S05 Amend A00005 36C25524R0070 Questions 110-144.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 6

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 110-144 for review and action.

Note: Please note questions 139-144 are revised responses to previous questions.

This is the final questions for this project. No further questions will be presented.

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

Timothy Parison Contracting Officer

Response to RFIs Amend A00005 Questions 110 -144 and

Revisions to Previous Questions Solicitation No. 36C225524R0070

589A6-22-402 Cooling Tower Replacement

110. Is this project tax-exempt?

Response: Yes.

111. Please provide the location of the 6 control valves being replaced. (Chiller, cooling tower, piping leading to the cooling tower, etc.)

Response: The 6 valves in the scope of work are at the inlet to both sides of the 3 cooling towers distribution basin. These valves should be manual flow control valves provided by cooling tower manufacturer. There are 3 new 10-inch diameter butterfly valves horizontally located before entering the towers underneath. These valves need to be connected to METASYS.

112. Please provide the sequencing for the pumps, chillers, cooling towers, filter, etc.

Response: Johnson Controls METASYS is our current Building Automation System. They have the current sequence of operations.

113. Will there be any temp sensors on the supply or return side? What will they read, outdoor temp and humidity?

Response: Temperature and flow sensors are existing to remain.

114. What are the specifications for the control valves? (GPM, size, gate, butterfly, etc.)

Response: The 6 valves in the scope of work are at the inlet to both sides of the 3 cooling towers distribution basin. These valves should be manual flow control valves provided by cooling tower manufacturer. There are 3 new 10-inch diameter butterfly valves horizontally located before entering the towers underneath. These valves need to be connected to METASYS.

115. What do you want to be monitored in the valves?

Response: Percentage of open or closed.

116. Will the new pumps connect to a VFD, have ECM motors, or something else to control the speed?

Response: VFD Starters.

117. Is the VFD existing or will it need to be replaced?

Response: All VFD’s are to be replaced.

118. What control do you want on the speed/pumps? (enable, speed, motor running, any alarms, etc.)

Response: All VFD controls should include physical inputs of start/stop, 1-10v speed control, status and BACnet network parameters

119. Will the side stream sand filter be connected to the controls? If so, we will need the sequence, sizes, specs, components, etc.

Revisions to Previous Questions

Response: The basin sweeper is a stand-alone system. METASYS should only monitor on/off.

120. Will differential pressures be needed across the pumps, chillers, sand filters, supply, etc.?

Response: The sand filter differential pressure is managed by the basin sweeper controller. All other controls will be identical to current METASYS controls.

121. Will the cooling towers need a water level alarm, monitor and/or enable?

Response: All controls will be identical to current METASYS controls.

122. Since this is tying into the existing JCI Metasys system is this considered the basis of design?

Response: Yes

123. Do you intend to utilize sweeper piping in the remote sump vs. in the tower?

Response: Yes.

124. Specification 23 65 00.2.1.I - are equalizer flumes between the two adjacent cells and is there a requirement to pipe an equalizer line to the third? They are all independent now, we believe.

Response: No equalizer lines required.

124. Should the return line to the towers be increased back to 24'' aft er the three-way valve for volume like it currently is?

Response: No.

125. Should the bypass line be increased back to 24'' aft er the three-way valve like it is currently and if not are we to assume we will need to infill the existing hole in the sump for the smaller pipe?

Response: The existing pipe has a metal skirt, your new 16” needs a skirt around as well.

126. Please provide all design criteria for the filtration system including pump design, piping arrangement, connection points to the tower system, motor HP, definition for "High Rate" sand filter and controls.

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.

127. Please provide complete design information on for sump piping plan sheet AE011. To include pipe sizing, connection points, material type in sump and full intent of the arrangement shown. Intent is unclear.

Response: The sump pump piping is existing to remain. Sump piping detail is for the basin sweeper system and shown for possible routing. Basin sweeper piping should follow manufacturer guidelines. See attachment 5 for updated plans.

Revisions to Previous Questions

128. Please indicate on the drawings exactly where the demo/connection points are for both the Supply and return exterior piping.

Response: See attachment 5 for updated plans.

129. Specification 23 65 00.2.5 states factory to furnish new control panel for new towers complete with 3R enclosures, VFDs, Control devices, etc. Please confirm.

Response: Confirmed.

130. Please confirm Basin Heaters are not required, as we were unable to identify anything in the volume #2 specifications.

Response: Confirmed.

131. Please confirm that no heat tracing or insulation is required on exterior piping for year-round operations supporting the EHRM units.

Response: Confirmed.

132. Please confirm the intent is to reuse the existing pump VFDs located in the existing MCC electrical room.

Response: All VFD’s are to be replaced.

133. Is any new lightning protection required on the cooling towers?

Response: Yes.

134. Please confirm we are reusing the existing power conductors from the MCC to the towers and pumps.

Response: All power cables should be replaced.

135. What power will be available for temporary cooling?

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

136. Will the VA's chiller plant personnel be monitoring the temporary cooling equipment in the event of a failure or is that the contractor’s responsibility?

Response: It is the contractor responsibility.

137. Please confirm that all stainless hardware is required on piping systems as specified.

Response: Confirmed.

Revisions to Previous Questions

138. Is the contractor supposed to carry the cost for passivation on if the galvanize construction on is chosen, or will the water treatment contractor the VA is contracted with be doing through the VA?

Response: The contractor is solely responsible for passivation costs.

Revisions to Previous questions.

139. Revision of question 28.

We assume the VA conducted a physical inspection of the existing low voltage conductors, control wiring, etc., and perhaps concluded that none of the existing should be reused? Please confirm that all wiring associated with the towers, pumps, controls etc. is to be replaced.

Response: All power cables should be replaced.

140. Revision of question 29.

If any conductors are to remain, are we to have the existing conductors meggered to ensure insulation integrity? And if post award testing resulted in issues how will the VA handle them?

Response: All power cables should be replaced.

141. Revision of question 41

Please provide all design criteria for the filtration system including pump design, piping arrangement, connection points to the tower system, motor HP, definition for "High Rate" sand filter and controls.

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.

142. Revision of question 42

Please provide complete design information for sump piping plan sheet AE011. To include pipe sizing, connection points, material type in sump and full intent of the arrangement shown. Intent is unclear.

Revisions to Previous Questions

Response: The sump pump piping is existing to remain. Sump piping detail is for the basin sweeper system and shown for possible routing. Basin sweeper piping should follow manufacturer guidelines. See attachment 5 for updated plans.

143 Revision of question 53

Is the contractor supposed to carry the cost for passivation if the galvanize construction is chosen or with the water treatment contractor the VA is contracted with be doing through the VA?

Response: The contractor is responsible for passivation costs.

144. Revision of question 54

The mechanical subs are looking for piping design for the pump ping & sand filter. Can the VA provide what the design is for this piping?

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.

No Further Questions for this Solicitation.