BIDS WILL BE RECEIVED UNTIL THE HOUR OF
2:00 PM PST, on Thursday, February 26, 2026,
ELECTRONICALLY AT [email protected]
REQUEST FOR SEALED BIDS
POLYMER FOR WASTEWATER TREATMENT AT THE
TERTIARY TREATMENT FACILITY
PUR 26-019
EXHIBIT 1
INVITATION FOR SEALED BID
POLYMER FOR THE WASTEWATER TREATMENT AT THE TERTIARY TREATMENT FACILITY PUR 26-019
i
IFB INFORMATION
Contact Rajvir Sahota
Email Address [email protected]
Call To Schedule Testing No later than 2:00 pm on
Thursday, January 8, 2026
MANDATORY
On-Site Meeting
(Bench Testing)
Week of January 19, 2026
(Scheduled Vendors Only)
2500 Navy Drive, Stockton, CA 95206
Performance Testing Week of February 2, 2026
(Invited Vendors Only)
2500 Navy Drive, Stockton, CA 95206
Due Date for Questions
and Clarifications
February 12, 2026
2:00 PM PST
Due Date for Response
to
Questions/Clarifications
February 19, 2026
5:00 PM PST
IFB Submittal
Electronic Mail or on a
USB drive
[email protected] or
Office of the City Clerk, City Hall,
425 North El Dorado Street,
Stockton, California 95202
IFB Submittal Due Date &
Time
Thursday, February 26; 2:00 PM PST
Proposal shall be electronically
delivered to the email address above or
by mail or in person on a USB to the
address above at or before the hour
stated. Proposals arriving after the
opening deadline will not be accepted.
Anticipated Date for
Council Approval
May 12, 2026
Required Bid Security &
Bonds
☒ Bid Security ☐Bonds
EXHIBIT 1
INVITATION FOR SEALED BID
POLYMER FOR THE WASTEWATER TREATMENT AT THE TERTIARY TREATMENT FACILITY PUR 26-019
ii
Table of Contents
1.0 GENERAL INFORMATION .................................................................. 5
1.1 REQUEST FOR SEALED BID ...................................................................................... 5
1.2 INVITATION TO SUBMIT A BID ................................................................................... 5
1.3 LOCAL BUSINESS PREFERENCE .............................................................................. 5
1.4 LOCAL EMPLOYMENT—PUBLIC WORKS CONTRACTORS (Not Applicable) ...... 6
1.5 CONSEQUENCE OF SUBMISSION OF BID ................................................................ 6
1.6 EXAMINATION OF BID MATERIALS ........................................................................... 6
1.7 ADDENDA AND INTERPRETATION ............................................................................ 6
1.8 DISQUALIFICATION ..................................................................................................... 7
1.9 BID REJECTED ............................................................................................................. 7
1.10 CONDITIONS TO BE ACCEPTED IF ANY WORK IS SUBCONTRACTED ................ 7
1.11 LICENSING REQUIREMENTS ...................................................................................... 8
1.12 INSURANCE REQUIREMENTS .................................................................................... 8
1.13 HOLD HARMLESS ........................................................................................................ 9
1.14 APPLICABLE LAW ....................................................................................................... 9
1.15 METHOD OF PAYMENT ............................................................................................... 9
1.16 NOTICE TO OUT-OF-STATE VENDOR ....................................................................... 9
1.17 TERM ........................................................................................................................... 10
1.18 COMPETITIVE PRICING ............................................................................................. 10
1.19 FUNDING ..................................................................................................................... 10
1.20 UNCONDITIONAL TERMINATION FOR CONVENIENCE ......................................... 10
1.21 AUDITING OF CHARGES & SERVICES .................................................................... 10
1.22 BID SECURITY ............................................................................................................ 10
1.23 CONTRACT BONDS ................................................................................................... 11
1.24 AWARD ........................................................................................................................ 11
1.25 CHANGES ................................................................................................................... 12
1.26 OTHER GOVERNMENTAL AGENCIES ..................................................................... 12
1.27 LIQUIDATED DAMAGES ............................................................................................ 12
1.28 PRODUCT OWNERSHIP ............................................................................................ 12
1.29 CONFIDENTIALITY ..................................................................................................... 12
1.30 PRETESTING AND APPROVAL ................................................................................ 12
1.31 PREVAILING WAGES & CONTRACTOR/SUBCONTRACTOR REGISTRATION REQUIREMENTS(Not Applicable) .......................................................................................... 13
1.32 CONTRACTOR’S SAFETY RESPONSIBILITY .......................................................... 13
1.33 PROTEST POLICY ...................................................................................................... 14 EXHIBIT 1
INVITATION FOR SEALED BID
POLYMER FOR THE WASTEWATER TREATMENT AT THE TERTIARY TREATMENT FACILITY PUR 26-019
iii
2.0 BACKGROUND/GENERAL NATURE OF SPECIFICATION ............. 15
2.1 SCOPE OF SERVICES ............................................................................................... 15
3.0 BIDDER'S CHECKLIST .............................................................................. 24 BID DOCUMENTS .................................................................................................................... 25 COST TABLE…………………………………………………………………………………………. 26
BIDDER’S AGREEMENT ......................................................................................................... 27 NON-COLLUSION .................................................................................................................... 28 SUBCONTRACTOR LIST ......................................................................................................... 30 EXHIBIT 1 INSURANCE REQUIREMETS………………………………………………………….31
EXHIBIT 1
CITY OF STOCKTON
INVITATION FOR SEALED BIDS
4 NOTICE INVITING SEALED BIDS
NOTICE IS HEREBY GIVEN that sealed bids are invited by the City of Stockton, California for specifications for PUR 26-019 POLYMER FOR WASTEWATER TREATMENT AT THE TERTIARY TREATMENT FACILITY, in strict accordance with the specifications.
The City of Stockton is seeking competitive bids from qualified vendors interested in a multi-year contract to provide the City with polymer for the Dissolved Air Flotation Thickeners (DAFT) at the Tertiary Treatment Facility.
The bid specifications and forms can be obtained from the City of Stockton’s website at www.stocktonca.gov/mudbid and must be electronically delivered to [email protected] or on a USB drive to the Office of the City Clerk, City Hall, 425 North El Dorado Street, Stockton, California 95202, up to but not later than 2:00 pm on Thursday, February 26, 2026.
A mandatory bench testing will be held during the week of January 19, 2026, at 2500 Navy Drive, Stockton, CA 95206. Contact Phil McKinney at (209) 937 -8736 to arrange testing at the Regional Wastewater Control Facility in accordance with the specifications by Thursday, January 8, 2026 at 2:00 p.m. (PST). Bidders will be notified of their test results. ONLY BIDDERS WHO SUCCESSFULLY COMPLETE THE TEST WILL BE PERMITTED TO BID. SAMPLES ARE TO BE PROVIDED AT NO COST TO THE CITY.
Failure to attend will result in the rejection of your bid.
The City reserves the right to reject any and/or all bids received.
Information on Bid Process/Clarification/Technical Data Rajvir Sahota, Procurement Division
(209) 937-8357
e-mail: [email protected]
DISCLAIMER: The City does not assume any liability or responsibility for errors/omissions in any document transmitted electronically.
Dated: December 29, 2025
KATHERINE ROLAND, CMC, CPMC, CITY CLERK
EXHIBIT 1
CITY OF STOCKTON
INVITATION FOR SEALED BIDS
5 CITY OF STOCKTON
1.0 GENERAL INFORMATION
1.1 REQUEST FOR SEALED BID
The purpose of this sealed bid is to request bidders to present their qualifications and capabilities to provide POLYMER FOR WASTEWATER TREATMENT AT THE TERTIARY TREATMENT FACILITY PUR 26-019 for the City of Stockton.
1.2 INVITATION TO SUBMIT A BID
Bids shall be submitted no later than 2:00 pm, on Thursday, February 26, 2026, by email or on a USB drive in the office of:
CITY CLERK
CITY OF STOCKTON
425 NORTH EL DORADO STREET
STOCKTON, CA 95202-1997
The bid should be identified in the Subject as " POLYMER FOR WASTEWATER TREATMENT AT THE TERTIARY TREATMENT FACILITY PUR 26-019." Any bid received after the due date and time indicated will not be accepted and will be deemed rejected and returned, unopened, to the bidder.
1.3 LOCAL BUSINESS PREFERENCE
Stockton Municipal Code Section 3.68.090 reads as follows:
Preference shall be given to the purchase of supplies, materials, equipment, and contractual services from local merchants, quality and price being equal.
Local merchants who have a physical business location within the boundaries of San Joaquin County, and who have applied for and paid a business license tax and registration fee pursuant to Stockton Municipal Code Title 5, Chapter 5.08, License Taxes, shall be granted two (2) percent bid preference.
Local merchants who have a physical business location within the boundaries of the City of Stockton, and who have applied for and paid a business license tax and registration fee pursuant to Stockton Municipal Code Title 5, Chapter 5.08, License Taxes, shall be granted five (5) percent bid preference.
This section is intended to provide preference in the award of certain City contracts in order to encourage businesses to move into and expand within the City. (Prior code § 3-106.1; Ord. 2014-03-18-1601 C.S. § 1) EXHIBIT 1
CITY OF STOCKTON
INVITATION FOR SEALED BIDS
6 1.4 LOCAL EMPLOYMENT—PUBLIC WORKS CONTRACTORS (Not Applicable) Bidders must comply with City of Stockton Municipal Code (SMC) Section
3.68.095, Ordinance No. 011 -09, adopted September 1, 2009, effective Oct ober 1, 2009.
1.5 CONSEQUENCE OF SUBMISSION OF BID
A. The City shall not be obligated to respond to any bid submitted nor be legally bound in any manner by the submission of a bid.
B. Acceptance by the City of a bid obligates the bidder to enter into a contract with the City.
C. A contract shall not be binding or valid against the City unless or until it is executed by the City and the bidder.
D. Statistical information contained in these documents is for informational purposes only. The City shall not be responsible for the accuracy of said data. City reserves the right to increase or decrease the project scope.
1.6 EXAMINATION OF BID MATERIALS
The submission of a bid shall be deemed a representation and warranty by the bidder that has investigated all aspects of the bid, that it is aware of the applicable facts pertaining to the bid process and its procedures and requirements, and that it has read and understands the bid. No request for modification of the provisions of the bid shall be considered after its submission on the grounds that the bidder was not fully informed as to any fact or condition. Statistical information that may be contained in the bid or any addendum thereto is for informational purposes only.
The City disclaims any responsibility for this information, which may subsequently be determined to be incomplete or inaccurate.
1.7 ADDENDA AND INTERPRETATION
The City will not be responsible for, nor be bound by, any oral instructions, interpretations, or explanations issued by the City or its representatives. Any request for clarifications/questions/answers of a bid shall be made in writing/e-mail and delivered to:
CITY OF STOCKTON
ATTN: RAJVIR SAHOTA
PROCUREMENT DIVISION
425 NORTH EL DORADO STREET
STOCKTON, CA 95202-1997
[email protected]
Such request s for clarification shall be delivered to the City by 2:00 pm on Thursday, February 12, 2026 . Any City response to a request for clarifications/questions/answers will be posted on the City’s website at EXHIBIT 1
CITY OF STOCKTON
INVITATION FOR SEALED BIDS
7 www.stocktonca.gov/mudbid by 5:00 pm on Thursday, February 19, 2026, and will become part of the bid addendum. The bidder should await responses to inquiries prior to submitting a bid.
1.8 DISQUALIFICATION
Any of the following may be considered cause to disqualify a bidder without further consideration:
A. Evidence of collusion among bidders;
B. Any attempt to improperly influence any member of the evaluation panel;
C. Any attempt to communicate in any manner with a City of Stockton elected official during the bid process will, and shall be, just cause for disqualification/rejection of bidder’s bid submittal and considered non - responsive.
D. A bidder's default in any operation of a contract which resulted in termination of that contract; and/or
E. Existence of any lawsuit, unresolved contractual claim, or dispute between bidder and the City.
F. No person, firm, or corporation shall be allowed to make or file or be interested in more than one bid for the same supplies, services, or both; provided, however, that subcontract bids to the principal bidders are excluded from the requirements of this s ection: Section 3.68.120 of the Municipal Code.
1.9 BID REJECTED
A bid shall be prepared and submitted in accordance with the provisions of these bid instructions and specifications. Any alteration, omission, addition, variance, or limitation of, from, or to a bid may be sufficient grounds for rejection of the bid. The City reserves the right to waive any defects in a bid if the City chooses to do so.
The City may not accept a bid if:
A. Any of the bid forms are left blank or are materially altered;
B. Any document or item necessary for the proper evaluation of the bid is incomplete, improperly executed, indefinite, ambiguous, or missing.
1.10 CONDITIONS TO BE ACCEPTED IF ANY WORK IS SUBCONTRACTED A. The bidder assumes full responsibility, including insurance and bonding requirements, for the quality and quantity of all work performed.
EXHIBIT 1
CITY OF STOCKTON
INVITATION FOR SEALED BIDS
8 B. If bidder's supplier(s) and/or subcontractor's involvement requires the use of a licensed, patented, or proprietary process, the vendor of the process is responsible for assuring that the subcontractor, supplier, and/or operator have been properly authorized to use the process or for providing another process which is comparable to that which is required prior to submission of a bid.
1.11 LICENSING REQUIREMENTS
Any professional certifications or licenses required will be the sole cost and responsibility of the successful bidder.
Bidders must possess any applicable special licensing requirements to perform the work specified in these documents.
A City of Stockton Business license is required for this project and must be on file at the time the final contract is executed . Please contact the City of Stockton Business License Division at (209) 937-8313, or www.stocktonca.gov for forms.
1.12 INSURANCE REQUIREMENTS
Bidder, at Bidder's sole cost and expense and for the full term of the resultant contract or any extension thereof, shall obtain and maintain at least all of the insurance requirements listed in attached Exhibit 1 (or Exhibit B of the sample contract).
All coverage shall be provided by a carrier authorized to transact business in California and shall be primary. All policies, endorsements, and certificates shall be subject to approval by the City of Stockton’s Risk Manager to form and content.
These requirements are subject to an amendment or waiver , provided that such approval is given in writing by the Risk Manager.
Maintenance of proper insurance coverage is a material element of this contract, and failure to maintain or renew coverage or to provide evidence of renewal may be treated as a material breach of contract.
The Bidder shall assert that these insurance requirements will be met as part of their proposal response. Failure to comply with these insurance requirements may result in a proposal being deemed unresponsive . Bidder shall satisfy these insurance requirements concurrently with the signing of the contract, prior to the commencement of work. It is strongly suggested that insurance requirements be reviewed with Bidder’s broker to ensure any additional costs are included in the proposal pricing component.
Any questions pertaining to insurance requirements, please contact City of Stockton Risk Services at (209) 937-5037.
EXHIBIT 1
CITY OF STOCKTON
INVITATION FOR SEALED BIDS
9 1.13 HOLD HARMLESS
To the fullest extent permitted by law, Contractor shall hold harmless, defend and indemnify City of Stockton and its officers, officials, employees and volunteers from and against any and all liability, loss, damage, expense, costs (including without limitation costs and fees of litigation) of every nature arising out of or in connection with Contractor’s performance of work hereunder or its failure to comply with any of its obligations contained in the agreement, except such loss or damage which was caused by the sole negligence or willful misconduct of the City of Stockton. This obligation is independent of, and shall not in any way be limited by, the minimum Insurance obligations contained in this agreement.
These obligations shall survive the completion or termination of this agreement.
1.14 APPLICABLE LAW
Applicable law shall be governed by the laws of the State of California. Venue shall be proper in the Superior Court of the State of California, County of San Joaquin, Stockton Branch, or, for actions brought in Federal Court, the United States District Court for the Eastern District of California, Sacramento Division.
Deliverables must conform to all applicable federal, state, and local laws. Such conformity includes compliance with federal sanctions, and Contractor certifies that it has not and will not engage in prohibited transactions with sanctioned persons or entities.
1.15 METHOD OF PAYMENT
Payment will be made within thirty (30) days after invoices are received and accepted by the City. Invoices are to be rendered monthly.
1.16 NOTICE TO OUT-OF-STATE VENDOR
The City of Stockton will pay all applicable sales/use tax directly to the State of California for this purchase.
It is the policy of the City of Stockton to pay all applicable California sales/use tax directly to the State Board of Equalization (BOE) pursuant to California Revenue and Taxation Code 7051.3. The City of Stockton will self -accrue all sales/use tax on purchases made from out-of-state vendors.
Sales and use tax on purchases made by the City of Stockton from all companies located outside California and whose products are shipped from out of state will be remitted to the BOE directly by the City under permit number SR KHE 28 - 051174 DP . Please do not include sales/use tax on the invoice that you submit to the City of Stockton.
Questions regarding the City of Stockton’s payment of sales/use tax can be directed to the City of Stockton’s Procurement Division at (209) 937-8357.
EXHIBIT 1
CITY OF STOCKTON
INVITATION FOR SEALED BIDS
10 1.17 TERM
The City plans to establish a five (5) year contract.
1.18 COMPETITIVE PRICING
Bidder warrants and agrees that each of the charges, economic or product terms or warranties granted pursuant to this Contract are comparable to or better than the equivalent charge, economic or product term or warranty being offered to any similarly situated commercial or other government customer of bidder. If bidder enters into any arrangements with another customer of bidder to provide product under more favorable charges, economic or product terms or warranties, bidder shall immediately notify the CITY of such change , and this Contract shall be deemed amended to incorporate the most favorable charges, economic or product terms or warranties.
1.19 FUNDING
Any contract which results from this bid will terminate without penalty at the end of the fiscal year in the event funds are not appropriated for the next fiscal year. If funds are appropriated for a portion of the fiscal year, this contract will terminate without penalty at the end of the term for which funds are appropriated.
1.20 UNCONDITIONAL TERMINATION FOR CONVENIENCE
The City may terminate the resultant contract for convenience by providing a sixty (60) calendar day advance notice unless otherwise stated in writing.
1.21 AUDITING OF CHARGES & SERVICES
The City reserves the right to periodically audit all charges and services made by the bidder to the City for services provided under the contract. Upon request, the bidder agrees to furnish the City with necessary information and assistance.
1.22 BID SECURITY
Every bid offered shall be accompanied by an acceptable financial instrument (bidder’s bond, certified or cashier’s check) in favor of and payable at sight to the City of Stockton for an amount not less than 10% or a bidder's bond executed by a surety authorized by the Insurance Commissioner to transact business of insurance in the State of California, made out in favor of the CITY OF STOCKTON for an amount not less than 10% and no bid shall be considered unless accompanied by such certified or cashier’s check or bidder's bond.
If bidder elects to accompany their bid with a bidder's bond, then said bond shall state on its face that, "in the event the person, firm, or corporation is awarded the contract and the said bidder shall fail, neglect, or refuse to enter into a contract to said equipment or materials, then the amount therein mentioned in the bidder's bond accompanying the bid of said person, firm, or corporation shall be declared to be forfeited to the City."
EXHIBIT 1
CITY OF STOCKTON
INVITATION FOR SEALED BIDS
11 In the event that the person, firm, or corporation to whom said contract may be awarded fails, neglects, or refuses to enter into contract to furnish said equipment, materials or services, as hereinbefore provided within thirty (30) days of award, then the cashier's check, or certified check and the amount therein mentioned, accompanying the bid of said person, firm, or corporation, shall be declared to be forfeited to said City; or, if non-complying bidder has accompanied their bid with a bidder's bond, ap propriate legal action to collect the bidder's bond, shall be undertaken.
Please note that the City will NOT accept company or personal checks for bid security.
1.23 CONTRACT BONDS
The successful bidder will be required to furnish the City of Stockton with a Faithful Performance Bond in the amount of $0.00 or % and shall be furnished concurrently with the signing of the contract.
The surety that provides the bond(s) must be authorized by the Insurance Commissioner to transact business of insurance in the State of California.
Said bonds shall be executed by the surety and contractor concurrently with the signing of the contract. The form of said bonds must be approved by the appropriate City departments.
All alterations, extension of time, extra and additional work, and other changes authorized by these specifications or any part of the contract shall be made without securing the consent of the surety or sureties on the contract bonds.
1.24 AWARD
Upon conclusion of the bid process, a contract may be awarded for PUR 26-019
POLYMER FOR WASTEWATER TREATMENT AT THE TERTIARY
TREATMENT FACILITY for the City of Stockton.
The City reserves the right to make an award on any item, quantity of any item, group of items, or in the aggregate to that/those bidder(s) whose bid(s) is/are most responsive to the needs of the City. Further, the City reserves the right to reject any and all bids, or alternate bids, or waive any informality in the bid as is in the City's best interest.
Bids will be compared, and a contract will be awarded to the lowest, responsive, and responsible bidder.
The polymer evaluation formula for DAFT consists of the following:
Polymer Dosing Cost Factor (PDCF):
(25 MGD)*(8.34)*(X)*(P) =
TOTAL ANNUAL POLYMER COST
(PDCF)*365 =
EXHIBIT 1
CITY OF STOCKTON
INVITATION FOR SEALED BIDS
12 Where X = Polymer Dosage, mg/L
P = Polymer Price per Bid $/LB
1.25 CHANGES
The City’s Representative has the authority to review and recommend or reject change orders and cost proposals submitted by the bidder or as recommended by the bidder’s project manager, pursuant to the adopted City of Stockton Standard Specifications.
1.26 OTHER GOVERNMENTAL AGENCIES
If mutually agreeable to all parties, the use of any resultant contract/purchase order may be extended to other political subdivisions, municipalities, or tax -supported agencies.
Such participating governmental bodies shall make purchases in their own name, make payment directly to successful bidder and be liable directly to the successful bidder, holding the City of Stockton harmless.
1.27 LIQUIDATED DAMAGES
There are no liquidated damages associated with this work.
1.28 PRODUCT OWNERSHIP
Any documents, products , or systems resulting from the contract will be the property of the City of Stockton.
1.29 CONFIDENTIALITY
If bidder believes that portions of a bid constitute trade secrets or confidential commercial, financial, geological, or geophysical data, then the bidder must so specify by, at a minimum, stamping in bold red letters the term "CONFIDENTIAL" on that part of the bid which the bidder believes to be protected from disclosure.
The bidder must submit, in writing, specific detailed reasons, including any relevant legal authority, stating why the bidder believes the material to be confidential or a trade secret. Vague and general claims as to confidentiality will not be accepted.
The City will be the sole judge as to whether a claim is general and/or vague in nature. All offers and parts of offers that are not marked as confidential may be automatically considered public information after the contract is awarded. The bidder is hereby notified that the City may consider all or parts of the offer public information under applicable law, even if marked confidential.
1.30 PRETESTING AND APPROVAL
A MANDATORY bench testing will be held during the week of January 1 9, 2026 at 2500 Navy Drive, Stockton CA, 95206. Please Contact Phil McKinney at (209) 937-8736 to arrange testing at the Regional Wastewater control Facility in accordance with the specifications by Thursday, January 8, 2026, 2:00 p.m. (PST).
Failure to attend will result in your bid being rejected . ONLY BIDDERS WHO SUCCESSFULLY COMPLETE THE TEST WILL BE PERMITTED TO BID.
EXHIBIT 1
CITY OF STOCKTON
INVITATION FOR SEALED BIDS
13 SAMPLES ARE TO BE PROVIDED AT NO COST TO THE CITY.
1.31 PREVAILING WAGES & CONTRACTOR/SUBCONTRACTOR REGISTRATION REQUIREMENTS(Not Applicable)
Prevailing wage rates are required for this project , as mandated by State and Federal Labor laws. Prevailing wage rates can be found by logging on to http://www.dir.ca.gov/dlsr/DPreWageDetermination.htm.
Pursuant to Labor Code Section 1771.1(a): A Contractor or subcontractor shall not be qualified to bid on, be listed in a bid proposal, subject to the requirements of Section 4104 of the Public Contract Code, or engage in the performance of any contract for public work, as defined in this chapter, unless currently registered and qualified to perform public work pursuant to Labor Code Section 1725.5. It is not a violation of this section for an unregistered Contractor to submit a bid that is authorized by Section 7029.1 of the Business and Professions Code or by Section 10164 or 20103.5 of the Public Contract Code, provided the Contractor is registered to perform public work pursuant to Section 1725.5 at the time the contract is awarded.
No contractor or subcontractor may be listed on a bid proposal for a public works project (submitted on or after March 1, 2015) unless registered with the Department of Industrial Relations pursuant to Labor Code section 1725.5 [with limited exceptions from this requirement for bid purposes only under Labor Code section 1771.1(a)].
No contractor or subcontractor may be awarded a contract for public work on a public works project (awarded on or after April 1, 2015) unless registered with the Department of Industrial Relations pursuant to Labor Code Section 1725.5.
Department of Industrial Relations - Contractor Registration information and web link: http://www.dir.ca.gov/Public-Works/PublicWorks.html
In compliance with Senate Bill 854 and the California Labor Code, all Bidders shall include with their Bid proof of registration from the Department of Industrial Relations (DIR) that includes the contractor’s Legal Name, Registration Number, License Type/Number, Registration Date, and Expiration Date, for every contractor and subcontractor, regardless of tier.
This project is subject to compliance monitoring and enforcement by the Department of Industrial Relations. Contractors must submit their certified payroll records directly to the Division of Labor Standards Enforcement Compliance Monitoring Unit, as well as the City of Stockton.
1.32 CONTRACTOR’S SAFETY RESPONSIBILITY
The scope of work for this project has been reviewed for special risks or hidden dangers that may be present to employees of the bidder or any subcontractor. The bidder is required to identify, notify employees, and implement special precautions EXHIBIT 1
CITY OF STOCKTON
INVITATION FOR SEALED BIDS
14 to prevent injuries to employees. Additionally, the bidder is required to identify its skill, experience, and equipment in dealing with the types of risk to employees.
1.33 PROTEST POLICY
Protest and Appeal Procedures. In order to maintain fairness and impartiality, the City of Stockton has established a solicitation protest policy and procedure.
PROTEST PROCEDURE
A. All protests must be in writing and stated as a formal protest.
B. The protest must contain a complete statement of the basis for the protest and must include all relevant supporting documentation.
C. The solicitation process and procedures, including evaluation criteria, shall not be proper grounds for protest. Concerns related to the solicitation process and procedures, including evaluation criteria, should be raised and addressed, if at all, prior to the bid/proposal due date and time to allow adjustments before evaluation of the solicitation. The party challenging the award decision to bear the burden of proof of material error to justify invalidation of the proposed award.
D. Protests must be filed with the City's Chief Financial Officer, or designee, not later than five (5) days after the date the City mails and or posts on the City’s Bid Flash platform, the Letter of Intent to Award.
E. Deliveries of the protest by hand, mail, or email are acceptable.
F. The City is not responsible for lost or misplaced protests, or to assure the protest is received within the protest deadlines.
PROTEST REVIEW
A. The Chief Financial Officer or designee shall respond in writing to material issues raised in the protest within thirty (30) days of receipt of the protest letter.
B. The Chief Financial Officer's, or designee's, administrative decision may be appealed in writing to the City Manager no later than (5) business days after the date the Chief Financial Officer's, or designee's, decision has been made.
C. The City Manager shall review and decide the appeal based on the grounds and documentation set forth in the original protest to the Chief Financial Officer, or designee.
D. Each party shall bear its own costs and expenses involved in the protest and appeal process, including any subsequent litigation.
E. The City Manager's administrative decision is final. After the City Manager issues the final administrative decision, the time in which judicial review of the decision must be sought shall be governed by California Code of Civil Procedure Section 1094 or a s such section may be amended from time to time.
F. If the protested procurement involves state or federal funds, the Chief Financial Officer, or designee, shall give notice to the interested party that he or she has the right to appeal to the appropriate agency, EXHIBIT 1
CITY OF STOCKTON
INVITATION FOR SEALED BIDS
15 which shall be identified by name and address. An appeal hereunder shall be filed with the appropriate agency within five (5) working days of the dispatch of rejection notices to the interested party(ies).
G. The City may require the protesting party to submit a City Council approved non-refundable protest fee to cover the administrative cost of processing the protest.
2.0 BACKGROUND/GENERAL NATURE OF SPECIFICATION
The City of Stockton is a Charter City incorporated in 1850. The City is the county seat of San Joaquin County and is located in California’s San Joaquin Valley, 78 miles east of the San Francisco Bay Area, 337 miles north of Los Angeles and 40 miles south of Sacramento. The Cou nty is bound by Sacramento County to the north and Stanislaus County to the south. Approximately 310,000 residents live in Stockton.
The Stockton Municipal Utilities Department (MUD) manages, operates, and maintains the Stockton Regional Wastewater Control Facility (RWCF).The RWCF, located at 2500 Navy Drive, is a tertiary wastewater treatment plant that includes primary and secondary treatment.
2.1 SCOPE OF SERVICES
The City of Stockton is seeking competitive bids from qualified vendors interested in a multi -year contract to provide the City with Polymer for their Dissolved Air Flotation Thickeners (DAFTs) at the Tertiary Treatment Facility.
This is a multi-step Invitation to Bid which includes both bench and performance testing of vendor products to determine their ability to meet City’s specifications.
Interested vendors must submit products for performance testing at the City’s Regional Wastewater Control Facility. Only the vendors whose products have been performance tested and meet the City’s specifications will be invited to submit bids.
A. DELIVERY
The price quoted shall include all shipping, delivery, and unloading charges. All taxes, tariffs, and excise fees (except sales tax) are to be included in the unit cost.
TERTIARY TREATMENT FACILITY
3307 HIGHWAY 4 at JOHN TURK ROAD
STOCKTON, CA
WASTEWATER TREATMENT PLANT
2500 NAVY DRIVE
STOCKTON, CA
EXHIBIT 1
CITY OF STOCKTON
INVITATION FOR SEALED BIDS
16 All deliveries may not be limited to these sites. It will be the responsibility of the bidder to provide adequate assistance and/or equipment necessary to load and unload their products at the delivery site. No fee or additional charge will be accepted for split loads or multiple deliveries. Deliveries of chemicals shall be made within one week (5 business days) of notification (excluding weekends and holidays) of the time of order. However, in cases of critical need, shorter delivery times, including possible weekend and holiday deliveries may be required.
Delivery is to be between the hours of 7:00 a.m. and 3:00 p.m., Monday through Friday. The vendor with the particular plant destination shall pre-arrange any variance from these days and hours.
Polymers shall be clean and free of foreign substances. A certificate of analysis shall be provided for each delivery. The chosen polymer shall have no apparent separation within 30 days of delivery to the City. Separation of polymer in storage containers during the full-scale test may result in the rejection of that polymer.
B. BENCH TESTING
Contact Phil McKinney at (209) 937-8736 to arrange testing at the Regional Wastewater Control Facility in accordance to the specifications by 2:00 p.m., on Thursday, January 8, 2026. Bidders will be notified of their test results.
ONLY BIDDERS WHO SUCCESSFULLY COMPLETE THE TEST WILL BE PERMITTED TO BID. SAMPLES ARE TO BE PROVIDED AT NO COST TO THE CITY.
C. INSPECTION AND ACCEPTANCE AT DESTINATION
Final inspection and acceptance shall be at the destination. Although source inspection by the City is not anticipated, the City reserves the right to conduct such inspection as it deems appropriate.
D. ESTIMATED ANNUAL REQUIREMENTS (NO GUARANTEE)
The Vendor agrees to furnish all quantities ordered by the City during the contract period. The City agrees to place orders with the Vendor for all its requirements for those items awarded except as follows:
a. Quantities of items needed under conditions of emergency or public exigency if unable to arrange delivery from contracted Vendor.
b. Quantities of items where Federal funds are involved and other actions are warranted for Federal regulatory compliance purposes.
E. GUARANTEE
By submitting a bid, bidder guarantees that the polymer they propose to furnish shall be of the highest quality and shall meet the intent of the specifications free from defects in material and workmanship. The City shall have the right to reject EXHIBIT 1
CITY OF STOCKTON
INVITATION FOR SEALED BIDS
17 any product which does not conform to such guarantee, and return same, at Vendors’ expense, for correction or replacement
F. SAFETY STANDARDS
Unless otherwise stipulated in the bid, all manufactured items or fabricated assemblies shall comply with applicable requirements of Occupational Safety and Health Act and any standards thereunder.
If any of the ingredients of the product bid is a Carcinogen as shown on the most current list prepared by the International Agency for Research on Cancer (IARC), bidder shall separately identify such ingredients as a Carcinogen. Bidder is advised that the product will not be accepted unless: (1) the product may be used safely, and (2) no acceptable Non-Carcinogen Substitute is available.
The polymer shall not create any problem with reuse options for the Bio-Solids Wet Cake nor pose any health threats to operations personnel. Use of Polymer shall not cause excessive concentrate foaming or result in scale formation in Polymer Distribution Lines. In addition, by the vendor, the appropriate scale inhibitor may be required at no cost to the City.
G. STORAGE CONDITION
Unless otherwise stipulated in the bid, all manufactured items or fabricated assemblies shall comply with applicable requirements of Occupational Safety and Health Act and any standards thereunder.
H. SAMPLES OR SPECIMENS
The supplier shall prepare test specimens of such materials to be furnished as the City may require. Each bidder shall submit, with their bid, a complete set of specifications describing the equipment or material which they propose to furnish. Samples of items, when called for, must be furnished free of expense.
Each individual sample must be labeled with the Vendor’s name, manufacturer’s brand name and number, contact number, and item reference.
I. CONFORMANCE TO SPECIFICATIONS
All materials must be of the specified quality and equal to the approved sample, if samples have been required. It shall be the duty of the supplier to call attention to apparent errors or omissions in the specifications and request instructions before proceeding. The City may, by appropriate instructions, correct errors and supply omissions, which instructions shall be as binding upon the supplier as though contained in the original specifications. All materials furnished must be satisfactory to the City. Material not in accordance with these specifications, in the opinion of the City, shall be made to conform thereto. Unsatisfactory material will be rejected by the City.
EXHIBIT 1
CITY OF STOCKTON
INVITATION FOR SEALED BIDS
18 J. SUBSTITUTIONS
Unless qualified by the provision “NO SUBSTITUTIONS,” any manufacturers’ names, trade name, brand names, information, and/or catalogue numbers listed in a specification are for information and not intended to limit competition. The Vendor may offer any brand for which they are the authorized representative, which meets or exceeds the specifications for any item(s). If the bid is based on equivalent products, indicate on the bid form the manufacturer’s name and number. Vendor shall submit with their bid, sketches, descriptive literature, and complete specifications. Reference to literature submitted with a previous bid will not satisfy this provision. The Vendor shall also explain in detail the reason(s) why the proposed equivalent will meet the specifications and not be considered an exception thereto. Bids that do not comply with these are subject to rejection.
K. DAMAGES
Until material has been furnished in accordance with these specifications, all loss or damage arising from any unforeseen obstruction or difficulties, either natural or artificial, which may be encountered, or from any action of the elements, or from any act or omission not authorized by these specifications on the part of the supplier or any agent or person employed by them, shall be sustained by the supplier.
L. REMOVAL AND REPLACEMENT OF DEFECTIVE MATERIALS
The supplier shall remove and replace, at their expense, any part of the material that has been improperly provided. If they refuse or neglect to replace such defective material, it may be replaced by the City at the expense of the supplier.
M. ADJUSTMENT IN CONTRACT PRICES
If, during the term of this contract, the supplier‘s posted or advertised price for any item fall below the bid price, the City may receive a reduction in the contract price to match the lower posted or advertised price.
Manufacturers’ price increases or other increases in the cost of doing business shall not be passed on to the City unless expressly specified in the Bid. The Vendor may not withdraw from or cancel the contract, in whole or in part, for these reasons.
Vendors may cancel the contract only if a vendor cancellation clause is included as a part of the Bid and only after the vendor has fulfilled its contractual obligations in accordance with the terms stated in the Bid.
EXHIBIT 1
CITY OF STOCKTON
INVITATION FOR SEALED BIDS
19 Any price decrease resulting from market changes during the contract term shall be passed on to the City. No price increases shall be permitted during the first year of the contract.
N. SUCCESSORS AND ASSIGNS
City of Stockton and supplier each bind themselves, their partners, successors, assigns, and legal representatives to this agreement without the written consent of the others. Supplier shall not assign or transfer any interest in this agreement without prior written consent of the City. Consent to any such transfer shall be at the sole discretion of the City of Stockton.
O. SAFETY DATA SHEETS
Safety data sheets shall be furnished by the successful bidder and shall be included with each delivery. Additionally, the successful bidder shall furnish safety data sheets to the Program Manager III – Wastewater within 14 days of any updates.
P. INVOICES
The following information must be provided on the invoice for each delivered shipment.
1. Order date, time, and person placing the order.
2. Delivery date and time.
3. Liquid pounds of Polymer delivered.
4. Total solids concentration of Polymer delivered.
5. Dry pounds of Polymer delivered.
6. Price of Polymer.
7. Total charge for Polymer delivery.
8. Contract Number.
Q. POLICY STATEMENT
Each bidder is required to state their policy regarding demurrage, if any.
2.2 SPECIFICATIONS
Any exceptions to the specifications must be noted. Details concerning the exceptions must be clearly explained. The following is a list of the minimum specifications. Bidder to note compliance or deviation on a separate sheet attached to the bid form.
A. GENERAL
The polymer pre-qualification bench test screening will be conducted as shown below. Vendors are to contact Phil McKinney at (209) 937-8736 on or before EXHIBIT 1
CITY OF STOCKTON
INVITATION FOR SEALED BIDS
20 January 8, 2026, to schedule a test session. Bench testing will be held January 19, 2026, through January 22, 2026. There will be a maximum of two (2) test sessions scheduled per day, Monday through Thursday. The morning session will begin at 8:00 AM and end at 12:00 PM. The second session will begin at 1:00 PM and end at 5:00 PM.
No jar test samples will be allowed to be drawn prior to Vendors scheduled day of polymer bench test screening. Vendors will be allotted a four-hour block of time to complete all jar work and testing. The polymer bench test will be completed on the primary influent composite sample collected that morning.
Vendors are expected to attend their scheduled session and be completely prepared to begin and end at their scheduled time. Test sessions may be suspended at City discretion if Vendors are not prepared to start on time or are exceeding their time allowed.
At least one week prior to pre-qualification testing, the Vendor must provide the City insurance requirements as outlined in Exhibit B Insurance Requirements, the Safety Data Sheet, and Product Bulletin for each proposed polymer. The Product Bulletin shall include the total solids and viscosity of the material. A Certificate of Analysis to include percent aluminum as AL2O3, percent polymer, pH, and specific gravity shall be provided along with the Technical Product Bulletin.
Polymers supplied shall be clean and free of foreign substances. Vendors must provide a certificate of analysis for each delivery of product. Product must be a homogeneous mixture free from any stratification and have a guaranteed shelf life for performance and stability for six (6) months.
Vendors will be expected to provide their own equipment if specialized equipment is needed for administering the polymer during jar or full-scale testing.
B. POLYMER BENCH TEST SCREENING
Vendor to supply all necessary equipment to make down polymer solutions and perform jar tests. The City will supply five to ten (5-10) gallons of DAFT feed sample. Vendors will be allowed to pre-qualify and select one polymer product only for full-scale testing.
C. FULL-SCALE PERFORMANCE TESTING
DAFT testing to be conducted February 2nd through February 5th, 2026.
Each Vendor will be allowed to conduct a full-scale trial of one (1) pre-qualified product. If Vendors have more than one product pre-qualified, they decide which product they will submit for the full-scale test. Bidders will be allowed a maximum of eight (8) hours to complete testing. The bidder shall provide a EXHIBIT 1
CITY OF STOCKTON
INVITATION FOR SEALED BIDS
21 polymer identical to the product pre-qualified from the bench test at no cost to the City in quantities sufficient to complete the performance testing.
The neat polymer delivered by the bidder must not contain solidified masses of polymer and must be 100 percent in solution when mixed, by means of the City's polymer solution batch mixing procedure. Polymer not meeting this specification can cause clogging in the City's polymer feed system and will automatically be rejected by the City. The trial polymer will be batched to a concentration selected by the bidder. Mixed polymer will be fed to two Dissolved Air Flotation Thickeners.
The Vendor shall provide an optimum polymer dose at a constant flow rate of approximately 27.5 million gallons per day (MGD) through two (2) DAFTs.
Steady conditions will be achieved and samples will be collected to analyze Dissolved Air Flotation Thickener effluent turbidity, pH, Electrical Conductivity, Total Suspended Solids, Total Organic Carbon, and associated polymer dose.
Each vendor will be given two (2) hours to find their optimal dosage rate on the trial DAFT that meets the performance requirements given below before testing begins.
The minimum polymer performance requirements are:
Dissolved Air Flotation Thickener Effluent
• Maximum Turbidity of 8.0 Nephelometric Turbidity Units (NTU) • pH and Electrical Conductivity (EC) within 5% of the sample prior to polymer application
• TOC removal efficiency results
Filters
• Maximum Average Turbidity of 2.0 Nephelometric Turbidity Units (NTU), not to exceed 5 NTU for > 5% of the time in the 8-hour period (24 minutes) • No observed negative effect to tertiary filter performance • TOC into the Filters
• TOC after the Filters
• Turbidity into the Filters
• Turbidity after the Filters
Test Procedure:
1. The Vendor shall submit one (1) product for trial. The Vendor must deliver enough polymer for eight (8) hours of continuous testing.
2. Prior to each test, City will backwash the filters to ensure the same operating conditions at the start of each test.
3. Immediately before the test begins, the tank level for the neat test polymer will be recorded.
4. City will sample the filter effluent for THMs at the start of each test to ensure known background conditions.
EXHIBIT 1
CITY OF STOCKTON
INVITATION FOR SEALED BIDS
22 5. Once the Vendor is ready, the polymer feed to two (2) Dissolved Air Flotation Thickeners will begin. Then the polymer will be adjusted accordingly to produce the best performance. Vendor will make all necessary adjustments. The Vendor is allowed a maximum of two (2) hours to optimize the dosage before the test begins.
6. Thirty (30) minutes after the trial starts, effluent turbidity, pH, EC, Total Suspended Solids, and TOC grab samples will be taken by City Operators.
7. Thereafter, the City will collect effluent samples every thirty (30) minutes for the duration of the 8-hour trial period. At the end of the 8-hour testing period, the City will grab a sample of the Final Effluent for analysis of Trihalomethanes.
8. Filter run times and head loss will be noted as part of the test. Any negative impacts on the filter run times, blinding of the filters, etc., may be cause for disqualification at the City’s discretion.
9. Immediately after the test ends, the tank level for the neat test polymer will be recorded. Vendors must make every effort to ensure that testing stays within their scheduled session. If the Vendor is unable to complete the testing within their scheduled session, the City may, at their discretion, either schedule another test session or disallow any further testing. Should an unforeseen situation occur that is the responsibility of the City (i.e., City-owned equipment failure, etc.), the City will allow the Vendor to reschedule a session.
10. Polymer trial information, and any discrepancies noted by either party, will be recorded and signed by the Vendor and the City representative.
The City Laboratory may conduct an analysis on total polymer active substances.
Testing will be conducted in accordance with Standard Methods for Examination of Water and Wastewater, 21st Edition, Method 2540G (total, fixed, and volatile solids in solid and semi-solid samples). The City will provide all analyses in support of the polymer study. All data will be generated following Standard Methods in an ELAP-certified lab. Vendors shall utilize the data provided to them by the City, to assist them in completing their bid proposal.
Vendors shall have their polymer containers removed within five (5) days after their trial. Vendor’s equipment shall be removed by the end of the day of completion of their trial. Any containers or equipment that are not removed within the timeframe specified will be removed by the City and the Vendor billed for the expense.
D. POLYMER EVALUATION
Dosing points in the sample set which meet established maximum turbidity would be considered a qualifying point. The following polymer evaluation formula will be utilized to assist in determining the award of bid. The polymer dosage which results in the lowest overall cost and minimizes Trihalomethane formation will be used for bid evaluation purposes.
The polymer evaluation formula for dewatering consists of the following:
EXHIBIT 1
CITY OF STOCKTON
INVITATION FOR SEALED BIDS
23 Polymer Dosing Cost Factor (PDCF):
(251 MGD)*(8.34)*(X)*(P) =
Percent Removal of TOC at DAFT =
Final Effluent Trihalomethanes =
Percent Removal of TOC at Filters =
Percent Removal of TSS at Filters =
Average Turbidity DAFT Effluent =
TOTAL ANNUAL POLYMER COST
(PDCF)*365 =
Where X = Polymer Dosage, mg/L
P = Polymer Price per Bid $/LB
125 MGD is an estimated effluent flow for cost estimating only. Actual flow will vary and volumes purchased will reflect actual need
EXHIBIT 1
POLYMER FOR WASTEWATER TREATMENT AT TERTIARY FACILITY
PUR 26-019
THURSDAY, FEBRUARY 26, 2026
24 3.0 BIDDER'S CHECKLIST
THIS CHECKLIST IS PROVIDED FOR YOUR CONVENIENCE ONLY. THIS FORM IS NOT REQUIRED TO BE SUBMITTED WITH THE BID.
Complete the following bid documents (FROM THIS PACKET ONLY SUBMIT PAGES 25 to 30, along with any illustrations/brochures):
1. Bid Documents Cover Page*
2. Cost Table for Products and Services (Recheck your math on each item extension and total column. Do not superimpose numerals on your bid forms. If erasures or interlineations appear on your bid form, they must be initialed by the person preparing the bid.) *
3. Bidders Agreement*
4. Non-Collusion Affidavit - Sign and notarize by jurat certificate the “Non-Collusion Affidavit” form. An “All-Purpose Acknowledgment” form will not be sufficient.
5. Sub-Contractor List*
6. Include your 10% bidder's security, bidder's bond, certified or cashier's check. *
NOTE: For your information, the City will NOT accept company or personal checks for bid security.
7. Any Addendum Acknowledgements. Print and sign all Addendums on the City’s website at www.stocktonca.gov/mudbid listed under the PUR 26-019 and submit with Bid response. *
Email bid to City Clerk's Office at [email protected], or deliver bid on a USB drive to City Hall, City Clerk's Office (1st floor), 425 North El Dorado Street, Stockton, CA 95202, before 2:00 PM on THURSDAY, FEBRUARY 26, 2026. Bid shall be marked "Bid" and indicate POLYMER FOR WASTEWATER TREATMENT AT THE TERTIARY TREATMENT FACILITY , PUR 26-019.
CONTACT INFORMATION:
Information on Bid Process/Clarification/Technical Data Rajvir Sahota, Procurement Specialist I
(209) 937-8357
e-mail: [email protected]
*If not completed as required, your bid may be voided.
*DISCLAIMER: The City does not assume any liability or responsibility for errors/omissions in any document transmitted electronically.
*THIS FORM IS FOR YOUR INFORMATION ONLY AND DOES NOT NEED TO BE SUBMITTED WITH YOUR BID.
EXHIBIT 1
POLYMER FOR WASTEWATER TREATMENT AT TERTIARY FACILITY
PUR 26-019
THURSDAY, FEBRUARY 26, 2026
25 BID DOCUMENTS
COMPANY NAME: _________________________________
CONTACT NAME: _________________________________
ADDRESS: _______________________________________
_____________________________________________
TELEPHONE NUMBER: ____________________________
EMAIL: __________________________________________
EXHIBIT 1
26 COST TABLE - BID TO BE SUBMITTED
The bidder hereby agrees to furnish the materials listed below in accordance with the specifications and the foregoing Special Instructions for the amount quoted. Quantities stated herein are approximate - increases or decreases shall depend on City of Stockton requirements and are subject to City fiscal year appropriations.
Brand Name Quoted: ________________________________________________
Price per pound (Wet Weight): ______________________________________ $/LB
FOB Destination; Price to include De-scaling Agent, if required
Dosage: _________________________
Total Annual Cost Bid Amount (including 9% sales tax)
$____________________
PRICE ADJUSTMENTS
Annual increase not to exceed 3% for each succeeding year. In the event that the supplier increases the base price in succeeding years, the supplier shall provide evidence that they have experienced a cost increase and by what amount costs have increased.
This contract shall be awarded to one supplier on the basis of the above total bid after the appropriate price adjustment costs have been applied over the term of this contract.
Any questions regarding bench or performance testing should be directed to Phil McKinney, Municipal Utilities Department, at telephone (209) 937-8736.
FIRM ADDRESS
SIGNED BY TITLE OR AGENCY
( )
DATE TELEPHONE
NOTE: Bidders are to mark their sealed bids to clearly indicate the content as:
A) POLYMER FOR WASTEWATER TREATMENT AT MAIN PLANT
B) PUR 26-019
C) February 26, 2026
IF YOU DO NOT WISH TO BID, PLEASE RETURN YOUR BID IMMEDIATELY, STATING THE REASON.
EXHIBIT 1
27 BIDDER’S AGREEMENT
In submitting this bid, as herein described, the bidder agrees that:
1. They have carefully examined the specifications and all other provisions of this form and understand the meaning, intent, and requirements of the same.
2. They have reviewed and understand all clarifications/questions/answers on the City’s website at www.stocktonca.gov/mudbid.
3. They will enter into a written contract and furnish the item(s)/service(s) in the time specified in strict conformity with the specifications and conditions contained therein for the price quoted by the bidder on this bid.
4. The proposed price is inclusive of all freight and handling charges and includes delivery to the City of Stockton, Municipal Service Center, or, if specified, to the alternate point of delivery shown in the specifications.
5. They have signed and notarized the attached Non-Collusion Affidavit form, whether individual, corporate, or partnership. Must be “A Jurat” notarization.
FIRM ADDRESS
SIGNED BY TITLE OR AGENCY
E-MAIL ADDRESS
NOTE: Bids are invalid that are unsigned or not accompanied by $0.00 bid deposit or a bidder’s bond. If erasures or interlineations appear on your bid form, they must be initialed by the person preparing the bid. Bids shall be emailed or delivered on a USB drive to:
[email protected]
or
City Hall, City Clerk's Office (1st floor),
425 North El Dorado Street,
Stockton, CA 95202
On or before 2:00 p.m. Thursday, February 26, 2026, and publicly opened immediately thereafter in the City Council Chambers.
SPECIAL NOTE: U.P.S. OR OTHER SPECIAL HANDLING SERVICES DO NOT DELIVER DIRECTLY TO THE CITY CLERK’S OFFICE. BIDDERS ARE ADVISED THAT IF A SPECIAL HANDLING SERVICE IS USED, BIDS MAY NOT REACH THE CITY CLERK’S OFFICE IN TIME FOR BID OPENING AND WILL BE REJ ECTED EXHIBIT 1
28 NON-COLLUSION
No. 1 AFFIDAVIT FOR INDIVIDUAL BIDDER
STATE OF CALIFORNIA, )ss.
County of )
(insert)
being first duly sworn, deposes and says: That on behalf of any person not named herein; that said Bidder has not colluded, conspired, connived or agreed, directly or indirectly with, or induced or solicited any other bid or person, firm or corporation to put in a sham bid, or that such other person, firm or corporation shall or should refrain from bidding; and has not in any manner sought by collusion to secure to themselves any advantage over or against the City, or any person i nterested in said improvement, or over any other Bidder.
(Signature Individual Bidder)
Subscribed and sworn to (or affirmed) before me on this day of , 20
by , proved to me on the basis of satisfactory evidence to be the person(s) who appeared before me.
Seal
Signature
No. 2 AFFIDAVIT FOR CORPORATION BIDDER
STATE OF CALIFORNIA, )ss.
County of )
(insert)
being first duly sworn, deposes and says:
That
they are the of a
corporation, which corporation is the party making the foregoing bid, that such bid is genuine and not sham or collusive, or made in the interest or behalf of any person not named herein; that said Bidder has not colluded, conspired, connived or agreed, directly or indirectly with, or induced or solicited any other bid or person, firm or corporation to put in a sham bid, or that such other person, firm or corporation shall or should refrain from bidding; and has not in any manner sought by collusion to secure to themselves any advantage over or against the City, or any person interested in said improvement, or over any other Bidder.
(Signature Corporation Bidder)
Subscribed and sworn to (or affirmed) before me on this day of , 20
by , proved to me on the basis of satisfactory evidence to be the person(s) who appeared before me.
Seal
Signature
EXHIBIT 1
29 No. 3 AFFIDAVIT FOR FIRM, ASSOCIATION, OR CO-PARTNERSHIP
STATE OF CALIFORNIA, )ss.
County of )
(insert)
,
each being first duly sworn, depose and say: That they are a member of the firm, association or co-partnership,
designated as who is the party making the foregoing bid; that the other partner, or partners,
are that such bid is genuine and not sham or
collusive, or made in the interest or behalf of any person not named herein; that said Bidder has not colluded, conspired, co nnived or agreed, directly or indirectly with, or induced or solicited any other bid or person, firm or corporation shall or should refrain from proposing; and has not in any manner sought by collusion to secure to themselves any advantage over or against the City, or any person interested in said improvement, or over any other Bidder.
(Signature)
(Signature)
Subscribed and sworn to (or affirmed) before me on this day of , 20
by , proved to me on the basis of satisfactory evidence to be the person(s) who appeared before me.
Seal
Signature
EXHIBIT 1
30 SUBCONTRACTOR LIST
PUR 26-019
PLEASE LIST BELOW ALL SUBCONTRACTORS CONTRIBUTING TO THIS WORK
Each bidder shall provide the name, business address, license number, description of the work, and the dollar amount to be PAID the subcontractor, for each subcontractor that will be used on the project, if the Bidder is awarded the contract. Only subcontractors with work in excess of one-half of one percent (0.5%) or $10,000 (whichever is greater) of the Bidder's total bid need to be listed. All work in excess of one-half of one percent (0.5%) or $10,000 (whichever is greater) of the Bidder's total bid, for which a subcontractor is not listed on this form, shall be performed by the Bidder's own organization. Additional numbered pages listing proposed subcontractors may be attached to this page. Each page shall be headed "Proposed Subcontractors" and shall be signed by the Bidder.
PRINT LEGIBLY OR TYPE
BUSINESS
NAME/ADDRESS CONTACT
PHONE
NUMBER
LICENSE NUMBER
& LICENSE
CLASSIFICATION TYPE OF WORK AMOUNT
EXHIBIT 1
31 Exhibit 1:
Insurance Requirements
(Chemical DAFT Polymer)
Contractor shall procure and maintain for the duration of the contract insurance against claims for injuries to persons or damage to property which may arise from or in connection with the performance of the work hereunder and the results of that work by the Contractor, his agents, representatives, employees, or subcontractors. With respect to General Liability, Errors & Omissions, Contractors Pollution Liability, and/or Asbestos Pollution Liability, coverage should be maintained for a minimum of five (5) years after contract completion.
MINIMUM SCOPE AND LIMIT OF INSURANCE
Coverage shall be at least as broad as:
1. Commercial General Liability (CGL): Insurance Services Office Form CG 00 01 covering CGL on an “occurrence” basis, including products and completed operations, property damage, bodily injury and personal & advertising injury with limits no less than $2,000,000 per occurrence. If a general aggregate limit applies, either the general aggregate limit shall apply separately to this project/location (ISO CG 25 03 or 25 04) or the general aggregate limit shall be twice the required occurrence limit.
2. Automobile Liability: Insurance Services Office Form Number CA 0001 covering any auto (Code 1), or if Contractor has no owned autos, hired (Code 8) and non-owned (Code 9) autos, with limit no less than $2,000,000 per accident for bodily injury and property damage.
3. Workers’ Compensation insurance as required by the State of California, with Statutory Limits, and Employer’s Liability Insurance with limit of no less than $1,000,000 per accident for bodily injury or disease.
If the contractor maintains broader coverage and/or higher limits than the minimums shown above, the City of Stockton requires and shall be entitled to the broader coverage and/or the higher limits maintained by the contractor. Any available insurance proceeds in excess of the specified minimum limits of insurance and coverage shall be available to the City of Stockton.
Self-Insured Retentions
Self-insured retentions must be declared to and approved by the City of Stockton. The City of Stockton may require the Contractor to purchase coverage with a lower retention or provide proof of ability to pay losses and related investigations, claim administration, and defense expenses within the retention. The policy language shall provide, or be endorsed to provide, that the self-insured retention may be satisfied by either the named insured or City of Stockton. The CGL and any policies, including EXHIBIT 1
32 Excess liability policies, may not be subject to a self-insured retention (SIR) or deductible that exceeds $25,000 unless approved in writing by City of Stockton. Any and all deductibles and SIRs shall be the sole responsibility of Contractor or subcontractor who procured such insurance and shall not apply to the Indemnified Additional Insured Parties. City of Stockton may deduct from any amounts otherwise due Contractor to fund the SIR/deductible. Policies shall NOT contain any self-insured retention (SIR) provision that limits the satisfaction of the SIR to the Named Insured.
The policy must also provide that Defense costs, including the Allocated Loss Adjustment Expenses, will satisfy the SIR or deductible. City of Stockton reserves the right to obtain a copy of any policies and endorsements for verification.
Other Insurance Provisions
A. The General Liability, Automobile Liability, Contractors Pollution Liability, and/or Asbestos Pollution policies are to contain, or be endorsed to contain, the following provisions:
1. The City of Stockton, its officers, officials, employees, and volunteers are to be covered as additional insureds with respect to liability arising out of work or operations performed by or on behalf of the Contractor including materials, parts or equipment furnished in connection with such work or operations. General liability coverage can be provided in the form of an endorsement to the Contractor’s insurance (at least as broad as ISO Form CG 20 10 11 85 or both CG 20 10, CG 20 26, CG 20 33, or CG 20 38; and CG 20 37 forms if later revisions used). Additional insured Name of Organization shall read “City of Stockton, its officers, officials, employees, and volunteers.” Policy shall cover City of Stockton, its officers, officials, employees, and volunteers for all locations work is done under this contract.
2. For any claims related to this project, the Contractor’s insurance coverage shall be primary and non-contributory insurance coverage at least as broad as ISO CG 20 01 04 13 as respects the City of Stockton, its officers, officials, employees, agents, and volunteers. Any insurance or self-insurance maintained by the City of Stockton, its officers, officials, employees, agents, or volunteers shall be excess of the Contractor’s insurance and shall not contribute with it. This requirement shall also apply to any Excess or Umbrella liability policies. The City of Stockton does not accept endorsements limiting the Contractor’s insurance coverage to the sole negligence of the Named Insured.
3. Each insurance policy required above shall provide that coverage shall not be canceled, except with notice to the City of Stockton.
B. The Automobile Liability policy shall be endorsed to include Transportation Pollution Liability insurance, covering materials to be transported by Contractor pursuant to the contract. This coverage may also be provided on the Contractors Pollution Liability policy.
EXHIBIT 1
33 C. If General Liability, Contractors Pollution Liability and/or Asbestos Pollution Liability and/or Errors & Omissions coverages are written on a claims-made form:
1. The retroactive date must be shown and must be before the date of the contract or the beginning of contract work.
2. Insurance must be maintained and evidence of insurance must be provided for at least five (5) years after completion of the contract of work.
3. If coverage is canceled or non-renewed, and not replaced with another claims- made policy form with a retroactive date prior to the contract effective date, the Contractor must purchase an extended period coverage for a minimum of five (5) years after completion of contract work.
4. A copy of the claims reporting requirements must be submitted to the City of Stockton for review.
5. If the services involve lead-based paint or asbestos identification / remediation, the Contractors Pollution Liability shall not contain lead-based paint or asbestos exclusions. If the services involve mold identification / remediation, the Contractors Pollution Liability shall not contain a mold exclusion and the definition of “Pollution” shall include microbial matter including mold.
Umbrella or Excess Policy
The Contractor may use Umbrella or Excess Policies to provide the liability limits as required in this agreement. This form of insurance will be acceptable provided that all of the Primary and Umbrella or Excess Policies shall provide all of the insurance coverages herein required, including, but not limited to, primary and non-contributory, additional insured, Self-Insured Retentions (SIRs), indemnity, and defense requirements. The Umbrella or Excess policies shall be provided on a true “following form” or broader coverage basis, with coverage at least as broad as provided on the underlying Commercial General Liability insurance. No insurance policies maintained by the Additional Insureds, whether primary or excess, and which also apply to a loss covered hereunder, shall be called upon to contribute to a loss until the Contractor’s primary and excess liability policies are exhausted.
Acceptability of Insurers
Insurance is to be placed with insurers authorized to conduct business in the state with a current A.M. Best rating of no less than A:VII if admitted in the State of California.
Verification of Coverage
Contractor shall furnish the City of Stockton with original certificates and amendatory endorsements or copies of the applicable policy language effecting coverage required by this clause and a copy of the Declarations and Endorsements Pages of the CGL and any Excess policies listing all policy endorsements. All certificates and endorsements and copies of the Declarations & Endorsements pages are to be received EXHIBIT 1
34 and approved by the City of Stockton before work commences. However, failure to obtain the required documents prior to the work beginning shall not waive the Contractor’s obligation to provide them. The City of Stockton reserves the right to require complete, certified copies of all required insurance policies, including endorsements required by these specifications, at any time. City of Stockton reserves the right to modify these requirements, including limits, based on the nature of the risk, prior experience, insurer, coverage, or other special circumstances.
Waiver of Subrogation
Contractor hereby grants to City of Stockton a waiver of subrogation which any insurer may acquire against City of Stockton, its officers, officials, employees, and volunteers, from Contractor by virtue of the payment of any loss. Contractor agrees to obtain any endorsement that may be necessary to affect this waiver of subrogation, but this provision applies regardless of whether or not the City of Stockton has received a waiver of subrogation endorsement from the insurer.
The Workers’ Compensation policy shall be endorsed with a waiver of subrogation in favor of the City of Stockton for all work performed by the Contractor, its employees, agents, and subcontractors.
Subcontractors
Contractor shall require and verify that all subcontractors maintain insurance meeting all the requirements stated herein, and Contractor shall ensure that City of Stockton is an additional insured on insurance required from subcontractors. For CGL coverage subcontractors shall provide coverage with a format least as broad as CG 20 38 04 13.
Duration of Coverage
CGL & Excess liability policies for any construction related work, including, but not limited to, maintenance, service, or repair work, shall continue coverage for a minimum of 5 years for Completed Operations liability coverage. Such Insurance must be maintained and evidence of insurance must be provided for at least five (5) years after completion of the contract of work.
Special Risks or Circumstances
City of Stockton reserves the right to modify these requirements, including limits, based on the nature of the risk, prior experience, insurer, coverage, or other special circumstances.
Certificate Holder Address
The address for mailing certificates, endorsements and notices shall be:
City of Stockton
Its Officers, Officials, Employees and Volunteers
425 N El Dorado Street
Stockton, CA 95202
EXHIBIT 1
1 (Version 9.22.21)
INVITATION FOR SEALED BID (IFB)
POLYMER FOR WASTEWATER TREATMENT AT THE TERTIARY
TREATMENT FACILITY
PUR 26-019
ADDENDUM No. 1 DATE: January 28, 2026
To All Potential Bidders:
A. This Addendum shall be considered part of the bid documents for the above-mentioned project as though it had been issued at the same time and shall be incorporated integrally therewith.
Where provisions of the following supplementary data differ from those of the original bid documents, this Amendment shall govern and take precedence. BIDDERS MUST SIGN THE ADDENDUM AND SUBMIT IT WITH THEIR BIDS.
B. Bidders are hereby notified that they shall make any necessary adjustments in their estimates as a result of this Addendum. It will be construed that each bidder’s bid is submitted with full knowledge of all modifications and supplemental data specified herein.
ADDENDUM NUMBER:
1. CHANGES AND CLARIFICATIONS . THE CITY’S RESPONSES TO CHANGES ARE SUBMITTED IN BLUE.
A. The City of Stockton hereby clarifies that Exhibit H - Compliance with Economic Sanctions in Response to Russia’s Actions in Ukraine is removed from Exhibit 2 - Sample Contract . The Exhibit H attachment must be completed and submitted separately with the bid documents.
B. Exhibit 2-Sample Contract has been revised. The revised Exhibit 2 includes updated Terms & Conditions (Exhibit C and D), with Exhibit-H removed.
BIDDER MUST ACKNOWLEDGE THIS ADDENDUM BY SIGNING BELOW AND ATTACHING THE SIGNED ADDENDUM TO THE BID FORM:
Company Name
Contact Person
Signature
Date
Bids Due – Promptly by 2:00 P.M., Thursday, February 26, 2026 at [email protected]
----------------------------------City of Stockton Use Only below this line---------------------------------
Addendum acknowledged and signed? (Procurement Specialist’s initials) EXHIBIT 1
1 (Version 9.22.21)
INVITATION FOR SEALED BID (IFB)
POLYMER FOR WASTEWATER TREATMENT AT THE TERTIARY
TREATMENT FACILITY
FOR THE CITY OF STOCKTON, CALIFORNIA
PUR 26-019
ADDENDUM No.2 DATE: February 19, 2026 To All Potential Bidders:
A. This Addendum shall be considered part of the bid documents for the above-mentioned project as though it had been issued at the same time and shall be incorporated integrally therewith.
Where provisions of the following supplementary data differ from those of the original bid documents, this Amendment shall govern and take precedence. BIDDERS MUST SIGN THE ADDENDUM AND SUBMIT IT WITH THEIR BIDS.
B. Bidders are hereby notified that they shall make any necessary adjustments in their estimates as a result of this Addendum. It will be construed that each bidder’s bid is submitted with full knowledge of all modifications and supplemental data specified herein.
ADDENDUM NUMBER:
1. QUESTIONS AND ANSWERS. THE CITY’S RESPONSES TO QUESTIONS
SUBMITTED ARE IN BLUE
Questions & Answers
1. Who is current supplier of product for the DAFT?
The current contract was awarded at the 5/21/2019 Council meeting and the contract is available as an attachment on the City’s website.
2. What is name of current product(s) currently supplied? The current contract was awarded at the 5/21/2019 Council meeting and the contract is available as an attachment on the City’s website.
3. What are current unit price(s) for product(s) used at the DAFT? The most recent contract amendment was approved at the 5/14/2024 Council meeting and the contract amendment is available as an attachment on the City’s website. Any price adjustments after this date would not exceed 3 percent.
4. What package container is delivered for the product(s)? The product is delivered in bulk by tanker trailer.
5. What is estimated annual dry lbs used for product(s) at the DAFT? The estimated annual lbs used varies between 1.4 to 2.5 million pounds.
6. What is "normal" average product(s) dose for the DAFT for last 90 days? The dose varies depending on algae loads.
EXHIBIT 1
2 (Version 9.22.21)
7. What is "normal" average DAFT effluent turbidities for last 90 days? Below 8 NTU.
8. What is "normal" average DAFT TOC removal for last 90 days? This data is not available. TOC is only measured in the final effluent.
9. What is the price per pound and estimated annual quantity in pounds? The estimated annual quantity is noted in response to question 5. The price per pound is provided in response to question 3.
BIDDER MUST ACKNOWLEDGE THIS ADDENDUM BY SIGNING BELOW AND ATTACHING THE SIGNED ADDENDUM TO THE BID FORM:
Company Name
Contact Person
Signature
Date
Bids Due – Promptly by 2:00 P.M., Thursday, February 26, 2026 at [email protected]
----------------------------------City of Stockton Use Only below this line---------------------------------
Addendum acknowledged and signed? (Procurement Specialist’s initials) EXHIBIT 1