266-25 Exhibit A Proposal - HDSRF RA Application_Final.pdf

266-25 Matrix New World Engineering, Land Surveying and Landscape Architecture, P.C. 26 Columbia Turnpike Florham Park NJ 07932 973.240.1800 www.mnwe.com Via Email (zcarballo@westorange.org and psmeraldo@westorange. org) November 17, 2025 Township of West Orange 66 Main Street West Orange, New Jersey 07052 RE: HDSRF GRANT APPLICATION – SUPPLEMENTAL REMEDIAL ACTION FUNDING REQUEST TOWNSHIP OF WEST ORANGE, ESSEX COUNTY, NEW JERSEY FORMER BIDDELMAN, INC. 8-10 CENTRAL AVENUE BLOCK 9, LOT 32 NJDEP SRP PI NO. G000006148 MATRIX NO. 18-286 FORMER SELECTO FLASH 18 CENTRAL AVENUE BLOCK 9, LOT 36 WEST ORANGE, NEW JERSEY NJDEP SRP PI NO. 027054 MATRIX NO. 17-296 Dear Ms. Carballo and Mr. Smeraldo: Matrix New World Engineering, Land Surveying and Landscape Architecture, P.C. (Matrix) has prepared this proposal f or the preparation of a Supplemental Remedial Action (RA) Grant Application f or the Former Biddelman, Inc. property located at 8-10 Central Avenue and Former Selecto Flash property located at 18 Central Avenue in West Orange, New Jersey (Site) under the New Jersey Department of Environmental Protection (NJDEP) and New Jersey Economic Development Authority (NJEDA) Hazardous Discharge Site Remediation Fund (HDSRF) grant program. The scope of the Supplemental RA to be included in the HDSRF Grant Application is outlined in the Remedial Action Workplan (RAW) that was submitted to NJDEP in October 2021 and February 2020 and under the November 2021 RA Grant application submission , under Contaminated Site Remediation and Redevelopment Program (CSRR) Program Interest Number (PI No.) G000006148 and 027054, respectively. Since the approval of the original RA HDSRF Grant in November 2022 and executed in February 2024, updated subcontractor and disposal f acility quotes obtained in November 2025 have demonstrated signif icant increases in the projected costs f or the disposal of F-listed waste associated with the upcoming remediation. The disposal cost assumptions included in the initial HDSRF budget—approximately $300 per ton with a $360 per load export surcharge and $35 manif est upload f ees , plus 10% markup—are no longer suf f icient based on current market rates. Following extensive research, Matrix has determined that the most economical disposal options currently available involve transporting material to f acilities in Indianapolis and/or Canada, with revised

llowing extensive research, Matrix has determined that the most economical disposal options currently available involve transporting material to f acilities in Indianapolis and/or Canada, with revised pricing as f ollows: F:\2018\18-286 Biddleman - 8-10 Central Avenue\Proposal\Supplemental RA HDSRF Grant Application\Twp. of West Orange - HDSRF RA Application_Final.doc