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Sierra County Waterworks District #1  (Calpine)

Re-Bid for:

Well and Treatment Project

Bid Opening Date:

Location

(For Hand Delivered Bids)

Mandatory Pre bid Tour:

February 19, 2026 2:00 pm

March 12, 2026 2:00 pm (per Addendum 1)

Calpine Community Center

103 County Rd

Calpine, CA 96124

February 3, 2026, 10:00 am
Calpine Community Center
103 County Rd
Calpine, CA 96124

2nd Prebid Tour will beheld on February 25, 2026 at 10:00 am at the same location.

Prospective Bidders must attend 1 of the two prebid tours.

Map to Site

Project Documents:

Interested bidders may download and utilize electronic plans and specifications from this site free of charge. For bidding purposes, interested bidders are responsible for checking this site with the refresh button to verify that they have the latest information including all Addenda.

Interested parties may download Plans after adding their name and contact information to the Plan Holders List through the following link:

Calpine Well and Treatment Plans <<<Click Here to Add Name to Plan-Holders List!

Contractors may view the current Plan Holders List here: 

Plan Holders List

Addendum No. 1

Addendum No. 2

Addendum No. 3

Advertisement.pdf

Calpine Well and Treatment Contract Docs.pdf

Calpine Well and Treatment Technical Specifications.pdf

Wage Determination.pdf

Test Well Report.pdf

Geotechnical Report.pdf

Pre-Bid 1 Sign In Sheet.pdf

Pre-Bid 2 Sign In Sheet.pdf