184-25 Exhibit A_Rock Spring Country Club SI Proposal_Final.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.mnwe.com Via Email (zcarballo@westorange.org) July 31, 2025 Township of West Orange 66 Main Street West Orange, New Jersey 07052 RE: PROPOSAL FOR ENVIRONMENTAL SERVICES ROCK SPRING GOLF COURSE BLOCK 160, LOTS 2 & 10; BLOCK 160.01, LOTS 30 & 34; and Block 46.01, LOT 22 90 ROCK SPRING ROAD TOWNSHIP OF WEST ORANGE, ESSEX COUNTY, NEW JERSEY MATRIX JOB NO. 19-159 Dear Ms. Carballo: At your request, Matrix New World Engineering, Land Surveying and Landscape Architecture, P.C. (Matrix) is pleased to provide this proposal to the Township of West Orange (Township) for the performance of Site Investigation (SI) activities for the above-referenced property (Site) located in West Orange, New Jersey. SITE BACKGROUND The approximately 137.92-acre Site is currently operated as a country club and 18-hole golf course. The Site is bordered by Northfield Avenue to the north, residences to the east and south, and park space and residences to the west. The golf course was established and has been in operation since 1925. In February 2019, Matrix prepared a Preliminary Assessment Report (PAR) for the Site. As a result of the PAR, 14 Areas of Concern (AOCs) were identified throughout the Site, of which, further investigation was recommended for two (2) AOCs including: • • AOC-2 – Former Underground Storage Tanks (USTs), and AOC-11 – Historic Fill Material In December 2024, the New Jersey Department of Environmental Protection (NJDEP) approved Green Acres Grant funding for the Site to the Township. As required by the Green Acres rules, N.J.A.C. 7:368.2, AOCs identified during completion of a PAR must be addressed to the NJDEP’s satisfaction prior to disbursement of any funding associated with the Green Acres Grant program. Additional information was provided to Green Acres Grant program with regards to AOC-2 as the former USTs were closed out with the NJDEP and a Groundwater Remedial Action Permit (RAP) has been approved by the NJDEP for the benzene groundwater impacts associated with the former USTs. As a result of the Green Acres review of the February 2019 PAR prepared for the Township, the NJDEP indicated that further investigation is required to address the potential historic fill material (HFM) (AOC2) at the Site prior

res review of the February 2019 PAR prepared for the Township, the NJDEP indicated that further investigation is required to address the potential historic fill material (HFM) (AOC2) at the Site prior to the disbursement of any funding associated with the Grant. PROPOSED SCOPE OF SERVICES Based on review of the NJDEP’s NJ-GeoWeb database, a small portion of the Site, approximately 3.4 acres in total, along the eastern property boundary is located in an area of mapped HFM. Approximately 1.39 acres of mapped HFM is located within Block 160, Lot 10; and the entirety of Block 46.01, Lot 22 (1.986 acres) is mapped HFM. The purpose of the proposed SI activities is to confirm the presence and F:\2019\19-159 Rock Spring Country Club\Historic Fill\Proposal\Rock Spring Country Club SI Proposal_Final.docx 1