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21 | P a g e <br />RFQ #16-06-01 Shoreline Surveying & Mapping Consulting Services <br />system at a 400 kHz frequency on the SeaArk with a POS-mv for heave, pitch, roll corrections and RTK GPS <br />positioning. <br /> <br />Submerged Utility Location at FEC Railroad Bridges, Stuart and Jupiter, Florida <br />Land & Sea Surveying worked with the utility company to locate and mark their submerged lines at the <br />railroad bridges in preparation of repairs on the bridge. Using the land side access points, we energize one <br />end of the tracing wire with a ground at the other end to send tone along the wire. A sensor is carried <br />onboard the survey vessel to detect the resultant electromagnetic field. We waymark the location of the <br />return of the AC signal to the sensor with the hydrographic and GPS systems, crossing the pipeline from <br />both directions for redundancy. We will need access to the shore landing on both sides to send tone and <br />for a ground. <br /> <br />City of Melbourne Subaqueous Crossing Inspections and Hydrographic Services - Hydrographic Technician <br />Land & Sea Surveying team provided research and located the existing primary control monuments, located <br />subaqueous pipelines, acquired hydrographic data and provided digital and hard-copy mapping products of <br />the existing pipeline. <br /> <br /> <br /> <br />Shelley Kerasotis, CAD Manager <br /> <br />Certifications <br />Florida Department of Transportation (FDOT) Certified <br />Master Scuba Diver <br /> <br />Experience <br />Shelley Kerasotis came to work for Land & Sea Surveying <br />Concepts in 1996. She learned drafting on the DOS-based <br />versions of Microstation and Terramodel. Over the past 20 years,