W912P7-15-B-0001_Amendment_0001_July_16_2015.pdf

W62A2B51061691

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)

30-105-04 EXCEPTION TO SF 30

APPROVED BY OIRM 11-84

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

FAR (48 CFR) 53.243

PINOLE SHOAL CHANNEL MAINTENANCE DREDGING PROJECT, CONTRA COSTA COUNTY, CALIFORNIA

BID OPENING DATE HAS BEEN POSTPONDED TO 22 JULY 2015.

ENCL): SF 1442 PAGES 1 AND 2, SECTION 00 10 00 PRICING SCHEDULE PAGE 6, SECTION 01 22 00.00 10 MEASUREMENT AND PAYMENT, SECTION 01 32 23 HYDROGRAPHIC SURVEY PAGES 3 AND 4, SECTION 35 20 23 DREDGING PAGES 1, 5, 6, 8, AND 9, SECTION 35 20 23.13 SCOW – ULLAGE PROFILE PAGE 3, SECTION 35 20 24 AQUATIC DISPOSAL PAGE 3, DRAWINGS SHEETS C1-C7, WAGE DETERMINATION

DATED 7/10/2015.

1. CONTRACT ID CODE PAGE OF PAGES

J 1 115

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

16C. DATE SIGNED

BY

16B. UNITED STATES OF AMERICA 15C. DATE SIGNED 15B. 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 W912P7-15-B-0001

X 9B. DATED (SEE ITEM 11)

17-Jun-2015

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

16-Jul-2015

CODE

US ARMY ENGINEER DISTRICT, SAN FRANCISCO

CONTRACTING DIVISION

1455 MARKET ST., 17TH FLOOR SUITE 1741

SAN FRANCISCO CA 94103-1398

W912P7 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODE CODE

EMAIL: TEL:

W912P7-15-B-0001

Continuation page of SF 30 Amendment of Solicitation/Modification of Contract

Changes

Standard Form 1442

• Page 1 Block 10 Job Description, revised quantity.

• Page 1 Block 13 Additional Solicitation Requirements – revised Bid Open date.

Section 00 10 00 Pricing Schedule

• Page 6 of 108, revised quantity for CLIN 0002AA.

Section 01 22 00.00 10 Measurement and Payment

• Page 2 – Added information to last paragraph.

Section 01 32 23 Hydrographic Survey

• Page 3, Para 1.1 Introduction – Deleted “independent”.

• Page 4, Para 1.3.1 Before-Dredge Survey – Added sentence to first paragraph.

• Page 4, Para 1.3.2 After-Dredge Survey – Added sentence to first paragraph.

Section 35 20 23 Dredging

• Page 1 Table of Contents, Changed titles for Para 1.5.5 and Para 1.5.6.

• Page 5, Para 1.2.2 Coast Guard Notification – Corrected title of reference Section.

• Page 6, Para 1.5.2 – Added a word.

• Page 8, Para 3.2.2.1 – Deleted requirement.

• Page 9, Para 3.2.3.1 Character of Materials – Added sentence.

Section 35 20 23.13 Scow – Ullage Profile

• Page 3, Para 1.2.2 – Deleted and replaced updated Points of Contact in first paragraph and added reference in second paragraph.

Section 35 20 24 Aquatic Disposal

• Page 3, Para 3.2.1

• Page 3, Para 3.3.1 Overflows – Deleted first sentence.

Drawing Sheets C1-C7

• Added current hydrographic survey soundings.

W62A2B51061691

SET ASIDE FOR SMALL BUSINESS

PINOLE SHOAL CHANNEL MAINTENANCE DREDGING PROJECT, CONTRA COSTA COUNTY, CALIFORNIA

PROJECT DESCRIPTION: The work consists of maintenance dredging in the Pinole Shoal Channel of 47,000 cubic yards of dredged material to provide an authorized project depth of -35-feet plus 1 foot allowable paid over-depth. Dredged material excavated from the Pinole Shoal Channel s hall be transported and disposed at the Government-furnished in-bay disposal site, SF-10. All dredging, material transportation and material pl acement shall be in accordance with the project plans, specifications, permits, regulatory guidance and applicable contract clauses.

This requirement is set aside for Small Business competition. It will be issued as an invitation for bid (IFB) which will result in the award of a single Firm Fixed Price (FFP) contract.

The North American Industry Classification System (NAICS) Code applicable to this acquisition is: 237990.

ESTIMATED COST RANGE IS BETWEEN: $1,000,000 - $5,000,000

X

JAMES E GARROR 415-503-6988

NOTE: In sealed bid solicitations "offer" and "offeror" mean "bid" and "bidder".

10. THE GOVERNMENT REQUIRES PERFORMANCE OF THE WORK DESCRIBED IN THESE DOCUMENTS

NEGOTIATED

17-Jun-2015

(RFP)

(IFB)

CALL:

B. TELEPHONE NO. (Include area code) (NO COLLECT CALLS)

See Item 7

2. TYPE OF SOLICITATION

SEALED BID

3. DATE ISSUED

9. FOR INFORMATION A. NAME

SOLICITATION

NSN 7540-01-155-3212 1442-101 STANDARD FORM 1442 (REV. 4-85)

Prescribed by GSA FAR (48 CFR) 53.236-1(e)

11. The Contractor shall begin performance within _______ 5 calendar days and complete it within ________ 63 calendar days after receiving award, X notice to proceed. This performance period is X mandatory, negotiable. (See _________________________ 52.211-10

12 A. THE CONTRACTOR MUST FURNISH ANY REQUIRED PERFORMANCE AND PAYMENT BONDS?

(If "YES," indicate within how many calendar days after award in Item 12B.)

X YES NO

13. ADDITIONAL SOLICITATION REQUIREMENTS:

A. Sealed offers in original and __________ 1 copies to perform the work required are due at the place specified in Item 8 by ___________ local time 22 July 2015 ( date). If this is a sealed bid solicitation, offers must be publicly opened at that time.

shall be marked to show the offeror's name and address, the solicitation number, and the date and time offers are due.

B. An offer guarantee X is, is not required.

C. All offers are subject to the (1) work requirements, and (2) other provisions and clauses incorporated in the solicitation in full text or by reference.

D. Offers providing less than _______ 60 calendar days for Government acceptance after the date offers are due will not be considered and will be rejected.

SOLICITATION, OFFER,

AND AWARD

(Construction, Alteration, or Repair)

1. SOLICITATION NO.

IMPORTANT - The "offer" section on the reverse must be fully completed by offeror.

4. CONTRACT NO.

7. ISSUED BY CODE

US ARMY ENGINEER DISTRICT, SAN FRANCISCO

CONTRACTING DIVISION

1455 MARKET ST., 17TH FLOOR SUITE 1741

SAN FRANCISCO CA 94103-1398

W912P7

PAGE OF PAGES

1 OF

CODE

( Title, identifying no., date):

12B. CALENDAR DAYS

11:00 AM (hour) Sealed envelopes containing offers

5. REQUISITION/PURCHASE REQUEST NO. 6. PROJECT NO.

8. ADDRESS OFFER TO (If Other Than Item 7)

FAX: TEL: TEL: FAX:

W912P7-15-B-0001 108

20B. SIGNATURE

(REV. 4-85) STANDARD FORM 1442 BACK

TO SIGN

NSN 7540-01-155-3212

SOLICITATION, OFFER, AND AWARD (Continued) (Construction, Alteration, or Repair)

CODE FACILITY CODE

17. The offeror agrees to perform the work required at the prices specified below in strict accordance with the terms of this solicitation, if this offer is accepted by the Government in writing within ________ calendar days after the date offers are due.

the minimum requirements stated in Item 13D. Failure to insert any number means the offeror accepts the minimum in Item 13D.)

AMOUNTS SEE SCHEDULE OF PRICES

18. The offeror agrees to furnish any required performance and payment bonds.

19. ACKNOWLEDGMENT OF AMENDMENTS

(The offeror acknowledges receipt of amendments to the solicitation -- give number and date of each)

AMENDMENT NO.

DATE

20A. NAME AND TITLE OF PERSON AUTHORIZED TO SIGN

OFFER (Type or print)

AWARD (To be completed by Government)

21. ITEMS ACCEPTED:

22. AMOUNT 23. ACCOUNTING AND APPROPRIATION DATA

24. SUBMIT INVOICES TO ADDRESS SHOWN IN ITEM

(4 copies unless otherwise specified)

CODE

(Insert any number equal to or greater than

20C. OFFER DATE

25. OTHER THAN FULL AND OPEN COMPETITION PURSUANT TO

10 U.S.C. 2304(c) 41 U.S.C. 253(c)

CODE 27. PAYMENT WILL BE MADE BY:26. ADMINISTERED BY

(Include ZIP Code) 14. NAME AND ADDRESS OF OFFEROR 15. TELEPHONE NO. (Include area code)

(Include only if different than Item 14) 16. REMITTANCE ADDRESS

30B. SIGNATURE

29. AWARD (Contractor is not required to sign this document.)

document and return _______ copies to issuing office.) Contractor agrees Your offer on this solicitation, is hereby accepted as to the items listed. This award con-to furnish and deliver all items or perform all work, requisitions identified summates the contract, which consists of (a) the Government solicitation and on this form and any continuation sheets for the consideration stated in this your offer, and (b) this contract award. No further contractual document is contract. The rights and obligations of the parties to this contract shall be necessary.

governed by (a) this contract award, (b) the solicitation, and (c) the clauses, representations, certifications, and specifications or incorporated by refer-ence in or attached to this contract.

30A. NAME AND TITLE OF CONTRACTOR OR PERSON AUTHORIZED 31A. NAME OF CONTRACTING OFFICER (Type or print)

30C. DATE

(Type or print)

TEL: EMAIL:

31B. UNITED STATES OF AMERICA 31C. AWARD DATE

BY

CONTRACTING OFFICER WILL COMPLETE ITEM 28 OR 29 AS APPLICABLE

(Contractor is required to sign this 28. NEGOTIATED AGREEMENT

(Must be fully completed by offeror) OFFER

W912P7-15-B-0001

ITEM NO SUPPLIES/SERVICES QUANTITY UNIT UNIT PRICE AMOUNT

0002AA 22,000 Cubic Yard

Required Dredging to -35 ft MLLW at Pinole Shoal Channel

FFP

FOB: Destination

PURCHASE REQUEST NUMBER: W62A2B51061691

NET AMT

ITEM NO SUPPLIES/SERVICES QUANTITY UNIT UNIT PRICE

AMOUNT

0002AB 25,000 Cubic Yard

Paid Overdepth Dredging to -36 ft MLLW at Pinole Shoal Channel

FFP

FOB: Destination

PURCHASE REQUEST NUMBER: W62A2B51061691

NET AMT

Total Price (0002AA, 0002AB) $__________________________

Total Evaluated Price (0001, 0002AA, 0002AB) $___________________________

Pinole Shoal Channel FY15 O&M Dredging Project

Section 01 22 00.00 10 Page 1

SECTION TABLE OF CONTENTS

DIVISION 01 – GENERAL REQUIREMENTS

SECTION 01 22 00.00 10

MEASUREMENT AND PAYMENT

PART 1 GENERAL

1.1 CONTRACT ADMINISTRATION

1.1.1 Unit of Payment

1.1.2 Estimated Quantities

1.1.3 Payable Quantity

1.1.4 Anticipated Dredge Quantities

1.1.5 Unit Price

1.1.6 Mobilization and Demobilization

PART 2 PRODUCTS

NOT USED

PART 3 EXECUTION

3.1 MEASUREMENT AND PAYMENT

3.1.1 Mobilization and Demobilization, CLIN 0001

3.1.2 Dredging and placement of Materials, CLIN 0002

3.2 QUANTITY SURVEYS

Section 01 22 00.00 10 Page 2

SECTION 01 22 00.00 10

MEASUREMENT AND PAYMENT

04/06

1.1 CONTRACT ADMINISTRATION

1.1.1 Unit for Payment

Payment will be at the contract unit price per cubic yard, multiplied by total cubic yards of the Allowable (Paid) Overdepth Prism and Required

Dredge Prism. For dredge prism definitions, see Section 35 20 23 DREDGING.

Include a bid unit price per cubic yard of dredging based on the quantity as specified or indicated.

1.1.2 Estimated Quantities

The total estimated quantity of dredged material to provide a depth of -35-ft plus 1-ft of payable overdepth from the Pinole Shoal Channel is a volume calculation bounded by the Required Dredge Prism and the Allowable (Paid)

Overdepth Prism as defined in Section 35 20 23 1.5.2 DREDGING.

The computations for the estimated quantities were calculated using Standard

Hypack TIN to LNW, Contour Method, and then projected to the estimated before-dredge survey date for each reach. The projected shoal rates for each reach are based on historical survey averages.

The estimated quantities shown in the Bid Schedule do not include available side slope material outside of the channel toes; however, the Contractor will be paid for the volume of dredge material removed above the side slopes based on the difference between the Before-Dredge and After-Dredge Surveys, and will be paid at the unit price for project depth dredging.

Contractor may dredge box cuts to capture anticipated material that sloughs into channel dredging prism. See Typical Dredging Section, Drawing Sheet G1 and Box Cut Volume Calculation Sketch 1.1.2 in this Section paragraph for allowable box cut details. All box cuts are made at the Contractor’s risk.

All sloughed material from the Side Slopes above the neat line of the side slopes will be paid at the unit price for project depth material.

file://Spn-fs4sfo.spd.ds.usace.army.mil/cespn/BRANCH_FOLDERS/ENGINEERING/Civil_Design/Oakland2012_Inner&Outer_O&M/35%2020%2023.doc file://Spn-fs4sfo.spd.ds.usace.army.mil/cespn/BRANCH_FOLDERS/ENGINEERING/Civil_Design/Oakland2012_Inner&Outer_O&M/35%2020%2023%201.5.1.doc

Section 01 22 00.00 10 Page 3

1.1.3 Payable Quantity

The payable quantity is the difference between the available material shown in the Before-Dredge surveys and the quantity remaining found in the After-

Dredge surveys. For Before-Dredge and After-Dredge Surveys, see Section 01

32 23 HYDROGRAPHIC SURVEY. For dredging prisms, see definitions, Section 35

20 23 DREDGING. Payable quantities shall only be computed for the required

Dredge Prism and the Allowable (Paid) Dredge Prism.

1.1.4 Anticipated Dredge Quantities

After the Before-Dredge survey has been performed for each reach, the

Contractor will be responsible for all shoaling during the execution of the dredging in each reach and this should be reflected in the Contractor’s bid proposal. Any difference in the bid quantities that occur as a result of shoaling or the configuration of the shoaling following the issuance of the solicitation and before the Before-Dredge survey is performed shall be resolved solely in accordance with the provisions of the FAR Clause 52.211-

18, Variations in Estimated Quantities.

1.1.5 Unit Price

In the event there is a difference between a unit price and the extended total, the unit price will be held to be the intended bid. If the bidder shows only the total price but fails to enter a unit price, the total file://Spn-fs4sfo.spd.ds.usace.army.mil/cespn/BRANCH_FOLDERS/ENGINEERING/Civil_Design/Oakland2012_Inner&Outer_O&M/01%2032%2023.doc file://Spn-fs4sfo.spd.ds.usace.army.mil/cespn/BRANCH_FOLDERS/ENGINEERING/Civil_Design/Oakland2012_Inner&Outer_O&M/01%2032%2023.doc file://Spn-fs4sfo.spd.ds.usace.army.mil/cespn/BRANCH_FOLDERS/ENGINEERING/Civil_Design/Oakland2012_Inner&Outer_O&M/35%2020%2023.doc file://Spn-fs4sfo.spd.ds.usace.army.mil/cespn/BRANCH_FOLDERS/ENGINEERING/Civil_Design/Oakland2012_Inner&Outer_O&M/35%2020%2023.doc

Section 01 22 00.00 10 Page 4 divided by the estimated quantity will be held to be the intended unit price.

1.1.6 Mobilization and Demobilization

The Bid Items for Mobilization and Demobilization shall include all costs associated with the work of the contract identified and described in 3.1.1 and 3.1.2.

Not Used

3.1 MEASUREMENT AND PAYMENT

3.1.1 Mobilization and Demobilization, CLIN 0001

a. Measurement and payment for mobilization and demobilization will be considered complete and full compensation, and will be paid at the

Contract lump sum price, for the effort and cost to transport to and from the job site(s) all necessary serviceable Contractor plant including related equipment, fuel, supplies, and personnel required for its operation for all work associated with contract CLIN 0002. Plant subject to pre-work safety inspection requirements will not be considered "mobilized" until such equipment is determined to be in compliance by the Government. For bidding purposes, the designated point of mobilization shall be Pinole, California.

b. Payment for mobilization and demobilization will be made in accordance with DFARS 252.236-7004, PAYMENT FOR MOBILIZATION AND DEMOBILIZATION

(DEC 1991), Section 01 72 00 Contract Clauses.

3.1.2 Dredging and Placement of Materials, CLIN 0002

a. Measurement and payment for the bid item referenced in the title above will be considered complete and full compensation for the effort and cost to excavate the entire dredging pay areas to not less than the

"required dredging depth" as shown on the drawings, will be paid at the unit price (cubic yard of dredged material) for this item.

b. The Government will determine cubic yardage quantities for payment by taking before-dredge and after-dredge surveys. Measurement shall be made as stated in paragraph 3.2 QUANTITY SURVEYS.

3.2 QUANTITY SURVEYS

a. The Government will determine cubic yard quantities for payment by taking before-dredge and after-dredge surveys utilizing electronic depth sounding and horizontal positioning equipment. Sounding depths used for determination of pay quantity volumes will generally be derived from surveys utilizing 208 kHz multi-beam acoustic methods.

Section 01 22 00.00 10 Page 5

However, the Government reserves the right to take soundings by any method, including: leadline, or trigonometric leveling (total station)/differential leveling; the same method will be used for the before and after survey of a given reach. As required, data from land surveys will be obtained and incorporated into the volume computation.

The dredging pay area is defined by intersection of the maximum dredging pay depth and the dredging pay slope as shown by the

Descriptive Sketch in 1.1.2. The number of cubic yards calculated as being payable shall be the difference between the most recent before-dredge and after-dredge surveys of the dredging pay area or applicable acceptance area. Any material removed from outside the maximum dredging prism will not be considered for payment. Accuracy(ies) will be in accordance with stated quality control values in USACE

Hydrographic Surveying Manual EM-1110-2-1003 (April 2004 Change 1

Edition). At the request of the Contractor, the Government will provide the survey line files by which surveys are run.

b. Government Equipment. The following survey equipment will be used by the Government Survey Crew during the collection of sounding data:

Reson 7125 Multi-beam dual frequency a 208khz transducer

Reson T20P Multi-beam dual frequency a 208khz transducer

Trimble DSM232 DGPS Receiver

Trimble HPB450 450 MHz radio modem

Applantix POSMV 320 heave compensator

i. Note: The Government will be available at the request of the Contractor to run check surveys between the

Contractor's and Government's survey vessels prior to the start of work.

c. Cubic yard volumes will be computed by comparing the Government's before-dredge and after-dredge soundings against the channel design template. The Government intends to use Hypack software to compute pay volumes using the Triangulated Irregular Network (TIN) surface volume computation method. Computed pay volumes will be the difference between the TIN to CHANNEL computation of the after-dredge survey, and the TIN to CHANNEL computation of the before-dredge survey. No adjustments will be made for infill material from any cause during construction in any reach.

d. Actual material removed from the side slope is considered payable as long as it is within the maximum dredging pay prism as determined by the before-dredge hydrographic survey data. The maximum dredging pay prism assumes side slopes projected upward from the maximum payline depth at slopes shown on the Contract drawing, regardless of whether it is found to be representative of the actual side slope conditions after dredging (see Descriptive Sketch in 1.1.2). No payment will be made for material removed from outside the slope projection shown on the

Contract drawings. (NOTE: The bidders are responsible for calculating the quantity of non-pay yards that may be removed outside the pay template and shall adjust his bid accordingly.)

e. All Contractor-owned equipment including all attendant plant and anchor lines must be removed from the acceptance area prior to the initiation of a survey. If Contractor owned equipment remains in the acceptance area at the time of survey, the survey will be cancelled and the

Section 01 22 00.00 10 Page 6

Contractor shall be liable for the full daily rate for a Government survey crew shown in paragraph QUANTITY SURVEYS sub item k., below.

f. The Government will conduct before-dredge surveys in order to identify and designate areas of shoaling to be dredged within the overall dredging pay areas. The Government will conduct after-dredge surveys to determine final acceptance of dredging pay areas or sections thereof. The Government may conduct periodic progress surveys at all work locations. If the Contractor chooses to do additional surveys the

Contractor shall notify the GQAR in advance of any surveys conducted by the Contractor, and the GQAR will have the option of accompanying the

Contractor on these surveys. All surveys conducted by the Contractor shall be in accordance with the USACE Hydrographic Surveying Manual EM-

1110-2-1003 (2004 Edition).

g. If a survey is completed by the Contractor, the Contractor shall furnish the originals of all field notes, sounding plots, and electronic survey data described in Section 01 32 23 HYDROGRAPHIC

SURVEY, Para. 1.3.3 QUALITY CONTROL (QC) SURVEYS, along with all other records relating to the survey or to the layout of the work, to the

Government, who may consider them to the extent necessary to determine the amount of progress payments. The Contractor shall retain copies of all such material furnished to the Government.

h. The typical cross sections shown on the Contract drawing(s) represent the anticipated before-dredge condition prior to start of work and are not necessarily derived from the latest available survey data. All survey requests must be submitted a minimum of three calendar days prior to the date on which the survey is required.

i. Generally the survey will be performed within three calendar days of the desired survey date and the complete layout or after-dredge package

(electronic survey data, layout chart, quantity computations, etc) will be available two business days thereafter. However, personnel and equipment availability may dictate that surveys are occasionally performed later than three days after the request. The Contractor can expect the final post-dredge survey chart to be available within three calendar days after the soundings are complete. The Contractor shall be given verbal notification of acceptance within 24 hours of the post-dredge survey. The Contractor is to expect this time in his schedule and is to remain mobilized until the results of the after-dredge survey are known, and acceptance of the work area has been made.

Determination of acceptance of work will be based on this after-dredge survey chart and will be made within the two calendar days stated above.

j. The Contractor is responsible for requesting Government before-dredge and after-dredge surveys of all work areas. All Contractor requests for Government surveys shall be made by submission of a Hydrographic

Survey Request Form (see 01 32 23, HYDROGRAPHIC SURVEY, Attachment 2).

The request shall be submitted to the Government representative(s) identified at the pre-construction conference. The Contractor's dredge including all attendant plant and anchor lines must be clear of the acceptance area(s) before a survey is made. The Government Survey periods stated above are contingent on weather and sea conditions.

Section 01 22 00.00 10 Page 7

k. In the event it becomes necessary to reschedule a request for survey, the Contractor shall notify the Government at least one calendar day prior to the first day of the scheduled survey period. Failure to provide such notification shall make the Contractor liable for half the daily rate for a Government survey crew. If the survey party mobilizes to the site before the survey is cancelled, the Contractor shall be liable for the full daily rate for a Government survey crew of $5,000.

l. Should more than one sounding or sweeping operation by the Government over an area be necessary by reason of work for the removal of shoals disclosed at a prior sounding or sweeping, the cost of such second and any subsequent sounding or sweeping operation will be charged against the Contractor at the rate of $5,000 per day for each day in which the

Government plant is engaged in sounding or sweeping and/or is enroute to or from the site or held at or near the said site for such operations.

m. The Contractor may obtain the most recent hydrographic surveys performed by the San Francisco District at the following link:

http://www.spn.usace.army.mil/Missions/Surveys,StudiesStrategy/HydroSur vey/PinoleShoal.aspx

-- End of Section --http://www.spn.usace.army.mil/Missions/Surveys,StudiesStrategy/HydroSurvey/PinoleShoal.aspx http://www.spn.usace.army.mil/Missions/Surveys,StudiesStrategy/HydroSurvey/PinoleShoal.aspx

Pinole Shoal FY15 O&M Dredging Project

Section 01 32 23 Page 1

DIVISION 01 – GENERAL REQUIREMENTS

SECTION 01 32 23

HYDROGRAPHIC SURVEY

1.1 INTRODUCTION

1.1.1 Payments

1.2 TECHNICAL CRITERIA AND REFERENCE STANDARDS

1.2.1 References

1.3 WORK TO BE PERFORMED

1.3.1 Before-Dredge Survey

1.3.2 After-Dredge Survey

1.3.2.1 Request for Government Survey

1.3.2.2 Reach Acceptance

1.3.2.3 Reach Rejection

1.3.3 Quality Control (QC) Surveys

1.3.4 Progress Payment Survey

1.3.5 Quality Assurance (QA) Survey

1.3.6 Volume Computations

1.3.6.1 Available Material

1.4 SUBMITTALS

1.4.1 Basic Survey Documentation Submittal

1.4.1.1 Plotting

1.4.1.2 Cross Sections

1.4.1.3 Depth Elevation Measurements

1.4.1.4 Electronic Copies of Surveys

1.4.2 Progress payment Survey Documentation

1.4.2.1 Quantity Calculations

1.4.2.2 Printed record

1.4.2.3 Data Review

1.4.3 Final Payment Survey Documentation

1.4.4 Equipment Data

1.4.5 Software

1.4.6 Survey Contractor Qualifications

PART 2 PRODUCTS

NOT USED

PART 3 EXECUTION

3.1 SURVEY PROCEDURES

3.1.1 Horizontal Positioning Procedures and Accuracies

3.1.1.1 Positioning

3.1.2 Reference Horizontal Control Data

3.1.3 Depth Measurement Procedures and Calibration

3.1.4 Vertical Reference Datum

3.2 CONTRACTOR SURVEY CERTIFICATION

3.2.1 Contractor’s Representative

Section 01 32 23 Page 2

3.2.2 Survey Certification

3.2.3 Unacceptable Survey

3.2.4 Reinstating Unacceptable Survey

3.2.5 Refusal to Certify

Attachment 1 Survey Quality Control (QC) Log

Attachment 2 Contractor Survey Certification

Section 01 32 23 Page 3

SECTION 01 32 23

HYDROGRAPHIC SURVEY

1 PART 1 GENERAL

1.1 INTRODUCTION

The contractor shall acquire the services of an independent survey contractor to provide all labor, material, and equipment necessary to perform professional hydrographic surveying in the location and time period stated in STANDARD FORM 1442. The independent Survey Contractor shall be registered and licensed in the State of California. The work under this subcontract shall be used for quality control of maintenance dredging and determining project conditions. The project conditions include the project schedule, the dredging plan, and the volumes used for progress payments. The contractor shall furnish the required personnel, equipment, instruments, and transportation, as necessary to accomplish the required services and furnish to the government reports and other data together with supporting material developed during the field data acquisition process. During the prosecution of the work, the contractor shall provide adequate professional supervision and quality control to assure the accuracy, quality, completeness, and progress of the work.

1.1.1 Payments

Work included in this section of the specifications for which no specific contract line item is included in the Pricing Schedule of the contract shall be considered an associated subsidiary obligation. No separate payment will be made for associated subsidiary obligations.

1.2 TECHNICAL CRITERIA AND REFERENCE STANDARDS

All parties shall comply with the procedures, standards and quality control criteria in EM 1110-2-1003 in performing hydrographic surveys for this contract. The independent Survey Contractor shall be registered and licensed in the state of California.

1.2.1 References

The publications listed below form a part of this specification.

U.S. ARMY CORPS OF ENGINEERS (USACE)

EM 1110-2-1003 (2001; 2004 Change 1) Engineering and Design

-- Hydrographic Surveying

EM 1110-1-2909 (2005) Engineering and Design -- Geospatial

Data and Systems

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1.3 WORK TO BE PERFORMED

Specific procedural, technical, and quality control requirements for hydrographic surveying to be performed under this contract are listed in the paragraphs below. Unless otherwise indicated in this contract, each required service shall include field-to-finish effort performed in accordance with the standards and specifications in EM 1110-2-1003. All survey work conducted shall be submitted to the Contracting Officer Representative using the Basic Survey Documentation Submittal.

1.3.1 Before-Dredge Survey

The project footprint is divided into “Acceptance Reaches” and is listed on Sheet 1 of the contract drawings. A survey used to represent the depth of an acceptance reach within the project channel prior to dredging will be referred to as a Before-Dredge Survey. The Before-Dredge survey used for volume computations will be selected by the Contracting Officer Representative. The Government may elect to use the Contractor’s survey.

The Government shall perform a Before-Dredge survey for each acceptance reach of the entire project. The Government will perform Before-Dredge surveys using 208 khz multi-beam survey equipment. The Government will provide the Contractor copies of the Before-dredge survey data files.

1.3.2 After-Dredge Survey

A survey used to represent the depth of an acceptance reach within the project channel after dredging will be referred to as an After-Dredge Survey. An After-Dredge Survey is any survey conducted by the government.

The Government will perform After-Dredge surveys using 208 khz multi-beam survey equipment. The After-Dredge survey used for volume computations will be selected by the Contracting Officer Representative. The Government may elect to use the Contractor’s survey.

After completion of an acceptance reach the Government will perform After- Dredge surveys within 7 days of the receipt of a Request for Government Survey. The Contracting Officer Representative will direct the Contractor to work in the next acceptance reach or next portion of the acceptance reach until the After-Dredge survey is accepted. Should any shoals, lumps, or other lack or required contract depth be disclosed by this examination, the Contractor shall be required to remove same by dredging the channel bottom at the contract rate for dredging, or by barring as approved by the Contracting Officer in accordance with Para. 3.2.6.4 Section 35 20 23 DREDGING. No shoals or lumps above contract depth, as evidenced by multi-beam sounding will be accepted.

1.3.2.1 Request for Government Survey

The Contractor shall notify the Government 7 days in advance of completing an Acceptance Reach. The Contractor shall submit in writing a Request for Acceptance Survey located in Attachment 2 to this Section.

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1.3.2.2 Reach Acceptance

Acceptance of Reach(es) will be in writing from the Contracting Officer Representative based on the Government After-dredge multi-beam survey plan view plots using 5’ X 5’ bin data.

1.3.2.3 Reach Rejection

If the Contracting Officer Representative finds the after-dredge survey of the acceptance reach to be unacceptable, the Contractor shall resume dredging or barring, in accordance with Section 35 20 23 DREDGING, until the work is complete. The Contractor is responsible for time required for dredging or barring to remove shoals, lumps or other lack of contract depth and for the time required to resurvey the rejected Acceptance Reach. When the dredging or barring is complete, the after-dredge survey process, starting with the Contractor's written Request for Acceptance Survey, is then repeated except that the Contractor is liable for subsequent Government survey costs. The Contractor will be assessed $7,000 per day that the Government spends on dredge surveys of an Acceptance Reach that is rejected after the first Government after-dredge survey. The Government's efforts include time spent on station waiting, surveying time and after-survey data processing and reporting. A partial day of survey efforts by the Government will be billed as a full day.

1.3.3 Quality Control (QC) Surveys

Surveys conducted by the contractor will be referred to as Quality Control or QC Surveys. QC Surveys shall be conducted at least once per week during weeks in which there is dredging or disposal. All raw and edited survey data shall be submitted to the Government and shall be certified stamped by the independent surveyor. When directed by the Contracting Officer Representative, the Contractor shall perform QC surveys and provide cross-sectional views of the edited, tide-level adjusted survey data to the Government on site. The Contractor shall provide print outs of the cross-sectional plots on site.

1.3.4 Progress Payment Survey

The Contractor shall conduct QC Surveys for progress payments. Surveys conducted for the purpose of progress payments will be referred to as Progress Payment Surveys. The Contractor shall notify the Government 3 working days prior to performing a QC Survey for a progress payment. The Government shall be informed about Contractor surveying activities, including provisions for onsite Government observers. The Government will have the option of accompanying the Contractor on these surveys. In addition to the Basic Survey Documentation Submittal, submit the Progress Payment Survey Documentation as described in Paragraph 1.4.2. The Contractor and Surveyor shall sign the Certification of Progress Payment Survey (Attachment 1, Block 3) and attach a copy to the payment request.

The Contractor shall calculate the volume of material dredged for Progress Payment Quantity based on the Before-Dredge Survey and the contractor QC Survey using TIN to TIN method in EM 1110-2-1003.

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1.3.5 Quality Assurance (QA) Survey

The Government may perform QA surveys to assure the quality of the dredging and disposal operations, and the quality of the Contractor's QC surveys.

1.3.6 Volume Computations

The Contractor shall have the capability to compute excavation and placement quantities from work performed under this contract. Volume computations shall be generated by using the TIN (Triangulated Irregular Network) computation method, as outlined in the Hydrographic Surveying Manual EM 1110-2-1003, dated January 2002, and the subsequent changes/revisions issued by HQUSACE. A 5-foot by 5-foot matrix using the average depth of all depths recorded in a cell shall be generated from the edited multi-beam data to perform the TIN volume computations, following the procedures in EM 1110-2- 1003. The Government will furnish construction templates and limits from which volumes are to be computed from projected sectional end areas. The Contractor shall calculate volumes for each acceptance reach and submit for Government approval.

1.3.6.1 Available Material

The material available before dredging will be calculated from the Government before-dredge survey data.

1.4 SUBMITTALS

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

Submittals having an “I” designation are for information only. The following shall be submitted in accordance with SUBMITTAL PROCEDURES SECTION 01 33 00

SUBMITTAL PROCEDURES:

SD-01 Preconstruction Submittals

Equipment Data; I 01 32 23-1.4.4 Equipment offset survey and maintenance log

Software; I 01 32 23-1.4.5

Survey Contractor Qualifications I 01 32 23-1.4.6

SD-06 Test Reports

Basic Survey Documentation Submittal; G 01 32 23-1.4.1

Progress Payment Survey Documentation; G 01 32 23-1.4.2

Final Payment Survey Documentation; G 01 32 23-1.4.3

1.4.1 Basic Survey Documentation Submittal

A Basic Survey Documentation Submittal shall be submitted by the Contractor for every survey. The report shall include the items such as: scope of work, tidal data, general site plan map, line designation map, calibration procedures used, horizontal and vertical accuracies, and any other pertinent information to describe the purpose, methods, and results obtained.

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Survey procedures, data collection equipment, methods and densities, and equipment calibration for this work shall follow the criteria given in EM 1110-2-1003 for class of survey specified in task orders to this basic contract. Instructions contained in this specification will contain specific survey limits and any modifications to EM 1110-2-1003 for the particular project.

Survey QC Log (Attachment 1): The Contractor shall complete a Survey QC Log for all Contractor-performed surveys. The Survey QC Log shall be completely filled out. The Survey QC Log shall be included with the electronic submission and a copy shall be attached to the daily CQC Report.

The Basic Survey Documentation Submittal shall also include the following:

1.4.1.1 Plotting

Plans and cross sections shall be plotted in pdf format and submitted electronically unless otherwise noted. All hydrographic surveys plans shall be plotted at the same plan scale labeled on the contract drawings. Cross sections shall be plotted and scaled to fit one cross section per 8-1/2" by 11" sheet. See the contract drawings for a map detailing the work site and section limits. The Government will provide the contract drawings in AutoCAD (cal) format.

1.4.1.2 Cross Sections

Cross sections shall be plotted on every 100-foot station per Government furnished line (lnw) file. Survey lines shall duplicate those shown in the attached construction drawings. Cross sections shall extend 100 feet past the slope-grade intersect point. Each cross-section shall show the project template including project depth, side slopes extending from the project depth line, and the contract pay lines. The Before-dredge and progress payment survey lines will be shown on the same section and shall be clearly discernible from each other. A legend with the dates of each survey shall be included.

1.4.1.3 Depth Elevation Measurements

The Contractor shall provide a full TIN model of the bottom of the dredged area plotted out showing in plan view the 100-foot station lines. Depth soundings shall be plotted along the 100-foot station lines to a 5'x5' bin size using Average Mean Depth analysis. The Contractor shall use color shading and topographic elevation lines to clearly identify areas above and below the project depth. The top of the return signal trace shall be the point of interpretation of soundings.

1.4.1.4 Electronic Copies of Surveys

Electronic copies of surveys performed including point files, calculations and a plot of the soundings shall be provided by the Contractor. The electronic point file shall be the same file that the Contractor uses for volume computations. All raw, unedited data, along with all files and associated data used for editing, along with a copy of the survey documentation, updated as necessary, shall be submitted on write-once CD- ROMs to the Government. All electronic survey data shall contain a string of

Section 01 32 23 Page 8 information in the title that clearly identifies the contents of the data.

The string shall uniquely identify the project and acceptance reach The Contractor shall provide a description of any changes that have been made to the originally submitted survey documentation. Contractor may use web-base secure “sharepoint” file server systems, such as AMRDEC S.A.F.E., to transmit survey data files electronically to the Government.

1.4.2 Progress Payment Survey Documentation

Within 5 working days of a progress payment survey, the Contractor shall submit the documentation described below.

1.4.2.1 Quantity Calculations

The Contractor shall submit the calculations and a tabulation of quantities on a weekly basis.

1.4.2.2 Printed Record

Printed copies of volume tabulations and the cross-sectional plots shall be submitted by the Contractor with the Contractor's payment request. The Contracting Officer Representative will reject payment requests for dredging that are not supported by verified survey data and calculations.

1.4.2.3 Data Review

The Government will review the survey documentation for clarity and completeness before accepting the progress payment request for processing in accordance with contract clause 52.232-27: Prompt Payment for Construction Contracts.

1.4.3 Final Payment Survey Documentation

The survey documentation to be submitted by the Contractor with a final payment request is identical to the Progress Payment Survey Documentation.

The Government withholds the right to use the Contractor's after-dredge survey data and or before dredge survey data as well by written notification from the Contracting Officer Representative.

1.4.4 Equipment Data

Prior to the start of dredging operations, the Contractor shall submit data on the surveying equipment to the Contracting Officer Representative.

Typical information shall, as a minimum, include the name, model, and year of manufacture of the electronic equipment, the electronic frequencies of the horizontal positioning and depth finding equipment, and the manufacturer's stated positioning accuracy and capability of the equipment proposed for usage. The vessel/equipment that performs a survey shall be recorded in the Survey QC Log, Attachment 1 to this Section.

The Contractor shall utilize adequate surveying equipment and controls as prescribed in EM 1110-2-1003 Table 9-6 or 10-1 and chapter 16, as appropriate

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1.4.5 Software

Prior to the start of dredging operations, the Contractor shall submit data on the surveying software to the Contracting Officer Representative. Use site design or survey software in the integrated hydrographic survey system.

The software shall support the varied Corps dredging templates outlined in Chapter 15 of EM 1110-2-1003 and shall be capable of computing dredged quantities. Provide the government the software, software license, and any other entity necessary to allow the government full access in reviewing the raw and unedited data described in paragraph 1.4.1.4.

1.4.6 Survey Contractor Qualifications

The Contractor shall submit evidence of State of California survey licensure for the survey contractor as specified in 1.1 Introduction.

2 PART 2 PRODUCTS

Not Used.

3 PART 3 EXECUTION

3.1 SURVEYING PROCEDURES

3.1.1 Horizontal Positioning Procedures and Accuracies

The Contractor vessel positioning systems and/or modes utilized on this contract shall conform to the allowable horizontal positioning criteria in EM 1110-2-1003, based on the class of survey required. The Contractor may be required to demonstrate to the Government that his positioning system, mode, and/or procedures are capable of meeting the accuracy requirements in EM 1110-2-1003.

3.1.1.1 Positioning

Positioning shall be accomplished by a fully integrated and automated hydrographic survey system utilizing a standard to the industry Differential Global Positioning System (DGPS) with a manufacturer’s stated positional accuracy of one (1) meter or less. DGPS corrections shall be obtained from the same geostationary satellite station or base station for all surveys.

Alternately, Real Time Kinematic (RTK) Differential GPS may be used to obtain accurate, real-time horizontal positioning.

3.1.2 Reference Horizontal Control Data

Unless otherwise indicated, the Government will provide sufficient existing project control from which hydrographic surveys may be extended. This control shall be presumed to meet the accuracy requirements in EM 1110-2- 1003. When hydrographic surveys are required to be controlled from particular existing monuments, this will be noted in the drawings furnished.

All horizontal and vertical monuments are known to be in-place as of the date shown on the drawings. Descriptions for each point are in the contract drawings. The Contractor's field representative shall immediately notify the

Section 01 32 23 Page 10 government's Contracting Officer Representative if existing control points have been disturbed.

3.1.3 Depth Measurement Procedures And Calibration

a. General. The contractor's field survey forces shall have the capability to obtain manual (lead line and sounding pole) and multi-beam acoustic depth measurements during this contract. All depth measurement equipment, procedures, and quality control shall strictly conform to the minimum criteria standards in EM 1110-2-1003. The government reserves the right to inspect any depth measurement equipment employed during this contract.

b. Technology. All official surveys to include the before-dredge, after-dredge and progress payment surveys will be based on multi-beam technology as specified in EM 1110-2-1003.

c. Depth measurement precision/accuracy. Depth measurements including depth observation precision and resolution shall meet the vertical accuracy standards prescribed in EM 1110-2-1003.

d. Manual depth measurements. Lead line and sounding pole instruments shall have the weight and dimensions given in EM 1110-2-1003. {note;

any variations from these standards due to unique project conditions, such as suspended sediment.} Lead lines and sounding poles shall be marked, read, and calibrated in accordance with the criteria in EM 1110-2-1003. Line/pole calibrations shall be recorded in standard field survey books. These calibration records shall be retained for inspection if necessary.

e. Acoustic depth measurement. A survey quality multi-beam echo sounder shall be used for work performed on this contract. The device must be capable of providing the required vertical accuracies. The echo sounding recorder shall be in good condition and free from instabilities which may affect the quality of the data.

f. Acoustic calibration requirements. Acoustic depth sounders shall be calibrated in strict conformance with the allowable methods, tolerances, and other criteria given in EM 1110-2-1003. Any deviation from these criteria must be approved by the Contracting Officer Representative. Depth sounding equipment shall be calibrated such that the tolerances given in EM 1110-2-1003 are achieved. Bar/Ball check, velocity checks, patch test, and performance tests must be recorded in the Survey QC Log. Failure to perform and submit evidence of calibration for each day's work will result in the work being deemed unsatisfactory and requiring correction at the contractor's expense.

External checks of the calibration equipment or vessel draft/squat shall also be performed as required in EM 1110-2-1003. These periodic checks shall be recorded in a standard bound survey book and retained aboard the vessel for review by government or contracted construction inspectors.

g. Onsite Vessel-to-Vessel Calibration. Prior to all surveys, the Contractor shall conduct a vessel-to-vessel onsite calibration session with a Government vessel. This requirement can be waived by the Government. Survey lines taken from the Vessel-to-Vessel Calibration shall be compared and checked on site for accuracy and consistency. The

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Contractor and Government must reach consensus of survey results prior to proceeding with the survey. The calibration session will be scheduled by the Government in conjunction with the Contractor.

Repeated cancellation of vessel to vessel calibration sessions will not be tolerated and will result in the Government requesting that the 3rd party survey company be replaced with a company that will comply with the contract requirements.

3.1.4 Vertical Reference Datum

Tide Monitoring. The Contractor shall provide an approved tidal level monitoring system. This system shall be adjusted to correspond with the dredging area tidal zone and shall be located as indicated in the contract documents. Real Time Kinematic (RTK) Differential GPS may be used to obtain accurate, real-time elevations (depths) without observing tidal data.

3.2 CONTRACTOR SURVEY CERTIFICATION

3.2.1 Contractor's Representative

The Contractor may provide a representative on board the Government survey vessel for all before- and after-dredge surveys. If the Contractor elects to not have a representative on board then the contractor must sign the acceptance of the survey data. The Contractor representative shall be knowledgeable of hydrographic surveying procedures, techniques, equipment, calibration methods and accuracy limitations. The Contractor representative shall observe and review, in progress, the adequacy and accuracy of the survey for payment purposes and for the potential existence of collusion, fraud or obvious error in the data.