R.M. Levy Water Treatment Plant Filter Rehabilitation Project.pdf

July 2026 TABLE OF CONTENTS

CIP25203

Ver 10.0 12082025

LA MESA, CALIFORNIA

CONTRACT DOCUMENTS AND SPECIFICATIONS FOR

R.M. LEVY WATER TREATMENT PLANT

FILTER REHABILITATION PROJECT

CIP25203

Proposals will be received at

Helix Water District 7811 University Avenue

La Mesa, CA 91942 sam Image

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TABLE OF CONTENTS

Page

00020 – SPECIAL NOTICE TO BIDDERS

00030 – NOTICE INVITING BIDS

00100 – INSTRUCTIONS TO BIDDERS

1-1 SECURING DOCUMENTS

1-2 EXAMINATION OF SITE AND CONTRACT DOCUMENTS

1-3 INTERPRETATION OF DRAWINGS AND DOCUMENTS

1-4 PRE-BID CONFERENCE

1-5 ADDENDA

1-6 ALTERNATE BIDS

1-7 COMPLETION OF BID FORMS

1-8 MODIFICATIONS OF BIDS

1-9 CONTRACTOR’S MINIMUM SELF-PERFORMANCE

1-10 SUBCONTRACTORS

1-11 LICENSING REQUIREMENTS

1-12 BID GUARANTEE (BOND)

1-13 IRAN CONTRACTING ACT OF 2010

1-14 NONCOLLUSION DECLARATION

1-15 PUBLIC WORKS CONTRACTOR REGISTRATION CERTIFICATION

1-16 BIDDER INFORMATION AND EXPERIENCE FORM

1-17 WORKERS’ COMPENSATION CERTIFICATION

1-18 COMPLIANCE WITH CALIFORNIA AIR RESOURCES BOARD REGULATIONS

1-19 SIGNING OF BIDS

1-20 SUBMISSION OF SEALED BIDS

1-21 OPENING OF BIDS

1-22 WITHDRAWAL OF BID

1-23 BIDDERS INTERESTED IN MORE THAN ONE BID

1-24 SUBSTITUTION OF SECURITY

1-25 PREVAILING WAGES

1-26 DEBARMENT OF CONTRACTORS AND SUBCONTRACTORS

1-27 INSURANCE REQUIREMENTS

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1-28 PERFORMANCE BOND AND PAYMENT BOND REQUIREMENTS

1-29 SALES AND OTHER APPLICABLE TAXES, PERMITS, LICENSES AND FEES

1-30 PERMIT AND INSPECTION FEE ALLOWANCE

1-31 FILING OF BID PROTESTS

1-32 BASIS OF AWARD; BALANCED BID

1-33 AWARD PROCESS

1-34 EXECUTION OF CONTRACT

00300 – BID FORM

00310 – BID BOND

00330 – DESIGNATION OF SUBCONTRACTORS

00340 – NONCOLLUSION DECLARATION

00360 – IRAN CONTRACTING ACT CERTIFICATION

00370 – PUBLIC WORKS CONTRACTOR REGISTRATION CERTIFICATION

00380 – CONTRACTOR’S CERTIFICATE REGARDING WORKERS’ COMPENSATION

00390 – FLEET COMPLIANCE CERTIFICATION

00400 – BIDDER INFORMATION AND EXPERIENCE FORM

1-0 RESPONSIBLE BIDDER DETERMINATION

1-1 STATEMENT OF QUALIFICATIONS

1-2 VERIFICATION AND EXECUTION

00500 – CONTRACT

00600 – FAITHFUL PERFORMANCE BOND

00610 – LABOR AND MATERIAL PAYMENT BOND

00700 – GENERAL CONDITIONS

1-0 DEFINITIONS

1-1 CONTRACT DOCUMENTS

1-2 PRECONSTRUCTION AND CONSTRUCTION COMMUNICATION

1-3 CONTRACT DOCUMENTS: COPIES AND MAINTENANCE

1-4 EXAMINATION OF DRAWINGS, SPECIFICATIONS AND SITE OF WORK

1-5 MOBILIZATION/DEMOBILIZATION

1-6 EXISTENCE OF UTILITIES AT THE WORK SITE

1-7 SOILS INVESTIGATIONS

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1-8 CONTRACTOR’S SELF-PERFORMANCE AND SUPERVISION

1-9 WORKERS

1-10 SUBCONTRACTS

1-11 SCHEDULE

1-12 REQUESTS FOR SUBSTITUTION

1-13 SHOP DRAWINGS AND SUBMITTALS

1-14 SUBMITTALS

1-15 MATERIALS

1-16 PERMITS AND LICENSES

1-17 POWER

1-18 CONSTRUCTION WATER

1-19 EXCAVATION

1-20 TRAFFIC CONTROL

1-21 DIVERSION OF RECYCLABLE WASTE MATERIALS

1-22 SANITARY FACILITIES

1-23 AIR POLLUTION CONTROL AND CARB FLEET COMPLIANCE

1-24 COMPLIANCE WITH STORM WATER PERMIT FOR CONSTRUCTION

ACTIVITY

1-25 COMPLIANCE WITH HYDROSTATIC TEST PERMIT FOR DISCHARGE OF

POTABLE WATER

1-26 CLEANING UP

1-27 LAYOUT AND FIELD ENGINEERING

1-28 EXCESSIVE NOISE

1-29 TESTS AND INSPECTIONS

1-30 PROTECTION OF WORK AND PROPERTY

1-31 CONTRACTOR’S MEANS AND METHODS

1-32 AUTHORIZED REPRESENTATIVES

1-33 HOURS OF WORK

1-34 PAYROLL RECORDS

1-35 PREVAILING RATES OF WAGES

1-36 PUBLIC WORKS CONTRACTOR REGISTRATION

1-37 EMPLOYMENT OF APPRENTICES

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1-38 NONDISCRIMINATION/EQUAL EMPLOYMENT OPPORTUNITY

1-39 DEBARMENT OF CONTRACTORS AND SUBCONTRACTORS

1-40 LABOR/EMPLOYMENT SAFETY

1-41 INSURANCE

1-42 TIME FOR COMPLETION AND LIQUIDATED DAMAGES

1-43 TIME AND ORDER OF WORK

1-44 COST BREAKDOWN AND PERIODIC ESTIMATES

1-45 PROGRESS ESTIMATES, PAYMENT AND WITHHOLDING

1-46 SECURITIES FOR MONEY WITHHELD

1-47 CHANGES AND EXTRA WORK

1-48 FINAL ACCEPTANCE AND PAYMENT

1-49 OCCUPANCY

1-50 INDEMNIFICATION

1-51 RECORD (“AS BUILT”) DRAWINGS

1-52 PROCEDURE FOR RESOLVING DISPUTES

1-53 DISTRICT’S RIGHT TO TERMINATE CONTRACT

1-54 WARRANTY AND GUARANTEE OF WORK

1-55 DOCUMENT RETENTION AND EXAMINATION

1-56 SEPARATE CONTRACTS

1-57 NOTICE AND SERVICE THEREOF

1-58 NOTICE OF THIRD-PARTY CLAIMS

1-59 STATE LICENSE BOARD NOTICE

1-60 INTEGRATION

1-61 ASSIGNMENT OF CONTRACT

1-62 ASSIGNMENT OF ANTITRUST ACTIONS

1-63 LAWS AND REGULATIONS

1-64 PATENTS

1-65 OWNERSHIP OF CONTRACT DOCUMENTS

1-66 NOTICE OF TAXABLE POSSESSORY INTEREST

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00800 – SPECIAL CONDITIONS

1-1 ENGINEER OF RECORD

1-2 WORKING DAYS

1-3 WORKING HOURS

1-4 PRE-CONSTRUCTION CONFERENCE

1-5 QUALIFICATION OF SITE SUPERINTENDENT

1-6 PROGRESS MEETINGS

1-7 CONSTRUCTION SEQUENCE

1-8 ESTIMATE OF QUANTITIES

1-9 DOCUMENTATION OF EXISTING CONDITIONS

1-10 UNEXPECTED SUBSURFACE CONDITIONS

1-11 SUBSURFACE DATA

1-12 ROCK

1-13 GROUNDWATER

1-14 CONTAMINATED SOILS

1-15 REMOVAL, RELOCATION AND PROTECTION OF UTILITIES

1-16 COMPACTION TESTS

1-17 PIPELINE SHUTDOWNS AND COORDINATION WITH DISTRICT

1-18 VALVE REPLACEMENT WORK

1-19 USE OF STEEL TRAFFIC PLATES

1-20 SPECIAL PROVISIONS FOR DISINFECTION

1-21 UNANTICIPATED OBSTRUCTIONS

1-22 ADDITIONAL PVC DEFLECTION COUPLINGS

1-23 PERMANENT ABANDONMENT OF EXISTING DISTRICT PIPELINES

1-24 INSTALLATION OF TEMPORARY CAPS TO MAINTAIN SERVICE

1-25 TRENCH EXCAVATION AND BACKFILL

1-26 CONNECTIONS TO EXISTING MAINS

1-27 DISPOSAL OF ASBESTOS-CEMENT PIPE

1-28 SERVICES

1-29 CONCRETE CROSS-GUTTER AND CONCRETE ROADWAY REPLACEMENT

1-30 TEMPORARY PIPING (HIGH LINE)

1-31 SACRIFICIAL ANODES FOR COPPER TUBING

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1-32 TEMPORARY PAVING

1-33 PAVEMENT REPAIR

1-34 ADDITIONAL PAVEMENT REMOVAL AND DISPOSAL

1-35 EASEMENT REQUIREMENTS

1-36 HIGH PRESSURE WATER JETTING OF PIPING

1-37 SITE ACCESS AND STORAGE

EXHIBIT A – PAY APPLICATION FORM

EXHIBIT B1 – CHANGE ORDER FORM

EXHIBIT B2 – EXTRA WORK AUTHORIZATION FORM

EXHIBIT C – CONTRACTOR SAFETY PROFILE

EXHIBIT D – FRINGE BENEFIT STATEMENT

REDUCED PROJECT DRAWINGS – SHEETS 1 THROUGH 19

208731-304292

July 2026

Table of Contents

R.M. Levy Water Treatment Plant Filter Rehabilitation Project, CIP25203 000110 - 1

Helix Water District Issued for Bid

TABLE OF CONTENTS

PROCUREMENT AND CONTRACTING DOCUMENTS GROUP

DIVISION 00 - PROCUREMENT AND CONTRACTING REQUIREMENTS

Helix Water District Contract Documents and Specifications for R. M. Levy Water Treatment Plant Filter

Rehabilitation Project CIP25203

SPECIFICATIONS GROUP

General Requirements Subgroup

DIVISION 01 - GENERAL REQUIREMENTS

011000 Summary

012500 Substitution Procedures

013100 Project Management and Coordination

013200 Construction Progress Documentation

013300 Submittal Procedures

013300A

013300B

013513.24

Submittal Procedures Form F1

Submittal Procedures Form F2

Special Procedures for Maintenance of Plant Operation and Sequence of

Construction

014000 Quality Requirements

015000 Temporary Facilities And Controls

016000 Product Requirements

017300 Execution

017700 Closeout Procedures

017823 Operation and Maintenance Data

017839 Project Record Documents

017900 Demonstration and Training

018819 Tightness Testing Performance Requirements

Facility Construction Subgroup

DIVISION 02 - EXISTING CONDITIONS

024119 Selective Demolition

DIVISION 03 - CONCRETE

030130.71 Modifications To Existing Concrete

036000 Grouting

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Table of Contents

R.M. Levy Water Treatment Plant Filter Rehabilitation Project, CIP25203 000110 - 2

Helix Water District Issued for Bid

DIVISION 05 - METALS

050519 Post-Installed Anchors and Reinforcing Bars

055000 Metal Fabrications

DIVISION 07 - THERMAL AND MOISTURE PROTECTION

079200 Joint Sealants

Site and Infrastructure Subgroup

DIVISION 33 - UTILITIES

331300 Disinfecting of Water Treatment System Components

Process Equipment Subgroup

DIVISION 40 - PROCESS INTERCONNECTIONS

400506 Couplings, Adapters, and Specials for Process Piping

400507 Hangers and Supports for Process Piping

400531 Thermoplastic Process Pipe

400551 Common Requirements for Process Valves

400553 Identification for Process Piping

DIVISION 46 - WATER AND WASTEWATER EQUIPMENT

466113 Filter Media

466123.15 Filter Underdrain System

END OF TABLE OF CONTENTS

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-1- July 2026 00020 – SPECIAL NOTICE TO BIDDERS

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00020 – SPECIAL NOTICE TO BIDDERS

The following items shall be completed in their entirety and submitted by bidders up to but not later than the time and date specified herein for the receipt of bids:

1. BID FORM

2. BID BOND

3. ACKNOWLEDGEMENT OF BID BOND

4. DESIGNATION OF SUBCONTRACTORS

5. NONCOLLUSION DECLARATION

6. IRAN CONTRACTING ACT CERTIFICATION

7. PUBLIC WORKS CONTRACTOR REGISTRATION CERTIFICATION

8. CONTRACTOR’S CERTIFICATE REGARDING WORKERS’ COMPENSATION

9. BIDDER INFORMATION AND EXPERIENCE FORM

-2- July 2026 00030 – NOTICE INVITING BIDS

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00030 – NOTICE INVITING BIDS

NOTICE IS HEREBY GIVEN that the Board of Directors of the Helix Water District (“District”) invites and will receive sealed Bids up to but not later than 10:00 a.m. on Tuesday, September 1, 2026 at the District’s Administration Office, located at 7811 University Avenue, La Mesa, California, for the furnishing to District of all labor, equipment, materials, tools, services, transportation, permits, utilities, and all other items necessary for CONSTRUCTION OF R.M. LEVY WATER TREATMENT PLANT FILTER REHABILITATION PROJECT CIP25203 (the “Project”). Bids received after said time shall be returned unopened. Bids shall be valid for a period of 60 calendar days after the Bid opening date.

The Work consists of demolition of the existing filter underdrain system and installation of a new filter underdrain system including filter media, piping and associated appurtenances, and modifications to ancillary structures including access manways and concrete repairs at the R.M.

Levy Water Treatment Plant site located at 9550 Lake Jennings Park Road, Lakeside, CA 92040.

The Bid Form, Contract, Drawings and Specifications, which more particularly describe all items of work for the Project, are available electronically from Bidnet (California Purchasing Group) at http://www.bidnetdirect.com/california/helixwaterdistrict. The District will not provide paper copies. It is the responsibility of each prospective Bidder to download and print all bid documents for review and to verify the completeness of bid documents before submitting a bid. The District does not assume any liability or responsibility based on any defective or incomplete copying, excerpting, scanning, faxing, downloading or printing of the bid documents. The Contractor shall furnish all labor, equipment, materials, tools, services, transportation, permits, utilities and all other items necessary to complete the Project as described in the Drawings, Specifications and other contract documents, which are available for inspection at Bidnet (California Purchasing Group) at http://www.bidnetdirect.com/california/helixwaterdistrict.

Each Bid shall be accompanied by cash, a certified or cashier’s check, or Bid Bond secured from a surety company satisfactory to the Board of Directors of the District, the amount of which shall not be less than ten percent (10%) of the submitted Total Bid Price, made payable to Helix Water District as bid security. The bid security shall be provided as a guarantee that within five (5) working days after the District provides the successful bidder the Notice of Award, the successful Bidder will enter into a contract and provide the necessary bonds and certificates of insurance.

The bid security will be declared forfeited if the successful Bidder fails to comply within said time.

No interest will be paid on funds deposited with District.

A mandatory Pre-Bid Conference is scheduled for 10:00 am on Tuesday, August 11, 2026 to review the Project’s existing conditions at R.M. Levy Water Treatment Plant site located at 9550 Lake Jennings Park Road, Lakeside, CA 92040. Representatives of the District and consulting engineers, if any, will be present. Questions asked by Bidders at the Pre-Bid Conference not specifically addressed within the Contract Documents shall be answered in writing, and shall be sent to all Bidders present at the Pre-Bid Conference. Bids will not be accepted from any bidder who did not attend the mandatory Pre-Bid Conference.

http://www.bidnetdirect.com/california/helixwaterdistrict

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The successful Bidder will be required to furnish a Faithful Performance Bond and a Labor and Material Payment Bond each in an amount equal to one hundred percent (100%) of the Contract price. Each bond shall be in the forms set forth herein, shall be secured from a surety company that meets all State of California bonding requirements, as defined in California Code of Civil Procedure Section 995.120, and that is a California admitted surety insurer.

Pursuant to Section 22300 of the Public Contract Code of the State of California, the successful Bidder may substitute certain securities for funds withheld by District to ensure its performance under the contract.

Pursuant to Labor Code Section 1773, District has obtained the prevailing rate of per diem wages and the prevailing wage rate for holiday and overtime work applicable in San Diego County from the Director of the Department of Industrial Relations for each craft, classification, or type of worker needed to execute this contract. A copy of these prevailing wage rates may be obtained via the internet at: www.dir.ca.gov/dlsr/.

In addition, a copy of the prevailing rate of per diem wages is available at the District’s Administration Office and shall be made available to interested parties upon request. The successful bidder shall post a copy of the prevailing wage rates at each job site. It shall be mandatory upon the Bidder to whom the Contract is awarded, and upon any subcontractors, to comply with all Labor Code provisions, which include but are not limited to the payment of not less than the said specified prevailing wage rates to all workers employed by them in the execution of the Contract, employment of apprentices, hours of labor and debarment of contractors and subcontractors.

Pursuant to Labor Code sections 1725.5 and 1771.1, all contractors and subcontractors that wish to bid on, be listed in a bid proposal, or enter into a contract to perform public work must be registered with the Department of Industrial Relations. No Bid will be accepted nor any contract entered into without proof of the contractor’s and subcontractors’ current registration with the Department of Industrial Relations to perform public work. If awarded a contract, the Bidder and its subcontractors, of any tier, shall maintain active registration with the Department of Industrial Relations for the duration of the Project.

This Project is subject to compliance monitoring and enforcement by the Department of Industrial Relations. In bidding on this project, it shall be the Bidder’s sole responsibility to evaluate and include the cost of complying with all labor compliance requirements under this contract and applicable law in its Bid.

Unless otherwise provided in the Instructions for Bidders, each Bidder shall be a licensed contractor pursuant to sections 7000 et seq. of the Business and Professions Code in the following classification(s) throughout the time it submits its Bid and for the duration of the contract: Class A.

http://www.dir.ca.gov/dlsr/

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The California Air Resources Board (“CARB”) implemented amendments to the In-Use Off-Road Diesel-Fueled Fleets Regulations (“Regulation”) which are effective on January 1, 2024 and apply broadly to all self-propelled off road diesel vehicles 25 horsepower or greater and other forms of equipment used in California. A copy of the Regulation is available at https://ww2.arb.ca.gov/sites/default/files/barcu/regact/2022/off-roaddiesel/appa-1.pdf.

Bidders are required to comply with all CARB and Regulation requirements, including, without limitation, all applicable sections of the Regulation, as codified in Title 13 of the California Code of Regulations section 2449 et seq. throughout the term of the Project. Bidders must provide, with their Bid, copies of Bidder’s and all listed subcontractors most recent, valid Certificate of Reported Compliance (“CRC”) issued by CARB. Failure to provide valid CRCs as required herein may render the Bid non-responsive.

The District requires that all materials, methods and services utilized by the Contractor for this Project be in conformance with the current edition of the Water Agencies’ Standards Specifications for Potable Water, Recycled Water and Sewer Facilities (“Standard Specifications”). Substitution requests shall be made within 35 calendar days after the award of the contract. Pursuant to Public Contract Code Section 3400(b), the District may make findings designating that certain additional materials, methods or services by specific brand or trade name other than those listed in the Standard Specifications be used for the Project. Such findings, as well as the materials, methods or services and their specific brand or trade names that must be used for the Project may be found in the Special Conditions.

District shall award the contract for the Project to the lowest responsive, responsible Bidder, as set forth in 00300 – Bid Form, provided the Bid is in conformance with the instructions provided herein, and that it is in the interest of the District to accept it. District reserves the right to reject any or all Bids and to waive any irregularity in a Bid.

Dated: La Mesa, California HELIX WATER DISTRICT

By the Order of the Board of Directors Board Secretary

July 15, 2026

-5- July 2026 00100 – INSTRUCTIONS TO BIDDERS

CIP25203

00100 – INSTRUCTIONS TO BIDDERS

1-1 SECURING DOCUMENTS

Drawings, Specifications, Project Documents and Standards may be obtained online from Bidnet (California Purchasing Group) at http://www.bidnetdirect.com/california/helixwaterdistrict.

Water Agencies’ Standards Specifications may be obtained via the internet at www.sdwas.org.

The District will not provide paper copies. It is the responsibility of each prospective Bidder to download and print all bid documents for review and to verify the completeness of bid documents before submitting a bid. The District does not assume any liability or responsibility based on any defective or incomplete copying, excerpting, scanning, faxing, downloading or printing of the bid documents.

1-2 EXAMINATION OF SITE AND CONTRACT DOCUMENTS

At its own expense and prior to submitting its Bid, each Bidder shall visit the site of the proposed work and fully acquaint itself with the conditions relating to the construction and labor required so that the Bidder may fully understand the Work, including but not limited to difficulties and restrictions attending the execution of the Work under the Contract. Each Bidder shall carefully examine the Drawings, and shall read the Specifications, Contract, and all other documents referenced herein. Each Bidder shall also determine the local conditions which may in any way affect the performance of the Work, including local tax structure, contractors’ licensing requirements, availability of required insurance, the prevailing wages and other relevant cost factors, shall familiarize itself with all federal, state and local laws, ordinances, rules, regulations and codes affecting the performance of the Work, including the cost of permits and licenses required for the Work, and shall make such surveys and investigations, including investigations of subsurface or latent physical conditions at the site or where work is to be performed as may be required. Bidders are responsible for consulting the standards referenced in the Contract.

The failure or omission of any Bidder to receive or examine any contract documents, forms, instruments, addenda, or other documents, or to visit the site and acquaint itself with conditions there existing shall in no way relieve any Bidder from any obligation with respect to its Bid or to the contract and no relief for error or omission will be given except as required under State law.

The submission of a Bid shall be taken as conclusive evidence of compliance with this section.

1-3 INTERPRETATION OF DRAWINGS AND DOCUMENTS

Prospective Bidders unclear as to the true meaning of any part of the Drawings, Specifications or other proposed contract documents may submit to the Engineer of the District a written request for interpretation. The prospective Bidder submitting the request is responsible for prompt delivery. Interpretation of the Drawings, Specifications or other proposed contract documents will be made only by a written addendum duly issued and a copy of such addenda will be furnished electronically via Bidnet (California Purchasing Group) at http://www.bidnetdirect.com/california/helixwaterdistrict to all parties who have registered on http://www.bidnetdirect.com/california/helixwaterdistrict http://www.sdwas.org/

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Bidnet. The District will not be responsible for any other explanation or interpretations of the proposed documents.

1-4 PRE-BID CONFERENCE

A mandatory Pre-Bid Conference shall be at the Location, Date and Time as indicated in 00030 Notice of Inviting Bids to review the Project’s existing conditions. Representatives of the District and consulting engineers, if any, will be present. Questions asked by Bidders at the Pre-Bid Conference not specifically addressed within the Contract Documents shall be answered in writing and shall be sent to all Bidders present at the Pre-Bid Conference. Bids will not be accepted from any bidder who did not attend the mandatory Pre-Bid Conference.

1-5 ADDENDA

The District reserves the right to revise the Contract Documents prior to the deadline for submission of Bids. Revisions, if any, shall be made by written Addenda. All Addenda issued by the District shall be included in the Bid and made part of the Contract Documents. Pursuant to Public Contract Code Section 4104.5, if the District issues an Addendum which includes material changes to the Project less than 72 hours prior to the deadline for submission of Bids, the District will extend the deadline for submission of Bids. The District may determine, in its sole discretion, whether an Addendum warrants postponement of the Bid submission date. Addenda will be furnished electronically via Bidnet (California Purchasing Group) at http://www.bidnetdirect.com/california/helixwaterdistrict to all parties who have registered on Bidnet. Please Note: Bidders are responsible for ensuring that they have received any and all Addenda. To this end, each Bidder should contact the District’s Engineering Department to verify that they have received all Addenda issued, if any, prior to the deadline for submission of Bids.

The Bidder shall indicate the Addenda received prior to bidding in the space provided in the Bid Form. Failure to indicate all Addenda may be sufficient cause for rejecting the Bid.

1-6 ALTERNATE BIDS

If alternate bid items are called for in the Contract Documents, the time required for completion of the alternate bid items has already been factored into the Contract duration and no additional Contract time will be awarded for any of the alternate bid items. The District may elect to include one or more of the alternate bid items, or to otherwise remove certain work from the Project scope of work. Accordingly, each bidder must ensure that each bid item contains a proportionate share of profit, overhead, and other costs or expenses which will be incurred by the bidder.

1-7 COMPLETION OF BID FORMS

Bids shall only be prepared using copies of the Bid Forms which are included in the Contract Documents. The use of substitute Bid Forms other than clear and correct photocopies of those provided by the District will not be permitted. Bids shall be executed by an authorized signatory

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1-8 MODIFICATIONS OF BIDS

Each Bidder shall submit its Bid in strict conformity with the requirements of the Contract Documents. Unauthorized additions, modifications, revisions, conditions, limitations, exclusions or provisions attached to a Bid may render it non-responsive and may cause its rejection. Bidders shall not delete, modify, or supplement the printed matter on the Bid Forms, or make substitutions thereon. Oral, telephonic and electronic modifications will not be considered.

1-9 CONTRACTOR’S MINIMUM SELF-PERFORMANCE

Bidder must self-perform a minimum of fifty percent (50%) of the work on the Project.

1-10 SUBCONTRACTORS

Bidder shall set forth the name, address of the place of business, and contractor license number of each subcontractor who will perform work, labor, furnish materials or render services to the bidder on said contract and each subcontractor licensed by the State of California who, under subcontract to bidder, specially fabricates and installs a portion of the Work described in the Drawings and Specifications in an amount in excess of one half of one percent (0.5%) of the total bid price, and shall indicate the portion of the Work to be done by such subcontractor in accordance with Public Contract Code Section 4104.

1-11 LICENSING REQUIREMENTS

Pursuant to Business and Professions Code Section 7028.5 and Public Contract Code Section 3300, all bidders must possess proper licenses for performance of this Contract. Subcontractors must possess the appropriate licenses for each specialty subcontracted. Pursuant to Business and Professions Code Section 7028.15, the District shall consider any bid submitted by a contractor not currently licensed in accordance with state law and pursuant to the requirements found in the Contract Documents to be nonresponsive, and the District shall reject the Bid. The District shall have the right to request, and Bidders shall provide within ten (10) calendar days, evidence satisfactory to the District of all valid license(s) currently held by that Bidder and each of the Bidder’s subcontractors, before awarding the Contract.

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Notwithstanding anything contained herein, if the Work involves federal funds, the Contractor shall be properly licensed by the time the Contract is awarded, pursuant to the provisions of Public Contract Code Section 20103.5.

1-12 BID GUARANTEE (BOND)

Each bid shall be accompanied by: (a) cash; (b) a certified or cashier’s check made payable to Helix Water District; or (c) a Bid Bond secured from a surety company satisfactory to the Board of Directors of the District, the amount of which shall not be less than ten percent (10%) of the Total Bid Price, made payable to Helix Water District as bid security. Personal sureties and unregistered surety companies are unacceptable. The surety insurer shall be California admitted surety insurer, as defined in Code of Civil Procedure Section 995.120. The bid security shall be provided as a guarantee that within ten (10) working days after the District provides the successful bidder the Notice of Award, the successful bidder will enter into a contract and provide the necessary bonds and certificates of insurance. The bid security will be declared forfeited if the successful bidder fails to comply within said time, and District may enter into a contract with the next lowest responsive responsible bidder, or may call for new bids. No interest shall be paid on funds deposited with the District. District will return the security accompanying the bids of all unsuccessful bidders no later than 60 calendar days after award of the contract.

1-13 IRAN CONTRACTING ACT OF 2010

In accordance with Public Contract Code Section 2200 et seq., the District requires that any person that submits a bid or proposal or otherwise proposes to enter into or renew a contract with the District with respect to goods or services of one million dollars ($1,000,000) or more, certify at the time the bid is submitted or the contract is renewed, that the person is not identified on a list created pursuant to subdivision (b) of Public Contract Code Section 2203 as a person engaging in investment activities in Iran described in subdivision (a) of Public Contract Code Section 2202.5, or as a person described in subdivision (b) of Public Contract Code Section 2202.5, as applicable.

The form of such Iran Contracting Certificate is included with the bid package and must be signed and dated under penalty of perjury.

1-14 NONCOLLUSION DECLARATION

Bidders on all public works contracts are required to submit a declaration of noncollusion with their bid. This form is included with the bid package and must be signed and dated under penalty of perjury.

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1-15 PUBLIC WORKS CONTRACTOR REGISTRATION CERTIFICATION

Pursuant to Labor Code Sections 1725.5 and 1771.1, all contractors and subcontractors that wish to bid on, be listed in a bid proposal, or enter into a contract to perform public work must be registered with the Department of Industrial Relations. No bid will be accepted nor any contract entered into without proof of the contractor’s and subcontractors’ current registration with the Department of Industrial Relations to perform public work. If awarded a contract, the bidder and its subcontractors, of any tier, shall maintain active registration with the Department of Industrial Relations for the duration of the Project. To this end, Bidder shall sign and submit with its Bid the Public Works Contractor Registration Certification on the form provided, attesting to the facts contained therein. Failure to submit this form may render the bid non-responsive. In addition, each Bidder shall provide the registration number for each listed subcontractor in the space provided in the Designation of Subcontractors form.

1-16 BIDDER INFORMATION AND EXPERIENCE FORM

Each Bidder shall complete the questionnaire provided within Section 00400 herein and shall submit the questionnaire along with its Bid. Failure to provide all information requested within Section 00400 along with the Bid may cause the bid to be rejected as non-responsive. The District reserves the right to reject any Bid if an investigation of the information submitted does not satisfy the Engineer that the Bidder is qualified to properly carry out the terms of the contract.

1-17 WORKERS’ COMPENSATION CERTIFICATION

In accordance with the provisions of Labor Code Section 3700, Contractor shall secure the payment of compensation to its employees. Contractor shall sign and file with the District the following certificate prior to performing the Work under this Contract:

I am aware of the provisions of Section 3700 of the Labor Code, which require every employer to be insured against liability for workers’ compensation or to undertake self-insurance in accordance with the provisions of that code, and I will comply with such provisions before commencing the performance of the work of this contract.

The form of such Workers’ Compensation Certificate is included as part of this document.

1-18 COMPLIANCE WITH CALIFORNIA AIR RESOURCES BOARD REGULATIONS

The District is a Public Works Awarding Body, as defined under Title 13 California Code of Regulations section 2449(c)(46). Accordingly, Bidders must submit, with their Bids, a valid Certificate of Reported Compliance (“CRC”) for the Bidder’s and its listed subcontractors fleet (including any applicable leased equipment or vehicles). Bidder must complete and submit the Fleet Compliance Certification on the form provided. Failure to provide a CRC for the Bidder, and for all listed subcontractors, or failure to complete the Fleet Compliance Certification, may render the Bid non-responsive

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1-19 SIGNING OF BIDS

All Bids submitted shall be executed by the Bidder or its authorized representative. Bidders may be asked to provide evidence in the form of an authenticated resolution of its Board of Directors or a Power of Attorney evidencing the capacity of the person signing the Bid to bind the Bidder to each Bid and to any Contract arising therefrom.

If a Bidder is a joint venture or partnership, it may be asked to submit an authenticated Power of Attorney executed by each joint venturer or partner appointing and designating one of the joint venturers or partners as a management sponsor to execute the Bid on behalf of Bidder. Only that joint venturer or partner shall execute the Bid. The Power of Attorney shall also: (1) authorize that particular joint venturer or partner to act for and bind Bidder in all matters relating to the Bid; and (2) provide that each venturer or partner shall be jointly and severally liable for any and all of the duties and obligations of Bidder assumed under the Bid and under any Contract arising therefrom. The Bid shall be executed by the designated joint venturer or partner on behalf of the joint venture or partnership in its legal name.

1-20 SUBMISSION OF SEALED BIDS

Once the Bid and supporting documents have been completed and signed as set forth herein, they shall be placed, along with the Bid Guarantee and other required materials, in a sealed envelope, addressed and delivered or mailed, postage prepaid, to the Secretary of the Board of Directors of the District before the time and day set for the receipt of bids. The envelope shall bear the title of the Work and the name of the bidder. No oral or telephonic bids will be considered. No forms transmitted via the internet, e-mail, facsimile, or any other electronic means will be considered unless specifically authorized by the District as provided herein. Bids received after the time and day set for the receipt of bids shall be returned to the bidder unopened.

1-21 OPENING OF BIDS

At the time and place set for the opening and reading of bids, each and every bid received prior to the time and day set for the receipt of bids will be publicly opened and read. The District will leave unopened any Bid received after the specified date and time, and any such unopened Bid will be returned to the bidder. It is the bidder’s sole responsibility to ensure that its Bid is received as specified. Bids may be submitted earlier than the date(s) and time(s) indicated.

The public reading of each bid will include the following information:

A. The name and business location of the bidder.

B. The nature and amount of the bid security furnished by bidder.

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C. The acknowledgement of addenda.

D. The bid amount.

Bidders or their representatives and other interested persons may be present at the opening of the bids. The District may, in its sole discretion, elect to postpone the opening of the submitted Bids. The District reserves the right to reject any or all Bids and to waive any informality or irregularity in any Bid.

1-22 WITHDRAWAL OF BID

Any bid may be withdrawn by written request, incurring no penalty, at any time prior to the scheduled closing time for receipt of bids. Requests to withdraw bids shall be submitted to the Secretary of the Board of Directors of the District by mail or by hand delivery through a secure mail slot at the District’s Administration Office. Requests to withdraw bids shall be worded so as not to reveal the amount of the original bid. Withdrawn bids may be resubmitted until the time and day set for the receipt of bids, provided that resubmitted bids are in conformance with the instructions herein.

Bids may be withdrawn after the scheduled closing time for receipt of bids only by providing written notice to District within five (5) working days of the bid opening and in compliance with Public Contract Code Section 5100 et seq., or as otherwise may be allowed with the consent of the District.

1-23 BIDDERS INTERESTED IN MORE THAN ONE BID

No Bidder shall be allowed to make, file or be interested in more than one bid for the same work unless alternate bids are specifically called for. A person, firm or corporation that has submitted a sub-proposal to a Bidder, or that has quoted prices of materials to a Bidder, is not thereby disqualified from submitting a sub-proposal or quoting prices to other bidders. No person, firm, corporation, or other entity may submit a sub-proposal to a Bidder, or quote prices of materials to a Bidder, when also submitting a prime Bid on the same Project.

1-24 SUBSTITUTION OF SECURITY

The Contract Documents call for monthly progress payments based upon the percentage of the Work completed. The District will retain a percentage of each progress payment as provided by the Contract Documents. At the request and expense of the successful Bidder, the District will substitute securities for the amount so retained in accordance with Public Contract Code Section 22300.

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1-25 PREVAILING WAGES

The District has obtained from the Director of the Department of Industrial Relations the general prevailing rate of per diem wages in the locality in which this work is to be performed for each craft or type of worker needed to execute the Contract. These rates are on file and available at the District’s Administration Office or may be obtained online at http://www.dir.ca.gov. Bidders are advised that a copy of these rates must be posted by the successful Bidder at the job site(s).

1-26 DEBARMENT OF CONTRACTORS AND SUBCONTRACTORS

In accordance with the provisions of the Labor Code, contractors or subcontractors may not perform work on a public works project with a subcontractor who is ineligible to perform work on a public project pursuant to Labor Code Sections 1777.1 or 1777.7. Any contract on a public works project entered into between a contractor and a debarred subcontractor is void as a matter of law. A debarred subcontractor may not receive any public money for performing work as a subcontractor on a public works contract. Any public money that is paid to a debarred subcontractor by the Contractor for the Project shall be returned to the District. The Contractor shall be responsible for the payment of wages to workers of a debarred subcontractor who has been allowed to work on the Project.

1-27 INSURANCE REQUIREMENTS

Prior to commencing work, the successful bidder shall purchase and maintain insurance as set forth in the General Conditions.

1-28 PERFORMANCE BOND AND PAYMENT BOND REQUIREMENTS

The successful bidder will be required to furnish a Labor and Material Payment Bond and a Faithful Performance Bond on the forms provided in Sections 00600 and 00610, each in an amount equal to one hundred percent (100%) of the contract price. Each bond shall be secured from a surety company that meets all State of California bonding requirements, as defined in California Code of Civil Procedure Section 995.120 and is admitted by the State of California. Each bond shall be accompanied, upon the request of District, with all documents required by California Code of Civil Procedure Section 995.660 to the extent required by law. All bonding and insurance requirements shall be completed and submitted to District within ten (10) working days from the date the District provides the successful bidder with the Notice of Award.

1-29 SALES AND OTHER APPLICABLE TAXES, PERMITS, LICENSES AND FEES

Contractor and its subcontractors performing work under this Contract will be required to pay California sales tax and other applicable taxes, and to pay for permits, licenses and fees required by the agencies with authority in the jurisdiction in which the Work will be located, unless otherwise expressly provided by the Contract Documents.

http://www.dir.ca.gov/

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1-30 PERMIT AND INSPECTION FEE ALLOWANCE

Notwithstanding Section 1-28, the Bid Form contains an allowance for the Contractor’s cost of acquiring traffic control permits and for construction inspection fees that may be charged to the Contractor by the Agency of Jurisdiction. The allowance is included within the Bid Form to eliminate the need by bidders to research or estimate the costs of traffic control permits and construction inspection fees prior to submitting a bid. The allowance is specifically intended to account for the costs of traffic control permits and construction inspection fees charged by the local Agency of Jurisdiction only. No other costs payable by Contractor to the Agency of Jurisdiction are included within the allowance.

1-31 FILING OF BID PROTESTS

Bidders may file a “protest” of a Bid with the District’s Engineering Department. In order for a Bidder’s protest to be considered valid, the protest must:

A. Be filed in writing within five (5) calendar days after the bid opening date;

B. Clearly identify the specific irregularity or accusation;

C. Specify in detail the grounds for protest and the facts supporting the protest; and

D. Include all relevant, supporting documentation with the protest at time of filing.

If the protest does not comply with each of these requirements, the District may reject the protest without further review.

If the protest is timely and complies with the above requirements, the District’s Director of Engineering, or other designated District staff member, shall review the protest, any response from the challenged Bidder(s), and all other relevant information. The Director of Engineering will provide a written decision to the protestor.

The procedure and time limits set forth in this section are mandatory and are the sole and exclusive remedy in the event of a Bid protest. Failure to comply with these procedures shall constitute a failure to exhaust administrative remedies and a waiver of any right to further pursue the Bid protest, including filing a Government Code Claim or legal proceedings.

1-32 BASIS OF AWARD; BALANCED BID

The District shall award the Contract to the lowest responsible Bidder submitting a responsive Bid. The lowest Bid will be determined on the basis set forth in 00300 Bid Form.

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The District may reject any Bid which, in its opinion when compared to other Bids received or to the District’s internal estimates, does not accurately reflect the cost to perform the Work. The District may reject as non-responsive any Bid which unevenly weights or allocates costs, including but not limited to overhead and profit to one or more particular bid items.

1-33 AWARD PROCESS

Once all Bids are opened and reviewed to determine the lowest responsive and responsible Bidder, the District’s Board may award the contract. The apparent successful Bidder should begin to prepare the following documents: (1) the Performance Bond; (2) the Payment Bond; and (3) the required insurance certificates and endorsements. Once the District notifies the Bidder of the award, the Bidder will have ten (10) working days from the date of this notification to execute the Contract and supply the District with all of the required documents and certifications.

The Bidder’s failure to submit the required documents within the stated time may result in loss of the Contract and forfeiture of the bid security, and the District may award the Contract to the next lowest bidder. If the District elects to accept the required documents after the expiration of the stated time, the Contract duration will begin to run ten (10) working days from the date of the notification of award even if the District has not issued a Notice to Proceed. Otherwise, once the District receives all of the properly drafted and executed documents and certifications from the Bidder, the District shall issue a Notice to Proceed to that Bidder and the Contract duration shall commence on the date stated in the Notice to Proceed.

1-34 EXECUTION OF CONTRACT

As required herein the Bidder to whom an award is made shall execute the Contract in the amount determined by the Contract Documents. The District may require appropriate evidence that the persons executing the Contract are duly empowered to do so. The Contract and bond forms to be executed by the successful Bidder are included within these Specifications and shall not be detached.

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CIP25203

00300 – BID FORM

Bids will be received at the Helix Water District Administration Office, 7811 University Avenue, La Mesa, California, until 10:00 a.m. on Tuesday, September 1, 2026.

The District shall award the Contract to the lowest responsible Bidder submitting a responsive Bid. The lowest Bid will be determined on the basis of the Total Bid Price.

NAME OF BIDDER: ________________________________________________________

To the Honorable Board of Directors of the Helix Water District 7811 University Avenue La Mesa, California 91942

The undersigned hereby declare that we have carefully examined the location of the proposed Work, and have read and examined the Contract Documents, including all plans, specifications, and all addenda, if any for the following Project:

R.M. LEVY WATER TREATMENT PLANT

FILTER REHABILITATION PROJECT – CIP25203

We hereby propose to furnish all labor, materials, equipment, tools, transportation, and services, and to discharge all duties and obligations necessary and required to perform and complete the Project, as described and in strict conformity with the Drawings, these Specifications and the current edition of the Water Agencies’ Standards Specifications for Potable Water, Recycled Water and Sewer Facilities for the TOTAL BID PRICE indicated herein.

The undersigned acknowledges receipt, understanding, and full consideration of the following addenda to the Contract Documents:

Addendum No.(s) _______________________________________________________________

1. Attached is the required Bid Guarantee in the amount of not less than 10% of the Total Bid Price.

2. Attached is the completed Designation of Subcontractors form.

3. Attached is the fully executed Noncollusion Declaration form.

4. Attached is the completed Iran Contracting Act Certification form.

5. Attached is the completed Public Works Contractor Registration Certification form.

6. Attached is the completed Contractor’s Certificate Regarding Workers’ Compensation form.

7. Attached is the completed Fleet Compliance Certification.

8. Attached is the completed Bidder Information and Experience form.

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A. BID SCHEDULE

Item Description Qty Unit Unit Cost Bid Amount

1 Mobilization and Demobilization (Not To Exceed 5% of the Total Bid Amount) 1 LS $ $

Demolition and Disposal of Existing Filter Underdrain Facilities: Demolition and disposal of all existing items as defined in the Contract Documents, including, but not limited to: filter media; underdrains including all grout and associated appurtenances; surface wash water piping; stainless-steel baffles; and all other demolition and disposal work associated with replacement of the filters. Clean and prepare all existing filter basin concrete surfaces for inspection and approval prior to receiving new underdrains.

Repairs to damaged concrete and sealant materials within the filter basins shall be paid through the Bid Line Item for concrete repairs, below.

1 LS $ $

Filter Underdrain Installation Work:

Procurement and installation of filter underdrain systems as defined in the Contract Documents, including, but not limited to: underdrain laterals, piping, fittings, hardware, anchorage, and connections to existing structures in accordance with filter underdrain manufacturer’s certification requirements and the manufacturer’s proprietary connection methods; startup, testing, and commissioning of the filter underdrain and media systems; and all other related work.

1 LS $ $

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Surface Wash Piping Installation Work:

Procurement and installation of new surface wash piping, including, but not limited to any associated appurtenances, support hardware, and testing in accordance with the Contract Documents.

1 LS $ $

Filter Media Installation Work:

Procurement and Installation of filter media in accordance with the Contract Documents, including, but not limited to placement and leveling the new filter media; cleaning and preparation of filters prior to placement of new materials; backwashing and testing in accordance with filter underdrain manufacturer requirements and in coordination with District staff.

1 LS $ $

Filter Gullet Access Manways Installation Work: All work associated with drawings S-1 and S-2 in accordance with the Contract Documents, including, but not limited to demolition of frames, covers, gaskets, anchorage, sealing surfaces, and related appurtenances; procurement and installation of circular manways including all new gaskets and hardware, and scanning of rebar using non-destructive methods, any necessary concrete repairs and surface preparation; field verification, alignment, testing, and leak verification of installed systems; and restoration of disturbed surfaces.

1 LS $ $

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Filter Gallery Access Manways Installation Work: All work as shown on drawing S-3 in accordance with the Contract Documents, including, but not limited to procurement and installation of manways with all new gaskets and hardware; detection of existing rebar using non-destructive methods; testing, and leak verification of installed systems; removal and disposal of existing access plate assemblies, and restoration of disturbed surfaces including surface preparation and coating of embedded steel angles.

1 LS $ $

Concrete Repairs Allowance:

On a Time and Materials basis, the Contractor shall: repair spalled and/or cracked concrete in filter walls and floors; and remove, dispose, and replace failed construction joint sealant in the filter basins, subject to approval by the District Engineer.

1 LS $50,000 $50,000

The costs for any Work shown or required in the Contract Documents but not specifically identified as a line item are to be included in the related line items and no additional compensation shall be due to Contractor for the performance of the Work.

In case of discrepancy between the “Unit Price”…