https://www.sempcosurveying.com/home daily 1.0 2025-09-17 https://images.squarespace-cdn.com/content/v1/5e5d3948ecafc05abb055d29/0b2f64ae-f925-4b19-ae9d-18ff2e4dc2b5/logos-Model-2023+No+Background+with+Glow+3.png https://images.squarespace-cdn.com/content/v1/5e5d3948ecafc05abb055d29/1583168439302-4EFQHB27EN2Z1OOOCIB9/Route.jpg https://images.squarespace-cdn.com/content/v1/5e5d3948ecafc05abb055d29/1583168502076-PNGPSNO210QSPNUL3TWG/scanner1.jpg https://images.squarespace-cdn.com/content/v1/5e5d3948ecafc05abb055d29/1628804111305-Y6LCAFEGQALS2VM8PQMX/M300H20TRTK-Full+Frame-Cut+down.jpg https://images.squarespace-cdn.com/content/v1/5e5d3948ecafc05abb055d29/1609803433844-OJ5I8JQQ7N9MT13XIUK6/image-asset.jpeg https://www.sempcosurveying.com/services daily 0.75 2021-08-12 https://images.squarespace-cdn.com/content/v1/5e5d3948ecafc05abb055d29/1583214193155-D1FVVHNWACB1KL55U05K/Roadway+and+Transmission.jpg Services - Route Survey https://images.squarespace-cdn.com/content/v1/5e5d3948ecafc05abb055d29/1583213772206-KUQOD1OZZWR3923NJIBB/image-asset.jpeg Services - LiDAR https://images.squarespace-cdn.com/content/v1/5e5d3948ecafc05abb055d29/1583214499987-C0XT33L2GCD8CDI9MCS8/image-asset.jpeg Services - Boundary Survey https://images.squarespace-cdn.com/content/v1/5e5d3948ecafc05abb055d29/1604496443999-RHMC55W3KKG02RWLCJ7M/image-asset.jpeg Services - Renewable Energy https://images.squarespace-cdn.com/content/v1/5e5d3948ecafc05abb055d29/1583214022816-15B6UXM6A9YQ8RX3U0BJ/UAV+with+Camera.jpg Services - Photogrammetry https://images.squarespace-cdn.com/content/v1/5e5d3948ecafc05abb055d29/1583214417520-KSFG1PEUJLSS1T7C7QQM/Large+JPG-20140228_Trade+151_0046.jpg Services - Oil and Gas https://images.squarespace-cdn.com/content/v1/5e5d3948ecafc05abb055d29/1583214339604-655CRCCYQUEQB5UDFOJ9/Substation+-+Top+View.jpg Services - Substation Survey https://images.squarespace-cdn.com/content/v1/5e5d3948ecafc05abb055d29/1628805521012-LM3JM13GDFSZ0V50BD2R/GettyImages-502613498.jpg Services - Thermal Inspections https://images.squarespace-cdn.com/content/v1/5e5d3948ecafc05abb055d29/1610059986326-ZRPXQKL54TCUGJGUSYXE/image-asset.jpeg Services - Topographic Survey https://www.sempcosurveying.com/survey-technology daily 0.75 2021-08-12 https://images.squarespace-cdn.com/content/v1/5e5d3948ecafc05abb055d29/1610064454198-P7D7LFNKE9ZU84BGMNUD/DJI_0003.JPG Survey Technology - UAV Unmanned Aerial Vehicles allow Sempco to access hard to reach areas and places that are dangerous for humans to enter. The mobility also allows for quick and accurate data collection through a variety of methods. https://images.squarespace-cdn.com/content/v1/5e5d3948ecafc05abb055d29/1628804612857-ODO0XL9FOJ1GZ0BSECSU/M300L1%2B%25281%2529.jpg Survey Technology - LIDAR LIDAR allows Sempco to collect vast amounts of data at a survey grade level. LIDAR versus photogrammetry also allows for surveys such as Topographic surveys to take place in heavy vegetation quickly and accurately. https://images.squarespace-cdn.com/content/v1/5e5d3948ecafc05abb055d29/1628807428741-TI1VR0UP3JILIJHPLSB7/Thermal+Inspection.jpg Survey Technology - Thermal Thermal Cameras on our UAV platforms allows Sempco to collect temperature data on Substation, Transmission, and Distribution equipment quickly while remaining a safe distance from any dangerous components. Collecting this thermal data could be key to catching a faulty component before failure, saving not only time and money but also potentially stopping wildfires before they happen. https://www.sempcosurveying.com/leadership daily 0.75 2023-05-17 https://images.squarespace-cdn.com/content/v1/5e5d3948ecafc05abb055d29/1599657910977-UDTN1OMIFL0AXMXXXNTO/isaac.JPG Leadership - Isaac Grier RPLS, President, Mr. Grier received a Bachelor of Science degree of Technology with emphasis in land surveying from the University of Texas at Tyler in 2001 and is also a graduate from the Land Surveying program at Tyler Junior College. Mr. Grier has 25 years of combined land surveying experience in the field and in an office setting and is Sempco’s Managing Partner. He has worked on many large projects for ONCOR Electric Delivery Company, TxDOT and numerous professional engineers. Mr. Grier presently manages all major survey projects and provides survey data to companies working throughout the energy industry. He is a Registered Professional Land Surveyor in Texas as of July 2005, No. 5838. https://images.squarespace-cdn.com/content/v1/5e5d3948ecafc05abb055d29/1603835926395-7JZQHWKO058SKYEJ9P28/jason.jpg Leadership - Jason Ruddick RPLS, Vice President, Jason received a Bachelor of Science degree from the University of Texas in Arlington in 2005. Mr. Ruddick has 17 years of combined land surveying experience in the field and in an office setting and is a key RPLS in preparing Oncor Exhibits and Legal Descriptions. He has worked on many large boundary survey projects for individuals and other various entities. He is a Registered Professional Land Surveyor in Texas as of July 2009, No. 6127. https://images.squarespace-cdn.com/content/v1/5e5d3948ecafc05abb055d29/1603837940921-2Y5MQFYYN9Z76U0JUKTQ/chrisp.jpg Leadership - Christopher Pyle Partner, Project Manager, Mr. Pyle is an experienced associate of Sempco Surveying who has been with the firm since 2006. He is a Project Manager with over 14 years of experience in land surveying. He creates and enforces CAD standards, oversees office software & hardware, and manages all things technical. Mr. Pyle also manages many large-scale projects for ONCOR Electric Delivery Company, including numerous engineers and a variety of contractors. Mr. Pyle has worked with and studied Laser Scanning since 2010 with industry experts such as Leica, LiDAR USA, Yellowscan, DJI and Trimble. Mr. Pyle has worked directly on hundreds successful LiDAR based surveys ranging from transmission line and substation surveys to interior and exterior building surveys. During that time he has worked in the field directly with the equipment, in the office processing and quality checking the data, and managed the projects. During that time Mr. Pyle has also worked with and studied terrestrial and aerial Photogrammetry since 2016. Mr. Pyle has certifications from Autodesk (AutoCAD, Civil), IMAGINiT (Cyclone, AutoCAD, Civil), PIX4D. Mr. Pyle has also attended several CEU courses with Texas Society of Professional Surveyors covering Laser Scanning, UAV, USGS, and surveying practices. https://www.sempcosurveying.com/cost-estimate daily 0.75 2021-08-12 https://www.sempcosurveying.com/about daily 0.75 2023-05-17 https://images.squarespace-cdn.com/content/v1/5e5d3948ecafc05abb055d29/1583208602632-5LNCC12KCUVXRDX1IZQP/IMG_20160316_105636.jpg About - Our Story Founded in 1967 by Hobert Bartlet, Sempco Surveying started as a small surveying outfit with a couple trucks performing small residential surveys. It wasn’t long before Sempco grew to a few more crews and began it’s search for the best people and the latest technology. Sempco Surveying has been on the forefront of many technologies including GPS, Stereoscopic, photogrammetry as well as many others. Today we keep that spirit alive by looking for intelligent personnel with a curious sense of exploration. We have fostered that spirit by increasing investment in future technologies such as Real Time Kinematic GPS before it was statewide, much less nationwide. Our most recent investments include Survey Grade photogrammetry and LiDAR. We have found that with the right mix of driven personnel and modern technology, we can provide our clients with an incredible wealth of pertinent data at survey grade accuracy with industry leading turn-around times. https://www.sempcosurveying.com/route-survey daily 0.75 2023-05-17 https://images.squarespace-cdn.com/content/v1/5e5d3948ecafc05abb055d29/1583811681362-CNYSDLSUVA0P5QZNQXZ9/Route.jpg Route Survey - Route Surveying Services Sempco Surveying has completed thousands of projects with several thousands of miles of pipeline and electrical transmission lines, gas gathering systems, silt range surveys, boundary, topographic and control surveys for numerous substation sites, electric generating plants, power plant lake properties, compressor sites and lignite mining areas. We offer a complete package including laser scan aerial photography, route studies, title reports, survey permits, pipeline and electric transmission line route selection, property construction staking and as-built surveys, preparation of easements, exhibits for condemnation, well locations and exhibits, highway permits, railroad permits, and river crossing permits. https://www.sempcosurveying.com/oil-and-gas daily 0.75 2021-01-07 https://images.squarespace-cdn.com/content/v1/5e5d3948ecafc05abb055d29/1610063766216-6SZLTPFUO2SVXH8HG1XO/total+station2.jpg Oil and Gas - Oil and Gas Services Sempco offers comprehensive surveying services to the Gas & Oil Industry and in most cases can respond immediately to your field requests. Sempco’s services include: Lease & Unit Surveys; Surface Hole & Pad location staking & Exhibits; Railroad Commission (RRC) Exhibits; Pipeline Surveys & Alignment Sheets; Drilling Pad & Rig details; Surface Use & Easement Exhibits & Legal Descriptions; Topographic Surveying, Mapping & Profile Generation; Shape File submittals to RRC, Texas811 & regulatory agencies; and GIS Database Management Pipelines, Utility Companies, Oil & Gas Exploration/Energy Companies We offer a complete package including laser scan aerial photography, route studies, title reports, survey permits, pipeline and electric transmission line route selection, property construction staking and as-built surveys, preparation of easements, exhibits for condemnation, well locations and exhibits, highway, railroad and river crossing permits and right-of-way acquisition services. All items listed are accomplished with Sempco Surveying, Inc. staff personnel excepting the laser scan aerial photography and right-of-way acquisitions. These services are provided through contractual arrangements with highly respected local and national organizations. All such outside services are supervised and coordinated by Sempco Surveying, Inc. personnel. We offer consultation for proposed pipeline acquisitions in reference to status of maps and easement records. Projects include several thousand miles of pipelines and electrical transmission lines, gas gathering systems, silt range surveys, boundary, topographic and control surveys for numerous substation sites, electric generating plants, power plant lake properties, compressor sites and lignite mining areas. https://www.sempcosurveying.com/substation-survey daily 0.75 2020-03-10 https://images.squarespace-cdn.com/content/v1/5e5d3948ecafc05abb055d29/1583214339604-655CRCCYQUEQB5UDFOJ9/Substation+-+Top+View.jpg Substation Survey - Substation Survey Catch every detail, every foundation, dense and accurate topographic surveys Sempco has provided boundary surveys for Substation properties since the 1970’s. Using that experience, Sempco has grown its Substation Surveying expertise to include topographic surveys within active substations using the latest LiDAR scanning tools. Using those same tools we have been able to provide our clients with centimeter level accuracy on foundations, buses, switches as well as many other substation obstructions. Sempco has also performed Level B SUE surveys within and around substations providing conduit and other subsurface utility locations. https://images.squarespace-cdn.com/content/v1/5e5d3948ecafc05abb055d29/1583815053124-VH6ZFM8ADSLLZZVXQUKR/Mesquite-Sub-inset.jpg Substation Survey https://www.sempcosurveying.com/lidar daily 0.75 2021-01-07 https://images.squarespace-cdn.com/content/v1/5e5d3948ecafc05abb055d29/1610062285168-5JRUAEGKUXDXB6E4LRKV/DJI_0040.jpg LiDAR - LIDAR Light Detection and Ranging “Lidar, which stands for Light Detection and Ranging, is a remote sensing method that uses light in the form of a pulsed laser to measure ranges (variable distances) to the Earth. These light pulses—combined with other data recorded by the airborne system — generate precise, three-dimensional information about the shape of the Earth and its surface characteristics.” -noaa.gov https://www.sempcosurveying.com/photogrammetry daily 0.75 2021-01-07 https://images.squarespace-cdn.com/content/v1/5e5d3948ecafc05abb055d29/1610062937541-NR1YV8GTLQ41KLI2L8J3/IMG_4746.JPG Photogrammetry - Photogrammetry High resolution orthomosaics and 3D imaging Photogrammetry is the art and science of extracting 3D information from photographs. The process involves taking overlapping photographs of an object, structure, or space, and converting them into 2D or 3D digital models. -autodesk.com https://www.sempcosurveying.com/thermal daily 0.75 2021-08-12 https://images.squarespace-cdn.com/content/v1/5e5d3948ecafc05abb055d29/1628805362335-ZTP5YPKULXDGBXJ725OU/gettyimages-502613498-612x612.jpg Thermal Inspection - Thermography Thermographic inspection “Thermographic inspection refers to the nondestructive testing (NDT) of parts, materials or systems through the imaging of the temperature fields, gradients and/or patterns ("thermograms") at the object's surface.” -wikipedia.com At Sempco we can inspect Substation, Transmission, and Distribution utility components through non-invasive UAV based data collection. No humans near dangerous components means quick and easy access for fast and safe data collection with accurate results and industry leading turn-around times. Collecting this thermal data could be key to catching a faulty component before failure, saving not only time and money but also potentially stopping wildfires before they happen. https://www.sempcosurveying.com/boundary-survey daily 0.75 2021-01-07 https://images.squarespace-cdn.com/content/v1/5e5d3948ecafc05abb055d29/1610063697014-NGULY78Z4Z31IBU90RIT/20171218_154424.jpg Boundary Survey - Boundary Surveys Fast and Accurate “A boundary survey is a way to formally define the boundaries of a property. It focuses largely on defining the corners of a parcel of land. People generally commission boundary surveys before buying, dividing, improving, or building on land. After a boundary survey is complete, a land surveyor will create a drawing. It is better to have a professional do the survey, as measurements need to be as exact as possible.” -courthousedirect.com https://www.sempcosurveying.com/topographic-survey daily 0.75 2021-01-07 https://images.squarespace-cdn.com/content/v1/5e5d3948ecafc05abb055d29/1610061333227-CW5M2EQTRHBABS18WX72/image-asset.jpeg Topographic Survey - Topographic Survey the art or practice of graphic delineation in detail usually on maps or charts of natural and man-made features of a place or region especially in a way to show their relative positions and elevations. -merriam-webster.com https://www.sempcosurveying.com/renewable-energy daily 0.75 2021-01-07 https://images.squarespace-cdn.com/content/v1/5e5d3948ecafc05abb055d29/1609805016949-YA2FHOLYOXKLXN0NWD0E/image-asset.jpeg Renewable Energy - Renewable Energy Wind - Solar - Geothermal Sempco Surveying is helping in lead the charge to develop Solar and Wind resources across the state of Texas. 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