This is a service / maintenance or supply contract in Agoura Hills, California. Contact the soliciting agency for additional information.

The Las Virgenes Municipal Water District (LVMWD or District) invites your firm to submit a proposal to provide Construction Management and Inspection Services for the Malibou Lake Siphon Replacement Project (Project). A scope of work is included to assist you in the preparation of your proposal. Failure to submit information in accordance with the requirements in this Request for Proposal (RFP) may be cause for disqualification. Firms may request (not required) a meeting before the proposal deadline by contacting the Project Manager, Alex Leu, at 818-251-2144 or via email at Aleu@lvmwd.com. You may direct any questions regarding this Request for Proposal to Alex Leu at the contact info noted above. The Las Virgenes Municipal Water District (LVMWD or District) is a special district established in 1958. The service area encompasses 122-square miles in western Los Angeles County and includes the incorporated cities of Hidden Hills, Calabasas, Agoura Hills, and Westlake Village, as well as unincorporated areas. The District provides potable water, recycled water, and wastewater service to a population of more than 75,000. Triunfo Sanitation District (TSD) within Ventura County is a joint venture partner with LVMWD in wastewater and recycled water service. The Triunfo Joint Powers Authority (JPA) was formed between LVMWD and TSD in 1964 to construct, operate and maintain a joint wastewater treatment system for their respective service areas, primarily within the Malibu Creek Watershed. The JPA facilities include the Tapia Water Reclamation Facility (Tapia), the Rancho Las Virgenes Composting facilities (Rancho), approximately 60 miles of trunk sewers, and an extensive recycled water transmission and distribution system. During routine inspection and cleaning of the District's trunk sewer system, damage was damage was observed in the siphon conveying flow across Medea Creek at the inlet of Malibou Lake. The siphon is currently located in Malibou Lake in Agoura Hills, an unincorporated community in Los Angeles County, and extends from Lake Vista Drive just west of the bridge over Medea Creek to East Lake Shore Drive along Lake Vista Drive (Attachment A). This is a critical piece in the District's trunk sewer system because it conveys sewer flow from the west part of the District's service area. The siphon was constructed around 1967 and consists of three steel pipes, 10-inch, 14-inch, and 24-inch in diameter. Record drawings indicate the pipes are encased in concrete on three sides, but were laid on bare ground, perhaps without proper bedding material. From manholeto-manhole, the siphon is 134-feet long and is 19-feet below grade at its lowest point. Video observations from the inlet manhole indicate the 24-inch pipeline is largely plugged, and recent attempts by the District to clean and inspect the pipelines were unsuccessful. Furthermore, there is inflow from the lake into the siphon at the inlet that prevents dewatering of the pipelines, and it appears there is buckling in the 24-inch pipeline. The project includes, but is not limited to, constructing gravity sewer pipes ranging in size from 12-inch to 36-inch, an inverted 12-inch and 24-inch double barrel siphon crossing Medea Creek with inlet, outlet, and connecting manholes with grit trap; partial or complete removal of an existing triple barrel siphon and associated structures; access roads to the inlet and outlet manholes; temporary cofferdams and associated dewatering facilities; temporary sewer bypass facilities; and all other work required in accordance with the Contract Documents (Attachment B and C). SCOPE OF WORK The District is seeking professional services from qualified firms to provide construction management and inspection services for the Malibou Lake Siphon Replacement Project. The selected consultant will provide project construction management and inspection services throughout the construction phase. The scope includes providing day-to-day administrative, budget management, site observation, and coordination for the project to meet scope, schedule, and budget objectives. The proposal shall include construction manager(s) and inspector(s) resume which highlight certifications and experience managing similar projects. Pre-Proposal Meeting By request (optional) For questions, or to arrange a meeting (optional) before the proposal deadline, contact Alex Leu at 818-251-2144 or via email at aleu@lvmwd.com. Anticipated Acceptance of Proposal (Tentative) March 4, 2024