The ECO:LOGIC approach to facilities design is to provide the best solution for the client, whether that be conventional treatment or more leading-edge, advanced treatment facilities. Ease of operations, reliability, the incorporation of local standards in design elements, and cost effectiveness all factor into finding the best solution to the issue at hand.

No other firm in Northern California can offer the breadth of design experience that ECO:LOGIC offers. The following highlights ECO:LOGIC’s depth of experience in water and wastewater design:

Conventional Activated Sludge
Oxidation Ditches
Sequencing Batch Reactors
Membrane Bio-Reactors
Biological Nutrient Removal (BNR) Facilities

Conventional and Advanced Filter Technology
Conventional Disinfection with Chlorine Gas
Hypochlorite
Ultraviolet (UV) Disinfection

Advanced Treatment for Priority Pollutants and Toxin Removal, including:

Maturation Ponds
Micro-Filtration
Ultra-Filtration

Solids Handling and Disposal, including:

Storage, Thickening, Dewatering, Advanced Drying, and Disposal

Representative Design Projects

Reno-Stead Reclamation Facility Expansion - Reno, Nevada

ECO:LOGIC designed the Reno-Stead Water Reclamation Facility (RSWRF) Expansion project to increase the treatment capacity from 1.5 to 2.0 Mgal/d. The project involves the construction of a new plant headworks, aeration basins, blower building, biofilter, clarifier, added filtration capacity, as well as other related support equipment and site improvements. Several treatment alternatives were evaluated with the final selection being an activated sludge biological nitrogen removal process to initially work in parallel with and eventually replace the existing oxidation ditch process. Design was completed in June 2004. The $16-million construction project was completed in fall 2005.

City of Rio Vista Wastewater System Master Plan, WWTP Expansion, and Northwest WWTP Design Development - Rio Vista, California

ECO:LOGIC staff has participated in the master planning of all wastewater facilities for Rio Vista over the past 14 years. The existing City Main WWTP consists of a secondary treatment processing and direct discharge to the Sacramento River. ECO:LOGIC staff developed a plan for interim expansion and designed improvements to expand capacity. A new Northwest WWTP is now under design after being master planned to enable elimination of a small package treatment plant and to serve the largely undeveloped northern General Plan area.

City of Lincoln - New Wastewater Treatment and Reclamation Facilities Project - Lincoln, California

ECO:LOGIC completed planning, pre-design, and design of a new wastewater treatment and reclamation facility (WWTRF) with staging plans to accommodate City buildout, and possible regional capacity. The initial stage was funded partially through up-front fees paid by three major private developers. Project design and construction contracting has been administered by the development group with City of Lincoln oversight. Treatment facilities include an influent pump station and headworks, oxidation ditches with anoxic basins and mixed liquor recycle pumps for nitrogen removal, clarifiers, and return sludge pump station. The secondary plant is followed by maturation ponds for flow equalization and reduction of priority pollutant constituent concentrations and then tertiary treatment facilities. Tertiary facilities include dissolved air flotation, chemical coagulation, flocculation, filtration, ultraviolet (UV) disinfection, and effluent re-aeration for surface water discharge to Auburn Ravine Creek.