Solutions for Multi-family Properties

Orenco offers solutions for multi-family projects regardless of size.  For just a few units, or for thousands, Orenco's technologies can help you protect your investment.


Little Norway Osprey Cove
Lake Almanor, California

Multi-family Properties

Multi-family housing, where multiple separate residential units are contained within one building, has traditionally required access to gravity sewer and favorable zoning regulation that allows higher density. However, today’s demand for affordable housing and development in unique areas, such as mountain or beach resorts, requires planned communities that may not have immediate access to central sewer. In such areas, decentralized systems are the solution, because they support density as well as address environmental and economic concerns.

A decentralized system requires vastly lower capital outlays — as well as much lower costs for operation, maintenance, and labor — than does the typical gravity sewer. With installation of a decentralized system, residents enjoy superior service without financially burdening the community for years to come.

Chris Hartman, an Orenco Engineered Systems Dealer with Jensen Precast, provided an AdvanTex Treatment System for the owners of a beautiful property along Lake Almanor in Northern California.  The system for Little Norway Osprey Cove (473 KB, PDF) blends into the surroundings, allowing the owners and tenants to take full advantage of their natural surroundings.

Our Technologies

Effluent Sewer

From on-lot interceptor tanks, only filtered liquid is discharged through small-diameter, shallow collection lines to common downstream treatment, whether that is a neighborhood system or a municipal plant miles away. 

AdvanTex® Treatment

Textile sheets in AdvanTex filter pods produce clear, high quality effluent.  Modular construction allows for phased installation of total treatment capacity.


Orenco designs and manufactures control and monitoring panels for customers all over the world.  Our panels are used in water, wastewater, and industrial process applications.