Clark County Dual Media Filters Upgrade and Expansion
MWH, in a joint venture with Tiberti Construction, delivered this $94 million CMAR expansion project, which was the first CMAR project for the Clark County Water Reclamation District. It is a 40 mgd brownfield wastewater treatment upgrade and refurbishment comprising a new filter inlet pump station, 16 new filters and associated chemical treatment facility, filter backwash system refurbishment (civil and mechanical), expansion of the existing UV disinfection capacity, new equalization basin and demolition of redundant facilities. MWH self-performed approximately 40% of the work.
- $2M in savings to the client.
- County serves more than 248,000 business and residential accounts.
- New facility will have a capacity of over 100 million gallons of wastewater.
- Through the collaborative CMAR process, NWS was able to conduct interactive five dimensional (5D) design and constructability review at 60 percent design development.
Project Impact


- The project helped create jobs while both firms applied their expertise in the industrial water/wastewater process improvements by investing in the community’s infrastructure. The Clark County Wastewater Reclamation District is the largest wastewater agency in the State of Nevada, serving more than 248,000 business and residential accounts. The District’s collection system (network of pipes and pumps) totals more than 2,000 miles of pipeline and 27 pumping stations to deliver the wastewater from the homes and business to one of the seven treatment facilities.