W912DR-16-B-0022-0002.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 follow ing changes into the solicitation:

1. Answ er RFI Questions

2. Provide list of site visit attendees

3. Update Plans & Specs ( See continuation page for changes)

4. Update Statement of Work

1. CONTRACT ID CODE PAGE OF PAGES

1 9

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

16C. DATE SIGNED

BY 09-Sep-2016

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 W912DR-16-B-0022

X 9B. DATED (SEE ITEM 11)

22-Aug-2016

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

09-Sep-2016

CODE

U.S. ARMY CORPS OF ENGINEERS, BALTIMORE

10 S. HOWARD STREET

ROOM 7000

BALTIMORE MD 21201

W912DR 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

W912DR-16-B-0022

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

SECTION SF 30 - BLOCK 14 CONTINUATION PAGE

The following have been added by full text:

AMENDMENT 0002 CHANGES

SOLICITATION:

1. SECTION 00010, STATEMENT OF WORK: DELETE “pump motors,” in second sentence.

2. SECTION 00010, STATEMENT OF WORK: DELETE “pumps,” in third sentence.

SPECIFICATIONS:

3. Section 40 05 13, Paragraph 2.4.1.1 Stainless Steel Pipe: ADD the following at the end of this paragraph: “Stainless steel piping and fittings shall be type 316L. All piping 2-1/2 inch diameter and smaller shall be schedule 40S. Piping 3-inch and larger shall be schedule 10S.”

4. Section 01 05 00, Paragraph 1.10.1 SEQUENCE OF CONSTRUCTION, Subpart (e.5):

CHANGE “at least 90 days in advance” to “at least 30 calendar days in advance.”

5. Section 01 05 00, Paragraph 1.10.1 SEQUENCE OF CONSTRUCTION, Subpart (h):

DELETE this paragraph.

6. Section 01 50 00, Paragraph 3.5.2 ADMINISTRATIVE FIELD OFFICES: DELETE “Within the Contractor’s field office, provide space for Government Project Manager’s standard office desk and chair. Also provide telephone at desk for use by Government’s Project Manager.”

DRAWINGS:

7. Plate 008: CHANGE KEY NOTE 1 to read as follows: “ALL NEW OR MODIFIED PIPING

SHALL BE RESTRAINED.”

8. Plate 008: ADD the following new KEY NOTES:

“6. UNLESS OTHERWISE SHOWN, EXISTING DUCTILE IRON PIPING SHALL BE

CUT AND REUSED. PROVIDE NEW RETRAINED COUPLING ADAPTORS ON ALL

CUT FLANGED PIPING. DO NOT REUSED EXISTING FLANGED COUPLING

ADAPTORS.

7. ALL MODIFIED OR RELOCATED PRESSURE DEVICES SHALL BE REPLACED

WITH NEW UNITS.

8. EXISTING RELOCATED RESIDUALS PLUG VALVES SHALL BE REUSED AND

REINSTALLED AS SHOWN.”

9. Plate 009: CHANGE KEY NOTE 2 to read as follows: “ALL NEW OR MODIFIED PIPING

10. Plate 009: ADD the following new KEY NOTES:

“7. UNLESS OTHERWISE SHOWN, EXISTING DUCTILE IRON PIPING SHALL BE

CUT AND REUSED. PROVIDE NEW RETRAINED COUPLING ADAPTORS ON ALL

CUT FLANGED PIPING. DO NOT REUSED EXISTING FLANGED COUPLING

ADAPTORS.

8. ALL MODIFIED OR RELOCATED PRESSURE DEVICES SHALL BE REPLACED

WITH NEW UNITS.

9. EXISTING RELOCATED RESIDUALS PLUG VALVES SHALL BE REUSED AND

REINSTALLED AS SHOWN.

10. EXISTING RELOCATED RESIDUALS PLUG VALVES SHALL BE REUSED AND

11. Plate 010, KEY NOTE 2: DELETE the word “(COPPER)” after the words “INSTALL NEW

3” AIR VENT”.

12. Plate 010: CHANGE KEY NOTE 3 to read as follows: “ALL NEW OR MODIFIED PIPING

13. Plate 10: ADD the following new KEY NOTES:

“5. UNLESS OTHERWISE SHOWN, EXISTING DUCTILE IRON PIPING SHALL BE

CUT AND REUSED. PROVIDE NEW RETRAINED COUPLING ADAPTORS ON ALL

CUT FLANGED PIPING. DO NOT REUSED EXISTING FLANGED COUPLING

ADAPTORS.

6. ALL MODIFIED OR RELOCATED PRESSURE DEVICES SHALL BE REPLACED

WITH NEW UNITS.

7. EXISTING RELOCATED RESIDUALS PLUG VALVES SHALL BE REUSED AND

14. Plate 011, KEY NOTE 2: DELETE the word “(COPPER)” after the words “INSTALL NEW

3” AIR VENT”.

15. Plate 011: CHANGE KEY NOTE 3 to read as follows: “ALL NEW OR MODIFIED PIPING

16. Plate 11: ADD the following new KEY NOTES:

“6. UNLESS OTHERWISE SHOWN, EXISTING DUCTILE IRON PIPING SHALL BE

CUT AND REUSED. PROVIDE NEW RETRAINED COUPLING ADAPTORS ON ALL

CUT FLANGED PIPING. DO NOT REUSED EXISTING FLANGED COUPLING

ADAPTORS.

7. ALL MODIFIED OR RELOCATED PRESSURE DEVICES SHALL BE REPLACED

WITH NEW UNITS.

8. EXISTING RELOCATED RESIDUALS PLUG VALVES SHALL BE REUSED AND

17. Plate 020, SHEET KEYNOTES: Revise Note 12 to read as follows:

“PROVIDE SHAFT GROUNDING DEVICE ON EXISTING MOTOR. SHAFT

GROUNDING DEVICE SHALL BE A MAINTENANCE-FREE, CONDUCTIVE MICRO-

FIBER, SHAFT GROUNDING RING WITH A MINIMUM OF TWO ROWS OF

CIRCUMFERENTIAL MICRO-FIBERS TO DISCHARGE SHAFT VOLTAGES AWAY

FROM THE BEARINGS TO GROUND. CONTRACTOR TO COORDINATE WITH

ORIGINAL PUMP MANUFACTURER (i.e. VOGELSANG) FOR RETROFIT

INSTALLATION.”

18. Plate 020, SHEET KEYNOTES: Delete Note 13.

19. Plate 022, Demolition Section C: - CHANGE the note in the upper right corner of this section to read as follows: MODIFY/REPLACE EXST 6” DR PIPING TO

ACCOMMODATE PRESSURE DEVICE MODIFICATIONS (TYP AT 6 PUMPS).”

20. Plate 022, Demolition Section C: ADD a note with a leader pointing to the ball check valves located at the base of the two 6”DR pipe sections shown to be modified in the center of this section that reads as follows: “EXISTING PUMP DISCHARGE BALL CHECK VALVE

TO BE RELOCATED AND REINSTALLED (TYP. AT ALL SIX PUMPS)”.

21. Plate 023, Plan: CHANGE “3” PLUG VALVE” to read as “3” PLUG VALVE WITH

REDUCER (TYP 2 PLACES)”.

22. Plate 023, Section A: CHANGE the identifier immediately above PE D61-1-3 to read as follows: “NEW LOCATION FOR NEW ANNULAR SEAL, GAUGE AND SWITCH (TYP

AT 6 PUMP DISCHARGE PIPES).”

23. Plate 023, Section A: ADD a note with a leader pointing to the ball check valves located above the PE/PI/PSH devices installed on the downstream side of the pumps reading as follows: “REINSTALLED EXISTING BALL CHECK VALVE (TYP ONE PER PUMP)”.

24. Plate 023, Section C: DELETE the note provided beneath Section C and above Section D.

25. Plate 023, Section C: ADD the following note with a leader pointing to the new pressure elements installed on the suction lines serving P-D61-1-3 and P-D61-3-3: “NEW

LOCATION FOR NEW PRESSURE SEAL, GAUGE AND SWITCH (TYP AT 6 PUMP

SUCTION PIPES).”

26. Plate 023, Section A: ADD a note with a leader pointing to the ball check valves located above the PE/PI/PSH devices installed on the downstream side of the pumps reading as follows: “REINSTALLED EXISTING BALL CHECK VALVE (TYP ONE PER PUMP)”.

27. Plate 023: ADD the following to this Plate:

“SHEET KEY NOTES:

1. ALL NEW OR MODIFIED PIPING SHALL BE RESTRAINED.

2. UNLESS OTHERWISE SHOWN, EXISTING DUCTILE IRON PIPING SHALL BE

CUT AND REUSED. PROVIDE NEW RETRAINED COUPLING ADAPTORS ON

ALL CUT FLANGED PIPING. DO NOT REUSED EXISTING FLANGED

COUPLING ADAPTORS.

3. ALL MODIFIED OR RELOCATED PRESSURE DEVICES SHALL BE REPLACED

WITH NEW UNITS.

4. EXISTING RELOCATED RESIDUALS CHECK VALVES SHALL BE REUSED AND

SECTION 00010 - SOLICITATION CONTRACT FORM

The following have been modified:

SCOPE OF WORK (SOW)

Dalecarlia Basin Collector

STATEMENT OF WORK

Statement of Work: The work includes electrical, mechanical, process and controls components upgrades to the Dalecarlia Water Treatment Plant (WTP) sedimentation basins and the associated residual transfer pumps. The work includes the phased replacement of twelve existing motor control centers, and motor starters. Specific work items include installation of variable frequency drives, valves, air release, and other mechanical equipment, modifications to existing process water piping for the installation of air release features, pressure gauges, density meters, Programmable Logic Controller (PLC) program modifications and configuration of required equipment with SCADA. Construction Duration: 210 Calendar Days

SECTION 00100 - BIDDING SCHEDULE/INSTRUCTIONS TO BIDDERS

The following have been added by full text:

RFI QUESTIONS & ANSWERS

QUESTIONS AND ANSWERS

FOR INFORMMATION ONLY (FIO)

DALECARLIA BASIN COLLECTOR MODIFICATIONS

WASHINGTON AQUEDUCT, WASHINGTON, D.C.

Question No. 1: Please clarify the extent of new vs reused pipe, valves and devices:

a: Is existing pipe to be cut and modified where possible?

Answer No. 1a: Unless otherwise shown, the existing ductile iron residuals piping can be cut and reused provided new restrained flanged coupling adaptors are provided on all cut piping.

New flanged piping can be provided as an alternative if the Contractor prefers. See Amendment No. 2 for clarification.

b: Are existing check valves reused or replaced?

Answer No. 1b: The existing residuals check valves and residuals plug valves shall be reused and reinstalled where shown. New plug valves shall be provided for all new stainless steel vent lines. See Amendment No. 2 for clarification.

c: Are existing flanged adapters new or replaced?

Answer No. 1c: New restrained flanged coupling adaptors shall be provided for all modified piping. See Amendment No. 2 for clarification.

Question No. 2: The specification for the stainless steel vent piping is not clear. Please advise the material grade (such as 304L) and the wall thickness (such as schedule 10).

Answer No. 2: Stainless steel piping and fittings shall be type 316L. All piping 2-1/2 inch diameter and smaller shall be schedule 40S. Piping 3-inch and larger shall be schedule 10S. See Amendment No. 2 for clarification.

Question No. 3: On plate 23, plan view, the vent to the sediment tank is shown to be 2”, but the tap and valve are 3”. Please clarify the pipe size.

Answer No. 3: All vent piping in the Dalecarlia Residuals Pump Station shall be 3-inch diameter except for the 2-inch vent piping installed downstream of the two 3-inch plug valves installed on the residuals pump discharge headers. The vent pipe size shall be reduced to 2-inch downstream of these two plug valves to limit the flow of water discharged back to the sedimentation basins continuously. See Amendment No. 2 for clarification.

Question No. 4: In the prebid meeting it was stated that the project would be awarded quickly so that work could be performed in the upcoming November-March period. Please confirm.

Answer No. 4: Yes. Work involving basin outages has to be performed during the low season period indicated in Specification 01 05 00. Hence we will move expeditiously to make an award and issue the Notice to Proceed. This will allow the Basin outages indicated in that Specification section to be scheduled and completed before the low season ends.

Question No. 5: Refer to the article on “Electronic Software for DBA” on page 42 of 63 in the Solicitation. It states that the Contractor is encouraged to use an electronic system to process and submit certified payrolls to the Government. It is stated that this will be submitted with the bid.

Please clarify. Please confirm that a pdf of certified payrolls can be emailed to the Government as has been acceptable on past jobs.

Answer No. 5: Yes. See Amendment No. 2 for clarification.

Question No. 6: The “Statement of Work” on page 4 of the solicitation states that the work includes replacement of pump motors and pumps. Please confirm that no pump motors and pumps are being replaced.

Answer No. 6: Correct. No pump or pump motors are being replaced. See Amendment No. 2 for clarification.

Question No. 7: Refer to article 1.10 (Sequence of Construction) in specification section 01 05

00. There are various constraints required resulting in a typical basin flow chart of the following: 30 days’ notice to the owner to drain a basin, 7 days for the owner to drain a basin, and 30 days of work in the basin. Each basin needs to be completed one at a time between 11/1/16-3/31/16. The contract cannot be awarded in time (by 10/1/16) to meet these constraints.

In addition, this does not take into account time required for submittal preparation, submittal review, and fabrication lead time. In order for there to be a realistic time schedule for both the Owner and the Contractor, please confirm that you will add time to the contract to include the low demand period in winter 2017-2018 or confirm that the contractor will not be charged liquidated damages.

Answer No. 7: No work is anticipated to be performed during the winter 2017-2018 months. Per the Amendment No. 2 clarification, the duration for work in each basin will be 15 days. The timeline is tight, but the basin work required can be scheduled and executed during the outage window of Nov. 1, 2016 thru 31 Mar. 2016.

Question No. 8: Refer to article 3.5.2. in specification section 01 50 00. Please confirm that the Government Project Manager will be working out of the Contractor’s trailer. On past jobs at Dalecarlia, this has not been the case.

Answer No. 8: The Contractor should plan to have an on-site trailer sited where shown on the contract drawings for his Project Manager and other field staff to work from. The Government will not need any space in this trailer. See Amendment No. 2 for clarification.

Question No. 9: Note #2 on Plate #3 calls for the air vent to be copper however the drawing call for Stainless steel. Please clarify

Answer No. 9: Note 2 on Plate 3 does not appear to call out copper pipe for air vent piping, however, note 2 on Plates 010 and 011 do. See Addendum No. 2 for clarification.

Question No. 10: On Plate #22 in the Residuals Pump Station Section C there is a symbol that is on the discharge side of the pump that is between that 6” Annular Pressure seal and a FCA that is unlabeled. This appears to be a valve. Please specify the type of valve desired.

Answer No. 10: See Amendment No. 2 for clarification.

Question No. 11: Please provide the name and version of existing programing software used as per “SEQUENCE OF CONTROL” – “PLC AND HMI GENERAL REQUIREMENTS” -Part #8

Answer No. 11: The PLC’s contained in existing panels CP-D57, CP-D61, CP-21-1-1 and -2-1 and CP-22-3-1 and -4-1 use Allen Bradley Version 19.11 software. The HMI software for the residuals portion of the plant SCADA screens is Iconics Genesis GraphWorx 32, version 9.30.207.

Question No. 12: Please confirm that the building permit will be obtained by the owner. If not, then please provide the cost so we can include it in our bid.

Answer No. 12: No building permit is required for this project.

Question No. 13: Please confirm that the trade permits can be obtained at no cost to the contractor. If not, then please provide the cost so we can include it in our bid.

Answer No. 13: No trade permits are required for this project.

Question No. 14: Article 1.2.2 (specification section 01 00 00) states to provide a scheduling program and maintenance to the owner. However, article 2.1.2.2. (Specification section 01 32

01.00 10) states that computer software licenses only need to be provided if the contractor chooses software other than Primavera P6. Please confirm that no computer software needs to be provided to the owner if Primavera P6 is used by the contractor.

Answer No. 14: Correct. No computer software needs to be provided to the owner if Primavera P6 is used by the contractor.

Question No. 15: There are two existing MCCs that require modifications to the existing equipment, D-57 and D-61. What is the manufacturer and model number of the existing MCC to be modified?

Answer No. 15: The MCCs are General Electric Evolution Series E9000

Question No. 16: What is the manufacturer and model number of switchboard 57 which is to have breakers added to it as per drawing D57-E601?

Answer No. 16: The existing breakers in SWBD 57 are General Electric Spectra RMS bolt on style circuit breakers.

Question No. 17: On drawing D57 -E603 there is a note 13 listed in the General notes section but there is no note 13 listed on the one-line diagram itself. Please clarify.

Answer No. 17: See Amendment No. 2 for clarification.

(End of Summary of Changes)