The Process and Water Quality Specialists
Rancho California Alternative Secondary Treatment Evaluation
Rancho California Water District
The Rancho California Water District (District) owns and operates the Santa Rosa Water Reclamation Facility (SRWRF) in Murrieta, CA. Almost all of the wastewater treated at the SRWRF is reclaimed and reused locally for land irrigation. The heart of the treatment process at SRWRF is sequencing batch reactors (SBRs) that have historically performed poorly and struggle to handle peak flows. Trussell Tech is currently working with the District to assess the current performance of each process, document the current conditions of the facility, develop alternatives for either replacing or upgrading the secondary process, and evaluate and estimate these alternatives to provide the district with the best overall upgrade approach to reliably and efficiently produce reclaimed water for the next 20-30 years.
Analyses of the past two years of data and communication with plant operators about treatment challenges form the basis for the recommendations. Focus has been placed on process targets and possible changes to reach optimal efficiency and performance with respect to coagulation, filtration, chlorination, and solids handling. Recommendations will be categorized based on immediate, short, and long term time scales to enable the City to comprehensively plan capital improvements.