226-22 - Attachment - 25 Lakeside Avenue New Areas of Concern and CME Proposal.pdf

ASSOCIATES Mr. Leonard R. Lepore, PE August 26, 2022 Municipal Engineer/Director of Public Works Page 3 of 10 Re: Department of Public Works at 25 Lakeside Avenue — Site Investigation CME recommended a Site Investigation (SI) be conducted in accordance with NJDEP requirements and guidance documents. A proposal that included the investigation of soil and groundwater around impacted MW-9 was submitted on July 26, 2022. This proposal was requested to investigate the remaining AOCs and complete the Site Investigation at the Site. The following scope of work is required to comply with the NJDEP Technical Requirements for Site Remediation at the Site and necessary to continue to advance the project towards a closure with Site-wide RAO. The scope of work included in this proposal is based on the recommendations for investigation at AOCs identified in the Matrix PA. The proposed scope of work is prepared to establish a Site Investigation of identified AOCs to satisfy the New Jersey Department of Environmental Protection (NJDEP) requirements. Note that based on the findings of the Site Investigation, further investigation and/or remediation may be warranted. This proposal does not include costs associated with additional investigation and remediation services beyond the scope of services presented herein. SCOPE OF SERVICES A groundwater and soil investigations should be implemented at the Site to evaluate any potential impacts of the recently identified AOCs on the Site. TASK 1: GEOPHYSICAL INVESTIGATION Prior to any subsurface exploration, CME will retain the services of a geophysical survey consultant to perform a geophysical investigation at the Site. The geophysical consultant will employ electromagnetic (EM), line tracing, and ground-penetrating radar (GPR) techniques to assess for underground utilities, potential former excavations, abandoned USTs, and other buried features (e.g., drums, tanks, building foundations). Anomalies and subsurface features identified by the geophysical survey will be marked on-site and the locations will be recorded using handheld GPS equipment. In addition, CME personnel will conduct a site inspection concurrently with the geophysical investigation. For estimation purposes, it is assumed the geophysical survey and site inspection will be completed over the course of one (1) working day, TASK 2: SOIL BORINGS AND TEMPORARY

ophysical investigation. For estimation purposes, it is assumed the geophysical survey and site inspection will be completed over the course of one (1) working day, TASK 2: SOIL BORINGS AND TEMPORARY WELLS INSTALLATION