W912EP18R0048_Amendment_0003.pdf

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore changed, remains unchanged and in full force and effect.

15A. NAME AND TITLE OF SIGNER (Type or print)

30-105-04EXCEPTION TO SF 30

APPROVED BY OIRM 11-84

STANDARD FORM 30 (Rev. 10-83) Prescribed by GSA

FAR (48 CFR) 53.243

Guajataca Dam Spillw ay and Channel Reinforcement, Isabella and Quebradillas, Puerto Rico.

See SF-30 Continuation Page for Details.

1. CONTRACT ID CODE PAGE OF PAGES

1 2

16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)

16C. DATE SIGNED

BY 20-Jul-2018

16B. UNITED STATES OF AMERICA15C. DATE SIGNED15B. CONTRACTOR/OFFEROR

(Signature of Contracting Officer)(Signature of person authorized to sign)

8. NAME AND ADDRESS OF CONTRACTOR (No., Street, County, State and Zip Code) X W912EP18R0048

X 9B. DATED (SEE ITEM 11)

28-Jun-2018

10B. DATED (SEE ITEM 13)

9A. AMENDMENT OF SOLICITATION NO.

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

X The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offer X is extended, is not extended.

Offer must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended by one of the following methods:

(a) By completing Items 8 and 15, and returning 1 copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;

or (c) By separate letter or telegram which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN

REJECTION OF YOUR OFFER. If by virtue of this amendment you desire to change an offer already submitted, such change may be made by telegram or letter, provided each telegram or letter makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

12. ACCOUNTING AND APPROPRIATION DATA (If required)

13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACTS/ORDERS.

IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE

CONTRACT ORDER NO. IN ITEM 10A.

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation date, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(B).

C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority)

E. IMPORTANT: Contractor is not, is required to sign this document and return copies to the issuing office.

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

10A. MOD. OF CONTRACT/ORDER NO.

2. AMENDMENT/MODIFICATION NO. 5. PROJECT NO.(If applicable)

6. ISSUED BY

3. EFFECTIVE DATE

20-Jul-2018

CODE

USA ENGINEER DISTRICT, JACKSONVILLE

CONTRACTING DIVISION

701 SAN MARCO BLVD

JACKSONVILLE FL 32207-8175

W912EP 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

SF 30 CONTINUATION SHEET

Guajataca Dam Spillway and Channel Reinforcement, Isabela and Quebradillas, Puerto Rico

Amendment 0003

W912EP18R0048 SF30 Continuation Page - 2 Amendment 0003

SUMMARY OF CHANGES

Changes to Specifications:

The text changes have been updated with additions noted by underlined text and deletions noted by line/cross-outs, and pertain only to changes made by this amendment. The entire section is replaced if there is any change. The Project Table of Contents and Submittal Register are replaced without underlines and cross-outs if there are changes to these documents. New sections are added without underlines and cross-outs.

Volume 1 of 2 – Contract Documents

DELETE Section 00010A and REPLACE with the attached revised Section 00010A.

DELETE Section 00010A Attachment A and REPLACE with the attached revised Section 00010A Attachment A.

DELETE Section 01 11 00 and REPLACE with the attached revised Section 01 11 00.

DELETE Section 01 22 00 and REPLACE with the attached revised Section 01 22 00.

DELETE Section 01 52 10 and REPLACE with the attached revised Section 01 52 10.

DELETE Section 35 73 13 and REPLACE with the attached revised Section 35 73 13.

Volume 2 of 2 – Contract Specifications:

Add Drawing No. V-01.

DELETE Drawing No. G-03 and REPLACE with the attached revised Drawing No. G-03.

DELETE Drawing No. G-04 and REPLACE with the attached revised Drawing No. G-04.

DELETE Drawing No. C-01 and REPLACE with the attached revised Drawing No. C-01.

DELETE Drawing No. C-02 and REPLACE with the attached revised Drawing No. C-02.

DELETE Drawing No. C-06 and REPLACE with the attached revised Drawing No. C-06.

DELETE Drawing No. C-09 and REPLACE with the attached revised Drawing No. C-09.

DELETE Drawing No. S-03 and REPLACE with the attached revised Drawing No. S-03.

DELETE Drawing No. S-07 and REPLACE with the attached revised Drawing No. S-07.

(End of Summary of Changes)

SECTION 00010A

LINE ITEMS AND PRICING SCHEDULE

W912EP-18-R-0048 00010A-1 Amendment 0003

LINE ITEM DESCRIPTION QUANTITY UNIT UNIT PRICE TOTAL

0001 MOBILIZATION AND DEMOBILIZATION JOB $_______________

0002 SPILLWAY FLOWABLE FILL - LOW STRENGTH 1,800 CY $_______________ $_______________

0003 SPILLWAY FLOWABLE FILL - HIGH STRENGTH 12,690 CY $_______________ $_______________

INTAKE STRUCTURE SLOPE STABILIZATION

(SHOTCRETE) 303 SM $_______________ $_______________

INTAKE STRUCTURE SLOPE STABILIZATION (GROUND

ANCHORS) 78 EA $_______________ $_______________

0006 SODDING/HYDROSEEDING 920 SM $_______________ $_______________

STRUCTURAL CAST-IN-PLACE CONCRETE - SPILLWAY

SLAB 2,100 CY $_______________ $_______________

STRUCTURAL CAST-IN-PLACE CONCRETE - HEADWALL

STAIRCASE 8 CY $_______________ $_______________

STRUCTURAL CAST-IN-PLACE CONCRETE - CONE

VALVE HEADWALL 80 CY $_______________ $_______________

0010 MUD MAT 148 SM $_______________ $_______________

0011 TURBIDITY MONITORING JOB $_______________

0012 CROSS DRAIN CULVERTS 103 JOB $_______________

0013 RIPRAP 24,200 TN $_______________ $_______________

0014 ROCK FILL 46,135 TN $_______________ $_______________

0015 FIXED CONE VALVE JOB $_______________

0016 WATER DISTRIBUTION PIPING AND APPURTENANCES JOB $_______________

0017 CATHODIC PROTECTION JOB $_______________

0018 DUCTILE IRON PIPING JOB $_______________

0019 GRADED AGGREGATE BASE 110 TN $_______________ $_______________

0020 HOT MIX ASPHALT 280 SM $_______________ $_______________

0021 CONTRACTING OFFICER'S FIELD OFFICE 9 MTH $_______________ $_______________

0022 TRAFFIC CONTROL JOB $_______________

0023 EMBEDDED METALS JOB $_______________

GALVANIZED STEEL RAILINGS, HANDRAILS,

OPERATING PLATFORM JOB $_______________

0025 PVC DRAIN PIPE JOB $_______________

0026 VIBRATION CONTROL AND MONITORING JOB $_______________

GUAJATACA DAM STAGE 2 SPILLWAY AND CHANNEL REINFORCEMENT

BID SCHEDULE

k3ctcjdv Pencil

SECTION 00010A

LINE ITEMS AND PRICING SCHEDULE

W912EP-18-R-0048 00010A-2 Amendment 0003

GUAJATACA DAM STAGE 2 SPILLWAY AND CHANNEL REINFORCEMENT

BID SCHEDULE

REMOVAL AND REINSTALLATION OF EXISTING

SPILLWAY PIPES JOB $_______________

0028 DEMOLITION JOB $_______________

0029 EXCAVATION - MISCELLANEOUS JOB $_______________

0030 BACKFILL STONE 6,250 TN $_______________ $_______________

0031 GEOTEXTILE 850 SM $_______________ $_______________

0032 CONCRETE GUTTER 70 M $_______________ $_______________

0033 MUNICIPAL TAX JOB $_______________

TOTAL BID (LINE ITEMS 0001 THRU 0032): $_______________

TOTAL MUNICIPAL TAXES (LINE ITEM 0033): $_______________

NOTES:

(1) OFFER MUST PRICE ALL LINE ITEMS. SEE PROVISION AT 52.214-18 (SECTION 00100).

(2) FAILURE TO COMPLETE AND RETURN ALL REQUIRED SUBMISSIONS (SF 1442, SECTION 00010A, SECTION 00101, AND BID GUARANTEE) COULD RENDER YOUR BID NON-RESPONSIVE. SEE PARAGRAPH 999.214-4018 (SECTION 00100)

(3) ALL BID QUANTITIES ARE ESTIMATED.

(4) PURSUANT TO MUNICIPALITY LOCAL REGULATIONS, TAXES MAY APPLY WITH EACH LINE ITEM UNDER THIS CONTRACT.

SEE PARAGRAPH 999.229-1 IN SECTION 00100 OF THIS SOLICITATION. THE CONTRACT PRICE WILL BE ADJUSTED TO COMPENSATE THE CONTRACTOR FOR THE AMOUNT OF CONSTRUCTION TAXES. NO MARK-UPS WILL BE ALLOWED IN LINE ITEM 0033. THE CONTRACTOR WILL BE PAID ON THE BASIS OF PROOF OF PAYMENT FROM THE APPROPRIATE

COMMONWEALTH OF PUERTO RICO OR MUNICIPAL AUTHORITIES.

W912EP-18-R-0048 00010A-2

SECTION 00010A, Attachment A

INSTRUCTIONS FOR TECHNICAL INQUIRIES AND QUESTIONS

Technical inquiries and questions relating to this solicitation are to be submitted via Bidder Inquiry in ProjNet at (https://www.projnet.org) No Later Than (NLT) 25 July 2018 (4:00 pm). To submit and review inquiry items, prospective vendors will need to use the Bidder Inquiry Key presented below and follow the instructions listed below the key for access. A prospective vendor who submits a comment / question will receive an acknowledgement of their comment/question via email, followed by an answer to the comment/question after it has been processed by our technical team.

All timely questions and approved answers will be made available through ProjNet. Approved answers to all timely questions will also be posted on the FedBizOps in the form of a report generated from ProjNet as soon as the comment/question entering period is over and all answers are all finalized.

The Solicitation Number is: W912EP-18-R-0048

The Bidder Inquiry Key is: 8BW8EP-VE7A32

Specific Instructions for ProjNet Bid Inquiry Access from ProjNet home page:

1. Identify the Agency. This should be marked as USACE.

2. Email. Enter the email address you would like to use for communication.

3. Key. Enter the Bidder Inquiry Key listed above.

4. Click Continue. A page will then open saying that a user account was not found and will ask you to create one using the provided form.

5. Enter your First Name, Last Name, Company, City, State, Phone, Email, Secret Question, Secret

Answer, and Time Zone. Make sure to remember your Secret Question and Answer as they will be used from this point on to access the ProjNet system.

6. Click Add User. Once this is completed you are now registered within ProjNet and are currently logged into the system.

Specific Instructions for Future ProjNet Bid Inquiry Access from ProjNet home page:

1. For future access to ProjNet, you will not be emailed any type of password. You will utilize your Secret Question and Secret Answer to log in.

2. Identify the Agency. This should be marked as USACE.

3. Email. Enter the email address you used to register previously in ProjNet.

4. Key. Enter the Bidder Inquiry Key listed above.

5. Click Continue. A page will then open asking you to enter the answer to your Secret Question.

6. Enter your Secret Answer and click Login. Once this is completed you are now logged into the system.

Guajataca Dam Spillway and Channel Reinforcement Isabela and Quebradillas, Puerto Rico

SECTION TABLE OF CONTENTS

DIVISION 01 - GENERAL REQUIREMENTS

SECTION 01 11 00

SUMMARY OF WORK

PART 1 GENERAL

1.1 REFERENCES

1.2 WORK COVERED BY CONTRACT DOCUMENTS

1.2.1 Project Description

1.2.1.1 Base Work

1.2.2 Definitions

1.2.3 Location

1.2.4 Safety Requirements

1.2.5 Work Performed by Others

1.2.6 Sequence of Work

1.3 COMMENCEMENT, PROSECUTION AND COMPLETION OF WORK

1.4 LIQUIDATED DAMAGES - CONSTRUCTION

1.5 PHYSICAL DATA

1.5.1 Physical Conditions

1.5.2 Contractor Investigation

1.6 LAYOUT OF WORK

1.6.1 Established Project Control

1.6.2 Layout

1.6.3 Survey

1.7 DAMAGE TO WORK

1.8 EXISTING WORK

1.9 LOCATION OF UNDERGROUND FACILITIES

1.9.1 Notification Prior to Excavation

1.10 TIME EXTENSIONS FOR UNUSUALLY SEVERE WEATHER (31 OCT 1989)

1.10.1 Schedule of Monthly Anticipated Adverse Weather Delays

1.10.2 Contractor Responsibility

1.11 UNITS OF MEASURE

PART 2 PRODUCTS (NOT APPLICABLE)

PART 3 EXECUTION (NOT APPLICABLE)

-- End of Section Table of Contents --

SECTION 01 11 00 Page 1 W912EP-18-R-0048 Amendment 0003

SECTION 01 11 00

SUMMARY OF WORK

PART 1 GENERAL

1.1 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to in the text by the basic designation only.

U.S. ARMY CORPS OF ENGINEERS (USACE)

GDR Section 00 31 32, Geotechnical Data Report

EM 385-1-1 (2014) Safety and Health Requirements Manual

1.2 WORK COVERED BY CONTRACT DOCUMENTS

1.2.1 Project Description

The Guajataca Dam and Reservoir, owned by the Puerto Rico Electric Power Authority (PREPA), supplies domestic water and public irrigation to northwest Puerto Rico. The hydraulic-fill embankment dam was constructed in 1928. It stands 121 feet in height with a crest of approximately 1,037 feet in length, 31.2 feet in width, at an elevation of 664.4 feet. During historic flood events, water may overflow via the emergency spillway, which is of concrete construction, and has crest length of 250 feet at an elevation of 646.4 feet (197.0 meters). It includes a 750 foot concrete-lined trapezoidal chute that discharges into the Rio Guajataca River, known as the 'River Outlet' and is controlled by a high pressure sluice gate. There is a second outlet which discharges into the water supply canal to a downstream treatment plant, known as the 'Canal Outlet'.

Portable pumps may be in operation which may discharge into one or both of these outlets, to supplement lowering of the water level.

During Hurricane Maria, the unprecedented spillway discharge volume eroded earth at the end of the chute that caused undermining. The loss of earth resulted in downstream portions of the spillway failing. In addition, the dam's water canal supply pipe running under the spillway was destroyed.

Work under this contract entails reforming the concrete spillway, which is the emergency overflow for when the dam overtops in flood events, and forming a grouted riprap stilling basin within the downstream spillway area. The spillway will be a concrete lined and grouted riprap trapezoidal channel with a grouted riprap weir at the downstream boundary of the stilling basin and 48" RCP culvert. At one side of the spillway is a 36" diameter fixed cone valve outlet which releases water from behind the dam and requires connecting new piping to existing, constructing a concrete headwall at the outlet. The stilling basin will provide more energy dissipation from high velocity water flowing over the spillway, which will then flow over a grouted riprap weir and out to the river. The work at the spillway area includes excavation, backfilling with a 18" diameter minus

SECTION 01 11 00 Page 2 rock fill base, 18" to 36" diameter riprap laid on top and grouted with high strength flowable fill. An 18" structural concrete slab with dowels and water stops at the joints will be constructed as an overlay in the upper portion of the existing spillway slab and grouted riprap zone. Other work includes construction of an asphalt road and reconstruction the river outlet work channel. Work at the intake includes stabilizing an earthen slope above the reservoir pool with ground anchors and shotcrete cover.

Other miscellaneous work includes hand rails, grass seeding or sodding, cathodic protection for the steel water piping, and buried drainage and weep hole piping.

1.2.1.1 Base Work

The base contract line items include work which repairs the emergency spillway and stabilizes the slope behind the intake tower.

1.2.2 Definitions

Reservoir: The reservoir is the water pool that is held behind the dam. The reservoir may be referred to as the upstream pool, and its water elevation may be referred to as the headwater.

Spillway: A passage for surplus water from the dam. The spillway is the crest from which water uncontrollably spills over during a major flood event. This spillway is known as the emergency spillway and is of concrete construction.

Siphon: A tube used to convey liquid upwards from a reservoir and then down to a lower level of its own accord. Once the liquid has been forced into the tube, typically by suction or immersion, flow continues unaided.

Canal Outlet: The dam supplies water from the reservoir to two discharges.

The canal outlet, also known as the water supply canal, is used for municipal drinking water supply.

River Outlet: The dam supplies water from the reservoir to two discharges.

The river outlet supplies water to the Rio Guajataca River.

1.2.3 Location

The work is located at the Guajataca Dam in northwest Puerto Rico, approximately 6 miles south of the municipality of Quebradillas.

1.2.4 Safety Requirements

See Section 01 35 26 GOVERNMENTAL SAFETY REQUIREMENTS and EM 385-1-1.

1.2.5 Work Performed by Others

See paragraph PROJECT COORDINATION of Section 01 30 00 ADMINISTRATIVE

PROCEDURES.

1.2.6 Sequence of Work

A portion of the construction site is occupied by an active construction contract that is nearing completion. The initial portion of the project will require coordination of work effort with this contractor to avoid conflicts. The drawings show areas of the site that are currently in active construction or are occupied by temporary facilities and staging.

SECTION 01 11 00 Page 3

Other areas of the site are available for use for construction, staging, and temporary facilities. The Contractor shall coordinate all construction, staging, and temporary facility locations with the COR. The conflict with the existing contract will extend for approximately 90 days after the Notice to Proceed is issued for this contract. Work in areas of the site outside the occupied areas may proceed in accordance with the contract immediately after Notice to Proceed.

1.3 COMMENCEMENT, PROSECUTION AND COMPLETION OF WORK

Read this paragraph in conjunction with the Clause COMMENCEMENT, PROSECUTION, AND COMPLETION OF WORK (FAR 52.211-10) of Section 00700 CONTRACT CLAUSES in Volume 1.

1.4 LIQUIDATED DAMAGES - CONSTRUCTION

Refer to the Clause LIQUIDATED DAMAGES - CONSTRUCTION (FAR 52.211-12) of Section 00700 CONTRACT CLAUSES in Volume 1.

1.5 PHYSICAL DATA

Read this paragraph in conjunction with the Clause PHYSICAL DATA (FAR 52.236-4) of Section 00700 CONTRACT CLAUSES in Volume 1.

1.5.1 Physical Conditions

The indications of physical conditions on the drawings and in the specifications are the result of site investigations by surveys and/or by core borings. When the indicated physical conditions are the result of site investigations by core borings, the core boring logs and laboratory data are in Section 00 31 32 GEOTECHNICAL DATA REPORT (GDR) and the core boring locations are shown on the drawings. Also, see the GDR for instructions concerning availability of core borings for inspection.

1.5.2 Contractor Investigation

Refer to the Clause SITE INVESTIGATION AND CONDITIONS AFFECTING THE WORK (FAR 52.236-3) of Section 00700 CONTRACT CLAUSES in Volume 1.

1.6 LAYOUT OF WORK

Read this paragraph in conjunction with the Clause LAYOUT OF WORK (FAR 52.236-17) of Section 00700 CONTRACT CLAUSES in Volume 1.

1.6.1 Established Project Control

The Government has established monuments along the work site(s). Each monument is represented in the contract drawings by a Designation and in most cases, an alphanumeric Permanent Identifier (PID). Information concerning the location and elevations can be found within the Survey Notes on the plan sheets. The Survey Notes for each included field survey will cite a particular survey number, and specify the control used to conduct that survey. Additional information is included in the Survey Notes that must be duplicated if an attempt to recreate the subject survey is desired.

See Section 00 31 21 CONTROL MONUMENT DESCRIPTIONS.

SECTION 01 11 00 Page 4

1.6.2 Layout

From the monuments, control data and elevations established by the Government, the Contractor shall complete the layout of the work and shall be responsible for all measurements that may be required for the execution of the work to the location and limit marks prescribed in the specifications or on the contract drawings, subject to such modifications as the Contracting Officer may require to meet changed conditions or as a result of necessary modifications to the contract work.

1.6.3 Survey

The Contractor shall furnish, at his own expense, such stakes, templates, platforms, equipment, tools and material, and all labor as may be required in laying out any part of the work from the monuments, control data and elevations established by the Government. It shall be the responsibility of the Contractor to maintain and preserve all monuments, stakes and other marks established by the Contracting Officer until authorized to remove them, and if such marks or monuments are destroyed by the Contractor or through his negligence, prior to their authorized removal, they may be replaced by the Contracting Officer, at his discretion, and the expense of replacement will be deducted from any amounts due or to become due the Contractor. The Contracting Officer may require that work be suspended at any time when location and limit marks established by the Contractor are not reasonably adequate to permit checking of the work.

1.7 DAMAGE TO WORK

The responsibility for damage to any part of the permanent work shall be as set forth in Clause PERMITS AND RESPONSIBILITIES of Section 00700 CONTRACT CLAUSES in Volume 1. However, if, in the judgment of the Contracting Officer, any part of the permanent work performed by the Contractor is damaged by flood, earthquake, hurricane, or tornado, which damage is not due to the failure of the Contractor to take reasonable precautions or to exercise sound engineering and construction practices in the conduct of the work, the Contractor will make the repairs as ordered by the Contracting Officer and full compensation for such repairs will be made at the applicable contract unit or job prices as fixed and established in the contract. If, in the opinion of the Contracting Officer, there are no contract unit or job prices applicable to any part of such work, an equitable adjustment pursuant to Clause CHANGES of Section 00700 CONTRACT CLAUSES in Volume 1 will be made as full compensation for the repairs of that part of the permanent work for which there are no applicable contract unit or job prices. Except as herein provided, damage to all work (including temporary construction), utilities, materials, equipment and plant shall be repaired to the satisfaction of the Contracting Officer at the Contractor's expense, regardless of the cause of such damage.

a. The responsibility for damage to any part of the work to be performed under this contract shall be as set forth in Clause PERMITS AND RESPONSIBILITIES of Section 00700 CONTRACT CLAUSES in Volume 1.

However, if the spillway overtops by a rain or flood event and causes damaged to the construction site, or if any part of the permanent work is damaged by flood, earthquake, hurricane, or tornado, which damage is not due to the failure of the Contractor to take reasonable precaution or to exercise sound engineering and construction practices in the conduct of the work, the Contractor will make the repairs ordered by the Contracting Officer. The Contractor shall be compensated for any such repairs in accordance with the Clause CHANGES of Section 00700

SECTION 01 11 00 Page 5

CONTRACT CLAUSES in Volume 1. The equitable adjustment shall be based on the contract unit or job prices applicable to any part of the damaged work.

1.8 EXISTING WORK

In addition to "FAR 52.236-9, Protection of Existing Vegetation, Structures, Equipment, Utilities, and Improvements":

a. Remove or alter existing work in such a manner as to prevent injury or damage to any portions of the existing work which remain.

b. Repair or replace portions of existing work which have been altered during construction operations to match existing or adjoining work, as approved by the Contracting Officer. At the completion of operations, existing work shall be in a condition equal to or better than that which existed before new work started.

1.9 LOCATION OF UNDERGROUND FACILITIES

The Contractor is required to obtain digging permits prior to start of excavation. Scan the construction site with electromagnetic or sonic equipment, and mark the surface of the ground where existing underground utilities are discovered. Verify the elevations of existing piping, utilities, and any type of underground obstruction not indicated or specified to be removed but indicated or discovered during scanning in locations to be traversed by piping, ducts, channel construction and other work to be installed. Any utilities found which are not shown on the construction drawings must be brought to the Contracting Officer's attention prior to proceeding with construction.

1.9.1 Notification Prior to Excavation

Notify the Contracting Officer and Local Authority at least 14 days prior to starting excavation work. Contact PREPA at 787-521-3434 prior to excavating. Contractor is responsible for marking all utilities not marked by PREPA and other utility companies such as PRASA.

1.10 TIME EXTENSIONS FOR UNUSUALLY SEVERE WEATHER (31 OCT 1989)

This provision specifies the procedure for the determination of time extensions for unusually severe weather in accordance with the Clause DEFAULT (FIXED-PRICE CONSTRUCTION) of Section 00700 CONTRACT CLAUSES in Volume 1. In order for the Contracting Officer to award a time extension under this clause, the following conditions must be satisfied:

a. The weather experienced at the project site during the contract period must be found to be unusually severe; that is, more severe than the adverse weather anticipated for the project location during any given month.

b. The unusually severe weather must actually cause a delay to the completion of the project. The delay must be beyond the control and without the fault or negligence of the Contractor.

1.10.1 Schedule of Monthly Anticipated Adverse Weather Delays

The schedule of monthly anticipated adverse weather delays is based upon National Oceanic and Atmospheric Administration (NOAA) or similar data for

SECTION 01 11 00 Page 6 the project location and will constitute the base line for monthly weather time evaluations. The Contractor's progress schedule must reflect these anticipated adverse weather delays in all weather dependent activities.

See Section 00 33 50 WEATHER, WATER STAGE AND TIDE DATA to obtain MONTHLY

ANTICIPATED ADVERSE WEATHER DELAY WORK DAYS BASED ON 5-DAY WORK WEEK. A

reasonable number of anticipated weather delay work days is obtained from the average number of days per month (rounded to the nearest whole number) with precipitation greater than that indicated in Section 00 33 50 WEATHER, WATER STAGE AND TIDE DATA.

1.10.2 Contractor Responsibility

Upon acknowledgment of the Notice to Proceed (NTP) and continuing throughout the contract, the Contractor will record on the daily CQC report the occurrence of adverse weather and resultant impact to normally scheduled work. Actual adverse weather delay days must prevent work on critical activities for 50 percent or more of the Contractor's scheduled work day. The number of actual adverse weather delay days shall include days impacted by actual adverse weather (even if adverse weather occurred in previous month), be calculated chronologically from the first to the last day of each month, and be recorded as full days. If the number of actual adverse weather delay days exceeds the number of days anticipated in Section 00 33 50 WEATHER, WATER STAGE AND TIDE DATA (rounded to the nearest whole number), the Contracting Officer will convert any qualifying delays to calendar days, giving full consideration for equivalent fair weather work days, and issue a modification in accordance with the Clause DEFAULT (FIXED PRICE CONSTRUCTION) of Section 00700 CONTRACT CLAUSES in Volume 1.

1.11 UNITS OF MEASURE

The standard U.S. system or the metric systems of measure may be utilized by the Contractor in the performance of his work. All survey records, official documentation, engineering data, and all correspondence, including any submittals and shop drawings, shall clearly denote which system of measure is being utilized, referenced or discussed. Any omission inaccurate use of a unit of measure on the part of the Contractor shall not relieve him of his responsibilities under the contract terms. The unit of measure used in this specification is the standard U.S. system. The contract drawings denote both standard U.S. system and metric system where appropriate. If no unit of measure is indicated on the drawing such as on ranges, stations, slope elevations, and distance numbers, submit an RFI for clarification.

PART 2 PRODUCTS (NOT APPLICABLE)

PART 3 EXECUTION (NOT APPLICABLE)

-- End of Section --

SECTION 01 11 00 Page 7

SECTION TABLE OF CONTENTS

DIVISION 01 - GENERAL REQUIREMENTS

SECTION 01 22 00

MEASUREMENT AND PAYMENT

PART 1 GENERAL

1.1 SUMMARY

1.2 RESIDENT MANAGEMENT SYSTEM (RMS)

1.2.1 Definition

1.2.2 Instructions

1.3 SUBMITTALS

1.4 JOB PAYMENT ITEMS

1.4.1 Mobilization and Demobilization (Line Item 0001)

1.4.2 Turbidity Monitoring (Line Item 0011)

1.4.3 Cross Drain Culverts (Line Item 0012)

1.4.4 Fixed Cone Valve (Line Item 0015)

1.4.5 Water Distribution Piping and Appurtenances (Line Item 0016)

1.4.6 Cathodic Protection (Line Item 0017)

1.4.7 Ductile Iron Piping (Line Item 0018

1.4.8 Traffic Control (Line Item 0022)

1.4.9 Embedded Metals (Line Item 0023)

1.4.10 Galvanized Steel Railings, Handrails and Operating Platform

(Line Item 0024)

1.4.11 PVC Drain Pipe (Line Item 0025)

1.4.12 Vibration Control and Monitoring (Line Item 0026)

1.4.13 Removal and Reinstallation of Existing Spillway Pipes (Line

Item 0027)

1.4.14 Demolition (Line Item 0028)

1.4.15 Excavation - Miscellaneous (Line Item 0029)

1.4.16 Municipal Taxes (Line Item 0033)

1.5 UNIT PRICE PAYMENT ITEMS

1.5.1 Spillway Flowable Fill - Low Strength (Line Item 0002)

1.5.1.1 Payment

1.5.1.2 Measurement

1.5.1.3 Unit of Measure

1.5.2 Spillway Flowable Fill - High Strength (Line Item 0003)

1.5.2.1 Payment

1.5.2.2 Measurement

1.5.2.3 Unit of Measure

1.5.3 Intake Structure Slope Stabilization - Shotcrete (Line Item

0004)

1.5.3.1 Payment

1.5.3.2 Measurement

1.5.3.3 Unit of Measure

1.5.4 Intake Structure Slope Stabilization - Ground Anchors (Line

Item 0005)

1.5.4.1 Payment

1.5.4.2 Measurement

1.5.4.3 Unit of Measure

1.5.5 Sodding/Hydroseeding (Line Item 0006)

SECTION 01 22 00 Page 1

1.5.5.1 Payment

1.5.5.2 Measurement

1.5.5.3 Unit of Measure

1.5.6 Structural Cast-in-Place Concrete - Spillway Slab (Line Item

0007)

1.5.6.1 Payment

1.5.6.2 Measurement

1.5.6.3 Unit of Measure

1.5.7 Structural Cast-in-Place Concrete - Headwall Staircase (Line

Item 0008)

1.5.7.1 Payment

1.5.7.2 Measurement

1.5.7.3 Unit of Measure

1.5.8 Structural Cast-in-Place Concrete - Cone Valve Headwall (Line

Item 0009)

1.5.8.1 Payment

1.5.8.2 Measurement

1.5.8.3 Unit of Measure

1.5.9 Mud Mat (Line Item 0010)

1.5.9.1 Payment

1.5.9.2 Measurement

1.5.9.3 Unit of Measure

1.5.10 Riprap (Line Item 0013)

1.5.10.1 Payment

1.5.10.2 Measurement

1.5.10.3 Unit of Measure

1.5.11 Rock Fill (Line Item 0014)

1.5.11.1 Payment

1.5.11.2 Measurement

1.5.11.3 Unit of Measure

1.5.12 Graded Aggregate Base (Line Item 0019)

1.5.12.1 Payment

1.5.12.2 Measurement

1.5.12.3 Unit of Measure

1.5.13 Hot Mix Asphalt (Line Item 0020)

1.5.13.1 Payment

1.5.13.2 Measurement

1.5.13.3 Unit of Measure

1.5.14 Contracting Officer's Field Office (Line Item 0021)

1.5.14.1 Payment

1.5.14.2 Measurement

1.5.14.3 Unit of Measure

1.5.15 Backfill Stone (Line Item 0030)

1.5.15.1 Payment

1.5.15.2 Measurement

1.5.15.3 Unit of Measure

1.5.16 Geotextile (Line Item 0031)

1.5.16.1 Payment

1.5.16.2 Measurement

1.5.16.3 Unit of Measure

1.5.17 Concrete Gutter (Line Item 0032)

1.5.17.1 Payment

1.5.17.2 Measurement

1.5.17.3 Unit of Measure

PART 2 PRODUCTS (NOT APPLICABLE)

PART 3 EXECUTION

SECTION 01 22 00 Page 2

3.1 PAYMENT PROCEDURES

3.1.1 Requesting Progress Payment

3.1.2 Options and Modification CLINS

-- End of Section Table of Contents --

SECTION 01 22 00 Page 3

SECTION 01 22 00

MEASUREMENT AND PAYMENT

PART 1 GENERAL

1.1 SUMMARY

This section describes how Line Items will be measured and paid for when making progress payments. Work to be measured is described in specification sections listed for each Line Item. Measurement procedures for payment, required quantity survey or procurement documentation and payment restrictions are described in applicable specification sections.

Allocate costs for work not specifically mentioned to the Line Item most closely associated with work involved. Unless there is a specific Line Item for administrative costs, such as Quality Control and Safety, allocate such costs proportionally across all Line Items.

1.2 RESIDENT MANAGEMENT SYSTEM (RMS)

1.2.1 Definition

The terms "Contract Line Item Number (CLIN)" and "Line Item" are interchangeable herein (e.g.: CLIN 0001 is Line Item 0001). The term "CLIN" is a contracting term used in the Resident Management System (RMS) payment data base.

1.2.2 Instructions

See Section 01 45 00 RESIDENT MANAGEMENT SYSTEM CONTRACTOR MODE (RMS CM) for more information on CLINs, schedule of values of pay activities and construction schedule, and payment procedures. The Contractor mode user manual with in-depth instructions can be downloaded from the RMS web site indicated in Section 01 45 00 RESIDENT MANAGEMENT SYSTEM CONTRACTOR MODE

(RMS CM).

1.3 SUBMITTALS

Government approval is required for submittals with a "G" designation;

submittals not having a "G" designation are for information only. When used, a designation following the "G" designation identifies the office that will review the submittal for the Government. Transmit submittal items in accordance with Section 01 33 00 SUBMITTAL PROCEDURES. Submit the following preconstruction submittal items no later than 15 calendar days after Notice to Proceed:

SD-01 Preconstruction Submittals

Schedule of Values; G, RO

Provide a breakdown of job items into proposed pay activities as part of the initial project schedule. Schedule of Values will become basis for CLIN and Pay Activity data in the RMS payment data base.

SECTION 01 22 00 Page 4

SD-03 Product Data

Weight Certificates; G, DO

SD-07 Certificates

Request for Progress Payment; G, RO

Submit monthly in accordance with subparagraph "Requesting Progress Payment" below.

Delivery Tickets; G, RO

Submit concrete and rock delivery tickets for payment under the required CLIN's as stated below.

1.4 JOB PAYMENT ITEMS

Payment items for the work of this contract for which contract job payments will be made are listed in the LINE ITEMS AND PRICING SCHEDULE with the unit "JOB" and described below. All costs for items of work, which are not specifically mentioned to be included in a particular job or unit price payment item, shall be included in the listed job item most closely associated with the work involved. The job price and payment made for each item listed shall constitute full compensation for furnishing all plant, labor, materials, and equipment, and performing any associated Contractor quality control, environmental protection, meeting safety requirements, tests and reports, and for performing all work required for which separate payment is not otherwise provided.

Progress payments for job CLINs will be made in accordance with the Payments Under Fixed-Price Construction Contracts clause of Section 00700 CONTRACT CLAUSES in Volume 1. Submit a list of pay activities, (Schedule of Values) to breakdown bid for each job CLIN. The Schedule of Values shall be submitted for Government approval with the baseline schedule submittal (see Section 01 32 01 PROJECT SCHEDULE). An unbalanced Schedule of Values and Pay Activity Schedule will be returned for revision. If this contract contains either the Continuing Contracts clause or the Continuing Contracts (Alternate) clause, the Contractor should take into account the amount reserved for contract payments when preparing the construction schedule.

1.4.1 Mobilization and Demobilization (Line Item 0001)

Payment will be made for costs associated with and incidental to mobilization and demobilization and establishment of initial project management and coordination. See Clause PAYMENT FOR MOBILIZATION AND DEMOBILIZATION of Section 00700 CONTRACT CLAUSES in Volume 1.

1.4.2 Turbidity Monitoring (Line Item 0011)

Payment will be made for costs associated with and incidental to monitoring the turbidity of water sources which may be impacted by construction activities. These water sources include the dam's reservoir, water supply channel, and Guajataca River.

SECTION 01 22 00 Page 5

1.4.3 Cross Drain Culverts (Line Item 0012)

Payment will be made for costs associated with and incidental to the installing the Reinforced Concrete Pipe (RCP) Culverts as defined in SECTION 33 40 00 STORM DRAINAGE UTILITIES. Storm drainage system include but not limited to concrete pipes, pipe joints, mitered end section, high strength flowable fill, geotextile, installation, testing, etc.

1.4.4 Fixed Cone Valve (Line Item 0015)

Payment will be made for costs associated with and incidental to installing the fixed cone valve.

1.4.5 Water Distribution Piping and Appurtenances (Line Item 0016)

Payment will be made for costs associated with and incidental to installing the water discharge pipe to the stilling basin.

1.4.6 Cathodic Protection (Line Item 0017)

Payment will be made for costs associated with and incidental to designing and installing cathodic protection on steel pipe.

1.4.7 Ductile Iron Piping (Line Item 0018

Payment will be made for costs associated with and incidental to installing ductile iron weep hole piping, pipes connections to the existing drain pipes and new pipes, and drain pipes.

1.4.8 Traffic Control (Line Item 0022)

Payment will be made for costs associated with and incidental to traffic control.

1.4.9 Embedded Metals (Line Item 0023)

Payment will be made for costs associated with and incidental to furnishing and installation of embedded metals required for the valve thimble as shown on the drawings.

1.4.10 Galvanized Steel Railings, Handrails and Operating Platform (Line Item 0024)

Payment will be made for costs associated with and incidental to furnishing, installing and finishing of all required materials for the Galvanized Steel Railings, Handrails and Operating Platform. This price shall constitute full compensation for all labor, equipment, tools, and incidentals necessary to complete the work specified herein.

1.4.11 PVC Drain Pipe (Line Item 0025)

Payment will be made for costs associated with and incidental to installing PVC drain pipe, including PVC pipes, pipe joints, connection to the existing pipes and between the PVC pipes, installation, etc.

1.4.12 Vibration Control and Monitoring (Line Item 0026)

Payment will be made for costs associated with or incidental to inspecting existing structures within 200 feet from the construction limits, State Road 119, State Road 476, and the Bridge over State Road 476 (downstream of

SECTION 01 22 00 Page 6 the spillway). See Section 02 22 13 VIBRATION MONITORING.

1.4.13 Removal and Reinstallation of Existing Spillway Pipes (Line Item 0027)

Payment will be made for costs associated with or incidental to removing and replacing one (1) 8" PVC pipe and one (1) 8" ductile iron pipe before the spillway work beings and to reinstall the pipes after the spillway work is completed.

1.4.14 Demolition (Line Item 0028)

Payment will be made for costs associated with or incidental to demolition and off-site disposal of the slab section 1 and 2 for crack repair, spillway slab section 5, grouted riprap, flowable fill, as indicated on the drawings.

1.4.15 Excavation - Miscellaneous (Line Item 0029)

Payment will be made for costs associated with or incidental to miscellaneous excavation as indicated on the drawings or as required where not incidental to other line items. Such excavation shall include but is not limited to, regrading of the channel, key-in feature under the weir, key-in feature under the siphon, and excavation related to removal of concrete slabs and for construction of grouted riprap. Off-site disposal will be required.

1.4.16 Municipal Taxes (Line Item 003233)

Pursuant to municipality local regulations, taxes may apply with line items under this contract. See Paragraph 999.229-1 in Section 00100 of this solicitation. The contract price will be adjusted to compensate the Contractor for the amount of construction taxes. No mark-ups will be allowed in this line item. The Contractor will be paid on the basis of proof of payment from the appropriate Commonwealth of Puerto Rico or Municipal authorities.

1.5 UNIT PRICE PAYMENT ITEMS

Payment items for the work of this contract on which the contract unit price payments will be made are listed in the LINE ITEMS AND PRICING SCHEDULE and described below. The unit price and payment made for each item listed shall constitute full compensation for furnishing all plant, labor, materials, and equipment, and performing any associated Contractor quality control, environmental protection, meeting safety requirements, tests and reports, and for performing all work required for each of the unit price items.

Each Unit Price CLIN may be a single pay activity item or may be broken down into pay activities with smaller quantities equal to CLIN total.

Contract unit price multiplied by agreed quantity is full compensation.

1.5.1 Spillway Flowable Fill - Low Strength (Line Item 0002)

1.5.1.1 Payment

Payment will be made for costs associated with and incidental to pouring low strength flowable fill within the damaged spillway. Incidental costs include but are not limited to subgrade preparation, compaction, finishing, SECTION 01 22 00 Page 7 excavation, etc.

1.5.1.2 Measurement

The total amount of material placed, and to be paid for under this contract, will be measured by the volume-in-place with quantities determined by concrete delivery tickets. Payment will only be made for trucks which concrete is determined to meet the required specifications and for which is placed on-site. Payment will not be made prior to submission and approval of delivery tickets. The Contractor shall seek Government approval prior to ordering concrete for quantities placed above the awarded amount.

1.5.1.3 Unit of Measure

Cubic yards.

1.5.2 Spillway Flowable Fill - High Strength (Line Item 0003)

1.5.2.1 Payment

Payment will be made for costs associated with and incidental to pouring high strength flowable fill within the damaged spillway and for grouting the riprap. Incidental costs include but are not limited to subgrade preparation, compaction, finishing, excavation, etc.

1.5.2.2 Measurement

The total amount of material placed, and to be paid for under this contract, will be measured by the volume-in-place with quantities determined by concrete delivery tickets. Payment will only be made for trucks which concrete is determined to meet the required specifications and for which is placed on-site. Payment will not be made prior to submission and approval of delivery tickets. The Contractor shall seek Government approval prior to ordering concrete for quantities placed above the awarded amount.

1.5.2.3 Unit of Measure

Cubic yards.

1.5.3 Intake Structure Slope Stabilization - Shotcrete (Line Item 0004)

1.5.3.1 Payment

Payment will be made for costs associated with and incidental to stabilizing the slope at the intake structure, as depicted in the drawings at the intake structure. Incidental costs include but are not limited to slope preparation, excavation, compacted stone, geocomposite drains, High Density Polyethylene (HDPE) sheet, shotcrete, etc.

1.5.3.2 Measurement

The total amount of material placed, and to be paid for under this contract, will be measured by the finished area of completed work, measured as the area of shotcrete placed.

SECTION 01 22 00 Page 8

1.5.3.3 Unit of Measure

Square meters.

1.5.4 Intake Structure Slope Stabilization - Ground Anchors (Line Item 0005)

1.5.4.1 Payment

Payment will be made for costs associated with and incidental to installing ground anchors as depicted in the drawings. Incidental costs include but are not limited to foundation drilling, excavation, grouting and installation, etc.

1.5.4.2 Measurement

The total amount of material placed, and to be paid for under this contract, will be measured by the total quantity of anchors placed.

1.5.4.3 Unit of Measure

Each.

1.5.5 Sodding/Hydroseeding (Line Item 0006)

1.5.5.1 Payment

Payment will be made for costs associated with or incidental to placement and establishment of sod or hydroseeding.

1.5.5.2 Measurement

Measurement will be made by the area of sod placed or hydroseed spread.

1.5.5.3 Unit of Measure

Square meters.

1.5.6 Structural Cast-in-Place Concrete - Spillway Slab (Line Item 0007)

1.5.6.1 Payment

Payment will be made for costs associated with and incidental to placement and completion of reinforced concrete required for the spillway slabs including: concrete mixture, reinforcement, plate and hex nuts attached to soil nail, waterstops, adhesive anchor, formwork, concrete placing, hooks bars, finishing, curing, joint sealant, joint filler, elastomeric bearing pad, bond breaker, testing, crack repair on the existing spillway, etc.

1.5.6.2 Measurement

The total amount of material placed, and to be paid for under this contract, will be measured by the volume-in-place with quantities determined by neat lines on the drawings. Payment will only be made for concrete placed in compliance with contract specifications and accepted.

The Contractor shall seek Government approval prior to ordering concrete for quantities placed above the awarded amount.

SECTION 01 22 00 Page 9

1.5.6.3 Unit of Measure

Cubic yard.

1.5.7 Structural Cast-in-Place Concrete - Headwall Staircase (Line Item 0008)

1.5.7.1 Payment

Payment will be made for costs associated with and incidental to placement and completion of reinforced concrete required for the headwall staircase including: concrete mixture, reinforcement, formwork, adhesive anchor, concrete placing, finishing, curing, testing, etc.

1.5.7.2 Measurement

The total amount of material placed, and to be paid for under this contract, will be measured by the volume-in-place with quantities determined by neat lines on the drawings. Payment will only be made for concrete placed in compliance with contract specifications and accepted.

The Contractor shall seek Government approval prior to ordering concrete for quantities placed above the awarded amount.

1.5.7.3 Unit of Measure

Cubic yard.

1.5.8 Structural Cast-in-Place Concrete - Cone Valve Headwall (Line Item 0009)

1.5.8.1 Payment

Payment will be made for costs associated with and incidental to placement and completion of reinforced concrete required for the cone valve headwall including concrete mixture, reinforcement, formwork, concrete placing, finishing, curing, testing, etc.

1.5.8.2 Measurement

The total amount of material placed, and to be paid for under this contract, will be measured by the volume-in-place with quantities determined by neat lines on the drawings. Payment will only be made for concrete placed in compliance with contract specifications and accepted.

The Contractor shall seek Government approval prior to ordering concrete for quantities placed above the awarded amount.

1.5.8.3 Unit of Measure

Cubic yard.

1.5.9 Mud Mat (Line Item 0010)

1.5.9.1 Payment

Payment will be made for costs associated with and incidental to placement of the unreinforced concrete mud mat required for a foundation as shown on the drawings, which includes excavation, compaction, mud mat, and backfilling.

SECTION 01 22 00 Page 10

1.5.9.2 Measurement

Measurement will be made by the area of mud mat placed.

1.5.9.3 Unit of Measure

Square meter.

1.5.10 Riprap (Line Item 0013)

1.5.10.1 Payment

Payment will be made for costs associated with and incidental to placement of riprap.

1.5.10.2 Measurement

Measure riprap for payment by the ton (2,000 pounds) by weighing each truckload to the nearest 0.1 ton, and the final quantity of the whole sum is rounded to the nearest whole ton. Weigh the riprap for payment on approved scales before being placed in the work. Quarry weights will not be accepted. Use scales of sufficient length to permit simultaneous weighing all axle loads. Scales must be inspected, tested and sealed as directed to assure accuracy with 0.5 percent throughout the range of the scales. Certify scales located at the site of the work as to accuracy by an acceptable scales company representative prior to weighing any riprap.

Scales will be checked and certified before riprap hauling and rechecked and recertified whenever a variance is suspected. Furnish the scales. If commercial scales are readily available in close proximity, 25 miles of site of work, the Contracting Officer may approve the use of the scales.

Weigh riprap in the presence of the Government representative. The Contracting Officer may elect to accept certified weight certificates furnished by a public weighmaster in lieu of scale weights at the jobsite.

1.5.10.3 Unit of Measure

Ton.

1.5.11 Rock Fill (Line Item 0014)

1.5.11.1 Payment

Payment will be made for costs associated with and incidental to placement of rock fill.

1.5.11.2 Measurement

Measure rock fill for payment by the ton (2,000 pounds) by weighing each truckload to the nearest 0.1 ton, and the final quantity of the whole sum is rounded to the nearest whole ton. Weigh the rock fill for payment on approved scales before being placed in the work. Quarry weights will not be accepted. Use scales of sufficient length to permit simultaneous weighing all axle loads. Scales must be inspected, tested and sealed as directed to assure accuracy with 0.5 percent throughout the range of the scales. Certify scales located at the site of the work as to accuracy by an acceptable scales company representative prior to weighing any rock fill. Scales will be checked and certified before rock fill hauling and rechecked and recertified whenever a variance is suspected. Furnish the scales. If commercial scales are readily available in close proximity, 25

SECTION 01 22 00 Page 11 miles of site of work, the Contracting Officer may approve the use of the scales. Weigh rock fill in the presence of the Government representative.

The Contracting Officer…