S05 Amend A00004 Questions 56-109 - Responses.pdf

5. PROJECT NUMBER (if applicable)

CODE 7. ADMINISTERED BY

2. AMENDMENT/MODIFICATION NUMBER

CODE

6. ISSUED BY

8. NAME AND ADDRESS OF CONTRACTOR

4. REQUISITION/PURCHASE REQ. NUMBER 3. EFFECTIVE DATE

9A. AMENDMENT OF SOLICITATION NUMBER

9B. DATED

PAGE OF PAGES

10A. MODIFICATION OF CONTRACT/ORDER NUMBER

10B. DATED

BPA NO. 1. CONTRACT ID CODE

FACILITY CODE CODE

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:

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

E. IMPORTANT:

is extended,

(a) By completing Items 8 and 15, and returning __________ copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted; or (c) By separate letter or electronic communication 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 is not extended.

12. ACCOUNTING AND APPROPRIATION DATA

(REV. 11/2016)

is required to sign this document and return ___________ copies to the issuing office. is not, 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.

15C. DATE SIGNED

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(b).

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 letter or electronic communication, provided each letter or electronic communication makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER

Contractor

16C. DATE SIGNED

14. DESCRIPTION OF AMENDMENT/MODIFICATION

16B. UNITED STATES OF AMERICA

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 16A. NAME AND TITLE OF CONTRACTING OFFICER

15B. CONTRACTOR/OFFEROR

STANDARD FORM 30 PREVIOUS EDITION NOT USABLE

Prescribed by GSA - FAR (48 CFR) 53.243

(Type or print) (Type or print)

(Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

(Number, street, county, State and ZIP Code)

(If other than Item 6)

(Specify type of modification and authority)

(such as changes in paying office, appropriation date, etc.)

(If required)

(SEE ITEM 11)

(SEE ITEM 13)

(X)

CHECK

ONE

13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACTS/ORDERS,

IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

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

1 8

05/14/2024

589A6-24-402

36C255

Department of Veterans Affairs Network Contracting Office (NCO) 15 3450 S 4th Street Trafficway

Leavenworth KS 66048

36C255

Department of Veterans Affairs Network Contracting Office (NCO) 15 3450 S 4th Street Trafficway

Leavenworth KS 66048

To all Offerors/Bidders 36C25524R0070

04-19-2024 X

This amendment is to Promulgate the following changes:

Promulgate Questions 56-109 for review and action.

Attachment 5- Updated Drawings pgs 1-3 and Attachment 6 - Table of Contents of Specs. pgs 1-4

Please acknowledge this amendment in your proposal, Effective date of 05/14/2024

Timothy Parison Contracting Officer

Response to RFIs Amend A00003 Questions 56-109 Solicitation No. 36C225524R0070

589A6-22-402 Cooling Tower Replacement

56. Can the required SSHO positions be fulfilled by the qualified superintendent?

Response: Yes

57. Can the commercial photos required by spec be taken by the site superintendent?

Response: Yes

58. Will the Owner accept the use of the industry leading Procore Project Management software as the primary submittal and data tracking tool for this project?

Response: Yes

59. Please confirm that the commissioning agency will be contracted directly by the VA.

Response: No. GC will provide a Commissioning Agent.

60. Where will the designated parking area be for workers accessing the construction site?

Response: Contractor parking is behind building 71 except for loading and unloading.

61. How soon after award is NTP expected to be issued?

Response: Within 30 days.

62. Does all piping for the towers need to be heat traced and insulated?

Response: No heat tracing. Only the basin sweeper piping shall be insulated.

63. Assume existing vertical turbine pump VFD's located in MCC electrical room ETR?

Reconnect to new pumps?

Response: All VFD’s are to be replaced.

64. Electrical power required for temporary equipment? If so, please provide electrical specs.

Response: Temporary equipment will be leased by contractor. VA can not provide electrical specs for equipment that is unknown.

65. New lighting protection system required?

Response: Yes.

66. Is it acceptable to re-use existing power conductors from MCC to new Cooling Towers and

Turbine Pumps?

Response: All power cables should be replaced.

67. Can we get a better detail on how Sand Filter and Backwash tank are to be piped and with what pipe sizes?

Solicitation No. 36C225524R0070

589A6-22-402 Cooling Tower Replacement

Response: Response: Basin sweeper will be independent of tower system. Basis of Design was Tower-Flo Model TFB-66. Possible pipe routing is shown on sheet 002. Final routing should follow manufacturer guidelines. See attachment 5 for updated plans.

68. Are Marley Cooling Towers Acceptable?

Response: Yes.

69. How much pipe on the Turbine Pumps are we to demo and replace?

Response: The 10” check valve, and 12” to 10” reducer. Use new 12” silent check valve.

70. Any pipe in the sump tank to be replaced?

Response: No.

71. Any chemical treatment in the mechanical area being modified?

Response: No chemical treatment is being modified.

72. Where does the temporary cooling hook up to existing system? Connections for Piping and

Electrical?

Response: There is a wooden panel at the exterior wall of the chiller building that give access to chillers 1 &2. GC will use the most convenient for the rental chiller connections. Power for temporary cooling will need to come from the transformer. Contractor will need to provide disconnect.

73. Is the cooling tower structure to be reutilized?

Response: The supporting structure must be reutilized.

74. What are the requirements and design for temporary cooling?

Response: Contractor is responsible to maintain the ability for the hospital to have cooling throughout the project. Whether that is with a temporary chiller, or the contractor phases the replacement in a manner where cooling can be maintained. Phasing and the schedule of the tower’s replacement are up to the contractor and will be approved by the VA through the submittal process.

75. How much of the parking lot by hole opening for temporary cooling can we utilize rental equipment?

Response: As much as the rental unit needs as close to the Chiller Plant wall. The parking lot will remain open for chiller plant employees, suppliers, and their service contractors.

76. Can the hole shown at walk thru for temp cooling be increased in size?

Response: No.

Solicitation No. 36C225524R0070

589A6-22-402 Cooling Tower Replacement

77. The current tower system consists of three (3)- 650-ton cooling towers. Is the temporary system that will be required need to consist of the same tonnage?

Response: Contractor is responsible to maintain the ability for the hospital to have cooling throughout the project. Whether that is with a temporary chiller, or the contractor phases the replacement in a manner where cooling can be maintained. Phasing and the schedule of the tower’s replacement are up to the contractor and will be approved by the VA through the submittal process.

78. Is there any house power available for the temp equipment or should a generator be supplied? If so, do you require redundancy?

Response: Power for temporary cooling will need to come from the transformer. Contractor will need to provide disconnect.

79. Where will the temp system be tied into the permanent building system?

Response: Contractor is responsible to maintain the ability for the hospital to have cooling throughout the project. Whether that is with a temporary chiller, or the contractor phases the replacement in a manner where cooling can be maintained. Phasing and the schedule of the tower’s replacement are up to the contractor and will be approved by the VA through the submittal process.

80. How much of the parking lot adjacent to the mechanical building will be free to be used for the temp equipment?

Response: As much as the rental unit needs as close to the Chiller Plant wall. The parking lot will remain open for chiller plant employees, suppliers, and their service contractors.

81. If needed, can the access panel from the exterior into the mechanical building be increased in size?

Response: No.

82. Who will be responsible for moving the supplies that are blocking the interior side of the access panel?

Response: VA employees.

83. Can the VA provide searchable specification document?

Response: PDF files provided are searchable.

84. Is the PEMB listed in the specification and the 18x30 vertical metal carport to be one and the same?

Solicitation No. 36C225524R0070

589A6-22-402 Cooling Tower Replacement

Response: Yes

85. The concrete pad on AE011 looks to be 13’x19’ and the PEMB in Attachment 2 is 18’x30’. is the carport to be installed on the new pad?

Response: The 18’ by 30’ car port will cover the entirety of the 13’ x 19’ concrete pad that will house the basin sweeper skid. The GC will provide two concrete spread footings to contain the 30’- 0” length of the supports.

86. If not, where is this carport to be installed? Is there another concrete foundation to be installed for this carport?

Response: The 18’ by 30’ car port will cover the entirety of the 13’ x 19’ concrete pad that will house the basin sweeper skid. The GC will provide two concrete spread footings to contain the 30’- 0” length of the supports.

87. Please provide a table of contents for the specifications.

Response: See Attachment 6

88. Do the existing cooling towers need to be 100% operational during the project until a point where the new system can be placed into functional operation before demo of old cooling towers can take place?

Response: Contractor is responsible to maintain the ability for the hospital to have cooling throughout the project. Whether that is with a temporary chiller, or the contractor phases the replacement in a manner where cooling can be maintained. Phasing and the schedule of the tower’s replacement are up to the contractor and will be approved by the VA through the submittal process.

89. Is there a phasing for the replacement of these cooling towers?

Response: Contractor is responsible to maintain the ability for the hospital to have cooling throughout the project. Whether that is with a temporary chiller, or the contractor phases the replacement in a manner where cooling can be maintained. Phasing and the schedule of the tower’s replacement are up to the contractor and will be approved by the VA through the submittal process.

90. There are three existing cooling towers, how many can be demoed and replaced at one time?

Response: Contractor is responsible to maintain the ability for the hospital to have cooling throughout the project. Whether that is with a temporary chiller, or the contractor phases the replacement in a manner where cooling can be maintained. Phasing and the schedule of the tower’s replacement are up to the contractor and will be approved by the VA through the submittal process.

91. Are we required to install temporary cooling towers while the new cooling towers being replaced?

Response: Contractor is responsible to maintain the ability for the hospital to have cooling throughout the project. Whether that is with a temporary chiller, or the contractor phases the

Solicitation No. 36C225524R0070

589A6-22-402 Cooling Tower Replacement replacement in a manner where cooling can be maintained. Phasing and the schedule of the tower’s replacement are up to the contractor and will be approved by the VA through the submittal process.

92. Specification section 010000-15, Phase 1 states to design and submit the cooling towers and design and submit basin sweeper and design and submit lightning protection. Is this a design build project? Is the general contractor required to hire a licensed architect and engineer to produce designed drawings for this project?

Response: This is not a design build project. All equipment design/layouts will be handled in the submittal review process.

93. Specification section 010000-4 item 5. To what extent is the existing supporting structure to be repaired? Drawings do not indicate any modifications to the existing structure.

Response: The structure must be levelled to 1/360 or one inch in 60 feet – 0 inches. The steel must be surface prepared and painted before setting the new Cooling Towers.

94. Specification section 010000-6 item 8, concrete slab for basin sweeper piping system. Is this the 13’x19’ concrete slab as detailed on drawing AE011 concrete pad plan?

Response: The 18’ by 30’ car port will cover the entirety of the 13’ x 19’ concrete pad that will house the basin sweeper skid. The GC will provide two concrete spread footings to contain the 30’- 0” length of the supports.

95. Specification section 010000-21, 1.10, are we responsible for hiring a soils engineering firm to take boring samples of the existing soils and prepare a soils report or is there an existing soils report with borings in that area?

Response: The Contractor is fully responsible for the Soil Investigation and backfill.

96. Sheet AE011 detail B concrete post barricades, what are the locations of these barricades.

Response: Two bollards should be placed on the west side of the new basin sweeper skid.

97. Specification section 070800- exterior commissioning, what exterior are we commissioning?

Response: No exterior commissioning is required.

98. On drawing AE011-Chiller Plant Demo Plan, there is piping that is cross hatched. Is the intent to only remove the cross hatched piping? Is it the intent that all other piping shown on this drawing can be re-used?

Response: Confirmed

99. Is it the intent that the 24” below grade condenser water piping that is dashed be removed and replaced or is it to be reused?

Response: Piping is existing to remain.

Solicitation No. 36C225524R0070

589A6-22-402 Cooling Tower Replacement

100. Is the 16” diameter piping from the towers to the sump basin required to be new or is the intent to re-use the existing piping?

Response: Piping is existing to remain.

101. The drawings are marked “Not For Construction”. Will a signed and sealed set of “For Construction” drawings be provided prior to bid?

Response: Drawings have been updated see attachment 5.

102. The drawings show the 6” backwash drain line crossing over the power manhole.

a. Is this a new line?

Response: The backwash piping is not to be buried. It shall be insulated and jacketed for protection where exposed. It will attach to the buried drainpipe shown on the plans. See attachment 5

b. Is the intent for this line to be routed above grade then drop down below grade where the piping becomes dashed.? If so, how high must the pipe be above grade over the manhole?

Response: The backwash piping is not to be buried. It shall be insulated and jacketed for protection where exposed. It will attach to the buried drainpipe shown on the plans. See attachment 5

103. Can the Engineer of record provide the equipment manufacturer basis of design? This would be for the pumps, cooling towers, sand filters, etc…

Response: VTPs: Layne & Bowler® Size 16GM single stage Speed 1,770 RPM, 2,660 GPM @ 100 Feet TDH, Duty-Point Power 85.5 HP, 79.7% efficiency. Cooling Towers: MARLEY® NC8411WAS @ 1,300 Cooling Tons with HWT 99.4°F, CWT 87.4°F, WBT 81.8°F. Basin Sweeper:

United Industries - TOWER-FLO® - TFB-66

104. On drawing AE011-Chiller Plant Demo Plan, there is piping that is cross hatched. Is the intent to only remove the cross hatched piping? Is it the intent that all other piping shown on this drawing can be re-used?

Response: Confirmed

105. Is it the intent that the 24” below grade condenser water piping that is dashed be removed and replaced or is it to be reused?

Response: Piping is existing to remain.

106. Is the 16” diameter piping from the towers to the sump basin required to be new or is the intent to re-use the existing piping?

Response: Piping is existing to remain.

107. The drawings are marked “Not For Construction”. Will a signed and sealed set of “For Construction” drawings be provided prior to bid?

Solicitation No. 36C225524R0070

589A6-22-402 Cooling Tower Replacement

Response: Drawings have been updated see attachment 5.

108. The drawings show the 6” backwash drain line crossing over the power manhole.

a. Is this a new line?

b. Is the intent for this line to be routed above grade then drop down below grade where the piping becomes dashed? If so, how high must the pipe be above grade over the manhole?

Response: The backwash piping is not to be buried. It shall be insulated and jacketed for protection where exposed. It will attach to the buried drainpipe shown on the plans. See attachment 5

109. Can the Engineer of record provide the equipment manufacturer basis of design? This would be for the pumps, cooling towers, sand filters, etc…

Response: VTPs: Layne & Bowler® Size 16GM single stage Speed 1,770 RPM, 2,660 GPM @ 100 Feet TDH, Duty-Point Power 85.5 HP, 79.7% efficiency. Cooling Towers: MARLEY® NC8411WAS @ 1,300 Cooling Tons with HWT 99.4°F, CWT 87.4°F, WBT 81.8°F. Basin Sweeper:

United Industries - TOWER-FLO® - TFB-66

End of Questions

See attached document: Amend A00004 Attachment 5 Updated Drawings.

See attached document: Amend A00004 Attachment 6 Table of Contents of Specs.