349-24 PROPOSAL- Lindsley Ave Proposal - additional sampling -Dec 2024.pdf

November 25, 2024 Zayibeth Carballo Director, Municipal Engineer Department of Engineering Township of West Orange 25 Lakeside Avenue, West Orange, NJ 07052 zcarballo@westorange.org James Abbott Interim Business Administrator 66 Main Street West Orange, NJ 07052 policechief@wopd.org Re: Proposal for Professional Services – Groundwater Monitoring and LSRP Services Lindsley Avenue Bus Garage; 6 Lindsley Avenue Township of West Orange, Essex County, New Jersey NJDEP CASE #88-11-10-1526 – PI#014425 Dear Ms. Carballo: CME Associates (CME) is pleased to submit this proposal to the Township of West Orange (Client) to continue Professional Environmental and Licensed Site Remediation Professional (LSRP) Services at the Lindsley Avenue Bus Garage at 6 Lindsley Avenue in West Orange. The proposed scope of work is prepared to satisfy the New Jersey Department of Environmental Protection (NJDEP) requirements stated in the Administrative Requirements for Remediation of Contaminated Sites (ARRCS Rule, N.J.A.C. 26:C) and the Technical Requirements for Site Remediation (Tech Rule, N.J.A.C. 7:26E), in accordance with New Jersey’s Site Remediation Reform Act (SRRA). The scope of work is required to complete the required groundwater sampling per the Monitored Natural Attenuation guidance document, it is recommended that 8 rounds of sampling be collected to support MNA following the completion of excavation. A recent NJDEP Form was released and included a request to conduct eight (8) consecutive quarterly groundwater sampling that demonstrates decreasing trend in contaminants’ concentration as a requirement to propose Monitored Natural Attenuation (MNA) as an effective Ground Water Remedial Action for the site. (N.J.A.C. 7:26C-7.5(c)3i). Four quarterly sampling events were completed (were included