Unofficial Notice of Invitation to Bid (NIB)

Vacaville City is seeking bids from qualified and interested contractors for the following project titled, CONSTRUCTION AND TESTING OF WELL 21, identified under Solicitation ID: W25-2. Work is to be performed near Leisure Town Rd, Vacaville, CA 95687, USA in Solano County.

Create a Free account to view ALL details and documentsNo credit card required

General Project Description

This project involves the construction and testing of a new municipal water supply well (Well 21). The work includes drilling an adjacent shallower well at an existing production well site, performing an 8-hour step pump test and an 8-hour aquifer test. The well will be constructed of a 10-inch diameter stainless-steel casing and louvered well screen with a slot size of 0.050-inches to a depth of 502 feet, installed in a 24-inch diameter borehole drilled to a depth of 512 feet. The project encompasses all drilling, construction, development, testing, and completion activities, along with necessary site preparation and cleanup.

General Bid Items

Quantity: 1 Unit: Lump Sum Work Item: Well Site Mobilization and Demobilization.
Quantity: 50 Unit: Linear Foot Work Item: Conductor Casing, Specifications: 30" O.D. x 5/16" Wall ASTM A-139 Grade B Steel.
Quantity: 462 Unit: Linear Foot Work Item: Production Borehole Drilling, Specifications: 24" Dia. Borehole.
Quantity: 1 Unit: Each Work Item: Geophysical Logging.
Quantity: 451 Unit: Linear Foot Work Item: Blank Well Casing, Specifications: ASTM A-139, Type 304 SS 10.75" O.D. x 1/4" Wall.
Quantity: 54 Unit: Linear Foot Work Item: Louvered Well Screen, Specifications: ASTM A-139, Type 304 SS 10.75" O.D. x 1/4" Wall w/0.055" slots "Ful-Flo".
Quantity: 403 Unit: Linear Foot Work Item: 2" Sounding Pipe, Specifications: Sch. 40 Type 304L SS.
Quantity: 403 Unit: Linear Foot Work Item: 3" Gravel Fill Pipe.
Quantity: 132 Unit: Linear Foot Work Item: Gravel Envelope Gillibrand 8x16.
Quantity: 380 Unit: Linear Foot Work Item: Annular Seal.
Quantity: 1 Unit: Each Work Item: Well Development.
Quantity: 1 Unit: Each Work Item: Install/Remove Test Pump.
Quantity: 16 Unit: Hour Work Item: Well and Aquifer Testing.
Quantity: 1 Unit: Each Work Item: Plumbness and Alignment Testing, Video Survey.
Quantity: 1 Unit: Each Work Item: Disinfection of Well.
Quantity: 1 Unit: Lump Sum Work Item: Disposal of Drill Cuttings.
Quantity: 1 Unit: Lump Sum Work Item: Well Site Clean-up and Records.
Quantity: 0 Unit: Hour Work Item: Standby time.

NAICS Classification

NAICS 237110 – Water and Sewer Line and Related Structures Construction, NAICS 238910 – Site Preparation Contractors

Records and Due Date

This bid opportunity was entered into BidAmerica on December 12, 2025, and was last updated on January 7, 2026. All bids and/or proposals are due on January 8, 2026.

Contractors may log in or create a free BidAmerica account to view full project documents, plans, specifications, addenda, submission requirements, and more project details issued by Vacaville City.

Legal Disclaimer

All bidders are responsible for reviewing and verifying all official bid documentation directly from the issuing agency. BidAmerica aggregates public bid information for advertisement purposes for contractors and government agencies convenience. This Notice of Invitation to Bid is for reference purposes only and is not an official or complete representation of any documents issued by Vacaville City. BidAmerica does not guarantee the accuracy, completeness, or timeliness of any information displayed and shall not be held liable for any errors, omissions, misinterpretations, or damages resulting from reliance on this summary. Contractors must obtain all official information—including plans, specifications, addenda, deadlines, submission requirements, qualifications, and bidding conditions—directly from Vacaville City prior to bidding.