09B0041Amend4.pdf

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

THIS AMENDMENT DOES NOT EXTEND THE 11 SEPTEMBER 2009 BID OPENING DATE AT 1:00 P.M.

a. REQUEST FOR INFORMATION: Requests For Information, Numbers 32 to 40, with responses shown in bold are annotated Amendment No. 0004 and attached hereto.

b. SPECIFICATIONS:

(1) Project Table of Contents: Please delete the Project Table of Contents in its entirety and replace with the revised Project Table of Contents, annotated Amendment No. 0004 attached hereto.

c. Please indicate receipt of this amendment on Standard Form 1442 (SOLICITATION, OFFER, AND AWARD) as Amendment No.

0004. Failure to acknowledge all amendments may be cause for rejection of the bid.

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

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offers

MODIFICATION OF CONTRACTS/ORDER

NO.

E. IMPORTANT: Contractor

15B. CONTRACTOR/OFFEROR

is not, copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer tended.

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 submitted; or (c) By separate letter or telegram which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDG- MENT 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.

is extended, B.

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

TRACT ORDER NO. IN ITEM 10A.

2. AMENDMENT/MODIFICATION NO.

6. ISSUED BY

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

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.

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) is required to sign this document and return

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

PAGE OF PAGES 1. CONTRACT ID CODE

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

7. ADMINISTERED BY (If other than Item 6)

15C. DATE SIGNED

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

16B. UNITED STATES OF AMERICA

BY

16C. DATE SIGNED

9A. AMENDMENT OF SOLICITATION NO.

9B. DATED (SEE ITEM 11)

10B. DATED (SEE ITEM 13)

CODE CODE

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.

is not ex-copies to the issuing office.

NSN 7540-01-152-8070

PREVIOUS EDITION UNUSABLE

STANDARD FORM 30 (REV. 10-83)

Prescribed by GSA

FAR (48 CFR) 53.243

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

USAPPC V2.00

10A.

30-105-02

U.S. Army Engineer District, Philadelphia POC: Emily Sheaffer Wanamaker Building, 100 Penn Square East Philadelphia, Pennsylvania 19107-3390

U.S. Army Engineer District, Philadelphia Contracting Division - Room 643 Wanamaker Building, 100 Penn Square East Philadelphia, Pennsylvania 19107-3390

CODE

W912BU E5CTCEMS

FACILITY CODE

0004 03 September 2009 W25PHS91920528

W912BU-09-B-0041

07 August 2009

Recovery-Right Abutment Seepage Remediation Exploratory Drilling & Grouting, FE Walter Dam & Reservoir, Carbon & Luzerne, E5CTCEMS

Typewritten Text

PA

This page was intentionally left blank for duplex printing.

PROJECT TABLE OF CONTENTS

DIVISION 01 - GENERAL REQUIREMENTS

01 11 00 SUMMARY OF WORK

01 22 00 MEASUREMENT AND PAYMENT

01 32 01 PROJECT SCHEDULE

01 32 33 CONSTRUCTION PHOTOGRAPHY

01 33 00 SUBMITTAL PROCEDURES

01 35 26 GOVERNMENTAL SAFETY REQUIREMENTS

01 42 00 SOURCES FOR REFERENCE PUBLICATIONS

01 45 01 CONTRACTOR QUALITY CONTROL

01 45 02 QUALITY CONTROL SYSTEM (QCS)

01 50 00 TEMPORARY CONSTRUCTION

01 57 20 ENVIRONMENTAL PROTECTION

01 58 00 PROJECT AND SAFETY SIGNS

01 62 35 RECYCLED / RECOVERED MATERIALS

01 74 19 CONSTRUCTION AND DEMOLITION WASTE MANAGEMENT

01 78 00 AS-BUILT DRAWINGS

DIVISION 27 - COMMUNICATIONS

27 00 00 AUTOMATED DATA AQUISITION SYSTEM

DIVISION 31 - EARTHWORK

31 32 23 FOUNDATION DRILLING AND GROUTING

DIVISION 32 - EXTERIOR IMPROVEMENTS

32 12 00 HOT MIX ASPHALT (HMA) WEARING COURSE

DIVISION 33 - UTILITIES

33 24 13 INSTALLATION OF PIEZOMETERS

-- End of Project Table of Contents --

Amendment No. 0004

IFB W912BU-09-B-0041

IFB W912-BU-09-B-0041

FOR INFORMATION ONLY

Requests For Information With Responses

(Refer to Amendment No. 0003 for RFIs 1 through 31)

IFB W912BU-09-B-0041

32. Is the annulus between the PVC casing and embankment to be grouted to the surface, or just in the 2 feet seated into rock? Bid in accordance with Section 31 32 23, paragraph 3.4.1.

33. Is there any potential fill areas on-site that the contractor may place drill cuttings?

Drill cuttings may be stockpiled in staging area until final disposal off-site per Drawing G-2, Note 4 and Section 01 50 00 of the IFB.

34. Once the lake is drawn down, will there be flow through the outlet tunnel? Yes.

35. What is the thickness of the existing asphalt pavement and stone base? Refer to Existing conditions plan on Drawing C-1 of the IFB.

36. What portion will be down-stage drilled and grouted and what portion will be ascending grouted? All grouting is down-stage grouting per Section 31 32 23.

37.Please verify the intent of Section 31 32 23, para 1.7.2.4 and 1.7.2.5 which indicates that holes may be drilled on 40 foot centers in each line, but a separation distance of no less than 120 shall be maintained between open holes in one line and drilling, water pressure testing and grouting operations. The referenced paragraphs require grout holes to be drilled on 40 foot centers in each line, however a separation distance of no less than 120 shall be maintained between open holes in one line and drilling, water pressure testing and grouting operations in the opposite line of the grout curtain. Paragraphs 1.7.1.d and 1.7.1.e require 120’ spacing within the same line.

Bid according to the IFB.

38. The bid form includes a significant quantity of sand which indicates a significant amount of low mobility grout is anticipated. Low mobility grout typically involves considerable more cost and effort per unit than high mobility grout. Is a significant quantity of low mobility grout anticipated? If so, a separate pay item for placing low mobility grout is requested. A significant quantity of low mobility grout is not anticipated. The sand may be used as filler in grout used to backfill casing in overburden. Note that grout placement is measured for payment by the hour per the bid schedule and Section 01 22 00.

39. Is there a minimum wait time after grouting a stage prior to beginning the drilling of the next stage within a particular hole? Refer to Section 31 32 23, para 3.5.2.1.b.

40. Section 31 32 23, paragraph 3.3.31 requires 12 hour hydration of bentonite slurry prior to use. The slurry is prone to freezing during the 12 hour hydration. High-shear

IFB W912-BU-09-B-0041

colloidal mixers can produce a near continuous supply of fully hydrated bentonite slurry.

Can the 12 hour hydrate specification be deleted if high shear colloidal mixer is used?

No. Refer to Section 31 32 23, para 3.5.12 regarding climatic factors. Bid in accordance with the IFB.