Attachment 24 - RFIs - Technical Questions and Responses.pdf

36C77622B0029 Replace Boilers Leavenworth: TECHNICAL QUESTIONS AND VA RESPONSE TRACKING SHEET

ITEM

NO.

DATE

QUESTION

RECEIVED

DATE

QUESTION

ANSWERED

QUESTION GOVERNMENT RESPONSE

1. 7/21/2022 8/1/2022 Will all systems (MEP) to be made safe prior to mob?

Yes, see next question

2. 7/21/2022 8/1/2022 Will make safe be supplied by Owner (VA) / General Contractor (GC)

Both, VA and Contractor LOTO required.

3. 7/21/2022 8/1/2022 Will temp water / temp power be supplied by VA /

GC?

Yes

4. 7/21/2022 8/1/2022 Please confirm that any and all loose contents, furniture, materials not fixed or fastened mechanically will be removed from all work areas scheduled for demo / abatement?

VA will remove tools and furnishings

5. 7/21/2022 8/1/2022 Are any items scheduled to be replaced / demolished wanting to be salvaged by VA / GC?

Only those already identified – i.e., Emergency Generator.

6. 7/21/2022 8/1/2022 What is the max load in boiler room? Load Varies on season Summer – 4.6 KPH/Winter

-28 KPH

7. 7/21/2022 8/1/2022 To perform work, various equipment to be utilized around perimeter of bldg.. 39, What are the known, or potential below grade utility / tunnel hazards exist?

Campus main steam tunnel at Northeast of Bldg.

39. Sewer and Natural Gas mains at Southeast of Bldg. 39

8. 7/21/2022 8/1/2022 What weight restrictions / limitations (if any) should be considered?

Maximum vehicle load should be assumed to be HS-20. No heavy loading within 8’-0” of foundation walls with subgrade areas.

9. 7/21/2022 8/1/2022 Any restrictions / special requirements to consider prior to performing open flame cutting (torch / plasma cutting) on interior / exterior demo work?

Follow established VA Hot Work Permit requirements – will be provided.

10. 7/21/2022 8/1/2022 Please confirm if there is an independent liner inside of the chimney

Liner to remain

DATE

QUESTION

RECEIVED

DATE

QUESTION

ANSWERED

QUESTION GOVERNMENT RESPONSE

11. 7/21/2022 8/1/2022 Please confirm if there are any original drawings (structural, as built, etc.) for chimney, if so please provide.

“Brick Chimney” drawing dated 9.26.62 showing original construction, and “Preventive Maintenance & Repair – Chimney” drawing dated 4-22-91 can be provided.

12. 7/21/2022 8/1/2022 Please confirm if there are any previous inspection reports for this chimney

None available

13. 7/21/2022 8/1/2022 Please confirm if the ACM is on the inside of the liner (if there is one), or limited to outer interior chimney lining (anulus)

Liner to remain

14. 7/21/2022 8/1/2022 Please confirm if there is anything covering the brick which may make it difficult to remove the ACM

Boilers were operating at the time of the survey.

Destructive investigation of operating equipment and the interior of the stack was not conducted.

The interior of the stack was not entered and sampled by the environmental consultant.

15. 7/21/2022 8/1/2022 Please confirm if the step Irons located over the breeching are in usable condition

Cannot guarantee/confirm

16. 7/21/2022 8/1/2022 Please confirm if there is a specific Geofoam required for this project.

Lightweight, capable of supporting 2 psi.

17. 7/21/2022 8/1/2022 Please confirm elevation of the existing chimney door in relation to section 2 – Chimney modification section on drawing S-532

There are two (2) openings in the chimney:

breaching and top. Breaching opening/chimney door are the same opening and is located approximately 1’-6” above grade.

18. 7/21/2022 8/1/2022 Can you provide bulk sampling / lab analysis report for ACM listed within RFP?

Bulk sampling results and lab reports are provided in the Mabbett Regulated Building Materials Survey Report for Building 39 dated January 18, 2021.

19. 7/21/2022 8/1/2022 Can you provide a detailed description / photos of the ACM material within Chimney, also is this material friable, or non-friable?

The interior of the stack was not entered or sampled by the environmental consultant.

DATE

QUESTION

RECEIVED

DATE

QUESTION

ANSWERED

QUESTION GOVERNMENT RESPONSE

20. 7/21/2022 8/1/2022 Should the interior boiler refractory be assumed as

ACM?

Boilers were operating at the time of the survey.

The interior boiler refractor should be assumed to be ACM unless sample results prove otherwise.

21. 7/21/2022 8/1/2022 Regarding the temporary trailer for facility staff. Will portable toilets be acceptable? in lieu of a trailer with a restroom in it? A trailer would be provided still but without the restroom.

Available toilets are accessible to Staff within adjoining buildings. Portables will be required for Contract Personnel.

22. 7/21/2022 8/1/2022 There will be a few penetrations in the roof. Is there a roof warranty currently on the building? If there is a roof warranty, who holds the warranty?

No warranty

23. 7/21/2022 8/1/2022 Who is the current controls (BMS) vendor for this building? Is there a particular person to coordinate with?

Hayes Cleveland – POC is John Fry

24. 7/21/2022 8/1/2022 Who is the current fire alarm vendor for this building? Is there a contact person for coordination purposes?

Siemens has the contract. VA’s POC is our Life Safety person, DJ Adams

25. 7/21/2022 8/1/2022 Is the existing boiler plant a 24/7 operating plant? Yes, high pressure requirements

26. 7/21/2022 8/1/2022 Is there a preferred seismic company? No

27. 7/21/2022 8/1/2022 Clarify BIM Coordination requirements. Question is not specific and cannot answer.

28. 7/21/2022 8/1/2022 How much abatement is required for the stack? Is it the entire stack or where the tie ins are at?

Only where enclosing stack top and base entry.

29. 7/21/2022 8/1/2022 01 00 00 1.3-A.32 requires a pipe stress analysis, signed and sealed by a PE with a current license in the state of

PA. Confirm PA is required and not KS.

State of Kansas.

30. 7/21/2022 8/1/2022 23 09 23 was not included with the specifications. There are air-side controls and process water pump controls amongst other 23 09 23 controls that are required. Please provide specification and advise who the proprietary controls contractor is.

Please see attached specification 23 09 23. The contractor shall coordinate with the facility, for the existing controls contractor information.

DATE

QUESTION

RECEIVED

DATE

QUESTION

ANSWERED

QUESTION GOVERNMENT RESPONSE

31. 7/21/2022 8/1/2022 Chemical Treatment for Temporary Boilers: Please confirm the Government will provide chemicals for the temporary boilers.

The VA will; however the contractor shall coordinate with the facilities’ existing chemical feed contractor (see specification 23 50 11).

32. 7/21/2022 8/1/2022 The scissor lift skid (MP-101C) states to see plumbing drawings. The plumbing drawings do not provide any information on this skid. Is this skid to be new? Please provide specs.

Optimus hydraulic lift table, model Lift5K manufactured by Bishamon Industries Corporation or approved equal.

33. 7/21/2022 8/1/2022 Please provide a spec and details for the 14’x7’ enclosure that goes around the booster pump system.

Enclosure shall be Hotbox HA087172085 or approved equal.

34. 7/21/2022 8/1/2022 Please confirm flue gas economizers are not required. They are not

35. 7/21/2022 8/1/2022 How long should the Contractor assume the temporary boilers are required for this project? Will the

Government pay the monthly costs for the temporary boilers if it goes over this duration?

This will be based upon the contractor’s projected construction schedule.

36. 7/21/2022 8/1/2022 Please confirm the metal fabricator must be AISC certified per 01 45 35 2.1-B and 05 12 00 1.5-B. This typically limits steel contractor competition.

The VA concurs with this requirement.

37. 7/21/2022 8/1/2022 The boiler manufacturers typically want down payments at receipt of PO, receipt of submittals, equipment release, etc. Will the Government pay for these down payments, or does the Contractor need to figure a loan in their estimate to front the costs?

Yes

38. 7/21/2022 8/1/2022 Please confirm the Government will provide all fuel oil for the temporary boilers and for tuning and commissioning the new boilers.

The contractor is responsible for tuning and commissioning the new boilers. The VA will supply the fuel oil for the temporary boilers.

39. 7/21/2022 8/1/2022 Please confirm the Contractor shall hire the

Commissioning Firm per 01 91 00 1.8-B.3.

Yes

DATE

QUESTION

RECEIVED

DATE

QUESTION

ANSWERED

QUESTION GOVERNMENT RESPONSE

40. 7/21/2022 8/1/2022 Please confirm the Contractor shall include a dedicated

SSHO in their bid. This is separate from the Site

Superintendent.

Yes, during construction operations per the contract documents.

41. 7/21/2022 8/1/2022 Please confirm the Contractor shall hire a firm like

Multivista to meet the Photographic Documentation requirements per 01 00 00 1.25.

The requirements are noted in 1.25 Photographic Documentation.

42. 7/21/2022 8/1/2022 Please provide a basis of design manufacturer for the anti-ram bollards (detail 2/S-530 and civil drawing C-

102). Please confirm these shall be a delegated design.

Gibraltar G-1000. This is a delegated design item by a professional engineer in the State of Kansas

43. 7/21/2022 8/1/2022 Please confirm the Contractor shall hire a firm like BEI to provide the Boiler Plant Safety Device Testing.

Yes

44. 7/21/2022 8/1/2022 Is the Contractor to hire the Certified Boiler Inspector, or the Government?

Contractor

45. 7/21/2022 8/1/2022 Spec 23 52 39, para 2.1.D calls for a minimum fireside heating surface of 5 square feet per boiler horsepower while the Fire Tube Steam Boiler schedule on drawing

MP-701 lists a fireside heating surface of 2404 square feet (which is only 3.43 sq ft per boiler horsepower).

Which is correct?

5 square feet

46. 7/19/2022 8/1/2022 The roof trusses appear to be 24” on center. The drawings call for 24” exhaust stacks to penetrate the roof. Due to snow load and the lack of bracing on the bottom side of the trusses; is there any guidance on how the roof should be penetrated, boxed out, etc?

Roof joists appear to be at 1’-6” o.c. with girders at 4’-0”, verify all dimensions in field. Provide framing around openings as shown in detail 1/S- 522.

47. 7/21/2022 8/1/2022 Regarding the temporary trailer for facility staff. Will portable toilets be acceptable in lieu of a trailer with a restroom in it? A trailer would be provided still but without the restroom.

Yes. Staff has restrooms within the adjoining building envelop to use.

48. 7/21/2022 8/1/2022 There will be a few penetrations in the roof. Is there a roof warranty currently on the building? If there is a roof warranty, who holds the warranty?

No warranty

DATE

QUESTION

RECEIVED

DATE

QUESTION

ANSWERED

QUESTION GOVERNMENT RESPONSE

49. 7/21/2022 8/1/2022 Who is the current controls (BMS) vendor for this building? Is there a particular person to coordinate with?

Hays Cleveland – John Fry

50. 7/21/2022 8/1/2022 Who is the current fire alarm vendor for this building? Is there a contact person for coordination purposes?

Siemens has the contract. VA’s POC is our Life Safety person, DJ Adams

51. 7/21/2022 8/1/2022 Is the existing boiler plant a 24/7 operating plant? Yes

52. 7/21/2022 8/1/2022 Is there a preferred seismic company? No

53. 7/21/2022 8/1/2022 Clarify BIM Coordination requirements. Question is not specific and cannot answer.

54. 7/21/2022 8/1/2022 How much abatement is required for the stack? Is it the entire stack or where the tie ins are at?

Just where the tie ins are.

55. 7/18/2022 8/1/2022 Due to the number of VA projects bidding around the same date, would it be possible to get an extension of the bid date? Thank you for your consideration.

No objections from the VA

56. 7/21/2022 8/1/2022 What location will be able to be used for?

a. Dumpster location Best Location during demo would be the existing roll up door

57. 7/21/2022 8/1/2022 b. Lay down area I would recommend in proximity of Building 37.

There is a paved area in front of the building for a contractor trailer and may be adequate power to tie into from the building. Highly recommend chain-link fencing off laydown area for security purposes.

DATE

QUESTION

RECEIVED

DATE

QUESTION

ANSWERED

QUESTION GOVERNMENT RESPONSE

58. 8/1/2022 The table in 1.1B of Section 02 82 11 lists quantities for the amounts of asbestos-containing materials to be abated; however, during the site visit it appeared that some of these quantities may be incorrect (e.g., there appears to be much more than 100 ft of piping below 6” in diameter, and the stack does not appear to have an asbestos lining). Section 1.1.B.1 says the Contractor should satisfy themselves that the amounts are correct, but this would take several hours and result in

Contractors bidding on different amounts. Can you please confirm the quantities?

Not all <6” pipe insulation contains ACM. Bulk sampling results and lab reports are provided in the Mabbett Regulated Building Materials Survey Report for Building 39 dated January 18, 2021.

The interior of the stack was not entered or sampled by the environmental consultant.

59. 7/21/2022 8/1/2022 Should asbestos remediation firms use the Laborer

(Common or General) wage rate? On some Davis-Bacon jobs we use the Laborer worker classification, but on other jobs we are told to use the Asbestos Worker /

Heat & Frost Insulator rate. The Asbestos Worker / Heat

& Frost Insulator rate isn’t provided on General Decision

Number: KS20220034 04/08/2022, so we think we should use the Laborer rate, but want to confirm.

Recommend reaching out to Titan Abatement for a real time labor rate.

DATE

QUESTION

RECEIVED

DATE

QUESTION

ANSWERED

QUESTION GOVERNMENT RESPONSE

60. 7/21/2022 8/1/2022 Section 02 82 11 has several requirements that exceed

OSHA, EPA or KDHE requirements or are not required at all (e.g., having a Contractor Professional Industrial

Hygienist, triple layer walls/ceilings/floors in the decontamination facilities, double layered containment walls, erecting secondary barriers and walkways each day, double layers of lockdown encapsulant, having both the VPIH and Contractor monitor air outside the containment and doing two clearances of the containment, requiring fire retardant sheeting, negative air machine gauges/warning device/daily verification requirements, numerous documentation requirements, air test requirement, etc.). Together, these will add tens of thousands of dollars of incremental cost to the project without corresponding benefit. Is the VA sure they want to include these requirements in the spec?

Question is not specific and cannot answer.

61. 7/21/2022 8/1/2022 Part 3.2.D.1. of Section 02 82 11 says it will list where

Amosite is present, but it does not. Can you please clarify if any Amosite is present? If so, where and in what quantities?

Recommend reviewing the Asbestos Report dated 9-18-2020 provided (survey), conducted by ENCON International. I will provide a copy in this response.