12_HCID1 Penitas PS Bid Package - Specs 20180509.pdf

BID NO.18-003 HIDALGO COUNTY

IRRIGATION DISTRICT NO. 1

PENITAS PUMP STATION AND LEVEE

REHABILITATION PROJECT

BID PACKAGE AND

SPECIFICATIONS

MAY 9, 2018

SDIENGINEERING T B P E L i c e n s e d N o F - 1 3 0 1 6

A L i m i t e d L i a b i l i t y C o m p a n y Civil • Transportation • Planning • Stormwater

5602 E. Iowa Road, Edinburg, Texas 78542 (956) 287-1818 office (956) 287-3697 fax

ADDENDUM NO. 1

DATE: May 15, 2018

RE: HCID#1 – Peñitas Pump Station & Levee Rehabilitation Project

OWNER: Hidalgo County Irrigation District No. 1

TO: ALL PROPOSERS, HOLDERS OF SPECIFICATIONS, AND ALL INTERESTED

PARTIES TO THE HIDALGO COUNTY IRRIGATION DISTRICT NO. 1, PENITAS

PUMP STATION & LEVEE REHABILITATION

BID OPEN: 3:00 P.M. (Central Time), Tuesday, June 19, 2018

The following clarifications, corrections and directives shall become part of the Proposal, Contract Documents and Specifications for HCID#1 – Peñitas Pump Station & Levee Rehabilitation.

REQUEST FOR COMPETITIVE SEALED BIDS

1. Replace REQUEST FOR COMPETITIVE SEALED BIDS Page A-1 with REQUEST FOR

COMPETITIVE SEALED BIDS – REVISED – 1, Page A-1 which includes the following change:

a. Revised BID SECURITY Paragraph – amount of Bid Bond changed to 20%

INSTRUCTION TO BIDDERS

1. Replace INSTRUCTIONS TO BIDDERS Page B-3 with INSTRUCTIONS TO BIDDERS –

REVISED – 1, Page B-3 which includes the following change:

a. Revised 6. Bid Security, Paragraph 1 – amount of Bid Bond changed to 20%

BID PROPOSAL

1. Replace BID PROPOSAL FORM, Pages C-3 to C-5 with BID PROPOSAL FORM –

REVISED – 1, C-3 to C-5 (SEE ATTACHED), which includes the following changes:

a. Revised Paragraph 5 of Page C-3 – Amount of bid security changed to 20%

b. Revised First line on Page C-4 – BIDDERS BOND amount changed to 20%

c. Revised Page C-5 – PROJECT CONTINGENCY line item of 10% added

MEASUREMENT AND BASIS OF PAYMENT

1. Replace MEASUREMENT AND BASIS OF PAYMENT Page D-2 with MEASUREMENT

AND BASIS OF PAYMENT – REVISED – 1, Page D-2 which includes the following change:

a. Addition of Paragraph 11 – adding CONTINGENCY

Please make the necessary corrections to the REQUEST FOR COMPETITIVE SEALED BIDS, INSTRUCTION TO BIDDERS, BID PROPOSAL FORM, and MEASUREMENT AND BASIS OF PAYMENT as appropriate.

PLEASE ACKNOWLEDGE RECEIPT OF THIS ADDENDUM IN THE SPACE PROVIDED

IN THE BID PROPOSAL FORM.

A-1

REQUEST FOR COMPETITIVE SEALED BIDS – REVISED – 1

PROJECT: Bid No. 18-003 – Peñitas Pump Station & Levee Rehabilitation

OWNER: Hidalgo County Irrigation District No. 1 1904 North Expressway 281 Edinburg, Texas 78540

ENGINEER: Lloyd Engineering, Inc.

Attn: Stan Lloyd, P.E.

6565 West Loop S., Suite 708 Houston, Texas 77401

PH: 832-426-4656, FAX: 832-514-7003

BID DEADLINE: Tuesday, June 19, 2018 at 3:00 P.M.

INVITATION: Your firm is invited to submit Competitive Sealed Bids for the construction of 2 – 30 foot long sections of concrete floodwall, modifications to existing roofing and construction of interior and exterior reinforcing walls for the Pump Station and Levee Rehabilitation Project. Competitive Sealed Bids should be submitted to the OWNER at the OWNER’S address indicated above, for the PROJECT described above, on or before the Bid Deadline indicated.

PRE-BID CONFERENCE: A Pre-Bid conference will be conducted at the office of the Hidalgo County Irrigation District No. 1, located at 1904 N. Expressway 281, Edinburg, Texas on Wednesday, May 23, 2018 at 10:00 A. M. It is highly recommended that all prospective bidders should attend.

INSPECTION OF SITE: The site is accessible for inspection upon notification and coordination with the OWNER.

Bidders are highly recommended to visit the site and assess existing conditions.

EVALUATION CRITERIA: The selection criteria for competitive sealed bids shall be, but not limited to, the bidders experience, past performance, safety record, proposed personnel and experience of personnel, and proposed cost.

BID DOCUMENTS: Copies of the Bid Documents, including Drawings, Contract Documents and Technical Specifications may be obtained from the HCID #1 Office for $150.00 non-refundable deposit payable to SDI Engineering, LLC.

BID SECURITY: Bidder’s will be required to provide a Bid Security in the form of a Bid Bond, Certified Check, or Cashier’s Check in the amount of twenty percent (20%) of the largest possible total bid, including consideration of bid alternates, with each proposal. Bid Bonds shall be issued by a Surety acceptable to the OWNER and meeting the requirements of the General Conditions of the Contract. Bid Bonds shall be prepared on forms meeting all the requirement of applicable State of Texas statutes. Failure to provide the Bid Bond with the proposal may constitute a non-responsive proposal and the proposal may not be considered.

PERFORMANCE, LABOR AND MATERIAL PAYMENT BONDS: The successful Bidder will be required to provide 100% Performance, Labor and Materials Payment Bonds in strict conformance with all the requirements of the Contract Documents. Failure to provide required bonds will result in forfeiture of Bid Security.

BIDS WITHDRAWAL: No bid may be withdrawn for a period of ninety (90) days after bid opening date.

OWNER’S RIGHT OF REJECTION: The OWNER reserves the right to waive any informality, or to reject any or all bids.

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INSTRUCTION TO BIDDERS – REVISED - 1

1. Copies of Bidding Documents

Complete sets of the Bidding Documents in the number and for the sum, if any stated in the Notice to Bidders may be obtained from the Issuing Office. The sum will not be refunded to each document holder of record.

Complete sets of Bidding Documents must be used in preparing Bids; neither Owner nor Engineer assume responsibility for errors or misinterpretations resulting from use of incomplete set of bidding Documents.

Owner and Engineer in making copies of Bidding Documents available on the above terms do so only for the purpose of obtaining Bids for the Work and do not offer a license or grant for any other use.

2. Qualifications of Bidders

To demonstrate qualifications to perform the Work, each bidder must be prepared to submit within five (5) days after Bid opening upon Owner's request detailed written evidence such as financial data, previous experience, present commitments and other such data as may be called for in the Bidding Documents.

3. Examination of Contract Documents and Site

It is the responsibility of each Bidder before submitting a Bid: To examine thoroughly the Contract Documents and other related data identified in the Bidding Documents;

To visit the site to become familiar with and satisfy Bidder as to the general, local and site conditions that may affect cost, progress, performance or furnishing of the Work;

To consider federal, state, and local Laws and Regulations that may affect cost progress, performance of furnishing of the Work;

To study and carefully correlate Bidder's knowledge and observations with the Contract Documents and such other related data; and

To promptly notify Engineer of all conflicts, errors, ambiguities or discrepancies which the Bidder has discovered in or between the Contract Documents and such other related documents.

Information and data shown or indicated in the Contract Documents with respect to existing Underground Facilities at or contiguous to the site based upon information and data furnished to Owner and Engineer by owners of such Underground Facilities or others, and Owner and Engineer do not assume responsibility for the accuracy or completeness thereof unless it is expressly provided otherwise in Supplementary Conditions.

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Provisions concerning responsibilities for the adequacy of data furnished to prospective Bidders with respect to subsurface conditions, other physical conditions and Underground Facilities, and possible changes in the Contract Documents due to differing or unanticipated conditions appear in the General Conditions.

Before submitting a Bid each Bidder will be responsible to obtain 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 or procedures of construction to be employed by Bidder and safety precautions and programs incident thereto or which Bidder deems necessary to determine its Bid for performing and furnishing the Work in accordance with the time, price and other terms and conditions of the Contract Documents.

On request, Owner will provide each Bidder access to the site to conduct such examinations, investigations, explorations, tests and studies, as each Bidder deems necessary for submission of a Bid. Bidder must fill all holes and clean up and restore site to its former conditions upon completion of such explorations, investigations, tests and studies or at the end of each day.

The submission of a Bid will constitute an incontrovertible representation by Bidder that Bidder has complied with every requirement of this Article 3, that without exception the Bid is premised upon performing and furnishing the Work required by the Contract Documents and applying the specific means, methods, techniques, sequences or procedures of construction (if any) that may be shown or indicated or expressly required by the Contract Documents, that Bidder has given Engineer written notice of all conflicts, errors, ambiguities and discrepancies that Bidder has discovered in the Contract Documents and the written resolutions thereof by Engineer is acceptable to Bidder, and that the Contract Documents are generally sufficient to indicate and convey understanding of all terms and conditions for performing and furnishing the Work.

4. Availability of Lands for Work

The lands upon which the Work is to be performed, rights-of-way and easements for access thereto and other lands designated for use by the Contractor in performing the Work are identified in the Contract Documents. All additional lands and access thereto required for temporary construction facilities, construction equipment or storage of materials and equipment to be incorporated in the Work are to be obtained and paid for by the Contractor. Easements for permanent structures or permanent changes in existing facilities are to be obtained and paid for by Owner unless otherwise provided in the Contract Documents.

5. Interpretations and Addenda

All questions about the meaning or intent of the Bidding Documents are to be directed to Engineer. Interpretations or clarifications considered necessary by Engineer in response to such questions will be issued by Addenda to all parties recorded by Engineer as having received the Bidding Documents. Questions received less than seven (7) days prior to the date for opening of

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Bids may not be answered. Only questions answered by formal written Addenda will be binding.

Oral or other interpretations or clarifications will be without legal effect.

6. Bid Security

Each Bid must be accompanied by Bid security made payable to the Owner in the amount of twenty (20) percent of Bidder's maximum bid price and in the form of a certified check or Bid Bond issued by a surety meeting the requirements of the Contract Documents and authorized in the State of Texas.

The Bid security of Successful Bidder will be retained until such Bidder has executed the Agreement, furnished the required contract security and met other conditions of the Notice of Award, whereupon the Bid security will be returned. If the Successful Bidder fails to execute and deliver the Agreement and furnish the required contract security within fifteen days after Notice of Award, Owner may annul the Notice of Award and the Bid security of that Bidder will be forfeited. The Bid security of the other Bidders whom the Owner believes to have a reasonable chance of receiving the award may be retained by Owner until the earlier of the seventh day after the Effective Date of the Agreement, whereupon Bid security furnished by such Bidders will be returned.

7. Contract Times

The number of days within which, or the dates by which, the Work is to be substantially completed and ready for final payment are set forth in the Agreement or incorporated therein by reference to the attached Bid Form.

8. Liquidated Damages

There are no liquidated damages on this project.

9. Substitute and "Or-Equal" Items

The Contract, if awarded, will be on the basis of materials and equipment described in the Drawings or specified in the Specifications without consideration of possible substitute or "or-equal" items. Whenever it is indicated in the Drawings or specified in the Specifications that a substitute or "or-equal" item of material or equipment may be furnished or used by Contractor if acceptable to Engineer, application for such acceptance will not be considered by Engineer until after the Effective Date of the agreement. The procedure for submission of any such application by Contractor and consideration by Engineer is set forth in the General Conditions.

10. Subcontractors, Suppliers and Others

Within ten (10) days after Bid opening, the Contractor shall submit to the Owner a list of all Subcontractors, Suppliers, and other persons and organizations (including those who are to furnish the principal items of material and equipment) proposed for the Project. Such list shall be accompanied by an experience statement with pertinent information regarding similar projects

B-4 and other evidence of qualification for each such Subcontractor, Supplier, person or organization. The Owner or Engineer, who after due investigation, has reasonable objection to any proposed Subcontractor, Supplier, other person or organization, may request the apparent Successful Bidder provide an acceptable substitute without an increase in Bid price before the Notice of Award is given.

If the apparent Successful Bidder declines to make any such substitution, Owner may award contract to the next lowest Bidder that proposes to use acceptable Subcontractors, Suppliers and other persons and organizations. The declining to make requested substitutions will not constitute grounds for sacrificing the Bid security of any Bidder. Any Subcontractor, Supplier, other person or organization listed and to whom Owner or Engineer does not make written objection prior to the giving of the Notice of Award will be deemed acceptable to Owner and Engineer, subject to revocation of such acceptance after the Effective date of the Agreement as provided in the General Conditions.

11. Bid Form

The Bid Form is included with the Bidding Documents; additional copies may be obtained from the Engineer.

All blanks on the Bid Form must be completed by printing in black ink or by typewriter.

Bids by corporations 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). The corporate address and state of incorporation must be shown below the signature.

Bids by partnerships must be executed in the partnership name and signed by a partner, whose title must appear under the signature and the official address of the partnership must be shown below the signature.

All names must be typed or printed in black ink below the signature.

The Bid shall contain an acknowledgement of receipt of all Addenda the numbers of which must be filled in on the Bid Form.

The address and telephone number of communications regarding the Bid must be shown.

Evidence of authority to conduct business as an out-of-state corporation in the State of Texas where the Work is to be performed shall be provided in accordance with above.

12. Submission of Bids

Bids shall be submitted at the time and place indicated in the Notice to Bidders and shall be enclosed in an opaque sealed envelope, marked with the Project title and name and address of Bidder and accompanied by the Bid security and other required documents. If the Bid is sent through mail or other delivery system the sealed envelope shall be enclosed in a separate

B-5 envelope with the notation "BID ENCLOSED" on the face of it.

13. Modifications and Withdrawal of Bids

Bids may be modified or withdrawn by an appropriate document duly executed (in a manner that a Bid must be executed) and delivered to the place where Bids are to be submitted at any time prior to the opening of Bids.

All Bids opened and read aloud will not be withdrawn or modified.

14. Bids to Remain Subject to Acceptance

All Bids will remain subject to acceptance for ninety (90) days after the day of the Bid opening, but Owner may, in its sole discretion, release any Bid and return the Bid security prior to that date.

15. Award of Contract

Owner reserves the right to reject any or all Bids, including without limitation the rights 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 an 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 established by the Owner. Owner also reserves the right to waive all informalities not involving price, time or changes in Work and to negotiate contract terms with the Successful Bidder. Discrepancies between the indicated sum of any column of figures and the correct sum thereof will be resolved in favor of the correct sum. Discrepancies between words and figures will be resolved in favor of the words. Discrepancies between the unit price and the indicated sum of any column of figures, the unit price shall prevail. In evaluating Bids, Owner will consider the qualifications of Bidders, whether or not the Bids comply with the prescribed requirements, and such alternates, unit prices and other data, as may be requested in the Bid Form or prior to the Notice of Award.

Owner may consider the qualifications and experience of Subcontractors, Suppliers, and other persons and organizations proposed for those portions of the Work as to which the identity of Subcontractors, Suppliers, and other persons and organizations is required.

Owner may also consider the operating costs, maintenance requirements, performance data and guarantees of major items of materials and equipment proposed for incorporation in the Work when such data is required to be submitted prior to Notice of Award.

If contract is to be awarded, it will be awarded to the lowest Bidder whose evaluation by Owner indicates to Owner that the award will be in the best interest of the Project.

16. Contract Security

The General Conditions and the Supplementary Conditions sets forth the Owner's requirements

B-6 as to performance and payment Bonds. When the successful Bidder delivers the executed Agreement to Owner, it must be accompanied by the required performance and payment Bonds.

17. Signing of Agreement

When Owner gives a Notice of Award to the Successful Bidder, it will be accompanied by the required number of unsigned counterparts of the Agreement with all other written Contract Documents attached. Within fifteen (15) days thereafter Contractor shall sign and deliver the required number of counterparts of the Agreement and attached documents to Owner with the required Bonds. Thereafter Owner shall deliver five (5) fully signed counterparts to Contractor, during the Preconstruction Conference. Each counterpart is to be accompanied by a complete set of Drawings with appropriate identification.

18. Pre-bid Conference

A pre-bid conference will be held at the location designated on the Notice to Bidders.

Representatives of Owner and Engineer will be present to discuss Project. Bidders are encouraged to attend and participate in the conference. Engineer will transmit to all prospective Bidders of record such Addenda as Engineer considers necessary in response to questions arising at the conference. Oral statements may not be relied upon and will not be binding or legally effective.

19. Sales and Use Taxes

The Bidder's attention is directed to the State of Texas Comptroller of Public Accounts Limited Sales Excise and Use Tax Rules and Regulations, paragraph 3, of Ruling No.9, Repairmen and Contractors (amended April 3,1972). Reference Article 20.01 (T). Upon compliance with certain conditions this ruling provides for exemption for this tax of materials incorporated into work done for an exempt agency under a contract. The Owner is an exempt agency.

Any Bidder may elect to exclude this sales tax from his bid. If the Bidder submitting the lowest acceptable Bid for performing the Work on this Project elects to comply with the above ruling on any item included in this contract by obtaining any necessary permit or permits from the State of Comptroller allowing the purchase of material incorporation into this Project without having to pay the Limited Sales, Excise and Use Tax at the time of purchase, Bidder shall upon award of contract submit statement in satisfactory form in which his Bid prices to the Owner for materials are listed separately from all other charges, either by Bid item or by total as required by the Comptroller. This statement shall be included in and made a part of the contract.

The Owner will furnish the Bidder with its exemption certificate for those materials incorporated in the project for which the above required statement is submitted.

The Owner will make no further allowance for and will make no price adjustment above or below the originally Bid unit price on account of tax. It shall be the Bidder's sole responsibility, if he/she elects to exclude the sales tax from his/her bid, to comply with the aforementioned ruling No.9 and with any other applicable rules, regulations, or laws pertaining to the Texas

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Limited Sales, Excise and Use Tax which may now or at any time during the performance of this contract be in effect, and the Owner shall have no responsibility for any sales or use tax which the Bidder may be required to pay as the result of his failure or the Owner's failure to comply with said rules, regulations or laws, or as the result of the performance of the contract or any part thereof by the Bidder.

Bidders are cautioned that materials, which are not permanently incorporated into the work, are not eligible for exemption and are not to be included in the statement as "Materials" (example:

fuels, lubricants, tools, forming materials, etc.).

The Bidder shall make his own determination as to tax liabilities for purchases made in other states.

20. Guarantee

The Bidder shall guarantee the work for a period of one (1) year after date of acceptance in writing by the Owner. During this period, the Contractor shall make any repairs and/or replacements of defective materials and corrections due to poor workmanship, all as may be required for full compliance with the Contract Documents. This guarantee shall apply to all matters reported by the Owner in writing within the said one (1) year period and this guarantee shall be covered by the extension of the Performance Bond.

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BID PROPOSAL FORM – REVISED – 1

BID NO. 18-003 HCID NO. 1 PENITAS PUMP STATION & LEVEE REHABILITATION PROJECT

EDINBURG, TEXAS

MR. BOBBY "RUSTY" MCDANIEL

GENERAL MANAGER

HIDALGO COUNTY IRRIGATION DISTRICT NO. 1

1904 NORTH EXPRESSWAY 281

EDINBURG, TEXAS 78540

The undersigned, as bidder(s), declares that the only person or parties interested in this proposal as principals are those named herein, that this proposal is made without collusion with any other person, firm or corporation; that he has carefully examined the Form of Contract, Notice to Bidders, General Conditions, Supplementary General Conditions, Measurement and Basis of Payment, specifications and the plans thereon referred to, and has carefully examined the locations, and conditions and classes of materials of the proposed work; and agrees that he will provide all the necessary labor, machinery, tools, and apparatus, and other items incidental to construction, and will do all the work and furnish all the materials called for in the contract and specifications in the manner prescribed therein and according to the requirements of the Engineer as therein set forth.

It is understood that the following quantities of work to be done at unit prices are approximate only and are intended principally to serve as a guide in evaluating bids.

It is further agreed that the quantities of work to be done at unit price and materials to be furnished, may be increased or diminished as may be considered necessary, in the opinion of the Engineer, to complete the work fully as planned and contemplated, and that all quantities of the work, whether increased or decreased, are to be performed at the unit prices set forth below except as provided for in the specifications.

It is further agreed that lump sum prices may be increased to cover additional work ordered by the Engineer, but not shown on the plans or required by the specifications, in accordance with the provisions of the General Conditions. Similarly, they may be decreased to cover deletion of work so ordered.

The 20% bid security accompanying this proposal shall be returned to the bidder, unless in case of the acceptance of the proposal the bidder shall fail to execute a contract and file a performance bond and payment bond within the ten (10) days after its acceptance, in which case the bid security shall become the property of the OWNER, and shall be considered as payment for damages due to delay and other inconveniences suffered by the Owner on account of such failure of the bidder. It is understood that the Owner reserves the right to reject any or all bids.

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ORIGINAL BID PROPOSAL FORM MUST BE SUBMITTED ALONG WITH THE BID AND CONTRACT

DOCUMENTS BOOKLET

BIDDERS BOND in the amount of $______________,(20%) of the greatest amount bid in compliance with the INSTRUCTION TO BIDDERS.

The above Cashiers Check or Bidder’s Bond is to become the property of the OWNER, in the event the construction contract (when offered by the Owner) and bonds are not executed within the time set forth.

IMPORTANT NOTE:

For information regarding the method UNIT ITEMS are to be MEASURED AND PAID, please refer to the “MEASUREMENT AND BASIS OF PAYMENT” Section attached and made part of this Proposal.

THIS FACILITY IS A 24/7 OPERATION. ALL WORK SHOULD BE BID AND PERFORMED IN A MANNER

THAT WILL ALLOW OPERATIONS TO CONTINUE DURING CONSTRUCTION. ALL COSTS OF

ALTERNATIVE POWER SOURCES OR BYPASSES DURING MODIFICATIONS SHOULD BE INCLUDED

WITHIN YOUR BID AMOUNT AND MUST ALLOW PUMPING TO CONTINUE PROVIDING THE REQUIRED

WATER VOLUME NEEDS OF THE DISTRICT.

BASE BID

Item No.

Estimated Quantity

Unit Item Description Unit Price Total

1. 1 LS

Mobilization including insurance and bond costs, all complete, per lump sum (LS) for

2. 1 LS

Remove, recoat, and reinstall roof structure & all appurtenances including replacing roof panels, all complete in place, per lump sum (LS) for

3. 2 EA

Levees (30 LF), piers, sheetpile wall, including connections to pump building and site work. All complete in place, per each (EA) for

4. 1 LS

Remove timber and utilities including temporary connections for continued operation with weather protection. All complete in place, per lump sum (LS) for

5. 1 LS

Relocate and reconnect utilities for fully functional pump station. All complete in place, per lump sum (LS) for

6. 1 LS

Modify floor pans and floor pans’ support structure and reinstall. All complete in place, per lump sum (LS) for

7. 5000 SF

Recoat exterior of building including blasting and patch areas of exposed rebar. All complete in place, per square foot (SF) for

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8. 1 LS

Structurally rehabilitate all 4 pump station walls including additional top wall addition plus protective coating application to interior walls. All complete in place, per lump sum (LS) for

9. 1 LS

Storm water pollution prevention plan including erosion control devices in accordance with the SWPPP and construction plans. All complete in place per lump sum (LS) for

10. 1 LS

Exhaust pipe modifications including steel pipe support and isolation kits. All complete in place, per lump sum (LS) for

TOTAL BID IMPROVEMENTS: (Items 1-10)$

PROJECT CONTINGENCY

Item No.

Estimated Quantity

Unit Item Description Unit Price Total

11. 1 LS

Contingency – To be used for any additional items required for the Project, subject to the Owner’s authorization and written approval of mutually agreed upon amounts prior to use, per Lump Sum (LS) for

10% of Total Bid Improve-ments

TOTAL CONTINGENCY: (Items 11) $

TOTAL PROJECT AMOUNT: (Items 1-11) $

The undersigned agrees, unless hereinafter stated otherwise to furnish all materials as shown and specified in the Plans and Specifications.

Bidder hereby agrees to commence work under this contract within 10 days after “NOTICE TO PROCEED” is issued, and to complete all the work in the Contract within 365 Calendar Days.

The undersigned bidder acknowledges the receipt of the following addenda:

DATE:

ADDENDUM NO. DATE BY

ADDENDUM No. 1 ADDENDUM No. 2 ADDENDUM No. 3 ADDENDUM No. 4

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BY:

(Signature)

(Type or Print Name)

(Title)

(Company)

(Address)

(City, State, Zip)

(Phone Number)

(Fax Number)

(E-mail Address)

(Seal – If Bidder is a Corporation)

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MEASUREMENT AND BASIS OF PAYMENT – REVISED – 1

1.00 GENERAL

IT IS THE INTENT OF THIS CONTRACT TO COVER ALL THE WORK TO BE PERFORMED

SUBSIDIARY TO ALL THE ITEMS INCLUDED IN THE BID AND SUCH PRICES SHALL BE BALANCED

INDIVIDUALLY AND SHALL INCLUDE FURNISHING ALL MATERIALS, SUPERINTENDENCY,

SUPERVISION, CONSTRUCTION SURVEYING AND LAYOUT, LABOR, INSURANCE, BONDS,

BENEFITS, MACHINERY, FUEL, VEHICLES, SAFETY EQUIPMENT, ADMINISTRATIVE COSTS,

QUALITY CONTROL, GUARANTEES AND WARRANTIES, OVERHEAD, AND ALL INCIDENTALS

FOR COMPLETING THE ASSIGNED WORK IN ACCORDANCE WITH THE PLANS AND

SPECIFICATIONS COMPLETE IN PLACE. IN CASE THE FOLLOWING MEASUREMENT AND BASIS

OF PAYMENT DESCRIPTIONS CONFLICT WITH THE CORRESPONDING DESCRIPTIONS

CONTAINED WITHIN THE TECHNICAL SPECIFICATIONS FOR THIS PROJECT, THE FOLLOWING

DESCRIPTIONS SHALL GOVERN.

THE FOLLOWING APPLICABLE ITEMS SHALL BE CONSIDERED AS PAY ITEMS. ALL OTHER

WORK ON PLANS AND SPECIFICATIONS NOT SPECIFICALLY LISTED OR INDICATED BELOW

SHALL BE SUBSIDIARY TO THE OVERALL COST OF THE PROJECT. ALL EXCAVATION IS

UNCLASSIFIED.

THIS FACILITY IS A 24/7 OPERATION. ALL WORK SHOULD BE BID AND PERFORMED IN A

MANNER THAT WILL ALLOW OPERATIONS TO CONTINUE DURING CONSTRUCTION. ALL

COSTS OF ALTERNATIVE POWER SOURCES OR BYPASSES DURING MODIFICATIONS SHOULD

BE INCLUDED WITHIN YOUR BID AMOUNT AND MUST ALLOW PUMPING TO CONTINUE

PROVIDING THE REQUIRED WATER VOLUME NEEDS OF THE DISTRICT.

1. MOBILIZATION INCLUDING INSURANCE AND BOND COSTS: When called for in the proposal shall be measured and paid for per LUMP SUM (LS) and shall include all clearing, grubbing, tree, rock and shrub removal and disposal, fine grading including site restoration and cleanup, demolition and disposal of existing unused structures, and preservation of active structures. The removal and haul-off of concrete rip-rap and rocks, soil, brush, trees, etc., as well as demobilization shall be subsidiary to this bid item.

2. REMOVE, RECOAT AND REINSTALL ROOF STRUCTURE: When called for in the proposal, shall be measured and paid per LUMP SUM (LS) and shall include all costs associated with the modifications, recoating and reinstallation and replacement of roof panels.

3. LEVEE SECTIONS: When called for in the proposal, shall be measured and paid per

EACH (EA.) and shall include all labor, material and equipment required for the construction of the levee walls, including the installation of sheet piling, shoring, installation of other protective measures to prevent damage to adjacent structures, connections to building, site work, etc. Close coordination with the District and other governmental agencies is required.

4. REMOVE TIMBER AND UTILITIES: When called for in the proposal, shall be measured and paid for per LUMP SUM (L.S.) and shall include all subsidiary items (alternate electrical connections, power sources, and bypasses, etc.). Electrical services should be maintained during construction to allow pumping to continue providing the

D-2 needed flows and volumes required by the District. Close coordination with the District is Required.

5. RELOCATE AND RECONNECT UTILITIES: When called for in the proposal, shall be measured and paid per LUMP SUM (L.S.) and shall include all costs associated with the relocation and reconnection of utilities, alternate electrical connections, power sources and bypasses. Electrical services should be maintained during construction to allow pumping to continue providing the needed flows and volumes required by the District. Close coordination with the District is Required.

6. MODIFY FLOOR PANS AND SUPPORT STRUCTURES: When called for in the proposal, shall be measured and paid per LUMP SUM (L.S.) and shall include all costs of material, labor, equipment and installation required to modify floor pans and floor pan supports.

7. RECOAT EXTERIOR: When called for in the proposal, shall be measured and paid for per SQUARE FOOT (S.F.) and shall include all costs of material, labor, equipment and installation required for sand blasting, patching of damaged areas, patching of exposed rebar, and recoating of exterior.

8. STRUCTURAL PUMP STATION WALL REHABILITATION: When called for in the proposal, shall be measured and paid per LUMP SUM (L.S.) and shall include all costs of material, labor and installation, addition of top wall, and protective coating

9. STORMWATER POLLUTION PREVENTION PLAN (SWPPP): When called for in the proposal, shall be measured and paid per LUMP SUM (L.S.), and shall include all necessary plan preparation as required by the City, County, State and Federal guidelines. Plan shall include, but not be limited to, Site Evaluation, Assessment, Planning, Erosion and Sediment Control Best Management Practices (BMPs), Post Construction BMPs, Inspections, Recordkeeping and Training and Final Stabilization. Plan must be submitted and approved by appropriate regulatory agency and shall include preparation and filings of Notice of Intent (NOI), Notice of Change (NOC) and Notice of Termination (NOT). Contractor shall include all fees required by the regulatory agency. The cost of erosion control devices shall be subsidiary to this bid item and shall include all necessary installation of devices such as construction entrances/exits, silt fences, inlet sediment control screens as required and in accordance with requirements under the Stormwater Pollution Prevention Plan (SWPPP). This item shall also include seeding and temporary watering for re-establishment of post-construction erosion control along all earthen embankments and all other areas affected by construction within 30 days of completion of project.

10. EXHAUST PIPE MODIFICATIONS: When called for in the proposal, shall be measured and paid per LUMP SUM (L.S.) and shall include all costs of material, labor and installation including steel pipe supports and isolation kits.

11. CONTINGENCY: When called for in the proposal, shall be measured and paid per LUMP SUM (L.S.), and shall be subject to the Owner’s authorization and written approval of mutually agreed upon amounts prior to use.

END OF SECTION

A L i m i t e d L i a b i l i t y C o m p a n y Civil • Transportation • Planning • Stormwater

ADDENDUM NO. 2

DATE: May 30, 2018

The following clarifications, corrections and directives shall become part of the Proposal, Contract Documents and Specifications for HCID#1 – Peñitas Pump Station & Levee Rehabilitation.

PLANS AND SPECIFICATIONS

1. The Geotechnical Engineering Report for the Edinburg Pump Station by Terracon Engineering dated July 14, 2017 is attached.

CLARIFICATIONS

2. Payments will be processed by the IBWC within 45 calendar days of receipt of the pay application.

3. There is no requirement in the MOA stating that a full-time dedicated Safety Health officer is required.

4. There is no requirement in the MOA stating that a full-time on-site lab is required.

5. Bollard documentation answer pending.

BUDGET RANGE

6. The Budget range of this project is between $1,000,000 and $5,000,000.

PAYMENT as appropriate.

Geotechnical Engineering Report Edinburg Pump Station

Peñitas, Texas

July 14, 2017 Terracon Project No. 88175109

Prepared for:

Lloyd Engineering, Inc.

Houston, Texas

Prepared by:

Terracon Consultants, Inc.

Pharr, Texas

TABLE OF CONTENTS

Page

EXECUTIVE SUMMARY ............................................................................................................. i

1.0 INTRODUCTION

2.0 PROJECT INFORMATION

Project Description Site Location and Description

3.0 SUBSURFACE CONDITIONS

Typical Profile Permeability Test Results Groundwater

4.0 RECOMMENDATIONS FOR DESIGN AND CONSTRUCTION

Seepage Analyses

5.0 GENERAL COMMENTS

APPENDIX A – FIELD EXPLORATION

Exhibit A-1 Site Location Exhibit A-2 Exploration Plan Exhibit A-3 Field Exploration Description

Exhibits A-4 and A-5 Boring Logs

APPENDIX B – LABORATORY TESTING

Exhibit B-1 Laboratory Testing

APPENDIX C – SEEPAGE ANALYSIS

APPENDIX D – SUPPORTING DOCUMENTS

Exhibit D-1 General Notes Exhibit D-2 Unified Soil Classification System Exhibits D-3 and D-4 Drawings Provided by the Client

Edinburg Pump Station ■ Peñitas, Texas July 14, 2017 ■ Terracon Project No. 88175109

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EXECUTIVE SUMMARY

A geotechnical exploration has been performed for the existing Edinburg Pump Station in Peñitas, Texas. A previous geotechnical study performed by URS Group, Inc. for the levee system adjacent to the pump station indicated variable soil conditions in the area, and recommended that a cement bentonite slurry cutoff wall be constructed to reduce exit gradients at the downstream levee toe.

Based on information provided by Lloyd Engineering, we understand that the pump station has existing wingwall foundations extending ten feet from the exterior pump station wall with a bottom elevation of approximately +95 feet, which inhibits the construction of the cement bentonite slurry cutoff wall in this area. The purpose of this study was to evaluate the need for the cement bentonite slurry wall beneath the existing pump station, specifically beneath the existing wingwall foundations adjacent to the western exterior pump station wall.

Based on the information obtained from our subsurface exploration, the site can be developed for the proposed project. The following geotechnical considerations were identified:

Groundwater was observed in the borings between 30 and 42 feet below existing grade during drilling. After a monitoring period of about 15 minutes, groundwater was observed between 27 and 37½ feet below existing grade.

The subsurface soils at this site generally consist of Lean Clay (CL) underlain by Fat Clay (CH), Clayey Sand (SC) and Silty Sand (SM).

A seepage analysis was conducted for flow beneath the existing pump station wingwall foundation. The computed factors of safety associated with this analysis are greater than the United States Army Corps of Engineers minimum requirements without the need for a cement bentonite slurry cutoff wall beneath the existing pump station wingwall foundation.

This summary should be used in conjunction with the entire report for design purposes. It should be recognized that details were not included or fully developed in this section, and the report must be read in its entirety for a comprehensive understanding of the items contained herein. The section titled GENERAL COMMENTS should be read for an understanding of the report limitations.

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GEOTECHNICAL ENGINEERING REPORT

EDINBURG PUMP STATION

PEÑITAS, TX

Terracon Project No. 88175109

July 14, 2017

1.0 INTRODUCTION

Terracon is pleased to submit our geotechnical engineering report prepared for the existing Edinburg Pump Station in Peñitas, Texas. The purpose of this report is to describe the subsurface conditions observed at the boring locations for this project, analyze and evaluate the test data, and provide recommendations with respect to:

subsurface soil condition;

groundwater conditions; and seepage analysis to evaluate the need for a cement bentonite slurry cutoff wall beneath the existing pump station.

A global stability analyses of the planned improvements was not requested and is not within the scope of services for this report.

2.0 PROJECT INFORMATION

Project Description

Item Description

Planned improvements A cement bentonite slurry cut-off wall adjacent to and possibly beneath the existing pump station.

Site Location and Description

Item Description

Location The project is located at the existing Edinburg Pump Station in Peñitas, Texas.

Existing conditions

Existing levees and a pump station with existing wing wall foundations extending ten feet from the exterior pump station wall with a bottom elevation of approximately +95 feet.

Current ground cover Grass, weeds, and exposed subgrade.

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3.0 SUBSURFACE CONDITIONS

Typical Profile

Based on the results of the borings, subsurface conditions on the project site can be generalized as follows:

Stratum Approximate Depth1 Material Observed Consistency / Density

1 0 to 6½ Lean Clay (CL), with sand, brown Stiff to very stiff

2 0 to 53½

Fat Clay (CH), brown to light yellowish-brown, with interbedded

Clayey Sand (SC), sand and gravel seams

Clays – medium stiff to hard

Clayey sand – dense

3 53½ to 90

Silty Sand (SM), light brown to yellowish-brown, with interbedded Fat Clay (CH), Clayey Sand (SC) and scattered gravel seams

Sands – medium dense to very dense Clays – hard

1. Below existing grade at the time of drilling activities

Conditions observed at individual boring locations are indicated on the boring logs. Stratification boundaries on the boring logs represent the approximate location of changes in soil types; in-situ, the transition between materials may be gradual. Details for the boring locations can be found on the boring logs in Appendix A of this report.

The highly permeable soils observed in nearby borings as part of the previous study performed by URS Group, Inc. (primarily silty sand and gravel) were not observed at the boring location performed as part of this study.

Permeability Test Results

The measured permeability values from the constant head (ASTM 2434) and falling head permeability tests (ASTM D 5084) are provided in the following table.

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Permeability Test Results

Boring

No.

Depth1

(ft) Soil Description

Method

Followed

Vertical Permeability

(cm/s) (ft/s)

B-1 6 – 8 Fat Clay (CH) Falling Head

(ASTM D 5084)

3.4 x 10-8 1.1 x 10-9

B-1 8 – 10 Fat Clay (CH) Falling Head

(ASTM D 5084)

1.3 x 10-8 4.3 x 10-10

B-3 8 – 10 Fat Clay (CH) Falling Head

(ASTM D 5084)

2.2 x 10-8 7.2 x 10-10

B-3 13 – 15 Fat Clay (CH) Falling Head

(ASTM D 5084)

3.0 x 10-8 9.8 x 10-10

B-3 18 – 20 Fat Clay (CH) Falling Head

(ASTM D 5084)

5.5 x 10-9 1.8 x 10-10

B-3 23 – 25 Fat Clay (CH) Falling Head

(ASTM D 5084)

3.3 x 10-9 1.1 x 10-10

B-3 28 – 30 Fat Clay (CH) Falling Head

(ASTM D 5084)

3.2 x 10-9 1.0 x 10-10

1. Approximate depth below existing grade at the time of our field activities.

Groundwater

The borings were advanced using dry auger drilling techniques to depths of between 30 and 40 feet below existing grade in an effort to evaluate groundwater conditions at the time of our field program. Wash rotary techniques were used thereafter to the termination depths of the borings (approximately 90 feet below existing grade). The observed groundwater measurements are summarized in the following table.

Summary of Short-term Groundwater Information

Boring No.

Approximate Groundwater Depth (feet)

While advancing the boring After 15 minutes

B-1 30 27

B-2 42 37½

These groundwater level observations provide an indication of groundwater conditions present at the time the borings were drilled. Groundwater level fluctuations occur due to seasonal variations in the amount of rainfall, runoff and other factors not evident at the time the borings were

Responsive ■ Resourceful ■ Reliable 4 performed. Groundwater seepage is often encountered at or near the surface and within seams and fissures in the limestone. Perched water can also be present in the existing fills. Therefore, groundwater levels during construction or at other times in the life of the structure may be different from the conditions encountered in the borings. The possibility of groundwater level fluctuations should be considered when developing the design and construction plans for the project.

4.0 RECOMMENDATIONS FOR DESIGN AND CONSTRUCTION

The following recommendations are based upon the data obtained in our field and laboratory programs, project information provided to us, and on our experience with similar subsurface and site conditions.

Seepage Analyses

The scope of this study is specific to the soil immediately adjacent to and beneath the existing pump station. Based on information provided by Lloyd Engineering, the previous study completed by URS Group, Inc. addressed the levee and provided recommendations for a cement bentonite slurry cutoff wall up to 50 feet from the edge of the existing pump station. We understand that the cutoff wall is planned to be reconstructed as recommended in the URS study up to the outside edge and above the existing wingwall foundations up to the exterior wall of the pump station, but not beneath the existing wingwall foundations.

Seepage analyses was performed for the existing improvements using finite element methods.

The water level during the future conditions was assumed to be at the specified 100-year flood elevation for the river (+133.8 ft). The water level was assumed to occur for a time period of such duration that steady state seepage conditions could develop in the dam and foundation soils.

The permeability of the foundation soils was estimated from correlations with index properties and laboratory permeability test results which were performed under controlled conditions on small soil samples. The results of the permeability testing are presented the “3.2 Permeability Test

Results” section of this report. To account for the macro-scale in the field and for the anticipated flow anisotropy, the following permeability values were utilized in the seepage analyses. These values were selected based on the results of our field and laboratory program for B-1, our experience with similar soils, the geologic history of the soil deposits, and hydraulic conductivity values reported in literature for similar geologic conditions. The soil conditions observed at boring B-3 were less permeable than the soil conditions observed at boring B-1, based on the presence of a clayey sand layer at a depth of about 23½ to 38½ feet in boring B-1 that was not observed in boring B-3. For the purposes of our analyses, the existing wingwall foundation and planned flood wall were assumed to be impermeable.

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A seepage analysis was performed utilizing SLIDE® to calculate the following quantities for the 100-year Design Flood Elevation that was provided by Lloyd Engineering:

Seepage flow within clayey sand soils beneath the existing wingwall foundation Discharge velocity beneath the toe of the levee Exit gradient beneath the toe of the levee

The cross section analyzed is included in Appendix C. The calculated parameters are summarized in the following table.

Summary of Seepage Analyses Results

Seepage Flow1 (ft3/s) Exit Gradient2

Discharge Velocity2

(ft/s) Foundation

5.0 x 10-9 0.44 2.6 x 10-10

1. Through a vertical section beneath the existing wingwall foundation.

2. At a depth 0.5 feet beneath the ground surface at toe of the levee.

Based on the requirements provided in United States Army Corps of Engineers Engineering Manual 1110-2-2502, the exit gradient at the toe of the levee should not exceed 0.5. Our analysis indicates that the depth of the existing pump station wingwall is sufficient to meet the required maximum exit gradient. Based our analysis, a cement bentonite slurry cutoff wall is not required beneath the existing pump station or the associated wingwall foundations.

5.0 GENERAL COMMENTS

Terracon should be retained to review the final design plans and specifications so comments can be made regarding interpretation and implementation of our geotechnical recommendations in the design and specifications. Terracon also should be retained to provide observation and

Soil Permeability Values Used in Seepage Analyses

Material Permeability

Vertical (cm/s) Horizontal (cm/s)

Lean Clay 1.0 x 10-6 1.0 x 10-5

Fat Clay 1.0 x 10-8 4.0 x 10-8

Clayey Sand 1.0 x 10-6 2.0 x 10-6

Fat Clay 1.0 x 10-7 2.0 x 10-6

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The analysis and recommendations presented in this report are based upon the data obtained from the borings performed at the indicated locations and from other information discussed in this report. This report does not reflect variations that may occur between borings, across the site, or due to the modifying effects of weather. The nature and extent of such variations may not become evident until during or after construction. If variations appear, we should be immediately notified so that further evaluation and supplemental recommendations can be provided.

The scope of services for this project does not include either specifically or by implication any environmental or biological (e.g., mold, fungi, bacteria) assessment of the site or identification or prevention of pollutants, hazardous materials or conditions. If the owner is concerned about the potential for such contamination or pollution, other studies should be undertaken.

This report has been prepared for the exclusive use of our client for specific application to the project discussed and has been prepared in accordance with generally accepted geotechnical engineering practices. No warranties, either express or implied, are intended or made.