John Holshouser

John J. Holshouser, P.E., C.W.I

Amphion Analytical Engineering, P.A.

October 2011-Present

Senior Engineer

John Holshouser has been a Professional Engineer with Amphion Analytical Engineering, P.A. for 7 years. He has over 19 years of experience in mechanical integrity assessment, construction testing and oversight, stormwater design, water/wastewater design, and contract administration.

John specializes in performing inspection and analysis of aboveground storage tanks, below-ground dry wells for wastewater pump stations, pressure vessels, piping, equipment, and vessels at various manufacturing facilities, municipal wastewater systems, textile facilities, chemical plants, and various other industrial facilities. He has extensive experience with ultrasonic inspection, magnetic particle inspection, dye penetrant inspection, and visual weld inspection.

John is a licensed, professional engineer in North Carolina and Illinois. 

Work Experience

Mechanical Integrity

Performed mechanical integrity inspections and analysis under various guidelines such as the American Petroleum Institute (API), American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code, and the National Board Inspection Code (NBIC) to meet recognized and generally accepted good engineering practices (RAGAGEP).

Has also performed field inspections, non-destructive testing, performing appropriate engineering calculations and design checks, making recommendations for continued maintenance and repairs, development of repair procedures, oversight of repairs as required, and detailed reporting of inspections and analysis data to meet client and/or appropriate code requirements.

Wastewater Effluent Storage Tank Inspection & Repair

Wastewater Plant- Cabarrus County, North Carolina, United States

Performed coating inspections and structural integrity inspections of a 100,000 gallon elevated effluent water storage tank. He assisted the client in selection and specification of new coatings, design of tank internal repairs and safety upgrades, and provided construction oversight of tank repairs and painting.

Municipal Design and Inspection

Various Clients- United States

Participated in the design of water, wastewater, and stormwater projects for various municipalities.

Water Treatment Plant Improvements

Water Treatment Plant-Amherst County, Virginia, United States

Participated in the design and permitting of water treatment plant improvements including flocculation, sedimentation, and filtration train upgrades to a 2 MGD water treatment plant to increase the design flow to 4 MGD. Services provided also included on-site construction oversight to verify the installation met contract conditions, and to provide expedient closure to any requests for information from the contractor or changes requested by the client.

Wastewater Treatment Plant Design

Wastewater Treatment Plant- Caroline County, Virginia, United States

Designed non-potable water distribution system for a wastewater treatment plant for process use across the facility.

Water Main Construction Oversight and Administration

Confidential Client- Union County, North Carolina, United States

Provided construction oversight and contract administration for 8 miles of 8-inch diameter water main.

Sanitary Sewer Construction Oversight and Administration

Confidential Client- Winston-Salem, North Carolina, United States

Provided construction oversight and contract administration for extensive sanitary sewer replacement and rehabilitation company.

Stormwater Design

Various Projects- High Point, North Carolina, United States

Provided design and permitting services for multiple community level stormwater projects, including water and sewer replacements to accommodate the stormwater improvements, stormwater pipes up to 60-inches in diameter, and box culverts up to 14’x6’ in size.

Projects included work in historical areas, sensitive watersheds, extensive erosion control and water quality design, work in NCDOT rights of ways, and road realignments. Provided design and permitting services for a community level stormwater improvement project in Fayetteville, NC. Project included redesign of the existing stormwater system and realignment/replacement of existing water and sewer utilities as needed to accommodate the new stormwater improvements.

Construction Inspection

Various Projects- Charlotte, North Carolina, United States

Provided third party inspections on numerous construction projects which included testing of soils, concrete, and fireproofing in commercial and residential structures.

Performed International Code Council (ICC) inspections of masonry structures such as Central Piedmont Community College (CPCC) Theater Building, Johnson and Wales Academic Building, and various Charlotte Mecklenburg schools.

Provided structural steel construction oversight and visual weld inspection on structures such as the CPCC Theater Building, UNCC Theater Building, Johnson and Wales Academic Building and dormitories, various Charlotte Mecklenburg School Buildings, and the First Union Annex Building in Charlotte, NC.


  •  B.S., Biological Engineering, North Carolina State University, 1999

Years of Experience

  • Total – 19 years

Professional Registrations

  • Registered, Professional Engineer in North Carolina and Illinois
  • Certified Welding Inspector (CWI)
  • API 653 Certified Tank Inspector
  • Certified Documents Technologist