AMENDMENT NO 0002 Village of Park Forest WaterMain Improvement W912P620B0016.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

REFERENCE: IFB NO. W912P620B0016; "PROJECT TITLE: VILLAGE OF PARK FOREST WATER MAIN REPLACEMENT, PARK FOREST, IL"

IMPORTANT NOTICE: By w ay of this Amendment, administrative corrections have been made to the bid schedule.

See next page for further details.

THE SPECIFICS OF THIS AMENMENT FOLLOW ON THE NEXT PAGES -

1. CONTRACT ID CODE PAGE OF PAGES

1 50

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

16C. DATE SIGNED

BY 10-Sep-2020

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 W912P620B0016

X 9B. DATED (SEE ITEM 11)

10-Aug-2020

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 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

10-Sep-2020

CODE

U.S. ARMY ENGINEER DISTRICT, CHICAGO

231 SOUTH LASALLE STREET SUITE 1500

CHICAGO IL 60604-1437

W912P6 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

W912P620B0016

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

The following items are applicable to this modification:

SUMMARY OF CHANGES

AMENDMENT PARTICULARS

A. AMENDED SECTION 00 10 00 (BID SCHEDULE):

The government is providing a revised bid pricing table (Section 00 10 00 – Solicitation Contract Form), which details the following change: The unit of issue for SUBCLIN 0001BG has been listed correctly therefore, Bidders shall remove and replace the previously issued respective Section with the Revised Section 00 10 00 enclosed hereunder. Bidders shall provide their prices on the Revised Bidding Schedule.

B. AMENDED SPECIFICATION SECTIONS:

a. SECTION 33 05 23.13 ‐ UTILITY HORIZONTAL DIRECTIONAL DRILLING has been revised to clarify various portions of this section. Revised pages are enclosed.

C. CONTRACTOR INQUIRIES AND GOVERNMENT RESPONSES:

Contractor Inquiry 1: I was going through the spec book and noticed an extremely stringent spec for directional drilling.(I highlighted the spec and attached it) We can bid some of these items but it requires specialized equipment that will add a substantial amount of money to the overall bid. Some of the logs being requested our physically impossible to record due to the minimal planned depth such as drilling fluid pressure, drill thrust pressure, and drill pullback pressure.

In short I believe it is in the best interest for USACE and Park Forest that these requirements are removed from the spec section for this project. If you have any questions or want to discuss further, please do not hesitate to reach out to me.

USACE Response 1: SECTION 33 05 23.13 has been revised and is attached. The following paragraphs have been revised as follows:

Paragraph 3.1.6 Guidance Systems has been deleted in its entirety.

Paragraph 3.2 FIELD QUALITY CONTROL has been revised to state the following:

“Maintain drilling logs that accurately provide drill bit location (both horizontally and vertically) at least every 2‐feet along the drill path.

Make all instrumentation, readings, and logs available to the Contracting Officer at all times during operation.”.

END OF AMENDMENT

(Revised Bid Schedule and Specifications follows)

REVISED BID SCHEDULE VIA AMENDMENT NO.0002

REVISED BID SCHEDULE

REVISED BID SCHEDULE VIA AMENDMENT NO. 0002

- BIDDERS SHALL USE THE BELOW REVISED BID SCHEDULE TO FURNISH THEIR BIDS

Section 00 10 00 - Solicitation

ITEM NO SUPPLIES/SERVICES QUANTITY UNIT UNIT PRICE AMOUNT

Base Work (WESTERN AVE TO CROMWELL ROAD)

FFP

This is a parent Contract Line Item, linking its Sub-Items 0001AA through 0001BT. The actual work to be performed is described under the aforementioned Sub-Items. In that regard, the Contractor's pricing to perform the required services shall be provided therein Items 0001AA through 0001BT, wherein the sub-line items themselves identify the quantities require to perform said work.

NET AMT

0001AA 1 Job

MOBILIZATION FOR BASE WORK

FFP

Under this CLIN, the contractor is required to perform mobilization activities. The contractor will be compensated for the totality of its activities needed to mobilize its equipment and labor force to the project site.

Payment Provisions:

The Government will pay all costs for the mobilization of all of the Contractor's plant and equipment at the lump sum price for this item. The Contracting Officer or its Representative may require the Contractor to furnish cost data to justify its bid price for this item if the Contracting Officer deems there's no reasonable relationship to the cost of the work in this contract. Failure to justify the line item price to the satisfaction of the Contracting Officer will result in payment determined by the Contracting Officer of the actual costs, which is not subject to appeal.

PSC CD: Z2PD

0001AB 1 Job

DEMOBILIZATION FOR BASE WORK

FFP

Under this CLIN, the contractor is required to perform demobilization activities.

The contractor will be compensated for the totality of its activities needed to demobilize its equipment and labor force to the project site.

Payment Provisions:

The Government will pay all costs for the demobilization of all of the contractor's plant and equipment at the unit price for this item. The Contracting Officer or its Representative may require the Contractor to furnish cost data to justify its bid price for this item if the Contracting Officer deems there's no reasonable relationship to the cost of the work in this contract. Failure to justify the line item price to the satisfaction of the Contracting Officer will result in payment determined by the Contracting Officer of the actual costs, which is not subject to appeal.

0001AC 1 Job

PRECONSTRUCTION VIDEO RECORDING

FFP

0001AD 1 Job

TRAFFIC CONTROL AND PROTECTION

0001AE 350 Linear

Foot

GRANULAR BACKFILL

0001AF 7 Linear

WATER MAIN (OPEN CUT) 6-INCH C900 PVC

WATER MAIN (OPEN CUT) 6-INCH C900 PVC - (RESTRAINED JOINT)

0001AG 69 Linear

WATER MAIN (OPEN CUT) 8-INCH C900 PVC

0001AH 160 Linear

WATER MAIN (OPEN CUT) 8-INCH C900 PVC - (RESTRAINED JOINT)

0001AJ 1,867 Linear

WATER MAIN

WATER MAIN (DIRECTIONALLY DRILLED) 8-INCH C900 PVC

0001AK 1 Each

WATER SERVICE REPLACEMENT

WATER SERVICE REPLACEMENT, 1" FAR SIDE

0001AL 9 Each

WATER SERVICE REPLACEMENT

FFP

WATER SERVICE REPLACEMENT, 2" FAR SIDE

0001AM 2 Each

WATER SERVICE REPLACEMENT

FFP

WATER SERVICE REPLACEMENT, 1" NEAR SIDE

0001AN 14 Each

WATER SERVICE REPLACEMENT, 2" NEAR SIDE

FFP

WATER SERVICE REPLACEMENT, 2" NEAR SIDE

0001AP 1 Each

CONNECT TO EXISTING WATER MAIN

CONNECT TO EXISTING WATER MAIN (NON-PRESSURE)

0001AQ 1 Each

GATE VALVE, 6"

0001AR 4 Each

GATE VALVE, 8"

0001AS 4 Each

VALVE VAULT, 48"

0001AT 5 Each

FIRE HYDRANT

0001AU 2 Each

REMOVE VALVE BOX

0001AV 5 Each

REMOVE FIRE HYDRANT

0001AW 2 Each

PLUG EXISTING WATER MAIN

0001AX 1 Each

LINE STOP, 6"

0001AY 1 Each

LINE STOP, 8"

0001AZ 4 Each

STORM MANHOLE, TYPE A, 4'-DIA.

FFP

STORM MANHOLE, TYPE A, 4'-DIA., TYPE 1 FRAME AND GRATE

0001BA 2 Each

INLET TYPE A, 2'-DIA., TYPE 1 FRAME

FFP

INLET TYPE A, 2'-DIA., TYPE 1 FRAME AND OPEN LID

0001BB 1 Each

CATCH BASIN TYPE A, 4'-DIA.

FFP

CATCH BASIN TYPE A, 4'-DIA., TYPE 1 FRAME AND OPEN LID

0001BC 3

FIRE HYDRANT BARREL EXTENSION

0001BD 140 Square

Yard

CLASS D PATCH, 6"

0001BE 50 Square

HOT-MIX ASPHALT DRIVEWAY REMOVAL

HOT-MIX ASPHALT DRIVEWAY REMOVAL AND REPLACEMENT, 3"

0001BF 150 Linear

CONCRETE CURB AND GUTTER REMOVAL

CONCRETE CURB AND GUTTER REMOVAL AND REPLACEMENT

0001BG 1,150 Square

CONCRETE SIDEWALK REMOVAL

CONCRETE SIDEWALK REMOVAL AND INSTALLATION, 5"

0001BH 30 Square

DETECTABLE WARNINGS

0001BJ 475 Square

RESTORATION OF LAWNS AND PARKWAYS

0001BK 13 Linear

REPLACEMENT OF STORM SEWER (WMQ), 6"

0001BL 31 Linear

REPLACEMENT OF STORM SEWER (WMQ), 8"

0001BM 59 Linear

REPLACEMENT OF STORM SEWER (WMQ), 12"

0001BN 22 Linear

REPLACEMENT OF STORM SEWER (WMQ), 15"

0001BP 34 Linear

REPLACEMENT OF STORM SEWER (WMQ), 24"

0001BQ 1 Each

SANITARY SEWER SERVICE LINE REPAIR

0001BR 350 Cubic

REMOVAL AND REPLACEMENT OF UNSUITABLE

REMOVAL AND REPLACEMENT OF UNSUITABLE MATERIAL

0001BS 50 Linear

REPLACEMENT OF DRAIN TILES, 6"-12"

0001BT 1 Lot

PAYMENT AND PERFORMANCE BOND

FFP

Payment & Performance Bond for LINE ITEMS 0001AA THROUGH 0001BS - THIS IS A COST REIMBURSABLE LINE ITEM - The Government will reimburse the Contractor for the actual cost of acceptable performance and payment bonds, upon receiving evidence of payment (paid invoice) from the bonding company or agency, not to exceed the total amount of the contract line item. The Government will not pay more than the total line amount for the performance and payment bonds. If the actual cost of the bonds is than the line item amount, the contract will be modified to adjust the line item accordingly.Adjustment(s) to the line item will also be made for any revisions to the actual costs associated with contract changes See FAR 52.232-5(g).

OPTION Option Group 1 (CROMWELL ROAD TO CEDAR)

FFP

This is a parent Contract Line Item, linking its Sub-Items 0002AA through 0002BH. The actual work to be performed is described under the aforementioned Sub-Items. In that regard, the Contractor's pricing to perform the required services shall be provided therein Items 0002AA through 0002BH, wherein the sub-line items themselves identify the quantities required to perform said work.

0002AA 1 Job

OPTION PRECONSTRUCTION VIDEO RECORDING

0002AB 1 Job

OPTION TRAFFIC CONTROL AND PROTECTION

0002AC 370 Linear

OPTION GRANULAR BACKFILL

0002AD 44 Linear

OPTION WATER MAIN (OPEN CUT) 6-INCH C900 PVC

WATER MAIN (OPEN CUT) 6-INCH C900 PVC - (RESTRAINED JOINT)

0002AE 57 Linear

OPTION WATER MAIN (OPEN CUT) 8-INCH C900 PVC

0002AF 229 Linear

0002AG 288 Linear

OPTION WATER MAIN (DIRECTIONALLY DRILLED)

0002AH 10 Each

OPTION WATER SERVICE REPLACEMENT, 1" FAR SIDE

0002AJ 3 Each

OPTION WATER SERVICE REPLACEMENT, 2" NEAR SIDE

0002AK 3 Each

OPTION CONNECT TO EXISTING WATER MAIN

FFP

(NON-PRESSURE)

0002AL 3 Each

OPTION GATE VALVE, 8"

0002AM 3 Each

OPTION VALVE VAULT, 48"

0002AN 2 Each

OPTION FIRE HYDRANT

0002AP 1 Each

OPTION REMOVE VALVE BOX

0002AQ 1 Each

OPTION REMOVE FIRE HYDRANT

0002AR 1 Each

OPTION PLUG EXISTING WATER MAIN

0002AS 1 Each

OPTION LINE STOP, 6"

0002AT 1 Each

OPTION LINE STOP, 8"

0002AU 2 Each

OPTION STORM MANHOLE, TYPE A,

4" DIA, TYPE 1 FRAME AND GRATE

0002AV 1 Each

OPTION CATCH BASIN TYPE A, 4'-DIA., TYPE 1

FFP

FRAME AND OPEN LID

0002AW 1

OPTION FIRE HYDRANT BARREL EXTENSION

0002AX 60 Square

OPTION CLASS D PATCH, 6"

0002AY 10 Square

OPTION HOT-MIX ASPHALT DRIVEWAY REMOVAL

0002AZ 30 Linear

OPTION CONCRETE CURB AND GUTTER REMOVAL

0002BA 1,325 Square

OPTION CONCRETE SIDEWALK REMOVAL

0002BB 20 Square

OPTION DETECTABLE WARNINGS

0002BC 175 Square

OPTION RESTORATION OF LAWNS AND PARKWAYS

0002BD 20 Linear

OPTION REPLACEMENT OF STORM SEWER (WMQ), 10"

0002BE 46 Linear

OPTION REPLACEMENT OF STORM SEWER (WMQ), 12"

0002BF 50 Cubic

OPTION

0002BG 10 Linear

REPLACEMENT OF DRAIN TILES, 6"-12"

0002BH 1 Lot

OPTION PERFORMANCE AND PAYMENT BOND

FFP

Payment & Performance Bond for LINE ITEMS 0002AA THROUGH 0002BG - THIS IS A COST REIMBURSABLE LINE ITEM - The Government will reimburse the Contractor for the actual cost of acceptable performance and payment bonds, upon receiving evidence of payment (paid invoice) from the bonding company or agency, not to exceed the total amount of the contract line item. The Government will not pay more than the total line amount for the performance and payment bonds. If the actual cost of the bonds is than the line item amount, the contract will be modified to adjust the line item accordingly.

Adjustment(s) to the line item will also be made for any revisions to the actual costs associated with contract changes See FAR 52.232-5(g).

0002BJ

DUE TO A SYSTEM ERROR THIS CLIN CANOT BE DELETED

FOB: Destination

0002BK

DUE TO A SYSTEM ERROR THIS CLIN CANOT BE DELETED

FOB: Destination

OPTION Option Group 2 (CEDAR STREET TO WESTERN)

FFP

This is a parent Contract Line Item, linking its Sub-Items 0003AA through 0003BK. The actual work to be performed is described under the aforementioned Sub-Items. In that regard, the Contractor's pricing to perform the required services shall be provided therein Items 0003AA through 0003BK, wherein the sub-line items themselves identify the quantities required to perform said work

0003AA 1 Job

OPTION PRECONSTRUCTION VIDEO RECORDING

0003AB 1 Job

OPTION TRAFFIC CONTROL AND PROTECTION

0003AC 380 Linear

0003AD 78 Linear

0003AE 235 Linear

0003AF 1,010 Linear

OPTION WATER MAIN (DIRECTIONALLY DRILLED)

0003AG 5 Each

OPTION WATER SERVICE REPLACEMENT, 1" FAR SIDE

0003AH 4 Each

OPTION WATER SERVICE REPLACEMENT, 2" FAR SIDE

0003AJ 4 Each

OPTION WATER SERVICE REPLACEMENT, 2" NEAR SIDE

0003AK 2 Each

OPTION CONNECT TO EXISTING WATER MAIN

0003AL 3 Each

OPTION GATE VALVE, 8"

0003AM 3 Each

OPTION VALVE VAULT, 48"

0003AN 4 Each

OPTION FIRE HYDRANT

0003AP 2 Each

OPTION REMOVE VALVE BOX

0003AQ 1 Each

OPTION REMOVE FIRE HYDRANT

0003AR 2 Each

OPTION PLUG EXISTING WATER MAIN

0003AS 1 Each

OPTION LINE STOP, 6"

0003AT 2 Each

OPTION STORM MANHOLE, TYPE A, 4'-DIA., TYPE 1

STORM MANHOLE, TYPE A, 4'-DIA., TYPE 1 FRAME AND GRATE

0003AU 1 Each

OPTION INLET TYPE A, 2'-DIA., TYPE 1 FRAME AND

FFP

INLET TYPE A, 2'-DIA., TYPE 1 FRAME AND OPEN LID

0003AV 2 Each

OPTION CATCH BASIN TYPE A, 4'-DIA., TYPE 1

CATCH BASIN TYPE A, 4'-DIA., TYPE 1 FRAME AND OPEN LID

0003AW 2

OPTION FIRE HYDRANT BARREL EXTENSION

0003AX 170 Square

OPTION CLASS D PATCH, 6"

0003AY 20 Square

OPTION HOT-MIX ASPHALT DRIVEWAY REMOVAL AND

0003AZ 130 Linear

0003BA 800 Square

OPTION CONCRETE SIDEWALK REMOVAL

0003BB 40 Square

0003BC 550 Square

0003BD 33 Linear

OPTION REPLACEMENT OF STORM SEWER (WMQ), 8"

0003BE 25 Linear

OPTION REPLACEMENT OF STORM SEWER (WMQ), 12"

0003BF 43 Linear

OPTION REPLACEMENT OF STORM SEWER (WMQ), 15"

0003BG 7 Each

OPTION SANITARY SEWER SERVICE LINE REPAIR

0003BH 50 Cubic

0003BJ 25 Linear

OPTION REPLACEMENT OF DRAIN TILES, 6"-12"

0003BK 1 Lot

OPTION PERFORMANCE AND PAYMENT BOND

FFP

Payment & Performance Bond for LINE ITEMS 0003AA THROUGH 0003BJ - THIS IS A COST REIMBURSABLE LINE ITEM - The Government will reimburse the Contractor for the actual cost of acceptable performance and payment bonds, upon receiving evidence of payment (paid invoice) from the bonding company or agency, not to exceed the total amount of the contract line item. The Government will not pay more than the total line amount for the performance and payment bonds. If the actual cost of the bonds is than the line item amount, the contract will be modified to adjust the line item accordingly.

Adjustment(s) to the line item will also be made for any revisions to the actual

OPTION Option Group 3 (WESTERN AVE AT DOGWOOD)

FFP

This is a parent Contract Line Item, linking its Sub-Items 0004AA through 0004AQ. The actual work to be performed is described under the aforementioned Sub-Items. In that regard, the Contractor's pricing to perform the required services shall be provided therein Items 0004AA through 0004AQ, wherein the sub-line items themselves identify the quantities required to perform said work.

0004AA 1 Job

OPTION PRECONSTRUCTION VIDEO RECORDING

0004AB 1 Job

OPTION TRAFFIC CONTROL AND PROTECTION

0004AC 50 Linear

0004AD 31 Linear

0004AE 5 Linear

0004AF 1 Each

OPTION CONNECT TO EXISTING WATER MAIN

FFP

0004AG 1 Each

OPTION REMOVE VALVE BOX

0004AH 1 Each

OPTION PLUG EXISTING WATER MAIN

0004AJ 1 Each

OPTION LINE STOP, 8"

0004AK 100 Square

OPTION CLASS D PATCH, 6

0004AL 50 Linear

0004AM 200 Square

0004AN 20 Square

0004AP 50 Square

0004AQ 1 Lot

OPTION PERFORMANCE AND PAYMENT BOND

FFP

Payment & Performance Bond for LINE ITEMS 0004AA THROUGH 0004AP - THIS IS A COST REIMBURSABLE LINE ITEM - The Government will reimburse the Contractor for the actual cost of acceptable performance and payment bonds, upon receiving evidence of payment (paid invoice) from the bonding company or agency, not to exceed the total amount of the contract line item. The Government will not pay more than the total line amount for the performance and payment bonds. If the actual cost of the bonds is than the line item amount, the contract will be modified to adjust the line item accordingly.

Adjustment(s) to the line item will also be made for any revisions to the actual

SUMMATION OF PRICES-

BASE BID ITEMS (0001AA THROUGH 0001BT): $_____________________________________

GROUP 1 OPTION ITEMS (0002AA THROUGH 0002BH):$______________________________

GROUP 2 OPTION ITEMS (0003AA THROUGH 0003BP):$_______________________________

GROUP 3 OPTION ITEMS (0004AA THROUGH 0004AQ):$_______________________________

OVERALL TOTAL BID PRICE (ALL BID ITEMS, TO INCLUDE THE RESPECTIVE SUB‐ITEMS & OPTION ITEMS):

Dogwood Street Water Main Improvements, Village of Park Forest,IL W912P620B0016

a. Vertical Tolerance: Provide minimum cover below channel bottom as specified on the plans. Pilot hole may go deeper if necessary to prevent breakout.

b. Horizontal Tolerance: Plus/minus - 60-inches from the centerline of the product pipe.

c. Curve Radius: No curve is acceptable with a radius less than 1,000-feet .

d. Entry Point Location: Make pilot hole entry point within plus/minus - 60-inches of the location shown on the drawings or as directed by the Contracting Officer in the field.

e. Exit Point Location: Make the exit point location within plus/minus - 60-inches of the location shown on the drawings or as directed by the Contracting Officer in the field.

f. Mandatory pipeline cover requirements are as shown on the drawings or as specified.

3.1.6 Guidance Systems

Walkover guidance systems are not acceptable for this project; use a magnetic survey tool locator installed behind the pilot string cutting head and an electric grid (tru-tracker) system for this project.

3.1.6 Reaming

Conduct reaming operations at the Contractor's discretion. Determine the type of back reamer to be utilized by the type of subsurface soil conditions that are encountered during the pilot hole drilling operation.

The reamer type is at the Contractor's discretion.

3.1.7 Pull Back

Fully assemble the entire pipeline to be installed via direction drill prior to commencement of pull back operations.

Support the pipeline during pullback operations in a manner to enable it to move freely and prevent damage. Install the pipeline in one continuous pull.

Minimize torsion stress by using a swivel to connect the pull section to the reaming assembly.

Maximum allowable tensile force imposed on the pull section is not to exceed 90percent of the pipe manufacturer's safe pull (or tensile) strength. If the pull section is made up of multiple pipe size or materials, the lowest safe pull strength value governs and the maximum allowable tensile force is not to exceed 90 percent of this value.

Minimize external pressure during installation of the pullback section in the reamed hole. Replace damaged pipe resulting from external pressure at no cost to the Government. Buoyancy modification is at the discretion of the Contractor.

SECTION 33 05 23.13 Page 6

AMD #0002 - 09/10/20

Dogwood Street Water Main Improvements, Village of Park Forest,IL W912P620B0016

3.1.8 Drilling Fluids Disposal

Collect drilling fluid returns in the entrance pit, exit pit, or spoils recovery pit. Immediately clean up any drilling fluid spills or overflows from these pits.

Dispose of fluids in a manner that is in compliance with all permits and applicable Federal, State, and local regulations. Disposal of the drilling fluids may occur on approved land owned by the Government subject to written approval from the Contracting Officer. Spread the drilling slurry over the Government-approved disposal area and plow into the soil.

Conduct disposal in compliance with all relative environmental regulations, right-of-way and work space agreements, and permit requirements.

3.1.9 Burp Holes

Provide burp holes to reduce the amount of dilling fluid spills and spoil overflows throught out the project.

3.1.10 Connection of Product Pipe to Pipeline

After the product pipe has been successfully installed, allow the product pipe to recover for 24 hours prior to connection of the pipeline. Ensure that a sufficient length of the product pipe has been pulled through the hole so that the pull-nose is not pulled back into bore hole due to stretch recovery of the product pipe.

3.2 FIELD QUALITY CONTROL

Maintain drilling logs that accurately provide drill bit location (both horizontally and vertically) at least every 2-inches 2-feet along the drill path. In addition, keep logs that record, as a minimum the following, every 15 minutes throughout each drill pass, back ream pass, or pipe installation pass:

a. Drilling Fluid Pressure,

b. Drilling Fluid Flow Rate,

c. Drill Thrust Pressure,

d. Drill Pullback Pressure, and

e. Drill Head Torque.

Make all instrumentation, readings, and logs available to the Contracting Officer at all times during operation.

3.3 CLOSEOUT ACTIVITIES

Immediately upon completion of work, remove all rubbish and debris from the job site. Remove all construction equipment and implements of service leaving the entire area involved in a neat condition acceptable of the Contracting Officer.

Immediately clean "blow holes" or "breakouts" of drilling fluid to the surface and return the surface area to its original condition. Dispose of

SECTION 33 05 23.13 Page 7

AMD #0002 - 09/10/20