LEE + RO is providing the Santa Clarita Valley Water Agency (Agency) with engineering services for an evaluation of replacement options, and preparation of the preliminary and final design for the replacement of an underground storage tank at its Rio Vista Water Treatment Plant (RVWTP). The existing 8,000-gallon Underground Storage Tank (UST) provides diesel fuel for the RVWTP Emergency Standby Generator. The replacement tank will be of similar size but will be an Aboveground Storage Tank (AST).
LEE + RO evaluated replacement options, including installation of a new AST, a new 100-gallon fuel Simplex Day tank installed inside the existing engine generator room, as well as evaluation of the current permitting and regulatory requirements, and the constructability issues for the UST replacement.
LEE + RO’s scope of services includes:
UST Replacement Evaluation and Preliminary Design Technical Memorandum
This task included site investigation and obtaining/reviewing existing record drawings, operations, and maintenance information, permit information, and discussions with SCVWA staff on the current UST facility, day tank, and standby generator system. LEE + RO:
- Evaluated the current technical, Code, and regulatory requirements applicable for the current UST installation and the replacement tank
- Coordinated with the City, County, and State regulatory agencies, including Los Angeles County Fire Department, South Coast Air Quality Management District, and the Los Angeles County Department of Public Health for the items impacting the UST replacement
- Defined all permit requirements and permit timelines applicable to the project
- Evaluated cost benefits for the applicable replacement options and provided recommendations for the replacement
- Evaluated temporary facilities necessary to install the replacement system
- Submitted a Technical Memorandum with recommendations summarizing findings, providing preliminary layout drawings, equipment performance specifications, construction cost estimate, and construction schedule
3D Architectural Rendering Presentation
This task included preparation of three-dimensional (3D) renderings of the project for presentation to the SCVWA Engineering and Operations Committee, illustrating the UST Replacement project and its construction sequencing and staging.
Final Design, Project Management, and Contract Documents
LEE + RO will provide the final design for the UST replacement system, that includes:
- Above Ground Storage Tank (8,000 Gal)
- Day Tank (100 Gal)
- Containment Structure of a 4-foot high or higher wall to hold 8,000 gallons complete with stairs and railings
- Evaluation of the use of agricultural-grade R99 alternative fuel for the backup generator
