103-25 Exhibit A_Proposal.pdf

3 Issue for Bid/Permit Phase only. Design drawings will not be included as apart of Matrix’s construction documents. TASK 4 – CHARACTERIZATION OF BUILDING MATERIALS (I.E. CONCRETE AND CINDER BLOCK) It is Matrix’s understanding that the building materials (i.e., concrete, brick, and cinder block) will be disposed of off-site as C&D waste. If this disposal method (C&D waste) is selected, then the sampling associated with Option 1 below will be required. If the Township/redeveloper determines that they would like to re-use the materials on-site as sub-base under asphalt paved areas or dispose of the material at a Class B recycling facility, then the sampling associated with Option 2 below, will be required. If Option 2 is the preferred disposal option, then the building material sampling is recommended to be completed in-situ (prior to building demolition) by the NJDEP, however this option does not guarantee the material can be re-used on Site. The qualification for on-site reuse will depend on the analytical results of the building materials. Costs for both options are summarized below. OPTION 1 If Option 1 is selected, Matrix will collect the concrete samples for disposal after the building is demolished. Matrix will collect up to eight (8) 5-point composite building material (concrete and cinder block) samples (one composite sample per every 1,000 cubic yards [CYs]) for waste characterization purposes, as required for off-site disposal. Please note the total number of proposed samples is based on an estimation of the cinder block present in the interior portion of the building (as it has not been measured due to mold in that portion of the building) and the area of concrete slab that is 12-inches thick. Samples will be submitted to a New Jersey certified laboratory and analyzed for Extractable petroleum hydrocarbons category 2 (EPH Category 2), target compound list/target analyte list plus a forward library search (TCL/TAL+30), full toxicity characteristic leaching procedure (TCLP), TCLP beryllium, Resource Conservation and Recovery Act (RCRA) characteristics, paint filter, and contingent hexavalent chromium analysis. Volatile organic compounds (VOCs) will be collected as a discrete grab sample and not a composite sample. If total chromium is over 20 milligrams per kilogram (mg/kg), hexavalent chromium will be run. The samples will be analyzed on a standard

ollected as a discrete grab sample and not a composite sample. If total chromium is over 20 milligrams per kilogram (mg/kg), hexavalent chromium will be run. The samples will be analyzed on a standard 14-day turnaround. Upon receipt/evaluation of analytical results, Matrix will submit the required documentation to the receiving facility in order to have the material approved for transportation and disposal. OPTION 2 Based on previous site and remedial investigation activities, the structure measures approximately 580 feet by 320 feet with a floor thickness of 6-inches. During prior interior drilling activities, one area in the central portion of the building near the bay door had a floor thickness of approximately 12-inches (approximately 40 ft by 40 ft area). The interior of the building in the office area and between the office area and the warehouse area consists of cinder block. Exterior portions of the building consisting of cinder block include the bay doors only. The remainder of the building exterior consists solely of corrugated metal. The amount of cinder block in the interior portion of the building has been estimated for this proposal. As part of this scope, Matrix proposes the collection of approximately 20 building material samples. Fifteen (15) concrete chip samples are proposed to be collected from the building slab. From the interior building walls and loading dock wall, Matrix proposes to collect up to five (5) cinder block samples. The total number of samples collected from each building material type is based on measurements and/or estimations (interior cinder block and area of the slab that is 12-inchs think was estimated) collected by Matrix to determine the approximate volume of each material present in the existing building. All samples will be discrete surficial samples not to exceed 1-inch in depth and will be biased to any evidence of impacts (i.e., staining). The samples will be field screened for VOCs using a photoionization detector (PID) and all field observations will be documented in a field book. Based on historic soil and concrete analytical results, the concrete chip samples will be submitted to a New Jersey certified laboratory for TCL/TAL+30 and EPH category 2 analysis. Contingent hexavalent chromium will be collected and run if total chromium exceeds 20 mg/kg. In addition, sufficient sample volume will be collected in

tory for TCL/TAL+30 and EPH category 2 analysis. Contingent hexavalent chromium will be collected and run if total chromium exceeds 20 mg/kg. In addition, sufficient sample volume will be collected in order to run contingent synthetic precipitation leaching procedure (SPLP) analysis should concentrations exceed the NJDEP migration to groundwater exposure pathway soil remediation standard (MGWSRS), in an attempt to establish a site-specific migration to groundwater exposure