180702_Set_2_Amendment_0006_narrative.pdf

WRNMMC P114 Medical Center eProject #1171746

Addition / Alteration – Set #2 AMENDMENT 0006

June 28, 2018

WALTER REED NATIONAL MILITARY MEDICAL CENTER (WRNMMC)

P114 MEDICAL CENTER ADDITION / ALTERATION – SET #2 Contract #N62470-09-D-9044

AMENDMENT 0006

INTRODUCTION SHEET

The following Amendment #0006 to the WRNMMC P114 – Set #2 documents has been prepared by HDR

Architecture, Inc. (DOR) and has been issued by NAVFAC Washington (Owner). This Amendment represents changes to the original Set #2 documents dated February 22, 2018 and take precedence over the original documents. This Amendment includes only the documents that have been changed and are grouped into Drawings, Specifications and Supporting Documentation. The revised documents are enclosed and are marked with this Amendment number and date.

1.0 DRAWINGS

1. A-346 – BUILDING SECTIONS – PHASE 2 BLDG C: Delete drawing A-346– BUILDING SECTIONS –

PHASE 2 BLDG C and replace with enclosed A-346– BUILDING SECTIONS – PHASE 2 BLDG C identified in the revision block as Amendment 0006 dated June 28, 2018.

A-346 was revised to show the FSMR-1 material callout in response to pre-bid RFIs.

2. PP-10B-G3 – BASEMENT DOMESTIC WATER PLAN – AREA G3: Delete drawing PP-10B-G3–

BASEMENT DOMESTIC WATER PLAN – AREA G3 and replace with enclosed PP-10B-G3– BASEMENT

DOMESTIC WATER PLAN – AREA G3 identified in the revision block as Amendment No. 6 dated

June 28, 2018.

PP-10B-G3 has been revised for revised routing of copper/silver ionization injection system loop piping. Loop piping connections are revised to be connected downstream of the 6” cold water redundant line from Bldg 9 where the redundant line connects to the Bldg C 8” domestic water main.

3. PP-10B-G4 – BASEMENT DOMESTIC WATER PLAN – AREA G4: Delete drawing PP-10B-G4 –

BASEMENT DOMESTIC WATER PLAN – AREA G4 and replace with enclosed PP-10B-G4 –

BASEMENT DOMESTIC WATER PLAN – AREA G4 identified in the revision block as Amendment No.

6 dated June 28, 2018.

PP-10B-G4 has been revised for revised routing of copper/silver ionization injection system loop piping. Loop piping connections are revised to be connected downstream of the 6” cold water redundant line from Bldg 9 where the redundant line connects to the Bldg C 8” domestic water main.

4. PP-607 – DOMESTIC WATER RISER DIAGRAMS – BLDG C: Delete drawing PP-607– DOMESTIC

WATER RISER DIAGRAMS – BLDG C and replace with enclosed PP-607– DOMESTIC WATER RISER

DIAGRAMS – BLDG C identified in the revision block as Amendment No. 6 dated June 28, 2018.

PP-607 has been revised for revised routing of copper/silver ionization injection system loop piping and relocation of domestic water branch connections.

5. PP-608 – DOMESTIC WATER RISER DIAGRAMS – BLDG C: Delete drawing PP-608– DOMESTIC

WATER RISER DIAGRAMS – BLDG C and replace with enclosed PP-608– DOMESTIC WATER RISER

DIAGRAMS – BLDG C identified in the revision block as Amendment No. 6 dated June 28, 2018.

PP-608 has been revised for revised routing of copper/silver ionization injection system loop system.

6. PP-702 – PLUMBING SCHEDULES – BLDG C: Delete drawing PP-702– PLUMBING SCHEDULES –

BLDG C and replace with enclosed PP-702– PLUMBING SCHEDULES – BLDG C identified in the revision block as Amendment No. 6 dated June 28, 2018.

PP-702 has been revised to show revised data in the PUMP SCHEDULE for PP-3A and PP-

3B .

7. M-711 – BAS – HYDRONIC CONTROL DIAGRAM SHEET 2 – BLDG C: Delete drawing M-711– BAS –

HYDRONIC CONTROL DIAGRAM SHEET 2 – BLDG C and replace with enclosed M-711– BAS –

HYDRONIC CONTROL DIAGRAM SHEET 2 – BLDG C identified in the revision block as Amendment

0006 dated June 28, 2018.

M-711 has been revised to add control diagram for pumps PP-3A and PP-3B.

8. M-711A – BAS – HYDRONIC SYSTEMS SEQUENCE OF OPERATIONS SHEET 2 – BLDG C: Delete drawing M-711– BAS – HYDRONIC SYSTEMS SEQUENCE OF OPERATIONS SHEET 2 – BLDG C and replace with enclosed M-711– BAS – HYDRONIC SYSTEMS SEQUENCE OF OPERATIONS SHEET 2 –

BLDG C identified in the revision block as Amendment 0006 dated June 28, 2018.

M-711 has been revised to add SEQUENCE OF OPERATIONS for pumps PP-3A and PP-3B.

9. EP-10B-G4 – ELECTRICAL - BASEMENT POWER PLAN - AREA G4 - PHASE 1: Delete drawing EP-

10B-G4– ELECTRICAL - BASEMENT POWER PLAN - AREA G4 - PHASE 1 and replace with enclosed

EP-10B-G4– ELECTRICAL - BASEMENT POWER PLAN - AREA G4 - PHASE 1 identified in the revision block as Amendment 0006 dated June 28, 2018.

EP-10B-G4 has been revised to provide power for pumps PP-3A and PP-3B, and relocation of CS-1.

10. EP-710.01 – ELECTRICAL- PANEL SCHEDULE - PHASE 1: Delete drawing EP-710.01 – ELECTRICAL -

PANEL SCHEDULE - PHASE 1 and replace with enclosed EP-710.01 – ELECTRICAL - PANEL

SCHEDULE - PHASE 1 identified in the revision block as Amendment 0006 dated June 28, 2018.

EP-710.01 has been revised for revisions to panels OD11C and OD31C.

2.0 SPECIFICATION

2.1-Specs – Volumes 1 of 3 and 2 of 3 and 3 of 3

2.1.1 Table of Contents: Delete Table of Contents and replaced with enclosed Table of Contents, identified as Amendment No 6 dated June 28, 2018. Revisions were made for additional sections issued in Amendment No 6.

2.1.2 Table of Contents – Appendices: Delete Table of Contents to Specification Appendices and replaced with enclosed Table of Contents to Specification Appendices, identified as Amendment

No 6 dated June 28, 2018. Revisions were made to remove Appendices B1, B2, B3, and B4.

2.1.3 Section 00 22 13.00 20: Add section 00 22 13.00 20 identified as Amendment No 6 dated

June 28, 2018.

2.1.4 Section 01 26 13: Delete 01 26 13 and replace with enclosed 01 26 13, identified as

Amendment No 6 dated June 28, 2018. Revisions were made to RFI submittal format and processes.

2.1.5 Section 01 31 23.13 20: Add section 01 31 23.13 20 20 identified as Amendment No 6 dated

June 28, 2018.

2.1.6 Section 01 33 00: Delete section 01 33 00 and replace with enclosed 01 33 00, identified as

Amendment No 6 dated June 28, 2018. Revisions were made to submittal processes and requirements.

2.1.7 Section 01 78 30.00 23: Delete section 01 78 30.00 23 and replace with enclosed 01 78 23.00

23 identified as Amendment No 6 dated June 28, 2018. Revisions were made to the appendix.

2.1.8 Section 11 74 00: Delete section 11 74 00 and replace with enclosed 11 74 00 identified as

Amendment No 6 dated June 28, 2018. Revisions were made for utilities coordination of equipment covered in section.

2.1.9 Section 12 31 00: Delete section 12 31 00 and replace with enclosed 12 31 00 identified as

Amendment No 6 dated June 28, 2018. Revisions were made throughout.

2.1.10 Section 14 21 00.00 20: Delete section 14 21 00.00 20 and replace with enclosed 14 21

00.00 20 identified as Amendment No 6 dated June 28, 2018. Revisions were made throughout.

2.1.11 Section 14 24 00: Delete section 14 24 00 and replace with enclosed 14 24 00 identified as

Amendment No 6 dated June 28, 2018. Revisions were made throughout.

2.1.12 Section 23 05 48.00 40: Add section 23 05 48.00 40 identified as Amendment No 6 dated

June 28, 2018.

2.1.13 Section 26 11 13.00 23: Delete section 26 11 13.00 23 and replace with enclosed 26 11

13.00 23 identified as Amendment No 6 dated June 28, 2018. Revisions were made throughout.

3.0 SUPPORTING DOCUMENTATION

None