36C25919R0092-0002007.xlsx
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- (CON) Restore Cooling Capability - 575 Federal contract opportunity
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- 36C25919R0092
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36C25919R0092 0002 S05 Answers Chillers and Towers RFI Responses 2.xlsx
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Sheet1
| Project: | Restore Cooling Capacity, Replace Boiler Plant Cooling Towers | |
| VA Western Colorado Health Care System | ||
| Grand Junction, Colorado, 81501 | ||
| Request For Information - Pre-Bid | ||
| Date: | July 12, 2019 | |
| Number | Question | Response |
| 1 | The Solicitation list a description of some of the bid items as N/A, however the N/A items are used on the bid schedule- please clarify. | See revised Bid Schedule |
| 2 | Plan sheet M000T lists deduct alternate#1 as removing the rental chillers and pump skid, however there are no deducts with this description shown on the bid schedule. please clarify this deduct which does not match the description of alternate #1 shown on the bid schedule. | See revised Bid Schedule |
| 3 | Plan sheet M000T lists deduct #2 as removing the cooling tower 9-CT-3, however the bid schedule describes this as line 0006 alternate #1. Please clarify which is correct. | Cooling Tower 9-CT-3 will not be removed from the project |
| 4 | The bid schedule lists line items 0002 alternate #4 and 0004 alternate #5 that pertain to mechanical scopes, however the mechanical sheets only show alternates #1-3. Please clarify. | See revised Bid Schedule |
| 5 | Plan sheet M000T lists deduct #3 as removing new filtration skid FS-1, however 0007 alternate #3 on the bid schedule is to remove Chiller 9-CCU-2. Please confirm which is correct. | See revised Bid Schedule |
| 6 | Will the electrical feeders for the temp chillers be required to be demolished at the end of the project, or capped and left in place? | The existing infrastructure is to remain, new infrastructure to be removed |
| 7 | Please provide revised drawings for both projects with the correct deductive alternates shown on the CLIN bid schedule. OR Please provide a corrected CLIN bid schedule that matches the deductive alternates shown on the plan set. | See revised Bid Schedule |
| 8 | The deductive alternate summary shown on sheet M000C does not match any of the descriptions and deduct numbers on the Bid schedule. please provide the correct bid schedule and plans that match the correct alternates. | See revised Bid Schedule |
| 9 | The Mechanical plans call out deductive alternate 7 which is not shown on the bid schedule. please clarify. | Deductive alternate 7 will not be taken - see revised bid schedule |
| 10 | Does the VA anticipate that there will be underground obstructions where the new concrete piers are to be located? | We have no way of knowing if any obstructions will be present during the drilling of the concrete piers |
| 11 | Please provide specification for Division 22 plumbing | Division 22 is provided for the Cooling Towers project. The Chiller project only uses Division 23 Mechanical Piping. There is no domestic piping in the chiller project. |
| 12 | Please provide a specification section for aluminum pit ladders as shown on A601T | Aluminum Ladder specified in 055000 Metal Fabrications |
| 13 | Please provide a specification section for manufactured steel platform and ladder as shown on sheet A601T. | specified in 055000 Metal Fabrications |
| 14 | Please provide a specification section for Division 7 roofing. | Roof Flashing has been added to define removable curb materials |
| 15 | Please provide a specification section for Division 5 structural steel. | Already exists in Towers project |
| 16 | Please provide a specification section for Division 5 steel grates | Steel Grates have been specified in 055000 Metal Fabrications |
| 17 | Will special inspections be required? Please provide specifications | Special Inspections are required for the cast-in-place concrete, the structural steel, and drilled piers as detailed in Sheet S002. |
| 18 | Will a footing or slab be required at the bottom of the stairs shown on detail 4/A601T? | Existing floor slab will be used |
| 19 | Please provide dimensions and what type of reinforcement is required. | Cannot answer |
| 20 | Please provide a Geotech report for the area of construction. | We have 2 older geotech reports. One from 2008 and one from 2011. In addition, there are two newer reports, one dated January 10, 2019 and the other January 24, 2019 for this project. Both of these were developed by Huddleston-Berry Engineering & Testing. |
| 21 | Please provide a specification for Division 32 site concrete | Specification Section 03 3000 has been provided for Cast-in-Place Concrete in the Specification Manual |
| 22 | Please provide a specification for Division 31 drilled piers | Specification Section 31 6326 has been provided for Drilled Caissons in the Specification Manual |
| 23 | Detail F1 on sheet S101 says “cooling tower footpad by others” please clarify who is responsible to provide this footpad. | This reference is to the steel plates at the base of the cooling tower columns. These should be provided by the cooling tower manufacturer |
| 24 | Please confirm IF steel casings are required for pier excavation. | See the additional remarks in the Concrete Drilled Pier Schedule to address this inquiry. |
| 25 | Will crane and rigging work be restricted to weekends? | No, but detailed lift plans will be required for each crane operation |
| 26 | What company is currently providing water treatment? | Chem Treat |
| 27 | Please provide the location of the proposed contractor laydown yard? | The road between the chiller plant and the golf course |
| 28 | Is there a Hazardous materials abatement plan or scope of work which clearly delineating the type and quantities of hazardous materials that are to be abated under this contract? | See attached reports |
| 29 | This solicitation’s NAICS is currently listed as 236220 - Commercial and institutional building construction. Both project’s scope of work is almost exclusively mechanical in nature with approximately 90% of the work being mechanical. Considering the above, it seems that NAICS Code 238220 – Plumbing, Heating, and Air-Conditioning Contractors would a more applicable NAICS code for this solicitation. Please consider changing the NACIS code of this project to 238220. | No this will not be changed |
| 30 | Please confirm that Johnson Controls is the current HVAC DDC contractor. | JCI is the current control system and the new system must be able to tie into the existing system. |
| 31 | Can CPARS Evaluations be used in lieu of PPQs? | Yes |
| 32 | Please provide a copy of the job walk sign in list. | Provided |
| 33 | The specified Thermax Chiller doesn’t appear to meet FAR 52.225-9 Buy American Act. Per the attached summary (Exhibit #1) from Thermax’s website, Thermax is an Indian corporation with its headquarters in India and nine production facilities in India, two in Denmark and the rest in China, Germany, Poland and Indonesia. Per Exhibit #2, Thermax entered into a sales partnership with Trane for sales in the United States. Per FAR 52.225-9 Buy American Act (Exhibit #3), construction materials are considered manufactured in the USA if the cost of the its components mined, produced, or manufactured in the USA exceeds 50 percent. Please have the DOR provide at least 2 alternate domestically manufactured absorption chillers that meet the DOR’s design requirements for this project. | No absorption chillers are made in the USA. We are working on an excetion. |
| 34 | Please confirm that the contractor is not required to provide or maintain an Onsite testing Laboratory. | See Note 2 under Special Inspection and Testing on Sheet S002. It is the contractor’s responsibility to hire an independent testing agency. |
| 35 | Spec section 01 45 00 3.4 B states that the CQC manager is required to be a PM and also required to be onsite at all times during construction. Please confirm If the VA is requiring the contractor to provide a full-time onsite PM/CQC manager in addition to the full-time superintendent that is required. | If the superintendent is identified by the contractor as being certified, then that one person on station can fulfill all 3 project roles |
| 36 | Please confirm if the requirements of section 01 45 00 3.4 C can be performed by the project superintendent. | contractor is responsible for showing that the proposed superintendent and can meet all the requirements as outlined in 01 45 00 3.4 C |
| 37 | Please confirm if the project superintendent will be sufficient to meet the requirements of 01 45 00 3.4 C if they are a construction professional with 5 years of related experience. | contractor is responsible for showing that the proposed superintendent and can meet all the requirements as outlined in 01 45 00 3.4 C |
| 38 | Please confirm that the contractor will not be required to hire a VPIH/CIH | Contractor is responsible for having a VPIH for lead and asbestos removal. Contractor is responsible for testing before and after removal |
| 39 | Please confirm that the contractor will not be required to hire a CPIH/CIH. | Contractor is responsible for having a CPIH for lead and asbestos removal. Contractor is responsible for testing before and after removal. |
| 40 | Will the project superintendent be allowed to perform the duties of the CP as well as SSHO or will these roles be required to be performed by separate individuals? | Proposed individual must meet all requirements |
| 41 | Can the superintendent also fulfill the roles of SSHO and CSHT if they meet the requirements of each? | Yes - Contractor to show they are qualified |
| 42 | Please confirm IF the CQM system manager is required to obtain the CQM for contractors course. | Yes |
| 43 | Who is responsible for the cost of PCM testing? | Contractor |
| 44 | Who is responsible for the cost of TEM testing? | Contractor |
| 45 | Please confirm if the DDC controls contractor must be hired directly by the contractor or if it is permissible for the HVAC contractor to provide as part of their subcontract to the General Contractor? | It is up to the contractors to work it out. |
| 46 | The electrical specifications reference section 01 91 00 general commissioning requirements, however this section is not included in the volume. Please provide section 01 91 00 and clarify if the VA or General Contractor will be responsible to retain their services. | Add attached 019100 General Commissioning specification to both projects |
| 47 | Please provide a detail for the steam condensate and steam trap valve assemblies to be installed on equipment 9-ACU-1 for this project. Refer to sheets M401C and M803C. | See sheet M803C and manufacturer’s installation instructions. |
| 48 | Please confirm that TB testing will be required for every person on-site prior to beginning work and every 90 days following per the direction given in the pre-bid meeting. | Correct |
| 49 | Please provide a copy of the pre-bid site visit sign in sheet. | Attached |
| 50 | Please provide ICRA level for this project. | Class II and contractor must periodically clean access road to construction area |
| 51 | Please provide specifications for chain link fencing. | Make sure you have both sets of specs. 32 31 13 is in the cooling tower specs. |
| 52 | 23 21 23 Hydronic Pumps spec sections are listed in the table of contents, but no spec included in the documents. Is this spec to be included in contract? If so, please provide. | It is missing in the cooling capacity book, but included in the cooling towers book - spec provided |
| 53 | Is the contractor required to pay for the use of Submittal Exchange? | Yes, Newforma or equivalent |
| 54 | The list of Drawing sheets doesn’t include the following pages: G100C Life Safety Plan, M803C Piping and Instrumentation Diagram, E501C Electrical Details- Chillers, however they are included in the plan set. Are these drawings part of the contract documents? If so, please provide an updated plan legend. | Yes, the sheet index on Sheet G000C has those drawings already. |
| 55 | Section 01 00 15 does not list the plan pages for the cooling tower project. Please confirm that the specifications that have been provided encompass project 575-18-109 as well project 575-16-104. | They are separate projects with their own specs and drawings. It is the contractor’s responsibility to have both sets. |
| 56 | 2 separate specification volumes have been provided and are both titled 575-18-109 Restore Facility Cooling Capacity. Please clarify if this is correct and these also include specifications for the Replace Boiler Plant Cooling Towers project. | They are separate projects with their own specs and drawings. It is the contractor’s responsibility to have both sets |
| 57 | Cooling Towers: |
a. Are Basin Heaters required? (We do not recommend basin heaters for remote sump applications)
b. Is Water Level Control required? If so, what type - Ultrasonic? a. No
b. Ultrasonic is fine
| 58 | Condenser Pumps | |
| a. What is Total Pump Length (TPL) required? | 9.2 feet is the basis of design | |
| 59 | Heat Exchanger |
a. Is AHRI-400 certification required by VA and Engineer?
| Scheduled pressure drops are indicated in “FT of H2O” and appear too low for proper operation…are these figures actually “psi”? Please clarify | AHRI certification is required. Ft of H20 is correct. | |
| 60 | Solicitation page 18 Special Standard of Responsibility: |
a. Should this be included in the Part II Past Performance Proposal?
| b. OSHA or EPA Violations: Confirm that a statement affirming the Offeror has no more than three serious, or one repeat, or one willful OSHA or EPA violation(s) in the past three years and inclusion of Offerors OSHA 300 and 300 A forms for the past 3 years be considered responsive? | Yes | ||
| 61 | Construction Experience Worksheet 36C25919R0092-007 attachment to the solicitation: this appears to be from another project and there are no proposal submittal instructions regarding construction experience. Please clarify that this is not required for this solicitation. | Attached | |
| 62 | In reference to Replace Boiler Plant Cooling Towers drawing S101 detail F1 calls out that the Cooling Towers Footpad by Others (Type 12 locations). Please confirm this scope is not in contract and will not be supplied and installed by the winning General Contractor. | See answer to question 23 | |
| 63 | In reference to Replace Boiler Plant Cooling Towers and Restore Facility Cooling Capability Drawing S002 are the Special Inspection requirement. Please confirm these inspections done by an independent testing agency are required. | Answer: See answer to question 17 | |
| 64 | In reference to Replace Boiler Plant Cooling Towers and Restore Facility Cooling Capability Specification Section 02 82 13.13 Glove bag Asbestos Abatement, par 1.1.2 A & B. Please provide estimated quantities of ACM such as gaskets, piping & fittings to be abated. | See attached assessments | |
| 65 | In reference to Replace Boiler Plant Cooling Towers and Restore Facility Cooling Capability specification section 26 08 00 1.3.B reference specification section 01 91 00 - General Commissioning Requirement. Please provide final specification of General Commissioning if required. | See answer to #51 above | |
| 66 | In reference to Replace Boiler Plant Cooling Towers and Restore Facility Cooling Capability specification section 26 08 00 1.1.B states that the Commissioning Agent (CxA) will be appointed by the VA will manage the commissioning process. And other specification such as specification section 23 05 12 – General Motors for HVAC & Steam and 23 22 13 Steam & Condensate Heating Piping States Commissioning Agent scope of work. Please confirm the VA will directly contract the Commissioning Agent scope of work describe in the RFP. | Contractor is responsible for Commissioning. Also see #51 above for specification | |
| 67 | In reference to Replace Boiler Plant Cooling Towers and Restore Facility Cooling Capability, there are underground utilities required to be installed. Please provide specifications for underground utilities. | See electrical specifications for underground electric. See mechanical specifications for mechanical underground utilities. | |
| 68 | In reference to Restore Facility Cooling Capability drawing M000C Mechanical General Notes #8 states that all new chilled water piping is to be insulated welded schedule 40 Black Iron. Per Drawing M101C detail 3 shows that the existing CWS and CWR are PVC pipe, please confirm new underground CWS & CWR materials required. | Match underground piping to existing as PVC. All indoor piping to be insulated welded schedule 40 Black Iron. | |
| 69 | In reference to Replace Boiler Plant Cooling Towers and Restore Facility Cooling Capability specification section 23 07 11 HVAC & Boiler Plant Insulation paragraph 3.3 Pipe Insulation Schedule calls out for CH, CHR, GC & GCR to be insulated using cellular glass closed cell and rigid cellular phenolic foam. The existing system uses fiberglass insulation, please confirm if using fiberglass insulation for these lines is acceptable with PVC jacket and advise on the new pipe insulation thickness. | It is acceptable to match existing. | |
| 70 | In reference to Replace Boiler Plant Cooling Towers drawing sheet ED-100T and Restore Facility Cooling Capability drawing ED-100 C both drawings show existing 75 KVA XFMR (disconnected). The Replace Boiler Plant Cooling Towers One Line Drawing E-102 T shows the existing 75 KVA XFMR feeding existing panels 9RL Sec-1 & Sec -2 and 10 panel. Is the existing 75 KVA transformer to be removed? If so, where will the existing panels be fed from? Please clarify. | The 75KVA transformer is disconnected and will continue to be disconnected. Trans 2 is the transformer that panels 9RL SEC 1 and 2 and 10 Panel are fed from. Transformer is mislabeled on E-102T. 10 Panel is in building 14. 9RL Sec 1 and 2 are located in the boiler room as well as transformer 2 according to originating one-lines. | |
| 71 | In reference to Restore Facility Cooling Capability drawing sheet E-102 C shows panel M is to be fed out of the new main switch board 9-ECP-2. In Replace Boiler Plant Cooling Towers Drawing ED-100T key note #2 shows the existing panel and feeders be removed and to keep existing branch circuiting. Please clarify if existing Panel M is to be removed and replaced with a new panel as called out in E-102C and the breaker schedule as drawn in E-100C. | Panel M is to be removed and replaced with new panel in the Cooling Tower project as shown on the one-line risers on E-102T. Panel M on E-102T is mislabeled and should be highlighted as a replaced panel. It is fed out of the new main switch 9-ECP-2 in the Chiller project as shown on EP-100C | |
| 72 | In reference to Restore Facility Cooling Capability drawing E-102 C key note #3 Replacement of the existing 750 KVA XRMR with a new pad mount XRMR 750KVA. Drawing E-102C One Line Riser Diagram show it feeding a new 2500 KVA XRMR. Please clarify. | This is correct in order to supply the building with a second service to supply enough power for the load demanded by the upgraded chillers. The new transformer will be 2500 KVA | |
| 73 | Would it be possible to get an updated set of Electrical drawings that combines the Replace Boiler Plant Cooling Towers and Restore Facility Cooling Capability drawings as there are many descriptions on the drawings that conflict with each other. | No. They are separate projects and the documents cannot be combined. | |
| 74 | In reference to Restore Facility Cooling Capability drawing EP-100C shows 9-CCU-1 and 9-CCU-2 feeds through 9-ECP-2. Drawing E 100C the panel schedule for the main switch board 9-ECP-2 shows a 1200 Amp chiller CS3 and chiller CS-4 and an 800 Amp panel M. The chillers are not labeled the same, please clarify including 50Amp circuit breaker rating in panel ECC-2 for ACCU-1 | Correct, 9-CCU-1 is CS-3 and 9-CCU-2 is CS-4. 9-ACU-1 is 50A CB on Panel ECC-2. | |
| 75 | In reference to Restore Facility Cooling Capability drawing EP 100C shows 5 sets of 4-#400 and 1-#250 G in a 3’’ conduit from 9-ECP-1 to T9-ECP-1 Transformer. It does not show 9-ECP-1 being replaced, please clarify | It is not being replaced, but the transformer is therefore feeders are being replaced to 9-ECP-1 from T9-ECP-1 | |
| 76 | In reference to Restore Facility Cooling Capability drawing EP- 100 C shows Pumps 9-P-1 and 9-P-2 running conduit and wire to Panel M but panel M is supposed to be removed per Drawing E-102T under Replace Boiler Plant Cooling Towers drawing sets, please clarify | Panel M is removed and replaced under the Cooling Tower project. Reference E-102T. Panel M is mislabeled on E-102T and should be highlighted as replaced. Pumps are to be powered by Panel M during the Chiller upgrade project | |
| 77 | Will the VA allow the existing generator supplying the backup power to the Boiler Plant be utilized including providing the fuel for the shutdowns or will the Contractor be responsible to provide a temporary generator and fuel? | VA to provide use of existing generator and fuel. | |
| 78 | In reference to Restore Facility Cooling Capability Drawing E102 C shows to install a new 2500KVA transformer and to install 7-sets of 3-#500 and 1-#350 grd. Please confirm no neutral required. | Cabling to be 7-sets of: 4-#500 in 3” Conduit No ground required. New ground shall be derived from the new switchboard 9-ECP-2 | |
| 79 | In reference to Replace Boiler Plant Cooling Towers drawing E102T key note 3 states that the existing panel M feeds are to be removed and to keep existing branch circuiting. Drawing EP -100T shows panel ECC 2 state 4 #250 and 1#4 grd in a 3’’ conduit with an arrow marked M but on sheet E102C of the Restore Facility Cooling Capability drawing shows panel M to be fed out of the new switch board 9-ECP 2 with 3-sets of 3#300 and a #1/0 grd in 2 ½’’ conduit to exiting panel M can the VA. Please clarify including the requirements of 3 sets of 3#300 and a #1/0 grd in 2 ½” conduit. | Panel M should be 3 sets of: 4-#300, 1-#1/0 GRD, 3”C. Not 3 wire. Shall be fed from new switchboard 9-ECP-2 during Chiller replacement project | |
| 80 | In reference to Replace Boiler Plant Cooling Towers drawing S501 detail D3 shows Continuous L8x4x1/16 (Galv) w/12’’ Ox5 -HAS @12CC but detail D5 and D7 does not show these as galvanized finishes. Please clarify | The steel angles shown in both Details D5 and D7 are to be galvanized to match D3 angle. | |
| 81 | In reference to Replace Boiler Plant Cooling Towers drawing CD101 call out for the existing fence to be removed and reinstalled in the same location and connected to the new chain link fence. This existing fence is 8ft high and the new fence call out for 6ft high. Please confirm if new fence needs to match height of the existing fence. | 8 ft fence | |
| 82 | In reference to Replace Boiler Plant Cooling Towers specification 31 63 26 Drilled Caissons section 1.10.A Quality Assurance states that the “Owner shall retain the services of a Geotechnical Consultant to provide general observation of all pile operations and to provide technical advice to the Owner with regards to pile operations and performance.” Drawings S101 Concrete Drilled Pier Schedule additional remarks states that “Drilled pier installation shall be as per geotechnical engineering recommendations” and’’...actual length to be determined by Geotechnical Engineer in Field/ on site”. Please confirm that the Geotechnical Consultant that the VA will directly subcontract is the same person and will have the same duties as the Geotechnical Engineer stated in the drawings. | Refer to note in answer of question 34. It is the contractor’s responsibility to retain the services of an independent testing agency. Refer to S001 for the information in regards to the geotechnical engineering work done as part of this project. | |
| 83 | In reference to Replace Boiler Plant Cooling Towers specification 31 63 26 Drilled Caissons section 1.8 F states the “Contractor shall retain an Independent Testing & Inspection Agency” while section 1.9 C states the “Owner shall retain at his own expense, the service of a qualified Independent Testing and Inspection Agency.” Please confirm if an Independent Testing & Inspection Agency is required and if Owner is to provide this service directly in addition to the Geotechnical Consultant mentioned in 1.10A. | Refer to note in answer of question 34. It is the contractor’s responsibility to retain the services of an independent testing agency. Refer to S001 for the information in regards to the geotechnical engineering work done as part of this project | |
| 84 | In reference to Replace Boiler Plant Cooling Towers specification 31 63 26 Drilled Caissons section 1.9.E Quality Control states that the “Owner shall engage a qualified land surveyor or Professional Engineer to perform surveys, layouts and measurements for caissons.” Please confirm if VA will directly subcontract with this individual. | It is the contractor’s responsibility to retain the required subcontractors/professionals to properly layout the site survey and placement of the caissons. | |
| 85 | In reference to Replace Boiler Plant Cooling Towers specification section 31 63 26 1.8F states “test results required for pile load tests.” Please provide requirements, procedure, number of piles to be load tested and acceptance criteria of the pile load test. | The pile load testing requirements were removed as part of this project. | |
| 86 | In reference to Replace Boiler Plant Cooling Towers drawing S001 Foundation Note 4, please provide Geotechnical Report Memo reference. | The original testing report dated January 10, 2019 and the follow up letter dated January 24, 2019 should have been provided as part of the Project Manual | |
| 87 | In reference to Replace Boiler Plant Cooling Towers specification section 31 63 26, please provide procedure if obstruction is encountered at less than the 55ft elevation during drilling. | Please contact Geotech engineer if required | |
| 88 | In reference to Replace Boiler Plant Cooling Towers drawing A101T detail 4 & 5 shows a removable insulated roof curb. For bidding purposes, please provide dimension or size required. Also provide detail of termination along Gridline 1. | Scale curb from drawings | |
| 89 | In reference to Restore Facility Cooling Capability specification section 01 45 00 Quality Control, |
a. Please confirm this specification is required or was included in error as this section was not in the table of contents.
b. If required, please confirm this requirement applies to the Replace Boiler Plant Cooling Towers as well
c. If required, please confirm if that personnel such as, the QC Specialist/ Engineers/ Construction Managers are required as describe in this section as the costs incurred with unnecessary personnel would be prohibitive.
| d. If required, please confirm if the CQC Manager can be dual hatted as the SSHO and/or Superintendent. | It is required | ||
| 90 | In reference to Restore Facility Cooling Capability and Replace Boiler Plant Cooling Towers specification section 01 45 29 Testing Laboratory Services paragraph 3.9 Sprayed-On Fireproofing states “test requirements for sprayed on fireproofing.” Please provide scope of work for the sprayed-on fireproofing and specification if required. | It is provided 01 45 29 3.17 C-E | |
| 91 | In reference to A.3 Statement of Work Section VII Hours of Work states Contractor to propose the work hours and schedule to complete April 15th 2020. And states that “an Administrative Notice to Proceed (NTP) to be given no later than 15th July 2019.” Section VIII states that “the period of performance including materials and submittals is 225 days from Notice to Proceed.” |
a. Due to long lead times of equipment, we would like to request an increase in the period of performance to 270 days from Notice to Proceed.
| b. Please provide new date of when the administrative Notice to Proceed (NTP) will be given to Contractor in order to estimate the cost of the additional monthly rental of the 500ton Chiller which is needed past the given 15 April 2020 date. | a. Contract will not exteed 250 days after NTP, cooling must be restored to the facility by May 1, 2020. If not, temporary cooling will be supplied by the contractor at no cost to the government. B. No adminstrative NTP will be given to the contractor | ||
| 92 | In reference to A.4 Bid Schedule, please provide revised Bid Schedule as it does not match the A.3 Statement of Work Bid Alternates and it does not match the Deduct Alternates Summary stated in Drawings M000C (Replace Boiler Plant Cooling Towers) and M000T (Restore Facility Cooling Capability). Please confirm the final Deduct Alternates required. | See revised Bid Schedule | |
| 93 | Please confirm if the temporary chiller currently installed beside the Boiler Plant will need to be removed before the start of construction. | Yes it will be removed prior to start of construction | |
| 94 | Please confirm if General Contractor can use Medical Center toilet designated by the VA during the construction period. | General contractor will not have access to VA toilets during construction | |
| 95 | In reference to Replace Boiler Plant Cooling Towers drawing S401 detail B4, please provide thickness of the Equipment Pad – On Grade. | The thickness of 1’-0” is shown in the Detail B4 on Sheet S401. | |
| 96 | Please confirm if dimensions or size of the equipment used in the basis of design fits allowed spaces as shown in the drawings for both Restore Facility Cooling Capability and Replace Boiler Plant Cooling Towers sets. | BIM models as accurate as possible were used in this design and everything appeared to fit, but it is tight. Obviously we have not physically put the equipment in the rooms yet so we cannot say with 100% certainty. | |
| 97 | In reference to Replace Boiler Plant Cooling Towers drawing MD101T keynotes 23-01, please confirm that the existing support such as the concrete pedestal will be demolished up to the existing equipment slab elevation. | If it is required to be demolished to complete installation, then yes. | |
| 98 | In reference to Replace Boiler Plant Cooling Towers specification section 23 07 11 HVAC & Boiler Plant Insulation paragraph 3.3, please advise the insulation material and size for the condenser piping (CR & CS) to be used if required. | 1” fiberglass insulation with aluminum jacket (jacket per 3.1.L) | |
| 99 | Will the VA allow the use of the existing overhead trolley beam for piping demolition and installation? | General contractor will not have access to VA owned equipment or tools. | |
| 100 | In reference to Restore Facility Cooling Capability and Replace Boiler Plant Cooling Towers specification section 01 00 00 General Requirements doe not state any work shift hours, please clarify. | Normal work hours should apply, contact COR for any outside of normal work hours activities, especially for any utility shut downs. | |
| 101 | In reference to Restore Facility Cooling Capability and Replace Boiler Plant Cooling Towers specification 23 21 13 Hydronic Piping does not reference any non-destructive testing on pipe welding. Please clarify if not required. | Conform to the specifications | |
| 102 | In reference to Restore Facility Cooling Capability and Replace Boiler Plant Cooling Towers specification 23 22 13 Steam & Condensate Heating Piping paragraph 3.2 H states to perform radiographic examination, will the VA allow ultrasonic testing or magnetic particle testing in lieu of radiographic test for pipe welding? | No. They are separate projects and the documents cannot be combined. | |
| 103 | Can the SSHO and CQC manager be the same person? | Yes - Contractor to show they are qualified | |
| 104 | Can the SSHO serve as superintendent? | Yes - Contractor to show they are qualified | |
| 105 | Can the CQC serve as superintendent? | Yes - Contractor to show they are qualified | |
| 106 | Do the SSHO and CQC need to be employees of the General Contractor? | Yes | |
| 107 | Do the SSHO and CQC need to maintain presence on site at all times work is occurring? | Yes | |
| 108 | What is the minimum number of employees the General Contractor must employ on site any time work is occurring? | The required number of employees on site will be whatever the contractor deems necessary to get the projects complete within the specified timeframe | |
| 109 | Can the CQC system manager serve as specialized personnel listed in 01 45 00 3.4.C provided, he or she meets the requirements listed in the Experience Matrix? | Yes - Contractor to show they are qualified | |
| 110 | Please confirm the CQC system manager must have completed the Naval Facilities Engineering Command/Army Corps of Engineers CQM course certification. | Yes | |
| 111 | Can the SSHO and CQC have duties on other contracts, or must they be dedicated solely to this contract? | Yes they can have duties on other contracts, but must be available as need to fulfill the requirements | |
| 112 | The 225-day POP will not be enough time to complete the project will the VA consider changing the POP to 300 days or give an administrative NTP after award? | There will be no Adminstrative NTP. | |
| 113 | The specifications state that a security escort is required for this project. Please confirm that a security escort will be required and that the VA will provide the security escort for the duration of the project. | Chiller side escort is not required. If Boiler side access is requested it will have to be escorted and overseen by VA. Contractor should not require Boiler side access. | |
| 114 | Please provide a clear description of the work to be deducted in the solicitation price schedule alternates. The Bid Alternates listed in the Statement of Work do not match the Price Schedule. Also, please identify which set of drawings the alternate is referencing. There are multiple alternates on both sets of drawings. | See revised Bid Schedule | |
| 115 | Please confirm that the contractor will need to provide coordination drawings for the project. | Yes | |
| 116 | Will CAD drawings be provided for background use developing shop drawings? | Provided | |
| 117 | Please Identify all equipment that will be salvaged and turned over to the VA. | existing filtration skids to be turned over to the VA | |
| 118 | Please provide the location that the contractor will have to take the salvaged equipment to. | location is up to the contractor, the salvaged amount will be a credit to the VA | |
| 119 | Please provide a map/location of our equipment/material laydown area. | Laydown area will be road between the chiller plant and the golf course. | |
| 120 | Will the VA require a credit for scrap material from the contractor? | Yes | |
| 121 | FBO has posted (2) sets of specs and (2) sets of prints for the subject line project. They are considerably different. Can you verify which set is correct? | All are correct - there are two separate projects | |
| 122 | In addition, please clarify the panel schedule for Panel M. | Panel M is to be removed and replaced with a new panel in the Cooling Tower project as shown on the one-line risers on E-102T. Panel M on E-102T is mislabeled and should be highlighted as a replaced panel. It is fed out to the new main switch 9_ECP-2 in the Chiller project as shown on EP-100C. | |
| 123 | The new cooling tower schedule on sheet M501T note 3 states to” provide with 12’ height mounting leg extensions. Each tower will be mounted on top of the existing 18” thick concrete slab in front and on top of structural piers at the 2 back corners. See structural for pier construction and mounting of each new cooling tower”. Please confirm if we are to bid per this note and only install new piers to support the rear corners of the new cooling towers. | See answer to 127 | |
| 124 | Please provide as built details of the existing 18” slab below the cooling towers. | Not available | |
| 125 | What is to be done with the piers that support the existing cooling towers? | Attached existing drawing, sheet 9-S1 | |
| 126 | Please provide as built plans of the existing electrical duct bank feeding the transformer adjacent to the existing cooling towers. | Not available | |
| 127 | Please provide a plan that shows the saw cutting and slab repairs required to install the new cooling tower caissons as shown on S101 detail F1. | The existing structural pad will essentially be by-passed with the installation of the new concrete piers. The slab shall be removed as required for the installation of the new concrete piers. | |
| 128 | What is the thickness of the existing slab below the cooling towers? | 18" | |
| 129 | Please provide an as built of the existing cooling tower piers. | Attached existing drawing, sheet 9-S1 | |
| 130 | If the deductive alternate is taken and the cooling tower is removed, are all of the new caissons still required to be installed or will the additional 2 caissons be removed and the remaining caissons re-structured to support only one equipment leg each instead of two? | Install all caissons | |
| 131 | SECTION 23 64 00 -PACKAGED WATER CHILLERS This specification only allows for R-123 refrigerant. There is currently only one manufacturer of this type of equipment. “Trane” and per current phase out dates the last day they can manufacture a unit using this Ozone depleting refrigerant is 12/31/19. With a typical 6-month approval to delivery time this is problematic. Is R-134A an acceptable alternative refrigerant? | R-514A is acceptable. However add to spec section 23 64 00 for economizing ability for the chiller: | |
| FREE COOLING |
A. A free cooling cycle shall be provided for the centrifugal chiller. The proposed chiller shall provide required material (including controls, valves, piping, and additional storage vessels) to allow cooling of chilled water by transferring heat to cold condenser water without operating the compressor. This shall be a factory installed option on the centrifugal chiller. The following details shall apply:
1. Changeover from free cooling to mechanical cooling shall be initiated by manual operation of a switch on the machine control panel.
2. Interlock between free cooling cycle and normal operational cycle shall be provided to prevent compressor start-up or operation during unsafe conditions.
3. Manufacturers with systems requiring spray pumps shall be responsible for any special foundations required to provide adequate pump Net Positive Suction Head (NPSH). When pump is used, provide necessary pump starter, disconnect and wiring.
4. Where spray nozzles are used, provide access provision for removal and cleaning of nozzles.
| 132 | 1. The asbestos abatement notes and SOW for this project state that the contractor is to provide an environmental survey abate any identified ACM. The environmental survey for this building should have been undertaken during the design phase. As the SOW is currently drafted, without quantities of materials to be abated, this requirement is ambiguous and unbiddable. To allow for equitable bidding by all contractors please provide a budgetary amount of ACM that needs to be removed. Another option is the have the contractor’s carry an arbitrary ACM Abatement contingency fund in their bids by adding it directly to the bid schedule. Please advise | See attached survey |
| 133 | Please provide a geotechnical report | Attached |
| 134 | What is the primary voltage of the pad mounted transformers? | 13.2kV |
| 135 | What is the wire and conduit size for the electrical feeder between the new 750KVA and 2500 KVA transformers? | 4-2/0cu 133% EPR, 2”C |
| 136 | Please provide electrical duct bank routing between the new pad mounted transformer and switchboard 9-ECP-2 | See updated sheet EP-100C |
| 137 | Please provide an as built for the underground utilities present in the new cooling tower areas and the area to the east of building 9 | As built should be provided by contractor on site and updates to original model to be made after construction for record keeping |
| 138 | The specification include section 02 82 13.13 glove bag asbestos abatement. The solicitation does not include a building asbestos report and no asbestos is noted on the plans. Please quantify the asbestos to be abated. | See attached assessments |
| 139 | The designed absorption chiller 9-ACU-1, Thermax, Model TAC S2 F2 does not meet the buy American requirement. No absorption chiller manufacturer can qualify for Buy America because there is no absorption chiller manufacturing facility in the United States. Is the attached "YST" Steam-Powered Centrifugal Chiller an acceptable alternative to the steam-powered absorption chiller. The "YST" qualifies for Buy American compliance and is powered by facility steam. | The proposed alternate steam-powered chiller is too different from the scheduled absorption chiller and would require extensive design changes. We are working on an exception. |
| 140 | In reference to Replace Boiler Plant Cooling Towers drawing M101T and Restore Facility Cooling Capability drawing M101C, both keynotes 23-25 states to provide 200 ton rental chiller. Drawings M000C and M000T scope of sequence work summary note #5 and deduct alternate summary #1 states to provide 2 120 ton rental chillers. Please clarify what capacity is required for the rental chillers | 2 EA 120 ton rented chillers are required to support both projects, not 4EA. The projects were developed independently and therefore had to have temporary chillers in both. Since they are solicited together, the deduct will be taken from the cooling tower project, reference the revised Bid Schedule. |
| 141 | In reference to A.3 statement of work section II.B states that the centrifugal chiller cannot contain magnetic bearings. In the Chiller industry, magnetic bearing technology has been trustworthy and efficient. Is Magnetic-Bearing technology acceptable on the centrifugal chillers to achieve improved efficiency? | No |
| 142 | In reference to A.3 statement of work section II.B states that the Economizer/ Free Cooling must be part of the chiller. Please advise what is the “free-cooling option” that has been specified on the designed centrifugal chillers? Is it required from all bidding manufacturers? | See answer to #131 |
| 143 | The designed Themax absorption chiller may not qualify for Buy American compliance. Similarly, no current absorption chiller manufacturer can qualify for Buy American because there is no absorption chiller manufacturing facility in the United States. Is the attached "YST" Steam-Powered centrifugal chiller an acceptable alternative tot he steam-powered absorption chiller? The "YST" qualifies for Buy American compliance, and is powered by facility steam. the YST Engineering Guide is attached for reference. | The proposed alternate steam-powered chiller is too different from the scheduled absorption chiller and would require extensive design changes. We are working on an exception. |
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