188-25 Exhibit A_GPI_WO Agreement Contract.pdf

Exhibit B Page 48 of 66 Proposal for Final Design (F.D.) Professional Land Surveying Services 2 August 2024 NJDOT TAP 2023 — West Orange, Washington Street Corridor Improvement Project Phase 2 Located in the Township of West Orange, Essex County, New Jersey (MFS Proposal No. NJ24060.002R1) Page 2 of 3 Investigative Technology Ground Penetrating Radar (GPR): MFS deploys the latest Sensors & Software Smart Cart and Utility Scan DF GPR systems. Smart Cart has two antenna configurations for shallow and deep penetration; 400 MHz and 270 MHz respectively. The Utility Scan DF has dual-frequency antennas 300 and 800 MHz. Each has an integrated onboard computer providing real time utility location information (including depth). Data can be stored in digital files for paper print-outs if needed. GPR is a proven technology for identifying non-metallic and metallic pipes, objects and features. GPR can also be used for detecting voids, tanks and rebar. Electro-Magnetic Pipe, Cable & Box Locators (EM): MFS deploys Metrotech VLoc2 Pro, RD8000, Metrotech 810, 9800 and 9890 pipe and cable locating instruments. This equipment relies on sending a radio signal into the ground or directly onto the buried asset itself to locate the whereabouts of metallic based pipes and cables. Once the utility is identified by a tone on the receiver, its path can be followed using conventional location techniques. The depth of the buried asset can be determined by a depth readout feature on the instrument or by using a triangulation technique. MFS deploys a full range of locator variants enabling the operation on low, medium and high frequencies for full coverage. SUE Comments © Please note that while we utilize “state of the art” electronic equipment specifically designed for the purpose of locating underground utilities, certain factors can influence the functionality and/or accuracy of the equipment, and contractors should proceed with caution if excavations are to be made. MFS is not responsible for any damage subsequently caused to personnel, structures or utilities. ¢ MFS assumes that GPI will provide any and all reference drawings showing any underground utilities, to be utilized as a reference for the investigation. e Proximity of utility lines when tracing in congested areas may cause signals to jump from utility to utility which can result in incorrect and or undeterminable

s a reference for the investigation. e Proximity of utility lines when tracing in congested areas may cause signals to jump from utility to utility which can result in incorrect and or undeterminable lines in areas of markout. © Typical ratio to view pipes with GPR is 1” pipe to 1’ of depth to a maximum depth of 8-10 feet. e — Soil types and water content can greatly affect signal penetration at times eliminating the ability to obtain results. e Roadway materials (i.e. stone/Belgian Block) may prohibit the use of GPR. e Concrete pavement with reinforcement could interfere with our electronic equipment limiting results. e Fill material and or capping membrane can affect GPR signals. e Confined Space Entry not included in this proposal. e Fiber optic wire (without tracer wire), transite pipe and plastic pipe will not be located due to pipe material cannot be located by our electronic equipment. *® PVC piping without ground wire can be near impossible to trace. e —Asub-surface investigation report is not included in this proposal. © Vegetation &/or debris will prohibit the use of GPR due to the inability to obtain consistent readings. Vegetation must be cleared. © MFS has included 3 field days to perform SUE and 2 field days for survey for Activity 4085.