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What the Future Holds for Decentralized Wastewater Treatment Systems

  • Iowa Onsite Wastewater Association - IOWWA - CIOWTS
  • Maine - Local Plumbing Inspectors
  • Maine - Site Evaluator
  • Maine - Voluntary Certification for On-Site System Contractors
  • Massachusetts - Soil Evaluator
  • Massachusetts - System Inspectors
  • National Environmental Health Association - NEHA
  • Nebraska - Onsite Wastewater System Contractors
  • New Hampshire - Designers & Installers
  • New York - Land Surveyors
  • New York - Professional Engineers
  • Ohio - Sewage Treatment System Contractors

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Onsite sewage treatment and disposal systems (OSTS) are a part of the nation’s Decentralized Wastewater Treatment Infrastructure and play a significant role in protecting public health and the environment. These systems have come a long way with the associated professionals, regulatory programs, and manufacturers. But where are OSTS’s going? What are the next items on the horizon which our industry will face?  There are advancements in technology from contractor’s equipment to new advanced wastewater treatment technology and the implementation of regulations which require higher treatment levels. There will be new items to address such phosphorus and Contaminants of Emerging Concern (CECs), which are chemicals and toxics that have been found in waterbodies that may cause ecological or human health impacts and are not currently regulated. This presentation will discuss the potential future pathways where decentralized systems can face the next generation of challenges.


Speaker Biography

Dennis F. Hallahan, P.E., Technical Director

Dennis F. Hallahan, P.E., is the Technical Director of Infiltrator Water Technologies. Dennis has over 30 years of experience with the design and construction of on-site wastewater treatment systems. He has authored several articles for on-site industry magazines and has given numerous presentations nationally on the science and fundamentals of on-site wastewater treatment systems. Dennis also oversees a department that is responsible for product research and testing for both Universities and private consultants. The department develops system sizing charts for national and international approvals and assists customers and field representatives in the planning and review of large decentralized systems. He received his MS in civil engineering from the University of Connecticut and his BS in civil engineering from the University of Vermont.  Dennis is a registered professional engineer in Connecticut. He has been with Infiltrator for over 16 years and in his current position as Technical Director, he is responsible for the technology transfer between Infiltrator and the regulatory and design communities. Dennis also holds several patents for on-site wastewater products. Member ASCE, WEF, serves on the NOWRA Technical Practice and Educational Committees, also on the New England Water Environment Federation’s Small Community Committee.


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