RethinkWaste Administrative Office Second Floor Expansion Project

The City of Calabasas is requesting sealed bids on the Calabasas Lake Aeration System Replacement Project (Specification No. 2026-13), with bids due August 12, 2026 at 2:00 p.m. and questions due August 5, 2026 at 2:00 p.m. A valid California Class A contractor's license and DIR registration are required at bid submission and contract award.

The scope covers removal and replacement of the aeration system at Calabasas Lake, located within Calabasas Park Homeowners Association. The work includes mobilization and demobilization, aeration cabinet and vault components, tubing lines, air stations, equipment removal and disposal, concrete walkway replacement, and temporary water pollution control. Bidders must transport pre-purchased playground equipment from a City-owned lot at 238349 Bradley Road, Menifee, CA 92586 to the job site; transportation costs are included in the lump sum bid. The project is classified as a public works project subject to California Labor Code Section 1720 prevailing wage requirements.

The Engineer's Estimate is $325,000. Contractors must demonstrate a minimum of five years of experience in work of comparable magnitude and character. All subcontractors performing work exceeding one-half of one percent of the total bid must be listed with California contractor license and DIR registration numbers. The contract will be awarded to the lowest responsible and responsive bidder.

The contract timeline specifies 90 working days from Notice to Proceed for project completion, with construction start no earlier than September 28, 2026 and completion no later than December 28, 2026. City Council approval is scheduled for September 9, 2026, with contract effectiveness on September 16, 2026. Bidders must submit a 10% proposal guarantee as a bid bond, certified check, cashier's check, or cash. Performance, payment, and maintenance bonds at 100%, 100%, and 50% of the bid amount respectively are required upon award, along with proof of required insurance coverage. Bids will be submitted electronically through OpenGov Procurement and opened publicly on August 12, 2026 at 2:00 p.m. The City reserves the right to reject any and all bids and to delay award up to 45 calendar days.