25-18 Exhibit-Matrix-665 Eagle Rock Avenue.pdf

PO Box 5400, Clinton, NJ 08809 Phone (908) 725-1444 – Fax (908) 725-1455 – Email troyennis@gpronecall.com DETAIL REPORT # 112717-3 November 29, 2017 Tamara Grillon Environmental Project Manager Matrix New World Engineering 442 State Route 35 Eatontown, NJ 07724 Re: UST Geophysical Investigation Job Site: Former Exxon Facility #31047 – 659 Eagle Rock Ave., West Orange, NJ Attachment: Field Sketch Dear Ms. Grillon: A subsurface geophysical investigation to locate subsurface anomalies that are indicative of potential Underground Storage Tanks (USTs) utilizing GPR and EM technology was conducted by the GPR One Call Field Technician at the above-captioned Job Site on November 27, 2017. The techniques and equipment used by the field Technician included the following: 1. Reviewing as-built plans, drawings or maps and visually observing the job site to identify all aboveground indicators of buried utilities and potential USTs. 2. Ferromagnetic/Metal Detection using the Magna-Trak 102 locator manufactured by CST/Berger and the Fisher Model TW-6 Twinbox (transmitter/receiver) Metal Detector (TW-6) to assist in locating potential metallic objects. The TW-6 transmitter produces an electromagnetic (EM) radio signal which creates a secondary current in subsurface metal objects. The secondary current creates a magnetic field which is detected by the receiver. The unit's audible signal will rise in pitch and the analog meter will indicate a rise in response when the unit is over a metallic object. The operator carried the TW-6 and scanned the Job Site. If the device indicates the presence of metallic objects, the operator would mark the location for further investigation. 3. Ground Penetrating Radar (GPR) using the Detector Duo (twin antenna 250/700 MHz) manufactured by IDS Ingegneria Dei Sistemi S.P.A. The antenna, containing both a transmitter and a receiver, is rolled along the ground surface during the GPR survey. The transmitter radiates short pulses of high-frequency EM energy into the ground. When the wave encounters the interface between two materials having different