44-25 Exhibit A-DPW_VI Sampling_1.17.2025.pdf

impacts on-site may be due to contaminants migrating on-site from an upgradient, off-site source. However, this does not rule out the potential that the impacts identified in groundwater samples collected from MW-10 are not due to operations associated with the DPW property. The source of the impacts identified in MW-10 are not clear at this time. The LSRP of record for the DPW will be required to submit the results of sampling and all required NJDEP reporting. If Matrix is retained as LSRP of record for AOC-22 – Vapor Intrusion or entire Site, Matrix will submit the NJDEP Vapor Intrusion reporting that is required by the NJDEP within 30-days of final laboratory report is issued. In addition, in accordance with the TRSR, the person responsible for conducting the remediation of a contaminated site is required to perform public notification and outreach. Matrix will post a Public Notification sign and submit a revised public notification form to the NJDEP. In accordance with the NJDEP SRRA, the ARRCS, and the TRSR, the retained Matrix LSRP will oversee the investigation activities outlined above and if retained as the LSRP of record for the entire Site future remediation tasks as well. This task includes project management, NJDEP correspondence and coordination, and the anticipation of future conference calls and/or meetings with the project team. COSTS The following are the estimated costs not to exceed for the tasks described herein to complete the vapor intrusion activities at the DPW Site. All work will be conducted in accordance with the attached standard terms and conditions and LSRP Special Provisions. Task 1: Vapor Intrusion Investigations Labor .....................................................................................................................$ 5,770.00 Direct Expenses .....................................................................................................$ 8,610.00 Task 1 Total Estimated Costs ................................................................................ 14,380.00 Task 2: Prepare NJDEP Vapor Intrusion Submission Labor .....................................................................................................................$ 5,110.00 Direct Expenses .....................................................................................................$ 250.00 Task 2 Total Estimated Costs

...................................$ 5,110.00 Direct Expenses .....................................................................................................$ 250.00 Task 2 Total Estimated Costs ................................................................................ 5,360.00 Task 3: LSRP Retention and PM Labor .....................................................................................................................$ 1,760.00 Direct Expenses .....................................................................................................$ 460.00 Task 3 Total Estimated Costs ................................................................................ 2,220.00 ESTIMATED COSTS TASK 1 THROUGH TASK 3 ...............................................$ 21,960.00 ASSUMPTIONS AND EXCLUSIONS This proposal is based on the following assumptions: ▪ All field work will be completed in Level D personal protective equipment; ▪ All samples will be analyzed on a standard turnaround time basis, unless otherwise noted; ▪ All investigation derived waste will be disposed of as non-hazardous waste; ▪ No additional assessment or investigation activities or LSRP documents beyond the activities identified in the scope of work are included; F:\2025\25-0037 West Orange DPW\Proposal\LTM VI Proposal\DPW_VI Sampling_1.17.2025.docx 4