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Pool Engineering
ENGINEERING 251: Model Aquatic Health Code - Design & Construction Section

Learning Objectives

  • Interpret the history, current status, and future of the MAHC’s Design & Construction module.
  • List the key requirements such as plans, materials, equipment standards, aquatic venue structure, indoor/outdoor environment, recirculation and water treatment, decks and equipment, filter/equipment room, hygiene facilities, water supply/wastewater disposal, and specific venues.
  • Discuss the new filtration turnover requirements and calculations.
  • Describe the minimum requirements for disinfection systems such as chemical monitoring and control.


The Model Aquatic Health Code (MAHC) was developed by several volunteer teams representing various aspects of aquatics from design and construction to operations and maintenance. This program provides a brief overview of the Design & Construction section with a primary focus on the filtration turnover requirements and calculations that have advanced significantly since the MAHC began development in 2007. It is expected that health departments around the country will adopt some of these consensusbased guidelines and this class will help you stay one-step ahead of your local health department.

Time/ Credits

1:75 hrs


Scott Hester, P.E.

President of Counsilman • Hunsaker in St. Louis, MO
(314) 894-1245

  • B.S. Civil Engineering, Southern Illinois University, Carbondale, IL
  • Principal-in-Charge of monitoring project development; reviewing shop drawings; and coordinating construction issues with the project architect, construction manager, swimming pool contractor, and other key project personnel.
Scott Hester, P.E.

As President of the Counsilman • Hunsaker team, Scott is responsible for leading the daily operations of the company. He provides comprehensive industry experiences in all aspects of Counsilman• Hunsaker including business development, design and engineering, quality control and facility operations and services. Known as a high-integrity, energetic leader Scott has a diverse portfolio of experience in aquatic facilities spanning all market sectors. Scott is also a recognized leader in the aquatics industry and has shared this knowledge by providing educational based presentations throughout the country. A past recipient of the Aquatics International Power 25 award and has also published numerous articles ranging in topics from aquatic facility design to facility operations.