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Innovative Technologies and Techniques <br />In addition to our full suite of geophysical equipment, T2 offers a host of <br />innovative equipment, services and approaches to utility investigations. <br />Although not applicable for every project, T2's expertise will assist the City <br />with deciding when and where such techniques may be appropriate. <br />Perform Advanced Geophysics Investigation <br />Multi -Channel GPR (MCGPR) is a relatively newtechnologyto the <br />Utility Engineering industry. T2 uses the Stream EM and Stream C, <br />which are MCGPR solutions dedicated to utility locating and mapping. <br />These units employ 40 separate channels with double polarized <br />antennas enabling the system to gather data both longitudinal and <br />transversal simultaneously. The high number of antennas increases <br />the quality of the data and allows our crews to detect utilities at <br />greater depth, even in sub -optimal soil conditions. <br />Stream EM and Stream C are equipped with a GPS unit that enables <br />the data set to be easily georeferenced to the project survey datum. <br />The system is towed behind a vehicle permitting technicians to gather <br />the GPR data using minimal traffic control — reducing impacts <br />to local traffic and improving field team and general public safety. <br />Tasking <br />• Mobilize advanced geophysical equipment to site. <br />• Review with clients where test holes may be necessary to calibrate <br />advanced geophysics tools. <br />• Perform a MCGPR sweep of the site using the STREAM EM and/or <br />STREAM C where applicable. <br />• Prepare deliverables showing results of each of the above <br />technologies. <br />Prepare 3D Deliverables <br />Collect data and compile a 3D utility model per ASCE 38-02 showing <br />the horizontal location of the underground utilities at the achieved <br />Quality Level over the project area. The drawings will be completed in <br />AutoCAD or MicroStation and referenced into the design drawing. <br />• Record electronic depths to the Quality Level B investigation. T2 will <br />provide estimated depths at specific points from records/field <br />measurements and geophysics and document the readings. <br />Geophysical depths are noted and are not assumed to be a <br />definitive measurement of utility depth. <br />2. SCOPE AND SCHEDULE 116 <br />