140P2018R0026_AMD_4.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

AMENDMENT 00004

PDS

The subject amendment 00004 for the construction solicitation 140P2018R0026 to rehabilitate the Valley Forge National Historical Park Visitor Center, King of Prussia, PA is amended as follows: The questions and answers are on pages 2 - 5.

This is the last amendment for this solicitation.

NPS, DSC CONTRACTING SERVICES DIV

12795 W. ALAMEDA PKWY

P.O. BOX 25287

DENVER, CO 80225-0287

140P2018R0026

140P2018R0026

VAFO 211497

1 5

08/14/2018

140P2018R0026 AMENDMENT 4 DATED 8/14/18 PAGE 2

VALLEY FORGE NATIONAL HISTORICAL PARK

VAFO-211497, 244026, 248737, AND 248779

REVISIONS, ADDITIONS & CLARIFICATIONS

Specification Revisions

1. REPLACE - None

2. ADD - None

3. DELETE None

Construction Drawings Revisions

Drawing Number 464/141261 – RehabilitateVisitor Center For Energy Efficiency, Safety and ADA Access

No drawing revisions for this Amendment

Clarifications

Answers to other questions were included in Amendments 1 and 3.

Q32. 1. Spec 230523, 2.6 High Performance Ball Valves: The specifications calls for "high performance ball valves of the stainless stell top-entry body" B. Provide high performance ball valves of the stainless steel top-entry body type, having a straight-through full port flow passage. Design to permit disassembly without removing body from line. 2. Body to be 2-piece screwed end. A quote could not be attained for the denoted on the valve list:

H.P. Ball - DeZurik Fig. No. 551. DeZurik makes a V Port (VPB) control ball valves.

Please advise if we should use these valves or provide a model number of a different ball valve. Please advise if we can use a valve kit by NuTech with stainless steel trim and full port ball valves, see manufacture product list.

A32. V-port ball valves are acceptable. Provide specifications for NuTech as an alternate for design team approval.

Q33.What type glycol propylene or ethylene should we use?

A33. Propylene Glycol shall be used.

Q34. Section 230523 2.9 Valve List: Please provide a NIBCO Fig. No. for ball valves sizes 2" and smaller with sweat ends. 2.2 Please advise if TACO or B&G circuit setter will be acceptable for balancing and throttling.

A34. This is acceptable.

Q35. There is existing lighting (lightning?) protection on the two (2) towers of the visitor center at Valley Forge, the construction documents (drawings and specifications) do not include any details or scope in regards to removal, modification, or installation of any

140P2018R0026 AMENDMENT 4 DATED 8/14/18 PAGE 3

lighting (lightning?) protection system. Please review and advise what Lighting protection scope of work should be included.

A35. We have performed lightning protection risk assessment calculation; based on our calculation lightning protection system is recommended.

Q36. The Solar Panel Hot Water generator as shown on the documents, drawing P11, appears to be for a residential installation and the additional detail show mounting the unit in a vertical orientation. The roof where this is to be installed is a flat roof and no structure exist to mount this unit in a vertical orientation. Please review and advise as to how this unit is to be installed and mounted.

A36. The detail on P11 shows the case with 0 degrees roof pitch. Please refer to manufacturer requirements as to solar panel unit installation and mounting as well as to architectural detail 4/A3.2

Q39. Drawing EO, keynote #3 - Keynote #3 states “4” PVE”, please confirm this should read

“PVC”.

A39. Yes, it should be PVC.

Q46. Specification 233320 - Please clarify or confirm that per Specification 233320 (Duct Cleaning) all ductwork both new and existing systems shall be cleaned per specification therein.

(Our subcontractor reads this specification as the entire system) A46. The entire system shall be cleaned.

Q47. Specification Section 230593- 301 – C - Please clarify or confirm that per Specification Section 230593- 301 – C that the entire ductwork system both new and existing must be leak tested to specifications. (Not just a witnessed representative sampling) A47. The entire system shall be leak tested.

Q48. Mechanical and Plumbing Specifications - We have found spare parts listed for many items in our Mechanical and Plumbing Specifications with the exception of Fan Belts and Pump Seals are they required (One of our air handler vendors has supplied a quote for Belts as an add) A48. Bid per specification.

Q54. 01 50 00 Para. 2.3, E0 - The Materials and Performance Table in Specification Section 01 50 00 Paragraph 2.3 identifies a 60A panel for the Temporary Visitor Center. The Power Riser Diagram on Drawing E0 shows 100A and 120A panels for the units. Please clarify the required panel size for the Temporary Visitor Center modular units.

A54. 100A and 120A panels for the units per Drawing E0 is correct.

Q55. Section 238413 - Steam Humidifiers: Please advise if steam humidifiers should be installed. If required please provide steam humidifiers schedule, installation locations on the drawings and piping layout.

A55. There are no steam humidifiers on this project.

140P2018R0026 AMENDMENT 4 DATED 8/14/18 PAGE 4

Q56. Drawing M6 & M7: Please clarify a meaning for symbol CHW/1 in upper left corner. Is this indicate of the CHW riser?

A56. This is a riser tag. See legends and symbols sheet.

Q62. Section 220002 Plumbing Special Conditions, 3.1 Fees, C. references Contract Line Item No. 3-PMIS 248737. Please confirm that the costs for all Plumbing work for this project should be entered under Contract Line Item Number 1 Building Rehabilitation PMIS # 211497. Also, please confirm that the same holds true for all Fire Protection and HVAC work for this project.

A62. All Fire Protection, Plumbing and Mechanical work shall be part of PMIS #211497

Q63. Sections 21 08 00, 22 08 00 and 26 08 00 for Fire Protection, Plumbing and Electrical Systems Commissioning have been included in the Specifications for Divisions 21, 22 and 26. Is there a Section 23 08 00 Commissioning of HVAC Systems that should be issued for Division 23 HVAC? Please clarify A63. Commissioning of HVAC systems has been submitted as part of bid package.

Q64. Is cleaning of new duct systems required per Section 233320 Duct Cleaning if SMACNA Duct Cleanliness for New Construction Guidelines is implemented and adhered to throughout all phases of the construction process? Please advise.

A64. Yes. Cleaning of duct systems is required.

Q75. Drawing AL.6 Shows doors that are 2 hour and 3 hour fire rated. Are the walls that these doors are in also fire rated for the 2 hour and 3 hour? I do not see this called out.

A75. Yes. Partitions will require corresponding fire ratings.

Q76. Drawing AL.0 Calls out for a Fabric Awning, Is an aluminum canopy system with integral gutters and down spouts acceptable?

A76. All proposed substitutions should meet the design intent of the contract documents.

Q77. Drawing AL.5 Shows in the reflected ceiling plan tiles laying in in 2 different directions. Is having the tiles all run the same direction acceptable?

A77. Alternate ceiling grid can be proposed. Must meet design intent including coordination with lighting.

Q78. Section 01 50 00 – 4, 2.3 D Calls out 32”W x 60”H Bronze finish. Is 48” x 60” Vinyl Single Hung Acceptable?

A78. Substitutions are to be reviewed by COR and architect after contract award. Substitutions must meet requirements per construction documents.

Q79. Section 01 50 00 – 4, 2.3 D calls out for metal Roof is White EPDM .045 Acceptable?

A79. See response to #78 above.

140P2018R0026 AMENDMENT 4 DATED 8/14/18 PAGE 5

Q80. Section 01 50 00 – 4, 2.3 D calls out for 60 Amp Single Phase Panel 208/230V Is 150 Amp Single Phase 240 Volt Acceptable?

A80. See response to #78 above.

Q81. Section 01 50 00 – 4, 2.3 D calls out for through wall heat / cool. Is Wall hung HVAC units acceptable?

A81. See response to #78 above.

Q82. Section 01 50 00 – 4, 2.3. 1. a 1). ) calls out Walls: Manufacturer’s standard weatherproof assembly of solid panels, panels with window units, panels with doors and panels with self-contained HVAC units. Is manufacture standard 2x6 construction acceptable with wall hung HVAC units and doors?

A82. See response to #78 above.

Q83. Section 01 50 00 – 4, 2.3. 1. B 2) b) Theatre and Break Room south walls shall have full thickness mineral wool fiber batt insulation, Is manufacture standard Kraft-Faced Acoustical Fiber Glass Insulation acceptable?

A83. See response to #78 above.

Q84. Section 01 50 00 – 4, 2.3. 1. B 2) 4) Ceiling: Suspended ceiling, 2’ x 4’ exposed “T” grid with 2’ x 4’ fissured pattern acoustical panels. Is manufacture standard Ceiling: 2x4 T-Grid (acoustical) Donn X DX Tiles by Armstrong 2910 acceptable?

A84. See response to #78 above.