Construction & Business Opportunities


Zone 7 collaborates with many businesses and contractors to best serve our customers and partner agencies. Current requests for proposals (RFPs) and quotes (RFQs) can be found here. We look forward to working with you to continue our mission of providing excellent water and flood protection services throughout the Tri-Valley area.

Construction site with cement building being worked on.


Roof Repair of Maintenance Shop, Upper and Maintenance Trailer at Del Valle Water Treatment Plant

Request for Proposal (RFP)

Posted:  March 13, 2023

Mandatory Pre-Bid Meeting/Site Visit: March 20, 2023, at 10:00 a.m. at the Upper Maintenance Trailer, 901 E. Vineyard Ave. Livermore, CA 94550

Questions Due: March 27, 2023, at 2:00 p.m. PT

Bids/Proposals Due:  April 3, 2023, at 2:00 p.m. PT

Relevant documents in PDF format with date in document

Request for Proposal (RFP # 2024-03)