RFI Responses.docx

610-16-104 Upgrade Emergency Power B138 RFI Log / Responses

Addendum Items:

· Code review response letter

· Specs

· List of drawings – updated to include new drawings

· 013426 (reprinted) – printed with comments in published spec

· 081113 hollow metal frames – revised to omit blast doors

· 873623.13 blast doors – new spec for blast doors

· 072727 Waterproofing – added in response to RFI

· 087100 hardware – revised for blast doors

· 211313 Wet-Pipe Sprinkler Systems – new with adding sprinkling

· 220533 Heat Tracing for Plumbing Piping – new for sprinkler

· 220711 Plumbing Insulation – new for sprinkler

· Updated 2632213 generators – NFPA per code response

· 331000 Water Utilities – new with adding sprinkling

· Delete specification 32 31 13 Chain Link Fences and Gates (note construction fences are specified in 01 00 00)

· Delete specification 32 31 40 High Security Fences and Gates

· Drawings:

· Updated cover sheet – to include new drawings

· Updated G001 – additional code information

· Updated G002 – additional code information

· Updated CU102 – finalized hydrant information

· New CU103 – finalized hydrant information

· Updated 194AS-101 – revised door location

· Updated 194AS-302 – updated firewall details

· New 194FP-101 FIRE PROTECTION PLAN – new with adding fire protection

· Updated 194MH-102 – Change tank fill pipe from 4” to 3”. Add silencer support note.

· Updated 194MH-602 – Change heaters from 7.5 to 10kW. Intake louver size correction and note revisions.

· Updated 194MH-604 – Change tank fill pipe from 4” to 3”

· Updated 194E-002 - Added 20A breaker for EMSC Meter.

· Updated EE001S – Added Scale.

· New EP002S – New sheet to show existing conduit path.

· Updated EE100 – Added callout for Bldg. 138 electrical room.

· Updated EE101 – Added EMCS routing to Bldg 127.

· Updated EE401 – Added Bldg. 138 plan.

· Updated EP001S – Revised site plan to coordinate with utility requirements – clarified contractor responsibility and moved metering cabinets. Added manholes outside of building due to relocation of metering.

· Updated EP201 – Deleted automatic transfer switch and control transformers.

· Updated EP401 – Provided transformers and ATS due to size limitations of transformer within MV gear. Relocated MV gear to accommodate additions. Revised plan due to site plan changes.

· Updated EP601 – Added feeder size to incoming feeds. Deleted load bank connection. Added transformers and ATS external to gear due to size limitations of transformer within MV gear.

· New 194EL-100 – missing from bid set

· Updated 194EP-100 - Revised panelboard and data rack location. Added EPO switch. Revised unit heater wire size.

· Updated 194EY-100 - Revised communication ductbank location. Added scale to drawing.

· J&S attachment

RFI 01 – 10/16/2020

Spec section 05 12 00 1.5 Quality insurance A. and B. State AISC Quality Certification participant AISC certified. Can this requirement be removed for this project? Please advise.

Response: No, it may not be removed due to PSDM requirements.

RFI 02 – 10/21/2020

Please verify what fuel oil piping is to be installed in a dual wall containment system. Spec section 23 10 00 – 9, 2.4 refers to the type of pipe but does not call out for containment pipe. Spec section 23 10 00 – 10, 2.5 leak detection system, C, sensors paragraph 3 spells out for a leak detection to be installed in the piping system.

Response: Fuel piping is single wall. No containment pipe. Leak detection shown on piping is line leak detector type.

RFI 03 – 10/12/2020

Various spec sections reference 01 91 00. There is no 01 91 00 in the specs. Please Advise.

Response: Delete specification 26 08 00 – should not have been included. This is the specification that references 01 91 00.

RFI 04 – 10/30/2020

1. Drawing EP001S note 15 & 16 show new preferred and alternate utility service feeders. Please clarify the following:

a. Is this bid package just responsible for the duct bank/manholes and the utility will pull conductors?

i. If so, will the utility pull temporary feeder (Note 21)?

ii. Who is responsible for terminations?

iii. What is utility proving (metering cabinet, new pole, etc.)?

b. If the conductors are in this package, please clarify size.

Response: We have the following info from the utility (I&M). My commentary is in red.

I&M plans to install primary metering cabinets for each of the (2) 12KV services. The metering cabinets will be located near the existing metering poles/ points of service.

Drawings have been revised to show cabinets near poles. Poles provided by utility. Manholes have been added where metering cabinets were previously located.

I have requested specifications on the metering cabinet(s). I will provide those once I have received them.

The secondary bushings of the metering cabinet(s) will be the point of ownership for the services. The contractor for the VA will install the load-break elbows on the secondary side of the cabinet. If the cabinets require a concrete pad those pads would be the responsibility of the contractor as well. Contractor to provide concrete pad per construction documents. Drawings have been revised to show this information.

The metering cabinets may have up to (2) secondary bushings per phase.

The service conductors from the secondary side of the metering cabinets will be owned by the VA and installed by the VA electrical contractor. The number and size of conductors installed are at the customers discretion, as long as they meet NEC requirements, and can be connected to the (2) bushings per phase of the metering cabinet. See revised single-line for incoming feeder.

2. Drawings EE001S and EP001S do not have a scale listed. Are these drawn to scale? If so, please provide what scale to use.

Response: Refer to revised plans for scales.

3. Drawing EP401 shows a new branch panel board being installed. Please provide a size for panel P1SG.

Response:

Panel P2SG is a 400A MLO panel. Refer to revised single-line in drawings. Transformer configuration has been revised – no longer within gear. See revised drawings for new configuration.

4. EP601 note 1 says to provide a temporary tie between switches J & S. Please clarify if conduit is required or if cabling can be laid along ground.

Response: If duration is less than 3 days, cabling can be laid along ground. Personnel barriers shall be installed around area.

5. Switches J and S can not be located on the map. Please provide a location for these.

Response: Switches J and S are located outside of building 175. See attachment for reference. Exact switches shall be confirmed in field with campus facilities prior to any work.

6. On EE401 on the enlarged drawing for building 124 there is no EEDP panel. On EE601 the panel is shown. Is the EEDP panel part of building 124?

Response: Panel EED is shown on sheet 138EP-100. It is not a part of the EMCS system.

7. There is a room detail for building 127 on EE601 but there is no pathway shown on EE100. Is this building part of the bid package?

Response: Building 127 to be included. Routing shown in revised plans. Confirm exact location of telephone room with VA.

8. There is no enlarged room detail for building 138 on EE401. Is this room detail being provided?

Response: Location of room shown on EE100. Enlarged room detail shown in revised plans.

RFI 05 – 10/30/2020

1. Is this project sales tax exempt?

Response: Tax Exemption Certificate provided

2. Will the government accept the use of the industry leading Procore Project Management software as the primary submittal and data tracking tool for this project?

Response: Yes

3. Who is the current fire alarm servicer for coordination and modifications?

Response: Seimens

4. Who is the current DDC system servicer for coordination and modifications?

Response: Havel Bros

5. Who is the access control system servicer for coordination and modifications for new card readers?

Response: Stanley

6. As a result of the effect of COVID-19 throughout the U.S., and the resulting Federal, State and local governments’ responses / requirements of safe distancing and potential advocations of working remotely and/or complete organization closures, please advise how the Government intends to address delays resulting there as it pertains to the current solicitation schedule for this and all future projects.

Response: VA to respond

7. Is AISC (American Iron and Steel Certification) required for the structural steel fabrication and/or erection for this project?

Response: Yes.

8. Is there a manufacturer approved or Basis-of-design by the VA for the 07 40 00 – Siding Panels?

a. We were talking to some panel manufacturers and they Proposed the Designwall 2000 as a substitution. Can VA confirmed if this system would be an approved option.? See attached Cutsheet for review.

Response: Centria Versawall is basis of design. Designwall 2000 would be acceptable.

9. Is there a manufacturer approved or Basis-of-design by the VA for the 26 36 23 – Engine Generator?

Response: Kohler

10. Please confirm id a qualified superintendent will be allowed to serve as the SSHO on site?

Response: VA to respond (FFE, based on our understanding this is acceptable)

11. Please confirm if there will be a layer or Sealer/ damp roofing / moisture barrier applied to the CMU behind the Metal Panel?

Response: Yes – provide per attached SECTION 07 27 27 FLUID APPLIED MEMBRANE AIR BARRIERS, VAPOR RETARDING

12. G002

a. The Amd #1 released the Utility plan showing new 8” fire main coming into the bldg, Is there a specification for this trade?

Response: See updated drawings CU102 and CU103.

See attached Water Utilities Specification 33 10 00.

b. The life safety plan is listing this building as non-Sprinkled. Will that new 8” fire lane terminates outside of the bldg.?

Response: See new drawing 194FP-101 FIRE PROTECTION PLAN and Specification Section 211313 Wet-Pipe Sprinkler Systems

RFI 06 – 11/02/2020

1. EE001S & EP001s Please provide scale of the drawings.

Response: Refer to revised drawings for scale.

2. Building 194

a. Please provide fixture and circuitry layout.

b. Please provide fire alarm layout.

c. Please provide fixture schedule.

Response: Light fixture schedule and plan are shown on sheet 194EL-100 issued as part of this addendum

3. 194EY-100

a. Please provide scale of the electrical site communication plan.

Response: See revised drawings.

4. 194EP-100

a. Please provide panel schedule for Panel “P1SG”.

b. Please provide feeder information. Where is panel feed from and conduit and wire size.

Response: Panel P1SG is shown on sheet 194EL-100 issued as part of this addendum. Change main breaker to 200A. Panel is fed from the switchgear. Transformer located in the gear. 4# 3/0 AWG, #6 grnd. 2” C.

5. EP401

a. Please provide conduit & wire sizes from the Battery System to the MV Switchgear.

Response: Battery system requirements will be coordinated with selected manufacturer.

6. 138E-004

a. Please provide conduit & wire sizes from the 600A ATS to New ATS-EEDPA.

b. Please provide conduit & wire sizes from the New ATS-EEDPA to MDP.

c. Please provide conduit & wire sizes from the New ATS-EEDPA to Panel EEDP-A.

d. Please provide conduit & wire sizes from the New ATS-EMDP to ATS-138-EMDP.

e. Please provide conduit & wire sizes from the New ATS-EMDP to Panel EMDP.

Response: Wire size shown on sheet 138E-004.

a. (2 sets) 4#350 kcmil, #1 ground, 3” C.

b. (2 sets) 4#350 kcmil, #1 ground, 3” C.

c. (2 sets) 4#350 kcmil, #1 ground, 3” C.

d. (2 sets) 4#350 kcmil, #1 ground, 3” C.

f. (2 sets) 4#350 kcmil, #1 ground, 3” C.

7. 138E-004, 138E-005

a. Since we were unable to tour the building at the pre-bid we need a little more information about the panels we are replacing. We need the manufacture, model number, panel size, Main Lug or Main Breaker, name plate information. The panels are EEDP-A, EMDP, PSA, EEDP, L1C2, RCU, RCU1, 3B3, P1 & PH1.

Response: The replacement panels are shown on Sheets 138E-002 & 003. The old panels are similar in specs to the new panels. MLO, MCB, etc. You will need to remove the entire panel including the tubs.

8. Solicitation

a. Since there is quite a lot of information, we are requesting a 2-week extension.

Response: Extension granted.

9. 138E-005

a. Provide a scaled drawing showing routing of underground feeder from basement of Building 138 (ATS-LSDP) to Building 175 (ELDS).

Response: The relationship of buildings 138 and 175 can be seen on sheet C100. A new sheet has been created to show distance between the two buildings.

10. 194EP-100

a. There is a symbol for a card reader but no specifications. Please provide specifications.

Response: Please refer to revised drawings for additional information concerning card readers.

11. 194EP-100

a. Please provide location of EM Stop location.

Response: See revised 194-EP100 RFI-007 Batch 11/09/2020

1. EP-601

a. New medium voltage switchgear shows a load bank. Please provide location and conduit & wire required to load bank.

Response: Load bank not required. Deleted from single-line.

2. EP001S

a. Plan note 21 shows a temporary feed from AEP metering cabinet to existing medium voltage switchgear. Who provides the cable for this temporary circuit?

Response: Contractor provides.

RFI-008 Batch 11/09/2020

2. Sheet Reference: None

a. Is this project tax exempt?

b. Being that this project is listed as an IFB can we submit this project through email rather than email submission?

Response:

a. Tax Exemption Certificate will be provided

b. Hard Copy Bids and Bid Bonds are required to be mailed to Department of Veterans Affairs, ATTN: Jeffery Hairston, 8888 Keystone Crossing, Suite 1100, Indianapolis, IN 46240.

3. Sheet Reference: None

a. Can the site super also be the SSHO on site?

b. Can the site super also be the QA/QC on site?

Yes to both, as long the person is qualified.

4. Sheet Reference: None

a. Confirm ICRA on site for the specific areas designated to have work completed Response: See attached ICRA requirements.

5. Sheet Reference: None

a. The scope says there is fire alarm work, but we do not see it in any of the prints. Can you verify this?

b. What is the existing manufacturer of the F/A system?

c. Can you identify / confirm locations of those devices to be modified?

Response: None required.

6. Sheet Reference: None

a. There are several existing electric panel interiors called out to be replaced. Provide the following specific information:

i. What is the manufacturer of the existing panels to have the interior replaced? Different manufacturers have different specific dimensions, orientations. Currently there is insufficient information for this proposer pricing for replacement.

Response: Similar to answered elsewhere.

b. Is the Electrical contractor to cover the cost of the new Generator or is the GC responsible for this item?

Response: Prime contractor to determine scope of subcontracts.

RFI-009 Batch 11/09/2020 x

1. Sheet Reference: None

a. Can a site visit be arranged for building 138? There is some important information that we need for bidding purposes such as dimensions of existing tubs and verify existing ATS’s for EMCS purposes Response: Due to the current COVID restrictions, there is no opportunity for an additional site visit.

RFI-010 Batch 11/09/2020

1. 175EP-101 (Note 3) & 138E-005 (Note 1)

a. Contract Drawings 138E-005 (Note 1) and 175EP-101 (Note 3) require a new 200A Circuit Breaker in Switchboard “ELDS1”, located in Building 175, for Life Safety Feeder to Building 138 “ATS-LSDPA”. Can you please advise the manufacturer of the existing Switchboard? Would it be possible to provide pictures of the available space in the Switchboard distribution section?

Response: Similar to above

2. Spec Section 26 24 16, 138E-002, 138E-003, 138E-004 (Note 3), 138-E-005 (Notes 3 & 5), 138EP-100, 138EP-104 (Note 1 & 6), 138EP-105 (Note 1)

a. Panelboards, designations P1, PH1, LS4, AC, RCU, RCU1, EMDP, EEDP-A, 3B3 A/C and PSA, are shown on the contract drawings and indicated in the notes to be panels to fit existing boxes. This can be accomplished with existing back box dimensions, height, width and depth, to verify the new panelboard interior will fit the existing box. Please advise dimensions of back boxes that will be reused.

b. Contract Drawings 138E-005 and 138EP-100 (Note 5) requires a 200A/3P I-Line Breaker for normal feed to ATS-LSDP-A. Please advise if the manufacturer of the existing Panelboard is Square D. Would a picture be possible of the available space in the panelboard?

Response: Similar to above

RFI-011 Batch 11/09/2020

1. Reference Generator

a. The only exception we see is to Section 1.5 Submittal, 7. Certification a. 1)

Most standby units only run a maximum of 200 hours per year. We see a lot of units still in operation after 20 years with less than 1000 hours on them. It would next to impossible to find any manufactures standby generator that would be the same bore, stroke and model with 2000 hours on them. In most cases generators technology changes every five (5) years and with EPA regulations engines must run more efficient in order to comply with updated standards. Please confirm if that qualification will be revised.

Response: Revise 2,000 hours to 200 hours or similar manufacturer’s standard testing procedure if approved by Engineer during shop drawing review.

RFI-012 Batch 11/09/2020

1. Since we were not able to do a physical walk thru of the project, we will need the following questions/comments answered.

b. We are not able to field measure for the panels that are getting new interiors and covers, please provide the needed dimensions so we can accurately quote.

a. Similar to answered elsewhere.

c. Please provide panel schedule for PS1G

a. See sheet 193EL-100

d. Is any of the old equipment have any PCB’s that we will need to take care of?

a. Capacitors may. Non expected.

e. What is the weight of the of the old Medium Voltage Gear? Can the housing and gear be taken apart for transportation?

a. No way to determine this.

f. What is the weight of the existing medium voltage capacitor?

a. Estimate no more than 100 lbs.

g. What size stand by generator is required?

a. Medium voltage generator size indicated on single-line.

h. Will the GC take care of locating all private utilities?

a. This is a single prime contract. Prime contract to determine scope of sub contractors.

i. Prints EE001S, EP001S and 194EY-100 do not have scale associated with them.

a. See revised EE001S and EP001S for scale.

b. 194EY-100

j. Is print #57 missing? Yes, but has since been provided.

RFI-013 Batch 11/09/2020

1. No reference

a. There is a spec section for the High Security Fencing and Gates. Please provide a drawing with a clear location the fencing will be.

Response: Delete section Delete specification 32 31 13 Chain Link Fences and Gates (note construction fences are specified in 01 00 00) and specification 32 31 40 High Security Fences and Gates.

RFI-014 Batch 11/19/2020

1. Spec. 263624/ Dwg. EE601

a. Is it acceptable to utilize the existing EMCS infrastructure currently in place to satisfy the requirements of specification section 263624 – Energy Monitoring and Controls System, which would eliminate the need for the additional fiber, fiber switches, conduit, and new EMCS Server. We would still propose to provide all of the necessary meters at all locations shown and also fiber and conduit to the new generator building. The software to meet the specifications, Schneider Electric – Power Monitoring Expert, would be added to the existing EMCS Server and include all of the specification and drawing intent.

Response: Provided dedicated equipment/fiber/raceway per VA Design Guide.