Design of a flow control station for Water Reclamation Facility No.1
Background
The City of Corona (City) owns and operates the Water Reclamation Facility No.1 (WRF1). The existing reclaimed water supply is provided by three City-owned and operated Water Reclamation Facilities (WRF1, WRF2 and WRF3) and two non-potable wells. The WRCRWA is a future source of reclaimed water for the City.
The City of Corona, Jurupa County Sanitary District, Home Gardens Sanitary District, City of Norco, and Western Municipal Water District are member agencies and communities served by the Western Riverside County Regional Wastewater Authority (WRCRWA) treatment plant.
The WRCRWA Treatment Plant is an essential part of the region's infrastructure, providing wastewater treatment services to the community. The Plant produces between one and 10 million gallons per day (MGD) of Title 22 tertiary-treated reclaimed water. Currently, the City’s flow allocation from the Plant is 2.62 MGD.
The City has two sets of pumps that convey the reclaimed water from the WRF1 tank to various areas within the city. The first sends water through a 12” pipeline to meet the system’s demand. The second sends water through a 24” pipeline for delivery to Cota Ponds. WRF1 also delivers reclaimed water to Butterfield Park and the Stagecoach area.
The City may have the opportunity to purchase additional water in the future, requiring improvements to the flow control station for WRF1.
Situation
While each Flow Control Station (FCS) may have unique characteristics, they all share a common element: the need for a valve to manage head and regulate flow. Given the individuality of each project and client, it is of utmost importance to meticulously size and select the most suitable valve. Additionally, in most cases, isolation valves are installed to facilitate maintenance tasks. Finally, the inclusion of instruments to measure flow and pressure are essential.
Scope of Work
The objective of the project is for LEE + RO to design a new flow control station and the necessary piping and appurtenances to allow delivery of up to 10 MGD of reclaimed water from the WRCRWA Treatment Plant to the City of Corona’s WRF1 and Cota Ponds.
Piping includes slip lining approximately 4,100 LF of a 24” steel pipeline and potentially installing 5,000 LF of new pipeline to replace/augment the existing 12” PVC pipeline, if needed. Additionally, the project also involves constructing a flow entry structure (comprising piping, mechanical components, structural elements, etc.) at the WRF1 Tank. This structure is essential for water discharge from the WRCRWA Plant into the WRF1 tank.
Scope of Services
The comprehensive scope of services for this project encompass the following components:
- Project Administration: Ensuring thorough oversight and effective coordination to guarantee project success.
- Research Existing Conditions, Survey: Diligent site assessment to facilitate informed decision-making processes.
- Geotechnical, Corrosion Control, and Seismic Evaluation: Evaluating the resilience of the proposed construction to natural and environmental challenges.
- Conceptual and Preliminary Design: Drafting conceptual solutions that balance practicality with innovation.
- Environmental Compliance: Ensuring all regulatory requirements are met or exceeded.
- Final Engineering and Preparation of Construction Contract Documents
- Bidding Services
- Engineering Services During Construction
