Amendment_6_-_47PC0319R0008.pdf

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:

(a) By completing items 8 and 15, and returning 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 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.

E. IMPORTANT: Contractor is not is required to sign this document and return copies to the issuing office.

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT 1. CONTRACT ID CODE

2. AMENDMENT/MODIFICATION NUMBER 3. EFFECTIVE DATE 4. REQUISITION/PURCHASE REQUISITION NUMBER 5. PROJECT NUMBER (If applicable)

7. ADMINISTERED BY (If other than Item 6) CODE

STANDARD FORM 30 (REV. 11/2016)

Prescribed by GSA FAR (48 CFR) 53.243

FACILITY CODE

9A. AMENDMENT OF SOLICITATION NUMBER

9B. DATED (SEE ITEM 11)

10A. MODIFICATION OF CONTRACT/ORDER NUMBER

10B. DATED (SEE ITEM 13)

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offers is extended. is not extended.

12. ACCOUNTING AND APPROPRIATION DATA (If required) copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;

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

IT MODIFIES THE CONTRACT/ORDER NUMBER AS DESCRIBED IN ITEM 14.

CHECK ONE A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE CONTRACT ORDER

NUMBER IN ITEM 10A.

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation data, 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)

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.

15C. DATE SIGNED

15A. NAME AND TITLE OF SIGNER (Type or print)

16C. DATE SIGNED

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

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

PAGE OF PAGES

6. ISSUED BY CODE

8. NAME AND ADDRESS OF CONTRACTOR (Number, street, county, State and ZIP Code) (X)

CODE

15B. CONTRACTOR/OFFEROR

(Signature of person authorized to sign)

16B. UNITED STATES OF AMERICA

(Signature of Contracting Officer)

Previous edition unusable

2PQC

Winnie Eng, Senior Contracting Officer

Please see attached.

General Services Administration Public Buildings Service One World Trade Center, 55th Floor New York, NY 10007

General Services Administration Public Buildings Service One World Trade Center, 55th Floor New York, NY 10007

47PC0319R0008

1 16

09/11/2019

08/01/2019

U.S. VIRGIN ISLANDS HURRICANE RECOVERY PROJECT

ST. CROIX GSA-PBS, REGION 2

SOLICITATION NO. 47PC0319R0008

AMENDMENT NO. 6

Amendment No. 6 is hereby issued to respond to the following RFI’s:

30. Clarify if the 2” electrical conduits to elevator status panel at security desk should be provided with pull wire only or if electrical wires are required. If so, please indicate quantity and sizes of the electrical wires to be considered (See Drawing 2d-E-101).

Response: These conduits are for the elevator control and status panels. The contractor must coordinate the number of wires required for this function with the elevator contractor. The elevator scope is based on a performance specification.

31. Clarify wish type of enclosure should be considered for outdoor wall mounted pull boxes which require weatherproof enclosure. Nema 4x or Nema 3R? (See Drawing 2d-E-200) Response: We recommend using a Nema 4X box made of fiberglass.

32. Provide datasheets of the existing standby emergency generator indicating dimensions, weight, height, etc. (For rigging purposes) Response: This information is not available. Verify with manufacturer.

33. Demolition notes #3,6 & 9 shown on Drawing 2d-ED-201 indicate that the electrical contractor is responsible for reprograming the fire alarm system to account for the removal of devices but quantities of devices to be removed and location of the existing panel are not shown in the drawings. Please provide the specific scope regarding the fire alarm system.

Response: Some of existing FA devices in the generator room can remain in place during construction. The generator status and indication relays must be moved to the new generator enclosure. However, the contractor shall provide proper protection of the existing FA devices during construction.

34. For Fire Alarm & Access Control Systems, please provide existing systems manufacturers, new system specifications and preferred vendors.

Response: For additional information refer to Electrical Specifications Section 283100- Automatic Voice Alarm System (fire Detection and Alarm). Fire Alarm Vendor name is MASE.

Contact is Nestor Carrasquillo (n.carrasquillo@masepr.com). Based on our field survey, the existing Fire Alarm System is a Notifier system.

35. Raceways and Boxes Section 260533-13 (3.2A.1) of the electrical specifications indicate that all conduit installed underground or embedded in concrete shall be PVC-coated RMC. We understand that PVC Schedule 40 could be used for this type of installation. Please clarify which type of conduit should be used for this type of conditions.

Response: The proposals should be based on plans and specs. If you want to issue an alternate for standard PVC conduit, the offer must be based on Schedule 80 conduit with rigid steel elbows.

This application will only be allowed for conduits embedded in concrete.

36. Provide manufacturer and model of the existing switchgear in order to provide new 400A circuit breaker for new water filtration/treatment plant as shown on Drawing 2i-E-100.

Response: These Switchboards are existing. In order to obtain the above-mentioned information, a survey is required by the contractor. Based on our survey, Main Distribution Switchboard manufacturer is manufactured Cutler Hammer (CH) and as far as we can tell the nameplate is as follows M.P. 200, Type FC4258, Series No. 4PF2485019 and the circuit breakers in this switchboard are the same manufacturer (CH). This information needs to be verified in the field.

37. Indicate if the emergency generator diesel tank shall be left completely filled up by the contractor

Response: Tanks shall be hydrostatically tested upon completion of the installation. Once tested, tanks shall be left full with fuel and ready to use.

38. Is there another special system (Data, Sound, Audio Visual, etc.) scope of work that it should be included in this proposal that is not shown on the electrical drawings?

Response: All scope for this project is clearly identified on the contract documents (drawings and specifications).

39. At the Preproposal Conference held on August 15, 2019, Mr. Victor Ruiz, PM took several pictures of chilled water pipe insulation, of the skylight and of several other areas. He said that the pictures would be included in an amendment. I have not seen any of the pictures in any of the amendments. Will the pictures be included in an amendment?

Response: No pictures were taken of the chilled water pipe insulation. The only piping pictures requested were of the water pump (Please see attached IMG_0112, IMG_0113 and IMG_0114).

Skylight and entrance could not be captured as this is a security checkpoint and was not allowed.

40. Option # 4 – (formally Option # 1) 50000 Gallon Fiberglass Single Wall Tank

Drawing 2i-C101 indicates the placement location of the 50000 Gallon Fiberglass Cistern Tank.

Drawing 2i-C201 Detail # 05 & 06 shows the Fiberglass Tank connected to bottom concrete slab which is approx. 14’-0” wide by 66’-0” long

The note at the attachment of the Hold Down Strap Notes # 10 Bar or Larger (Per Manufacture’s Recommendations.

The Fiberglass Tank Manufacture allows the Fiberglass Tank Hold Down to be made with Concrete Deadman In Lieu Of Concrete Bottom Slab. Please confirm the Concrete Deadman Acceptable to the manufacture can be used for this application Response: The manufacturer's deadman can be used if they meet the requirements of the site specific conditions.

41. Drawing 2i-C201 Detail # 07 – indicates (2) Dual Cal-Val Assemblies with each having a Solenoid Valve.

The Solenoid Valves do not indicate the Line Power Volt required. Please confirm if the Voltage required for the Solenoid Valves is to be 24 Volt or 120 Volt. Manufacture Recommendation is 120 Volt. Please confirm Voltage Requirement.

Response: The valve can be 120 V.

42. The Detail indicates a Fill Line from Building. When checking the Civil Drawings & Plumbing Drawings they do not indicate where the service piping from the Building is connected or rerouted to the CAL-VAL location. Please confirm Pipe Routing to be followed and Piping Materials to be used for this application.

Response: The water service line comes into the cistern at the northwest side of the cistern.

43. Drawing 2i-C101 – indicates a number of underground service piping with a “UW” designation.

Are any of the designated “UW” lines shown the makeup water line from the Local Water Utility Department “WAPA”. If so from what does the “UW” start and terminate?

Response: Yes. One of the lines that connect at the northwest side of the cistern is the WAPA line. It starts at the courthouse and terminates at the northwest side of the cistern.

44. Drawing 2i P-101 – Noted as Option # 1 upper left-hand corner of pages.

Inside of the Pump House Structure the Equipment is Pre-piped at the Factory. The Manufacture Factory Representatives for the Prefabricated Pump House are requesting all the necessary piping Sizes between and equipment and By-Pass Lines. Please confirm the pipe Sizes within the Pump House.

Response: System bypass is to be full size. Depth filter bypass to be 2". Softener bypass to be 2" Chlorinator bypass to be 1.5".

45. The Line noted From Cistern Transfer Pump notes coordination connection with Civil Drawings.

When looking at Drawings 2i C101 & 2i C201 we do not find where the necessary continuation information is shown on the Civil Drawings. Please clarify the necessary pipe routing and connection point.

In the Prefabricated Pump House note calls for a 1500 Gallon Domestic Water Storage Tank (Highland Tank Model HIGHDRO-1500). Please confirm the requirements for the Highland HIGHDRO-1500 Tank. Is the unit to have any special coating, comply with NSF 61 requirements, meet ASME Standards or will be required to be ASME Stamped.

Response: Plan C2i-C101 shows two water lines at the treatment plant, one coming from the cistern to the treatment plant and one from the treatment plant to the courthouse. Highland Tank HighDro-1500(HT1128) to comply with NSF 61 requirements. Tank is not required to be ASME stamped.

46. The written specifications provided have a Section 226619.16 noting RO Equipment & Piping.

Per the Civil & Plumbing Drawings we do not find where New RO Equipment is to be provided to the project.

Response: RO System is not required for this project.

47. Drawing 2i P-101 – Water Filtration Existing Conditions indicates the existing RO Water

Filtration System to be removed. Please confirm RO Equipment & Piping is not required for this project.

Response: Existing RO System is not operational and can be removed.

48. Drawing 2i P-101 – indicates Domestic Water Piping Underground. Based on the Material Piping Matrix we need to confirm if this piping is considered Domestic Water Service or Buried Cold Water so the correct material type for this application can be figured. Please advise.

Response: This piping is considered buried cold water.

49. Drawing 2i P-101 – indicated GW Service Piping – Drawing P-200 is the Plumbing Material Schedule. In review of the Material Matrix GW Service Piping is not indicated. Please provide the type of material to be provided for the “GW” Piping for this application.

Response: Grey Water "GW" is to follow the scheduled requirements for pump discharge piping.

50. Drawing 2h –M-101 – Note # 2 states – All Chilled Water Piping within existing Mechanical Removes Shall Be Stripped or existing Insulation and Replaced with New., Per the Specification in Note # 1.

Please confirm if the Chilled Water Supply & Return Insulation is to be removed and replaced in only Mechanical Rooms and Upper Areas where piping is shown or if the entire Chilled Water System Supply & Return Insulation needs to be removed and replaced on the entire system throughout the building. If the entire system is required to receive new insulation, please provide the necessary drawings showing existing Chilled Water Supply & Return Pipe Routing so quantities can be figured.

Response: Per Note No. 2, ALL chilled water piping shall be stripped of existing insulation and replaced with new. Existing piping layout was shown based on the most current design drawings available. None of the drawings received represent the full extent of piping within the machine rooms, as some alternations have been made since the CHW system was initially installed.

Provisions are to be assumed for extent of piping within these respective rooms.

51. Drawing 2g-M-102 indicates Rupture Basin Leak Detection to Alarm at BMS and Shut Down Transfer Pumps in 2 locations.

and the second location of the Pump Skid Leak Detector. This location also calls for this Leak Detector to wire alarm at the Fuel Oil Control System also.

Is the Fuel Oil Alarm System existing or do we need to provide an additional New F.O. Control System for this New Equipment?

Response: There is an existing fuel oil alarm system that ties back to the BMS system. All new sensing equipment associated with the fuel oil system shall be integrated with the BMS.

52. As required, we are to tie the F.O. Alarm Signals to the BMS System. Spec Section 230900 2.1 Acceptable Manufactures notes the BMS System is to be by Schneider Electric – EcoStruxure. As Schneider Electric is the name of the equipment manufacture, please advise as to who the representing firm is now support this facility for the Owner, so the necessary tie-ins for the F.O.

Alarms can be connected to the existing BMS System. Please provide Company Name, Contact Representative Name, Phone Number and Email Address.

Response: BMS service provider for the Almeric L Christian Federal Building is a company named MASE. Contact person is Nestor Carrasquillo. His email is n.carrasquillo@masepr.com

53. RO Water Equipment Spec Section 226619.16 – specifies an air compressor an accessory. Part

2.2 Treated Water System is also provided. Per review Part 2.2 looks as it applies only to a water system Please confirm if these specifications are complete as provided or require additional information necessary for the project Response: Follow the schedule for required RO equipment.

54. Specification refers to RO and RO Pretreatment (Turbidity, Softener, Cartridge Filter). We do not find any Post RO Equipment requirement.

Please provide and addition Post RO Equipment requirements necessary for the project.

Response: Follow the schedule for required RO equipment.

55. The project is noted to be a LEED Project with requirements to obtain LEED GOLD. Due to the location of the project and the Specified Allowed Manufactures some of the required LEED Certification Goals may not be able to be meet. Please confirm these requirements can be waived for the propose of this project.

a. Use of locally manufactured materials

b. Manufacturing location within 500 miles of job site

c. Any substitutions or changes that compromise the Green Building Requirements shall not be allowed Response: The Government can and will evaluate each waiver request on a case by case basis.

Each request will need to be submitted in writing for Government evaluation.

56. The Water Filter Manufacture has an item which needs clarification.

There is a conflict between the Water Softener Schedule and the Written Specification 223100 Page 7- 2.5 - C The Water Softener per the Schedule is called out to be steel tank 150,000 grain Culligan Unit.

The Written Specification References a 24” x 72” Tank.

The Specification notes 3 cu ft. of Resin which would be a 90 Please confirm the number of Resin Tanks which will be required.

Response: Follow the schedule for required water softener equipment.

57. Window Type: W08, W09, W10, W11, W12, W13, W14 and W10B All above windows have an arch top. None of the specified blast product was test with an arch.

Please advise.

Same above windows may have an issue during the bending process due the fact this is thermal product, Can a non-thermal product can be used for arches windows. Please advise.

Response: The project specifications do not require physical testing of the window assemblies for validation of blast performance requirements. The window assemblies shall be evaluated analytically by a registered Professional Engineer for conformance with all blast performance criteria. A non-thermal product may be used if required as long as it meets the specified performance requirements. However, the thermal product is recommended.

58. Window Types: W9, W10, W11, W12 and W13.

All above windows exceeded the maximum test sizes for model NX3800 Maximum test sizes: 50 1/2"" x 72"". Please advise.

Response: Per the contract documents, window types W9, W10, W11, W12, and W13 are mulled windows with panes not exceeding 50 ½” x 72”. Refer to 2e-A201 and 2e-A201a.

59. Doors: All doors call for hardware No.1 which contain electric strikes and card readers, None of the specified hurricane blast product was tested with this hardware. Can electric panic be provided. Please advise.

Response: Doors are not subject to blast requirements. Mullions supporting window units and doors shall be designed with the same level of blast resistance as adjacent windows.

60. Windows Type: W14 and W10

Above windows exceeded the maximum test sizes for the specified product NX3100 Casement window, Maximum tested product 38 3/8"" x 64 5/8"". Please advise.

Response: The size of the new windows has to match the existing openings.

61. Glass: Specified glass call for 3/8" Thk outer fully temp with 1/2" argon filled cavity and 9/16" Thk laminated. Glass test with product have 1/4" Thk outer fully temp with 1/2" air space no argon and 9/16 Thk laminated, Can the tested glass will be enough versus specified and Solar Ban product can be used versus argon fill as long as it complied with the U-Value and SGC requirements. Please advise.

Response: By increasing the exterior lite, the performance of the glazing is increased and should not impact previously tested assembly (stronger build-up). Air space may be non-argon as long as it meets the specified U-value and SGC requirements.

62. Specification section 260573 calls for a OVERCURRENT PROTECTIVE DEVICE COORDINATION, SHORT CIRCUIT AND ARC FLASH ANALYSIS study for the entire facility. This is not mentioned in the construction drawings nor is there a one line available of the existing electrical system to be able to assess the scope associated with this task. Please advise if this study is required as part of the bid.

Response: As per electrical specification, section 260573, paragraph 2.4.C, "this contractor shall obtain existing equipment data via documentation and survey to satisfy the analyses requirements. Obtain all documentation from CM/GC". In addition, the successful offeror can request the existing as-built drawings prepared by Schneider Electric in 2014 from GSA.

63. Specification section 323119.53 calls for connection of the fence grounding to the Lightning Protection System. Construction drawings do not indicate whether the building has an existing LPS or the point of connection to the ground system. Please advise if this part is applicable to the requirements for fence grounding.

Response: This part is not applicable to the requirements of the fence grounding.

64. Note 2 on sheet 2g-M-101 does not give specifications for the new fuel pump. Are there specifications, and should this pump be provided as part of the scope?

Response: Note No. 1 on drawing 2g-M-101 specifies the new fuel pump. Spec section 231000_Facility Fuel Systems provides more detail to the pump requirements.

65. What is the material and specifications for the new 1” underground fuel oil piping?

Response: Spec section 232113_Piping identifies the material and specification of the new underground fuel oil piping.

66. Mechanical drawings specify replacement of the existing chilled water piping insulation. Are there quantities (linear feet) of existing piping to have insulation replaced?

Response: Refer to piping layout drawings (which are to scale) for linear length of the existing piping to have insulation replaced.

67. Note on drawing 2f-C101 states: “Remove approximately 1,800 LF (of) existing chain link fence and associated foundation as indicated and around the perimeter of the PV Solar farm. Install security fence.” Please confirm that this 1,800 LF is around the perimeter of the PV Solar Farm only. Also confirm that the chain link fence around the buildings and parking is also to be removed and replaced with security fence.

Response: Chain link fence removal and replacement with security fence will be as indicated on 2F-C101 which includes around the perimeter of the PV farm, the buildings and the parking.

68. Fire Service: What is the scope of the fire service work for the elevator modernization? At a minimum, there should be new signal wires from the relay modules for primary recall, alternate recall and fire hat. Are new relay modules required for any of these functions? The electrical drawings show shunt trip circuit breakers feeding the elevators. Are there currently shunt trip power monitoring modules or do they need to be added? Was each sprinkler head in the elevator spaces (machine rooms and hoistways) verified to have a heat detector within 24” to initiate a shunt trip?

Response: Existing conditions to remain. As for the question concerning the “fire hat” will be illuminated by the elevator controller either by activating fire recall via the key in the hallway of a signal from fire command/alarm system.

69. Machine Room Air Conditioning: Is the elevator machine room air conditioning to be retained in each machine room? If not, request direction on providing required air conditioning (modification to existing building chill water air conditioning system or new mini split air conditioners).

Response: Yes, elevator machine room air conditioning is to remain.

70. Elevator Electrical: The elevator electrical drawing does not address the elevator cab light circuits, elevator machine room and pit lighting or elevator machine room and pit outlets. Has the machine room and pit lighting been assessed for adequacy? If not, please provide direction on replacement. Please provide direction on the signal wires required from the ATS to the elevator machine rooms.

Response: Elevator Cab Modernization is not in this scope of work. The existing to remain.

71. Please, clarify if it is allowed to insert sheet piling in the parking area for the cistern.

Response: An appropriate Support of Excavation system or properly sloped excavation must be implemented, in accordance with OSHA requirements. SOE drawings and calculations should be submitted for review.

72. Please, we need to know if GSA intent is to replace existing window with same size new windows.

Response: Yes.

73. On DWG 2e-A201 elevation 0 – shows the removal and replacement of new GB wall around windows (1’-4” above window and 1’-7” below window), does this applies to all windows replacement in the building?

Response: There will be removal and replacement of GB walls and finishes at all exterior windows. But it is not limited to (1’-4” above window and 1’-7” below window).

74. Please clarify if a leak detection system is required for the diesel pipe. If yes, please provide specifications.

Response: Refer to spec section 231000_Facility Fuel Systems for leak detection system specification.

75. Please clarify if the underground diesel pipe is double wall. If yes, please provide specifications.

Response: Refer to spec section 232113_Piping for underground diesel pipe specification. Pipe shall be seamless black steel within a 3/8 inch thick watertight fiberglass outer casing. Also refer to Note No. 2 on drawing 2g-M-101 for more information.

76. Please clarify if the owner will provide water to fill the new water tank.

Response: Cistern can be filled with storm water or public water as shown on plans.

77. Please clarify if it is necessary to disinfect drinking water inside the tank and if it will be by the contractor.

Response: The tank should be disinfected prior to turnover at the completion of construction.

78. "Electrical Plan 2d-E-101 - Electric for Elevator Modernization.

The feeds for the EMR 105 & 151 to be replaced with new conduit and wire. Where do these existing feeds originate?"

Response: Existing elevators are fed from existing Main Switchgear, located in the Switchgear room. The Main Switchgear room location can be found on drawing 2g-E-201.

79. Manufacturer’s specs used for basis of design call for thermally broken frames. That is not something really used in the islands. Are non-thermally broken products that meets the thermal, hurricane and blast performance requirements acceptable?

Response: Non-thermally broken product is acceptable as long as it meets the specified performance requirements. However, the specified thermally broken product shall be used if possible.

80. Please, clarify the material for the doors leaf and frames.

Response: For Metal and Glass doors see Spec. No.084113. For Wood doors see Spec. No.

083473. Please be aware that the frames are to remain for the courts and other offices in scope No. 2j.

81. Please, clarify the wall finish type in in DWG 2e-A201 detail 6.

Response: The existing wall finish is ceramic tile and the new wall finish will be ceramic tile to match existing. Please see 2e Window Room Schedule, sheet2e-A305.

82. DWG. 2e-A201a detail WS01, WS02 y WS1a, mentioned Wood base and Wood “nose”, but does not identify type of wood. Refer to attached drawings. Please clarify.

Response: Grade: Premium. Species: Birch Finish: OPAQUE FINISH to match door frames Fire- Retardant-Treated wood.

83. Our fencing supplier does not manufacture the gate specified, which does not match the fence surrounding it. Please confirm if we can provide a similar to the one specified as an alternative so that the fence and gate match.

Response: Gate should be from same manufacturer. If GC cannot procure the gate from the same fence manufacturer, then it can propose a similar gate that meets all specifications for approval by Government. It should not be assumed the Government will approve a different gate.

84. On DWG. 2e-A104, 4th floor, there are 10 new windows located at a wall that does not have an elevation to see if it has existing windows, please confirm if we should consider to do new openings for those windows.

Response: No, there are all existing openings.

85. We are encountering problems in getting quotes for the skylight due to specifications requirements, since testing has not been performed for 180mph winds and the Dynamic testing for the Blast Resistance.

Please communicate to the designer to explore other possible options.

Response: In regards to conformance with blast performance requirements, physical testing of the assembly is not required. Conformance with blast criteria, including determination if any internal steel reinforcement of the mullions is needed, requires analytical analysis by the contractor’s delegated engineer for the project-specified blast pressures. Refer to the project specifications for additional information.

In regards to conformance with project wind speed criteria, we note the following:

1) Testing is required for demonstrating conformance with hurricane impact requirements, but is not required for demonstrating conformance with wind pressures. Verification of the window assemblies to meet the required design wind pressures can be demonstrated analytically and does not require physical testing provided that the window assemblies are smaller or equal in size and are equal or stronger than the assembly that was tested for hurricane impact resistance. If the mullions need to be reinforced with steel bars to meet the blast performance criteria, this will also help with meeting the wind pressure criteria.

2) The design wind speeds and wind pressures listed on the contract documents are ultimate values based on ASCE 7-16 and are not allowable values based on earlier editions of the code.

86. Please confirm that the selected General Contractor and Subcontractors will need to pay 5% Gross Receipts Tax to the Virgin Islands Government.

Response: The contract price shall include all applicable taxes. Please see FAR 52.229-3, GSAR 552.229-70 and Basis of Pricing on Page 7 of the Draft GC Agreement.

The date and time for receipt of proposals remains unchanged.

END OF AMENDMENT NO. 6