Los Angeles Terminal Island Water Reclamation Plant

Los Angeles Department of Water and Power

RMC’s Tom Richardson directed the feasibility-level engineering for this water reuse project. Proposed types of use included landscape irrigation, cooling tower and boiler makeup, vehicle washing, and toilet flushing. Local water reclamation alternatives are being compared with ocean outfall extension/realignment alternatives to determine economic feasibility of local reclamation.

Recycled Water Master Plan, including the Los Angeles Valley Groundwater Replenishment Project

Los Angeles Department of Water and Power

RMC is conducting five separate planning efforts: Indirect Potable Reuse, Non-Potable Reuse, Satellite Treatment, System Reliability, and Long-Term Recycling Vision. The rapid expansion of Los Angeles’s recycled water systems will provide 15,000 AFY for indirect potable reuse via groundwater recharge and 15,000 AFY of new non-potable uses. We are conducting an advanced treatment pilot study and developing a Groundwater Replenishment Master Plan for the 15,000 AFY IPR project.

Groundwater Replenishment System (GWRS)

Orange County Water District

RMC’s Tom Richardson provided engineering support services for the EIR/EIS of Orange County Water District’s GWRS, which entails potable reuse of up to 100 mgd of treatment, including membrane filtration, reverse osmosis, and UV disinfection, as well as 15 miles of 72-inch pipeline, and a pump station. Preceding that, the District had conducted a comprehensive Recycled Water Master Plan (RWMP), which was managed by Tom Richardson.

Oxnard GREAT Project

City of Oxnard

The Groundwater Recovery Enhancement and Treatment (GREAT) Program is the City of Oxnard's adopted and active long-range water supply strategy to combine wastewater recycling, groundwater injection, and groundwater desalination to make more efficient use of existing local water resources to meet projected water supply needs of the City through year 2020. RMC’s Tom Richardson was responsible for the development of technical and economic aspects of the alternatives and the conceptualization, development, and implementation of detailed market assessment and survey associated with the Wastewater Reclamation and Reuse Study. Tom also developed the Water Reclamation Implementation Program to recharge up to 20 mgd of advanced-treated reclaimed water into the local groundwater basin, with subsequent extraction for domestic use and agricultural irrigation.

San Diego Reservoir Augmentation Project

City of San Diego

RMC has been providing programmatic technical services for the City of San Diego’s Recycled Water system since 2004. We are currently managing the City’s IPR Demonstration phase via reservoir augmentation which include facilitating regulatory discussions; overseeing a 1 mgd advanced treatment facility; preparing concept design of the conveyance system; directing public outreach; pursuing funding and convening an independent advisory panel (IAP).

Groundwater Reliability Improvement Program (GRIP)

Water Replenishment District of Southern California

RMC conducted an alternatives analysis to develop projects that will offset the need for imported replenishment water used in the Central and Main San Gabriel Basins. We completed a review of existing documents and regulations, compiled an exhaustive list of supply and facility project options, and developed alternatives using various combinations of those options.

Antelope Valley Groundwater Recharge (GWR) Feasibility Study

City of Lancaster

RMC performed a study on the potential benefits of recharging the local groundwater basin to maximize the use of recycled water in the region. The study assessed the feasibility of implementing a GWR project in the area, provided a roadmap to project implementation should stakeholders decide to move forward, and provided the basis to pursue outside funding. We engaged local agencies and stakeholders to work cooperatively toward this regional initiative, developed a strategy that addresses regulatory, institutional and public acceptance issues, and crafted a demonstration project that enabled the City to implement a project that yields local benefits.

South Bay Water Recycling Program (SBWR)

City of San Jose

RMC managed the development of a master plan for the expansion of the South Bay Water Recycling Program, which included strategies for IPR and presented a discussion of the array of technical, regulatory, institutional, financial, and public perception issues surrounding that option. We developed a recycled water quality model and a hydraulic model, and created a concept design for 10-mgd advanced treatment facility. We are continuing to aid the City’s recycled water program with planning, technical, funding and public outreach support.

Groundwater Recharge

Pasadena Water and Power

RMC prepared a Groundwater Recharge Technical Assessment to evaluate the maximum potential for Pasadena Water and Power to recharge recycled water into the Raymond groundwater basin for IPR using established spreading grounds, including maximum allowable recycled water contribution and retention time requirements under current Draft CDPH regulations as well as aquifer conditions. We compiled historic stream flow and recharge data, conducted groundwater modeling, considered recharge with advanced-treated recycled water and tertiary treated recycled water options, and developed conveyance facility options and estimates of implementation costs for the program.

Recycled Water Projects

West Basin Municipal Water District

RMC’s Greg Bradshaw was involved in the following projects for WBMWD:

• Ultraviolet, Advanced Oxidation, and Disinfection. Greg was responsible for the development of design standards for the UV equipment (12.5 mgd), performance-based specification for the procurement of UV equipment, and groundbreaking regulatory framework for UV disinfection criteria for groundwater recharge reuse projects.
• Independent Advisory Panel. Greg managed commissioning of a panel to study recommendations for increasing to 100% the concentration of recycled water applied to the Barrier system to prevent salt water intrusion and protect public health.
• Advanced Oxidation and Disinfection. Greg was responsible for the development of the preliminary design documents to expand the advanced water treatment facility to 17.5 mgd. He developed design standards for the UV equipment, hydrogen peroxide feed and lime saturation process to eliminate production of byproducts.
• Water Recycling Facilities Research and Regulatory Support. Greg advised the project team on regulatory compliance to support the District’s water recycling programs, including evaluation of water quality impacts from the residual peroxide leaving the AOP UV facility.
• Tertiary Filtration Study. Greg completed filter optimization studies to improve performance of the existing tertiary filters that had difficulty operating on secondary clarified water from the Hyperion Treatment Plant.

Ultraviolet Photolytic Reduction

Water Replenishment District of Southern California

RMC’s Greg Bradshaw developed design criteria to comply with the draft “groundbreaking regulatory framework for NDMA” and groundwater recharge projects for the Alamitos Barrier Water Project, now named the Leo Van der Lans Water Project, in Long Beach, CA. Greg designed and developed performance-based specification procurement documents for the UV AOP system.

Yucaipa Regional Water Filtration Facility

Yucaipa Valley Water District

RMC’s Scott Goldman managed the design, construction and start-up of the Yucaipa Regional Water Filtration Facility (YRWFF). The treatment process includes automatic strainers, Pall microfiltration membranes, nanofiltration, and disinfection with free chlorine. Backwash from the microfiltration and nanofiltration processes is conveyed to the non-potable system while maintaining compliance with TDS requirements. Scott has been involved in the project from the master plan phase through preliminary design, final design, construction and start-up.