INTRODUCTION
The City of Gonzales is located 17 miles south of Salinas and is in the heart of the 90-mile-long Salinas Valley (aka: “Salad Bowl of the World”). The City of Gonzales is referred to as the “Wine Capital of Monterey County” and the 2020 Federal Census lists a population of 8,650. The city prides itself on being a net-importer of jobs due to the city’s Industrial Business Park attracting a variety of ag-related businesses including Taylor Farms and Del Monte Fresh processing facilities. More information about the city can be found at our website: www.GonzalesCA.gov The City of Gonzales is seeking Statements of Qualifications from consultants to provide Wastewater Design Services to support the city’s efforts to expand the wastewater system beyond the current 1.3MGD permitted capacity.
OVERVIEW
The city operates a wastewater system including a municipal wastewater treatment plant (MWWTP) to collect and treat domestic, commercial, and industrial wastewaterin the city. Current wastewater flows are:
Dischargers Gallons/day
Industrial wastewater 750,000
Domestic wastewater 400,000
Commercial wastewater 50,000
Total = 1,200,000
The first step in increasing the capacity of the city’s wastewater system is constructing an Industrial Wastewater (IW) system. The project is fully designed, and the city is close to executing a State Revolving Fund loan. Completing the IW system will allow the city to shift 750,000 gallons/day from the MWWTP, greatly reducing flows to the MWWTP. This will allow the city to take one of the two treatment trains at the MWWTP offline to rehabilitate and upgrade the MWWTP.
While constructing the IW System, a consultant will design the upgrades for the treatment processes to ensure the MWWTP meets the new Waste Discharge Requirementsissued in April 2023.
WASTEWATER PHASING
Phase 1 - Build the 1.0 MGD IW System on city owned parcels adjacent to the MWWTP. The IW System will be constructed under two contracts:
• IW Conveyance Contract (10,000 LF of 24/27-inch pipe) • IW Treatment Facility
Once the IW Conveyance Contract is complete, the city will temporarily shift WW/IW flows to the new IW Pipeline to perform video inspection and maintenance work (ie, epoxy coat manholes) on the existing 21- inch WW Trunk Main that was constructed in 1981.
Phase 2 - Upon completion of the IW Treatment Facility (IWTF) 750,000 gallons/day of ag-wash water will be shifted from the MWWTP to the IWTF. This will allow the city to rehabilitate and upgrade the treatment process at the MWWTP to meet new WDR requirements. When that work is completed, the city WW system will have a capacity of 2.3MGD.
Phase 3 - Add additional treatment processes at the MWWTP to expand system capacity to 2.9MGD which will accommodate projected housing growth through 2050.
Phase 4 - Expand the IW System treatment capacity to 3.5 MGD to accommodate additional processing facilities in the city’s Industrial Business Park and add a recycled water component to the IWTF.
CONSULTANT SCOPE OF SERVICES
The city is interested in engaging design consultants on the following efforts:
1. Conceptual, Preliminary and Final design of a new treatment process at the MWWTP to comply with 2023 RWQCB WDR Permit.
2. Design other efforts to rehabilitate the MWWTP (ie, sludge removal, add aeration, line ponds, add groundwater monitoring wells)
3. Grant applications to the State Water Resource Control Board, Economic Development Agency, and other entities
4. Design support during bidding (i.e. assist in preparation of addenda, attend pre-bid meeting, review submitted bids, if requested, prepare conformed drawings and specifications after the close of bid).
5. Design temporary bypass to shift WW/IW flows to the new IW Pipeline to perform video inspection and maintenance work (ie, epoxy coat manholes) on the 21-inch WW Trunk Main.
6. Assessment of existing 21-inch sewer trunk main from Alta Street to the MWWTP. This includes video inspection, condition assessment, and preparation of bid documents for recommended repair work.
7. Design support during construction (i.e. virtually attend weekly construction meetings, submittal review for conformance with drawings and specifications, respond to contractor requested for information (RFIs), prepare record drawing set.
CITY RESPONSIBILITIES
The city will be responsible for the following items:
1. Discussions with any Private Property Owners for easements and other needs.
2. Coordinating review and issuance of city building permits
3. Compiling the Bid Documents (Front End, Public Notice, Bid Schedule, Technical Specifications, Plans, Permits and other materials)
4. Issue bid documents to builders exchanges and interested contractors
5. Run pre-proposal meeting
6. Run public bid opening
7. Prepare staff report for award of the construction contracts
8. Prepare city council staff report for project acceptance
PROPOSAL CONTENT AND REQUIREMENTS
Your proposal should include the following:
Cover Letter - Provide the following information:
• Firm name, office location(s), telephone numbers, and e-mail addresses of the main contact(s).
• Staff person we can contact regarding the proposal
• Number of years the firm has performed related professional services • Type of organization: individual, partnership, corporation, other (please specify). • Indicate if your firm has any conflicts of interest related to your current contracts.
Technical Approach and Scope of Work
• Provide a detailed summary of the services your firm will provide • State why your firm is qualified to perform the requested services. • List of personnel along with their experience, office location, professional association involvement, expected availability and role(s) they are expected to have. • Provide information on any subconsultants
• Describe how your firm will deliver your services
• Provide a detailed schedule for the various efforts and milestones Provide four public agency references with full contact information (name, title, agency, address, email address and phone number(s).
The SOQ shall be limited to 30 pages excluding cover letter, resumes and any sample documents included in the appendix.
Provide two separate sealed envelopes (one for the SOQ and the other for the Rate Schedule(s) and desired revisions to the city’s consulting agreement) inside one larger sealed envelope clearly labeled, “SOQ FOR DESIGN SERVICES FOR WASTEWATER PROJECTS.” Deliver four printed and bound copies of your proposal along with PDF copies of the proposal, consultant’s Rate Schedule and desired revisions to the city’s consulting agreement on a thumb drive to:
Patrick Dobbins, Public Works Director/City Engineer
City of Gonzales
PO Box 647
147 Fourth Street
Gonzales, CA 93926
Phone: 831-675-5000
Email: [email protected]
SCHEDULE
The RFQ schedule is:
Milestone Date
City Issues Request for Qualifications March 28, 2024
Non-Mandatory PreProposal Meeting at Community Meeting Room at Gonzales Police Station (109 Fourth Street, Gonzales) with optional WWTP visit
April 9, 2024 at 9:30 AM
SOQ Submittal Deadline April 25, 2024 at 3:00 PM
City Staff reviews submitted SOQs April 29, 2024
Interviews (if needed) May 9, 2024
City negotiates scope/fee/schedule for initial Task Orders with top ranked consultant(s) May 10, 2024
Approval of Contract(s) and On-Call List at City Council Meeting May 20, 2024
CONTRACT
The City’s standard consultant agreement is attached. Provide a statement regarding the firm’s ability to execute the city’s consultant agreement and include desired revisions to the city’s agreement in the separate envelope transmitting the Consultant Rate Schedule.
The Consultant’s services will be provided on an hourly not-to-exceed basis under executed Task Orders through a Master Services agreement. The expected Task Orders for 2024 are:
1. Preliminary Design of new treatment process at MWWTP that will meet 2023 WDR requirements from Regional Board
2. Design Support during construction of the IW Pipeline and IW Treatment Facility contracts
3. Video Inspection and Assessment of 21-inch Sewer Truck Main along Fermin Lane
4. Plans, Specifications and cost estimate for rehabilitation of 21-inch Sewer Truck Main along Fermin Lane
SELECTION CRITERIA
The city will evaluate the submitted SOQs and rank them according to the following criteria:
Content of Proposal
1. Understanding the nature of the requested services
2. Approach to the providing the requested services
3. Firm’s ability to present flexible and cost efficient options to achieve the City’s goals Qualifications of Firm
1. Proposed Design Manager’s experience and qualifications
2. Firm’s experience in providing the requested services for similar sized public agencies in California and more specifically in the Monterey Bay Region over the last five years
3. Qualifications and experience of consultant team related to the RFQ’s desired services
4. Reference checks
ATTACHMENTS
1. City’s Standard Consulting Agreement
2. IW System “White Paper”
3. 2006 WDR
4. 2023 WDR
5. 2023 Water/Sewer Rate Study