RFI Questions and Answers as of 14 August 2020.pdf

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1. Plan sheet AE101 indicates Secure Perimeter with a dashed line of which some of the walls on the boundary are not called to receive new walls such as Rooms 183 West, 178 West, 180 West, 174 West and South, 186 South, 112 South, 118 North and East, 108 North, 107 North. Please confirm these walls are existing to remain. If any of these walls require new construction, please identify their wall types by amendment.

These wall will remain but will need to be modified as necessary to meet ICD 705 standards (ie.

extra layer of gypsum board, insulation, raised to decking, etc.)

2. Keynote 5 located in the vicinity of column line 1 and F on plan sheet AE101 indicates to “Lower sill of door to match concrete floor elevation. Modify grade beam foundation as required.”

a. a. Please provide an as-built drawing of the slab and grade beam condition at this location.

As-built/Shop drawings are not available at this time

b. No work shown @ foundation per 1/AE303 and 7/AE503. Please clarify and provide details .

As-built/Shop drawings are not available at this time

3. Please provide structural and civil plan detail requirements for mechanical yard slab(s)/pads, reference plan sheet AE101 between column lines A and E West of Column line 1. Please include thickness of slabs, beam locations and dimensions if any, reinforcing requirements for each and type and depth of fill required if any.

FSB Response – Concrete pads shall be constructed under all equipment within the fence enclosure of the mechanical yard. That includes equipment shown on these documents and other equipment that will be located by the Contractor within the fence enclosure. The pads shall be constructed as detailed on Detail 7/AE501. Pad dimensions shall be coordinated with the selected equipment to provide a pad 12” larger than the equipment on all sides, and the equipment yard sized to accommodate all maintenance clearances around the equipment.

4. If any new fill or base course is required under the new concrete slab shown by plan details 1 thru 4/AE305, please indicate type and thickness by amendment.

FSB Response – Provide a 6” minimum course of Class A aggregate base.

5. Please provide a basis of design manufacturer and model for the lift system, reference plan sheet AE305.

No specific model required for the lift system. Refer to Section 14 42 00 (Vertical Wheelchair Lift) for the specifications and requirements for the lift system.

6. Keynote 3 on AE101 indicates that a new chain link cover is required at 10’ AFF. What is intended by the word ‘cover’? Can a plan detail be provided?

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The intention is there will be a chain link fence above the package unit as well on top of the surrounding fence (10’ AFF) to fully enclose the Mechanical area.

7. Rooms 182 and 183 are not depicted to have ceilings on the reflected ceiling plan on AE102, but the room finish schedule indicates they receive acoustical ceilings. Please clarify which is correct by amendment.

Rooms 182 and 183 will have a 2’ x 2’ ceiling grid and have acoustical ceilings, sheet AE601 is correct.

8. General note D on F-001 indicates “Existing sprinkler system and fire suppression shall be demolished in its entirety including, but not limited to sprinklers, hangers, piping, and supports.”

A fire suppression system was not found at the site visit. Please confirm that the existing chemical or gas fire suppression system has already been removed or is no longer existing. If existing cylinders are present, please indicate their quantity, size and location on a floor plan and provide photographs.

There is no existing chemical or gas fire suppression system.

9. Plan sheet G-002 references a basement. We did not find a basement during the site visit.

Which part of the building is considered the basement?

No basement exists

10. Keynote 1 on FD101 indicates “Demolish existing wet pipe system completely from system OS&Y valve to sprinklers including, but not limited to, piping, supports, attachments and sprinklers. Cap piping at end of each main or branch line served by riser in East Mechanical Room on East side of Grid Line 7. Refer to F-001 for Wet Pipe Sprinkler System Schematic.”

Detailed Plans are not provided for rooms East of Grid Line 7. FP101 and FP501 identifies the sprinkler riser to be located West of Column Line 7 vicinity of Column line 1 / A. If there is a riser in a Mechanical Room located on the East side of Grid Line 7 and work is required in relation to this project, please provide plans identifying the location of the mechanical room and the work required by this project in relationship to this riser and it’s mains/ branch lines.

There is not an existing foam system. According to the Basis of Design in section 2.2.7.10.2: “This existing sprinkler system downstream of the wet pipe system riser will be demolished in its entirety.” “Areas east of the grid line 7 will remain as is…” There is a separate fire riser in the mechanical room on the east side of the facility (see attached photo).

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11. Please provide a photograph of the existing sprinkler riser referenced by plan sheet FD101, keynote 1.

12. Plans indicate shaded areas are outside the scope of this project. Keynote 1 on plan sheet FP101 points to a shaded area and indicates “Existing fire alarm and sprinkler system shall remain in service in all areas outside area of work.” If the existing sprinkler system East of Grid Line 7 (outside scope) is connected to the new sprinkler system provided by this project, please indicate such by providing as-built drawings or shop drawings of the existing sprinkler system showing the existing connections between these areas (Mains/branch lines, etc.).

As-built/Shop drawings are not available at this time.

13. Please provide fire protection and fire alarm as-built drawings and/ or shop drawings for the entire existing building.

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14. Please provide the site visit sign in sheets for both days (7/27 and 7/28).

Site visit sign-in sheet has been uploaded on beta.sam.gov in the attachments

15. Keynote 5 on FP101 indicates “Provide non-conductive penetration through secure perimeter, this location per ICD/ICS 705 to serve room 105 and 172.” Locations of these rooms are not provided. Please provide a plan showing these room locations if this work is required.

The rooms are in the lower area on FP101 outside the secure perimeter

16. Keynote 5 on FP101 indicates “Provide non-conductive penetration through secure perimeter, this location per ICD/ICS 705 to serve room 105 and 172.” Please provide a plan detail showing the non-conductive penetration detail.

Please reference previous question following note indicates rooms 121 and 185. This rooms are on the top corner outside the secure perimeter. No detail exists at this time.

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17. Plan sheet ES101 shows an unlabeled dashed line going from the generator to new panel HGE and also a line going from new panel HGE to the new ATS2. This doesn’t seem to be shown on the one line diagram on EP601. Please clarify one line.

EP601 shows this see below

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18. Existing gypsum board walls are not shown to be removed by the demolition plans at new M2 walls. If existing gypsum board walls are required to be removed at new M2 walls, please clarify to all by amendment.

Sheet A-001 M2 indicates that Gypsum board are to be removed. See below for additional work if stud are not 16 GA and doesn’t extend to the deck.

19. Note 11/AE101 seems to be out of place as there is no wall aligning (new wall is perpendicular to the existing wall).

This area will be demolished for new double door, meaning that walls will have to be aligned to existing wall.

20. Will a NICET level 3 or 4 designer be sufficient for the fire protection and fire alarm design of this project or will a Fire Protection Engineer be required?

Per section 21 13 13.00 10, Fire Protection Specialist will be a registered professional engineer who has passed the fire protection engineering written examination administered by the National Council of Examiners for Engineering and Surveys (NCEES) in fire protection, or a related engineering discipline with a minimum of 5 years’ experience, dedicated to fire protection engineering that can be verified with documentation.

21. We understand that the 20 lines of notes on 1/A-002 starting with “Remove” and ending with “Surface Only” applies to M2 walls only. If this is not a correct understanding, please clarify to all bidders by amendment.

Sheet A-001 talks about the partition types M2 applies staring from Remove GYP bf..” to “….Smooth painted surface”.

22. Reference 1/A-002, M6, Please clarify what is meant by “as shown above.” Confirm that this refers to the wall detail above.

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Yes, it refers to the wall details above.

23. No electrical demolition is shown at M2 walls, reference ED101 / and A-002.

See Notes on 1/A-001.

24. Are flex drops acceptable at fire sprinkler heads?

Fire sprinkles materials and installation have to be in accordance with Section 21 13 13.00 10 Wet Pipe Sprinkler System, Fire Protection. Ensure installation of any component complies with the NFPA.

25. Note 1/MD101. There is no “add price” on the Bid Schedule. Please issue a revised Bid Schedule for the requested Additive Alternate price.

No Bid Schedule will be issued. If field verification indicates, this shall be included in the contractor’s bid. This IFB does not contain additive work.

26. Reference plan detail 4/AE503: Is there carpet on risers (as shown) and no edge treatment?

Install carpet in accordance with flooring manufacturer's recommended instructions.

27. Reference plan sheet ED101. Notes 3,4,5,& 6 refer to a “boundary” which does not agree with the “secure perimeter” shown on AE101. Which is correct?

The Boundary in sheet ED101 is the existing boundary of the vault area, and the boundary on sheet AE101 is the boundary of the new secure area after. The boundaries on ED101 show the entire extent of the electrical demolition work, while the boundaries on sheet AE101 just depict the secure perimeter. They are both correct, they just outline different aspects of the project.

28. Note 6/MD101 Clarify extent of demo. Is this under the slab or above ceiling in occupied space

NIC?

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This is pipe is above the ceiling.

29. Note 8/MD 101. Roof patching is specified at plumbing vent demo. Is the roof under warranty and who is the roofer? Can we just cap the vent?

There is a manufacturer warranty by Centria that expires in Feb 2023. The vent can be capped.

30. What is the make and color of the existing brick we are to match?

There is no make or color available to provide. Brick should match existing as close as possible.

31. 5/AE503 What is the unidentified item at the wall and resting on the carpet?

I believe this is supposed to represent the cove base.

32. Note 1/FP101. How is the existing fire sprinkler system to be kept in operation? Is there a separate fire riser? No work is shown for connection of the existing system in the occupied (Not in Contract) areas.

According to the Basis of Design in section 2.2.7.10.2: “This existing sprinkler system downstream of the wet pipe system riser will be demolished in its entirety.” “Areas east of the grid line 7 will remain as is…” There is a separate fire riser in the mechanical room on the east side of the facility (see attached photo).

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33. Note 1/FP101. How is the existing Fire Alarm system to be kept in operation? Where is the existing panel and how is the occupied area fed from the panel.

According to the Basis of Design in section 2.2.7.10.4: “The fire alarm system and devices serving the existing portion of the building included in the renovated area will be demolished, while the fire alarm service will remain as existing in all other areas of the building. All new fire alarm devices in the renovated area will be connected to the new FACU.”

34. MD101 shows demo of portion of the HW Supply and Return (as identified on MP101). Will there be a need for a temporary loop to keep this system in operation?

The HW Supply and Return will be cut and the dashed area in MD101 and rerouted as shown in MP101 to loop back to the rest of the building and not into the new secure perimeter area. A temporary loop will not be required. After the pipes are reconnected outside of the secure are, the chiller piping will service the rest of the facility.

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35. ES101 New feeders are not identified. How are they run? U/G, Overhead or through existing

Bldg?

The feeders that go into the west side of the work area (previous simulator area) are fed from a transformer outside the facility to the northwest and travels underground into facility. The feeders to the east side of the work area (previous vault) is fed from the mechanical and travels in the facility above the ceiling.

36. The Plans are not sealed by Professional? Are these For Construction plans? Will permits be required from the City? If so, we will need sealed plans.

An updated sealed version of these plans and specifications will be sent as soon as possible. For bid purposes these plans can be used.

37. ET101. Verify there are NIPRNET RJ45 jacks outside the Secure Perimeter in Rooms 185 & 121.

There are no existing NIPERNET RJ45 Jacks, these will need to be installed as required.

38. Please clarify who the required controls system / contractor is for the building (JCI?).

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There is not a required control system company, however the controllers need to be able to connect to the existing front-end system which is Honeywell.

39. Please indicate who the required fire alarm system / contractor is for the building.

The fire alarm panel can be any company (the existing panels are Simplex and FCI), however the existing transceiver will be reused and is Monaco.

40. The bid form has 3 line items with no stated base bid. Please revise the bid form to provide for a total base bid line item summarizing clin items 001, 002 and 003.

A revised bid form will not be provided for this solicitation

41. The bid form has 3 line items. We understand that one contractor will be awarded at least clin line item 1 CONSTRUCTION. Want to make sure bidders won’t be awarded just line item 2 Communications or Line item 3 Contractor Manpower Reporting. If this is not a correct understanding, please clarify otherwise to all bidders by amendment.

Only one contractor will be awarded for the solicitation only.

42. Clin Items 1 and 2 refer to Attachments 1,4, 5 and 2. Downloaded documents are not labeled as 1, 4, 5 or 2. Please clarify.

Downloaded documents are now labeled

43. Request bid date extension to allow contractors time to review submitted questions and pending government answers.

Bid extension has been extended to August 21, 2020

44. Details on A-002 indicate “Provide UL Assembly HW-D-0042 to Deck.” Please provide details of a UL Assembly HW-D-0042 assembly to all bidders by amendment.

Details of UL Assembly HW-D-0042 to Deck need to be provided by contractor.

45. New files provided 30 July 2020 on Sam.gov only seem to change the pdf file name to include Attachment # references. Please confirm there are no changes in these files from the originally provided files other than the file name.

This is to confirm that there are no changes to the originally provided files other than the file name.

46. Plan details 4/AE304 at column line A and 1/AE503 at column line 1 depict the existing construction of the exterior wall as brick veneer over metal studs. If this is not a correct depiction of the actual conditions and Concrete Masonry Units (CMU) are located behind the existing metal studs, then please identify the locations of the existing CMU block within the construction areas by amendment to all bidders. There is a significant price difference between demolishing metal studs versus CMU block. We assume contract drawings are correct unless clarified otherwise to all bidders by amendment.

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These details are correct, the walls in these details are brick veneer over metal studs. Continue bid estimate assuming these details area correct.

47. Reference question 3 above. In the event the government finds that the exterior walls are brick over Concrete Masonry Unit (CMU) wall construction rather than the brick over studs construction as identified on the contract drawings, then exterior wall details 4/AE304 and 1/AE503 and others will require revision.

We assume contract drawings are correct unless clarified otherwise to all bidders by amendment.

The exterior construction is brick over studs.

48. Detail 2/AE503 adds Tube Steel Columns at the new opening in the exterior wall. Please indicate the height of the tube steel column and what it is to attach to at the top of the column. Please provide a connection detail at the top of the column.

No plan detail is available at this time.

49. Please provide structural as-built drawings for the portion of the building to be renovated.

50. It is our understanding that all existing furniture, moveable cabinets, shelving, etc. will be removed by the owner prior to construction. If this is not a correct understanding, please clarify otherwise by amendment by identifying which furniture, shelving items are to remain so that the disposal of these items can be quantified.

Government will remove all existing furniture prior to construction

51. M2 does not seem applicable at exterior walls. M2 wall type is shown on A-002 at an exterior wall that remains, we assume only the accessible interior of the building side will have the gypsum board replaced and that top and bottom tracks will not be replaced. If this is not a correct understanding, please clarify otherwise with a revised plan detail that works for these locations.

Only the controlled side of the existing wall will have the gypsum board replaced. However, if during construction, the existing metal studs do not meet ICD 705 requirements (16 ga. / full height), they will need to be replaced/altered and top/bottom tracks may need to be replaced.

52. M6 wall does not seem applicable located up against an existing wall to remain. There is not sufficient space to get the gypsum board installed in the few inches provided up against the existing wall (with the detailed wall system). Assume only one side of the new metal stud will get gypsum board at this location.

Please indicate number of layers required on this side. If this is not a correct understanding, please clarify otherwise with a revised plan detail that works for these locations.

No M6 wall exists, not sure which wall this is referring to. Please refer to ICD 705 standards for number of layers of gypsum board. There is a detail that answers this.

53. M2 wall does not seem applicable at existing to remain interior walls between the renovated area and the Outside Scope of this Project Areas. For example, Reference room 117 East wall. M2 designator is used on the room’s side of the wall and on the other side of the wall which from the site visit we saw this wall covered with limestone rock from floor to ceiling. As this wall is indicated to be existing to remain, we

14 | P a g e understand that the limestone rock wall and all walls in the ‘Outside the scope of this project’ area are existing to remain with no work to be done to them. If this is not a correct understanding, please clarify otherwise with a revised plan detail that works for these locations as well as photographs of outside of scope areas which require work.

The existing walls along the east side of the work perimeter are metal studs with gypsum board on the side to be renovated. The existing restroom has ceramic tile 9 feet up to the gypsum board ceiling will be removed, the rest of the walls are gypsum board. The opposite side of the walls along the east perimeter will remain untouched.

54. M2 wall does not seem applicable at existing to remain interior walls. Where M2 is used at interior walls to remain, what is the intent or scope of work required at these walls? Is it to only remove s/r one side of studs, add batt insulation and reinstall 2 new layers of gypsum board on that side? Or only to add another layer of gypsum board to each side? Is work required on one side only or both sides? Assuming we are not replacing bottom and top track on a wall shown to be existing to remain as that would require the wall to be removed. Please clarify what is intended at these walls with a revised plan detail.

The intent is to remove one side of gypsum board (west side) and batt insulation, then install new insulation, and two new layer of gypsum board on that side. Work is only required on one side of the wall.

Assuming metal studs meet ICD 705 standard, there is no need to replace top and bottom track.

55. M1 thru M7 walls are called out to be 16ga studs on detail 1/A-002 and no thinner than .0329 inch thickness by paragraph 2.1.1.1 of specification section 09 22 00. Manufacturer Clark Dietrich indicates the ProSTUD 30 with thickness of .0312 is engineered to allow it’s use up to 18’-6” with specified deflection criteria of L/240 and spaced at 16”o.c. per paragraph 2.1.1.1. This allowable height exceeds the height requirement of 17’-4” per plan detail AE305. Confirm this stud is acceptable for use at M1 thru M7 walls with gypsum board on each side per manufacturer’s published tables in lieu of 16 ga. Similarly confirm that Clark Dietrich 3 5/8” 33 mil and 43 mil Structural Studs with allowable heights greater than 17’-4” are acceptable for use on this project for where gypsum board is only on one side. See attached allowable wall height tables for reference.

The height between the foundation and concrete decking is 17’-4” on the ground floor level (existing vault area), there is no need to install a stud with any greater length. A 16 ga. Stud with a minimum thickness of .0329 inches will support the three layers of gypsum board required (two on one side and one on the other).

56. M2 wall indicates that bidders are to relocate in-wall power and communications to be surface mounted.

If new interior studs are not required to be added at M2 walls, will power and communications still need to be relocated to be surface mounted?

The studs in the M2 walls will remain, however, the layout inside the working perimeter will change and require the power and communication outlets do be relocated per drawings and specs.

57. Please clarify wall type for Auditorium Room 179 East and South. Assumed to be A1 unless clarified otherwise per General Note D on AE101.

M1 is correct wall type.

58. Please provide additional plan details for the stoop located outside of the elec room 185 to include thickness of the stoop, dimensions of any beams (if any), reinforcing requirements, whether or not cast in place nosings are required at steps and whether it requires any base course under it and if yes depth and type of base course required.

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No plan details or dimensions are available at this time.

59. If cast in place nosings are required at new interior steps, please provide a plan detail showing requirements.

60. If any wall mounted rails are required at the stoop outside the elec room, please clarify with revised plan details.

61. Bid form contains 3 bid items without a summary total base bid line. Is it possible that the government will award only CLIN 0001 Construction or ONLY CLIN 0002 Communications? If yes, then contractor must include general conditions and overhead in both CLIN 0001 and CLIN 0002 bid items to cover our costs in the event government only awards one, which increases the cost to the government. If government will award all clins to one contractor then the general conditions and overhead can be split between line items, decreasing the cost to the government. Please indicate by amendment whether or not the government will be considering awarding only clin 0001 or 0002 to a contractor or if all clins will be awarded to one contractor.

The Government will award one single contract, which includes all 3 CLINS on this requirement and will only be awarded to one Prime Contractor.

62. CLIN item 0003 Contractor Manpower Reporting indicates to provide a price to fill out all the information in the forms on the following website: https://ecmra.army.mil/. As of this morning, the website is not a valid website. See below error message from the website. Please provide any applicable information for contractors to price the line item.

Contractor Manpower reporting is scheduled to transfer from eCMRA to SAM. You may have already noticed that eCMRA has been decommissioned. Reporting in SAM will use the same data elements and timing (still Oct 31) identified in the FAR clause. Currently, SAM does not have manpower reporting capability. A pending DFARS case is scheduled to be finalized the end of FY20.

https://ecmra.army.mil/

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63. Requesting additional time to review plans and specifications and to ask additional questions we may have on the bid.

An amendment to extend bid time has been executed.

64. Solicitation indicates working hours to be Tuesday thru Friday between 6:30am to 5pm. Please confirm that contractors will also be able to work on Mondays between 6:30am to 5pm.

The solicitation correctly depicts the standard working hours Tuesday thru Friday. The government should be able to allow work on Mondays but this is not guaranteed.

Please see the following electrical questions which reference drawings ES101, ED601, EP101, EP102, EP601, EP701, EP702, EP703, EL101, ET101, ET501, M701 and M-803 and specification sections 14 42 00 and 26 36 00.00 10.

65. Sheet ES101, Detail 1, shows a Keyed Note 2, which says to demo the feeder from the existing 80kW generator to the existing ATS1. Sheet ED601 (Existing) One-Line, Keyed Note 36 also says to demo the existing feeder. Sheet ES101, Detail 2 shows a new revised route shown from the generator to the new panel HGE and an added feeder from panel HGE to new ATS2, located inside the building in Electric 185.

Sheet EP601 (New) Electrical One-Line shows a new feeder #16 from the existing 80kW generator to the new panel HGE, as well as a new feeder #16 from new panel HGE to new ATS2. Are we to intercept the existing underground conduit currently routed from the generator to ATS1, reroute it to new panel HE and provide new conductors, or do we furnish a completely new underground feeder continuous from the generator to panel HE? The conduit and conductor sizes for the existing feeder from the generator to ATS1 is not provided. The new feeder #16 is shown to be 4-#1 & 1-#6 EG in 1-1/2” conduit. Will this match up with the existing feeder? For the new underground feeder from panel HE to new ATS2, how are we to transition the feeder when entering the building? Do we install a pull box on the exterior of the building and route the feeder through the perimeter wall, or sawcut and remove/replace the floor of Electric 185 to install this feeder to ATS2?

The contractor will demo the existing feeders mentioned and furnish a completely new underground feeder continuous from the generator to panel HE with new properly sized conduit. The contractor can install a pull box on the exterior of the building and route the feeder through the perimeter wall.

66. Sheet EP601 (New) Electrical One-Line, Keyed Note 14 indicates adding a new 100A 3P circuit breaker in available space of existing panel MDP. Please provide a catalog number or type of circuit breaker, including required AIC rating for this circuit breaker, whether connecting hardware is required to connect this circuit breaker, or provide photographs for this information.

The circuit breaker installed must meet specifications, model is not specified.

67. Sheet ED601 (Existing) Electrical One-Line, Keyed Note 22 indicates a 45A 3P circuit breaker to be marked as a “spare” in existing SWBD. Sheet EP601 (New) Electrical One-Line shows an existing 100A 3P circuit breaker in the same location to serve new ATS2. However, sheet EP701, Switchboard SWBD schedule indicates a new 100AF 100AT circuit breaker to be added for this feeder to ATS2. Please clarify if this circuit breaker is existing or to be added. If this is to be a new circuit breaker, please provide a catalog number or type of circuit breaker, including required AIC rating for this circuit breaker, whether connecting hardware is required to connect this circuit breaker, or provide photographs for this information.

A new circuit breaker is to be added for this feeder to ATS2, however we do not have a catalog number or type of circuit breaker.

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68. Sheet ED601 (Existing) Electrical One-Line, Keyed Note 22 is used at existing panel X (to be relocated and renamed panel H1E) to indicate one 100A 3P and two 150A 3P existing circuit breakers to be marked as “spare”. Sheet EP601 (New) Electrical One-Line shows one existing 100A 3P circuit breaker to be used to serve existing panel 1H1E and one existing 30A 3P circuit breaker to be used to serve new transformer TE.

Sheet EP702, panel 1HE schedule shows these two circuit breakers in spaces 1, 3, 5 and 2, 4, 6. However, the other two 150A 3P “spare” circuit breakers shown on ED601 are not shown on the panel 1HE schedule. Please clarify if the 30A 3P and 100A 3P circuit breakers are currently available for use and where the two 150A 3P circuit breakers are located within panel 1HE.

“Regarding Panel 1H1E (Panel X), there are two 100A 3 pole breakers and two 150A 3 pole breakers that are to remain. The two existing 150A 3 pole breakers are to be spare breakers, and one of the two existing 100A 3 pole breakers is to be a spare breaker. The other existing 100A 3 pole breaker is to be used to serve the feeder for Panel 1H1E. In addition, the 30A 3 pole breaker shown as serving the primary of Transformer TE on Sheet EP601 shall be considered as a new breaker. This new 30A 3 pole breaker shall be appropriate for a Square D Type NQ Panelboard and shall have a minimum KAIC value of 30 KAIC. Contractor shall field confirm prior to ordering material.”.

69. Sheet EP702, panel 1HE schedule shows the existing 350A 3P MCB to be replaced with a 100A 3P MCB.

Please provide the Manufacturer, catalog number or type of main circuit breaker, including required AIC rating for this circuit breaker, or provide photographs for this information.

The circuit breaker installed must meet specifications, model is not specified.

70. Sheet EP703, panel 1LE schedule shows Circuit 6 for the Wheel Chair Lift as a 20A 1P circuit breaker.

However, the specification for this lift (14 42 00) states the power supply is 25A at 115V. Should the circuit breaker be changed to 25A 1P, or possibly 30A 1P?

Yes, the circuit breaker should be changed to meet the power requirements of the lift.

71. Sheet EP703, panel 1LE schedule shows Circuit 13 for Heat Trace as a 20A 1P circuit breaker. However, sheet EP102, Keyed Note 1says to provide a GFI breaker for the heat trace circuit. Should the circuit breaker for Circuit 13 be changed to 20A 1P GFCI?

Yes, the circuit breaker for Circuit 13 should be changed to 20A 1P GFCI.

72. Specification 26 36 00.00 10-Automatic Transfer Switch and Bypass/Isolation Switch does not provide some information required to correctly determine the new ATS2. Please clarify if ATS2 is to be Open or Closed Transition, the full current rating of the ATS, the fault current withstand rating ()AIC) and whether the ATS requires ground fault protection. Also, provide information as to the overcurrent protective device at existing 80kW generator as far as trip rating and the fault current withstand rating (AIC) of the overcurrent protective device.

ATS2 shall be a 480/277V 3 phase 4 pole 100A open transition automatic transfer switch with a 30KAIC short circuit rating. The generator power serving ATS2 arrives via a 100A 3 pole breaker in Panel HGE.

This breaker should have a 25KAIC minimum short circuit rating. The size and rating of the generator’s onboard breaker is not confirmed at this time.

73. Sheet ES101, Keyed Note 10 references a “new 3” routed from Comm Room 143 to Comm Room 173 for secured cabling” and to “follow Red and Black requirements for pathways”. However, drawing sheet ET101, Keyed Note 4 says “new 2” routed from Comm Room 143 to Comm Room 173 for secured

18 | P a g e cabling”. Which conduit size is correct? Also, please clarify what “Red and Black requirements for pathways” are.

The conduit will be 3”. “follow Red and Black requirements for pathways” refers to segregating sensitive classified information “SIPR” in red wiring, from unsecured “NIPR” in black.

74. Sheet ET101 shows twelve (12) locations symbols for 2x2 grid plates for ceiling projectors in various rooms and the symbol for these are described on sheet ET501, Detail 5. This detail indicates the 2x2 grid plate has an opening for a HDMI plate roughin as well as a duplex receptacle roughin for the projector.

However, drawing sheet EP101 does not show any receptacles or circuiting for any power for projectors in the ceiling. Are receptacles needed for these projectors? If so, provide circuiting requirements.

Yes a receptacle would be necessary, please refer to individual rooms; i.e. EP101

75. Sheet ET101 shows nine (9) locations where there are access control devices at various doors. However, there is no detail included in the drawings for what is required for conduit or box roughin at each of these different locations. Please provide additional details as to these requirements. Also, clarify if the roughins are to be surface mounted or flush mounted at these locations.

Door schedule AE601, details various requirements for each opening. A security block diagram “2” – (BMS) is provided on drawing ET601. Surface mounted is preferred.

76. Sheet EP101, Keyed Note 7 says to “coordinate power connections in Comm Room 173 and Security Console Room 118 to supply an L5 and L6 connection for UPS power requirements”. However, the Power Plan does not indicate these devices. Please clarify where these are to be located, how many in each room and provide the amperage and circuiting information for these additional power receptacles.

This question will to be forwarded the user and an answer will be provided as soon as possible.

77. Sheet EP102 seems to indicate that the only separately mounted safety disconnect switches required to be provide and installed ahead of the equipment starters or controllers are for the two Boilers and the two Hot Water Pumps. Mechanical specifications and Mechanical Schedules on sheet M-701 require all other equipment to be provided with factory installed disconnect switches. Are these four items the only ones that will require disconnect switches to be provided and mounted by the EC? The VAV Box Schedule does not mention factory installed disconnect switches, yet the HVAC Power Plan shows a symbol for a disconnect switch furnished with the equipment at each VAV box location. Will EC provided disconnect or toggle switches be required at each VAV box, or will the VAV boxes include disconnect switches?

Specifications section 2.10.4 states “NEMA KS 1. Provide heavy duty-type switches where indicated, here switches are rated higher than 240 volts, and for double-throw switches. Utilize Class R fuseholders and fuses for fused switches, unless indicated otherwise. Provide horsepower rated for switches serving as the motor-disconnect means. Provide switches in NEMA 1, 3R, enclosure as indicated per NEMA ICS 6.”

78. Sheet EL101 shows locations for ceiling mounted occupancy sensors for lighting control. These devices are specified on sheet EL601 to be Hubbell Omni-DT-2000 (or equal), which are single relay sensors.

Mechanical sheet M-803, Detail 1 (VAV Terminal Box Control Diagram) have notes that these space occupancy sensors are also to provide a signal to the DDC system for control of the terminal boxes. It references sheet EL101 for sensor locations. In order to accomplish this with the same sensors controlling the lighting, these ceiling sensors would have to be changed to Hubbell Omni-DT-2000-RP (or equal), which have an additional relay and photocell. Please clarify if these lighting control detectors should change, or if the controls should use different sensors for control of the terminal boxes.

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The controls should use different sensors for control of the terminal boxes.

79. The PWS section 4.4 states that a 24 strand single mode FOC is to be installed from Rm. 143 to Rm. 173. On page ET601, detail #1 the riser diagram shows (2) 12 strand single mode FOC’s are to be installed from Rm. 143 to Rm. 173. Can the government please clarify which is required?

24 Strand SM FOC will be required since only one cable will have to be installed rather than 2.

80. PWS section 4.4 states the last two panels of the fiber enclosure have been reserved. Please confirm that a new FOC enclosure is not required within Rm. 173.

Confirmed there is not a requirement for a new FOC enclosure within RM 173.

81. Sheet ID ET601 Detail #1 Riser Diagram shows a 100pr multi-pair copper cable from RM. 143 to Rm. 173 but the PWS section 4.5 states that a 50pr Cat3 multi-pair backbone cable is to be installed between the communication rooms. Can the government please clarify which is required?

50 pair

82. Sheet ID 501 Detail #3 “Typical Wall Faceplate Detail – SIPRNET” show (2) Red Cat6 cables are to be installed. Will the contractor be required to provide a Keyed Cat6 connector at the wall plate?

All SIPR shall be fiber.

83. PWS section 4.8 states the contractor will utilize newly installed cable trays, pathways, conduit, and j-boxes previously installed. Please confirm that new pathway infrastructures will not be required with this task order.

We would like to use existing cable trays where available, i.e. from rm 143 to 173. But this is a complete overhaul on the area so existing cable trays may not be available. In this case it would be required to run cable trays from vault CR down each hallway and then branch the cables off from the cable tray into the offices.

84. PWS section 4.9 states “the following cable colors shall be followed: green for voice & data and red for fiber optic cable”. Will all SIPRNET locations require only fiber optic cable, or will some SIPR locations require Cat6? If Cat6 is permitted, should the contractor provide a screened cable

(ex. U/FTP, F/STP)?

Our standard is to use blue CAT 6 cabling for NIPR data & voice and yellow for Single mode FO cables.

There can be no RED cables unless it is unencrypted SIPR lines. In which case it would have to be visible in an approved secure location or pulled within a dedicated continuous steel conduit if within a drop ceiling.

85. PWS section 4.10 states a CATV receiver, and F Type splitters will be installed. Will the contractor be required to furnish and install the CATV active equipment?

Yes

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86. Sheet ID ET101 shows multiple projector, access control, intrusion, Building Automation, and wall phone locations. Will the contractor be required to furnish and install the cabling for these systems? Or is the contractor to provide what is detailed within the PWS?

Yes, Detailed in Specification, 2.3, 2.3.6 Additional components as required for full functionality, alarm wiring detailed in 3.2.3

87. PWS section 4.9 states the sloped faceplates will be installed. Will angled physical contact (APC) fiber connectors be required for all fiber optic cable locations? Or will the fiber connectors used for the task order be ultra physical contact (UPC) type?

IAW Specifications, 2.3 Telecommunications: Cabling shall be UL listed for the application and shall comply with TIA-568-C.0, TIA-568-C.1, TIA-568-C.2, TIA-568-C.3 and NFPA 70. APC fiber connectors shall be required for all fiber optic cable locations.

88. If keyed connecting hardware is to be deployed per the plans, which manufacturer (corning, commscope, Panduit) keying will be required?

Hardware: https://www.islslocks.com/scif-door-locks or other brands make something that meets ICD- 705.

89. For estimating purposes, shall the contractor utilize the PWS or provided plans when executing a takeoff?

The contractor should adhere to the documents in the following priority order for bidding: Specifications, drawings, then PWS.

90. Can/will the government provide a sign-in sheet of all contractors who attended the pre-bid site visit?

Sign-In sheet has been uploaded in beta.sam.gov.

91. That is the Transceiver that transmits a radio signal to the Base Monaco D-21 Fire Alarm Monitoring Station. The Fire Alarm Panel will be different. I’m looking for a Manufacturer such as: Simplex, FCI, Gamewell, Ceberus Pyrotronics, SIEMENS, Notifier, Silent Knight, FireLite, etc..I need to know because the Fire Alarm Riser shows the two system networked via Fiber Optics, so they have to be of the same manufacturer

The Fire Alarm Panel that the new system will connect to is a Simplex panel, and can be found at the main building entrance. The new FACU needs to be able to connect to this existing panel through the fiber interface.

92. General note C on AE101 indicates to refer to Life Safety Plan and details G-003 for fire extinguisher and cabinet locations. None shown on Life Safety Plan G-003. If any fire extinguisher cabinets and/or extinguishers are required, please indicate locations by amendment to all bidders.

Will contact A/E. For bid purposes estimate how many fire extinguishers is required per regulation.

https://www.islslocks.com/scif-door-locks

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93. Detail 2/AD101 shows keynote 1 underneath the double doors and indicates “Existing Wall to be

Demolished.” What type of wall is to be demolished under the door opening? Please provide plan details.

The floor that is to be demolished is a concrete wall. Approximately 8” thick.

94. Sawcut and demolition/modification of the existing grade beam required at new door 183A by keynote 5 on new floor plan AE101. If there are other locations or other door openings where this is required, please indicate additional locations by amendment to all bidders.

Doors 121A, 183A, 178B will be lowered to match the concrete floor elevation.

95. Keynote 13 on plan sheet AE101 states “The contractor must verify the grade elevation of the existing sidewalk and adjust the number of steps according to the existing grade.” ??? Please confirm contractor can rely on the design provided for bid purposes.

Yes. For bid purposes the contractor can rely on the designs provided.

96. Reference 2/AE201 and 1MH101. If new duct openings at existing wall will require lintels for support, please provide plan details showing requirements.

Lintels are required but no details are available at this time.

97. Keynote 6 on AE201 identifies the cover at mechanical yard as chain link. No design has been provided for the chain link fence or the chain link cover. Concerned about chain link cover being able to span the distance of the mechanical yard. Please provide fence details showing fence post size and spacing requirements and chain link cover framing member size and spacing requirements.

Chain Link cover at 10’-0” + AFF. Actual span distance of post size and spacing requirements need to be determined based on mechanical unit installed and the manufacture recommendations.

98. Detail 1/AE303 identifies a B5 wall. B5 wall is not provided for on the wall partition plan sheet A-002.

This location appears to be an existing wall. If any work is required to be done to the existing wall above new door as shown on detail 1/AE303, please clarify to all bidders by amendment.

Please reference Detail 1/AE503 Head detail.

99. Plan detail 4/AE401 (lower level) seems to have a wall opening depicted at room 104 Steps North which would seem to conflict with the steps. Same location also has a wall designation of M7 wall which requires 3 layers of gypsum board. Same location at ground level, detail 2/AE401, has a wall designation of M1 wall which has 4 layers of gypsum board??? Please clarify if there is a wall opening here and verify wall type this location.

No opening on this area see below:

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100. Keynote 11/ED101 states “CRAC unit to be salvaged and turned over to Contracting Officers representative.” Please confirm this item is salvaged to owner and not disposed of. If salvaged, please confirm that owner will take possession of the CRAC unit and delivery is not required.

The keynote is incorrect, the CRAC Unit will be removed and properly disposed of by the contractor.

101. Keynote 13/ED101 states “UPS unit to be salvaged and turned over to Contracting Officers representative.” Please confirm this item is salvaged to owner and not disposed of. If salvaged, please confirm that owner will take possession of the UPS unit and delivery of the UPS unit is not required.

The keynote is incorrect, The UPS Unit will be removed and properly disposed of by the contractor.

102. General note D indicates “Ceiling mounted projectors shall be installed in each briefing room and auditorium…” Are the projectors Government Furnished and installed (GFGI) or Contractor furnished and

Installed (CFCI)? If CFCI, please provide a basis of design manufacturer and model# or a specification for the ceiling mounted projectors by amendment to all bidders.

The projector will be government provided and installed by the contractor.

103. If ceiling mounted projector brackets are required to be provided and installed, please provide a basis of design or a specification by amendment to all bidders.

Projector brackets will be purchased by government and provided to contractor

104. Wall types M2, M4, M7 on A-002 refer to the ‘controlled’ side and ‘uncontrolled’ side. What is meant by controlled and uncontrolled sides?

The controlled side means construction standards must adhere to ICD 705 requirements. I.e. Only the controlled side of the existing wall will have the gypsum board replaced, sound proofing requirements, metal studs requirements (16 ga. / full height), etc.

105. M2 wall on A-002 states “Remove all electrical and communication conduit and outlets from wall cavity…” and “All electrical and communication conduit and outlets to be surface mounted on the controlled side

23 | P a g e of the wall.” This electrical work does not seem to be depicted on the electrical plan sheets. If this electrical work is required, please revise electrical power and communication plans to reflect the work required by this note on the architectural partition types plan sheet.

The following General Note 'C' should be added to Sheet E-001:

“C. These Contract Documents generally prescribe the design intent for work required to relocate existing electrical raceways and back boxes and install new electrical raceways and back boxes so that these components are not located inside the SCIF perimeter partitions (any “M” partition types) or in any interior SCIF partitions (any “M” partition types) that are constructed for the purpose of SCIF compartmentalization. Conduit and back boxes, including associated wiring and devices, shown at SCIF partitions shall be surface mounted as required by ICD 705. If the device serves the “controlled area” side of the wall, then the conduit and associated boxes shall be installed on the “controlled area” side. If the device serves the “uncontrolled area” side of the wall, then the conduit and associated boxes shall be installed on the “uncontrolled area” side. All raceways and back boxes that are exposed shall be painted to match the adjacent partition color. All bidding Contractors are encouraged to visit the site prior to the bid in order to aid in development of their bid for this portion of the Work.”

The following General Note ‘F’ should be added to Sheet AE101:

“F. All surface mounted electrical devices and raceways shall be painted to match the adjacent partition color.”

106. Specification 09 90 00 Paints and Coatings paragraph 1.3.2 SSPC QP 1 Certification requires a special certification by the Society for Protective Coatings (SSPC QP1). This certification is applicable to Complex

Industrial and Marine Structure projects such as off-shore drilling and petro chemical plants per SSPC website: https://www.sspc.org/qp-programs/ . As this project is a commercial interior remodel and not industrial and marine, the SSPC QP1 is not applicable and we understand it will not be required. If this is not a correct understanding, please clarify otherwise to all bidders.

This certification is not required for this project.

107. Specification 09 90 00 Paints and Coatings paragraph 1.10.3.1.a Piping in Finished areas requires fire sprinkler pipe in finished areas to be painted. It also requires red enamel bands or self-adhering red plastic bands spaced at 20’ intervals throughout the piping system. We understand that fire pipe is only required to be painted where it is exposed and the room is required to be painted such as the mechanical room. If this is not a correct understanding, please clarify otherwise to all bidders.

The pipe is only required to be painted in exposed finished areas.

108. The statement of work states in paragraph 4.1 “The Contractor shall renovate the simulator area and operations vault space in building 917 to meet the standard of the Intelligence Community Directive (ICD)

705, version 1.3 in accordance with applicable codes and references, project specifications, drawings, and basis of design. 4.2. If discrepancies are found between various codes or construction documents, the order of precedence is as follows: 1. Applicable Codes and References 2. Architect and Engineer Project

Specifications (Attachment A).” We understand that this is not a design-build project and the contractor is not responsible for the design portion of this project and that the contractor is to bid per the designed plans and specifications issued. If this is not a correct understanding, please clarify to all bidders by amendment.

https://www.sspc.org/qp-programs/

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That is correct, the contractor is not responsible for the design. This is a Design-Bid-Build Project. We obtained the Design and Specifications from a separate AE Firm, and are using them to construct this project.