36C26319B0010-0003001.pdf

437-14-112 - REPLACE BOILER PLANT

IFB 36C26319B0010

BID QUESTIONS RECEIVED

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SPEC QUESTION ANSWER

1 Specification Section 09 67 23.20

This is a high-build system, but the room finish schedule says most of the floor finishes are “epoxy paint”. The spec is not epoxy paint!

REF: Specification Section 09 67 23.20 for Floor Paint, Resinous Epoxy Base.

2 Not Applicable

What is the blast weight and the standoff distance required for the storefront glass on the plan south side of the building?

The specification assumes that the storefronts and aluminum windows are to be blast resistant per the PSDM (Physical Security Design Manual), however, the Fargo VA requested and was given approval of a waiver dated July 25, 2016 that requested that the “PSDM addresses ‘equipment replacement’ projects in that only those physical security requirements pertaining to the specific systems are applicable, in this particular project, specific to the boiler equipment.” Therefore, it is our understanding that replacement glazing and storefront/alum systems indicated in the drawings do not need to be blast resistant.

3 Not Applicable

Who is the Controls contractor for the VA Campus? Can you give contact information?

There is more than one controls contractor at the Fargo VA.

DDC – Direct Digital Control Contact: Logan Biffert Address: 15 21st Street S., Suite 202, Fargo, ND 58103 Phone: (701) 232-1757

G&R Controls Address: 5425 51st Ave S, Fargo, ND 58104 Phone: (701) 237-3763

4 Specification 01 00 00, General Requirements

Is it possible to conduct an unmanned site visit for estimating personnel that could not make the first one?

No. See specification 01 00 00 General Requirements paragraph 1.2.B regarding site visits.

5 Not Applicable Do you know the project timeline is for this one? Looks like it is 660 calendar days from

NTP is anticipated to be issued so that work can begin October 2019. 660 Calendar Days would set the completion date at July

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notice to proceed (NTP). Would the NTP be issued this Summer, Fall, Winter?

2021. It was anticipated that this would allow for time to have submittals approved, materials on site, temporary boilers (all required permitting, etc. on site and ready for connection to the steam distribution system by June 2020 with work to install and test new boilers and supporting equipment, permits, etc. from June 2020 to June 2021.

6 Drawing E1 Light Fixture types B1 and V1 are shown on the lighting plans but are not shown on the Luminaire Schedule. Please add them to the lighting schedule.

Revise all instances of Type B1 fixtures on the floorplans to Type A2, see luminaire schedule for requirements. Type V1 is shown on the Luminaire Schedule, between the U1 and the W1.

7 Not Applicable We noticed that their a 3D model of the boiler room on the site plans. Is it possible to get the 3D Drawing in CAD REVIT or whatever form it is in? No – REVIT model is not part of the contract documents.

8 The plans reference roofing the new penetrations into the existing roof and also talk about removing the entire membrane and top layer of insulation then installing new insulation and membrane. The specs seem to describe the later, but also specify installing the new insulation in adhesive over the existing insulation. The manufacturers will not warrant new roofs installed over the existing insulation with adhesive. They will warrant it if we install with fasteners through the insulation to the steel deck if in fact it is a steel deck. If it is a concrete deck, we will need to remove the existing insulation to the deck as well. Please Advise.

Remove all roof insulation and install new roofing system from the roof deck up.

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9 Not Applicable Can you send me a link to look at the mechanical drawings & specs for the Fargo VA Boiler house replacement?

This link is on Fed-Biz Ops. Use www.FBO.gov or www.FedBizOpps.gov and at the Keyword/Solicitation # box enter 36C26319B0010 and a link to the project is brought up.

10 Drawing Sheets P4, P5 and Specification 02 40 00, Plumbing Fixtures

Fixture P-530 is on sheet P-5, but not called out in the spec book. Also fixture P-401 is in the spec book, but not on the plans?

All instances of P-530 shown on the project drawings should be changed to P-401.

11 Drawing P4

On sheet P-4 there is a note to install a 1” airline to (2) ¾” 75 ft. spring return hose reels. Are they reusing existing or are they owner provided?

These are to be new hose reels provided under the contract by the construction contractor.

HOSE REEL specifications:

A. Provide hose reels mounted on wall at height above the floor as noted on plans.

B. Provide an auto-retractable hose reel suitable for 250 psi compressed air service. Hose reel shall include permanently lubricated bearings, vibration-free self-locking latch, corrosion resistant powder coated finish, multi-position ratchet lock, reinforced ribs, guide arm, composite spool, 4-direction non-sag rollers, tension adjustment, and full-flow swivel to prevent leakage.

C. Provide 3/4” compressed air inlet and 3/4” outlet and 3/4” hose. Hose length shall be 75-feet.

12 Drawing P4

On sheet P-4 there is a note to provide and install a new emergency eye wash station, however there is no water piping schematic?

1-1/4” CW line is noted as being delivered to WH-3. The equipment schedule and specification for WH-3 note this as being a tepid water heater specifically for emergency use.

Provide piping between water heater and emergency shower with isolation valve. Follow water heater manufacturer recommendations for final placement or location of heater in relation to point of use.

13 Specification 22 33 00 Pg. 5

On page 22 33 00-5 of the spec book calls for a stainless steel drain pan to contain the volume of the water heater which is 20 gallon. Is the

Contractor to determine means and methods of drain pan installation and to coordinate proposed drain pan design for approval by Engineering prior to fabrication. The box or drain http://www.fbo.gov/ http://www.fedbizopps.gov/

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water heater to fit in a box? And where do they want the pan and relief valve spill line ran to?

Plumbing sheets P-4 & P-5.

pan shall not interfere with normal operation and maintenance of the water heater.

14 Specifications 23 21 11, page 10, paragraph

2.8 A and 22 11 00, page 6, paragraph 2.3.B

In the spec book page 23 21 11-10 /2.8 A city water: see section 22 11 00 Facility water distribution. Note B states all copper pipe shall use solder fittings. In section 22 11 00-6/ 2.3B states mechanical press fittings 2in. and smaller can be used. Please clarify.

For all copper water piping, press fittings are allowed for 2” and smaller.

15 Specification 22 11 00, page 6, paragraph 2.3.B

Can mechanical press fittings be used on pipe bigger than 2in., in lieu of grooved fittings? No – refer to spec section 22 11 00 page 6 item 2.3.B.3

16 Not Applicable

The Boiler Plant has a dangerous gas detection system and it appears there is a note missing regarding interconnection to the remote alarm panel located at the facility telephone operator’s desk or room.

The boiler plant dangerous gas detection system must remote alarm in Main Building at the Telephone Operators desk. There is an existing Honeywell model 301AP alarm panel that is compatible with the existing system. If the new dangerous gas detection system is not compatible with this alarm panel then a new panel and interconnection must be included. Provide new for existing alarms, panels, interconnection components, conduit, wiring, underground work, etc. that cannot be reused in order to provide a completely functional and warranted system.

Drawing C1, C2, P3 The site utility plan does not show the two storm lines on the east side of the building.

Where’s the 6” storm sewer piped up to the building form a previous project?

Refer to sheet C1. The existing storm sewer shows an 8” PVC line extending from the north manhole to the west towards the east wall of the building. The second storm line is located just south of this manhole an also extends to the east wall of the building.

18 Drawing C1, C2, P3 The sewer leaving the lower level is indicated as a storm sewer, correct Indicated as sanitary sewer.

19 Drawing C1, C2, P3 Where’s the underground demo and new natural gas? All by local utilities

Natural gas demolition is shown on sheet H3. New meter is shown on sheet H6. Contractor is responsible for all natural gas work, including an costs required by the utility. Some work is

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noted to be by the natural gas utility, but this shall be included in the contract as a subcontractor.

20 Drawing C1, C2, P3 Will cold water site utilities connections disturb cold water supply? If so for how long

No. These temporary connections to the existing watermains will be done by wet tap. No shut down will be required.

21 Drawing P00 Mechanical piping symbols and abbreviations on the cover sheet do not match the plans

Comment is too general, provide further comments regarding what issues this causes for bidding.

22 Drawing P1 to P4 Providing a new cold water service 5 feet from the building up into the lower level would cut off the water to the water softeners. How to keep them operational

There will be a period of time during construction when the existing water softeners will be out of service for connection of new 4” domestic water line. Contractor to coordinate shutdown timing and duration with Owner and engineer during construction.

23 Drawing P1 to P4 Alt bid #4. Does the epoxy coating for the sanitary just for the waste pipe in the boiler room or does it include the waste main under the office area to the building exit Bid is for just the boiler room.

24 Drawing P1 to P4 Connect to exiting is indicated on the sanitary leave the building to the east, is this for a new sanitary main up to the building

Plumbing sheet P-3 does not indicate connecting to existing on the 4” sanitary pipe leaving the east side of the building.

Drawing A201, S101 and P1 to P4

Is the new floor drain next to the lower level pit going to be in a new trench? See A201, S101 Existing trench.

26 Drawing P1 to P4 Alt bid #9. How are the water softeners, emergency booster pump and emergency transfer pumps to remain operational during lower level slab replacement? Temporary equipment in a temporary building next to the emergency cold water storage tank?

Means and methods is up to the contractor. Consideration should be given to pouring the equipment pads first, resetting, the equipment, and then reinstalling the rest of the floor. This would ideally be coordinated with the city water shutdown required for the new water service.

27 Drawing P2 and P5 Is the shower on the upper level getting a new head and valve?

Correct, noted as such on drawing P2 and new is specified in section 22 40 00.

28 Drawing H1 Who provides and installs above ground temporary conduits for the med gas alarm, fuel tank monitoring? See sheet notes

Above ground conduits for mechanical system alarms are to be provided and installed by the mechanical contractor.

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29 Drawing H2 How and what type of supports to use for the temporary boiler stacks that need to extend 40 feet above grade? Note 6

Means and methods to be determined by the contractor and the supplier of the temporary boiler/boiler stacks.

30 Drawing H2 Stairs for the temporary boilers are indicated by both M.C. and temp boiler supplier. By which one? Mechanical contractor is responsible for the temporary stairs.

31 Drawing H2 The temporary elec. condensate pump and receiver is to be located above the lower pit during the removal of the lower level floor and sewer piping. This could be large and heavy, is it to be suspended from the ceiling structure?

The temporary pump is shown on plan in the condensate pump pit. The collection header (not the pump) is noted as being above the pump. The pump is to be set in the bottom of the condensate pump pit.

32 Drawing H2

After the temp boilers are installed, where is the 4 inch blowdown line and water softener drain that drains into storm pipe on the lower level? While removing the floor/ storm sewer where are they to drain to? Safety issue?

There are several references to a storm sewer on the north side of the building in the lowest level. There is no storm sewer in the lowest level of the boiler plant, this is a sanitary line.

Contractor to determine an alternate drain location if a construction sequence cannot be determined to allow for the 4” drain line to continuously drain to location shown.

33 Drawing H2 and H6 Temp location for propane tank indicated and referred to H3. Not shown on H3, or any piping?

It is relocated just to be “out of the way” during construction. It will only be repiped for the new boilers. See sheet H6 for new piping

34 Drawing H3

Note 17. What is V.I.S.N. metering metering?

Also see sheet H6.

V.I.S.N. = Veterans Integrated Service Network.

V.I.S.N. Metering is a reference to VA’s advance utility metering system that shall remain in place or be reinstalled in place to monitor and provide information on utility usage to a remote database. The system shall operate with the new boiler plant equipment similar to how it works with the current or existing equipment.

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Plant investigation will be required to fully understand this note.

There are two rows of meters, with each row having 3 meters in

it. The top row of meters (3 total) shall be replaced. The bottom row of meters shall remain as-is.

35 Drawing H3 For removal of the existing boilers, DA tank and surge tank do we have info on how much they weigh? This information is not available.

Drawing H4. & H6, 2/H14

The surge tank and deaerator catwalk extend almost up to the existing steel pipe support rack. It appears the existing equipment will need to be cut apart to be removed and part of the catwalk also to get the new Da and surge tank into place. The catwalk portion that needs to be removed would have to be removed and reinstalled by the G.C.

Single prime project. All elements of the construction shall be covered by the prime contractor in one form or another.

There are provisions in the structural drawings for demolition of a portion of catwalk to facilitate removal of old and installation of new equipment.

37 Drawing H4. & H6, 2/H14

The existing Da and surge tank sets on a large steel platform that is on top of the existing concrete pad. Is this to be removed and by who? This is to remain.

38 Drawing H5 Note 14. Is a steam relief vent through the roof? Change to Note #13.

39 Drawing H6 No sections are provided for the work on the lower level. Specifically the new pit, equipment arrangement. If the new floor is installed in the lower level would the floor drain next to the pit be in a new concrete trench? Existing trench to remain.

40 Drawing H6 Where and what size is the gas connection to the outside of the building for emergency boiler connection? See 2/H16

Provide 3” line. Final location to be coordinated during construction.

41 Drawing H6 Note 1. Description conflicts with the description for Bid Deduct Alternate #10, stack economizers. Also on H7, H15 details 2 & 7.

Base bid is installation of new boiler stacks and economizers as shown on the plans.

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SPEC QUESTION ANSWER

Please clarify boiler stack work and new stack economizer work.

If the deduct alternate is chosen, the existing stacks will be reused. To reuse the existing stacks, the existing economizers will be demolished and the space from which the existing economizers were removed shall be infilled with stack per Specification Section 23 51 00. If deduct alternate is chosen, all existing stack insulation shall be removed and new stack insulation shall be provided for entire stack.

42 Drawing H6 Does the DA tank and surge tank come with the pumps pre-piped on the skid for single point connections?

This is a means and methods question. All requirements of the skids are included in the specifications and drawings. Contractor to coordinate fabrication of the skids with the chosen equipment supplier and their Own field labor.

43 Drawing H13 Can the boiler manufacture add a header valve and a short spool piece after the Non-return steam valve to eliminate the amount of PP piping No

44 Drawing H15 What is the size of the bypass line for PRV-1A, 1B? 4”

45 Drawing H15, Specification 23 21 11

On detail 2, EV-1, EV-2 are emerge gas shut off valves. No Schedule provided?

Specification section 23 21 11 has the requirements of these valves detailed.

46 Drawing H20, Specification 23 52 33

Boiler schedule, need the manufacture to supply boiler ladders and platforms.

Correct, by boiler manufacturer as noted in specification section 23 52 33.

47 Drawing H20 Sump Pump indicated a 24”X30” deep poly sump pit. Is sump to be in the bottom of the pit or just the pump in the pit and no plastic pump?

Sump goes in the bottom of the condensate pump pit with the pump inside of the sump.

48 Drawing H20 Blow down separators can discharge fast splashing water. Is the trench drain and 4 inch waste line going to handle it? Yes.

49 Sheet H20, Specification 23 50 11 The DA safety valve is not scheduled.

Closer attention should be paid to the specifications, minimum requirements for this valve are called out in Section 23 50 11.

50 Sheet H20, Specification 23 09 11

The gas, water, oil, steam flow meters are not scheduled.

Closer attention should be paid to the specifications, requirements for these meters are called out in Section 23 09 11.

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Meter capabilities can be further defined during construction and shop drawing review.

51 Drawing H20, Specification 23 50 11 Steam Silencer is not scheduled.

Closer attention should be paid to the specifications, this is detailed in section 23 50 11.

52 Not Applicable Will the VA approve pay requests that include equipment that is not on site but requires the Contractor to pay a percentage down before fabrication can proceed? (i.e. boilers, DA, Surge tank) No

53 Not Applicable Who is responsible for insuring the temporary boilers? The Contractor

54 Not Applicable Please confirm this project should include ND state/local sales tax? Yes

55 Specification 01 35 26 Please confirm the Project Superintendent can also serve the role as Quality Control Manager and SSHO

Refer to Specifications Section 01 35 26 Section Safety Requirements Paragraph 1.7 for information on SSHO. The Site Superintendent may be the Quality Control Manager.

56 Specification 01 91 00 Please confirm the contractor is hiring the CxA direct? The contractor is required to hire the commissioning agent.

57 Specification 01 91 00 Operation & Maintenance Training Requirements: Please verify if this section will be enforced as part of this solicitation. Is it the Government's intention that the contractor engage in the commercial production of a compilation of professional training videos as detailed? Yes

58 Specifications 23 21 11, 2.25 & 23 21 11, 2.29

Piping Support System: Please confirm these engineered documents (delegated design) are required (outside of the current plans)?

Correct, this is delegated design and needs to be included in the Contractors bid.

59 Specifications 22 05 11 & 23 05 10

Layout Drawings: Requires complete consolidated and coordinated layout drawings for all new systems, and for existing systems

Drawings to be published for record in AutoCAD but can be created in another program. It may be helpful to create a 3D model of the systems for clash detection. Contractor should also

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that are in the same area. Please advise if the Government requires these drawings in a certain format (e.g., AutoCAD, AutoDesk Revit, etc.)

consider procuring the services of the original design A/E team for clash detection and coordination drawing purposes. The Fargo VA currently utilizes AutoDesk AutoCAD 2019.

60 Specification 23 09 11 Stainless Steel Tubing: Please confirm that the stainless steel tubing requirements (as outlined in 23 09 11) are COMPLETELY depicted on the drawings. We assume that all of the mechanical details and P&ID’s on the drawings outline the extent of the stainless steel tubing requirements.

Drawings and specifications are intended to supplement one another. Piping material may not be noted completely on drawings.

61 Specification 23 09 11 Please confirm that the controls series drawings depict the complete extent of required interconnecting conduit and wiring as required for a complete system (as outlined in 23 09 11)

– including, but not limited to: automatic boiler/burner control system; burner management system with safety interlocks and accessories; boiler/burner control panels;

computer workstation; flue gas oxygen analyzers; flow meters; pressure sensors and transmitters; boiler draft gages; temperature sensors and transmitters; recorders; and boiler plant building dangerous gas detection system

Drawings and specifications are intended to supplement one another. What is specified may not be shown. What is shown may not be specified. Contractor is required for delivering a complete project which meets all requirements of both the drawings and specifications.

62 Specifications Seismic is referenced over a dozen times in the specification, however, there is no Div. 13 specification. Please confirm seismic design/calcs. (delegated design) is not required No seismic design is required.

63 Not Applicable The drawings do not indicate the boilers are grounded. Please provide a grounding detail if required

Grounding detail will be included in boiler power wiring diagram provide by the boiler manufacturer.

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64 Specifications 23 05 10 & 23 05 11, Part 1.3

Quality Assurance: States “all construction firms and personnel shall be experienced and qualified specialists in industrial and institutional HVAC or steam boiler plant construction, as applicable.” What qualification metrics is the Government going to utilize to qualify the level of experience by the bidders/offerors prior to the bid-date (or on the bid-date)? Currently there is no way to qualify those contractors who are bidding.

The specifications referenced are “Common Work…” and as such are general in nature. There is no precertification, preapproval, prequalification, etc. of contractors or subcontractors planned or set up for this project. No metrics have been developed. The statement highlighted is standard language in those specifications other specifications and sections may contain further requirements and paperwork be submitted such as welder’s qualifications and certifications.

65 Drawing Detail 2/Drawing No. H16

States "Main Gas Metering & Regulating Area. Installed by Gas Utility Company. Contractor to coordinate and schedule installation." Please confirm the Government will pay the utility company to set the new meter and regulation station and handle all necessary upstream piping

Contractor is responsible for installation of all new natural gas piping and the natural gas meter. This includes any costs associated with services provided by the natural gas utility. New meter work is noted to be provided by the natural gas company but shall be included in the Contract. See specification 01 00 00.

66 Drawing No. H20, Bidders Note 1

States “In specifying particular requirement, the intent is to indicate the minimum standard of quality and to convey the specific requirements for each equipment type. Contractors may submit other manufacturers and models for the engineers approval prior to submission of bids.” There is not sole source justification for the mechanical equipment, and it is not reasonable to get approval during the bid phase, please confirm any manufacturer that meets spec can be utilized

It is the projects position that any manufacturer which meets specs may bid the project. However, it is SOLELY the responsibility of the bidding contractor and their chosen equipment suppliers to meet the specifications. All risk associated with not meeting specifications will be taken by the contractor. Products which are found to not meet specifications during construction will not be allowed and the contactor shall be responsible for any and all costs incurred to provide a product which meets specs.

67 Specification 23 05 10, 2.0-G

States “any alternate temporary boiler room must be submitted to the Engineer for prior approval and must meet or exceed the scope of

There is no sole source justification for the temporary boiler rooms. However, it is SOLELY the responsibility of the bidding contractor and their chosen equipment suppliers to meet the

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supplier of the specified temporary boiler room.” Is there sole source justification for the temporary boilers? Approval during the bid phase is not reasonable specifications. All risk associated with not meeting specifications will be taken by the contractor. Products which are found to not meet specifications during construction will not be allowed and the contactor shall be responsible for any and all costs incurred to provide a product which meets specs.

68 Specification 01 00 00, 1.21

Photographic Documentation: The referenced section is extensive and will be expensive (and will require a firm to be hired to address). Please confirm if required? Yes, required.

69 Not Applicable Please confirm the Government will make down payments on the boiler equipment per the Boiler manufacturer payment terms. All boiler manufacturers require a certain percentage down for misc. deliverables. Will the contractor be on the hook to finance these boilers until they arrive onsite?

The Government shall not make down payments. Contractor responsible for payments to boiler manufacturer until boilers on site. Boiler on site, but not installed that payment is requested for shall be treated as stored materials and require additional paperwork be provided with the pay request.

70 Not Applicable Will the Government allow the contractor to submit a fast-track schedule that allows the contractor to finish in much less time than (660) calendar days (per the solicitation), or shall the contractor carry labor/general conditions/overhead in their bid for (660) calendar days?

Yes, but the schedule is still subject to other contract terms and conditions. For example, the Fargo VA shall not allow a winter steam shutdown to connect temporary boilers to the steam distribution system, this work needs to be scheduled during the summer or non-heating season for as a short duration shutdown.

71 Drawing H2

Is the fuel oil for the temporary generator provided by the Government?

Yes, fuel oil for the temporary boilers is provided by the Government as long as the existing fuel oil in the VA tanks is the type required by the temporary boilers and the following is sufficient to meet the requirements of the temporary boilers being provided: drawing H2 allows the construction contractor to “CONNECT TEMPORARY 1” FUEL OIL SUPPLY AND RETURN PIPING TO EXISTING PIPING AT LOWER LEVEL” and shows these lines connected to the temporary boilers.

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72 Not Applicable Division 01 did not include a schedule specification; who owns float in the project schedule, the contractor or the Government?

The schedule should be developed for continuous work under the project, there should not be any “float” or “slack” in the schedule. The Government owns float unless agreed to otherwise by the Contracting Officer.

73 Not Applicable Please confirm the government owns the warranty on the water treatment equipment (relocated per solicitation documentation), and if the equipment does not work once relocated, it is not the responsibility of the contractor to remedy?

The VA boiler plant staff may be requested to demonstrate full operation of the water treatment equipment (pumps) noted to be relocated prior to the contractor beginning work. Any issues with the system equipment shall be corrected by the VA. Any issues after a successful demonstration shall be corrected by the contractor at no additional cost to the Government.

74 Drawing No. E11 Motor and Equipment Schedule: Does not indicate a VFD for the forced draft fan motors for B-1 – B-3 or the pumps associated with the deaerator and condensate storage tank. Please confirm VFDs are not required for these pieces of equipment. 23 50 11, 2.5 indicates the FW pumps receive drives, but this is not outlined on the equipment schedule or motor schedule?

Boilers B1-B3: VFDs provided with this equipment are part of the single point electrical connection.

Motor controls/VFDs for the condensate pumps and deaerator pump VFDs are included on the skid, and part of the single point electrical connection.

Feedwater pumps are existing/relocated pumps and require a motor starter per the Motor and Equipment schedule.

75 The equipment schedule does not provide a schedule for the steam vent silencer, chemical treatment pumps, and the three (3) 300 gallon stand-by Boiler Feedwater Storage Tanks. Please provide.

Steam vent silencer and storage tanks do not require power.

Chemical treatment pumps have cord and plug connection, see duplex 120V receptacles and note on sheet E6 for location.

76 Specification 23 51 00 and Drawing H3, Note

The specification includes 23 51 00 (stacks), but Drawing H3, Note 1 states to use the existing stack. Please confirm the Government does NOT want a new stack See response to item #41

77 Drawing H11 The plan page H11 it shows the ductwork for the VAVs and the Boiler floor area coming from the same units. The boiler floor area ductwork is

Both units are variable volume. There are no constant volume AHUs included in the project

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a constant volume system. The VAV boxes are Variable volume system. Normally you have an AHU for the Constant volume system and an AHU for the Variable air flow system. Shouldn’t the VAVs be on their Own AHU?