The URL can be used to link to this page

Home My WebLink About20210755 269 Broadway Site Plan Robert Denton J r. CPG LPSS LRS , , , , SENIOR GEOLOGIST PROFESSIONAL EXPERIENCE - . _- Bob Denton brings over 40 years of complex geologic experience to the team in . , all aspects of engineering geology with his primary emphasis being karst geology, hydrogeology and speleogenesis. He specializes in the detection, characterization, and remediation of karst geologic conditions. He performs karst �� .� ;� evaluations utilizing a variety of techniques and technologies and managed � � Virginia's largest stand-alone karst survey on behalf of the US FWS.Additionally, � "''� � ' ��" �;y�� . Bob was appointed to the Virginia Cave Board by the governor, and authored the � � , VA Karst Assessment Standard, worked with local municipalities to assist them h �� in writing karst development ordinances, and has spoken at both national and � ` international karst symposia, including: The Multidisciplinary Conference on Sinkholes and the Engineering and Environmental Impact of Karst and the National Cave and Karst Management Symposium. RELEVANT PROJECT EXPERIENCE EDUCATION Bachelor of Arts—Natural Science, Subdivision Ordinance Hydrogeological Requirements-Berkeley County,WV Thomas A. Edison State College Project Manager and principal author of Section 404.4 "Hydrogeologic Testing Requirements for Subdivisions" of the County Subdivision Ordinance. Worked together CERTIFICATIONS American I nstitute of Professional with the planning commission and county engineering departments to develop the Geologists-Certified revised ordinance, including requirements for water balance, recharge estimates, and Professional Geologist/VA minimum specific capacity for new supply wells. Licensed Professional Soil Scientist (VA#3401000272-Exp Hydrogeological Testing Report Reviewer-Berkeley County,WV o8�202�) Serves as h dro eolo ic testin submission 3rd Part Reviewer for the count to ensure Licensed Remediation Specialist y g g g y y (WV#277 WV EPA-Exp compliance with Section 404.4 of the Subdivision Ordinance. 09�2022) Licensed Asbestos I nspector(WV# St.Elizabeth's W.Campus Redevelopment Hydrogeologic Study-Washington,DC A1010365 WV-Exp 08/2021) Project Geologist for an ERI geophysical survey in karst areas along the pipeline US Fish and Wildlife Services alignment, which totals about 66 miles. The ERI survey commenced in November 2016 Approved Karst Geology Surveyor and is on-going. The ERI survey will be used during construction to identify potential subsurface karst features, generally referred to as voids, and agreed upon AFFILIATIONS minimization/mitigation/remediation measures considered necessary to limit the impact Chesapeake Bay Stormwater Design Round-Table Fellow of construction on the karst environment. Association of Environmental& Engineering Geologists(AEG) National Naval Medical Center Hydrogeologic Study- Bethesda, MD American Institute of Professional Project manager for a hydrogeological investigation to assess potential impact of Geologists(AIPG) proposed construction to Lake Eleanor.A field investigation was developed with a variety Geological Society of America of groundwater monitoring wells. The work plan involved conducting a long term pump (GSA) test in wells to simulate the drawdown of groundwater from construction and to monitor Geo-Institute of the American the impact of the pump test on the lake's water levels.A report was provided summarizing Society of Professional Engineers (ASCE) the study results. Virginia Cave Board(Appointed by Governor) DCPCA Parkside Health Center Hydrogeologic Stud-Washington, DC Virginia Association of Professional Project geologist for a hydrogeologic study for proposed construction of a 3-story building Soil Scientists(VAPSS)-Past with two below-grade parking levels. Subsurface conditions were investigated by drilling President and installing five groundwater monitoring wells. A hydrogeological engineering report Jefferson County WV Water presented the results of the field investigation and engineering analysis of the Advisory Committee hydrogeological data. Recommendations regarding the construction dewatering techniques as applicable to the site were also provided. 1��rracon Robert Denton Jr. CPG LPSS LRS cont'd , , , , SENIOR GEOLOGIST Continental Brick Hydrogeology 3rd Party Review and Dye Trace—Berkeley County,WV Project manager for a hydrogeologic study for Berkeley County Public Water Service District regarding potential impacts to surface water and groundwater by a proposed quarry. Potential impacts were noted in the review's findings, with possible risks to the County's water production wells. A dye trace was performed, and results provided to the client. WB Xpress Project Karst Survey—Hardy, Pendleton, and Randolph Counties,WV Project Manager for karst terrain and preliminary geohazard investigation to identify visible karst features along the 26.5- mile alignment to determine if the project would impact karst resources and/or if potential sinkhole or subsidence development may impact pipeline integrity. Terracon also identified areas of potentially unstable slopes and contributing soils along the alignment where it crossed the Monongahela National Forest land, and prepared a comprehensive report detailing the results. Columbia Gas/NiSource South Fork of the Shenandoah River Crossing—Grove Hill, Page County,VA Project Geologist for HDD engineering study below the south fork of the Shenandoah River where Columbia Gas Transmission's pipeline crosses by means of a subsurface trench. In support of an effort to maintain the pipeline in this area, Columbia requested Natural Resource Group's (NRG) Terracon to obtain data for a feasibility study for HDD installation by means of subsurface exploration and geological reconnaissance. One of the four tasks perFormed by Terracon involved a geophysical field investigation consisting of an ERI survey proposed to identify the presence of significant subsurface voids and solution-enlarged features.The data would be represented as a 2D cross-section,parallel with the placement of the electrodes on the surface. Terracon provided a report to the client based on the results of the boring returns, surface reconnaissance and geophysical investigation. Columbia Gas Gala 1 &2—Clifton Forge,VA Project Geologist for geotechnical engineering and karst terrain assessment services for proposed construction consisting of approximately 2.5 miles of new buried gas pipeline for Columbia Gas of Virginia. The proposed pipeline alignment will follow the existing gas pipeline as closely as possible. The route being considered for the pipeline passes across about 2/3 of a mile of karst terrain located around the bottom of the north and south sides of Wilson Mountain. Subsurface conditions were investigated by drilling a total of seven test borings and perForming 22 seismic refraction survey lines. Recommendations were provided in a final report to the client. Columbia Gas/NiSource Warren County Expansion Project—Front Royal,VA Project Manager for a karst survey to evaluate land surrounding a proposed 2.5-mile pipeline which would transport gas to the 1,329-megawatt Dominion Power Warren County Power Station. Since the project is located in the karst-prone Valley and Ridge Province, karst features were located and delineated within 250 feet on either side of the 24-inch diameter pipeline, which encompassed �151 acres. Several alternative routes and variances were surveyed as well, encompassing a total of over 10 linear miles. A thorough review of available databases and literature was conducted to locate the features and then perFormed a field survey to verify the information collected utilizing GPS to record features. Recommendations were provided regarding designing/constructing the pipeline to avoid such features. Warm Springs Run Watershed Based Management Plan—Morgan County,WV Project Manager for geotechnical services during development of a Comprehensive Watershed Management Plan for the Warm Springs Run (11.8 miles) and its tributaries to provide guidance for stream bank restoration and contaminant mitigation activities. Bob interFaced with West Virginia DEP, US EPA, and USDA-NRCS to develop TMDL reduction implementation goals. The finalized management plan was the first proactive plan without established watershed TMDLs undertaken in the Potomac Direct Drains watershed. 1��rracon