Bid Details for CCWD: RANDALL-BOLD WATER TREATMENT PLANT CLEARWELL, CHEMICAL FEED, AND SEDIMENTATION BASIN IMPROVEMENTS

Project
CCWD: RANDALL-BOLD WATER TREATMENT PLANT CLEARWELL, CHEMICAL FEED, AND SEDIMENTATION BASIN IMPROVEMENTS
Owner
Contra Costa Water District’s (CCWD’s)
Bid Time
04/27/2026 2:00 pm
Description

The Work includes, but is not limited to the following:
 In each of the two (2) sedimentation basins:
o Measuring existing basins and existing equipment, and confirming
equipment to be reused within both sedimentation basins relating
to the sludge collection equipment.
o Demolition, removal and disposal of existing sludge collection
equipment, including longitudinal collectors and cross collectors.
o Furnishing and installing: new sludge collection equipment,
including longitudinal collectors and cross collectors; stainless
steel access stairways; and drain valves.
o Resurfacing concrete launders.
 Demolition, removal and disposal of existing clearwell piping and valves
and existing chemical feed system equipment and piping.
 Capture and disposal of residual chemical products and flush water from
chemical systems including calcium thiosulfate, EarthTec (copper sulfate
pentahydrate), caustic soda, hydrofluorosilicic acid, liquid alum, non-ionic
polymer, and cationic polymer. See Appendix D for expected residual
product volumes remaining in each chemical system and location for
disposal. Work shall be completed in accordance with all applicable state
and federal regulations.
 Furnishing and installing: an above-ground bypass piping system at the
clearwell; new clearwell piping; and new chemical feed system equipment
and tubing.

 Spot repairs of coating on clearwell piping.
 Testing, startup, and commissioning of new equipment.
 Providing training to CCWD staff for new equipment.

 

Project is to be completed within (610) consecutive days

Location
3760 Neroly Rd, Oakley, CA 94561
Amount
$4,564,000
Bid Walk

PRE-BID CONFERENCES WILL BE HELD AT 10 A.M. ON WEDNESDAY, APRIL 1, 2026
AND TUESDAY, APRIL 7, 2026.
PROSPECTIVE BIDDERS SHOULD MEET AT THE
RANDALL-BOLD WATER TREATMENT PLANT
3760 NEROLY ROAD
OAKLEY, CALIFORNIA

 

Prospective bidders should meet at Randall-Bold Water Treatment Plant (3760 Neroly
Rd, Oakley, CA 94561). Prospective bidders must supply their own hard hats, safety
glasses, reflective vests, and work boots, and wear them during the job site visit. CCWD is
not responsible for supplying Personal Protection Equipment (PPE), and prospective
bidders will not be allowed to attend the job site visit if they fail to supply and wear the
required PPE.
Although the job site visit is not mandatory, no allowance will be made for any
unfavorable conditions or events which might have been foreseen from a thorough
examination of the site by the Contractor. No other job site visits will be scheduled.

Requirements
Availability
Prospective bidders can obtain up-to-date information about this project including a listing of prospective bidders, and may download the official electronic bidding documents via CCWD’s online bid portal at https://pbsystem.planetbids.com/portal/52380/portal-home.