Over the last 25-years, DRC has designed new or improved water and wastewater facilities up to 700 mgd. We have provided design, engineering and other support services for the City of Los Angeles; Environmental Engineering Division since 1986. For the last 15-years, DRC has been awarded three consecutive 5-year prime contracts due to excellent work and consistent delivery on time and within budget. The experience of our engineers provides a unique project focus and technical excellence to our clients for the design and construction management of water and wastewater facilities including large and small diameter conveyance and interceptor sewer systems.

DRC is consistently at the forefront of innovation, state-of-the-art concepts and design for water and wastewater facilities. The variety of specialized water and wastewater engineering services we provide to our clients include the design of advanced and secondary treatment, land and grey water reuse systems, bio-solids management facilities and beneficial re-use systems.

Our services have included instrumentation, process control, electrical, mechanical and civil design, start-up and commissioning, operations planning, facility testing, construction management.

This experience includes the design of the following treatment components:

Headworks facility design including influent screening, grit removal and pumping.
Primary clarification
Full Secondary treatment
Land discharge systems
Bio-solids management facilities employing aerobic and anaerobic digestion
Bio-solids pumping, thickening, digestion, dewatering, and beneficial reuse
Digester gas reuse
Odor control facilities
Standard Operating Procedures and O&M Development
Maintenance of Plant Operations
Water/Wastewater Treatment
Collection, Distribution and Pumping
Water Storage, recycling and re-use
Water Resources, Watershed and Stormwater Management
Flood Control, Planning and Design
Municipal
Energy
Dams and Reservoirs
Water Resources
Wastewater Treatment and Collection
Tunnel and Pipeline Design
Construction Management Services
Design and Planning
Water Quality