The Lower San Joaquin River Phase C-2 project is part of a larger flood-risk-management program to reduce flood risk in the North, Central, and South Stockton basins in California. Phase C-2 focuses on the Calaveras River Right Bank levee system and includes reaches totaling approximately 23,130 feet of levee between the San Joaquin River confluence and North El Dorado Street.
Mule Dam is located near the city of Ione, in Amador County, California. The 540 acre-feet reservoir holds treated effluent from nearby Mule Creek State Prison (MCSP). Classified as a high-hazard potential dam (HHPD) by the California Division of Safety of Dams (DSOD), the failure of this structure would likely cause significant damage and loss of human life. The project's objective was to evaluate the impacts of a potential breach. Information from the study was used to update the dam's Emergency Action Plan (EAP).
The LA County Metropolitan Transportation Authority (Metro) requested sustainability engineering services for water resources, conservation and compliance. Under legal obligations Metro is required to track, implement, and report on the following categories: climate change & resiliency, energy, solid waste & recycling, and water. In order to maintain compliance in daily operations and capital projects, Geosyntec is tasked with providing research, analysis, planning, project development, and engineering services relating to the full life cycle of Metro's water sustainability and compliance programs.
A confidential investor and development team expressed interest in investing, acquiring, enhancing, and expanding a geothermal energy facility located in a well-known, yet complex, geothermal area in Imperial Valley, California. To evaluate the viability of this investment, they requested a comprehensive analysis of the site's existing resources and facilities to evaluate the following: The potential for the existing power plant equipment to regain up to 20 milliwatts (mW) and expand up to 50 mW as per agreement terms with the power agency The conditions of the subsurface infrastructure, supply and return wells, and their potential for enhancement The viability of a new energy recovery design concept using oil-field-tested directional drilling and how it may be applicable in expanding the field to 250 mW The technical, environmental, and financial viability of the investment Preliminary assessments suggested that the facility’s current technology was not fully operational. The client group sought to understand the potential advantages of not only purchasing the plant, but also enhancing its capabilities in collaboration with third parties. This necessitated detailed evaluations of both surface and subsurface conditions such as geological characteristics, permitting requirements, stakeholder dynamics, regulatory compliance, and power plant performance.
A confidential client owns and operates a data center facility in Irvine, California, that includes onsite cooling towers to manage the temperature conditions in the building. The cooling towers use makeup water to manage the quality of the process water and optimize system operations. The facility is engineered and permitted to receive both potable and recycled water from the local water district, Irvine Ranch Water District (IRWD). IRWD rules and regulations mandate the use of recycled water when feasible. However, our analysis has shown that, due to its characteristics, the use of IRWD’s recycled water reduces the efficiency and longevity of the cooling towers or would require significant pretreatment.
As part of the Riverbank Army Ammunition Plant Base Reuse Plan, the City of Riverbank wished to create a unique industrial park and awarded Aemetis the role of master developer for site redevelopment. In this role, Aemetis proposed to develop the “Carbon Zero 1” biofuels facility to produce renewable diesel and sustainable aviation fuel for the growing renewable fuels market, providing alternatives to fossil fuels throughout the central San Joaquin Valley region of California. The project would use processing technologies such as gasification to create a syngas, and through further refinements, renewable hydrogen for use in producing the desired low-carbon-intensity fuels.
Geosyntec planned and designed dual-purpose groundwater-recharge ponds to enhance a wetland habitat on the Pacific Flyway, a network of habitats that supports millions of migratory birds. Bear Creek in Atwater, California, is surrounded by double-cropped farmland, which puts the surrounding area at risk of increased likelihood and intensity of flooding, especially in disadvantaged communities. Following a conservation easement from the United States Fish and Wildlife Services (USFWS), the La Paloma Mutual Water Company looked to foster habitat restoration at this site. The goal of the project is to plan and design the re-establishment of approximately 1,171-acres of irrigated farm ground to floodplains, providing a habitat for migrating waterfowl.
Hillcrest Country Club engaged Geosyntec to help create and implement a water master plan for their property. The objective of the master plan was to evaluate water use and help guide projects and practices related to sustainable water use at the site.
Geosyntec was engaged by a citrus juice production client that operates a fresh food production facility in Los Angeles County. The facility generates wastewater mixed with citrus pulp and other lemon debris from equipment and facility cleaning and refrigerator condensate. The facility’s industrial wastewater pretreatment process removes lemon particles, debris, and suspended oils from wastewater through a dissolved air flotation system (the GEM System) that causes the lemon material to float. This floating material (also known as flocculated lemon solids) is skimmed off the water, accumulates in a conical tank, and is later disposed of off-site. This facility is permitted to discharge industrial wastewater to the Los Angeles County Sanitation Districts (LACSD) under the Industrial Wastewater Discharge Permit (IWDP). LACSD notified the client that payment of supplemental sewer capacity fees could apply based on their industrial wastewater discharge quantity and quality characteristics.
The Los Angeles County Metropolitan Transportation Authority (Metro) owns and operates several bus washing facilities within the transportation tunnel in the greater Los Angeles area. Because the facilities discharge wastewater into the sanitary sewer, they maintain several industrial wastewater discharge permits (IWDPs) with utility companies including Los Angeles Sanitation District (LASAN), Los Angeles County Sanitation District (LACSD), and other local sanitation companies. The Metro facilities we support have different wastewater-flow quantity and quality, pre-treatment systems, and criteria for monitoring and reporting. To manage these variables, Geosyntec provides comprehensive industrial wastewater management services to Metro to support permitting and compliance.
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