Since 1947, National Underground Group, formerly known as Hoffman Southwest Corp., has provided a full spectrum of services to maintain healthy underground infrastructures. Today, through our family of businesses, Pro-Pipe, Tri-State Utilities, Accumark, Pipe Vision and Benchmark, National Underground Group is focused on providing underground infrastructure solutions to municipalities, utilities, government agencies, construction companies and engineering firms throughout the U.S.

CCTV Operator(Underground Utilities)

National Underground Group

Utilities Locator

Residential Carpentry

General Manager

Staff Accountant

HR Business Partner

Independent Beauty Consultant

Regional Safety Manager

Safety Manager

Site Foreman/Safety Manager

Warehouse Safety Manager

1st Ranger Battalion

Vice President Human Resources

Senior Human Resources Business Partner

Senior Vice President of Human Resources

Human Resources Director

Human Resources Manager

Adjunct Faculty - Psychology

Assistant Director of Human Resources

Staff Training and Development Coordinator

Payroll Manager

Office Manager

Divison

Mimecast

Outlook

Microsoft Office 365

Amazon AWS

StatusPage IO

Constant Contact

Vice President of Risk

Director of Safety

In 1990, Tri-State Utilities was founded by Steven F. McSweeney. Steve's intent was to provide (ever evolving) technical services to support the maintenance needs of municipal utility departments. After three decades of experience, Tri-State has emerged as the regional authority in trenchless utility rehabilitation and now employs over 90 people.In 2007 Steve passed the day to day management of the company into the capable hands of his two sons, Andy & Joe, who partnered with National Underground Group in Irvine, California to assist in expanding the quality services we offer to municipal and federal clients.Our services include pipe cleaning, CCTV Inspection, smoke and dye testing, grouting, and trenchless pipe lining featuring the C.I.P.P. Corp. cured in place process. In order to perform those services effectively, you need dependable equipment and Tri-State's fleet is modern and state of the art. Our Vactors, inspection rigs, boiler trucks, winches, backhoes, and dump trucks are all up to date and maintained to maximize production and eliminate costly down time.All of our employees are trained in the latest industry technologies and safety procedures and we employ a full time professional safety officer. We also operate a drug free work force and are very proud of our people and their accomplishments. As a tribute to our employees, Tri-State has earned NUCA's National Safety Award, and was named Hampton Roads Utility and Heavy Contractor Associations Contractor of the Year for 2000 and 2008.Our goal is to provide a service that meets the needs of our customers and improves the environment.

Tri-State Utilities

Project Manager

Environmental Health and Safety Specialist

VICE PRESIDENT

Vice President Operations

Superintendent

CIPP Foreman

Test Hole Crew Foreman

Facilities Manager

equipment manager

Vice President / General Manager

Mechanical Engineer

Foreman

Utility Foreman

Project Coordinator

Utility Worker I

CIPP Technician

Wastewater Interceptor Technician

Heavy Equipment Operator

Established in 1993, Precon Marine, Inc. is a diversified marine contractor specializing in heavy marine construction, waterfront construction and related services throughout the East Coast area and abroad. With an extensive inventory of equipment and a stable, skilled offshore workforce, Precon Marine is able to take on major bridge, pier, and bulkhead rehabilitation work, subaqueous utility installation as well as provide call-out services for underwater inspections and commercial diving needs.In the marine construction industry, nothing speaks louder than a good quality job completed on time and on budget. At Precon Marine, Inc., we take pride in our success in just that - bid the job fairly, give the customer what he wants and finish the job on time. This is a huge undertaking in marine contracting; considering weather, environmental concerns, and unforeseen obstacles; any one of which can delay a project and increase costs. It is for these reasons we select our work carefully and stick to what we do best.Precon Marine, Inc. now operates from our location in Hampton Roads.  Our office, yard, and mooring facilities located on the Intracoastal Waterway, one of the busiest harbors on the U.S. east coast.  Our location allows us to mobilize and coordinate all operations to anywhere in the world 24 hours a day.

Daran Hinnant

Vice President of Risk at National Underground Group

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