167-22 Exhibit.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 Wwww.mnwe.com — wae MATRIXNEWORLD Via Email (LLepore@westorange.org) Engineering Progress June 7, 2022 Mr. Leonard R. Lepore, P.E., Municipal Engineer Township of West Orange - Director of Public Works 25 Lakeside Avenue West Orange, NJ 07052 Re: PROPOSAL FOR ENVIRONMENTAL SERVICES — OFF-SITE VAPOR INTRUSION INVESTIGATIONS 4-10 CENTRAL AVENUE BLOCK 9, LOT 32 WEST ORANGE, NEW JERSEY MATRIX NO. 18-286-01 Dear Mr. Lepore: Matrix New World Engineering, Land Surveying, and Landscape Architecture, P.C. (Matrix) is pleased to provide this proposal to complete off-site vapor intrusion investigation activities and prepare a supplemental Remedial Investigation Report (RIR) for the Former Biddelman, Inc (Biddelman) property, located at 4-10 Central Avenue (Block 9, Lot 32) in the Township of West Orange (Township), New Jersey (Site). Matrix prepared an Application for a Hazardous Discharge Site Remediation Fund (HDSRF) Grant to complete this work (additional off-site vapor intrusion investigation activities) and submitted the HDSRF Grant Application to the New Jersey Economic Development Authority (NJEDA) and the New Jersey Department of Environmental Protection (NJDEP) on October 21, 2021. However, the NJDEP wants the off-site vapor intrusion investigations completed as soon as possible and is not willing to let the Township wait until the RA HDSRF Grant has been approved and the funds received by the Township. The NJDEP considers the RIR to be incomplete until the additional vapor intrusion sampling has been completed. According to DataMiner, the mandatory RIR deadline is August 5, 2022 therefore, the additional off-site vapor intrusion investigations will need to be completed and the RIR revised and submitted to meet this mandatory timeframe and remain in compliance with the NJDEP. The off-site vapor intrusion activities will be completed in compliance with the NJDEP Technical Requirements for Site Remediation (TRSR), the Site Remediation Reform Act (SRRA), the Administrative Requirements for the Remediation of Contaminated Sites (ARRCS), and the NJDEP'’s applicable guidance documents. SCOPE OF WORK The scope of services and associated fees are described in below. Task 1: Vapor Intrusion

the Remediation of Contaminated Sites (ARRCS), and the NJDEP'’s applicable guidance documents. SCOPE OF WORK The scope of services and associated fees are described in below. Task 1: Vapor Intrusion Investigation Matrix will coordinate the necessary access agreements to conduct the vapor intrusion activities in the off-site properties identified below prior to scheduling the field activities. The vapor intrusion investigation activities will include the collection of sub-slab soil gas (SSSG), indoor air (IA), and ambient air (AA) samples from within and beneath the off-site property buildings. At least 24 hours prior to completing the SSSG and IA sampling, Matrix will complete building walkthroughs and F:\2018\18-286 Biddleman - 8-10 Central Avenue\Proposal\Vapor Intrusion Proposal_Off-site - June 2022\G000006 148 Biddelman Proposal off-site VI- FINAL.docx