# Olivenhain Municipal Water District Planet bids #146468

Engineering Design Services for Electrical Upgrades at 4S Ranch Water Reclamation Facility

**Posted:** September 22, 2026
**Respond By:** October 29, 2026
**Identifier:** 146468
**NAICS:** 541330, 541690

Olivenhain Municipal Water District (OMWD) is seeking qualified engineering consultants for the design of major electrical upgrades at the 4S Ranch Water Reclamation Facility in San Diego County, California.
- Scope of Work:
  - Preliminary and final design for replacement of Main Switchboard S (MSB-S) and Automatic Transfer Switch (ATS)
  - Replacement of electrical conduits, enclosures, lighting, and related electrical components throughout the facility
  - Preparation of specifications, contract documents, and construction cost estimates
  - Optional construction administration support
- Key Requirements:
  - Ensure continuous power to the facility during maintenance and construction
  - Improve reliability and safety of electrical systems
  - Coordination with San Diego Gas & Electric (SDG&E) for utility interface
  - Demonstrated expertise in water reclamation plant processes, electrical engineering, and project scheduling
  - Close collaboration with OMWD staff to maintain plant operations during upgrades
- Estimated Contract Value:
  - Total CIP budget for the project is approximately $3.356 million (design and construction)
  - Design contract value estimated between $1,496,000 and $1,860,000
- OEMs and Vendors:
  - No specific OEMs or vendors are named; opportunity is open to qualified engineering firms
- Notable Aspects:
  - Multi-phase project with deliverables at 30%, 60%, 90%, and 100% completion milestones
  - Option for a one-year contract extension at the District's discretion

### Description

The Olivenhain Municipal Water District (OMWD) is seeking qualified engineering consultants to provide planning, preliminary design, final design, plans, specifications, contract documents, and construction cost estimates for two electrical projects at the 4S Ranch Water Reclamation Facility (WRF). The projects include replacing Main Switchboard S and Automatic Transfer Switch, and replacing WRF Electrical Conduits, Enclosures, and Lighting. The consultant must have expertise in water reclamation plant processes, electrical engineering, and project scheduling and coordination. The work involves close coordination with OMWD staff to ensure integration of staff knowledge and maintaining plant operations during improvements.

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