W912BU-15-B-0009_Specs_AM3.PDF

Offers 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 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 your 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.

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

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT 1. CONTRACT ID CODE

2. AMENDMENT/MODIFICATION NO. 3. EFFECTIVE DATE 4. REQUISITION/PURCHASE REQ. NO. 5. PROJECT NO. (If applicable)

7. ADMINISTERED BY (If other than Item 6) CODE

STANDARD FORM 30 (REV. 10-83)

Prescribed by GSA FAR (48 CFR) 53.243

FACILITY CODE

9A. AMENDMENT OF SOLICITATION

NO.

9B. DATED (SEE ITEM 11)

10A. MODIFICATION OF CONTRACT/ORDER NO.

10B. DATED (SEE ITEM 13)

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

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

12. ACCOUNTING AND APPROPRIATION DATA (If required) copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;

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

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

CHECK ONE 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)

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.

15C. DATE SIGNED

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

16C. DATE SIGNED

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

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

PAGE OF PAGES

6. ISSUED BY CODE

8. NAME AND ADDRESS OF CONTRACTOR (No., street, county, State and ZIP Code) (X)

CODE

15B. CONTRACTOR/OFFEROR

(Signature of person authorized to sign)

16B. UNITED STATES OF AMERICA

(Signature of Contracting Officer)

NSN 7540-01-152-8070

Previous edition unusable

W912BU

Dredging and Rock Removal, Delaware River Main Channel Deepening, PA, NJ, and DE

THIS AMENDMENT HEREBY EXTENDS THE BID OPENING DATE TO 3 SEPTEMBER 2015 AT 2:00 P.M.

E5CTCSGF

US ARMY ENGINEER DISTRICT, PHILADELPHIA

WANAMAKER BUILDING, 100 PENN SQUARE EAST

PHILADELPHIA, PENNSYLVANIA 19107-3390

US ARMY ENGINEER DISTRICT, PHILADELPHIA

POC: SANDI FLETCHER

WANAMAKER BUILDING, 100 PENN SQUARE EAST

PHILADELPHIA, PENNSYLVANIA 19107-3390

W912BU-15-B-0009

08/17/2015

07/22/2015

X

This page was intentionally left blank for duplex printing.

Amendment No. 0003

IFB W912BU-15-B-0009

14. DESCRIPTION OF AMENDMENT (continued)

a. RFI’s with RESPONSES: RFI’s with responses, annotated Amendment No.

0003 are attached to this amendment.

b. SECTION 01 53 30 – COORDINATION FOR CONTRACTOR-FURNISHED DISPOSAL AREAS: The amendment description for Section 01 53 30 was inadvertently omitted from Amendment No. 0001. Please delete Section 01 53 30 in its entirety, and substitute revised Section 01 53 30, annotated Amendment No. 0003, attached hereto.

c. SECTION 35 20 23 – DREDGING: Please delete page 11 of this section and substitute revised page 11, annotated Amendment No. 0003, attached hereto.

d. SECTION 35 30 00 – UNDERWATER DRILLING AND BLASTING: Please delete page 16 and 17 of this section and substitute revised pages 16 and 17, annotated Amendment No. 0003, attached hereto.

e. CONTRACT DRAWINGS: Please delete Drawing C-102 in its entirety and substitute revised Drawing C-102 with the latest revision date of 12 August 2015, attached hereto.

f. Please indicate receipt of this amendment on Standard Form 1442 (SOLICITATION, OFFER, AND AWARD) as Amendment No. 0003. Failure to acknowledge all amendments may be cause for rejection of the bid.

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SECTION 01 53 30

COORDINATION FOR CONTRACTOR-FURNISHED DISPOSAL AREAS

PART 1 GENERAL

1.1 SUMMARY

This section includes the coordination requirements for any disposal areas furnished by the Contractor. The Contractor has the option of furnishing his own disposal areas for the contract work, subject to the required approvals specified herein, in lieu of the Government-furnished disposal area specified herein. The coordination requirements specified herein also pertain to any rehandling basins proposed for use by the Contractor.

1.2 GENERAL

All expenses incurred in connection with providing and making available such Contractor furnished disposal areas shall be borne by the Contractor, and all material deposited thereon, and all operations in connection therewith shall be entirely at the Contractor's risk.

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. The following shall be submitted in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:

SD-01 Preconstruction Submittals

Federal/State Permits, WQ Certificates, Landowner Permission and Descriptions; G,COR.

Prior to commencing work obtain all applicable Federal and State approvals for Contractor furnished disposal areas. Furnish copies of the Federal and State permits obtained, a copy of a State Water Quality Certificate, if required, and written permission from the owners of the properties to be used for the disposal areas and access thereto. Written permission of the owners shall be assigned to the bidder and not to a subcontractor. In the event no approvals are required, the Contractor shall submit documents indicating that agency coordination has taken place. The Contractor shall also complete and submit the "Description of Disposal Areas" form, which is attached to this section.

PART 2 PRODUCTS (Not Applicable)

PART 3 EXECUTION

3.1 REQUIRED COORDINATION

3.1.1 Agency Approval

The Contractor shall coordinate with and submit with his bid written approval from the Federal and applicable state agencies as listed:

a. Federal Agency:

Section 01 53 30 Page 1

District Engineer U.S. Army Corps of Engineers Philadelphia District Wanamaker Building 100 Penn Square East Philadelphia, PA 19107-3390

b. State Agencies:

New Jersey Department of Pennsylvania Department of Environmental Protection Environmental Protection Office of Dredging and Sediment Technology Coastal Zone Management Program 401 East State Street P.O. Box 2063 P.O. Box 028 400 Market Street 15th Floor Trenton, NJ 08625 Harrisburg, PA 17105-2063

3.1.2 Water Quality Certificate

Title 33 U.S.C. 1341 requires the acquisition of a Water Quality Certificate from the appropriate state water pollution control agencies to the effect that dredging and operation of any Contractor furnished disposal area will be conducted in a manner which will not violate applicable water quality standards. It is necessary, therefore, that all bids based on the use of such areas be accompanied by a Certificate from the following state agencies:

New Jersey Department of Environmental Protection Office of Dredging and Sediment Technology 401 East State Street P.O. Box 028 Trenton, NJ 08625

Pennsylvania Department of Environmental Protection Southeast Regional Office 2 East Main Street Norristown, PA 19401

3.2 MEASUREMENT AND PAYMENT

No separate payment will be made for any work specified in this section and all costs in connection therewith shall be included in the costs of all the bid items.

-- End of Section --

Section 01 53 30 Page 2

DESCRIPTION OF DISPOSAL AREAS

(If other than that stipulated in the Specifications) (To be attached to Bid Form)

1. AREA NO. ____________

LOCATION: (Sketch attached. Marked prints of Contract Drawings may be used.)

Area= ______________Acres

Capacity of Disposal Area _______________________cubic yards.

Name and Address of Owner________________________________________________

2. AREA NO. ____________

LOCATION: (Sketch attached. Marked prints of Contract Drawings may be used.)

Area= ______________Acres

Capacity of Disposal Area_______________________cubic yards.

Name and Address of Owner________________________________________________

The written permission of all owners of the above substituted areas is attached.

Section 01 53 30 Page 3 effluent density exceeds the criteria specified in Paragraph "CONTROL OF DISPOSAL AREA EFFLUENT IN UPLAND DISPOSAL AREAS". Two possible corrective actions are: 1) weir height may be raised in order to maintain acceptable effluent quality, provided that the required freeboard is not violated, or

2) the rate of discharge of dredged material into the disposal area may be reduced or suspended. In addition, manage the sluice height in accordance with the special requirements described under Paragraph "Sluice Management" below.

3.3.2 Sluice Management

To prevent "floating" of the sluice during filling and ensure its proper performance, follow the special sluice management practices listed below.

Refer to the attached figure at the end of this section for sluice box nomenclature.

a. Fill the inlet box on each sluice with water to stabilize the box and prevent it from floating. Such filling shall be done before raising the entire sluice elevation (i.e. before boarding up the inlet box) and such that the following criteria is maintained at all times:

At no time shall the head difference (i.e., difference in water elevations) between the inside and outside of the inlet box be more than half the height of water outside the box. For example, if it is anticipated that there will eventually be 6 feet of water outside the box, first allow half as much water into the inlet box, i.e., 3 feet of water, before completely boarding up the inlet box.

b. Maintain the top of exterior sluice boards around the inlet box at the same elevation to the maximum extent possible.

c. Maintain the top of exterior sluice boards around the discharge box at least 8 inches, i.e., minimum 2 boards, above the top of the exterior flashboards around the inlet box.

d. Set the interior weir between the inlet and discharge boxes 1 to 2 feet lower than the elevation of the exterior flashboards around the inlet box.

e. Remove and properly dispose of all floating debris lodged in and around the sluice boxes.

f. In order to minimize leaks, place burlap bags or an approved equivalent between the flashboards to act as a gasket and seal gaps that may exist between the boards. Weight or wedge flashboards into place to prevent them from floating.

3.3.3 Effluent Sampling and Testing

Monitor the effluent from the disposal areas as described in this section.

Maintain awareness of the effluent quality by sampling throughout the operating period. The sampling required in this section is not to be confused with sampling and analysis that is to be performed by others for the purpose of reporting data to Pennsylvania DEP

Section 35 20 23 Page 11

3.3.3.1 Effluent Density

Take and test samples for density determination and record the results.

Take samples at the sluice as often as required and at least twice daily at times when the flow is at the maximum rate and after the dredge has been operating continuously for not less than the time required for solids in suspension to flow from the discharge pipe to the sluice. Increase the minimum frequency of sampling at the sluice when effluent density increases or nears the maximum specified. Record density determinations, including times of sampling, on the Daily Report of Operations forms required in Paragraph "CONTRACTOR QUALITY CONTROL" of this section. Fax the hydrometer readings (expressed in Grams/Liter) daily to the US Army COE Philadelphia District Office, Operations Division, at 215-656-6922 or provide them directly to the Government Representative in the field. Collect each sample at the sluice from the mixture flowing over the discharge box interior weir as shown on the attached figure. Make a composite sample by partially filling, without overflow, a one-quart container for five or six consecutive intervals such that a total of about 1 gallon is collected and combined in a bucket or other suitable container. Determine the composite sample density by the hydrometer method, no more than 5 minutes after collecting the first one-quart container sample, otherwise discard the sample and make up a new one.

a. Hydrometer Method: The hydrometer used to determine the composite sample density shall be a soil hydrometer conforming to ASTM E100, Hydrometer No. ASTM 152H, -5 to +60 grams per liter. This specified hydrometer reads density directly in grams per liter, so no other computations are required to determine density. Submit the proposed hydrometer brand and model for approval prior to commencing dredging operations. Use the hydrometer as specified by the manufacturer.

3.3.4 Records

Submit records of disposal area effluent measurements and corrective action taken daily to the Contracting Officer.

3.3.5 Timber Flashboards

Prior to commencement of pumping, provide a sufficient number of flashboards for the sluice as required for the retention of dredged material under this contract and ensure that the entire sluice length is effective. Brush applied preservative treatment shall be available at the site and all cut surfaces shall be heavily brushed as specified in AWPA M4.

3.3.6 Continuing Effluent Control

Upon completion and acceptance of a work area, provide continuing, intermittent labor to ensure that effluent control is continued beyond the completion of dredged discharge into the disposal area. Continue the control, including the removal of flashboards, until water impoundment is reduced to that which existed prior to the commencement of disposal into this area. The time required for effluent control beyond completion and acceptance of the work assignment will not be considered part of the completion time for the contract.

Section 35 20 23 Page 12

Amendment No. 0002 underwater blasting, and shall be economical to use. Characteristics to evaluate the explosive that concern environmental factors include, sensitiveness, water resistance, fumes, flammability and temperature resistance.

2.2.1 Explosives

The following shall be required when bulk explosives are used:

a. Explosives delivered to the work area shall be inventoried or weighed by a certified weigh master at the transfer location nearest the work area to determine the actual quantity of explosives delivered each day.

b. Explosives are known to deteriorate with age. All explosives used on the project are required to be one year or less of age. Date codes on cartridge explosives shall be used to determine age of product. No blasting product will be brought on the project if the date codes are missing.

c. Bulk explosives such as ammonium nitrate and fuel oil may, due to evaporation or improper mixing, not contain the proper amount of diesel oil. Other explosives such as emulsions and watergel explosives may not be properly mixed and produce a low energy release. Product that does not meet the manufacturer's specifications shall not be used on the project.

d. Storage of all explosives, blasting agents or detonators, shall comply with all Federal, State and local regulations governing explosive storage. The Contractor shall include storage plans along with the type of magazine or explosive storage facility to be used for the project. The Contractor shall be required conform to record keeping, placarding, safe distances, and all other requirements concerning storage.

e. Each drill frame shall measure the quantity of explosives loaded in all holes with weigh scales or flow metering devices to within 0.5% of the design quantity for each hole. The total of all loaded holes shall be checked with the total quantity delivered prior to subsequent bulk deliveries. Should the bulk quantity delivered vary from the recorded quantity loaded and detonated, all measuring devices and or meters shall be recalibrated to within the specified accuracy.

2.2.2 Primers

Primers are explosive units that contain an initiator, and are used to detonate the borehole charge. Each hole loaded with emulsions or slurry shall be initiated with two separate downlines and two primers. At least one primer shall be secured in the hole with a mechanical lock-in system or spider to prevent extraction of the priming charge.

2.2.3 Boosters

Boosters are explosive units that are placed in the borehole along with the borehole charge to add additional energy into blast.

2.2.4 Delays

The Contractor shall incorporate the use of delays, greater than or equal

Section 35 30 00 Page 15 to 25 milliseconds, into the blast pattern design to reduce the peak particle velocities generated during blasting.

Delay elements in blasting caps are known to deteriorate with age. All blasting caps used on the project are required to be one year or less of age. In addition, to ensure the accuracy of firing times of blasting caps, it is required that each cap period come from one lot number. Mixing of lot numbers for any one cap period is prohibited.

2.2.5 2.2.5 Initiation Systems

The initiation system transfers the detonation signal to the blast pattern at a precise time. Employ a non-electric initiating system for use during blasting activities. Electric or electronic initiating systems and detonating cord shall not be allowed at any time.

2.2.6 Stemming

Use appropriate size stemming material and appropriate stemming distance, to maximize the blast design. The stemming material shall consist of clean, crushed stone of gravel size.

PART 3 EXECUTION

3.1 BLASTING METHODS AND PROCEDURES

Do not blast unless all requirements of Section 01 57 21 PROTECTION AND MONITORING OF STURGEON DURING ROCK BLASTING have been met, or if sturgeon monitoring is halted.

3.1.1 General

The blasting program and methods shall be those developed by the test blasting program and procedure to accomplish the excavation shown on the contract drawings in accordance with the procedures specified herein. The Contractor shall also take appropriate measures for controlling blast damage which shall include but are not limited to:

a. Choosing a suitable ignition pattern with millisecond delay detonators to minimize the instantaneous impulse.

b. Using appropriate charges in each delay to control vibrations and manage breakage.

c. Taking precautions to avoid flashover, which shall include the following measure unless otherwise allowed by the Contracting Officer:

Optimizing the depth at the top of hole left uncharged to prevent against flashover yet obtain necessary breakage.

d. One person shall be charged with overall development of pattern design, loading and connecting the explosives and may supervise subordinates, who also shall have blasting credentials to accomplish the same duties.

e. Proper lighting plant shall fully illuminate the drilling and loading barge(s) when work is being conducted without full daylight.

Drilling shall be vertical with a hole diameter of 6-inches or smaller. Blast holes shall be accurately positioned using a Differential Global Positioning System (DGPS) and recorded with

Section 35 30 00 Page 16 electronic drill monitoring.

f. Determine a safe means to drill, load and connect the firing lines to the submerged borings. The vertical loading casing shall be seated into rock and accurately positioned by modern survey procedures.

3.1.2 Blasting

Blasting shall be confined to daylight hours during the period from 2 hours after sunrise to 1 hour before sunset, but shall not be conducted before 9:00 A.M. or after 6:00 P.M. on the day of blasting. Blasting shall not be conducted when temperature inversions or heavy, low-level cloud cover exists.

3.1.3 Vibration Control

Where blasting is necessary, employ a specialist qualified in vibration control methods capable of analyzing results obtained from seismograph readings. A minimum of 30 days prior to commencement of blasting operations, the Contractor shall provide the Contracting Officer with credentials of the seismic specialist to include, but not limited to, past experience, training, and education, and have working a knowledge of State and local laws and regulations which pertain to blasting. The acceptability of the specialist is subject to the approval of the Contracting Officer. The Contractor's seismic specialist shall place vibration monitors, consisting of three component seismographs, on all historic structures, identified during the Pre-Blast Survey, and shall determine the placement of at least 8 additional vibration monitoring machines per blast area (minimum 4 per shore), unless greater than 1,500 feet from blast area, with approval of the Contracting Officer and shall be retained for loss control should contract blasting operations result in claims or complaints. The vibration monitoring plan shall identify the type of anchoring devices to be employed at various monitoring sites.

Structures that should have monitoring machines include, at least, bulkheads, hazardous materials storage areas and buried utilities. In addition, vibration monitoring shall be required in the vicinity of the underground storage caverns, located on the Marcus Hook Refinery property.

Blasting is prohibited within 500 ft of these underground storage caverns.

Coordinates for the approximate locations of the caverns are:

Cavern Northing Easting Cavern Northing Easting Cavern Northing Easting

#1 358,351 230,733 #3 360,639 233,720 #5 359,125 233,446

358,351 230,602 361,097 233,470 359,432 233,275

358,568 230,913 361,196 233,650 359,553 233,553

358,378 230,043 360,739 233,901 359,275 233,722

Section 35 30 00 Page 17

Amendment No. 0002

Cavern Northing Easting Cavern Northing Easting Cavern Northing Easting

#2 360,319 233,673 #4 358,422 232,552

360,640 232,864 358,630 232,437

360,815 233,210 358,718 232,598

360,490 233,388 358,510 232,711

At least one vibration monitoring machine must be placed between the blast and the nearest structure on a natural ground surface. This may require utilizing underwater locations. The other machines must be secured in the ground near identified maximum vibration level at any vessel or structure which is vulnerable to damage should not exceed the peak particle velocity of the appropriate municipality and geographical jurisdictions, or be subject to an unacceptable vibration frequency.

Both written and telephone report on vibration intensity shall be submitted within 24 hours when specifically requested by the Contracting Officer or, without request, when such intensity exceeds a peak particle velocity of

2.0 inches per second for any one of the 3 perpendicular planes of motion.

Blasts shall be designed and conducted to achieve either a minimum scaled distance of 90 or meet the maximum allowable peak particle velocity indicated by Figure 1 of Pa Code Chapter 211.151(c) and not exceed the noise levels specified in Table 1 of Pa Code Chapter 211.151(c) at the closest building not owned or leased by the permittee or its customer. The Contractor will perform test blasts, which will determine a safe peak particle velocity (PPV) for all structures within the blast areas. The Contractor shall follow the following vibration limits for the structures listed below:

Historic Structures PPV <0.5 in/sec

Residential Structures in PA, NJ & DE PPV <2.0 in/sec

Other Structures PPV <2.0 in/sec

The Contractor shall submit a copy of the record in tabular form for each blast to the Contracting Officer no later than 24 hours after each blast, with a written report on velocity and vibration effects. This should also include location of blast, size, spacing, number, top and bottom elevations of holes, type of explosives, amount of explosives and stemming per hole and delay, type of delays, sequence and pattern, distance from the blast to the vibration monitoring machine, and any other pertinent information.

3.2 MEASUREMENT AND PAYMENT

3.2.1 Mobilization and Demobilization

All costs connected with the mobilization and demobilization of all of the Contractor's drilling and blasting plant and equipment will be paid for at the contract lump sum price for this item. Sixty percent of the lump sum price will be paid to the Contractor upon completion of his mobilization at the first work area. The remaining forty percent will be included in the final payment for work under this contract.

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