RFP_Q A_dated_11_20_2012.pdf

Amendment No. 2 to Solicitation GS-11P-12-MK-C-0055 11/20/2012

Potomac Annex Complex

Building 1 Renovation

Questions Concerning Specification Sections

1) Please provide the following specifications sections that are noted on the drawings, but are not part of the Bid Documents that were provided.

ANSWER:

**The below specification are found in Volume 2 of Contract Specifications.

230800 Commissioning: pg. 223-227 232300 Refrigeration Piping: pg. 229-241 233300 Air Duct Accessories: pg. 257-268 237433 Dedicated Outdoor Air Units: pg. 285-300 238126 Split Systems AC: pg. 301-307 238239 Cabinet Unit Heaters: pg. 321-327

Section 230900 Instrumentation and Control for HVAC is not applicable for this project.

2) Specification section 264113 Ground Enhancing Material, as called out on drawing E-131; is missing from specifications. Please provide spec section 264113.

ANSWER: The chemical-enhanced grounding electrodes are specified in 260526-2.5.

3) Please provide the roof specifications.

ANSWER: There is no roof replacement in the scope of work. Patching and repairing in general is covered in Division 1.

4) Drawing A705 states to reference the specifications for CS-1. Please provide specification and product selection for CS-1.

ANSWER: Please refer to section 099600 High Performance Coatings included in the RFP

Questions Concerning Drawings

5) Please advise what note #36 on drawing A-114 refers to as it is shown, but no description is provided.

ANSWER: Keynote is actually note 35 to patch and repair. This is corrected in Amendment 01.

6) M-202 Keynote is graphically added to refrigerant lines serving MAU-1. Please clarify which keynote this is referring to.

ANSWER: This should refer Keynote 5. Keynote 2 should be included as well.

7) Drawing P-110 between columns 4-5 there is a note that shows elevated concrete slab and concrete

Amendment No. 2 to Solicitation GS-11P-12-MK-C-0055 11/20/2012

SOG. Is there a crawl space below the elevated slab? If so, is it accessible?

ANSWER: There is a crawl space below the elevated basement slab. It is accessible via the access door on the south end of the building.

8) On the telecom riser drawing page T-501 there are notes next to the following diagrams: LAN 3 riser

(1) Cat6 to WA’s, LAN 2 riser 2 Strand Fiber MM Optical Fiber TO WA’s, LAN 1 riser (1) CAT6 to WA’s , Voice/CATV Riser Diagram (2) CAT6 to Voice WA’s. Are we to terminate in the riser closet or just indicating that all station cables except for the coaxial are to go from the basement equipment racks thru the risers to the termination jacks?

ANSWER: All station cable except for the coaxial cables shall be home run from the basement equipment racks thru the riser closets to the termination jacks.

9) On drawing page T-501 drawing note #7 calls for the contractor to identify and trace communication and power cables for rooftop antennas. How many antennas are on the roof that require tracing?

ANSWER: There are two antennas on the roof.

10) The telecom riser diagram calls for (2) 12 strand SWM fibers to run from B-104 to the steam hut thru manholes 1, 2, 3, and 4 and new duct bank. Please identify the location/number of manholes shown on the civil plans.

ANSWER: Provide (2) 12 strand SM optical fiber from room 1-B04 thru existing manhole MH#1 shown on CMPD drawing C-301 and existing manholes MH#2, MH#3 & MH#4 to existing steam hut labeled “Steam Distribution and Pressure Reducing Station” shown on CMPD drawing C-303.

11) The structural drawings are not very clear on the 2x10’s to be sistered to existing. Do all of the existing 2x10 joist on the 1st, 2nd and third floors have new 2x10’s sistered to them????

ANSWER: The sistered joists are between grids 9 & 10 on the north end of the building. The extent of sistered joists on the third floor extends down beside the elevator. The actual new pieces to be sistered are shown at each joist on the drawings.

12) What are the locations for the extinguishers? The spec says as shown on the plans but none are shown.

ANSWER: There will be ABC-type fire extinguishers in all of the utility rooms: 1-B04, 1-B05, 1-B06, 1-

B07A, 1-B10, 1-B23B, 1-B27, 1-314; and in the two kitchen areas: 1-B09, 1-305. The extinguishers will be located inside the rooms near the doors.

13) Details G and J on drawing S-301 indicates new foundation walls beneath existing concrete slab.

Please provide elevation for bottom of new wall.

ANSWER: For Detail G refer to Detail F/S-301 for bottom of wall details. For Detail J refer to Detail

H/S-301 for bottom of wall details. Both provide assumed depth for bid purposes that shall be confirmed by the contractor prior to construction of the walls.

Amendment No. 2 to Solicitation GS-11P-12-MK-C-0055 11/20/2012

Questions Concerning Product

14) Please provide the manufacturer and product information for the back painted glass panels (GP-1).

ANSWER: Material is deleted in Amendment 01.

15) Is there currently a BAS vendor that is to be used onsite?

ANSWER: There is no building automation system for the building, thus no vendor is indicated.

16) Note on detail 3/A503 that references framing systems for the back-painted glass and notes “see specifications for detail.” Can the specification for the framing system be provided?

ANSWER: Material is deleted in Amendment 01

17) The door schedule does not show which door types are wood and which are steel. Please advise.

ANSWER: The following new door numbers are hollow metal doors and located at exit stairs, main utility rooms and secondary exit only exterior doors at service areas, which include numbers :

1B08A, 1B07A, 1B23B, 1BST02, 1B27, 1B04, 1B05, 1B06, 1B10, 1B08B, 1100B, 1100C, 12ST01, 12ST02, 13ST01, 13ST02. All other doors are wood.

Questions Concerning Definitions

18) What is REFNET? (example shown on E-114)

ANSWER: They are part of the VRV branch kits. Refer to mechanical drawings and specifications.

19) On drawing A-704 the finish schedule for B-102 in the remarks section says see package B. What is package B?

ANSWER: Package B is not in contract and work will be done by others. This is an informational note on the schedule.

Questions Concerning Scope

Plumbing/Water

20) Drawing P-701 Plumbing schedule calls for WC-1 to be a floor mounted water closet with a bottom outlet. However, at the end of the remarks for this item it states to provide a carrier with feet

Amendment No. 2 to Solicitation GS-11P-12-MK-C-0055 11/20/2012 secured to the floor. Please advise if we are to provide a floor mounted water closet or a wall carrier mounted water closet.

ANSWER: There is no carrier required. Fixtures are floor mounted.

Electrical

21) The electrical legend does not indicate if (PT) poke thru require any CAT6 or fiber. Are any communication cables needed in the poke thru? If so how many and what type?

ANSWER: Electrical drawings only indicate power at the poke thru locations. Telecom drawings indicate the communication wiring requirements. Refer to telecom drawing T-001 for additional information. No communications cable are required.

Hazmat

22) Do all hazmat materials need to be abated (such as lead paint) or just that which is shown on the demolition drawings?

ANSWER: All hazmat abatement work that is required to be abated is designated on the hazmat and demolition contract drawings. All hazmat abatement work shall be performed in accordance with the hazmat abatement specifications. There are hidden areas where hazmat is believed to be existing (ie: fan coil piping) to which the demolition and hazmat drawings itemize a quantification which is to be abated in accordance with contract hazmat abatement requirements.

Systems

23) Please advise what work is required as stated in the summary section 1.2 for security systems, telephone systems, IT systems, systems furniture, and special office space construction. The specifications call for this work to be done under other contracts, however; the construction documents include the specifications for these sections and the work is shown on the plans.

ANSWER: Telecom SOW is per the telecom drawings and specifications. The Security SOW is pathway, pull strings and back boxes per the drawings and specifications. Division 1 SOW is referring to active equipment, which will be purchased under separate contracts. All work shall be performed in all specification sections & drawings and will supplement/support work under other contracts.

Tasks

24) Please advise what work is involved in TASK areas for this contract.

ANSWER: Scope work is indicated in the drawings at task rooms.

Amendment No. 2 to Solicitation GS-11P-12-MK-C-0055 11/20/2012

AC

25) Most of the new AC units and the Make-up Air units do not show condensate piping. Please advise if we are to provide and install condensate piping.

ANSWER: Condensate piping is shown on the piping drawings. Condensate piping is to be provided and installed.

GC

26) Is signage included in the general contractor’s scope of work?

ANSWER: Yes, signage is detailed in the drawings and included in the specifications. All signage in the schedule is required to be provided by the GC.

27) Are the GC’s to provide the telecomm backbone cabling?

ANSWER: Yes, the GC’s are to provide backbone cabling and also to provide all cables as indicated on the drawings.

Responsibility

28) Who is responsible for paying for permits?

ANSWER: It is anticipated that no permits are required and if any are required the government will pay.

29) Is testing and inspection part of the scope of work? Please clarify.

ANSWER: Per the Construction Documents, all independent testing and inspection agencies shall be contracted by the general contractor. The general contractor shall provide a list of all independent testing and inspection agencies, firms, companies, etc. planned to be utilized within thirty (30) calendar days after award of the Administrative Notice-To-Proceed with forecast schedules of when each testing and inspection will occur. No testing and inspection will be performed by the Government.

30) Is there electric and water utilities available on site? Who is responsible for paying the water and electric consumptions during the construction period? Please clarify.

ANSWER: Water and electric utilities are on site and will be provided by the government with no cost to the GC.

31) Will the Owner be performing exploratory work for underpinning of existing walls where shown?

Please advise.

Amendment No. 2 to Solicitation GS-11P-12-MK-C-0055 11/20/2012

ANSWER: No. The underpinning configuration shown is for the anticipated configuration of existing footings for the existing walls and columns. The required configuration of underpinning may need to be adjusted based on exposed field conditions.

Questions Concerning Personnel

32) Is there a US citizenship requirement?

ANSWER: Personnel must be U.S. citizens or have documentation proving that they can legally work within the United States.

33) Please advise what the security clearance requirements are.

ANSWER: There is no Security clearance requirement for personnel working on the Potomac Annex Building #1 project. However, all personnel will have to pass a National Criminal Investigative Check through the HSPD-12 program requirements in addition to whatever checks are conducted by their employer and the office of General Services and Administration.

34) Can a site visit be set up for our subcontractors?

ANSWER: NO

35) Spec section 013100, 1.6. A. It the project superintendent. B is the project coordinator. Is this full time on site in addition to the project superintendent?

ANSWER: Yes, the Project Coordinator is full time and in addition to the Project Superintendent.

36) Can the safety officer also be the project superintendent?

ANSWER: Yes, provided that the Superintendent has met the qualifications of both positions.