Project Manual and Specifications.pdf

BID DOCUMENTS AND TECHNICAL SPECIFICATIONS

FOR CONSTRUCTION OF

H A R R I S C O U N T Y I M P R O V E M E N T

D I S T R I C T N o . 1 8 – C I T Y P L A C E D C - 1

P O N D S 1 & 3 E X P A N S I O N

H A R R I S C O U N T Y I M P R O V E M E N T D I S T R I C T N O . 1 8

WALTER P MOORE PROJECT NUMBER M03.25094.00

August 2026

STATE OF TEXAS

PROFESS IONA L ENGINEE

R

L ICENSED

138970

SAATVIK SATYAPRAKASH

Walter P. Moore and Associates, Inc.

TBPE Firm Registration No. 1856

87691

JAMES C. DULAC

August 7, 2026

Harris County Improvement District No. 18 TABLE OF CONTENTS

TABLE OF CONTENTS

for

HARRIS COUNTY IMPROVEMENT DISTRICT NO. 18 –

CITY PLACE DC-1 PONDS 1 & 3 EXPANSION

NUMBER

BIDDING AND CONTRACT DOCUMENTS: OF PAGES

COVER ……

TABLE OF CONTENTS

INVITATION TO BIDDERS

INSTRUCTIONS TO BIDDERS

BID PROPOSAL FORM

CONTRACT

GENERAL CONDITIONS OF THE CONTRACT

ATTACHMENT A TO THE GENERAL CONDITIONS OF THE CONTRACT

ATTACHMENT B TO THE GENERAL CONDITIONS OF THE CONTRACT

SPECIAL CONDITIONS OF THE CONTRACT PART A

TEXAS SALES AND USE TAX EXEMPTION CERTIFICATION

PREVAILING WAGE RATE RESOLUTION

MINIMUM WAGE RATE SCALE

PERFORMANCE BOND

PAYMENT BOND

MAINTENANCE BOND

Note: Specifications designated with an HC are Harris County Public Infrastructure Department Standard specifications. Specifications designated with a COH are City of Houston Standard specifications.

Specifications designated with a TXD are Texas Department of Transportation Standard

Specifications. Clarifications and/or minor modifications to the scope of work required by standard specifications may either be made by a supplemental specification as noted below or clarified in the

Summary of Work. Specifications marked with an asterisk (*) are standard specifications that have been amended by supplemental specification. Not all standard specifications listed or referenced in the construct documents are reprinted herein. For documents that are not reprinted, the contractor shall refer to the latest version of the specification section published by the issuing agency.

Specifications without a COH, HC or TXD are project specific specifications.

NUMBER

TECHNICAL SPECIFICATIONS: OF PAGES

DIVISION 1 – GENERAL REQUIREMENTS

01110 SUMMARY OF WORK

01145 USE OF PREMISES

01255 CHANGE ORDER PROCEDURES

01270 MEASUREMENT AND PAYMENT

01292 SCHEDULE OF VALUES

01312 COORDINATION AND MEETINGS

01325 CONSTRUCTION SCHEDULE

01330 SUBMITTAL PROCEDURES

01340 SHOP DRAWINGS, PRODUCT DATA, AND SAMPLES

01351 ENVIRONMENTAL SAFETY AND WORKER PROTECTION

01410 TPDES REQUIREMENTS

01450 CONTRACTOR’S QUALITY CONTROL

01454 TESTING LABORATORY SERVICES

01502 MOBILIZATION

01554 TRAFFIC CONTROL AND STREET SIGNS

01555 TRAFFIC CONTROL AND REGULATION

01570 STORM WATER POLLUTION CONTROLS

01575 STABILIZED CONSTRUCTION ACCESS

01578 CONTROL OF GROUND AND SURFACE WATER

01610 BASIC PRODUCT REQUIREMENTS

01630 PRODUCT SUBSTITUTION PROCEDURES

01725 FIELD SURVEYING

01770 CLOSEOUT PROCEDURES

01785 PROJECT RECORD DOCUMENTS

WALTER P MOORE SPECIFICATIONS

DIVISION 31 - EARTHWORK

SECTION 31 11 00 CLEARING AND GRUBBING .........................................................................................3-7

SECTION 31 22 13 SITE GRADING............................................................................................................... 8-18

SECTION 31 23 33 TRENCHING, BACKFILLING AND COMPACTION ................................................ 19-25

SECTION 31 25 00 EROSION AND SEDIMENTATION CONTROL ........................................................ 26-35

SECTION 31 41 33 TRENCH SAFETY ........................................................................................................ 36-42

DIVISION 32 – EXTERIOR IMPROVEMENTS

SECTION 32 92 13 HYDROMULCH SEEDING .......................................................................................... 43-48

DIVISION 33 – UTILITIES

SECTION 33 40 00 DRAINAGE ................................................................................................................... 49-55

ADDITIONAL SPECIFICATIONS

SECTION 02 35 00 TURF REINFORCEMENT MAT .................................................................................. 56-59

HCFCD 2020 STANDARD SPECIFICATIONS AND DETAILS

END OF SECTION

Harris County Improvement District No. 18 INVITATION TO BIDDERS

Electronic Bids Only, Electronic Signatures Option, and Remote Public Bid Opening Option Page 1 of 1 September 2025

INVITATION TO BIDDERS

Sealed Electronic Bids addressed to Harris County Improvement District No. 18, Attention Robert T Deden, President, Board of Directors, c/o Doyle Black, P.E. will be electronically received, until 3:00 p.m.

Local Time, Monday, August 24, 2026, and then publicly opened and read at the field office of Harris County Improvement District No. 18 (Wastewater Treatment Plant) located at 1000 Oakhome Dr, Spring, TX 77389 with exact coordinates of 30°05′17.5″N 95°26′16.7″W for “Harris County Improvement District No. 18 – City Place DC-1 Ponds 1 & 3 Expansion” for Harris County Improvement District No. 18, Harris County, Texas. In addition to the opening of sealed Bids at the address above, you may view the public opening of sealed Bids via Microsoft Teams. To join via Microsoft Teams, the telephone number for the Bid Opening is 720-617-1734, Conference ID: 577178468.

Scope of Work of the Contract Documents includes the following: Excavation, grading, storm sewer and related improvements associated with the expansion of two existing wet detention pond facilities for Harris County Improvements District No. 18.

Bids received after the closing time will be returned unopened. A MANDATORY pre-bid conference will be held in person on Wednesday, August 19, 2026, at 10:30 a.m. Local Time, at the field office of Harris County Improvement District No. 18 (Wastewater Treatment Plant) located at 1000 Oakhome Dr, Spring, TX 77389 with exact coordinates of 30°05′17.5″N 95°26′16.7″W. Attendance by each prospective bidder or its representative at the pre-bid conference is MANDATORY, and no Bid will be opened unless the bidder or representative was present at the pre-bid conference.

Each Bid must be accompanied by a Bid bond or a certified or cashier’s check, acceptable to the Owner, in an amount not less than five percent (5%) of the total amount Bid, as a guarantee that the successful bidder will enter into the Contract Documents and execute the Bonds on the forms provided and provide the required insurance certificates and Bonds within seven (7) days after the date Contract Documents are received by the successful bidder. If a certified or cashier’s check is provided, the successful bidder shall deliver, at the bid opening address, the original certified or cashier’s check within one (1) business day of receipt of the bid opening.

Copies of the bidding documents may be reviewed and obtained from www.CivcastUSA.com: search City Place. Bidders must register on this website in order to view and/or download specifications, plans, soils report, and environmental reports for this Project. There is NO charge to view or download documents.

Bidder must submit its Bid and Bid Securities in compliance with Owner’s Order Adopting Section 49.2731 Electronic Bidding Rules and all Bids and Bid Securities must be submitted through www.CivcastUSA.com. Bidder must register on this website to submit a Bid and Bid Security and there is a charge to submit Bids and Bid Securities on this website.

By submitting a Bid, bidder acknowledges and agrees that the Contract Documents may be accepted, executed, or agreed to using an Electronic Signature, as defined by and in accordance with Owner’s Electronic Signature Rules for Construction Contracts.

The Owner reserves the right to reject any or all Bids and to waive all defects and irregularities in bidding or bidding process except the time for submitting a Bid. The successful bidder, if any, will be the responsible bidder, which in the Board’s judgment will be most advantageous to the District and result in the best and most economical completion of the Project.

The requirements of Subchapter J, Chapter 552, Government Code, may apply to this Bid and the bidder agrees that the Contract Documents can be terminated if the bidder knowingly or intentionally fails to comply with a requirement of that subchapter.

Harris County Improvements District No. 18 INSTRUCTIONS TO BIDDERS

Instructions to Bidders 4937-4644-5658 v.1

September 2025

INSTRUCTIONS TO BIDDERS

1. PREPARATION OF BIDS. Unless otherwise directed in the Invitation to Bidders, each Bid must be submitted on the bid forms provided or on photocopies of the forms, in conformity with the requirements of the Invitation to Bidders, these Instructions to Bidders (“Instructions”), and the instructions printed on the bid form. In addition, if submitting a paper Bid, the Bid must be submitted in duplicate.

All blanks on the bid form must be completed and no change shall be made to the bid form or any other of the Contract Documents. All amounts must be in figures, with amounts extended and totaled. If minimum unit prices have been established for certain items, the minimum unit prices will be shown on the bid form. See Paragraph 8 of these Instructions. If the bidder chooses not to bid on optional items (if any), “No Bid” must be entered in the bid space. Any Bid may be rejected if it contains any omission, erasure, alteration, addition, irregularity of any kind, or items not called for; if it does not submit prices for each of the items in the bid form; if it is not signed by the bidder; if it is unbalanced; or if it in any manner, fails to conform to the conditions of the Invitation to Bidders and these Instructions. An “unbalanced” Bid means a Bid containing unit prices that are significantly less than cost for some items and significantly more than cost for others. This may be evidenced by submission of unit price Bid items where the cost is significantly higher/lower than the cost of the same Bid items submitted by other Bidders on the same Project.

The bidder must sign its Bid. If the Bid is made by a partnership or corporation, the name and address of the partnership or corporation must be shown together with the names and addresses of the partners or officers. If the Bid is made by an individual, it must be executed by that person; if made by a partnership, it must be executed by one of the partners (and if by a limited partnership, then executed by the general partner); or if made by a corporation, it must be executed in the corporate name by the president or a vice-president (or other corporate officer accompanied by evidence of authority to sign) and the corporate seal must be affixed and attested by the secretary or assistant secretary of the corporation. The corporate address and state of incorporation shall be shown below the signature.

When applicable, evidence of authority to conduct business as an out-of-state corporation in the State of Texas must be provided in accordance with the paragraph entitled QUALIFICATION OF BIDDERS.

State contractor license number, if any, must also be shown.

The Bid and the Bid Security must be sealed and must identify the contents (i.e., Bid or Bid Security), the bidder’s name, and the job name and number, and be addressed to the Owner as prescribed in the Invitation to Bidders.

2. CONTRACT DOCUMENTS. The Contract Documents are complementary and must be read together as a whole; what is called for by one is binding as if called for by all.

Bidders desiring further information or further interpretation of any part of the Contract Documents are hereby obligated to submit a written request online to the www.CivcastUSA.com system for such information to Engineer not less than four (4) calendar days before the Bid opening. If appropriate, answers to these requests will be given, in writing, to all bidders as addenda to the Contract Documents, and when each addendum is issued it becomes a part of the Contract Documents. No explanation or interpretation of the Contract Documents, other than written addenda, is binding.

Should a bidder find discrepancies or errors in or omissions from the Contract Documents or should the bidder be in doubt as to any meaning, the bidder is hereby obligated to notify Engineer in writing. It is http://www.civcastusa.com/

Instructions to Bidders the responsibility of each bidder to determine if it has received all addenda, complete files of which will be maintained at the Engineer’s office and the office designated to receive the Bids, if any.

Each bidder must inform itself fully of the construction and labor conditions under which the Work will be performed and will be presumed to have inspected the Site and to have read and to be thoroughly familiar with the Contract Documents. Failure to do so will not relieve the successful bidder of its obligation to furnish all materials and labor necessary to carry out the requirements of the Contract Documents and to complete the Work for the consideration in its Bid.

3. PRE-BID CONFERENCE. A MANDATORY pre-bid conference among Owner, Engineer, prospective bidders, and others will be held to discuss the scope of the Work and to answer questions concerning the Work. No addendum will be issued at this conference, but an addendum will be issued afterwards, if necessary, to answer questions. The MANDATORY pre-bid conference will be held at the place and time stated in the Invitation to Bidders or as modified by written addenda. Attendance by each prospective bidder or its representative at the pre-bid conference is MANDATORY, and no Bid will be opened unless the bidder or representative was present at the pre-bid conference. If an attendee fails to provide his/her name, firm represented, street address, and telephone number, Owner may treat such attendee as not having been present and as having failed to comply with the mandatory pre-bid conference requirement. No person can represent more than one bidder at the MANDATORY pre-bid conference.

If a person claims to represent more than one bidder at the pre-bid conference, the Bid of each bidder so represented will be returned unopened.

4. BID SECURITY. Each Bid must be accompanied by a bid bond or a certified or cashier’s check, acceptable to the Owner, in an amount not less than five (5) percent of the total amount bid (the “Bid Security”), as a guarantee that the successful bidder will enter into the Contract and execute the required Bonds on the forms provided and provide the required insurance certificates and Bonds within seven (7) days after the date Contract Documents are received by the successful bidder. Bid Securities will be returned to all but the three (3) most qualified, responsible bidders within three (3) days after opening of Bids, and the latter’s Bid Securities will be returned after complete execution of the Contract Documents.

If the successful bidder does not enter into the Contract after notice of award, then the bidder’s Bid Security will be forfeited and will be retained by Owner. If the award of the Contract to the successful bidder is canceled or not executed for any reason, the Owner may accept the next lowest bid and proceed with the next-lowest qualified bidder.

5. BONDS. The successful bidder must furnish a performance bond and a payment bond each in the sum of 100 percent (100%) of the Contract Price. The successful bidder must also provide a two-year

(2) Maintenance Bond for fifty (50) percent of the cost of the construction of the improvements that will be owned by Harris County Improvement District No. 18. The Bonds must be in the form prescribed by the Contract Documents except as required otherwise by Laws and Regulations. The Bonds must be from a surety company holding a permit from the State of Texas to act as surety. Unless otherwise specified, the cost of proving Bonds must be included in the bidder’s total Bid amount. The surety company must have a minimum Best Key Rating of “B+” or better. The surety company, the agency and agent issuing the Bonds must be authorized to issue Bonds in Texas in an amount equal to the total Contract Price and such authorization must be recorded in the files of the Texas Department of Insurance. The person executing the Bonds must be a licensed Texas local recording agent and such licensing must be recorded in the files of the Texas Department of Insurance. All Bonds signed by an agent must be accompanied by a certified copy of the agent’s authority to act. The Bonds must be executed by a duly appointed representative of the surety company licensed by the State of Texas as a General Lines Agent and such licensing must be recorded in the files of the Texas Department of Insurance. If the surety company does not have such a rating due to the length of time it has existed, the surety company must be eligible to participate in the surety bond guarantee program of the Small Business Administration and must be an

Instructions to Bidders approved surety listed in the current U.S. Department of Treasury Circular 570, and must meet all of the rules and regulations of the Treasury Department with respect to performance and payment bonds for federal jobs, including specifically the rules related to underwriting limitation. For contracts over $100,000, the surety must also hold a certificate of authority from the United States Secretary of Treasury to qualify as a surety on obligations permitted or required under federal law, or have obtained reinsurance for any liability in excess of $1,000,000 from a reinsurer that is authorized and admitted as a reinsurer in the State of Texas and is the holder of a certificate of authority from the United States Secretary of Treasury to qualify as a surety or reinsurer on obligations permitted or required under federal law. If bidder’s proposed surety company, agency or agents do not meet the requirements herein, then Owner may refrain from considering the bidder for Contract award and Owner may require bidder to forfeit its Bid Security.

It is further agreed that the successful bidder will execute the Bonds required for the satisfactory performance of the Work, the fulfillment of any guarantees required, and the prompt payment to all persons supplying labor and materials in the prosecution of the Work, in accordance with the Contract Documents and on the forms provided for this purpose. It is agreed that this Contract is not in effect until the required Bonds are furnished and approved by Owner. Upon increase of the Contract Price authorized by Change Order, Contractor must immediately provide revised Bonds for such increased Contract Price.

Contractor’s failure to provide compliant Bonds may be grounds for immediate termination regardless of whether the Contractor has started the Work on the Project.

If the surety on any Bond furnished by Contractor is declared bankrupt or becomes insolvent or its right to do business is terminated in any state where any part of the Project is located or it ceases to meet the requirements herein Contractor must promptly notify Owner; Developer, if there is a Special Conditions of the Contract Part B; and Engineer and must, within ten (10) calendar days after the event giving rise to such notification, provide another Bond and surety to fulfill the required obligations.

6. DELIVERY OF BIDS. It is each bidder’s responsibility to deliver its Bid and Bid Security as stated in the Invitation to Bidders before the closing time. The fact that a Bid and a Bid Security were dispatched will not be considered. The Bid and Bid Security must be timely delivered to be considered.

7. “OR EQUAL” SUBMISSIONS. Where materials or equipment are specified by a trade or brand name, it is not the intention of the Owner to discriminate against an equal product of another manufacturer, but to set a definite standard of quality or performance. In preparing its proposal, each bidder is expected to include in its base Bid the cost of the item so specified. However, in certain Technical Specification sections, manufacturers are listed followed by “or equal”. In certain other Technical Specification sections, manufacturers are listed with “or equal” not included. In those items where “or equal” is not included, it is hereby added and understood to be included, even though not specifically stated in each Technical Specification. If a bidder chooses to submit a suggested “or equal” product in lieu of a product by one of the named manufacturers, Owner will evaluate the item to determine if it is an “equal”. The bidder is responsible for providing all data required to evaluate an item submitted as a suggested “or equal.” Owner’s decision on whether a suggested manufacturer is an “equal” is final. No claims for additional cost or time delay, etc. will be accepted if a suggested manufacturer is submitted by bidder as an “equal” and Owner decides the item is not “equal”.

Bidder must submit its list of suggested “or equal” items at time of Bid submission. No additional suggested “or equal” items will be considered after bid opening.

8. MINIMUM UNIT PRICE ITEMS. If the approximate quantity and a minimum unit price have been established for items in the bid form, the bidder may not bid a unit price less than the minimum

Instructions to Bidders value; however, it may bid an amount greater than the minimum unit price. If no entry is made in the spaces provided, the minimum unit prices shown apply.

9. EXTRA UNIT PRICE ITEMS. Extra Unit Price Items are included to facilitate payment for changes and alterations that may be required to complete the Work. The Work, as provided by the Contract Documents, is described in bid items other than Extra Unit Price Items. When additional Work covered by Extra Unit Price Items is performed, payment will be based on the quantity constructed and the unit prices entered in the Bid.

10. TIME FOR COMPLETION. Contractor will not be allowed time extensions (i) due to inclement weather except for Force Majeure events as defined under Section 1.01 of the General Conditions of the Contract; (ii) due to non-availability of equipment or material, when the principal units of Work and tasks on the critical path are not in progress or are not delayed by the event of delay, interference, disruption, or hindrance; (iii) when at least seven (7) hours of available working time remain out of the working day; (iv) while materials are drying and it is possible for the Contractor to enclose the area and use drying devices; (v) when an event of delay, interference, disruption, or hindrance occurs on a day other than a working day or other day when the Contractor had not originally planned to work; (vi) when an event of delay, interference, disruption, or hindrance occurs after the expiration of the Contract Time;

(vii) to the extent the Contractor could have anticipated or alleviated the impact of the event of delay, interference, disruption, or hindrance through reasonable efforts; (viii) when events of concurrent delay overlap the claimed delay; and/or (ix) when an extension of time is precluded by any provision of the Contract Documents.

11. QUALIFICATION OF BIDDERS. The apparent most qualified, responsible bidder must submit to Owner, with its Bid, either (i) a fully completed contractor’s statement of qualification or (ii) a written statement that the most recently submitted contractor’s statement of qualification is accurate, which statement of qualification must be considered in the award of the Contract. Failure to accurately complete the contractor’s statement of qualification or to timely submit the statement of qualification will, at Owner’s option, disqualify the bidder from consideration in the award of the Contract. The form of the Contractor’s statement of qualification is available from the Engineer. Owner may reject, at Owner’s sole discretion, a bidder’s statement of qualification if the bidder’s statement of qualification is not on the form provided. Evidence of out-of-state incorporation to conduct business in the state in which the Work is to be performed, along with state contractor license number, must also be provided and is a consideration in the award of the Contract.

12. MODIFICATION AND WITHDRAWAL OF BIDS. Bids may be modified or withdrawn by an appropriate document duly executed (in the manner that a Bid must be executed) and delivered in the same manner as Bids were submitted at any time prior to the opening of Bids. If, within twenty-four (24) hours after Bids are opened, any bidder files a duly signed, written notice with Owner and promptly thereafter demonstrates to the reasonable satisfaction of Owner that there was a material and substantial mistake in the preparation of its Bid despite the exercise of ordinary care, that bidder may withdraw its Bid and the Bid Security will be returned.

13. HOUSE BILL 1295. Provision of Texas Ethics Commission Form 1295 (“TEC Form 1295”) pursuant to Texas Government Code § 2252.908 (the “Interested Party Disclosure Act” or the “Act”): Unless bidder is exempt from such requirements pursuant to Texas Government Code Section 2252.908(c)(4), the Owner may not award the Contract to a bidder unless the bidder has provided to the Owner a completed and signed TEC Form 1295 which has been assigned a certificate number by the Texas Ethics Commission (the “TEC”). Pursuant to the rules prescribed by the TEC, the TEC Form 1295 must be completed online through the TEC’s website, assigned a certificate number, printed, signed, and provided to the Owner. For purposes of completing the TEC Form 1295, the entity’s name is Harris

Instructions to Bidders

County Improvement District No. 18; the contract ID number is M03-25094-00; and the description of goods and services is City Place Drainage Corridor 1 Pond 1 and Pond 3 Expansion Project. Neither the Owner nor its consultants have the ability to verify all of Contractor’s information included in a TEC Form 1295, and neither have an obligation nor undertake responsibility for advising any bidder with respect to the proper completion of the TEC Form 1295. BIDDERS SHOULD SUBMIT THEIR TEC

FORM 1295 WITH THEIR BID. THE CONTRACT WILL NOT BE AWARDED TO A BIDDER

UNLESS A TEC FORM 1295 HAS BEEN COMPLETED BY THE BIDDER.

14. AWARD OF CONTRACT. Owner reserves the right to reject any or all Bids, including without limitation the right to reject any or all nonconforming, non-responsive, unbalanced or conditional Bids and to reject the Bid of any bidder if Owner believes that it would not be in the best interest of the Project to make award to that bidder, whether because the Bid is not responsive or the bidder is unqualified or of doubtful financial ability or fails to meet any other pertinent standard or criteria of Owner. Owner also reserves the right to waive all informalities and defects in bidding, except time of submitting a Bid.

Discrepancies between the multiplication of units and unit prices in a Bid will be resolved in favor of the unit prices. Discrepancies between the indicated sum of any column of figures and the correct sum thereof will be resolved in favor of the correct sum if the correct sum is evident from the face of the Bid.

In evaluating Bids, Owner will consider, among other things, the qualifications of bidders, whether the Bids comply with the prescribed requirements, and such substitutions, alternates, unit prices and other data, as may be requested in the bid form or prior to the notice of award. Alternate bid items will not be considered unless requested in the bid form.

Owner may consider the qualifications and experience of subcontractors, suppliers, and other persons and organizations proposed for the Work. Owner also may consider the operating costs, maintenance requirements, performance data and guarantees of major items of materials and equipment proposed for incorporation in the Work.

Owner may conduct such investigations as Owner deems necessary to assist in the evaluation of any Bid and to establish the responsibility, qualifications and financial ability of bidders, proposed subcontractors, suppliers and other persons and organizations to perform and furnish the Work in accordance with the Contract Documents, to Owner’s satisfaction.

BY SUBMITTING A BID, EACH BIDDER AUTHORIZES OWNER TO PERFORM ALL

INVESTIGATIONS INTO THE BIDDER’S BACKGROUND, CAPABILITIES, PRIOR

EXPERIENCE, AND OTHER FACTORS PERTAINING TO BIDDER’S PERFORMANCE OF THE

WORK, AS OWNER DEEMS NECESSARY IN ITS SOLE DISCRETION, AND FOR THAT

PURPOSE, SUBMISSION OF A BID ACTS AS BIDDER’S SPECIFIC AUTHORIZATION TO

PERSONS AND ENTITIES CONTACTED BY OWNER IN CONNECTION WITH SUCH

INVESTIGATIONS TO PROVIDE OWNER WITH THE INFORMATION REQUESTED BY OWNER

AND TO DISCUSS AND EXPRESS OPINIONS CONCERNING BIDDER. FURTHER, BY

SUBMISSION OF A BID, BIDDER AGREES TO FULLY AND FOREVER WAIVE AND RELEASE

ANY CLAIM (KNOWN OR UNKNOWN) IT HAS OR MAY HAVE AGAINST THE OWNER,

ENGINEER, DEVELOPER AND THEIR RESPECTIVE ATTORNEYS, EMPLOYEES,

CONSULTANTS, REPRESENTATIVES, AND AGENTS (“THE EVALUATING PARTIES”)

ARISING OUT OF OR IN CONNECTION WITH THE: (1) ADMINISTRATION, EVALUATION, OR

RECOMMENDATION (OR LACK THEREOF) OF ANY BID; (2) WAIVER OF ANY

REQUIREMENTS UNDER THE BID DOCUMENTS OR THE CONTRACT DOCUMENTS; AND (3)

ACCEPTANCE OR REJECTION OF ANY BIDS AND AWARD OF THE CONTRACT.

Owner reserves the right to award the Bid, at Owner’s discretion, based on the amount of the total base bid (without including “Extra Unit Price Items” or “alternate” bid items) or on the amount of the total

Instructions to Bidders amount bid (including “Extra Unit Price Items” or “alternate” bid items), or based on any other combination, means or method determined appropriate by Owner.

If the Contract is to be awarded, it will be awarded to the responsible bidder whose evaluation by Owner indicates that the award will be most advantageous to the Owner and result in the best and most economical completion of the Work.

If the Contract is to be awarded, Owner will give the successful bidder a notice of award within thirty (30) days after the day of the Bid opening. All bidders must honor the Contract Price on their bid form, if the Contract is awarded within the timeframe provided herein. A Notice to Proceed will be issued within a reasonable period after the Contract Documents are fully executed.

Within seven (7) calendar days of receipt from the Owner of the notice of award, the successful bidder must submit to the Engineer the payment and performance bonds and all information or other items necessary to complete the Contract Documents, including the required insurance, anticipated construction schedule, and Contractor’s safety program. See SAFETY under Section 5.20 of the General Conditions of the Contract. The successful bidder must return the fully executed Contract Documents to Engineer within seven (7) calendar days of receipt, or Owner may at its sole discretion disqualify the Bid and accept another Bid and the bidder must, at Owner’s option, forfeit its Bid Security.

15. TAXES, LICENSES AND FEES. Certain taxes, licenses, fees, and other similar items are part of the cost of the Work, and it is bidder’s responsibility to familiarize itself with these costs and to observe and comply with the Laws and Regulations relating to same. The prices, sums, rates, and other charges set forth in the bidder’s Bid must cover and include all such costs. Owner is exempt from Texas sales and use taxes pursuant to Texas Tax Code § 151.309 as a political subdivision of the State of Texas. Owner shall provide Contractor, if requested by Contractor in writing, with a completed Texas Sales and Use Tax Exemption Certification as evidence of the applicability of such exemption, as limited by applicable statute. In addition, Contractor, and all subcontractors to Contractor (i) must not include any provision for Texas sales and use taxes with respect to such exempt items in any Bid or the Contract Price, and (ii) must pass on to the Owner cost savings due to the exempt status of such exempt items.

Contractor’s contracts with all subcontractors to Contractor must include the foregoing provision regarding the exemption from Texas sales and use taxes. Contractor must pay taxes on items that are not exempt.

16. NUMBER OF SIGNED SETS OF DOCUMENTS. The Contract Documents will be prepared for signatures, and one (1) set will be delivered to the successful bidder. At the contractor’s request the Owner will provide the successful bidder up to four (4) sets of Plans and Technical Specifications at no cost, and additional sets requested may be obtained from Engineer at Engineer’s reproduction rates.

17. ELECTRONIC COUNTERPARTS; FORM OF BONDS TO BE PROVIDED TO OWNER.

The Contract Documents may be executed and delivered in any number of counterparts, each of which so executed and delivered will be deemed to be an original and all of which will constitute one and the same instrument. Electronic Signatures, as defined by and in accordance with the Owner’s Order Adopting Electronic Signature Rules for Construction Contracts, will be deemed original signatures for purposes of the Contract Documents and all matters related thereto, with such Electronic Signatures having the same legal effect as physical, wet-ink signatures. Owner; Engineer; Contractor; and Developer, if there is a Special Conditions of the Contract Part B, agree that the Contract Documents may be accepted, executed, or agreed to using an Electronic Signature. Any document accepted, executed, or agreed to in conformity with such Order is binding on Owner, Engineer, Contractor, and Developer, if applicable, the same as if it were physically executed, and Owner, Engineer, Contractor, and Developer, if applicable, each hereby consent to the use of any third-party electronic signature capture service provider that may be chosen by Owner or Engineer. Notwithstanding the foregoing, all Bonds must be provided to

Instructions to Bidders

Owner either as a physical, wet-ink original, or in the form of a certified and complete copy of such Bond, which may be provided to Owner in electronic form, such as a .pdf file.

18. INSURANCE. See section entitled “INSURANCE REQUIREMENTS” attached to and incorporated into the General Conditions of the Contract as Attachment A to the General Conditions of the Contract and Special Conditions of the Contract Part B, if attached..

19. SOILS REPORT. If a soils investigation has been made for this Project, the soils report and log of borings is available for bidder’s information only. The report is not a warranty of subsurface conditions, nor is it a part of the Contract Documents. Bidders are expected to examine the Site and such reports and then decide for themselves the soils or conditions that may be encountered.

Owner, Engineer, and Developer, if applicable, disclaim any responsibility for the accuracy, true location and extent of the surface and subsurface investigations that have been prepared by others. Owner, Engineer, and Developer, if applicable, further disclaim responsibility for interpretation of that data by bidder, e.g., projecting soil-bearing values, rock profiles, soil stability and the presence, level and extent of underground water or other underground facilities or utilities.

20. LABOR CLASSIFICATION AND MINIMUM WAGE SCALE.

(A) General: Chapter 2258 of the Texas Government Code provides that any political subdivision of the State of Texas shall determine the general prevailing wage rate received by the classes of workers employed on projects similar to this Project and shall specify in the call for bids and in the Contract Documents the minimum wage rates which must be paid for each type of worker. This statute further provides that the Contractor or subcontractors must pay, as penalty to Owner, Sixty Dollars ($60.00) for each worker employed for each calendar day or part of the day that the worker is paid less than the wage rates stipulated in the Contract. Owner is authorized to withhold from the Contractor the amount of this penalty from any payment due under the Contract Documents.

The statute likewise requires that the Contractor and subcontractors keep an accurate record of the names and occupations of all persons employed by them on the construction of the Project and to show the actual per diem wages paid to each worker. These records are open to the inspection of Owner.

(B) The minimum wage rates that apply to this Contract are specified in Attachment B to the General Conditions of the Contract. Contractor and subcontractors must review and ascertain such wage rates and pay at least such minimum rates.

21. ECONOMIC DISINCENTIVES. The Contractor and the Owner agree that time is of the essence of this Contract. The Contractor and the Owner agree that a breach of this Contract by failure to complete the Work in the specified time will cause harm to the Owner. Therefore, the Contractor and the Owner agree that for each and every calendar day the Work or any portion thereof shall remain uncompleted after the expiration of the time limit(s) set in the Contract, or as extended under the provisions of these General Conditions (including, without limitation, due to a delay caused by Contractor’s failure to comply with the Contract Documents or due to Owner’s termination of Contractor for default under the Contract Documents), Contractor shall be liable to Owner for economic disincentives under Section 49.271(e) of Texas Water Code, in the amount of 0.25% of the total contract amount for each such calendar day. The Owner shall have the option to deduct and withhold said amount from any monies that the Owner owes the Contractor or its sureties or to recover such amount from the Contractor or the sureties on the Contractor’s bond.

Harris County Improvement District No. 18 BID PROPOSAL FORM

05 Bid Proposal Form Page 1 of 3

Date: _____________, 2026

BID PROPOSAL FORM

BID of , an individual proprietorship, a corporation organized and existing under the laws of the State of Texas, or a partnership consisting of for the construction of Harris County Improvement District No. 18 – City Place DC1 Ponds 1 & 3 Expansion.

THIS BID SUBMITTED TO:

Harris County Improvement District No. 18 Attention Robert T. Deden, President, Board of Directors

3200 Southwest Freeway, Suite 2600 Houston, TX 77027

Undersigned Bidder represents and warrants as follows:

1. The undersigned BIDDER proposes and agrees, if this BID is accepted, to enter into an agreement with OWNER in the form included in the Contract Documents to perform and furnish all Work as specified or indicated in the Contract Documents for the Bid Price and within the Bid Times indicated in this BID and in accordance with the other terms and conditions of the Contract Documents. BIDDER accepts the terms of the form of Agreement and the Contract Documents.

2. BIDDER understands and accepts all of the terms and conditions of the Invitation to BID and Instructions to Bidders including without limitation those dealing with the disposition of Bid Security.

This BID will remain subject to acceptance for ninety (90) days after the day of BID opening. If BIDDER is the Successful Bidder, BIDDER will sign and deliver the required number of counterparts of the Agreement with the Bonds and other documents required by the Bidding Requirements within ten (10) calendar days after the date of OWNER’s Notice of Award.

3. In submitting this BID, BIDDER represents and warrants, as more fully set forth in the Agreement, that:

(a) BIDDER has examined and carefully studied the Bidding Documents and Addenda.

BIDDER hereby acknowledges receipt of the following Addenda: (List Addenda by Addendum Number and Date).

Addendum No.: Dated:

(b) BIDDER has visited the site, has conducted all testing at the site BIDDER deems necessary, has become familiar with, has taken into consideration in formulating its BID, and accepts the general, local and site conditions that may affect cost, progress, performance, and furnishing of the Work;

(c) BIDDER is familiar with, has taken into consideration in formulating its BID and accepts all federal, state, and local Laws and Regulations that may affect cost, progress, performance, and furnishing of the Work.

05 Bid Proposal Form Page 2 of 3

(d) BIDDER has carefully studied all reports of explorations and tests of subsurface conditions at, or contiguous to, the site and all drawings of physical conditions in, or relating to, existing surface or subsurface structures at, or contiguous to, the Site.

BIDDER understands, acknowledges, and agrees that technical reports and drawings are not Contract Documents and may not be complete for BIDDER’s purposes.

BIDDER understands, acknowledges, and agrees that OWNER and ENGINEER are not responsible for and make no warranties regarding the accuracy or completeness of information and data shown or indicated in the bidding documents with respect to surface and subsurface conditions and underground facilities at or contiguous to the site. BIDDER has obtained and carefully studied and is responsible for obtaining and studying any and all such additional or supplementary examinations, investigations, explorations, tests, studies, and data concerning conditions (surface, subsurface and underground facilities) at or contiguous to the Site or otherwise which may affect cost, progress, performance or furnishing of the Work, or which relate to any aspect of the means, methods, techniques, sequences, and procedures of construction to be employed by BIDDER, and safety precautions and programs incident thereto as may be necessary. BIDDER does not consider that any additional examinations, investigations, explorations, tests, studies or data are necessary for the determination of this BID for performance and furnishing of the Work in accordance with the times, price, and other terms and conditions of the Contract Documents.

(e) BIDDER is aware of the general nature of work to be performed by OWNER and others at the site that relates to Work for which this BID is submitted as indicated in the Contract Documents.

(f) BIDDER has correlated the information known to BIDDER, information and observations obtained from visits to the site, reports and drawings identified in the Contract Documents, and all additional examinations, investigations, explorations, tests, studies, and data with the Contract Documents.

(g) BIDDER has given ENGINEER written notice of all conflicts, errors, ambiguities, or discrepancies that BIDDER has discovered in the Contract Documents, and the written resolution thereof by ENGINEER is acceptable to BIDDER; BIDDER has no questions regarding the Work; BIDDER has all information necessary to make a fully informed BID; and the Contract Documents are generally sufficient to indicate and convey understanding of all terms and conditions for performing and furnishing the Work for which this BID is submitted.

(h) This BID is genuine and not made in the interest of or on behalf of any undisclosed person, firm, or corporation and is not submitted in conformity with any agreement or rules of any group, association, organization or corporation; BIDDER has not directly or indirectly induced or solicited any other BIDDER to submit a false or sham BID;

BIDDER has not solicited or induced any person, firm, or corporation to refrain from bidding; and BIDDER has not sought by collusion to obtain for itself any advantage over any other BIDDER or over OWNER.

4. BIDDER is duly qualified to carry on business in the State of Texas; possesses or has the ability to possess all licenses, permits, and certificates of authority necessary to commence and to complete the Work in accordance with the Bidding Documents; is fully qualified and has experience in performing work of the same type as the Work covered by the Bidding Documents; and will provide all necessary labor, superintendence, machinery, equipment, tools, materials, services, and other means of construction to complete all work upon which BIDDER bids and complete said work within the time stated and for maintaining same as required for the following prices:

05 Bid Proposal Form Page 3 of 3

SEE BID FORM

Substitutions are not acceptable in the bidding process.

5. The undersigned agrees to commence work on the date when the Contract Time commences to run as provided in the General Conditions, and that the work will be substantially completed, and completed and ready for final payment on or before the dates or within the number of calendar days indicated in the Agreement.

Bidder accepts the provisions of the Agreement as to economic disincentives in the event of failure to complete the Work within the time specified in the Agreement.

6. BIDDER has enclosed with this BID the required Bid Security in the form of a cashier's check or bid bond in the amount of $_______________. BIDDER agrees that this amount is a measure of liquidated damages which OWNER will sustain by failure of the BIDDER to execute and deliver above named Agreement and Bonds, and not a penalty, and further agrees that this Bid Security shall be collected and retained by OWNER as liquidated damages in the event this BID is accepted by OWNER within ninety (90) days after opening of Bids, and BIDDER fails to execute the Agreement and the required Bonds with OWNER within ten (10) calendar days after Contract Documents are received by BIDDER; otherwise said Bid Security shall be returned to the BIDDER in accordance with Paragraph 7 of Section II - Instruction to Bidders.

ATTEST:

By:

(SEAL, if Bidder is Corporation) (Signature)

(Typed or Printed Name)

Title:

Bidder:

(Name of Company)

Address:

Telephone No.:

Surety Company:

Address:

Telephone No.:

HCID No. 18

Harris County Improvements District No. 18 - City Place DC-1 Ponds 1 and 3 Expansion

A. GENERAL ITEMS

Qty Units Item Description Unit Price Extended Total

A 1 1 LS Mobilization

A 2 1 LS Temporaray Erosion Control

A 3 15.5 AC Clearning and Grubbing (Including Up To 12" Tree Removal)

A 4 300 EA Tree Removal (>12'')

A 5 1 LS

Dewatering for Detention Ponds Construction (Including

Dewatering Plans)

A 6 112500 CY Excavation

A 7 112500 CY Haul and Dispose Excess Pond Spoil Materials Off-Site

A 8 49740 SY Clay Liner Construction

A 9 3880 SY Permanent Turf Reinforcement Mat

A 10 700 SY Rock Rip Rap

A 11 19250 SY

Broadcast Seeding Disturbed Area (Including Revegetation Plan and Associated Actitivities)

SUBTOTAL SECTION A

BID FORM

Item No.

HCID No. 18

Harris County Improvements District No. 18 - City Place DC-1 Ponds 1 and 3 Expansion

BID FORM

B. STORM SEWER RE-ROUTE ITEMS

Qty Units Item Description Unit Price Extended Total

B 1 560 LF 36" Reinforced Concrete Pipe

B 2 180 LF 48" Reinforced Concrete Pipe

B 3 750 LF Existing Pipe and Inlet Demolition

B 4 4 EA Junction Box (All Sizes 4'x4', 5'x5', & 6'x6')

B 5 3 EA Safety End Treatment

B 6 1 EA Concrete Collar

SUBTOTAL SECTION B $

BID SUMMARY

SECTION A $

SECTION B $

TOTAL SECTIONS A&B $

CALENDAR DAYS NEEDED FOR SUBSTANTIAL COMPLETION

C. ALTERNATES

Qty Units Item Description Unit Price Extended Total

C 1 50000 CY Stockpile Excess Pond 1 Spoil Materials on Adjacent Property

C 2 62500 LF Stockpile Excess Pond 3 Spoil Materials on Adjacent Property

SUBTOTAL SECTION C $

Item No.

Item No.

Harris County Improvement District No. 18 CONTRACT

Contract 1 of 2 September 2025

CONTRACT

STATE OF TEXAS }

COUNTY OF }

THIS CONTRACT (“Contract”) is made and entered into this _____________________ day of ___________, 20__ by and between Harris County Improvement District No. 18 (the “Owner”) c/o Allen Boone Humphries Robinson LLP, 3200 Southwest Freeway, Suite 2600, Houston, Texas 77027, of Harris County, Texas, and _______________, _____________, of the City of , County of _ _, and State of _____________, hereinafter termed “Contractor.”

All capitalized terms used herein shall be given the meanings set forth in the General Conditions of the Contract. Walter P Moore and Associates, Inc. shall be referred to herein as the “Engineer.”

For and in consideration of the mutual covenants hereinafter set forth, and under the conditions expressed in the Bonds bearing even date herewith, the Contractor and Owner hereby agree as follows:

Contractor shall commence and complete the Work generally described as follows:

Harris County Improvement District No. 18 – City Place DC-1 Ponds 1 & 3 Expansion for Harris County Improvement District No. 18, Harris County, Texas, according to those Plans and Technical Specifications prepared by Engineer in the initial Contract Price of $_______________ and all Extra Work in connection therewith, under the terms as stated in the Contract Documents, and, at Contractor’s own proper cost and expense, to furnish all the materials, supplies, machinery, equipment, tools, superintendence, labor, insurance, and other accessories and services necessary to complete the said Work, in accordance with the conditions and prices stated in the Bid attached hereto and in accordance with the Contract Documents. Contractor represents and warrants to the Owner that it has carefully examined this Contract and all Contract Documents and is thoroughly familiar therewith.

The Contractor hereby agrees to begin work within ten (10) calendar days after the written Notice to Proceed has been given by the Engineer. Contractor hereby also agrees to achieve Substantial Completion of the Work within _______ calendar days after the date of the written Notice to Proceed and to achieve Final Completion of the Work within 30 calendar days after Substantial Completion.

Owner agrees to pay Contractor for completion of the Work in accordance with the Contract Documents for the initial Contract Price of ___________________ ($____________), plus or minus any increases or decreases to the initial Contract Price as provided by the Contract Documents. Contractor will be paid in current funds for the performance of the Contract in accordance with the Bid submitted therefor, subject to additions and deductions as allowed by the Contract Documents and, if applicable, approved by Change Order under the Contract Documents, and to make payments on account thereof as provided therein. If included as Special Conditions of the Contract Part B, the Developer shall act as

“O…