Frank Lasch Jr.

Frank Lasch, Jr.

Bill Barna

Bill Barna


Frank E. Lasch Jr, President and Founder
An experienced navy diver, Frank retired from the U.S. Navy after 20 years of service to found EXND Diving Marine Services in 2006.  While with the Navy he received his 1st Class Diver Certification in 1993 and 2nd Class Diver Certification in 1988.

Mr. Lasch has an A.A. in Applied Marine Engineering and has taken the National Highway Institute, Underwater Bridge Inspection Course #130091.

Navy & Civilian Qualifications

  • Small Boat Coxswain
  • LCM-6 & LCM-8 Boat Coxswain
  • Recompression Chamber Operator
  • Divers Life Support System (DLSS) Operator
  • DLSS Re-Entry Control Supervisor (QA)
  • MK-16 Technician
  • MK-25 Technician (LAR-V Drager)
  • Recompression Chamber Inside Tender
  • Recompression Chamber Supervisor
  • Unlimited Diving Supervisor (US Navy)
  • ADCI Air Diving Supervisor Cert #20752
  • PADI – Advanced Open Water, Nitrox Diver, Rescue Diver
Bill Barna, PE / Diver  

Mr. Barna is a Civil Engineer with more than 10 years of civil/structural engineering experience on design and inspection of waterfront facilities including, piers, bulkheads, bridges, spillways, and headwalls. He is trained and experienced in non-destructive testing including ultrasonic testing, magnetic particle testing, and liquid penetrate testing. He is a Registered Engineer in Alaska, South Carolina, and New York.

Mr. Barna is experienced in SCUBA and is an ADCI Surface-Supplied Air Diver. He is trained in accordance with OSHA diving standards 929-CFR 1910.410 on the use of tools, equipment, techniques, diving operations and emergency procedures. He has worked in hazardous diving conditions. His tasks have included Level I, Level II, and Level III underwater and above water structural inspections, bridge repair, data collection, and compilation as well as technical report writing and engineering design.

Mr. Barna has over ten years of experience in hydrographic surveying and is experienced in the operation of a variety of hydrographic and sonar equipment including real-time differential GPS, robotic range-azimuth laser-based position systems and HYPACK hydrographic survey software. He has executed projects involving tidal hydraulics, dredging, scour analysis, velocity profiles, and the design of coastal structures. Additionally, he is familiar with various side-scan sonar and underwater acoustic imaging systems and has successfully used these systems in the field.


  • FHWA-NHI Course 130091 – “Underwater Bridge Inspection”, 2007
  •  FHWA-NHI Course 13051 – "PONTIS Bridge Management Inspection", 2000
  •  FHWA-NHI Course 13055 – “Safety Inspection of In-Service Bridges” (80-Hr.), 2001
  •  Concrete Piles: Deterioration & Repair, 2006
  •  MIC (Microbial Induced Corrosion), 2006
  •  Coastal Engineering Workshop: A Highlight of Changes from the Shore Protection Manual (ASCE Coasts, Oceans, Ports, and Rivers Institute), 2003
  •  Confined Space Entry
  •  Fall Protection Training
  •  Nondestructive Testing ASNT Certified - Level II Liquid Penetrant, Magnetic Particle Limited, 2001
  •  STOP Training
  •  Lock Out / Tag Out
  •  First Aid
  •  CPR
  •  Emergency Oxygen Administration
  •  Kirby Morgan Dive Systems, Inc. Helmet and Band Mask Operator/User Training Certificate I-08163
  • Emergency First Responder 2011


American Shore and Beach Preservation Association

National Association of Commercial Divers

American Society of Civil Engineers

American Institute of Steel Construction

Civil Engineers Club of Charleston

National Rifle Association

Eagle Scout

The Citadel: B.S. Civil and Environmental Engineering, 1999