101-25 Exhibit A-Proposal.pdf

Matrix New World Engineering, Land Surveying and Landscape Architecture, P.C. 26 Columbia Turnpike Florham Park, NJ 07932 973.240.1800 Fax 973.240.1818 www.mwne.com September 19, 2022 Revised April 23, 2024 Via Email (zcarballo@westorange.org) Township of West Orange 66 Main Street West Orange, New Jersey 07052 Attention: Zayibeth Carballo RE: PROFESSIONAL SERVICES PROPOSAL PROPERTY LOCATED AT 4 TOMPKINS STREET 4 TOMPKINS STREET BLOCK 7, LOT 22 WEST ORANGE, ESSEX COUNTY, NEW JERSEY NJDEP SRP PI NO. 757936 MATRIX NO. 22-0745 Dear Ms. Carballo: Matrix New World Engineering, Land Surveying and Landscape Architecture, PC (Matrix) is pleased to submit the following proposal to the Township of West Orange (Client). This proposal encompasses professional site remediation services as requested for the above-referenced property located (the Site). The proposed Scope of Services described below are based on the NJDEP requirements set forth in the Heating Oil Tank System Remediation Rules (N.J.A.C. 7:26F), Administrative Requirements for the Remediation of Contaminated Sites (ARRCS; N.J.A.C. 7:26C), the Technical Requirements for Site Remediation (TRSR; N.J.A.C. 7:26E), NJDEP Field Sampling Procedures Manual (FSPM, November 2022 edition), and applicable NJDEP guidance documents. INTRODUCTION During a 2017 geophysical investigation at the Site a previously unidentified underground storage tank (UST) was identified. The UST is located in the south-central portion of the lot and the anomaly identified during the geophysical investigation was measured to be approximately 6-feet by 10-feet in size, which indicates a potential 1,000-gallon UST. The size, structure, and contents of the UST were not confirmed and there is no available documentation as the UST does not appear to be registered with NJDEP. Based on the historical use of the site as a residence, the UST is assumed to have been used for heating purposes. A review of historical aerial photographs indicates a structure has not been present on the parcel since at least 1974. No staining was observed in the immediate area where the UST was identified. In April 2017 soil samples collected around the perimeter of the UST did not identify detections of Extractable Petroleum Hydrocarbons (EPH). However, as the UST is not currently in-use, the tank needs to be closed in accordance with NJDEP requirements. In addition to the

not identify detections of Extractable Petroleum Hydrocarbons (EPH). However, as the UST is not currently in-use, the tank needs to be closed in accordance with NJDEP requirements. In addition to the UST, the Site is located in area that is identified by the NJDEP as mapped historic fill. A review of available historical Sanborn® Maps showed that entirety of the Site was identified as Marsh Land. The potential presence of historic fill at the Site warrants further investigation.