W912EF17B0012-0003.pdf

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

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

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

30-105-04EXCEPTION TO SF 30

APPROVED BY OIRM 11-84

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

FAR (48 CFR) 53.243

The purpose of this amendment is to incorporate the revisions noted in the Summary of Changes.

The bid due date is being extended from August 30, 2017 to September 7, 2017 at 2:00 pm.

1. CONTRACT ID CODE PAGE OF PAGES

1 2

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

16C. DATE SIGNED

BY 25-Aug-2017

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 W912EF-17-B-0012

X 9B. DATED (SEE ITEM 11)

18-Jul-2017

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

25-Aug-2017

CODE

USAED, WALLA WALLA - CONTRACTING DIV.

VALERIE K. RELLER

201 N. THIRD AVENUE

WALLA WALLA WA 99362-1876

W912EF 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

W912EF-17-B-0012

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

1. Revised the following Specifications:

a. SECTION 03 01 32.00 28, “CONCRETE REHABILITATION”

Revised the following paragraph:

2.1.1, “General”

See revised specification for details.

(End of Summary of Changes)

Dworshak Fish Hatchery Burrows Ponds Concrete Repair W912EF17B0012

SECTION TABLE OF CONTENTS

DIVISION 03 - CONCRETE

SECTION 03 01 32

CONCRETE REHABILITATION

PART 1 GENERAL

1.1 REFERENCES

1.2 SUBMITTALS

1.3 CONTRACTOR QUALIFICATIONS

1.4 REGULATORY REQUIREMENTS

1.5 DELIVERY, STORAGE, AND HANDLING

PART 2 PRODUCTS

2.1 MATERIALS

2.1.1 General

2.1.2 Water

2.2 EQUIPMENT

2.3 Expansion Joint Materials

2.3.1 Backing

2.3.2 Sealants

2.4 Polymer-Modified Cement

2.4.1 Manufacturer's Instructions

PART 3 EXECUTION

3.1 PROTECTION

3.1.1 Protection of Existing Features

3.1.2 Protection of Personnel

3.2 SURFACES TO BE COATED

3.3 PROJECT CONDITIONS

3.4 MIXING MATERIALS

3.5 SURFACE PREPARATION

3.5.1 General

3.5.2 Waste Water Disposal

3.6 SURFACE REPAIRS

3.6.1 Polymer-Modified Cement

3.7 CLEANING AND RESEALING JOINTS

3.7.1 Preparation of Joints

3.7.2 Installation of Sealant

3.7.2.1 Time of Application

3.7.2.2 Backing Material

3.7.2.3 Sealing Joints

3.8 INSPECTIONS

3.8.1 Final Inspection

-- End of Section Table of Contents --

SECTION 03 01 32.00 28 Page 1 Amendment 3

SECTION 03 01 32

CONCRETE REHABILITATION

PART 1 GENERAL

1.1 REFERENCES

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

ASTM INTERNATIONAL (ASTM)

ASTM C509 (2006; R 2015) Elastomeric Cellular Preformed Gasket and Sealing Material

ASTM C920 (2014a) Standard Specification for Elastomeric Joint Sealants

ASTM D1056 (2014) Standard Specification for Flexible Cellular Materials - Sponge or Expanded Rubber

ASTM D1667 (2005; R 2011) Flexible Cellular Materials

- Poly (Vinyl Chloride) Foam (Closed-Cell)

U.S. ARMY CORPS OF ENGINEERS (USACE)

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

1.2 SUBMITTALS

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

submittals having an "I" designation are for information only. A designation following the "G" or "I" 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-01 Preconstruction Submittals

Contractor Qualifications; G, GT

SD-03 Product Data

Expansion Joint Materials; G, GT

Polymer-Modified Cement; G, GT

SD-08 Manufacturer's Instructions

Polymer-Modified Cement; G, GT

SECTION 03 01 32.00 28 Page 2

1.3 CONTRACTOR QUALIFICATIONS

The Contractor performing the repair work shall have been involved in a minimum of three concrete repair projects similar in size and scope to this project within the last five years. Submit information, including name, dollar value, date, and point-of-contact for similar projects which demonstrates the required experience and/or training.

1.4 REGULATORY REQUIREMENTS

Perform all work in accordance with applicable Federal, State and local safety, health and environmental requirements, and EM 385-1-1 . The Contractor is responsible for obtaining all permits required by Federal, State and local agencies for the performance of the work.

1.5 DELIVERY, STORAGE, AND HANDLING

Inspect materials delivered to site for damage, unload and store with a minimum of handling. Deliver materials in manufacturer's original sealed containers, fully identified with brand, type, grade, class and all other qualifying information. Store materials at temperatures between 40 degrees F to 85 degrees F. Do not allow materials to freeze. Follow manufacturer's requirements if more restrictive.

PART 2 PRODUCTS

2.1 MATERIALS

2.1.1 General

Backing materials and sealants shall be approved for contact with potable water and underwater use. Manufacturer's labels and instructions shall be followed including environmental conditions at time of application.

2.1.2 Water

Water for cleaning, mixing and curing shall be fresh, clean, potable, and free of injurious amounts of oil, acid, salt, or alkali. Contractor shall provide all potable water required for their use. There is Government-furnished non-potable water available as specified in Section:

01 51 00.00 28 TEMPORARY UTILTIES.

2.2 EQUIPMENT

Assemble at the site of the work sufficient equipment that is dependable, appropriate and adequate to accomplish the work specified. Deliver the equipment a sufficient time before the start of repairs to permit thorough inspection, calibration of weighing and measuring devices, adjustment of parts, and the making of any repairs that may be required. Machines, tools, and equipment used in the performance of the work shall be maintained in satisfactory condition at all times. Maintain the equipment in good working condition. Provide dust suppression on equipment as needed.

2.3 Expansion Joint Materials

2.3.1 Backing

Backing shall be 25 to 33 percent oversize for closed cell material, unless otherwise indicated. Cellular rubber sponge backing shall be

SECTION 03 01 32.00 28 Page 3 Amendment 3 s0cwh1rw Highlight s0cwh1rw Line

ASTM D1056, Type 2, round. Polyvinyl chloride (PVC) backing shall be ASTM D1667, open-cell foam, round. Synthetic rubber backing shall be ASTM C509, preformed rods. Manufacturer's data shall be submitted for approval.

2.3.2 Sealants

Sealants shall be polysulfide and shall conform to ASTM C920, Class 25, Use T, Grade NS for vertical joints and Grade P for horizontal joints.

The sealant shall be installed according to the manufacturer's instruction. A primer for bonding the sealant to the specified surfaces shall be applied per the manufacturer's instructions. Manufacturer's data shall be submitted for approval.

2.4 Polymer-Modified Cement

Polymer-modified cement shall be suitable for the application to walls and floors with the surface condition and use intended. Polymer-modified cement shall be Raeco "Skimwall" or equal. Submittal shall include manufacturer's data showing product meets the stated requirements.

Polymer-modified cement shall meet the following requirements:

a. Air-entrained to provide protection from freeze-thaw

b. Minimum 4,000 psi compressive strength

c. Minimum 500 psi bond strength at full cure

2.4.1 Manufacturer's Instructions

Follow the manufacturer's recommendations specific to the resurfacing material to be installed. This includes, but is not limited to, all recommendations regarding environmental conditions such as temperature, humidity, and moisture content of surface to be coated. Instructions should include curing requirements, length of time after placement before epoxy paint system can be applied, and length of time after placement before ponds can be filled with water. Manufacturer's instructions and Material Safety Data Sheets (MSDS) shall be included in the submittal.

PART 3 EXECUTION

3.1 PROTECTION

3.1.1 Protection of Existing Features

Take all necessary precautions to insure against damage to existing structures, and repair or replace any damage to such items as approved by the Contracting Officer at no additional cost to the Government.

3.1.2 Protection of Personnel

Perform all work in accordance with EM 385-1-1 . To protect personnel from overexposure to toxic materials, conform to the applicable manufacturer's Material Safety Data Sheets (MSDS) or local regulations. Ensure that adequate measures are in place to protect workers, facility operation personnel and the public from injury due to the operations being performed.

3.2 SURFACES TO BE COATED

Apply polymer-modified cement coating on all concrete surfaces of the burrows pond floors and on concrete wall surfaces to a height of 44 inches

SECTION 03 01 32.00 28 Page 4 above the pond floor.

3.3 PROJECT CONDITIONS

Do not perform the work if temperatures are below 45 degrees or above 100 degrees Fahrenheit. Do not apply new materials if precipitation is expected within a twenty-four hour period. Follow manufacturer's requirements if more restrictive.

3.4 MIXING MATERIALS

Make batches small enough to ensure placement before binder sets. Mix materials in accordance with manufacturer's recommendations.

3.5 SURFACE PREPARATION

3.5.1 General

The burrows ponds to be rehabilitated will be drained and pressure washed by the Government prior to on-site work by the Contractor. Contractor will be responsible for any additional surface preparation required prior to resurfacing with the polymer-modified cement. Perform final cleaning immediately prior to placement of the repair material. The surface shall be dry with no standing water on the surface upon which concrete is placed.

Protect all work from contamination during all phases of cleanup and preparation prior to repair.

3.5.2 Waste Water Disposal

Dispose of waste water employed in cleaning of concrete surfaces and joints in a manner such that the waste water does not stain, discolor, or affect exposed surfaces of the structures, or damage the environment of the project area. The method of disposal shall meet all Federal, State, and local requirements.

3.6 SURFACE REPAIRS

3.6.1 Polymer-Modified Cement

A bonding agent should be used either prior to placing the polymer-modified cement material or incorporated as part of the material.

If appropriate, prime surfaces prepared to receive repair material using the manufacturer's recommended bonding agent and in accordance with the manufacturer's instructions. Trowel apply polymer-modified cement before the bonding agent dries as recommended by the manufacturer, to create a smooth surface for painting. Cure polymer-modified material as recommended by the manufacturer.

3.7 CLEANING AND RESEALING JOINTS

3.7.1 Preparation of Joints

Thoroughly clean the joints to remove all laitance, loose or deteriorated filler, and old sealant from the sides and upper edges of the joint space to be sealed. Clean joints to sufficient depth to remove all loose material and debris and to permit placement of the backing material and sealant as shown on the drawings. Concrete surfaces shall be dry at the time of sealant application.

SECTION 03 01 32.00 28 Page 5

3.7.2 Installation of Sealant

Store and apply the primer and sealant in accordance with the manufacturer's written safety instructions and precautions and using manufacturer recommended procedures.

3.7.2.1 Time of Application

Seal joints immediately following final cleaning of the joint sidewalls and following the placement of the bond breaker (as required by the manufacturer) and back-up material. Reclean open joints that cannot be sealed under the conditions specified. When rain interrupts sealing operations, allow joints to dry prior to installing the sealant.

3.7.2.2 Backing Material

Plug or seal off the lower portion of the joint opening using a backing material to prevent the entrance of the sealant below the specified depth. Take care to ensure that the backing material is placed at the specified depth and is not stretched or twisted during installation.

3.7.2.3 Sealing Joints

Perform a final cleaning with compressed air immediately preceding, but not more than 50 feet ahead of the sealing operations. The joint surfaces shall be dry at the time the sealant is installed. Apply primer evenly to the joint faces in accordance with the manufacturer's instructions before placement of the back-up material. Place backing material after the primer is applied. Fill the joints from the bottom up to the surface of the concrete. Depth of sealant shall be one-half the joint width or as recommended by the sealant manufacturer. Commence sealing of joints at the bottom of the wall. Remove excess or spilled sealant from the concrete surface by approved methods and discard. Install the sealant using a gun cartridge in such a manner as to prevent the formation of voids and entrapped air. Do not install sealant material using gravity methods or pouring pots. Check joints frequently to ensure that the newly installed sealant is cured to a tack-free condition within the time specified. Tool the sealant concave immediately after application.

3.8 INSPECTIONS

3.8.1 Final Inspection

Following completion of the work, inspect surfaces for damage, staining, and other distresses. Inspect for cracking, crazing, delamination, unsoundness, staining and other defects. Repair all surfaces exhibiting defects as directed at no cost to the Government.

-- End of Section --

SECTION 03 01 32.00 28 Page 6