87-18 Exhibits - Retention of Matrix to Conduct Investigation of Areas of Concern at Degnan Park and Lafayette Park.pdf

technologies to evaluate the Site for past usage. Specifically, the geophysical survey is to document whether any wells, septic systems, or underground storage tanks (USTs) were ever associated with the structure formerly identified in the northwest corner of the property (AOC-13). In addition, the GPR survey will also be used to clear proposed boring locations for proposed soil boring locations. A direct-push drill rig will be utilized to collect soil cores. Six soil borings will be completed within AOC-7, mapped historic fill material (HFM). In accordance with NJDEP’s April 2013 Historic Fill Material Technical Guidance document and based on an approximate HFM area of 2.95 acres, a total of six soil samples will be submitted for analysis. All six soil samples will be submitted for target compound list polyaromatic hydrocarbons (TCL PAHs) and target analyte list (TAL) metals. Two soil samples (25% of the total samples collected) will be submitted for full TCL/TAL with forward library search (TCL/TAL+30) and Extractable Petroleum Hydrocarbon Category 2 (EPH Cat 2) non-fractionated analysis (with contingent fractionation). In addition, to investigate for former agricultural use at the Site, four borings will be completed, and four soil samples will be collected to evaluate for potential impacts from historic pesticide use. These will be collected and submitted for arsenic, lead, and TCL pesticides pursuant to NJDEP’s August 2016 Historically Applied Pesticide Site Guidance document. To investigation the two NJDEP incident numbers (AOC-12 and AOC-13), one sediment and one surface water sample will be collected at the inflow area for an unknown petroleum hydrocarbon discharge. The sediment samples will be analyzed for EPH, Cat 2, and VOCs, SVOCs PCBs, TAL metals, total organic carbon, and grain size, if EPH is detected. The surface water sample will be analyzed for VOCs+15, SVOCs+20, TAL metals including hardness. All samples will be analyzed on standard turnaround time, except for the HFM samples, which will be analyzed for PAHs and TAL metals on a one-week turnaround. Task 2: Site Investigation Report Following the completion of the geophysical survey and receipt of laboratory analytical results, Matrix will prepare a Site Investigation Report (SIR) in accordance with the TRSR. This task includes labor associated with the preparation of the report including

pt of laboratory analytical results, Matrix will prepare a Site Investigation Report (SIR) in accordance with the TRSR. This task includes labor associated with the preparation of the report including findings and conclusions of the investigation, preparation of data tables and figures. Matrix will also prepare the NJDEP’s electronic data deliverables. COSTS The following are our estimated costs for the tasks described herein to further the remedial investigation of the property. All work will be conducted in accordance with the attached standard terms and conditions and LSRP Special Provisions. Task 1: Soil Site Investigation and Geophysical Investigation Labor ...................................................................................................................................................... $ 1,500.00 Direct Expenses (driller, geophysical survey, laboratory) ..................................................................... $ 10,500.00 Subtotal Task 1 .......................................................... $ 12,200.00 Task 2: Site Investigation Report Labor ...................................................................................................................................................... $ 7,800.00 Subtotal Task 2 .......................................................... $ 7,800.00 Total Costs Not to Exceed .................................................................................................... $20,000.00 ASSUMPTIONS AND EXCLUSIONS This proposal is based on the following assumptions:  Costs assume that all areas are accessible for investigation;  No additional assessment, investigation or remediation activities are included;  Costs do not include future investigations or remediation;  Costs assume that the sediment and surface water samples can be collected in an accessible area in the vicinity of the inlet to Lake Vincent;  Costs exclude a groundwater investigation;  Costs do not include any additional NJDEP notification or reporting fees, if applicable; and  All external costs will be charged at cost plus 15%. F:\2017\17-707 Twp. of West Orange Preliminary Assessments - Green

e any additional NJDEP notification or reporting fees, if applicable; and  All external costs will be charged at cost plus 15%. F:\2017\17-707 Twp. of West Orange Preliminary Assessments - Green Acres\Proposal\2018-02-12_Degnan-SI\Revised\Twp. of West Orange - Degnan Park SI_Revised.doc 2