09B0041Amend6.pdf

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

THIS AMENDMENT EXTENDS THE BID OPENING DATE TO: 16 SEPTEMBER 2009 AT 11:00 A.M.

(CONTINUED)

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

0006 09 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.

Amendment No. 0006

IFB W912BU-09-B-0041

14. CONTINUED:

a. SPECIFICATIONS:

(1) Bidding Schedule: Please delete the Bidding Schedule in its entirety and substitute the revised Bidding Schedule, annotated Amendment No. 0006 attached hereto.

(2) Section 01 11 00 – SUMMARY OF WORK: Please delete Section 01 11 00 in its entirety and substitute the revise Section 01 11 00, annotated Amendment No. 0006 attached hereto.

(3) Section 01 22 00 - MEASUREMENT AND PAYMENT: Please delete Section 01 22 00 in its entirety and substitute the revised Section 01 22 00, annotated Amendment No. 0006 attached hereto.

b. Please indicate receipt of this amendment on Standard Form 1442 (SOLICITATION, OFFER, AND AWARD) as Amendment No. 0006.

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

00010-3

BIDDING SCHEDULE

Item No.

Description

ESTIMATED

QUANTITY

UNIT

UNIT

PRICE

ESTIMATED

AMOUNT

BASE BID

1 Recovery - Mobilization and

Demobilization 1

Job

LS

2 Recovery - Automated Grouting Control & Data Collection (Setup & Calibration) 1

3 Recovery - Automated Grouting Control & Data Collection (Operation) 180

Days

4 Recovery - Drilling Overburden 17,180 LF $ $ 5 Recovery - Drilling Rock 5,940 LF $ $ 6 Recovery - Pressure Washing 30 HR $ $ 7 Recovery - Pressure Testing 65 HR $ $ 8 Recovery - Type III Cement in

Grout 740,000

LB

9 Recovery - Pozzolans in Grout 67,000 LB $ $ 10 Recovery - Sand in Grout 344,000 LB $ $ 11 Recovery - Superplasticizer in

Grout 1,250

GAL

12 Recovery - Bentonite in Grout 44,500 LB $ $ 13 Recovery - Viscosity Modifier In

Grout 850

14 Recovery - Downstage Hole Setups 400 EA $ $ 15 Recovery - Initial Verification

Holes 280

LF

16 Recovery - Final Verification Holes 240

17 Recovery - Placing Grout 400 HR $ $ 18 Recovery - Borehole Deviation &

Verification Surveys 25

EA

19 Recovery - Borehole Camera Log 13 EA $ $ 20 Recovery - Standby Time 50 HR $ $ 21 Recovery - Piezometer Installation 505 LF $ $ 22 Recovery - Upgrade Automated Data

Acquisition System 1

23 Recovery – Pavement Resurfacing 1 Job LS $

TOTAL BASE BID AMOUNT $

OPTION 1

24 Recovery - Automated Grouting

Control & Data Collection (Operation)

17 Days $

25 Recovery - Drilling Rock 1,160 LF $ $ 26 Recovery - Pressure Washing 12 HR $ $ 27 Recovery - Pressure Testing 20 HR $ $ 28 Recovery - Type III Cement in

00010-3

Grout 186,000 LB $ $ 29 Recovery - Pozzolans in Grout 22,320 LB $ $ 30 Recovery - Superplasticizer in

Grout 400

31 Recovery - Bentonite in Grout 14,750 LB $ $ 32 Recovery - Viscosity Modifier In

Grout 300

33 Recovery - Placing Grout 120 HR $ $ 34 Recovery - Downstage Hole Setups 116 EA $ $

TOTAL OPTION 1 AMOUNT $

OPTION 2

35 Recovery - Automated Grouting

Control & Data Collection (Operation)

10 Days $ $

36 Recovery - Drilling Overburden 3,650 LF $ $ 37 Recovery - Drilling Rock 1,000 LF $ $ 38 Recovery - Pressure Washing 5 HR $ $ 39 Recovery - Pressure Testing 10 HR $ $ 40 Recovery - Type III Cement in

Grout 52,000

41 Recovery - Pozzolans in Grout 2,000 LB $ $ 42 Recovery - Sand in Grout 67,000 LB $ $ 43 Recovery - Superplasticizer in

Grout 40

44 Recovery - Bentonite in Grout 1,350 LB $ $ 43 Recovery - Viscosity Modifier In

Grout 25

46 Recovery - Placing Grout 75 HR $ $ 47 Recovery - Downstage Hole Setups 75 EA $ $

TOTAL OPTION 2 AMOUNT $

OPTION 3

48 Recovery - Automated Grouting

Control & Data Collection (Operation)

11 Days $ $

49 Recovery - Drilling Overburden 4,800

50 Recovery - Drilling Rock 1,350

51 Recovery - Pressure Washing 6 HR $ $ 52 Recovery - Pressure Testing 14 HR $ $ 53 Recovery - Type III Cement in

Grout

63,000 LB $ $

54 Recovery - Pozzolans in Grout 2,000 LB $ $ 55 Recovery - Sand in Grout 88,000 LB $ $ 56 Recovery - Superplasticizer in

00010-3

57 Recovery - Bentonite in Grout 1,350 LB $ $ 58 Recovery - Viscosity Modifier In

59 Recovery - Placing Grout 75 HR $ $ 60 Recovery - Downstage Hole Setups 75 EA $ $

TOTAL OPTION 3 AMOUNT $

OPTION 4

61 Recovery - Automated Grouting

Control & Data Collection (Operation)

10 Days $ $

62 Recovery - Drilling Overburden 3,650 LF $ $ 63 Recovery - Drilling Rock 1,000 LF $ $ 64 Recovery - Pressure Washing 5 HR $ $ 65 Recovery - Pressure Testing 10 HR $ $ 66 Recovery - Type III Cement in

Grout 52,000

67 Recovery - Pozzolans in Grout 2,000 LB $ $ 68 Recovery - Sand in Grout 67,000 LB $ $ 69 Recovery - Superplasticizer in

70 Recovery - Bentonite in Grout 1,350 LB $ $ 71 Recovery - Viscosity Modifier In

72 Recovery - Placing Grout 75 HR $ $ 73 Recovery - Downstage Hole Setups 75 EA $ $

TOTAL OPTION 4 AMOUNT $

OPTION 5

74 Recovery - Automated Grouting

Control & Data Collection (Operation)

11 Days $ $

75 Recovery - Drilling Overburden 4,800

76 Recovery - Drilling Rock 1,350

77 Recovery - Pressure Washing 6 HR $ $ 78 Recovery - Pressure Testing 14 HR $ $ 79 Recovery - Type III Cement in

Grout

63,000 LB $ $

80 Recovery - Pozzolans in Grout 2,000 LB $ $ 81 Recovery - Sand in Grout 88,000 LB $ $ 82 Recovery - Superplasticizer in

83 Recovery - Bentonite in Grout 1,350 LB $ $ 84 Recovery - Viscosity Modifier In

85 Recovery - Placing Grout 75 HR $ $

00010-3

86 Recovery - Downstage Hole Setups 75 EA $ $

TOTAL OPTION 5 AMOUNT $

TOTAL BASE BID AND OPTIONS 1

THROUGH 5 AMOUNT

Note: Bidders must bid on all items.

SECTION 01 11 00

SUMMARY OF WORK

PART 1 GENERAL

1.1 SCOPE OF SECTION

This section presents a general description of the work to be accomplished under this contract at Francis E Walter Dam.

1.2 DESCRIPTION OF WORK

The major items of work to be performed under this contract include, but are not limited to, the following:

a. Drilling and downstage pressure grouting of drill holes as indicated and in accordance with Section 31 32 23, FOUNDATION DRILLING AND GROUTING in order to bring seepage to within an acceptable level.

b. Installation of Piezometers and related controls as indicated and specified.

c. All work incidental to the above items including, but not limited to: water supply and distribution required for execution of work, snow and ice removal in active Contractor work areas, clearing and excavation incidental to piezometer installation, resurfacing of pavement related to drilling operations, restoration of turfed areas related to piezometer installation and waste/debris disposal.

d. Traffic control, and snow and ice removal outside of active Contractor work areas will be by the Government.

e. Option 1 includes all work to extend drilling and grouting operations an additional 10 feet into rock beyond that required under the Base Bid. Option 1 work shall be in accordance with Section 31 32 23, FOUNDATION DRILLING AND GROUTING.

f. Option 2 and Option 4 include all work associatied with drilling and grouting an additional 20 holes each in the vicintiy of the Base Bid work at locations to be determined by the Contracting Officer. Option 2 and Option 4 work shall be in accordance with Section 31 32 23, FOUNDATION DRILLING AND GROUTING

g. Option 3 and Option 5 include all work associatied with drilling and grouting an additional 25 holes each in the vicintiy of the Base Bid work at locations to be determined by the Contracting Officer. Option 3 and Option 5 work shall be in accordance with Section 31 32 23, FOUNDATION DRILLING AND GROUTING

1.3 EXISTING CONDITIONS

1.3.1 Purpose of Dam

Frances E. Walter Dam has been in operation as a flood damage control dam

Section 01 11 00 Page 1 since its completion in late 1960. In addition to flood control, the dam is also operated for recreation and drought emergency water supply. At various times during its operation, the dam impounds water levels from approximately 70 to 100 feet above the normal pool elevations. The dam is categorized as a "High Hazard Potential Dam" by the USACE.

1.3.2 Construction

Construction of the outlet works was initiated in the spring of 1956 and was completed in fall of 1957 with the embankment constructed in four construction seasons with the overall completion of the structure in December 1960. The dam is a rolled earthfill embankment structure with a maximum height of 234 feet above the original stream bed and a length of approximately 3000 feet. The outlet works include a three slide gate intake structure founded on rock and a 16 foot diameter concrete lined tunnel in the right abutment. The spillway weir is an uncontrolled gravity ogee structure situated in bedrock high on the right abutment. Two low areas on the reservoir rim are closed to top of dam elevation 1474 N.G.V.D. by a pair of saddle dikes located approximately one mile north of the dam on the right side of the reservoir.

Dam and Spillway.

Length of dam, 3,000 feet Maximum height of dam above streambed 234 feet Top of dam, elevation 1474 MSL Spillway crest, elevation 1450 MSL

Reservoir.

Normal Pool, elevation 1300 MSL Recreational Pool, elevation 1370 MSL Surface Area 90 acres

1.3.3 Purpose of Work

When high reservoir levels have been maintained for extended periods of time, seepage along the downstream toe of the right abutment has been observed. This seepage and its effects upon the integrity of the embankment and its foundation during these high pool periods has been a concern since it was first observed in 1966. The purpose of this project is to drill exploratory borings into the foundation rock and determine the permeability of the subsurface material and perform a remediation program to repair possible damage that may be associated with construction defects or natural permeability deficiencies by grouting the foundation rock to reduce permeability and seepage through the foundation rock.

The performance requirement is for the installed Grout Curtain to achieve a reduction in the lugeon value based on pre and post grouting water pressure testing as measured between verification holes between a double line grout curtain. The proposed approximate 600 linear feet long double row grout curtain will be installed utilizing a split - space technique with primary grout holes spaced at 40 feet apart.

Embankment and Overburden Soils The embankment is a rolled earthfill with a central impervious core, downstream zone of random fill with riprap slope protection, and a semi-pervious upstream zone. A rockfill zone with a minimum thickness of 10 feet was formed at the upstream slope primarily by oversize cobbles and

Section 01 11 00 Page 2 boulders taken from the earthfill. The embankment has uniform 1 vertical to

2.5 horizontal side slopes. A l-foot thick inclined drain and 5-foot thick horizontal blanket of pervious material drain the downstream portion of the dam.

The majority of materials used in the embankment were excavated from nearby borrow areas. Impervious fill ranging from gravelly sandy clay to clayey sandy gravel was obtained from three borrow areas in the highlands north and south of the dam site. Borrow for the semi-pervious zone ranged from pervious sandy gravel and cobbles to semi-pervious silty sandy gravel and cobbles and was obtained from sources upstream and downstream of the dam.

Riprap and rockfill were provided by raking the oversize stone from the embankment materials during placement, supplemented by stockpiled rock excavation and boulders culled from embankment materials in the borrow areas. Additional riprap was obtained from a small on-site sandstone and quartzite quarry operation along the left bank of Cedar Run.

The foundation for all the fill areas was stripped to an average depth of 2 feet to exclude unsuitable foundation materials.

Clay Core. An impervious cutoff trench through the glacial drift to bedrock with side slopes of 1 vertical to 1 horizontal and bottom width of 20 feet was provided under the entire embankment. Foundation rock along the embankment centerline was grouted with a single line of holes in the cutoff trench extending to the depth of 25 feet.

1.4 Geology

1.4.1 Regional Geology

The general geology of the Lehigh River Basin in which F.E. Walter Dam is located lies entirely within the Pocono Plateau which is a small, southeast trending lobe of the Appalachian Plateau physiographic province. The Pocono Plateau is well dissected, giving a mountainous appearance accentuated by crooked, narrow steep-walled valleys containing the Lehigh River and its upper tributaries.

1.4.2 Site Geology

The overburden at the embankment site consists predominantly of numerous small to large boulders in a matrix of silty sandy gravel. Bedrock consists of hard siliceous gray sandstone, siltstone and conglomerate of the Mississippian Pocono Formation, with thin discontinuous beds of gray to black shale.

Beds in the formation are thick to massive and have a rectangularly arranged joint pattern which dip northwest 10 to 20 degrees and strike NE-SW. There is a well developed system of jointing perpendicular and parallel to the bedding with the frequencies of the vertical joints generally ranging from approximately 3 to 12 feet. Weathering along joints is mostly confined to discoloration except along shale contacts where decomposition is common for short distances beyond the joint surfaces.

Water levels in the area of the dam are influenced by both the reservoir and groundwater levels in adjacent abutments. Ground water levels in the right abutment foundation immediately downstream of the existing core trench and grout curtain show rapid and equal responses to changes in pool elevation. The water levels recorded in the existing piezometers indicate phreatic surfaces ranging from approximate elevation 1270 to 1370 feet.

Section 01 11 00 Page 3

PART 2 PRODUCTS (Not Applicable)

PART 3 EXECUTION (Not Applicable)

-- End of Section --

Section 01 11 00 Page 4

SECTION 01 22 00

MEASUREMENT AND PAYMENT

PART 1 GENERAL

1.1 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 Data

Detailed Breakdown of Bid; G, DO

For the purpose of making monthly estimates partial payments to the Contractor, the Contractor shall submit for approval, within fifteen (15) calendar days after the effective date of this Contract, a detailed breakdown of the estimated value of the work TO bedone under each of the items included in this Contract. In the case of a lump sum item, the detailed breakdown shall give a schedule of the costs of the various parts of the work, including quantities. The total of these costs shall equal the total amount of the Contract. The breakdown shall be divided so that it provides adequate information and in a form suitable for tracking progress payments and in such a form that payments due various Subcontractors may be checked by the Government.

These detailed breakdowns shall be in such form and in such detail and supported as to correctness by such data as the Government may require. No payment to the Contractor shall be made until the detailed breakdown and the progress schedule, as required, have been submitted by the Contractor and approved by the government.

1.2 LUMP SUM PAYMENT ITEMS

Payment items for the work of this contract for which contract lump sum payments will be made are listed in the BIDDING SCHEDULE and described below. All costs for items of work, which are not specifically mentioned to be included in a particular lump sum or unit price payment item, shall be included in the listed lump sum item most closely associated with the work involved. The lump sum price and payment made for each item listed shall constitute full compensation for furnishing all plant, labor, materials, and equipment, and performing any associated Contractor quality control, environmental protection, meeting safety requirements, tests and reports, and for performing all work required for which separate payment is not otherwise provided.

Section 01 22 00 Page 1

1.2.1 Mobilization and Demobilization (Base Bid)

1.2.1.1 Payment

Payment will be made for assembling all plant and equipment at the site preparatory to initiating the work and for removing it when the drilling and grouting program has been completed, as specified in the applicable portions of Section 31 32 23 FOUNDATION DRILLING AND GROUTING. Sixty (60) percent of the contract lump-sum price for mobilization and demobilization will be paid following completion of moving onto the site, including complete assembly, in working order, of all equipment necessary to perform the required drilling and grouting operations. The remaining forty (40) percent of the contract lump-sum price will be paid when all equipment has been removed from the site and th e work area restored to conditions approved by COR. All costs associated with this item shall be included in the lump sum contract price for "MOBILIZATION AND DEMOBILIZATION" of the BIDDING SCHEDULE. All costs for all incidental work required in performance of the work under this contract not covered elsewhere shall be included in this item.

1.2.1.2 Unit of Measure

Unit of measure: lump sum.

1.2.2 AUTOMATED GROUTING CONTROL AND DATA COLLECTION SYSTEM (SETUP &

CALIBRATION) (Base Bid)

1.2.2.1 Payment

Payment will be made for furnishing, installing and operating all equipment, materials and computer hardware and software necessary for properly installing and operating a computer-assisted grout placement recording display and control system, as specified in the applicable portions of SECTION 31 32 23, FOUNDATION DRILLING AND GROUTING. This shall include providing and setup of data collection ports, connections, cables, printing, plotting, data recording and data transfer devices for purposes of tracking of quantities and instant analyses of water pressure tests and grout placement. This shall also include testing and calibrating the system prior to production grouting to verify the devices and system are functioning properly and the system is accurately receiving and recording the data. Payment shall include any royalties or subcontract costs associated with this item. The cost to provide qualified personnel to operate the system shall be included in Bid Item "AUTOMATED GROUTING

CONTROL AND DATA COLLECTION SYSTEM (SETUP AND CALIBRATION) ".

1.2.2.2 Unit of Measure

Unit of measure: lump sum.

1.3.3 UPGRADES TO AUTOMATED DATA AQUISITION SYSTEM (ADAS) (Base Bid)

1.2.3 Payment

Payment will be made for designing, furnishing, and installing all equipment, materials and computer software and testing of upgrades to the ADAS as specified in the applicable portions of SECTION 27 00 00.

Section 01 22 00 Page 2

1.3.3.2 Unit of Measure

Unit of measure: lump sum.

1.3.3 PAVEMENT RESURFACING (Base Bid)

1.2.4 Payment

Payment will be made for pavement resurfacing as specified in the applicable portions of SECTION 32 12 00.

1.3.3.2 Unit of Measure

Unit of measure: lump sum.

1.3 UNIT PRICE PAYMENT ITEMS

Payment items for the work of this contract on which the contract unit price payments will be made are listed in the BIDDING SCHEDULE and described below. The unit price and payment made for each item listed shall constitute full compensation for furnishing all plant, labor, materials, and equipment, and performing any associated Contractor quality control, environmental protection, meeting safety requirements, tests and reports, and for performing all work required for each of the unit price items.

1.3.1 AUTOMATED GROUTING CONTROL AND DATA COLLECTION SYSTEM (OPERATION)

(Base Bid and Option 1, Option 2, Option 3, Option 4 and Option 5)

1.3.1.1 Payment

Payment will be made for providing qualified personnel to operate the computer-assisted grout placement recording display and control system, as specified in the applicable portions of SECTION 31 32 23, FOUNDATION DRILLING AND GROUTING. All other costs for initial setup and calibration, equipment and labor shall be included in the BID ITEM "AUTOMATED GROUTING

CONTROL AND DATA COLLECTION SYSTEM (OPERATION).

1.3.1.2 Measurement

The operation of the automated grouting control and data collection system will be paid for on a daily basis. For the purpose of this bid item, a day is equivalent to an 8 hour shift.

1.3.1.3 Unit of Measure

Unit of measure: days(D) .

1.3.2 DRILLING OVERBURDEN (Base Bid, Option 2, Option 3, Option 4 and Option 5)

1.3.2.1 Payment

Payment will be made for costs associated with drilling and re-drilling primary, secondary, tertiary holes through overburden, for drilling through overburden for initial and final verification purposes, and for furnishing all labor and supplies incidental to the work as specified in the applicable portions of Section 31 32 23 FOUNDATION DRILLING AND GROUTING.

Material, equipment and labor costs associated with installation and

Section 01 22 00 Page 3 grouting of temporary steel casing pipe through overburden into the top of rock shall be included in this item. Any casing or standpipe left in the ground shall be cut down 1 foot below grade and covered following the completion of grouting of the hole.

1.3.2.2 Measurement

Drilling of holes in overburden will be measured for payment on the basis of the linear feet drilled for verification purposes, and primary, secondary and tertiary grout holes drilled in overburden.

1.3.2.3 Unit of Measure

Unit of measure: linear feet (LF).

1.3.3 DRILLING ROCK (Base Bid and Option 1,Option 2, Option 3, Option 4 and Option 5)

1.3.3.1 Payment

Payment will be made for costs associated with drilling and re-drilling primary, secondary and tertiary holes in rock; water flush; care and disposal of waste water and cuttings; clean-up of the site; furnishing, handling, transporting and storing of materials; and furnishing all labor and supplies incidental to the work as specified in the applicable portions of Section 31 32 23, FOUNDATION DRILLING AND GROUTING.

1.3.3.2 Measurement

Drilling of grout holes will be measured for payment on the basis of the linear feet drilled for the primary, secondary and tertiary grout holes drilled in rock.

1.3.3.3 Unit of Measure

Unit of measure: linear feet (LF).

1.3.4 PRESSURE WASHING (Base Bid and Option 1, Option 2, Option 3, Option 4 and Option 5)

1.3.4.1 Payment

Payment will be made for pressure washing of grout holes and verification holes as well as making and breaking connections incidental to the work as specified in the applicable portions of Section 31 32 23, FOUNDATION DRILLING AND GROUTING. Payment will be based upon the total amount of time required by the Government for pressure washing, determined by reducing the accumulative total number of minutes of operation for all the grout holes to the next whole hour. No payment will be made for time lost due to fault or negligence of the contractor, or due to defective equipment furnished by the Contractor.

1.3.4.2 Measurement

Pressure washing will be measured for payment on the basis of the actual time, during which fluid is injected for pressurewashing the grout holes and verification holes. Pressure washing will be measured from the time pumping is begun on a hole or section of a hole until the time pumping is completed on the hole or section of the hole as determined by the

Section 01 22 00 Page 4

Contracting Officer. Time will be measured cumulatively to the next whole minute of operation.

1.3.4.3 Unit of Measure

Unit of measure: hours. (HRS)

1.3.5 PRESSURE TESTING (Base Bid and Option 1, Option 2, Option 3, Option 4 and Option 5)

1.3.5.1 Payment

Payment will be made for pressure testing of primary, secondary and tertiary grout holes and verification holes, which includes the cost of making and breaking connections incidental to the work, as specified in the applicable portions of Section 31 32 23 FOUNDATION DRILLING AND GROUTING.

Payment will be based upon the total amount of time required per pump for pressure testing, determined by reducing the accumulative total number of minutes of operation. No payment will be made for time lost due to fault or negligence of the Contractor, or due to defective equipment furnished by the Contractor.

1.3.5.2 Measurement

Pressure testing will be measured for payment on the basis of the actual time, during which fluid is injected, for the primary, secondary and tertiary holes and verification holes as shown or as directed. Pressure testing will be measured from the time pumping is begun on a hole or section of a hole until the time pumping is completed on the hole or section of the hole as determined by the Contracting Officer. Time will be measured cumulatively to the next whole minute of operation.

1.3.5.3 Unit of Measure

Unit of measure: hours. (HRS).

1.3.6 TYPE III CEMENT IN GROUT (Base Bid and Option 1, Option 2, Option 3, Option 4 and Option 5)

1.3.6.1 Payment

Payment will be made for material costs associated with Type III Portland cement in grout used in grouting of holes, as specified in the applicable portions of Section 31 32 23, FOUNDATION DRILLING AND GROUTING. Payment will be made at the applicable contract unit prices for materials contained in grout which are wasted, where the wasting is not due to negligence on the part of the Contractor. Separate payment will be made for all materials used in grout as provided in unit price pay item(s) "Type III Cement in Grout", "Pozzolans (Fly Ash) in Grout", "Sand in Grout", "Superplasticizer in Grout", "Bentonite in Grout", and "Viscosity Modifier in Grout". Other admixtures, which may be used in the grout, i.e. water reducer and accelerator or retarder, will not have a separate payment, but are considered as incidental.

1.3.6.2 Measurement

Portland cement in grout will be measured for payment on the basis of the pounds of bulk weight of cement used in the grout satisfactorily placed in the primary, secondary and tertiary holes, and in verification holes, or

Section 01 22 00 Page 5 wasted when such wasting is not due to the Contractor's negligence.

1.3.6.3 Unit of Measure

Unit of measure: pounds(LBS).

1.4.5 POZZOLANS (FLYASH) AND/OR SILICA FUME IN GROUT (Base Bid and Option 1, Option 2, Option 3, Option 4 and Option 5)

1.3.6.4 Payment

Payment will be made for material costs associated with flyash and/or silica fume in grout, as specified in the applicable portions of Section, 31 32 23, FOUNDATION DRILLING AND GROUTING.

1.3.6.5 Measurement

Flyash and silica fume in grout will be measured for payment on the basis of the total number of pounds of flyash and/or silica fume in the grout satisfactorily placed in grout holes.

1.3.6.6 Unit of Measure

Unit of measure: pounds(LBS).

1.3.7 SAND IN GROUT (Base Bid and Option 1, Option 2, Option 3, Option 4 and Option 5)

1.3.7.1 Payment

Payment will be made for material costs associated with sand in grout, as specified in the applicable portions of Section 31 32 23 FOUNDATION

DRILLING AND GROUTING.

1.3.7.2 Measurement

Sand in grout will be measured for payment on the basis of the number of pounds of sand, dry rodded measurement, used in the grout satisfactorily placed in the primary, secondary and tertiary holes.

1.3.7.3 Unit of Measure

Unit of measure: pounds(LBS).

1.3.8 SUPERPLASTICIZER IN GROUT (Base Bid and Option 1, Option 2, Option 3, Option 4 and Option 5)

1.3.8.1 Payment

Payment will be made for material costs associated with superplasticizer in grout, as specified in the applicable portions of Section 31 32 23

FOUNDATION DRILLING AND GROUTING.

1.3.8.2 Measurement

Sand in grout will be measured for payment on the basis of the number of gallons of superplasticizer used in the grout satisfactorily placed in grout holes.

Section 01 22 00 Page 6

1.3.8.3 Unit of Measure

Unit of measure: gallons(GAL).

1.3.9 BENTONITE IN GROUT (Base Bid and Option 1, Option 2, Option 3, Option 4 and Option 5)

1.3.9.1 Payment

Payment will be made for material costs associated with bentonite in grout, as specified in the applicable portions of Section 31 32 23 FOUNDATION

DRILLING AND GROUTING.

1.3.9.2 Measurement

Bentonite in grout will be measured for payment on the basis of the number of pounds of bentonite powder actually used in the grout satisfactorily placed in primary, secondary and teritary grout holes and verification holes.

1.3.9.3 Unit of Measure

Unit of measure: pounds(LBS).

1.3.10 VISCOSITY MODIFIER IN GROUT (Base Bid and Option 1, Option 2, Option 3, Option 4 and Option 5)

1.3.10.1 Payment

Payment will be made for cost of viscosity modifier in grout, as specified in the applicable portions of Section 31 32 23 FOUNDATION DRILLING AND

GROUTING.

1.3.10.2 Measurement

Viscosity modifier will be measured for payment on the basis of the number of pounds of modifier actually used in the grout satisfactorily placed in primary, secondary and teritary grout holes.

1.3.10.3 Unit of Measure

Unit of measure: pounds(LBS).

1.3.11 DOWNSTAGE GROUTING SETUPS (Base Bid and Option 1, Option 2, Option 3, Option 4 and Option 5)

1.3.11.1 Payment

Payment will be made for each setup necessary to satisfactorily complete each required stage of the grouting process for each hole in accordance with applicable portions of Section 31 32 23, FOUNDATION DRILING AND GROUTING. Work inclueds; time, equipment and personnel required to set up drill rig, necessary grout equipment/hose connections and disconnections per grout stage and cleaning out previously grouted stages.

1.3.11.2 Measurement

Downstage grouting setups will be measured for payment on the basis of each setup required during the downstage grouting process.

Section 01 22 00 Page 7

1.3.11.3 Unit of Measure

Unit of measure: each (EA).

1.3.12 INITIAL VERIFICATION HOLES

1.3.12.1 Payment

Payment will be made for costs associated for rock coring using HQ diamond rotary drilling of rock for initial verification purposes; care and disposal of waste water; clean-up of the site; furnishing and storing of core boxes for rock core samples; furnishing all labor and supplies incidental to the work, as specified in the applicable portions of Section 31 32 23, FOUNDATION DRILING AND GROUTING. Payment for drilling through overburden and grouting for initial verification purposes will be made according to Bid Items "Drilling Overburden" and "Grouting".

1.3.12.2 Measurement

Driling of initial verification holes will be measured for payment on the basis of the linear feet of holes actually drilled in rock.

1.3.12.3 Unit of Measure

Unit of measure: linear foot (LF).

1.3.13 FINAL VERIFICATION HOLES

1.3.13.1 Payment

Payment will be made for costs associated for rock coring using HQ diamond rotary drilling of rock; care and disposal of waste water; clean-up of the site; furnishing and storing of core boxes for rock core samples;

furnishing all labor and supplies incidental to the work, as specified in the applicable portions of Section 31 32 23, FOUNDATION DRILING AND GROUTING. Payment for drilling through overburden and grouting for final verification purposes will be made according to Bid Items "Drilling Overburden" and "Grouting". Payment will be made at the applicable contract unit prices for materials contained in grout which are wasted, where the wasting is not due to negligence on the part of the Contractor.

1.3.13.2 Measurement

Driling of final verification holes will be measured for payment on the basis of the linear feet of holes actually drilled in rock.

1.3.13.3 Unit of Measure

Unit of measure: linear foot (LF).

1.3.14 PLACING GROUT (Base Bid and Option 1, Option 2, Option 3, Option 4 and Option 5)

1.3.14.1 Payment

Payment will be made for labor and equipment costs associated with satisfactorily placing grout mixture in the primary, secondary and tertiary grout holes and verification holes, which includes full compensation for

Section 01 22 00 Page 8 proportioning the mix as directed, and mixing and injecting the grout, as specified in the applicable portions of Section 31 32 23, FOUNDATION DRILLING AND GROUTING. Payment will be based upon the total amount of time required per pump for placing grout, determined by reducing the accumulative total number of minutes of operation. No payment will be made for grout, or the material constituents thereof, wasted due to improper anchorage of grout pipe or connections, or which is wasted due to negligence on the part of the Contractor, nor for grout which is rejected by the Contracting Officer because of improper mixing.

1.3.14.2 Measurement

The operation of placing grout will be measured for payment on the basis of the actual time for grout placement in the primary, secondary and tertiary holes and verification holes, as shown or as directed. Measurement for payment shall begin with the injection of grout, and end when grout injection ceases, except where intermittent grouting is ordered by the Contracting Officer. When intermittent grouting is ordered, measurement will stop when intermittent injection ceases. Placing grout mixture will be measured for payment on the actual time the pump is running for placement of grout in the formation. Time will be measured cumulatively to the next whole minute of operation.

1.3.14.3 Unit of Measure

Unit of measure: hours (HR).

1.3.15 BOREHOLE DEVIATION SURVEY (Base Bid)

1.3.15.1 Payment

Payment will be made for the costs associated with satisfactorily completing each borehole survey on 16 primary holes, 3 secondary holes and 6 tertieary holes drilled below 10 feet below top of rock. Costs associated with providing and operating the required equipment shall be included in this cost.

1.3.15.2 Measurement

Borehole deviation surveys will be measured for payment on the basis of satisfactorily completing each deviation survey.

1.3.15.3 Unit of Measure

Unit of measure: each (EA) .

1.3.16 BOREHOLE CAMERA LOG (Base Bid)

1.3.16.1 Payment

Payment will be made for the costs of providing and operating the borehole camera equipment to satisfactorily complete photographic logs of the required initial and all final verification boreholes.

1.3.16.2 Measurement

Borehole camera logging will be measured for payment on the basis of successfully completing each photographic log.

Section 01 22 00 Page 9

1.4.4.3 Unit of Measure

Unit of measure: each (EA) .

1.3.17 STANDBY TIME (Base Bid)

1.3.17.1 Payment

Payment will be made for standby time when the contractor could be providing services, but the Contracting Officer has directed the Contractor to discontinue servicing, and to remain on site and be prepared to resume services when directed by the Contracting Officer. This standby time is due to work by others. Work stoppages caused by inclement weather or other safety reasons (e.g. breaks) do not constitute standby time.

1.3.17.2 Measurement

The Contractor's standby time for interuptions to his work will be tracked by the Contracting Officer. Standby time will be measured by the quarter hour and paid by the hour by rounded to the nearest hour. All costs associated with this item shall in the unit price of the BIDDING

SCHEDULE.

1.3.17.3 Unit of Measure

Unit of measure: Hours (HRS) .

1.3.18 PIEZOMETER DRILLING AND INSTALLATION (Base Bid)

1.3.18.1 Payment

Payment will be made for drilling of holes through overburden materials and coring of rock, installing all piezometer piping, screen and backfill.

1.3.18.2 Measurement

Drilling and installation of piezometer materials will be measured for payment on the basis of linear feet satisfactorilly installed.

1.3.18.3 Unit of Measure

Unit of measure: Linear Feet (LF)..

PART 2 PRODUCTS (Not Applicable)

PART 3 EXECUTION (Not Applicable)

-- End of Section --

Section 01 22 00 Page 10