MACC_Technical_Questions.pdf

QUESTION #1 REFERENCE SITE OBSERVATIONS AND E2.01

Please provide pictures of the main electrical room since the space was unavailable during the walk through.

ANSWER: Photos are provided as attachment to Amendment 0005.

QUESTION #2 REFERENCE SITE OBSERVATION

Should fuel tank be filled after testing and commissioning has concluded?

ANSWER: Yes, after testing and commissioning the fuel tank should be filled so that 380 gallons are in the tank.

QUESTION #3 DRAWING NO.: E6.02 AND E1.05 PLAN/DETAIL/SCHEDULE: _1

AND 2

Please provide additional grounding details for the generator. Is the existing concrete to be cut and removed for grounding cable to be buried, and then concrete replaced? Drawings E1.05 shows ground rods and grounding electrode system to be installed on concrete slab and brick wall.

ANSWER: Ground rods are to be installed in earth external of generator yard wall. Cut, remove, and replace concrete as required.

QUESTION #4 DRAWING NO.: E1.05 PLAN/DETAIL/SCHEDULE: ___1

Does the owner want the discarded generator and day tank after removal, or should the contractor dispose of them accordingly?

ANSWER: Contractor will dispose of these 2 items.

QUESTION #5 DRAWING E0.01 NOTE 2

What permits and costs are required in Note 2 of drawing E0.01?

ANSWER: No permit fees are required for removal from the NIH campus itself. Possible fees for the disposal/salvage of the existing generator and tank may occur as required by State or Federal law/regulations which the contractor is to determine as part of their proposal. The Generator is currently operational.

QUESTION #6 DRAWING E1.05 AND E1.03 PLAN/DETAIL/SCHEDULE: 2 AND 3

Please provide conduit routing plan for the following runs:

• Detail 3 – Exterior card reader to LAN ROOM 115

• Detail 2 – Generator to E2RP1-16

• Detail 2 – Generator to FE2RP1-8

• Detail 2 – Generator to FE2RP1-23, 25

• Detail 2 – Generator to E1LP1-18

• Detail 2 – Generator to ATS

• Detail 2 – Generator to Load Bank Trough

• E1.05 Detail 2 to E1.03 Detail 2 – Switchboard to Automatic Transfer Switch

E1.05 Detail 2 to E1.03 Detail 2 – Automatic Transfer Switch to EMPD

ANSWER: Conduit routes are to be determined by the contractor.

QUESTION #7 DRAWING E1.05 AND SITE OBSERVATION

DETAIL/PLAN/SCHEDULE: 2

During the site visit an access path between the generator and high voltages switches. Is there a trough underneath the generator area for conduit routing? Please provide pictures of the space beneath and access to the switchboard electrical room. If there is no trough, please answer the following questions:

• Should the exterior feeds be installed above ground, and surface mounted?

• If exterior feeds are installed above ground, how should they enter the B2 and B3 levels?

• If exterior feeds are installed above ground, please provide sealant details and specifications.

ANSWER:

1. Conduit routes are to be determined by the contractor.

2. Exterior feeds to the B2 and B3 level are to be determined by the contractor.

3. Typical exterior sealant for this type of application should be applied.

QUESTION #8 ROAD CLOSURE PERMITS

Is there a requirement for a road closure permit, to block the northbound traffic lane of Memorial Dr. during the removal of existing generator and the install of the new generator?

ANSWER: If required a 2 -3 week notice by the Contractor is required. The NIH COR will submit road closure form for approval.

QUESTION #9 PERMANENT FENCING E.105 NEW WORK NOTE 1

Please provide enclosure fencing specification

ANSWER: Match the existing fencing type and replace in kind. See photos provided as attachment to Amendment 0005.

QUESTION #10 ROOM B2-39 WORK, DRAWING E1.03, E6.02

Confirm location of Panel “EMPD.” E1.02 shows it in room B2-39. E6.02 notes it on 1st LVL.

ANSWER: Panel EMPD is in Switchgear Room B2-39.

QUESTION #11 EQUIPMENT HATCH TO SWITCHGEAR ROOM DRAWING E1.05,

DEMO PLAN NOTE #4

Confirm there is no demo or new work associated with the existing Equipment Hatch to Switchgear room.

ANSWER: Confirmed, there is no demo or new work associated with the existing Equipment Hatch to the Switchgear room.

QUESTION #12 GENERATOR ENGINE EXHAUST SPEC 22 0900

1. Provide Division 23 Spec referenced is Division 22 Spec section 3.2

2. Confirm coating requirements for new exhaust piping.

3. Confirm pipe size of existing exhaust piping.

4. Confirm existing hanger sizing and mean of fastening to existing brick wall.

5. Contractor suggests utilizing existing hangers, if possible, to minimize the impact to the existing brick wall. .

ANSWER:

1. Provide schedule 80 steel piping and supports as indicated on drawings.

2. See ASTM A106, and match existing color (red).

3. Size in accordance with manufactures recommendations for new 500 KW Generator.

4. Support wall for exhaust piping is concrete with brick veneer.

5. Utilizing existing hanger penetrations acceptable as long as all other requirements are met.

QUESTION #13 REVIT/BIM SECTION H.16.12 PAGE 59-60

Confirm the requirement to have the construction contractor create a Construction BIM Model for the Seed Project is required.

ANSWER: No BIM model is required for the MACC Seed project (NIH Building #4 Vivarium Generator)

QUESTION #14 CONSTRUCTION DEBRIS & TEMPORARY FACILITIES AND

CONTROLS, H.6.5 OF SOLICITATION; SPEC SECTION 01500-1 SOLICITATION

Confirm ALL waste disposal services cost is covered by DEP as noted in H.6.5. This conflicts with Spec Section 01500-1 1.2. C.7., noted that the Contractor covers the cost

ANSWER: All construction debris waste disposal will be covered by the NIH. Excludes existing Generator and Fuel Tank.

Question #15 NO REFERENCE Confirm if any hazardous material testing has been completed on Building 4, if so we request a copy of the findings. In Spec Division 01595 1.2.B.1, it references Division 13 “Removal of Asbestos Materials,” we request a copy of this Spec Division

ANSWER: No ACM is present on the surfaces and/or on the electrical materials in the project.

QUESTION #16 ANIMAL HOLDING ROOM WORK, DRAWING E1.04

The Animal holding rooms (B2-34, B2-36, B2-38) were not accessible during the Site Visit.

Please clarify the access requirements to these room, to perform the required work including additional safety, health and cleanliness requirements. Is this work to be performed during normal working hours or during coordinated outages/off hours?

ANSWER: This is a germ-free vivarium. No special inoculation requirements. Full gowning upon entry procedures enforced.

QUESTION #17 FENCE E1.05 DETAIL 2 AND 3

Detail 2 and 3 and New Work Plan Notes #1 on sheet E1.05 call for the new vertical and horizontal fence. Please provide additional details and specifications (is it galvanized / vinyl coated / color / slats / attachment details – surface mount or cored / gauge of fence / spacing of mesh, how high is the fence etc.) Detail 3 does not show a bottom rail – please confirm.

ANSWER: See response to Question #9.

QUESTION #18 CONCRETE DRAWING E1.05, NOTE 12

New Work Plan Note 12 on sheet E1.05 calls for the new concrete equipment pads. Please provide additional detail / specification of the concrete. (dowed into existing slab / demo existing required / rebar requirements / concrete mix design etc.)

ANSWER: Equipment pads are to meet the generator manufacturer’s requirements.

Existing pads will not be adequate for new 500KW Generator. Remove existing Generator and Fuel Tank pads (approximately 6’x10’ each) and construct new equipment pad for new 500 KW Generator. Both pads need to be removed to meet all new Generator requirements.

QUESTION #19 COMMISSIONING, STATEMENT OF WORK, SECTION 11-E (PAGE

7 OF 8)

Statement of work, section 11-E includes commissioning reports. Please confirm that the Government will provide this required report to the Contractor for inclusion in the O&M Manual.

ANSWER: The contractor will be involved in the final testing/transfer process (FPT). A final testing report will be provided to the contractor.

QUESTION #20 COMMISSIONING SOLICITATION, SECTION H.4.11.2 (PAGE 29 OF

114) Please confirm that per the master solicitation, section H.4.11.2, that the dual hat Superintendent/QC Manager can serve as the Collateral Duty Safety Officer if the jobsite personnel headcount requires this role?

ANSWER: Confirmed.

QUESTION #21 COMMISSIONING STATE OF WORK SECTION 2-Z (PAGE 2 OF 8)

Statement of work, section 2-Z indicates that commissioning will incur commissioning services by the government. Please confirm that the Contractor is only required to furnish commissioning trade support and that the commissioning agent (CxA) is by the Government.

ANSWER: Confirmed.

QUESTION #22 NO REFERENCE PROVIDED

Will construction management be included within the services needed?

ANSWER: Yes.

QUESTION #23 FUEL OIL PIPING SCOPE OF WORK

Is a remote fill station required for the new generator?

ANSWER: No.

QUESTION #24 GENERAL CONDUIT ROUTE

Is the “general” conduit route within the building to be provided by the design engineer or is this up to the individual contractor to determine.

ANSWER: See response to Question #6.

QUESTION #25 CONDUITS

Can the conduits from the Generator area be run across the ground over to the transformer side or do these conduits need to go down through the concrete and then back up into the transformer area?

ANSWER: Conduits can be placed on the ground or overhead with provisions for head or foot hazards.

QUESTION #26 FUEL TANK

Approximately how many gallons of fuel are in the existing day tank?

ANSWER: See response to Question #2.

QUESTION #27 DEMOLITION PLAN NOTES ON E1.05

Is the existing generator and day tank deemed “unsalvageable” or are the generator and fuel tank to be turned over to the Government? If salvageable and to be turned over to the Government, where is it to be taken?

ANSWER: See responses to Questions #4 and 5.

QUESTION #28 NEW WORK PLANS, NOTES (1) ON E1.05

The note indicates that the fence is to be “Custom”. Are there details for the new fence to be installed? Should it just be chain link?

ANSWER: See response to Question #9.

QUESTION #29 NEW WORK PLANS, NOTES (1) ON E1.05

The note indicates that the fence is to be “Custom”. The existing fence/barrier around the generator is a combination of chain link and panels of metal slats. Please provide a basis of design for the fail secure mortise lockset to be installed in the fence.

ANSWER: See response to Question #9. Contractor to provide a suitable failsafe locking device. See example in Photos as part of Amendment 0005.

QUESTION #30 GENERATOR FUEL TANK

Is the generator fuel tank to be turned over with a full tank or will the Government be providing the final filling after testing?

ANSWER: See response to Question #2.

QUESTION #31 CONCRETE PADS

Do the concrete pads need to have rebar placed in them?

ANSWER: Build pads to Generator Manufacturers specifications. Rebars are typically required for pads of this type.

QUESTION #32 QC/SAFETY

Can the superintendent also act as the QC/safety manager, or do these positions need to be separate?

ANSWER: Yes.

QUESTION #33 GENERATOR OPERATION TRAINING

Is a video recording of generator operation training required?

ANSWER: No.

QUESTION #34 GENERATOR EXHAUST

Is coating or paint required on the generator exhaust? If so, please provide specifics.

ANSWER: Yes, see response to Question #12.

QUESTION #35 TEMPORARY GENERATOR

Does a temporary generator need to be provided or will the Government provide a temporary generator if it is required? If a temporary generator is to be provided, can it sit at the loading dock?

ANSWER: A temp generator will be provided by the NIH and be placed at the loading dock closest to the R/S connections.

QUESTION #36 GENERATOR AND FUEL TANK DISPOSAL

What NIH environmental requirements are to be met for disposal of the existing generator and fuel tank. What paperwork is required?

ANSWER: No paperwork is required, but ALL of the fuel must be drained before it can be transported. No leakage should be incurred during the rigging and hauling process.

QUESTION #37 ASBESTOS

Is there any known asbestos located in Building 4?

ANSWER: No ACM is present on the surfaces and electrical materials in the project. If ACM is suspected or found during the routing of conduit throughout the project, then NIH/ORF will sample and abate the required/affected area.

QUESTION #38 ANIMAL HOLDING FACILITIES

Will the awarded contractor be permitted to pass conduits through/ over/ above animal holding facilities?

ANSWER: Yes.

QUESTION #39 EXISTING GENERATOR

Can the existing generator be run to use up any fuel located in the fuel lines?

ANSWER: No. Take apart the lines and filter and drain them completely.

QUESTION #40 GENERATOR DEMOLITION, DRAWING E0.01

Note #4 on E0.01 states that items to be removed and not reused shall be examined by the Owner before disposal off-site. Section 2.DD. in the Statement Of Work states that the GC shall remove and discard of the existing generator and fuel tank. Please clarify if the Owner will require examination of the existing generator and fuel tank prior to disposal off-site as mentioned above.

ANSWER: Yes, this is correct. The COR will inspect prior to the rigging date.

QUESTION #41 MECHANICAL, DRAWING E0.01

There is an item (mechanical equipment tag symbol) under the equipment legend on E0.01 that references a mechanical schedule on M6.01, and it appears this drawing was not included in the original set of plans. Please confirm the reference to M6.01 is a misprint or provide M6.01 along with any other Mechanical drawings that should have been included in the original set of plans.

ANSWER: This is a typo. No drawings are missing.

QUESTION #42 MECHANICAL DRAWING E1.05, DETAIL 3

Please provide a specification for the new chain link fence enclosure located at the generator area as detailed on E1.05.

ANSWER: See response to Question #9.

QUESTION #43: SEED PROJECT, PANEL E1LP1 EXACT LOCATION, DRAWING

E2.01 Where is the exact location of panel E1P1 in Electric Room 127?

ANSWER: There is not a panel E1P1 in this room. See Solicitation Documents and Floor Plan /Electrical Drawings provided as attachment to Amendment 0005.

QUESTION #44 SEED PROJECT, SECURITY PANEL EXACT LOCATION,

DRAWING E2.01

Where is the exact location of the security panel in LAN Rm 115?

ANSWER: To the left of the door as you enter.

QUESTION #45 PANEL E2RP1 EXACT LOCATION, DRAWING E2.01

Where is the exact location of panel E2RP1 in Electric Room 127?

ANSWER: This panel is located on the left side as you enter. See Solicitation Documents and Floor Plan /Electrical Drawings as attachment to Amendment 0005.

QUESTION #46 ELECTRONIC SAFETY & SECURITY -CARD READER; 01500 SITE

ENCLOSURES, DRAWING E1.05 (3) NIH DOOR SECURITY

Please identify existing facility Electronic Safety & Security Company

ANSWER: Xpect Solutions Inc.

QUESTION #47, NO REFERENCE

1. What is the size of the concrete pad for the existing 150kw generator enclosure?

2. What is the size of the fuel tank required for a 500 Kw generator?

3. How many hours of continuous operation will be required for the 500kw generator?

4. Does the temporary use of the NIH back-up generator include fuel?

5. Is the building occupied 24/7

6. Can a crane pick be done on a weekend?

7. What is the building used for?

8. Can it be temporarily shut down?

9. Access in the basement switch gear area per drawing E1.01 is limited by large return air ducts.

Will this area be demoed by NIH to provide clear access? Are we to provide this demo and put back?

10. Will the new 800a ATS require a UPS as well?

11. Will the 500Kw generator be able to maintain all critical loads in building #4 for a 12-hour period?

12. Will we need a schedule showing shut downs as milestones?

13. Are any supply fans (2-#4A/4B & EF#1) to be supplied by GC?

14. E1.01-DEMO – (1) Remove power circuit to Siemens control panel At AHU-2 (2) Remove ATC back to source. Does this include the all conduit in the switch gear basement area?

15a. Will any of the 150kw Generator and switch gear equipment need to be salvaged?

15b. Will 3 ea. water pump replacements (CHWS P-1, CHWS P-2 & CHWS P-3) be able to be done during normal hours?

16. Per E1.04 DPN-1] Disconnect & Remove existing power feeder. Measure conduit back to source…About 215LF to B2-35. Minimize transfer time from normal to Emergency power.

What is the maximum amount of time allowed for this feeder replacement shut down?

17. To demo the existing Generator located in the screened in area in front of building #4 will require the demolition of the existing security fencing. Will this fencing need to be replaced?

Will the louvers need to be replaced? Please advise.

ANSWER:

1. Existing concrete pad dimensions are 6’x10’ for both the existing Generator and the Fuel Tank.

2. See specifications.

3. See specifications.

4. Yes

5. Yes.

6. Yes.

7. Laboratory.

8. No.

9. No demo will be incurred. Electrical equipment will either be rigged through the hoist way or carted under the duct. Freight elevator is also available.

10. Install only what is on the drawings.

11. Yes.

12. Yes.

13. No.

14. Salvage what is described as demolished on the drawings.

15a. See Demolition drawings for these items and SECTION 01732 - SELECTIVE

DEMOLITION.

15b. The Chill Water pumps are not being replaced.

16. 4 hours.

17. The existing fencing is clearly shown as demolished on the drawings. New fencing is shown to be installed as well. See response to Question #9.

QUESTION #48 ELECTRICAL CONDUIT SPEC 206533, PARA 3-4/3.1 b/3.b Per Spec Section 260533-4-3.1B-3b conduit located in mechanical rooms is to be rigid conduit however it was noted during the walkthrough most if not all of the conduit in these locations was in EMT. Please confirm is rigid is required or will EMT be allowed to match existing?

Per Spec Section 260533-4-3.1B-3b conduit located in mechanical rooms is to be rigid conduit however it was noted during the walkthrough most if not all of the conduit in these locations was in EMT. Please confirm is rigid is required or will EMT be allowed to match existing?

ANSWER: Per the specifications and NIH Design Requirements Manual, rigid conduit is required in mechanical rooms.

QUESTION #49 ELECTRICAL COORDINATION STUDY, SPEC SECTION 206573,

PAGE/ART./PARA 1

Per Spec Section Per Spec Section 260573 a Coordination study is required.

Please confirm the only items on the study will be any new devices or panelboards and that no coordination of existing panels/devices is to be included.

If any existing feeder measurements is required for the purpose of the coordination study of new devices, those existing lengths and/or conductor size/types will be provided by others to facilitate the coordination study

ANSWER: No coordination study required.

QUESTION #50 ELECTRICAL CONDUIT ROUTING, SPEC SECTION 260533

It does not appear that the exact routing of new feeders to new panels has been provided, such as the new feeder to EDP1. How will we coordinate the routing and layout for this feeder? For the purposes of pricing are we to assume any needed off hours work for the installation of this feeder? Will the feeder be going through any areas that may require rigid conduit such as mechanical spaces as noted in the specs?

ANSWER: Per the specifications and NIH Design Requirements Manual, rigid conduit is required in mechanical rooms.

QUESTION #51 PARKING RESTRICTIONS, SPEC SECTION 01140, 4/DD

Per specifications 01140-4-DD For parking restrictions in effect under this contract see Contract for Construction and applicable Office of Research Facilities contractor parking policy. I was unable to locate this policy could you please provide or clarify the parking restrictions

ANSWER: Please refer to Section H.6.10 and H.6.11 of the Solicitation.

QUESTION #52 TEMPORARY ELECTRICAL SPEC SECTION 263213

PAGE/ART/PARA 2/1.4/A

Per specifications 263213 P.3 Interruption of Existing Electrical Service: Do not interrupt electrical service to facilities occupied by Owner or others unless permitted under the following conditions and then only after arranging to provide temporary electrical service according to requirements indicated:

Since this work involves the replacement of a 150kw generation with a 500kw generator what size temporary service will be required?

ANSWER: The temp service will be a 500kw Gen.

QUESTION #53 DRAWINGS

The contract drawings do not show a complete overall layout of the building to scale. Can As Built drawings be provided?

ANSWER: No original scale drawings are available. Past renovation drawings will be provided in Amendment 0005.

QUESTION #54 DRAWINGS, #E1.03

Drawing E1.03 shows a new panel EMPD to be located in the space in-between SWBD 1 and MCC1. SWBD 1 has rack out style breakers. This new panel’s dimensions will be roughly 48” wide. This will not acceptable per the NEC. Are there any other areas to install this new panel?

ANSWER: The available space between SWBD-1 and MCC-1 allows for a 48” W x 9.5” D distribution panelboard.

QUESTION #55 DRAWINGS

Please confirm the generator yard/enclosure area is directly above the existing Electric room #B2-39.

ANSWER: Yes.

QUESTION #56 DRAWINGS, #E6.02

Drawing E6.02 shows an EPO to be installed in the generator yard. Please confirm this is de energize the 800-breaker feeding the load bank receptacles. Also please provide the circuit needed to feed this switch.

ANSWER: EPO installed in generator yard shall de-energize the generator.

QUESTION #57 DRAWINGS, #E6.02

Scope of work states that after hours and weekend work will be deemed necessary for electrical outages lasting over 2 hours. How long can the building go without power?

ANSWER: Approx. 4 hours at 70 degree outside air.

QUESTION #58 COORDINATION STUDY

There is a coordination study listed in the specifications. Is the intent to have a complete coordination study required or just what we are installing?

ANSWER: Coordination will only be required for items being installed in the contract which will get a Functional Performance Test.

QUESTION #59 CONSTRUCTION NOISE

During this project there will be noise made throughout the project. Will the building be occupied during this time or will the animals be moved to another location?

ANSWER: The animals will be present. Also, see Question 76.3.

QUESTION #60 SUPERVISION

Please confirm only one person is required to fulfill the duties of Superintendent, QCM, and

SSHO.

ANSWER: Confirmed.

QUESTION #61 TRAILER

Will a Project Site Office Trailer be required? If so, where will the area for the trailer be located?

ANSWER: No.

QUESTION #62 PROTECTION OF FLOORS

Are there any requirements for Floor Protection or Protection of Floors and Walls in Elevators?

ANSWER: Protect the lobby flooring from the loading dock to both elevators. The service elevator will be utilized for material transport. No wall protection required in the service elevator.

QUESTION #63 SCOPE OF WORK

Scope of work (Project Description FF) states NIH will supply and maintain a backup generator during construction and the electrical contractor is responsible for temporary cables and connection to the building for back up emergency power. Please confirm what size generator will be provided. We would also recommend a temporary transfer switch be provided during construction as well. Would NIH supply this?

ANSWER: NIH will provide the backup 500kw Generator. The Contractor provides the temp wiring from the Generator to the ATS/Bldg to insure there is available Emergency power at all times.

QUESTION #64 CRANE LIFTS

Please confirm all crane lifts to remove the existing generator and place the new generator must be performed on weekends only.

ANSWER: Yes.

QUESTION #65 SITE CONFLICT, DRAWING E1.03

Drawing E1.03 shows the generator annunciator panel to be installed on the east wall by the door of the switchgear room. There is a DigitaLogic panel currently in that location. Is there an alternate location for the generator annunciator panel or will the DigitaLogic panel need to be moved?

ANSWER: Locate generator annunciator panel in its current location or in proximity.

QUESTION #66 MEANS 7 METHOD CLARIFICATION

A new 8” exhaust pipe is to be mounted on the exterior of the building with new brackets and hardware. Will it be acceptable to route conduit needing to go to the fourth floor in the same manner?

ANSWER: No. This conduit won’t be routed on the exterior of the building.

QUESTION #66 GENERATOR FENCE ENCLOSURE DRAWING E1.05 AND E6.04,

2/E1.05 AND 2/E6.04

Plan 2/E1,05 indicates that the generator fence enclosure is only on two sides with the fence abutting the existing walls. Elevation 2/E6.04 shows new fence being installed along the existing walls with a top enclosure. Which of these is to be followed for our pricing?

ANSWER: Use plan E1.05; 2 sides. A fence top will be required just as existing. See also Question #9.

QUESTION #67 CONSTRUCTION SCHEDULE, SOW PAGE 6-PARA 10A

Paragraph 10.A of the Statement of Work calls for a Baseline Construction Schedule to be submitted with our proposal. As it will not be possible to get firm delivery dates for the new equipment until after award of subcontracts can we provide a Preliminary Construction Schedule in lieu of a Base Line Schedule?

ANSWER: Please submit a baseline schedule with an expected/typical delivery date on the long leads that corresponds with the Period of Performance of the seed project.

QUESTION #68 NEW GENERATOR FLUE, DRAWING E.6.04, 2,/E.6.04

At the site visit it was noted that the existing generator flue is painted. Does the new generator flue need to be painted? If it does, please provide specifications for the paint.

ANSWER: See response to Question #34.

QUESTION #69 WALL CONSTRUCTION DRAWING E.6.04, ELEVATION 2/E.6.04

Due to the weight of the new 8” Schedule 80 Generator flue, can we be provided with what the construction of the wall is that we are to attach to? Main concern is what the substrate is behind the brick veneer.

Per this elevation the new fence enclosure is to extend above the existing enclosure wall. At the site visit is was noted that there are three (3) pipes or conduits that are supported near the top of the enclosure wall. These are nor shown any where are on the documents. Are these existing pipes/conduits to be relocated and if so can we be provided with what these are?

All of the drawings provided are for just sections of the building where the work is to be performed. Can we be provided with a scaled drawing of each floor so that we can determine the length of some of the new conduit runs?

ANSWER:

1. Construction of the wall is concrete with a brick veneer.

2. Conduit located on the enclosure wall within generator area service the existing generator area lighting and existing load bank connections. Refer to the drawings for demolition scope.

QUESTION #70 EXISTING GENERATOR AND TANK CONCRETE PADS, DRAWING

E.1.05, 1/E.105 DEMOLITION PLAN

Per notes 1 & 2 we are to remove and dispose of the Generator and fuel tank. At the site visit it was noted that these are currently on concrete pads and the removal of these is not addressed in the documents. Are we to remove these existing concrete pads?

ANSWER: See response to Question #18.

QUESTION #71 EXISTING GENERATOR FUEL, DRAWING E.1.05, GENERAL

DEMOLITION NOTES

Note 6 states “The fuel in the Generator Fuel Tank shall be pumped out, filtered and re-pumped into the new generator fuel tank. To facilitate the installation of the new generator the existing generator and fuel tank need to be removed prior to the new generator being installed. Are we to include the removal and storage of the existing fuel until it can be pumped into the new generator? Also, how much fuel are we to assume is in the tank as this will be required to properly price this work?

ANSWER: See response to Question #102 Answer 2. See response to Question #2.

QUESTION #72 DRAWING INFORAMTION NEEDED, DRAWING E1.05

On the provided partial drawings, the location for installing new ground rods appear to be over a building structure’s roof. This location would penetrate the structure if installed as designated and may also be too close to the building. Please confirm a code-compliant location to install the 6-10-foot rods.

ANSWER: Ground rods to be installed in earth external of generator yard wall. Cut, remove, and replace concrete as required.

QUESTION #73 DRAWING INFORAMTION NEEDED

Please provide complete building floor plans for seed project.

Drawings are needed to show path of conduits from new generator and to confirm location of temporary generator set.

ANSWER: Floor plan/Electrical drawings will be provided as part of Amendment 0005.

QUESTION #74 DRAWING INFORAMTION NEEDED

Please confirm that the structure proposed to support the new equipment will support the weight of the new larger generator.

ANSWER: Yes, the structure will support the new load.

QUESTION #75 SOLICITATION DOCUMENT

1. Please confirm that per seed project SOW paragraph 2Y that the Government will be performing commissioning for the project and bidders thus need not include any commissioning services in our proposal.

2. Seed project SOW paragraph 7 refers to the design process, on-board reviews, etc. Given the seed project’s already completed design, should this entire paragraph be removed from the seed project SOW?

3. Will the winning contractor be provided the CAD files from the approved design, for completion of As-built drawings at the end of the project?

4. Seed project SOW paragraph 11D.i indicates turnover of As-built drawings to the A/E at the end of construction. Shouldn’t As-builts be turned over to the Government during closeout of the project?

ANSWER:

1. The Government will be performing a Functional Performance Test (FPT) that includes a full transfer of generator power to the building.

2. Correct.

3. Yes

4. Yes.

QUESTION #76 SOLICITATION DOCUMENT

1. Seed project SOW paragraph 10A calls for a baseline construction schedule to be included.

Does the Government have any preferred format for the schedule to be provided in, as well as in which Volume and Subfactor it should be included?

2. How long of a power outage is NIH prepared to accept during electrical switchovers for the seed project?

3. What is the maximum noise level that NIH is willing to accept in the Vivarium? Or will the animals be moved to another location during construction? The animal will not be moved.

4. Where is the Government-provided temporary generator going to be located? What size will it be? Will it also come with a Government-supplied transfer switch?

5. Drawing E1.03 shows a new panel EMPD to be located in the space in-between SWBD 1 and MCC1 in Switchgear Room B2-39. SWBD 1 has rack out style breakers. This new panel’s dimensions will be roughly 48” wide. This will not acceptable per the NEC. Are there any other areas to install this new panel?

ANSWER:

1. MS Project shall be used.

2. 4 hrs.

3. Hammer drilling will be acceptable. Time/dates will be coordinated with the NIH staff.

4. Next to the existing R/S connections at the loading dock; 54kw; no, we will use either the existing or the new ATS

5. The available space between SWBD-1 and MCC-1 allows for a 48” W x 9.5” D distribution panelboard.

QUESTION #77 SOLICITATION DOCUMENT

1. The wall between Mechanical B2-42 and the Vivarium appeared to be coated with an asbestos-containing material. Should bidders include abatement of the parts of the wall impacted by the seed project in our proposals?

2. The drawings call for a chain link fence to be installed. Please provide the specifications (basis of design) for the new security fence to be installed.

3. If new heavy-duty screen walls (to match the existing) are desired, please provide a basis of design, or specification, for the new screen walls to be provided.

4. Will the Government accept LED fixtures in lieu of fluorescent?

5. Please confirm that neither LEED registration nor certification apply to the seed project. .

1. This isn’t ACM but will be verified before drilling occurs if the Contractor requires a report.

2. See response to Question #9.

3. See response to Question #9.

4. Yes.

5. LEED registration and LEED certification are not required.

QUESTION #77 SOLICITATION DOCUMENT

1. Please specify the limits of the coordination study desired by the Government, with the caution that a full facility study would certainly entail months of study and hundreds (or thousands) of man-hours to complete. Usually, a coordination study only to the first upstream device (switchgear, panel, ATS, etc.) from the new work would be implied.

2. The contract drawings do not show a complete overall layout of the building to scale. Can As-Built drawings be provided?

3. Please confirm if the generator yard/enclosure area is directly above the existing Electric room B2-39.

4. Drawing E6.02 shows an Emergency Power Off to be installed in the generator yard. Please confirm this is to de-energize the 800-A breaker feeding the load bank receptacles. Also, please provide the circuit needed to feed this switch.

5. Will a second site visit be allowed?

ANSWER:

1. No coordination study is required.

2. Floor plan/Electrical drawings will be provided as part of Amendment 0005.

3. Yes.

4. EPO installed in generator yard shall de-energize the generator.

5. No

QUESTION #78 SPEC SECTION 260573

Please confirm the coordination study only covers new equipment being installed and existing equipment being modified in the project scope of work.

ANSWER: No coordination study is required.

QUESTION #79 SOW DUMPSTER CLARIFICATION

Project SOW, page 2, clarification EE notes that Dumpsters (Construction waste & recycling) “are located just across the Memorial Rd at the Bldg. 10 loading dock.”. Is this denoting NIH will furnish dumpsters for the project or just noting the location where project dumpsters will be allowed to be placed?

ANSWER: NIH is providing the dumpsters.

QUESTION #80 MATERIAL DELIVERIES

Work hours are clearly noted on bid documents but it’s unclear if there are restrictions on days & times materials can be delivered. Please advise if there are special restrictions for deliveries.

ANSWER: Deliveries will be made Mon-Fri 6am – 4pm.

QUESTION #81 ACCESS CONTROLS REQUIREMENTS DRAWING E-1.05, 3

1. For the intrusion access control for the Gen Yard doorway, is contractor responsible for only the backbone / conduit or also the devices, wiring, final terminations and controls work.

2. If Contractor is responsible for access controls, devices and wiring, please advise if there is already an existing security controls contractor in the building and POC.

ANSWER:

1. Contractor is required to supply/install conduit and pull string. Access control contractor (Xpect Solutions Inc.) installs wiring, devices and connects.

2. See response to question #46.

QUESTION #82 COMMISSIONING REQUIREMENTS

Project SOW, page 2, clarification Z notes “Commissioning – This will incur commissioning services by the government. Complete functional performance testing will occur before acceptance.

Based on this line item, Contractors understanding is that Commissioning Agent & Services are to be provided by Government and only coordination is required by Contractor. Please confirm if understanding is correct.

ANSWER: Yes, and yes.

QUESTION #83 GENERATOR FLU SUPPPORT BRACKETS, DRAWING E-6.04

Please provide as-built drawings of wall construction for where new generator flu supports will be mounted.

ANSWER: Floor plan/Electrical drawings will be provided as part of Amendment 0005.

QUESTION #84 EXISTING EQUIPMENT HATCH, DRAWING E-1.05

Please confirm no work is to take place, demolition or new to the existing equipment hatch that is called out on demolition notes #4 on drawing E-1.05.

If new work is expected for the existing equipment hatch, please advise what the scope of work envelopes.

ANSWER: See response to Question# 11.

QUESTION #85 INTERIOR AS-BUILTS DOCUMENTATION

Contractor would like to request any available as-built documentation for the building (Building 4).

ANSWER: Floor plan/Electrical drawings will be provided as part of Amendment 0005.

QUESTION #86 ABATEMENT ACM SURVEY

Contractor would like to request if an abatement ACM Survey has been performed? If so, Contractor request copy of Survey to identify HOT areas of work.

ANSWER: See answer to Question #37.

QUESTION #87 ALLOWABLE HOURS FOR ARTICULATING LIFT

Project SOW, page 2, clarification CC notes that crane lifts will have to be performed on the weekends. Will the same apply to the use of a lift to remove & install the generator flue and supports on the exterior of the building

ANSWER: No. A lift located in the generator area for the flue install can occur during normal work hours. Weekends are required if we have to block a road or the loading dock.

QUESTION #88 UTILITY SHUTDOWN

Please advise if utility shutdowns will be scheduled for night hours only, and what period of time will be allowed for a given shutdown.

ANSWER: Full building power shutdowns will occur Mon-Fri 7pm – 12am.

QUESTION #89 WORK RESTRICTIONS SPEC 01140-3, P3 ITEM X

Please advise if there are any work restrictions applicable to the loading dock/parking at the backside of the building, or the elevators and stairs within the building.

ANSWER: 1 parking spot for a work truck/van at the loading dock during work hours will be provided. The dock must be accessible Mon – Fri 7am – 4pm. Elevators and stairwells are always open. Plan to use the freight elevator as much as possible.

QUESTION #90 HAZARDOUS MATERIALS PAGE 34, SECTION H.4.17, ITEM A

Please confirm if NIH has available information, or a recent hazardous materials survey, to indicate if hazardous materials are present in the work areas within Building 4. If hazardous materials are present, please provide specifications or drawings to clarify the extent of the hazardous materials, and procedures for hazardous materials removal, including Division 12 Section “Removal of Asbestos Materials” referenced on page 1 of Specification section 01595.

If information to identify the extent and location of hazardous materials is not available, please confirm that remediation of Hazardous Materials will be subject to the “Differing Site Conditions” clause FAR 52.236-2.

ANSWER: See response to Question #37.

QUESTION #91 SECURITY MANAGER RFP PAGE 38, ITEM B(1) PAGE 58,

SECTION H.16.8

Please confirm if a Security Manager will be required for the Building 4 seed project, and if that individual will be required to be dedicated on-site

ANSWER: A security manager is not necessary for this project.

QUESTION #92 EXISTING CONDITIONS RFP PAGE 43, ITEM 5

Please confirm if any of the affected electrical work (including panels) interfaces with the fire alarm, detection, and suppression systems. If there is interface between these systems, please provide additional diagrams or as-built information to show current conditions, to allow for maintenance of fire and life safety systems during construction.

ANSWER: No.

QUESTION #93 STORAGE OF SALVAGE MATERIALS, RFP PAGE 50 SECTION

H.9.1 Please advise if Offerors will be permitted to store material indicated as “salvage” within Building 4. Please advise if there is a designated area to securely hold these items. If storage will not be permitted within the building, please advise if Offerors will be allowed to maintain a storage unit within the parking are behind the building.

ANSWER: If material is labeled as salvage, it is to be removed from the NIH campus or placed in the dumpster. Coordinate with the NIH COR. The Generator and its Fuel Tank must be removed from the NIH campus by the Contractor.

QUESTION #94 EXISTING SITE CONDITIONS DRAWING E0.01 GEN NOTE 3

Please advise if record as-built drawings are available for Building 4, and if those can be shared with offerors to document and assess existing conditions to report to the Architect, Engineer, and Owner before submitting the proposals.

ANSWER: Floor plan/Electrical drawings will be provided as part of Amendment 0005.

QUESTION #95 HAZARDOUS MATERIALS

Please confirm that The Owner is the generator of all unknown pre-existing hazardous material and will sign transportation manifests as such in the event that abatement is necessary.

ANSWER: NIH will not sign a transportation manifest. All ACM will be removed from the material before it leaves the campus. See also response to Question #37.

QUESTION #96 HAZARDOUS MATERIALS

Please confirm that Owner will indemnify the Contractor for any loss, cost, expense, or fine related to any pre-existing hazardous material.

ANSWER: If a pre-existing hazardous material is discovered, contractor shall notify the NIH COR immediately. See also response to Question #37.

QUESTION #97 SUSTAINABILITY SPEC SECTION 01310 PAGE 3

Confirm if section 1.5 “Sustainable Construction and Conservation” is required for the seed project, despite this project not being subject to LEED credit calculations.

ANSWER: LEED registration and LEED certification are not required.

QUESTION #98 QUALITY CONTROL SPEC SECTION 01450, PAGE 5 SECTION F.6

Please confirm if the appointed Quality Control Manager position is expected to be exclusively dedicated to QC and cannot perform other field functions.

ANSWER: The Superintendent can also perform this role.

QUESTION #99 TEMPORARY SERVICE DRAWING E0.01 DIVISION 16 GENERAL

NOTES

Reference General Note #17. Please confirm if Offerors will be allowed to utilize existing building electrical service for any interior works, and if NIH will charge Offerors for use of those utilities. If Offerors will be responsible for metering and paying for building service used, please provide the rates charged to offerors for the relevant unit of measure.

ANSWER: The Contractor will have full use of the buildings existing electrical power during construction.

QUESTION #100 DEMOLITION NOTES DRAWING E1.01 PLAN NOTE 1

Plan note 1 requires the demolition of the circuitry from the existing VFD to panel DPB2. Please confirm if the conduits housing this circuitry can be abandoned in place through cutting and capping, in lieu of removing all housing/infrastructure along with the circuitry. If the conduits are required to be demolished and removed, please provide an estimated linear footage or as-built condition to use for quantification

ANSWER: Remove conduit back to a suitable/ indiscrete location and cap.

QUESTION #101 DEMOLITION NOTES DRAWING E1.01 PLAN NOTE 1

Please provide single line diagrammatic information for all panels to be demolished or temporarily modified.

ANSWER: No panels are demolished. Additional Floor plan/Electrical drawings will be provided as part of Amendment 0005.

QUESTION 102, NO REFERENCE

1. How many copies of the Volumes would you like? On page 3 of the solicitation it states, “Offerors are responsible for submitting proposals as to reach the Government office designated in the solicitation by the date/time specified in Block 13 of the SF1442.”

While on page 102-104 of the solicitation it has different amount of hard copies for each volume.

2. Drawing E1.05 demolition note 6 says to reuse the existing diesel fuel. Can the fuel be used for commissioning the new generator?

3. Does the NIH already have the DOEE permit to construct and operate the generator?

4. Can the new 500KW generator be delivered to the site and rigged into position during normal business hours during the week?

5. Can the existing 150KW generator be removed from the site during normal business hours during the week?

6. Is the existing 150KW generator operational?

7. The SOW states that the NIH will provide a temporary back-up generator and the contractor must provide cables and make the connection. How long do the cables need to be?

8. Spec 263213 2.3 K. 5 requires a thermostatically controlled heater for the battery. We see no circuit for this heater?

9. Spec 263213 2.7 I requires a strip heater for the generator. We see no circuit for this heater?

10. Drawing E1.05 new work plan note 9 requires 4-200A pin and sleeve receptacles connected to a NEMA 3R trough. Would it be acceptable to provide a 800A NEMA 3R generator connection cabinet with CAM lock receptacles in lieu?

11. Spec 260533 3.1 A and B specifies rigid steel conduit for outdoors, loading dock areas, corridors, mechanical and animal holding rooms. Drawing E1.05 the NIH door security detail has a note to use “1” conduit EMT single gang construction box” for the card reader. These are conflicting requirements, clarify?

12. Drawing E1.04 the three circuits for the animal holding receptacles go to panel ELB2A.

The panel schedule on drawing E6.03 states the panel is located in corridor B2-08. We cannot find the panel on the drawings?

1. One original and 3 copies (redacted copies).

2. The fuel is to be scrubbed or replaced with fresh fuel before it can be used in the new Genenrator.

3. Yes.

4. No.

5. No.

6. Yes.

7. From the space directly adjacent to the R/S connections at the dock to the where the electrical contractor decides.

8. Provide additional 120V power connections from panel FE2RP1 as required. Coordinate power connections with generator manufacturer.

9. See response #8.

10. No.

11.Outdoor conduit is required to be rigid steel conduit. EMT is acceptable indoor locations with the exception of areas where conduit is exposed and subject to severe physical damage as outlined in the specifications.

12. FELB2A is on page E108

QUESTION #103, ELECTRONIC SAFETY & SECURITY – CARD READER, SPEC.

SECTION NO. / 01500 - SITE ENCLOSURES, DRAWING E1.05 AND (3) NIH DOOR

SECURITY

1. Please identify existing facility Electronic Safety & Security Company.

2. We would like to set our crane atop the concrete parking area adjacent to the outdoor generator off Memorial Ave for loading and offloading generator’s and Fuel Tanks. Are there any issues of concern for stability at this particular area?

1. See response to Question #46.

2. The crane can be set on Memorial Ave. A crane plan will be required, and details will be evaluated for approval.

QUESTION #104, SOLICITATION ISSUE

Please confirm that design firms and consultants on existing contracts with NIH are not precluded from participating in this MACC. If there are design firms or consultants so precluded, can you please specify which firms are precluded?

ANSWER: Confirmed.

QUESTION #105, STATEMENT OF WORK

1.Please confirm annunciator panel location. Who programs BAS interface to ATS?

2. Clarification of ATS requirements: is a neutral position pause needed? Are exterior LED lights acceptable?

3. Is temporary generator sized to accommodate the whole portion of affect building?

4. To what extent is existing infrastructure information available for the fault current, arc flash, and coordination studies?

5. Is a single ATS acceptable (no separation of code and non-code required systems)?

ANSWER:

1. Locate generator annunciator panel in B3 level maintenance office. Siemens will program this interface.

2. Refer to specification section 263600 paragraph 2.3.I.

3. Yes. It will pick up the load that the new 500KW Generator is designed for.

4. Information that is available will be provided before construction begins.

5. Yes.

QUESTION #106, SPECIAL WORKING REQUIREMENTS-ANIMAL STORAGE

AREA

1. Are there special requirements (i.e. – sound, vibration, noise or special work hours) when working in areas in or around the animal storage section of the project

2. Are the any medical requirements or vaccinations required for personnel entering the portions of the project where animals may be present or stored?

ANSWER:

1. In general no but see response to Question #76.3.

2. No.

QUESTION #107, CIRCUIT BREAKER REQUIREMENTS, SECTION 262416-

PANELBOARDS

Please verify which circuit breakers are required to have fully adjustable settings, per Panelboard Spec. Is it only breakers over 250amps?

ANSWER: Circuit breakers over 250amps.

QUESTION #108, GENERATOR DEMOLITION, DRAWING E0.01

Note #4 on E0.01 states that items to be removed and not reused shall be examined by the Owner before disposal off-site. Section 2.DD. in the Statement Of Work states that the GC shall remove and discard of the existing generator and fuel tank. Please clarify if the Owner will require will require examination of the existing generator and fuel tank prior to disposal off-site as mentioned above.

ANSWER: Yes.

QUESTION #109, MECHANICAL DRAWING E0.01

There is an item (mechanical equipment tag symbol) under the equipment legend on E0.01 that references a mechanical schedule on M6.01, and it appears this drawing was not included in the original set of plans. Please confirm the reference to M6.01 is a misprint or provide M6.01 along with any other Mechanical drawings that should have been included in the original set of plans.

ANSWER: See response to Question #41.

QUESTION #110, MECHANICAL

Please provide a specification for the new chain link fence enclosure located at the generator area as detailed on E1.05.

ANSWER: See response to Question #9.

QUESTION #111, SUBMITTAL PROCESS

Will NIH use RMS 3.0 for the submittal process?

ANSWER: No. Submittals will be sent by PDF to COR and Engineer of Record.

QUESTION #112, SOLICITATION C.6.11

What plans/documents are required in the pre-construction submittal process?

ANSWER: Material submittals are required as well as General Conditions documents such as Safety.

QUESTION #113, Financial Responsibility, SOW Sample for Bldg 10 Page 2 of 9-Z

Is it to be understood, that based on “commissioning by the Government” that the financial responsibility for such will also be the Government’s?

ANSWER: Yes. The Contractor will attend and operate the Generator for the testing.

QUESTION #114, Lift or crane plan approval, SOQ sample for Bldg 10, page 2 of 8-CC

What government entity approves “lift or crane plans” outside of KOMAN safety and with whom or through what lines of authority is approval accomplished/decided?

ANSWER: The NIH Division of Occupational Health and Safety (DOHS).

QUESTION #115, DUMPSTERS, SOW SAMPLE FOR BLDG 10, PAGE 2 OF 8-EE

Are these dumpsters free of charge to the contractor? If not, what charge is associated?

ANSWER: For this project, Solid Waste disposal/dumpsters are free.

QUESTION #116, DUMPSTER, SOW SAMPLE FOR BLDG 10, PAGE 3 OF 8-

PROJECT MANAGEMENT

Is the project manager the only required position? What qualifications are required?

ANSWER: Project Manager and Site Superintendent are required positions.

QUESTION #117, Compliance with Local Requirements, general/keynote #1 Keynote #1

Would a Maryland electrical license be required for the project in order to comply with “all local requirements”?

ANSWER: Yes.

QUESTION #118, COMMISSIONING-RFP…