OSDS Design Guidelines Document

The Maryland Onsite Wastewater Professionals Association (MOWPA) is pleased to announce the completion of a new document entitled Design Guidelines for Onsite Sewage Disposal Systems in Maryland (First Edition, March 2019). It was developed by MOWPA to help educate Environmental Health Specialists, engineers, soil scientists, and other related professionals on how to properly design pressurized soil absorption systems in Maryland. The guide book is primarily focused on the design of:

  • Sand mounds;
  • At-grade mounds;
  • Low pressure distribution; and
  • Drip dispersal.

It also includes chapters on conventional system design, as well as an overview of site evaluation, treatment technologies, and hydraulics. Real-world design examples are used to provide the reader with a step-by-step instruction on how each system was designed. In addition, the appendices include MDE guidance memoranda, friction loss tables, and other supporting documentation that are helpful in understanding non-conventional OSDS in Maryland.

Co-authored and edited by Kevin Koepenick, L.E.H.S., the document was peer reviewed by experienced regulators, designers, and installers from across the state. It is a must-have document for anyone involved in the review, design, and installation of OSDS in Maryland.

Cost: $100 for MOWPA regular members and associate members; $195 for non-members

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