Amendment0001.pdf

W81LJ831291343

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

W912PM-13-B-0002, Shoreline Erosion Protection, Southport, NC is amended as follow s:

a. CLIN 0006 in the bid schedule has increased from 225 LF to 320 LF.

b. Changes to the specifications and draw ings can be found on the attached Summary of Changes page.

c. The time and date of bid opening remains unchanged.

d. All other terms and conditions remain unchanged.

1. CONTRACT ID CODE PAGE OF PAGES

J 1 3

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

16C. DATE SIGNED

BY 21-Aug-2013

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 W912PM-13-B-0002

X 9B. DATED (SEE ITEM 11)

26-Jul-2013

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 is extended, X 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 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

21-Aug-2013

CODE

U S ARMY CORPS OF ENGINEERS

WILMINGTON DISTRICT

ATTN: DANNY KISSAM

69 DARLINGTON AVE

WILMINGTON NC 28403-1343

W912PM 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

W912PM-13-B-0002

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

SECTION 00010 - SOLICITATION CONTRACT FORM

CLIN 0006

The pricing detail quantity has increased by 95.00 from 225.00 to 320.00.

W912PM‐13‐B‐0002

SUMMARY OF CHANGES

SECTION 01 57 23 – TEMPORARY STORM WATER POLLUTION CONTROL

Delete all 7 pages in section 01 57 23 in their entirety and replace with attached revised 7 pages.

DRAWINGS

Delete plate C‐1 in its entirety and replace with revised plate C‐1 of this amendment.

NOTE:

Text that is added or revised by this amendment is replaced in its entirety and underlined and/or printed in bold and/or stamped appropriately.

The text changes may have necessitated reformatting of subsequent text or pages. If this is the case, those pages have also been issued as amended pages but are not underlined or bold text.

(End of Summary of Changes)

Encls

(As stated)

Shoreline Erosion Protection W912PM-13-B-0002 Bay Street Lift Station, Brunswick Co, Southport, NC

SECTION TABLE OF CONTENTS

DIVISION 01 - GENERAL REQUIREMENTS

SECTION 01 57 23

TEMPORARY STORM WATER POLLUTION CONTROL

PART 1 GENERAL

1.1 REFERENCES

1.2 SYSTEM DESCRIPTION

1.3 EROSION AND SEDIMENT CONTROLS

1.3.1 Stabilization Practices

1.3.1.1 Unsuitable Conditions

1.3.1.2 Protection of Erodible Soils

1.3.2 Structural Practices

1.3.2.1 Temporary Silt Fences

1.3.3 Seeding and Mulching

1.4 SUBMITTALS

1.5 MEASUREMENT AND PAYMENT FOR TEMPORARY SILT FENCE

1.5.1 Staging Area and Access Route to Tidal Beach

1.5.2 Excavated Soil

1.5.3 Stockpile Area

PART 2 PRODUCTS

2.1 COMPONENTS FOR TEMPORARY SILT FENCES

2.1.1 Wire Fabric

2.1.2 Filter Fabric

2.1.3 Silt Fence Posts

2.1.4 Mill Certificate or Affidavit

2.1.5 Identification, Storage, and Handling

PART 3 EXECUTION

3.1 INSTALLATION OF SILT FENCES

3.2 FIELD QUALITY CONTROL

3.2.1 Silt Fence Maintenance

3.3 INSPECTIONS

3.3.1 General

3.3.2 Inspections Details

3.3.3 Inspection Reports

3.4 EXISTING SILT FENCE

-- End of Section Table of Contents --

SECTION 01 57 23 Page 1 Revised by Amendment 0001

SECTION 01 57 23

TEMPORARY STORM WATER POLLUTION CONTROL

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 within the text by the basic designation only.

ASTM INTERNATIONAL (ASTM)

ASTM D4439 (2011) Geosynthetics

ASTM D4491 (1999a; R 2009) Water Permeability of Geotextiles by Permittivity

ASTM D4533 (2011) Trapezoid Tearing Strength of Geotextiles

ASTM D4632 (2008) Grab Breaking Load and Elongation of Geotextiles

ASTM D4751 (2004) Determining Apparent Opening Size of a Geotextile

ASTM D4873 (2002; R 2009) Identification, Storage, and Handling of Geosynthetic Rolls and Samples

1.2 SYSTEM DESCRIPTION

The work consists of implementing the storm water pollution prevention measures to prevent sediment from entering streams or water bodies as specified in this Section in conformance with the requirements of Section

01 57 20.00 10 ENVIRONMENTAL PROTECTION.

1.3 EROSION AND SEDIMENT CONTROLS

The controls and measures required of the Contractor are described hereinafter.

1.3.1 Stabilization Practices

The stabilization practices to be implemented include temporary seeding, mulching, etc. On the daily CQC Report, record the dates when the major grading activities occur, (e.g., clearing, excavation, embankment, and grading; when construction activities temporarily or permanently cease on a portion of the site; and when stabilization practices are initiated.

Initiate stabilization practices as soon as practicable, in any portion of the site where construction activities have temporarily or permanently ceased.

SECTION 01 57 23 Page 2 Revised by Amendment 0001

1.3.1.1 Unsuitable Conditions

Where the initiation of stabilization measures by the fifth day after construction activity temporarily or permanently ceases or is precluded by unsuitable conditions caused by the weather, initiate stabilization practices as soon as practicable after conditions become suitable.

1.3.1.2 Protection of Erodible Soils

Immediately finish the earthwork brought to a final grade, as indicated or specified, and protect the side slopes and back slopes upon completion of rough grading. Plan and conduct earthwork to minimize the duration of exposure of unprotected soils.

1.3.2 Structural Practices

Structural practices shall be implemented to divert flows from exposed soils, temporarily store flows, or otherwise limit runoff from exposed areas of the site. Structural practices shall be implemented in a timely manner, during the construction process, to minimize erosion and sediment runoff. Structural practices shall include as a minimum temporary silt fence.

1.3.2.1 Temporary Silt Fences

The Contractor shall construct temporary silt fence before earthwork operations begin and/or at other times when directed by the Contracting Officer or his/her designated representative. The Contractor shall construct temporary silt fences as a temporary structural practice to control and minimize erosion and sediment runoff from the site. The Contractor shall construct the temporary silt fences at locations shown on the plans or as directed by the Contracting Officer or his/her designated representative and as required to prohibit sediment transportation. Prior to installation, the Contractor shall stake out the location of the temporary silt fence for review and approval by the Contracting Officer or his/her designated representative. The temporary silt fence locations shall be adjusted in the field if necessary to conform to the actual topography and improve sediment control. See drawings for temporary silt fence detail. Silt fences shall be properly installed to effectively retain sediment. The Contractor shall maintain the temporary silt fence in a satisfactory condition for the duration of the project or until its removal is requested by the Contracting Officer or his/her designated representative. After vegetation is established, the Contracting Officer or his/her designated representative will determine if the temporary silt fence is to be removed or left in place. If the temporary silt fence is removed, it will become the property of the Contractor. After the temporary silt fence has served its purpose at one location, it may be used at other temporary locations providing it is still in satisfactory condition.

1.3.3 Seeding and Mulching

Disturbed ground shall be seeded and mulched in accordance with Section

32 92 19 SEEDING.

1.4 SUBMITTALS

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

submittals not having a "G, A" designation are for information only. When

SECTION 01 57 23 Page 3 Revised by Amendment 0001 used, a designation following the "G, A" designation identifies the office that will review the submittal for the Government. Submit the following in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:

SD-06 Test Reports

Erosion and Sediment Controls

SD-07 Certificates

Mill Certificate or Affidavit

Certificate attesting that the Contractor has met all specified requirements.

1.5 MEASUREMENT AND PAYMENT FOR TEMPORARY SILT FENCE

1.5.1 Staging Area and Access Route to Tidal Beach

The quantity of temporary silt fence to be paid for shall be the actual number of linear feet of temporary silt fence installed in place at the access route to tidal beach and around the staging area and accepted. The quantity of temporary silt fence measured as provided above will be paid for at the contract unit price per linear foot for "Temporary Silt Fence" as listed in the Bidding Schedule. Such price and payment will be full compensation for furnishing all materials, tools, equipment and all incidentals necessary to furnish, install, maintain and remove the temporary silt fence.

1.5.2 Excavated Soil

All costs for labor, materials, tools, equipment, and incidentals necessary to furnish, install, and maintain temporary silt fence around excavated soil placed temporarily above the mean high water line shall be included in the lump sum price for Mobilization and Demobilization of the Bidding Schedule.

1.5.3 Stockpile Area

All costs for labor, materials, tools, equipment, and incidentals necessary to furnish, install, and maintain temporary silt fence around excavated soil disposed of within the stockpile area shall be included in the lump sum price for Mobilization and Demobilization of the Bidding Schedule.

PART 2 PRODUCTS

2.1 COMPONENTS FOR TEMPORARY SILT FENCES

2.1.1 Wire Fabric

Provide woven wire fabric with a minimum 32-inch width with a minimum of 6 horizontal line wires with 12" stay spacing. Top and bottom wires shall be 10 gauge. Intermediate wires shall be 12.5 gauge.

2.1.2 Filter Fabric

Provide geotextile that complies with the requirements of ASTM D4439, and consists of polymeric filaments which are formed into a stable network such that filaments retain their relative positions. The filament shall consist

SECTION 01 57 23 Page 4 Revised by Amendment 0001 of a long-chain synthetic polymer composed of at least 85 percent by weight of ester, propylene, or amide, and contains stabilizers and/or inhibitors added to the base plastic to make the filaments resistant to deterioration due to ultraviolet and heat exposure. Provide synthetic filter fabric that contains ultraviolet ray inhibitors and stabilizers to assure a minimum of six months of expected usable construction life at a temperature range of 0 to 120 degrees F. The filter fabric shall meet the following requirements:

FILTER FABRIC FOR SILT SCREEN FENCE

PHYSICAL PROPERTY TEST PROCEDURE STRENGTH REQUIREMENT

Grab Tensile Elongation (percent)

ASTM D4632 100 lbs. min.

30 percent max.

Trapezoid Tear ASTM D4533 55 lbs. min.

Permittivity ASTM D4491 0.2 sec-1

AOS (U.S. Std Sieve) ASTM D4751 20-100

2.1.3 Silt Fence Posts

Use steel posts for fence construction. Steel posts (standard "U" or "T" section) utilized for silt fence construction, shall have a minimum weight of 1.33 pounds/linear foot and a minimum length of 5 feet. Posts shall not be spaced more than 8 feet on center.

2.1.4 Mill Certificate or Affidavit

Provide a mill certificate or affidavit attesting that the fabric and factory seams meet chemical, physical, and manufacturing requirements specified above. Specify in the mill certificate or affidavit the actual Minimum Average Roll Values and identify the fabric supplied by roll identification numbers. Submit a mill certificate or affidavit signed by a legally authorized official from the company manufacturing the filter fabric.

2.1.5 Identification, Storage, and Handling

Filter fabric must be identified, stored, and handled in accordance with

ASTM D4873.

PART 3 EXECUTION

3.1 INSTALLATION OF SILT FENCES

Extend silt fences a minimum of 24 inches above the ground surface.

Provide filter fabric from a continuous roll cut to the length of the barrier to avoid the use of joints. When joints are unavoidable, splice together filter fabric at a support post, with a minimum 6 inch overlap, and securely sealed. Excavate trench approximately 4 inches wide and 8 inches deep on the upslope side of the location of the silt fence. The 4-by 8-inch trench shall be backfilled and the soil compacted over the

SECTION 01 57 23 Page 5 Revised by Amendment 0001 filter fabric. Remove silt fences upon approval by the Contracting Officer or his/her designated representative.

3.2 FIELD QUALITY CONTROL

Maintain the temporary and permanent vegetation, erosion and sediment control measures, and other protective measures in good and effective operating condition by performing routine inspections to determine condition and effectiveness, by restoration of destroyed vegetative cover, and by repair of erosion and sediment control measures and other protective measures. The following procedures shall be followed to maintain the protective measures.

3.2.1 Silt Fence Maintenance

Inspect the silt fences in accordance with paragraph, "INSPECTIONS". Any required repairs shall be made promptly. Pay close attention to the repair of damaged silt fence resulting from end runs and undercutting. Should the fabric on a silt fence decompose or become ineffective, and the barrier is still necessary, replace the fabric promptly. Remove sediment deposits when deposits reach one-third of the height of the barrier. Remove a silt fence when it is no longer required. The immediate area occupied by the fence and any sediment deposits shall be shaped to an acceptable grade.

The areas disturbed by this shaping shall be seeded in accordance with Section 32 92 19 SEEDING.

3.3 INSPECTIONS

3.3.1 General

The Contractor shall inspect disturbed areas of the construction site, areas used for storage of materials that are exposed to precipitation that have not been finally stabilized, stabilization practices, structural practices, other controls, and areas where vehicles exit the site at least once a day and after any significant storm that produces 0.5 inches or more rainfall at the site. Where sites have been finally stabilized, such inspection shall be conducted at least once every month.

3.3.2 Inspections Details

Inspect disturbed areas and areas used for material storage that are exposed to precipitation for evidence of, or the potential for, pollutants entering any body of water. Observe erosion and sediment control measures to ensure that they are operating correctly. Inspect discharge locations or points to ascertain whether erosion control measures are effective in preventing significant impacts to receiving waters. Inspect locations where vehicles exit the site for evidence of offsite sediment tracking.

3.3.3 Inspection Reports

For each inspection conducted, prepare a report summarizing the scope of the inspection, name(s) and qualifications of personnel making the inspection, the date(s) of the inspection, major observations, maintenance performed, and actions taken. Furnish the report to the Contracting Officer or his/her designated representative within 24 hours of the inspection as a part of the Contractor's daily CQC REPORT. A copy of the inspection report shall be maintained on the job site.

SECTION 01 57 23 Page 6 Revised by Amendment 0001

3.4 EXISTING SILT FENCE

The Contractor shall remove and dispose of all existing temporary silt fence filter fabric, wire fabric, and posts in an approved disposal area

-- End of Section --

SECTION 01 57 23 Page 7 Revised by Amendment 0001