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  5. ›RFP/Q - WWTP No. 2 and WWTP No.3 Phase 0 Projects

City of Bakersfield·California

RFP/Q - WWTP No. 2 and WWTP No.3 Phase 0 Projects

Closes 11/19/2026$2M – $5MRequest for Proposal
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Description

The City of Bakersfield is seeking an engineering consulting firm to provide full design services (pre‑liminary design, detailed design, bidding support, and construction observation) for Phase 0 upgrades of its two municipal wastewater treatment plants (WWTP 2 – a 25 MGD trickling‑filter plant, and WWTP 3 – a 32 MGD activated‑sludge plant). The consultant will be responsible for project management, preparation of Preliminary Design Reports, detailed design packages, bid‑phase assistance, and construction‑phase services, with separate fee line items for each plant. The scope includes modernizing influent pumping, primary and secondary treatment equipment, solids handling, odor control, and associated non‑process facilities. The contract may be awarded for one or both plants, and the design phase is expected to last up to 30 months for Plant 2 and up to 18 months for Plant 3. • Full‑service engineering design for Phase 0 upgrades of two wastewater plants (trickling‑filter and activated‑sludge). • Separate fee structures for project management, preliminary design, detailed design, bidding support, and construction observation. • Mandatory submission of six copies of the SOQ, signed General Information Sheet, and signed sample agreement by November 19, 2026. • Optional site‑visit/ pre‑bid meeting on October 21, 2026; questions due by November 9, 2026.

Attached files

The solicitation documents live at the source — open the bid source above to download them.

Contact

Evette Roldan(Assistant Water Director)

[email protected]

(661) 326-3249

Key dates

Opened
10/9/2026
Questions due
11/9/2026
Pre-bid meeting
10/21/2026
Site visit
10/21/2026
Closes
11/19/2026
Projected award
11/25/2026
Duration
30 months

Last updated

Details

Type
Request for Proposal
Industry
Engineering Services
NAICS
541330
Solicitation №
Bid ID 147138

Budget estimate

$2,000,000 – $5,000,000

No contract value is disclosed, but design‑consulting for two municipal wastewater plants typically ranges from $2 million to $5 million in total fees, depending on scope depth, staff levels, and hourly rates for bidding/construction phases. The larger Plant 2 (≈30‑month design) will likely command the higher end of the range, while Plant 3 (≈18‑month design) will be closer to the lower end.

AI estimate from the solicitation

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