McMahon helps communities and industries meet the increasing demands on their wastewater treatment systems.  Strict regulatory requirements, aging infrastructure, and limited budgets challenge owners and operators every day.  McMahon provides reliable wastewater services to help our clients navigate through these ever expanding challenges.  We are innovative leaders in the wastewater treatment industry, and have designed systems ranging from 0.05-mgd to 100-mgd.

Our wastewater team provides complete professional engineering services related to all aspects of wastewater treatment.  We offer full-service, in-house design, including architectural, structural, mechanical, civil, plumbing, and electrical and controls design.