36C25218B0230-00004000.docx

SF 30 Continuation Page 36C252-18-B-0230 695-15-116 Replace 3 Boilers, Building 112 Clement Zablocki Milwaukee VAMC

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

BY

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) 00004 03-09-2018 695-18-2-6920-0001 695-15-116 36C252 Department of Veterans Affairs Great Lakes Acquisition Center (GLAC) 115 S 84th Street, Suite 101 Milwaukee

WI

53214-1476 36C252 Department of Veterans Affairs Great Lakes Acquisition Center (GLAC) 115 S 84th Street, Suite 101 Milwaukee

WI

53214-1476 To all Offerors/Bidders

36C25218B0230 02-13-2018

X X X March 21, 2018 at 2:00pm CT

695-3680162-6920-854200-3220-23NR5MC06

X

Amendment A00004:

1. Revised Bid Schedule includes Brand Name or Equal Fill-in

2. Inclusion of FAR 52.211-6 Brand Name or Equal and VAAR 852.211-73 Brand name or Equal

3. Questions & Responses

4. Specification Revisions

5. Drawing Clarifications & Drawing M-102

Anne Vossler Contracting Officer

Amendment A00004

1. Revised Bid Schedule (Attachment)

2. The following Provisions and Clauses are hereby incorporated into the solicitation:

FAR 52.211-6 Brand Name or Equal (AUG 1999)

(a) If an item in this solicitation is identified as “brand name or equal,” the purchase description reflects the characteristics and level of quality that will satisfy the Government’s needs. The salient physical, functional, or performance characteristics that “equal” products must meet are specified in the solicitation.

(b) To be considered for award, offers of “equal” products, including “equal” products of the brand name manufacturer, must—

(1) Meet the salient physical, functional, or performance characteristic specified in this solicitation;

(2) Clearly identify the item by—

(i) Brand name, if any; and

(ii) Make or model number;

(3) Include descriptive literature such as illustrations, drawings, or a clear reference to previously furnished descriptive data or information available to the Contracting Officer; and

(4) Clearly describe any modification the offeror plans to make in a product to make it conform to the solicitation requirements. Mark any descriptive material to clearly show the modification.

(c) The Contracting Officer will evaluate “equal” products on the basis of information furnished by the offeror or identified in the offer and reasonably available to the Contracting Officer. The Contracting Officer is not responsible for locating or obtaining any information not identified in the offer.

(d) Unless the offeror clearly indicates in its offer that the product being offered is an “equal” product, the offeror shall provide the brand name product referenced in the solicitation.

VAAR 852.211-73 Brand Name or Equal (JAN 2008)

(Note: as used in this clause, the term "brand name" includes identification of products by make and model.)

(a) If items called for by this invitation for bids have been identified in the schedule by a "brand name or equal" description, such identification is intended to be descriptive, but not restrictive, and is to indicate the quality and characteristics of products that will be satisfactory. Bids offering "equal" products (including products of the brand name manufacturer other than the one described by brand name) will be considered for award if such products are clearly identified in the bids and are determined by the Government to meet fully the salient characteristics requirements listed in the invitation.

(b) Unless the bidder clearly indicates in the bid that the bidder is offering an "equal" product, the bid shall be considered as offering a brand name product referenced in the invitation for bids.

(c)(1) If the bidder proposes to furnish an "equal" product, the brand name, if any, of the product to be furnished shall be inserted in the space provided in the invitation for bids, or such product shall be otherwise clearly identified in the bid. The evaluation of bids and the determination as to equality of the product offered shall be the responsibility of the Government and will be based on information furnished by the bidder or identified in his/her bid as well as other information reasonably available to the purchasing activity. CAUTION TO BIDDERS. The purchasing activity is not responsible for locating or securing any information that is not identified in the bid and reasonably available to the purchasing activity. Accordingly, to insure that sufficient information is available, the bidder must furnish as a part of his/her bid all descriptive material (such as cuts, illustrations, drawings or other information) necessary for the purchasing activity to:

(i) Determine whether the product offered meets the salient characteristics requirement of the Invitation for Bids, and

(ii) Establish exactly what the bidder proposes to furnish and what the Government would be binding itself to purchase by making an award. The information furnished may include specific references to information previously furnished or to information otherwise available to the purchasing activity.

(2) If the bidder proposes to modify a product so as to make it conform to the requirements of the Invitation for Bids, he/she shall:

(i) Include in his/her bid a clear description of such proposed modifications, and

(ii) Clearly mark any descriptive material to show the proposed modifications.

(3) Modifications proposed after bid opening to make a product conform to a brand name product referenced in the Invitation for Bids will not be considered.

The clause entitled "Brand name or equal" applies only to the following item:

ITEM # 1: Cleaver-Brooks, Nebraska, D-Type, Water Tube, Non-Refractory, 50,000-lb Boilers Bidding on:

Manufacturer name ________________________________________ Brand ___________________________________________________ No. _____________________________________________________

3. Questions & Responses:

1. Can there be an exception to use studding nozzle for steam drum connections in order to decrease shipping weight of the boilers. See page 12, paragraph 8.b. in spec section 23 52 33?

Q1 Response: No exceptions are allowed.

1. MD-101 note 1: Will the existing B1, B2, B3 fit from their present location to existing overhead door and through overhead door without dismantling the boilers? If they do not fit, we would assume that it is the VA’s financial responsibility to reimburse contractor for extra labor and materials to demo boilers to a point which would allow them to fit through said area and openings.

Q2 Response: Boilers in the basis of design will fit as specified on drawings.

1. Amendment 1 on MD 102 key note 12 would indicate that the RO is to remain while this pipe is not X’d out in the plan view. Will the boilers fit under this pipe? We would assume that the VA has assumed responsibility that the boilers will fit under this pipe without removal.

Q3 Response: See Drawings Revisions for changes. For information, see also following measurements made by VA on other potential height interferences (may not be all-inclusive):

BOILER HEIGHT CONFLICTS

1. After addendum 1 and 2 there is no indication of RO pipe/valve spec anywhere in the documents. If the RO is to be SCH 80 PVC how will we handle the tie ins to ST-2, DA-2, and the cross connect to the CTPS and PCR systems as these systems will be extremely hot? Most SCH 80 PVC valves etc. have a 140-degree service temperature and we would assume that the RO piping needs to be stainless steel at some point. Because of the speedy walkthrough we were not able to confirm the existing conditions material type for the RO system. Please provide RO pipe and valve specifications for this work.

Q4 Response: RO pipe and valve specifications are attached. How to handle the tie- ins to ST-2, DA-2 etc. are means and methods.

1. Please indicate RO tie point for the RO system now that the tie point and valving has been removed in Amendment 1 and 2 on M-104 and that we are told this piping on M-104 is existing.

Q5 Response: See Drawing Revisions.

1. Is PCV 700 from TC-103 the scheduled out PRV from M-700?

Q6 Response: Yes.

1. On M-700 PRV 102 is called out as a 2-stage steam pressure regulator while on M-603 the schematic is drawn out as a single stage PRV. A note on M-107 calls out detail 7 on M-504 which is a single stage PRV. Please confirm if PRV is single stage or dual stage.

Q7 Response: See Drawing Revision note that PRV is dual stage.

1. M-603 calls out a 1 ½” LPS steam line from PRV 102 to DA-2, while M-107 and M-108 call out a 3" LPS line to DA -2. What is the line size to DA-2?

Q8 Response: See Drawing Revisions.

1. M-601 and M-603 call out a 4" HPS tie point and piping to PRV 102 while M-501 Photo 10 tie point is obviously a 2" or smaller tap. What is the tie point location and size for PRV 102?

Q9 Response: See Drawing Revisions.

1. M-603 and M-602 both call out ¾" CF piping while on M-103 notes 2 & 3 call out to install ½" PEX to match existing, and on M-502 1" CFP is indicated on detail #4. While in the spec under Chemical feed its called out to run everything in SS welded tubing. What is the pipe size, material spec, and valve spec?

Q10 Response: See Specification Revisions.

1. On M-603 ST-2 has the gage glass and high/low level alarm blow down piping running into the drain on the 1st floor, while ST-2 has the valves capped with hose connection, should these be piped the same?

Q11 Response: The systems should be installed as shown on the drawings.

1. Who does instrument air for pneumatic air valves and tie point locations, mechanical or control contractor?

Q12 Response: It is up to the prime contractor’s discretion if they want to sub this out to the control contractor.

1. Please provide WHESCO’s detailed scope of what it includes and doesn’t include.

Q13 Response: WHESCO’s sole source work is to provide boiler system controls required by plans and specifications, cabinet removal, transportation to their facility, complete interior gutting (demolition) and replacement with new including terminations and electronics testing, transportation back, installation, programming, training, functional testing, and commissioning support. Ancillary site preparation work may be done by other trades (electrical, carpentry, and others) as required on plans and specifications.

1. M-105 note 8 calls to replace the existing boiler sampling station, while on M-102 note 3 also calls to replace the existing boiler sampling station, while on M-504 detail 10 calls for both the BWS from the boilers and the FWS from the deaerator to be piped to the sample cooler. Does DA-2 go from M-105 sample cooler or to M-102 sample cooler?

Q14 Response: See Drawing Revisions.

1. Will AC-1&2 fit down existing stair way? We were unable to measure existing conditions during the walkthrough.

14. Response: See construction drawings that show stairs to scale.

1. M-603 ST-2 calls out to have a makeup water valve and meter set up from the RO system. Who provides the meter and control valve as there is no TC drawing representing ST-2?

Q16 Response: WHESCO

1. M-603 calls out to have one makeup water valve and meter set up from the RO system, while on M-502 Detail ST-2 calls out to have two makeup water valves and two meters. One set fed from the City water supply and one set from the soft water supply, what are we to follow?

Q17 Response: See Drawing Revisions.

1. M-603 calls out to have one makeup water valve from the RO system and one make up water from the PCR, while on M-502 there is one makeup water valve from the CTPD system and one makeup water valve from the soft water system. Which is correct?

Q18 Response: See Drawing Revisions.

1. M-503 detail 1 calls out a Gas meter for each boiler, confirm that FE 102 on TC-100 is the same device Q19 Response: See Drawing Revisions.

1. M-502 detail 3 calls out a flow meters on 2 separate CPD lines, confirm who supplies these.

Q20 Response: WHESCO

1. M-502 detail 3 shows a level transmitter, please confirm who supplies this.

Q21 Response: WHESCO

1. M-502 detail 3 calls for a soft water and an emergency water make up connections, while on M-603 it shows this same connection out to be only RO water which is confirmed by M-105 note 12. Which is correct?

Q22 Response: See Drawing Revisions.

1. Specification Section 23 21 11-page 28 paragraph C: Examination of welders – Will it be acceptable to submit welder continuity logs in lieu of qualifying welders in the presence of the COR?

Q23 Response: Bid to contract requirements.

1. Drawing M-102 issued in Amendment 1. Note 13 has been revised to demo and then provide new piping for the 6” Sterilization HPS Main. Will the 6” line that connects to the 8” line shown on M-104 and then ties into the 6” Sterilization HPS Main still be needed or are we just re-locating the 6” line that comes off the 10” header and then connect to the existing 6” Sterilization HPS piping that drops thru the floor to the tunnel as shown on drawing M-102?

Q24 Response: See Revised Drawings.

1. Will the main level floor be able to support the weight of moving the old and new boilers in and out of the facility or will shoring be required?

Q25 Response: Floor designed for 100 psf live load.

1. Specification Section 23 21 11 is missing Ball Valves in paragraph 2.15. What are the Valve Type Designations?

Q26 Response: See Specifications Revision note that gives designations.

1. Specification Section 23 21 11 does not address valve requirements for Chemical Feed, Compressed Air, or Reverse Osmosis piping systems. What are valve requirements for these systems and add to the specification?

Q27 Response: See specification revision note.

1. Specification Section 230911-19 2.2 Burner Management System (BMS) states “Boiler manufacturer to provide replacement of existing flame safeguard.” Drawing TC-101 states the BMS is existing. Are the existing BMS components to be replaced to match existing burners to remain and provided by the burner manufacturer? The new BMS components will be located in the combustion control panel.

Q28 Response: New flame safeguard Chassis must be furnished to match existing boilers 4 and 5.

1. Will flue gas recirculation be included on the design boilers? There are many locations in the specification where it is mentioned flue gas recirculation, if required, but “if required” is not mentioned in some sections where flue gas recirculation is discussed.

Q29 Response: Low NOx emissions (30 ppm NOx) at annual boiler tuning may be achieved by recirculation systems, steam atomization, or other system provided by contractor, with certification submitted that emissions requirements can be met. No change to specifications.

1. The design for the new deaerator and condensate tanks show they each come with a pump skid with two control panels, drawing M-506. The new Remote Balance of Plant control panel includes the transmitters for the new deaerator and new condensate tank; deaerator steam pressure, deaerator feedwater pressure, deaerator steam flow with v-cone element, deaerator level, condensate tank level, deaerator temperature and condensate tank temperature to match the existing transmitters and will have the inputs and outputs relative to controlling the deaerator and condensate tanks. Are the design control panels for each the deaerator and condensate tank going to include the VFD controls for the pumps, any other control?

Q30 Response: Control contractor to provide VFD and Logic for DA and Condensate Transfer station in remote panel.

1. Will the new air compressors will be tied into the Balance of Plant controls for monitoring purposes?

Q31 Response: Include point to monitor status of compressors.

1. Are the three VFDs for the deaerator pumps all located in one control panel with one disconnect? If one of the VFDs or pumps needs servicing all pumps will be down, then are all three VFDs for the condensate tank pumps all located in one control panel with one disconnect?

Q32 Response: As per bid documents E-101 dated 10/13/2015 there are three (3) disconnects shown for deaerator pumps (one for each pump) and there are three (3) disconnects shown for condensate tank pumps (one for each pump).

1. Prior to the specification being posted, we were asked to remove any portions of our proposal that could be done by another subcontractor. We then removed the electrical and mechanical install from our cost. The price included on the Sole Sourced page does not include the electrical or mechanical install. However, in the section 01 00 00-4 1.2 J 1. states “The boiler control system and new wiring shall be provided by WHESCO…”. We can provide the electrical install price in addition to the cost estimate mentioned in the Sole Source Justification and Approval document.

Q33 Response: See Specification Revisions note number 2. New wiring is still required per contract, just not sole sourced through WHESCO.

1. Can the control panels to be reused be brought back to WHESCO’s shop for modification?

Q34 Response: The cabinets may be re-used. Internal components, displays, are all required to be new.

1. For payment of stored onsite materials in accordance with VAAR 852.236-83(d), can clarification be provided on what percentage of stored materials will be paid for? What documentation, if any, not listed in VAAR 852.236-83(d) will be required for payment of offsite stored materials, such as the boilers?

Q35 Response: The contracting officer will consider up to 80% of material cost for equipment procured by the contractor. Refer to specifications section 010000, paragraph 1.6.D.

1. Spec Section 01 35 26, 1.7, A calls for the prime contractor to designate a minimum of one SSHO at the project site. Spec Section 01 35 26, 1.7, D requires The SSHO or an equally-qualified Designated Representative/alternate will maintain a presence on the site during construction operations in accordance with FAR Clause 52.236-6. Far clause 52.236-6 specifically talks about superintendence by the contract. Spec Section 01 35 26, 1.7, C states that the SSHO has to be a separate qualified individual from the prime contractors superintendent with duties only as the SSHO. Is the spec requiring a superintendent and a separate qualified individual as the SSHO to be onsite at all times that work is being performed?

Q36 Response: Both requirements apply. Follow the specification and the FAR clause.

1. How much detail is expected to be included in the 3D modeling of boilers units?

Q37 Response: See Specifications Revisions on 010000 Paragraph 1.7.

1. First sentence of section 1.7: ‘External survey - furnished a report’….is an external survey required or is this more of a visual inspection/walk-around with COR?

Q38 Response: Exterior survey is also to be scanned and modeled, as indicated.

1. Section 1.7 (A.) v.: why Revit 2015 model?

Q39 Response: Revit 2015 or more current versions are allowed.

1. Are the extents of the scan Gridlines A thru E & 1 thru 4.2?

Q40 Response: No. The specification section 010000, paragraph 1.7.A states the limits are within 100 feet of buildings exterior.

1. Specification Section 23 21 11 paragraph 2.12 indicates Chemical Feed piping is to be stainless steel tubing with welded fittings. Is this correct, because I believe the existing Chemical Feed piping at the boilers is all carbon steel with threaded fittings?

Q41 Response: Follow the specifications.

1. The furnace heat release was stated to not exceed 50,000 BTU/hr_ft3 in the spec. However, on the separate boiler schedule, M-700, the furnace volume is listed as 818 ft3. Based on 818 ft3 furnace volume, the heat release will exceed 50,000 BTU/hr_ft3 unless we accommodate a larger furnace to meet the max heat release of 50,000 BTU/hr_ft3.

Q42 Response: The Furnace Volume requirement on the schedules should take precedence.

1. Could you please confirm which requirement take precedence, the heat release or furnace volume requirement?

Q43 Response: The Furnace Volume requirement on the schedules should take precedence.

Q43. Economizer design. Could you please confirm whether the economizer has to be designed with Flue gas by-pass diverter as stated? According to our past experience with VA project, we can also by-pass the economizer on feedwater line instead of the flue gas line for the same purpose with less space and complexity. Will this approach be acceptable?

Q44 Response: No exception from requirements. Follow plans and specifications.

Q44. Will Simoneau boilers with Preferred burners be allowed for this project?

Q45 Response: See Brand Name or Equal Provision and Clauses included in this amendment.

Q45. What is the approval process for boilers other than Cleaver-brooks. Do I need to request prior approval from the engineers or just ask in the general question format for approval?

Q46 Response: See Brand Name or Equal Provision and Clauses included in this amendment.

Q46. What is the specification for the Reverse Osmosis (RO) piping?

Q47 Response: See Specification Revisions.

Q47. Amendment #1 removed Plan Note #2 on Drawing M-104, but did not remove several other Plan Notes associated with that RO line. The piping schematic (Drawing M-602) was also revised to show this line as “existing”. This 3” RO line continues onto additional drawings, which do not indicate it as existing. To what extent (if any) of this RO line is existing?

Q48 Response: The 3” RO line is existing wherever shown on drawings, and to be relocated upward to accommodate removal and replacement of boilers and equipment.

Q48. Amendment #1 removed Plan Note #12 on Drawing MD-102, but did not remove Plan Note #1 on Drawing M-102. Will this section of RO piping need to be removed and/or replaced?

Q49 Response: See Drawing Revisions.

Q49. What is the correct construction completion date for this project? The Bid Solicitation indicates October 15, 2019. The General Requirements indicate the final (3rd) boiler fully operational by November 1, 2019. Drawing G-004 indicates October 1, 2019.

Q50 Response: Construction completion date is 630 days from notice to proceed. These other dates in the question are not same as construction completion date. Drawing G-004 date is incorrect. Bid Solicitation date is incorrect. Dates given in specifications section 010000, paragraph 1.6.G, pertaining to completion of boiler on-line (not same as contract completion date) are correct.

Q50. Amendment 2 eliminated all notes related to the RO piping on Drawing M-104. The Piping Schematic (M-602) was revised in Amendment 1 to indicate this line is existing. RO water is still required to the new Deaerator/Feed Water Tank as well as the new Surge Tank. The drawings do not indicate where the new tie-in location will be for new RO piping to the new Deaerator/Feed Water and Surge Tanks. Where is this tie-in location?

Q51 Response: See Drawing Revisions.

Q51. Vol 1 specs: Why are the DIV 02 demolition specifications provided with contract documents but is not listed in the specification table of contents?

Q52 Response: Bidder is incorrect. Full specifications are in the solicitation.

Q52. Vol 1 DIV 07: TABLE OF CONTENTS - SECTION 00 01 10 has DIVISION 07 - THERMAL AND MOISTURE PROTECTION, SECTIONS(S) 07 22 00 - Roof and Deck Insulation & 07 92 00 - Joint Sealants shown to be included in the Volume 1 Specifications TOC. Where are the missing sections?

Q53 Response: See Specification Revisions. Drawing A-601 detail 3 and 4, sealant system between hollow metal door frame and masonry wall will be one-component, elastomeric polyurethane sealant. Color as selected by VA.

Q53. Enlarged A-101, Detail 2 shows Keynote #8 at Stairway 2, Construction Plan Notes do not have a Keynote #8 please clarify. What is Keynote #8?

Q54 Response: See Specification Revisions.

Q54. Drawing A-101 - “EXISTING FIRST FLOOR CONSTRUCTION PLAN” shows Building Section Indicator 5/A-501. Drawing A-501 - Detail 3 is an elevation and not a section. Should 5/A-101 actually be Building Section Indicator 1/A-502?

Q55 Response: Yes. Reference 3/A-501.

Q55. Demolition plan note #2 on AD-102 states to look at roofing plan for notes regarding removal of lightning protection conductors. AD-104 shows the lightning protection conductors at roof deck by dashed line. Key note 12 points to the dashed conductor line and states to refer to E-103 for scope of work. Note 3 on E-103 discusses lightning protection components. Please clarify the extent of the required work; are we replacing the entire system?

Q56 Response: This information is not on drawing AD-104. The existing lightning protection system components on E-103 are shown half tone and the new lightning protection system components are shown heavy line weight.

Q56. AD-201: Various places in the drawings discuss having protection for the east entranceways due to the masonry demolition and egress to material onsite. Does the VA require temporary tunnels extending out for both the main entrance (double door) as well as the generator room (single door)? We also view the AMD 02 G-004 drawing for laydown and site utilization. Will the VA require the contractor to place waste management dumpsters in either staging area 1 or staging area 2, or is this plan flexible due to the SOW of the east wall?

Q57a. Response: Restricted access and tunnels are required. Means and methods are up to the contractor.

Q57b. Response: Dumpster location may be coordinated to be near/adjacent tunnels.

Q57. AD-201/A-501: Can you provide the lintel detail or schedule per note 1?

Q58 Response: Refer to drawing S-101 detail plan 1, new lintel is indicated as an “L-1”. New steel lintel size is described under “NOTE” below drawing title.

Q58. Can you provide the locations for the detail 5 on A-101 on Trough Box Isometrics?

Q59 Response: On Detail Plan 2 Sheet A-101, keynote #5 describes this trough box isometric and additionally provides instruction to refer to “detail 5 on this drawing”.

Q59. Is there a current warranty holder on this roof? Can you provide for the several flashing and penetration details on this project? Can you also provide an EPDM specification if required?

Q60a. Response: There is no current roof warranty.

Q60b. Response: See drawing M-504 detail 2 for roof membrane flashing detail.

Q60c. Response: See Key note 3 on A-104.

Q60. A-301: There are several notes throughout the solicitation for exposed surface cleaning that can leave a lot of room for interpretation; hence, cost. Note states to 'clean all exposed surfaces, hand scrape all loose and foreign debris throughout the equipment level 300. Please provide a short narrative to clarify this scope. Are we blasting the structural steel and scraping the entire horizontal ceiling surface?

Q61a. Response: Contractor to refer to Specification Section 09 91 00 PAINTING for a full description regarding Surface Preparation, 09 91 00, 3.4. Detail 1 on drawing A-301 further specifies extent of painting work.

Q61b. Response: Sand blasting not specified for any surfaces.

Q61. Sheet A-104 Note 18, provide roof flashing, only points to three locations; however there are several more penetration locations. Is the VA purposely calling attention to just these locations?

Q62 Response: Keynote #18 points to the three boiler vent stack locations, see Keynote #14 for additional information for other roof penetrations and flashings.

Q62. A-104 notes that contractor must clean all window openings and references A-102 for window locations. Nothing is found on A-102, please advise.

Q63 Response: This text does not appear on A-104, refer to drawing A-103 for window opening locations. The existing window openings are shown on detail 1, drawing AD-401. There are five (5) window openings.

Q63. Sheet MD-101 Note 10 states that VA will store/salvage controls panels on-site at location designated by VA. What is the maximum distance to storage on campus for hauling purposes?

Q64 Response: The distance is within one mile.

Q64. Can you provide specification Divisions 22 and 23 for this project?

Q65 Response: Bidder is incorrect. Full specifications are in the solicitation.

Q65. Sole Source says to use Hilti Firestopping while E-002 states to use 3M products only. Which is correct?

Q66 Response: Use Hilti products only.

Q66. We have communications drawings TD-101, T-101 but no specifications other than common results. Please advise.

Q67 Response: The drawings are stand-alone, and the specifications define the remaining requirements.

Q67. Can you provide 01 01 10 IC if possible? There are notes about temporary barriers and level of infection control in drawings.

Q68 Response: The specifications section 01 01 10 IC is not included in this contract. It has been superseded by section 01 35 26 Safety Requirements.

Q68. Under general phasing notes, #11, shall remain operational until 5-1-2019. This leaves 5 months to complete the boiler aspect of work and shall be fully operational 10-1-2019. AMD 02, 01 00 00 - 12 Shows boilers fully operational and commissioning complete OCT 1, OCT 15, NOV 1. Please advise if the VA is stating that only commissioning can occur in the month of OCT 2019, but completed construction must occur by 10-1-2019. Are there are any other constraints on the project for other scopes of work such as ACM and demolition?

Q69 Response: The timeline in specifications section 010000, paragraph 1.6.G is correct.

Q69. Industrial cleaning of this facility can be a large aspect of the scope of work, especially with the scraping of deck illustrated in the drawings. Can you provide a statement of SOW responsibilities of the Prime; between construction clean and terminal clean and who provides Contractor vs. VA?

Q70 Response: Contractor’s questions does not cite a drawing or specification where the requirements are found. Contractors are responsible for cleaning as defined by contract requirements. Terminal cleaning requirements are not applicable to the boiler plant. Other requirements for abrasive, scraping, sanding, and other surface preparatory requirements in the contract documents apply.

Q70. Sheet MD101 Note 5 says demo and cap at main for B.O. pipe – does this require a shutdown since we are removing the isolation valve to the main line at this time?

Q71 Response: No, because the boiler oil supply is valved at each boiler location. No change to Drawings.

Q71. Sheet MD105 Note 6, Will there need to be a temporary cap in the ductwork until the new ductwork is installed per sheet M-107?

Q72 Response: No, just install the supply grille called out in note 22 on Sheet M-107. No change to Drawings.

Q72. Is Key Note 12 on sheet M-104 needed?

Q73 Response: Yes. See Drawing Revisions.

Q73. What of the RO system is still needed on Sheet M-110 Q74 Response: Amendment 001 deleted Sheet M-110.

Q74. Is there any new electrical for the RO system on sheet E-600?

Q75 Response: Contractor’s questions does not cite a drawing or specification where the requirements are found, and it is not clear where bidder is looking. Contractors are responsible for cleaning as defined by contract requirements. Terminal cleaning requirements are not applicable to the boiler plant. Other than cleaning, any abrasive, scraping, sanding, and other surface preparatory requirements in the contract documents apply.

Q75. Specification Sections 23 09 23 (Direct-Digital Control System for HVAC) and 23 09 11 (Instrumentation and Control for Boiler Plant) are both considered “Single (Sole) Sourced Items” in the bid documents. Is the bidding contractor expected to include the cost associated with both specification sections and that these scopes are not being subcontracted directly through the owner?

Q76 Response: Sole source requirements are still contractor requirements. VA will not separately contract for sole sourced work. No change to specifications.

Q76. Is this contractor still responsible to run the 6” HPS line shown from the existing 6” SPS main (column B/4) on Drawing M-102 over to Drawing M-104 (column F/2)?

Q77 Response: No. That work is now existing. See Drawing revision note that Keyed Notes 1 and 14 are deleted.

Q77. What elevation Is the existing SPS line shown on Drawing M-102 with a thick red line running north/south just to the east of column B?

Q78 Response: See revised Drawing M-102

Q78. Are we allowed to reuse the existing horizontal SPS piping shown on M-102 and only provide new elbows and vertical piping required to raise that line for boiler removal and install?

Q79 Response: No. All new piping. See revised Drawing M-102.

Q79. Detail 2 on M-503 shows a steam feed to the Condensate Surge Tank. Please confirm what this is for.

Q80 Response: There is no steam feeding the condensate storage tank. It is all condensate.

Q80. Detail 2 on M-503 is not consistent with Detail 4 on M-502. M-502 shows a make-up control valve and an emergency make-up valve on the DA, but Detail 2 on M-503 only shows the emergency make-up control valve.

Q81 Response: Both of these details are standard details from the VA that came directly from the VA website. The purpose of detail 2 on sheet M-503 must to illustrate a flow diagram between the condensate and boiler feedwater, whereas the other is a piping detail on the storage tank. Design to most conservative or most stringent, Detail 4 on M-502.

Q81. 23 50 11-9, 2.1.D.6 says to provide access platforms to the manways as required. Please let us know whether or not they are required. They are not shown on the plans.

Q82 Response: The specification requirement is to ensure that platforms allow access to manways. Platform (catwalk) design, locations, and layout are in the plans, but manways for new equipment might not align. If they do not, the specification requires either contractor to provide manway modification or platform modification. The “as required” element would not be triggered if contractor’s furnished equipment manways align properly with designed platforms. No change to specifications.

Q82. 23 51 00-5 and 6, 2.1 describes both factory built pre-fabricated stacks and field fabricated stacks. Which applies?

Q83 Response: Both requirements apply, depending on whether the contractor furnishes pre-fabricated or field-fabricated stacks. Contract allows contractor discretion.

Q83. 23 52 33-23, 2.4.D.3 – states that 30 ppm NOx is required when firing natural gas and low nitrogen fuel oil. 30 ppm is not achievable firing oil with a fuel bound nitrogen content of greater than 0.1% by weight.

Q84 Response: Annual boiler tuning has met requirements with current fuel for years. VA expects no issues with new boilers. No changes to specifications.

Q84. Please confirm if air compressors for air atomization should be included in our scope of supply. In one part of the specification it would indicate that compressors should be dedicated to the burner supplier while in other parts of the specs it indicates a cold plant air system is existing.

Q85 Response: Air compressors for air atomization are required for the new boilers. No change to specifications.

Q85. In Section 23 52 33, Item 1.4.A states the burner shall be refractory free while 2.1.F.11 refers to refractory front and rear walls. We have assumed Item 1.4.A governs and have included our standard design which does NOT include refractory walls. All walls are 100% water-cooled membrane walls to drastically reduce the required amount of refractory thus reducing maintenance costs and downtime.

Q86 Response: See Specification Revisions.

Q87. Is the equipment purchased for this project tax exempt?

Q87 Response: There are no tax exemptions.

4. SPECIFICATIONS:

1. Specification Section 010000 General Requirements: DELETE requirement that WHESCO provide new wiring, in paragraph 1.2.J.1.

2. Specification Section 232111 Paragraph 2.15 ADD the following in response to Questions 10 and 26.

a) Chemical Feed Piping:

2.1.1 Where connected to boilers: Type 316 stainless steel tubing.

2.1.2 Where connected to deaerator: ½” PEX 250-psi tubing, with PVC jacket. Omit PVC elbows.

b) Ball Valves: Reduced port permitted for bypass (throttling) service; full port required for all other services, one-fourth turn to open.

i. Type 501: Type 316 stainless steel body, ball and stem, rated for 150 psig at 365 degrees F, 600 psig at 200 degrees F; reinforced TFE seat, stem seal and thrust washer; end entry, threaded ends.

ii. Type 502: Steel body, rated for 150 psig at 365 degrees F, 250 psig at 250 degrees F, reinforced TFE seat, stem seal and thrust washer; end entry, threaded ends, UL-listed for natural or LP gas shut off service when used on those services.

iii. Type 503: Carbon steel body, steam service, 200 psig at 392 degrees F, stainless steel ball and stem, Polyfil seat, live-loaded or adjustable stem seal, threaded ends.

iv. Type 504: Carbon steel body, saturated steam service, rated for 150 psig, stainless steel ball and stem, Polyfil seat, live-loaded stem seal, ASME flanged ends.

3. Specifications Section 232111 Paragraph 2.15.B ADD the following in response to Question 27:

Chemical Feed Valves:

a. Ball Valves (2 inches and under): Type 501

b. Check Valves (2 inches and under): Type 406

c. Compressed Air Valves: Gate Valves (2 inches and under): Type 105

d. Ball Valves (2 inches and under): Type 502

RO piping systems Manual Valves:

a. Pump Throttle Valve: Type 316 stainless steel ball valve, socket welded.

b. Concentrate Throttle Valve, Recycle Throttle Valve: In-line needle style, stainless steel, rated for 2070 kPa (300 psig) minimum.

c. Inlet Isolation Valve, Product and Concentrate Check Valves: PVC with EPDM seats and seals.

d. Feedwater Sample Valve, Product Water Sample Valve: PVC plug valve with EPDM seats and seals.

e. High Pressure Sample Valve: Type 316 stainless steel plug valve.

f. Automatic Valves:

g. Automatic Inlet Shut Off Valve: Solenoid type, diaphragm actuated, normally closed, constructed of glass-filled Noryl thermoplastic.

h. Automatic Membrane Flush Valve: Provide for purging the membranes with fresh water upon machine shut down.

4. Specifications Section 010000, paragraph 1.7.A.ix and x are ADD as follows:

e. Quality Level – Additional details:

a. Architectural / Structural

i. Walls will be scanned and modeled.

ii. Doors will be scanned and modeled.

iii. Columns will be scanned and modeled.

iv. Beams will be scanned and modeled.

v. Floor/ceiling slabs will be scanned and modeled.

b. MEP

i. Piping of any size will be scanned and modeled. Appurtenances such as valves, unions, couplings, fittings, etc. will not be modeled.

ii. Conduit of any size will be scanned and modeled. Appurtenances such as valves, unions, couplings, fittings, etc. will not be modeled.

iii. HVAC – rigid and flex duct will be scanned and modeled.

iv. Misc. Equipment

v. Air handling equipment, electrical boxes etc. that are larger than 4 inches will be scanned and modeled with general mass objects that are sized to the point cloud data.

vi. Switch gear and similar equipment will be scanned and modeled with general mass objects that are sized to the point cloud data.

c. Insulation

i. If insulation is present on any of these elements, scan and model to the outside diameter or surface of that insulation.

d. Hangers, support brackets, etc.

i. Will be captured in the scans, but will not be specifically scanned for or modeled.

e. 3D Photo files: turn over with other deliverables

f. Graphical Level of Detail shall be LOD 350, floor to ceiling, all floors and exterior.

Amendment 001 deleted Specifications section 22 67 19.16 Reverse Osmosis System. However, following excerpts from section 22 67 19.16, paragraph 2.1, are added back, in response to Question 47, along with the requirement to submit product data:

H. Piping:

a. Low Pressure Feed, Reject and Recycle Piping 520 kPa (75 psig and under): ASTM D1785, Schedule 80 PVC, socket welded and flanged.

b. RO Product Tubing from Each Membrane Housing: ASTM D1785, Schedule 80 PVC, socket welded and flanged.

c. Low Pressure Control and Pressure Gage Tubing: Polyethylene.

d. High Pressure Reject and Recycle Piping 520 kPa (above 75 psig): ASTM A269/A269M, Type 304 Schedule 10 stainless steel with butt welded joints.

e. High Pressure Control and Pressure Gage Tubing: 6895 kPa (1000 psig) burst nylon.

f. Specification 010000 Paragraph 1.2.J.1 revised to DELETE the phrase “and new wiring” in response to Question 33.

5. Specifications Section 23 52 33, paragraph 2.1.F.11 is revised as follows, per Question 86 – Delete paragraph 11.

6. Specifications 00 01 10 Table of Contents revised as follows, per Question 53: DELETE DIVISION 07- THERMAL AND MOISTURE PROTECTION, 07 22 00 – roof and deck insulation, and 07 92 00 – Joint Sealants.

7. DRAWINGS (Attachment):

1. Drawing M-001: MODIFY Mechanical Equipment Notes, Note 7, second sentence, to read: IF THE CONTRACTOR PURCHASES EQUIPMENT FROM MANUFACTURER OTHER THAN THE SCHEDULED MANUFACTURER USED FOR THE BASE DESIGN, THE CONTRACTOR SHALL BE RESPONSIBLE FOR CHECKING ALL THE DIMENSIONS OF THE EQUIPMENT TO VERIFY THAT IT WILL FIT IN THE SPACE SHOWN ON THE DRAWINGS.

2. Drawing MD-102: Amendment 001 deleted Note 12. Note 12 to be UNDELETED, per Question 3 and Question 49. ADD Note 12: “REMOVE 20’ SECTION OF 1” RO SOFTENER PIPE FOR OVERHEAD CLEARANCE FOR INSTALLATION OF BOILERS”

3. Drawing M-104: Amendment 001 and 002 deleted Notes 2, 9, 10, and 12. Notes 2, 9, 10, 12 to be UNDELETED, ADD back to the plan sheet, per Questions 5, 51, and 73.

a. Note 2 - 3” RO Pipe. See M105 for continuation.

b. Note 9 – Install new shut-off valve in existing RO supply pipe at this location. Valve shall be closed when DA-2’/ ‘ST-2’ are operating and open when ‘DA-1’/ ‘ST-1’ are operating.

c. Note 10 – Make connection to existing 3” RO piping at this location.

d. Note 12 – Valve shall be open when ‘DA-2’/ ‘ST-2’ are operating and closed when ‘DA-1’/ ‘ST-1’ are operating.

4. Drawings M-603, M-504, and M-107 discrepancy, per Question 7: PRV is dual stage PRV. CHANGE note on M-603, M-405 and M-107 from single stage PRV to “2-stage PRV” Modify where called out as single stage.

5. Drawings M-603 per Question 8, CHANGE ‘1-1/2” LPS from PRV 102 to DA-2’ to ‘3” LPS from PRV 102 to DA-2’.

6. Drawings M-601, M-603, and M-501 discrepancy, per Question 9: MODIFY drawings to consistently call out tie in as shown on drawing M-501 photo 10, new connection point to be same as the 2” existing pipe.

7. Drawing M-603 discrepancy in ST-2 discharge piping, per Question 11: MODIFY drawing M-603 to show both instances as piped running into drains, no hose connections.

8. Drawing M-105 and M-102 discrepancy between location of piping to sample cooler, per Question 14: MODIFY drawings to show DA-2 goes from the M-105 sample cooler.

9. Drawing M-603 and M-502 conflict, per Question 17: CHANGE Drawing M-603 to match detail 3 on sheet M-502 with two makeup water valves and two meters.

10. Drawing M-603 and M-502 conflict, per Questions 18 and 22: CHANGE drawing M-603 to match M-502 with one makeup water valve from the CTPD system and one makeup water valve from the soft water system.

11. Drawing M-503 discrepancy, per Question 19: ADD note to M-503 detail 1 stating “FE 102 on TC-100 is the same device, the v-cone element for the gas meter.”

12. Drawing M-603, M-502, and M-105 conflict, per Question 22: CHANGE drawing M-603 to match M-502 with emergency water make-up connections per detail 3 on M-502.

13. Drawings M-102 clarification, per Question 24: Drawing M-102 revised to show connection points, elevations, and routing of steam line (attached).

14. Drawing A-101 clarification, per Question 54: DELETE key note #8 on drawing A-101.

15. Drawing E-600: DELETE number 12 line from MOTOR WIRING SCHEDULE.

16. Drawing M-700: MODIFY Water Tube Steam Boiler schedule Note 1, Boiler Feed Deaerator schedule Note 1, and Boiler Surge Tank schedule Note 1 to read “OTHER ACCEPTABLE MANUFACTURERS: BRAND NAME OR EQUAL”. Pump Schedule Note 1, Air Compressor schedule Note 1, Two Stage Steam Pressure Regulator Valve schedule Note 1, and Boiler Economizer Schedule Flue Gas/Feedwater Heat Exchangers Note 1 edited to read “NOT USED”

17. Drawing AD-321: MODIFY key note 1 to read “REMOVE AND REINSTALL EXISTING WALL MOUNTED PAPER TOWEL DISPENSER.” Key note 2 to read “REMOVE AND REINSTALL EXISTING WALL MOUNTED SOAP DISPENSER.”

End of Amendment A00004 See attached document: S02 - BID SCHEDULE - Amended for Brand Name or Equal.

See attached document: S06 - A00004 Drawing M-102 Amended.

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