22-20 Exhibit-Authorizing Matrix to Utilize Supplemental HDSRF Grant Funding to Complete the Remedial Investigation at the Selecto Flash.pdf

ng much of the Site to DIGWSSL, and/or SS-IGWSRS. Additional soils sampling and analysis will allow Matrix to complete the horizontal delineation of CVOC impacted soil. Soil sampling will also be completed for site specific soil characteristics for use in the SESOIL model. The supplemental soil investigation will include the collection of up to 8 soil samples in one mobilization of a direct push rig. Soil cores will be collected in five-foot intervals with dedicated acetate sleeves. Prior to initiating the RI activities, New Jersey One Call will be notified. Upon retrieval of soil cores, subsurface materials will be visually inspected, screened with a photo-ionization detector (PID) [MiniRae parts per billion (ppb) meter] for organic vapors and logged for material content and lithology. The soil borings will be advanced to approximately 10 to 15 feet below grade surface (ft bgs). The samples will be analyzed for Target Compound List (TCL) VOCs+15. ! i Three samples will be collected at varying depths and be submitted for sieve with hydrometer analysis. i Groundwater Investigation Based on groundwater sampling activities at the Site to date, PCE and TCE were identified at concentrations above the NJDEP GWQS. An additional round of groundwater sampling and analysis will allow for better development of the Conceptual Site Model and the position and magnitude of the subject Site groundwater plume in relation to the various comingled CVOC plumes associated with the Site and the Orange Valley Groundwater Superfund Site. This data will help determine whether what the most applicable remedial action will be for the groundwater contamination. F:\2017\17-296 Selecto Flash PA_SI\Proposa1\2020\HDSRF SelectoFlash RI RAWP SOW Rev 1 .doc

i ! Supplemental HDSRF Application Page 4 of 5 Selecto Flash, Inc.___________ The groundwater investigation will include the gauging of all on-site monitoring wells (MW-1R, MW-2, MW-3R, MW-4, MW-4D, MW-5R, MW-7, and MW-8R) and off-site monitoring wells (MW-6, MW-9, MW-9D, MW-10, MW-11, and MW-11D). One additional round of groundwater samples will be ! collected from the on-site and off-site monitoring wells via low flow sampling technique. During purging, field measurements including depth to groundwater, dissolved oxygen content, turbidity, pH, temperature, conductivity, and ORP will be collected for all monitoring wells. The groundwater samples will be analyzed for TCL VOCs+15. For QA/QC purposes, one duplicate sample and up to three field blanks will be collected and analyzed for TCL VOCs+15. One trip blank sample will be collected for TCL VOCs+15 analysis, per groundwater sampling event. In addition, the repair of up one shallow overburden monitoring well and abandonment of up to three ; monitoring wells (damaged monitoring wells) are budgeted. The cost estimates also include the management and disposal of the soil cuttings and well development water for all the monitoring wells installed on the Site. The disposal of non-hazardous investigative derived waste (IDW), up to 22, 55- gallon drums, is included in this cost estimate. Following the installation of any additional monitoring wells, the wells will be surveyed. Vapor Intrusion This estimate includes funds for the VI investigation of three properties that are within 100 feet of the Selecto Flash Site. Based on discussions with the LSRP for the adjacent Biddelman, Inc. Property (SRP PI No. G000006148), Mr. Joseph T. Jacobsen, a VI investigation was completed for several of the homes surrounding the Biddleman Site, and Matrix will be obtaining copies of this documentation from NJDEP. However, We do not anticipate that there will be overlap between the Biddelman VI investigation and the proposed Selecto Flash VI investigation. The original RI SOW

from NJDEP. However, We do not anticipate that there will be overlap between the Biddelman VI investigation and the proposed Selecto Flash VI investigation. The original RI SOW included the collection of three samples only. There are currently three homes located within the 100 foot trigger distance from the exceedances to the VI GWSL at Selecto Flash and a total of nine samples is anticipated. These samples will be analyzed for TO-15 (NJDEP-SRP Low Level USEPA TO-15 Method). In addition, a vapor intrusion evaluation and report will be completed, which includes NJDEP Full Data Deliverables Form. Remedial Investigation Report and Remedial Action Workplan The results will be reported as part of the Remedial Investigation Report (RIR). The report will be prepared in accordance with N.J.A.C. 7:26E-4.8. The RIR will discuss the results of the sampling and will include the following: ; Results of all analyses, copies of laboratory data sheets and conversion of the laboratory '! deliverable to the required electronic data deliverables pursuant to N.J.A.C. 7:26E-2.1; ! A summary table of analytical methods and quality assurance indicators pursuant to N.J.A.C. 7:26E-2.2; Sample summary tables of all analyses, including sample location, media, sample depth and field and lab identification numbers pursuant to N.J.A.C. 7:26E-3.13(c)3. The summary tables will i identify contaminant concentrations exceeding the applicable remediation standards, samples with elevated reporting limits (RLs) exceeding their applicable remediation standard will be identified and explained, and the remaining requirements pursuant to N.J.A.C. 7:26E-3.13(c)3 will be met; ! Field data from each sampling point, including field instrument readings for each sample will be generated and presented in the Summary Report;

Field data from each sampling point, including field instrument readings for each sample will be generated and presented in the Summary Report; Figures will be prepared indicating the results of all sampling events. Figures will identify contaminant exceedances above their respective remedial standard by contaminant and depth; i F:\20i7\17-296 Selecto Flash PA_SI\ProposaI\2020\HDSRF SeJectoFlashRI RAWPSOWRev 1 .doc ! i

i ¡. i V '■ : Supplemental HDSRF Application Page 5 of 5 ■. Selecto Flash, Inc.____________ t i • A Quality Assurance Project Plan (QAPP) prepared pursuant to N.J.A.C. 7:26E-2.2; and : • Submit a completed case inventory document worksheet and other NJDEP required forms. Following the completion of the RI, and evaluation of a remedial options, Matrix will prepare a Remedial Action Workplan (RAWP) for approval to the NJDEP pursuant to N.J.A.C. 7:26E-5.5. The purpose of the RAWP will select a remedial action(s) that will prevent further expose of any receptor to residual : contamination and include a presumptive remedy consistent with Table 5-1 Presumptive Remedies for ; Soil Contamination at Schools, Child Care Centers and Residences. The remedial action for the historic ! fill material underlain at the Site with soil concentrations exceeding both residential and non-residential ! direct contact soil remediation standards will include filing a Deed Notice pursuant to NJA.C. 7:26C- ' * ■ 7.2. ; ! ! ! •: ; i i ; , ' i I. : ¡ ! F:\2017\17-296 Selecto Flash PA_SI\Proposal\2020\HDSRF SelectoFlash RI RAWP SOW Rev 1 .doc

! * MATRIXM1 WORLD Engineeri ng Progress ! :! I f í i ATTACHMENT B 1 Itemized Cost Estimate - RI/RAWP Supplemental Request, October 31, 2019 ! ! I ; l : 1 i j i i ! : ! ■ ‘ I ■' Í ■ i ’■ ; l

■ i ’■ ; l ■ F:\2017\17-296 Selecto Flash PA_SI\Proposal\2020\SelectoFlash Proposal for Supplemental HDSRF RI Work 01062020.docx

Itemized Cost Estimate - RI/RAWP Supplemental Request - October 2019 Selecto Flash, Inc. (Block 9, Lot 36) - PI No. 027054 ; West Orange, Essex County, New Jersey ! Matrix New World Engineering New Jersey Department of Environmental Protection .i ftAX Site Remediation Program ■ i '! V HDSRF APPLICATION - COST ESTIMATE - PART I SECTION I - AS* PROPOSED RI/RAWP SUPPLEMENTAL REQUEST > OCTOBER 2019 Supplemental Activity Rate Unit Quantity HDSRF Grant f Application Task No.l - REMEDIAL INVESTIGATION Task No. 1A - MIP Snrvey/Direct Push/Hollow Stem Auger Drilling Well Abandonment (Up to three wells) $690.00 well 3 $2,070.00 Task No.l A -Geoprobe/Drilling $2,070.00 Task No. 1C - IDW Disposal ID27 TCLP/RCRA $1,265.00 per sample 2 $2,530.00 Transportation $633.00 per event 2 $1,266.00 Disposal $113.00 Drums 22 $2,486,00 Task No, 1C - IDW Disposal $6,282,00 Task No. ID - Off-Site Vapor Intrusion (If required) Full Data Deliverable $271.00 per event 3 $813.00 VO+TICs, naphthalene

por Intrusion (If required) Full Data Deliverable $271.00 per event 3 $813.00 VO+TICs, naphthalene (TO-15) - soil gas $271.00 per sample 9 $2,439.00 VO+TICs, naphthalene (TO-15) - IA $271.00 per sample 9 $2,439.00 i Task No. ID - Vapor Intrusion $5,691.00 Task No. IE - Consulting/Enginccring Costs ; VI Building Survey & Indoor Air & Soil Gas Sampling (One hour 16 $1,600.00 $100.00 Off-Site Property, One Event)____________ VI Site Access Letters $250,00 event 3 $750.00 Data Validation $400.00 event 3 $1,200.00 EDDs $20.00 CD 6 $120.00 VI Evaluation & Reporting $125.00 hour 31 $3,920,00 Task No. IE - Consulting/Engineering Costs $7,590.00 Task No. 1G - Supplemental Soil and Groundwater Sampling 2019 Field Activities $85.00 per Hour 32 $2,720.00 LSRP Oversight $158.00 per Hour 8 $1,264.00 Soil Borings $2,400.00 per day 1 $2,400.00

per Hour 8 $1,264.00 Soil Borings $2,400.00 per day 1 $2,400.00 TCL VOCs+15 $90.00 per sample 8 $720.00 Encores for TCL VOC+15 $35.00 per sample 8 $280.00 ; TCL VOC+15 - GW • trip blank $90.00 per sample 1 $90.00 ,Sieve with Hydrometer $110.00 per sample 3 $330.00 VOCs -14 wells, 1 dup, 3 FB -1 Round $90.00 per sample 15 $1,350.00 1 : MW installation and repair (unconsolidated) $2,875.00 each well 1 $2,875.00 r Well Abandonment (three additional wells) $690.00 well 2 $1,380.00 Mob/Demob $250.00 each 2 $500.00 ! Disposal $113.00 Drums 10 $1,130.00 Field Equipment $250.00 per day 4 $1,000.00 !■ Task No. 1G - Consulting/Enginccring Costs $16,039.00 RI SUBTOTAL $37,672,00 Task No. 2 - REMEDIAL ACTION WORKPLAN !■ Task No. 2 - Consulting/Eiigineering Costs Report Preparation $100.00 hour 40 $4,000,00 ; CADD