 3.5" Macro Core SAMPLE CORE 2.25" diameter, 5' length Easfing -111,9254399 Ground Elevation Northing 40.83957129 Wellhead Elevation 4225.720 DEPTH feet SOIL LI CS SOIL DESCRIPTION SAMPLE ID LIE R E% 1 PID pprn WELL COMPLETION :=:: C layey Silt: moist, browri. 5540-1 p. 1: c : DE : X 7= : 'X : X . x.. . .. Mt. a- ' — :=:=:: :,.... ......!, A horizon e soil. • • • Oki i 1 - Concrete Plug . ' - Surface Vault ' Bentonite Seal lt: Silty Clay: moist, red — .. CL brown, with trace fine sand. S840-1 4-5 SM Silty Sand: wet, tan, fine medium sand. ,Lo CL Silty Clay: moist, brown, with trace interbedded green gray fine sand. 10/20 Fitter Sand \ 3: Silty Sand: wet, green • \ 2" PVC Pre-pack. 1-. 3: 3 SM , we gray. fine sandll bedded. 5840-1 9-19 - t•:.• 0.010" wide slots F CL Silty Clay: moist, dark gray, with interbedded thin sand beds. it s • . ___J silty Sand: wet, gray, ver0 sm fine sand. . - . ..:... CL Silty Clay: moist, dark gray, with interbedded thin sand beds. - End Plug NOTES: Saturated zone defined by blue icon left side of log . Page 1 of 1