Nulca Leadership


Dennis Tarosky

President of UtiliQuest / STS / Locating Inc., Mr. Tarosky has more than 29 years of experience in the services and utility damage prevention industries. His experience includes over 20 years of financial and operational management with oversight of performance and quality initiatives including development and execution of cost control and operational process improvement. Dennis has been with UtiliQuest for over 6 years and is a member of CGA, serving on the Stakeholder Advocacy committee. He is a graduate of The Pennsylvania State University with a BS in accounting and a MBA from CW Post University.

Patrick Burk
Vice President

Patrick Burk currently serves as the Executive Vice President for the Olameter Corporation and has been fully engaged in the damage prevention industry since 1984. Patrick has been involved in the locating industry, damage claim management and construction side of the utility business both as an owner/operator and director. Patrick serves on the board of NULCA as well as on the advisory board for the MEA. Pat attended ONU and Cal State Fullerton, majoring in Business Management and Accounting. He proudly served in the United States Marine Corps from 1974-1984. Pat is actively involved in Veteran programs and initiatives.

Josh Hinrichs

Mr. Hinrichs has been President of ELM Locating since 2012. Prior to that he was Chief Operations Officer for several years. Josh has been employed by ELM Locating & Utility Services since September of 2001. He earned a B.S. in Business Administration from the University of Montana. Following graduation, Josh joined the Utility industry as an employee of 3 Rivers Telephone Cooperative, the largest of its kind in the state of Montana. He also spent several years with Montana Rail Link and its parent company, Washington Corporations before joining ELM. In addition to currently sitting on the Board of Directors for NULCA, Josh actively participates in the Montana Utility Coordinating Council (MUCC) and various national and regional CGA groups.

Bill Deckard

Mr. Deckard is a 32 year veteran of the paint and coatings industry. He joined The Sherwin Williams Company in 1991 and has held numerous positions. He became involved with the Krylon Industrial Group in 2005 partnering with customers in the underground utility marking industry.

Ron Peterson
Executive Director

Ron Peterson is the current Executive Director of Nulca. Ron has been involved in the industry for over 20 years with extensive experience in locating and damage prevention. He has been involved with NULCA since 2003 as well as with the Common Ground Alliance since its inception. Ron was the recipient of the 2007 Ron Olitsky Award given each year to the CGA’s “most valuable member” and the 2008 NUCA Associate of the Year for his work in damage prevention.

Greg Jeffries
Past President

Mr. Jeffries is the previous President of NULCA and a member of the Board Executive Committee. Mr. Jeffries is a 30-year industry veteran with extensive experience in utility, road & bridge construction, surveying, subsurface utility engineering and utility location services. Mr. Jeffries is extensively involved with several One Call Centers and related One Call Legislation & Underground Contractor Issues. Mr. Jeffries is a multi-state licensed utility contractor and is active with various NULCA groups. Mr. Jeffries is a frequent contributor to industry publications and is often called upon for expert testimony in utility damage incidents. Mr. Jeffries is SUE/UC Department Manager for the Dallas Region, North & West Texas, Oklahoma, and Arkansas for Surveying And Mapping LLC (SAM), Dallas, Texas.


Dan Bradley

Mr. Bradley has been involved in the Underground Utility Locating/Damage Prevention industry for over 30 years. In 1979 he was involved in the start up of one of the first contract locating projects in the country; a Mountain Bell project in Arizona. Since then he has served at all levels of the business from technician to the President of a major national utility locating company. Dan is currently one of the owners and the President/CEO of Safe Site Utility Services LLC in Phoenix, AZ. Safe Site provides private utility locating and subsurface utility investigation services. Dan has been involved with NULCA since its inception as a Board Member, and represents the locating industry as a co-primary on the CGA Best Practice Committee. Dan was a co-chair of the committee that wrote the Locating and Marking Chapter of the Best Practices Study and served on the original Board of Directors of the Common Ground Alliance.

Mark Drew

Mark Drew Educated in the UK, has worked in the utility Test Equipment market all his working life. He has founded, developed and managed both domestic and international sales teams, and is a leading expert in outside plant test instrumentation. With Mr. Hoare and two others, he founded Vivax in 2005.

Drew Greer

Mr. Greer has extensive experience in the utility locating industry. His professional history includes positions in Civil Engineering, Utility Locating Technician, and Contract Locating local and corporate management. He also worked many years as a trusted equipment supplier to Utility Companies, Excavators, and the Contract Locating community.

Christopher Koch

Christopher Koch is President of ZoneOne Locating and has been in the locating business since 1996. He's worked as a field technician, supervisor, manager, trainer, and consultant. From 2004-2006, he was head of safety and training for UtiliQuest. A member of NULCA's Executive Board for over ten years, Koch has served as Secretary, Vice-President, and President. In 2009, he co-chaired the committee that revised the NULCA Competency Standard for Locate Technicians. He has published over twenty articles on damage prevention and is a frequent speaker on damage prevention issues. He holds a bachelors degree with honors from St. Cloud State University and a Graduate Certificate in Human Resource Management from Capella University.

Marc Levesque

Mr. Levesque has been in the subsurface utility industry since 1992. He began his career as a Designator for So-Deep Incorporated in Manassas Park, VA travelling extensively throughout the Mid-Atlantic region. He moved back to the Northeastern US in 1994, when an opportunity arose to join an upstart contract locating company at the ground floor. Mr. Levesque has been involved in all aspects of contract locating for On Target Utility Services from Locate Technician, Area Supervisor, Regional Supervisor, Regional Manager, Director of Quality Assurance & Training, to his current position of Director of Risk. Under his oversight are all of the following responsibilities: Manage all damage cases throughout their lifespan; Create, maintain and deliver all locate technician training programs; Manage all company damage and audit data. Mr. Levesque has maintained a NULCA Board Seat since 2007. He was on the original committee that prepared the NULCA Locator Competency Standards in 1999, as has been involved in subsequent updates to the Standard. Mr. Levesque earned his MBA in 2013.

Dan Florenzo

Dan currently is the President of One Call Concepts, Inc. Previously, he has served as the Chief Financial Officer and the company Controller. Dan has spent most of his career in underground utility damage prevention having joined the company in 1988. His previous experience includes time in public accounting and as Controller of a small public corporation. He has a BS in accounting and is a Certified Public Accountant.

Mike Marrero

Mr. Marrero serves as a Regional Director for USIC, LLC. USIC is America's leading provider of utility infrastructure locating services. Mike has over 20 years of utility locating experience in the US and Canada. Mike is an active member of the CGA where he is a member of the Education and Marketing Committees. Mike is also involved in managing the International Utility Locate Rodeo as master judge. Mike served in the United States Army Reserves for 6 years as a Medic and is a veteran of Desert Storm.

Casey McCorquodale

Casey McCorquodale serves as the National Key Accounts Manager for Radiodetection, working directly with line locate contractors. She is a Summa Cum Laude graduate from the University of Alabama with a BS in Business Management. She received her Master of Business Administration from the University of Mobile, also as a Summa Cum Laude graduate. Her background includes advertising, sales/marketing, as well as extensive entrepreneurial experience, having owned several businesses in the arts and entertainment industry. She comes to Radiodetection from employment as the Business Development Director of Payne Pipeline Services, a pipeline and environmental consulting firm with primary focus in the oil and gas field. She was also tasked as the Project Manager largely on projects dealing with Public Awareness and Damage Prevention and conducted Public Awareness seminars throughout the Southeast. Casey resides in Mobile, Alabama.

Dean Parker - Legal Counsel

Mr. Parker joined Hinshaw & Culbertson LLP in June 1979. He is the Leader of one of the firm’s two Business Transactions Departments. In that capacity, he provides guidance for the group's attorneys in a number of practice groups, including Commercial Transactions; Real Estate & Construction; Special Assets, Bankruptcy & Reorganization; and Estate Planning. He is a past regional director.

Brett Ramsey

Mr. Ramsey has over 20 years experience in the contract locating industry with extensive experience ranging from field supervision, training, damage investigation and claims litigation, and has served on the Virginia State Corporation Commission’s Advisory Committee. Mr. Ramsey joined Accumark in 2012 as its Vice President of Operations.

Terry Riesen

Ms. Riesen has spent the past 8 years working in Regulatory Compliance for several groups within Marathon Petroleum. In 2013, she assumed the role of Pipe Line One Call Process lead. The position provides management and oversight of Marathon Pipe Line’s one call process, including one call response, line locating, and excavation inspection. The position also requires oversight of nearly 50 contract excavation activity monitors. Ms. Riesen is also heavily involved in state one call board activity and state one call legislative changes. Prior to this role, Ms. Riesen worked as a Health Environment & Safety Professional acting as a liaison between Marathon and numerous enforcement agencies as well as leading inspections, particularly those inspections performed by the Department of Transportation. Ms. Riesen started as a paralegal in the Marathon’s Legal Group specializing in Health, Environment and Safety issues, and providing guidance to Marathon’s pipeline, terminals, and refining groups. Prior to her employment with Marathon, Ms. Riesen spent 9 years with UPS as a supervisor working in operations, training, security, and loss prevention.

John Walko

John Walko came out of the high tech industrial sales field to start Excavac Corp in 1989, as a custom manufacturer of vacuum excavation systems and related tooling. He holds broad ranging patents regarding processes and tools used in that industry. John represented the locate industry on the Executive Committee for the original Common Ground Report in 1998-1999, making sure that NULCA had a strong voice in the proceedings. He was instrumental in forming the Transition Board for the creation of the Common Ground Alliance, and has served on several CGA committees over the years. He remains active on the NULCA Board., and remains an avid supporter of the CGA.

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