AMENDMENT 0005.pdf

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore changed, remains unchanged and in full force and effect.

15A. NAME AND TITLE OF SIGNER (Type or print)

30-105-04EXCEPTION TO SF 30

APPROVED BY OIRM 11-84

STANDARD FORM 30 (Rev. 10-83) Prescribed by GSA

FAR (48 CFR) 53.243

SOLICITATION NO. N40085-20-R-0079 DESIGN-BID-BUILD (DBB), REPLACE COOLING WATER SYSTEM, BUILDING 633, PHILADELPHIA

NAVAL BUSINESS CENTER (PNBC), PHILADELPHIA, PA

The purpose of this amendment is to provide responses to Pre-Proposal Inquiries (PPI's), an updated Price Proposal Form and an updated Wage Determination.

The proposal due date of 28 January 2021 NLT 2:00 PM EST remains unchanged.

See Continuation Page(s).

1. CONTRACT ID CODE PAGE OF PAGES

J 1 42

16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)

16C. DATE SIGNED

BY 25-Jan-2021

16B. UNITED STATES OF AMERICA15C. DATE SIGNED15B. CONTRACTOR/OFFEROR

(Signature of Contracting Officer)(Signature of person authorized to sign)

8. NAME AND ADDRESS OF CONTRACTOR (No., Street, County, State and Zip Code) X N4008520R0079

X 9B. DATED (SEE ITEM 11)

30-Nov-2020

10B. DATED (SEE ITEM 13)

9A. AMENDMENT OF SOLICITATION NO.

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

X The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offer is extended, X is not extended.

Offer must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended by one of the following methods:

(a) By completing Items 8 and 15, and returning copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;

or (c) By separate letter or telegram which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN

REJECTION OF YOUR OFFER. If by virtue of this amendment you desire to change an offer already submitted, such change may be made by telegram or letter, provided each telegram or letter makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

12. ACCOUNTING AND APPROPRIATION DATA (If required)

13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACTS/ORDERS.

IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE

CONTRACT ORDER NO. IN ITEM 10A.

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation date, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(B).

C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority)

E. IMPORTANT: Contractor is not, is required to sign this document and return copies to the issuing office.

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

10A. MOD. OF CONTRACT/ORDER NO.

2. AMENDMENT/MODIFICATION NO. 5. PROJECT NO.(If applicable)

6. ISSUED BY

3. EFFECTIVE DATE

25-Jan-2021

CODE

NAVFACSYSCOM MID-ATLANTIC

ACQUISITION CORE

9324 VIRGINIA AVENUE

NORFOLK VA 23511-3095

N40085 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

N4008520R0079

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

SECTION SF 30 - BLOCK 14 CONTINUATION PAGE (SF 30)

The following have been added by full text:

AMENDMENT 0005

Contractor

PPI#

Section of RFP or Page Number

Paragraph Reference

Drawing Number

Question RESPONSE

1 C1/S-504 Have the existing roof steel in building 519/520, and any other existing steel locations, been analyzed as adequate to support new loads?

Existing structural elements, except the following, have been verified to be adequate to support new loads. Existing steel framing used to support piping in the mezzanine level of Area 519/520 has not been analyzed by WRA. The design of pipe supports in this area, including analysis of existing steel elements used to support the new pipes, must be shown to be adequate by the Contractor's engineer.

Existing steel dimensions must be field measured by the Contractor. For analysis purposes assume a steel yield stress of 30 ksi.

ADDENDUM

LANGUAGE:

Add the following after the third sentence of Delegated Design Note 3 on S-001, "Provide calculations verifying the adequacy of the existing steel framing and connections up to the existing columns."

Add Structural Steel Note 7 to S-001, "7. For analysis purposes, assume existing steel has a yield stress of 30 ksi."

2 MD105 Since Bldg 531 is not normally occupied can any outages be performed during normal work hours/days?

Per specification and drawings, all outages must be arranged and scheduled in advance via the contracting officer. Outages shall be performed outside normal working hours. Please provide 21 days advance notice.

3 Are there any work restrictions based on CTF testing?

Please see SPC Section 01 14 00 for work restrictions.

4 Will any of the bridge cranes in Building 633 be available for contractor use?

Specifically the north bay bridge crane for removal of the existing steel duct 24- 28' AFF at CL F11- 19.

Please see G-005 General Sheet Notes #5 for bridge crane usage.

5 Structural Steel note

S-001 This note states "Coat structural steel with high performance coating as specified."

However, there is no specification as to which steel members receive certain high performance coatings. Please provide direction as to which steel members receive the specified coatings.

All structural steel shown must receive a high-performance coating as specified in specification section 09 96 00. This inlcudes all steel shown on structural drawings and mechanical drawings (pipe supports, cooling tower supports, etc.)

6 Should the exterior structural steel be galvanized instead of painted?

Provide a high-performance coating for all structural steel, including exterior steel.

7 M-001, note

In coordinating potentially disruptive work with building occupants will the Government require that this work be completed outside the normal hours of 0700

– 1530, Monday – Friday?

Disruptive work is not exclusively required to be completed outside of normal hours (defined as M to F, 0700 to 1530), however, this depends on the nature of the disruptions. Any work that is considered disruptive shall be scheduled and coordinated via the contracting officer.

8 23 05 93 Para 1.3 Is there any testing, adjusting, balancing (TAB) required for the relocated Air Cooled Condensing Unit (ACCU) at building 531?

No TAB is required for the associated indoor AHUs asssociated with the relocated ACCUs.

9 01 78 00 1.6.1.c Is it accurate to assume that the standard 1-year builders’ warranty would not apply to the relocated ACCU since their age/condition is not known and that maintenance of any existing warranty is the responsibility of the Government?

The stated assumption is correct.

10 C4/M-501 Note 3; S-001 Delegated Design Note

As this is a DBB, for bidding purpose contractors must assume that the specified cooling tower will work (weight and dimensions) with the structural steel frame support as designed by WR&A, likewise for structural pipe supports. Please confirm.

Undersood. However, the Delegated Design Note 3 on S-001 applies to the pipe supports in the mezzanine level of Area 519/520, not the cooling tower. The basis-of-design cooling tower dimensions and weights used to design the steel supports are indicated on S-001 Design Loads. Contact the Contracting Officer if the dimensions and/or weight exceed that indicated.

Contractor must coordinate steel shop drawings with approved cooling tower shop drawings.

ADDENDUM

LANGUAGE: Add Note 1.D to Design Loads on S-001, "D. Contact the Contracting Officer if submitted cooling tower weight and/or dimensions exceed those indicated."

11 MD-102 Are steel pipe supports that are not called out to remain required to be removed? i.e 20"

RWR

Correct, pipe supports that are not called out to remain must be removed when associated piping is being removed.

ADDENDUM

LANGUAGE: Add Note 3 to General Sheet Notes on

MD102, "3. Remove existing pipe supports not indicated to remain where associated piping is being removed."

12 Page 1, RFP Since AAM 212 has been rescinded and AAM 235 was released by the Trump Administration does this remove the application of the Davis-Bacon act for survey crews for this project?

Propose to RFP.

13 31 62 19 S-102 Regarding the last pipe support before entry into building 633, this is an extremely tight space between B531 and B520 such that any means and methods for doing so may not prove feasible. Is the Government amenable to alternate deep foundation options for this location if needed?

Alternate deep foundation options would be considered for the referenced location in accordance with the specification Section 01 33 00 Submittal Procedures, Paragraph 1.8 Variations which includes provisions for a Value Engineering Change Proposal. Contractor's engineer must submit stamped and signed calculations for approval showing the proposed alternate deep foundations are at least equal to piles indicated on the Drawings. Submission of proposed alternate foundations does not guarantee approval.

14 Can any additional photos taken by

NAVFAC/NSWC

personnel be made available prior to the bid due date?

Additional photographs taken during 12/17/2020 site visit are provided. Photos are provided with this Amendment.

15 Please confirm whether or not Division 23 09 13, 23 09 33 and 23 09 53, automation technicians are to be paid prevailing wages to match Electricians’ rate.

NAVFACSYSCOM is not the determining authority on the assignment of prevailing wage rates. This contract could potentially be audited by the Department of Labor for adherence to the wage decision.

16 Regarding Specification 23 09

53.00 20 Page 4, Paragraph 1.10.1, the proposed products must include a minimum of 2 years satisfactory commercial or industrial use. Please confirm, company qualifications for Division 23 09 53.00 contractors. Shall any firms not regularly engaged in completed project at the Philadelphia Navy Yard likewise have a minimum of 2 years’ experience implementing the proposed products.

The referenced specification does not apply to the installing contractor. Refer to para. 1.2 and 1.4 for subcontractor special requirements and system requirements.

17 Specification 23 09 33 Page 5, Paragraph

2.3.3 Individual

System Control Panels – please confirm controllers to be used for these panels and as shown on drawings shall be BACnet Advanced Application Controllers, fully programmable and able to provide standalone operation as shown on drawings.

The referenced paragraph describes the control panel enclosure and general contents within. Controllers and control devices must comply with the requirements as specified for those for individual components.

Controllers should be fully programmable and able to provide standalone operation, but are not restricted to those that are certified as BACnet Advanced Application Controllers. If BACnet is used, controllers need to be able to seamlessly interface BACnet and Ethernet/IP systems.

18 Specification 23 09 33 Page 7, Paragraph

3.3.1 Operator

Training – If a new DDC System is proposed other than the existing Automated Logic WebCTRL system, shall the bidder include more than 8 hours of training?

The 8 hours of training identified in this section is specific to the devices and equipment specified in this section. These training hours may be incorporated into the more extensive training described in Section 23 09

53.00 20. Note that DDC is not the intended control method at present. As is noted in 23 09 53.00 20 para.

1.4 "provide control systems composed of any combination of electric or analog electronic devices" with the intent that the new equipment can be made to easily interface with the existng DDC system in the future. See also para. 1.6

19 Specification 23 09 53 Page 14, Paragraph 3.4 Training is more detailed, including additional requirements beyond those specified in 23 09 33 Paragraph 3.3.1 Operator Training.

Please clarify training requirements.

The 8 hours of training identified in Section 23 09

33.00 40 is specific to the devices and equipment specified in that section.

Those training hours may be incorporated into the more extensive training described in Section 23 09 53.00 20

20 Specification 23 09 33, Page 7 Paragraph

3.3.12. Special Tools

– If a new DDC Systems is proposed other than the existing Automated Logic WebCTRL system, please confirm it is the intent of this paragraph that the new system vendor shall provide all necessary software tools to permit the Navy to self-perform all programming and database manipulation of the DDC system.

Correction: information provided in paragraph 3.3.2.

Concur, intent of the paragraph includes all necessary software tools, as well as any associated hardware required (e.g. a specifically designed cable needed to connect to the controller for software adjustments)

DDC is not the intended control method at present. As is noted in 23 09 53.00 20 para. 1.4 "provide control systems composed of any combination of electric or analog electronic devices" with the intent that the new equipment can be made to easily interface with the existing DDC system in the future. See also para. 1.6.

21 Specification 23 09 33 Page 7, Paragraph

3.3.12. Special Tools

– shall the new control panels provide the ability to be programmed utilizing the existing tools owned by the Navy for the existing system?

Correction: information provided in paragraph 3.3.2.

While preferred, this is not necessary. If programming requires new tools, those shall be provided to the Navy. It is preferred that the software necessary to implement changes can be used on a Windows 7 or 10 operating system for lab development.

Where applicable, existing tools owned by the Navy may be used; however, that is not a strict requirement.

22 Specification 23 09 33 Page 7, Paragraph

3.3.12. Special Tools

– If a new DDC Systems is proposed other than the existing Automated Logic WebCTRL system, please confirm it is the intent of this paragraph that the new system vendor shall provide all necessary administrator level usernames and passwords to permit the Navy to self-perform all programming and database manipulation of the DDC system.

Where applicable, existing tools owned by the Navy may be used; however, that is not a strict requirement.

ADDENDUM

LANGUAGE: Add the following sentence to the end of paragraph 3.3.2 in section 23 09 33.00 40, "Where applicable, existing tools owned by the Government may be used."

23 Specification 23 09 33 Page 7, Paragraph

3.3.12. Special Tools

– please confirm administrator level usernames and passwords shall be provided to the Navy at the time of submittals.

DDC is not the intended control method at present. As is noted in 23 09 53.00 20 para. 1.4 "provide control systems composed of any combination of electric or analog electronic devices" with the intent that the new equipment can be made to easily interface with the existng DDC system in the future. See also para. 1.6.

All administrator level usernames and passwords shall be provided.

24 Specification 23 09 53 Page 2, Paragraph

1.4 - please confirm the future interface of the new panels with the existing Automated Logic WebCTRL system shall be seamless without the need for a new separate system database.

DDC is not the intended control method at present.

New equipment must be compatible with the existing control system so as to be easily interfaced with the existing DDC system in the future.

25 Please confirm the new Pressure Sensors shown on M-107 shall be hardwired to the stand-alone control panels CWCP-1 and LCP-

HX2.

Correct - each of these new sensors should be hardwired to the new stand-alone control panels.

26 Drawing M-607 regarding the status lights for cooling tower status. Please confirm the intent is to hardwire status and alarm points from the cooling tower/pumps to the CWCP-1 panel controller and not through integration.

Correct - intent is to hardwire status and alarm points.

27 Drawing M-607 regarding the status lights for cooling tower status. Please confirm the intent is to hardwire status and alarm points from the cooling tower/pumps to the CWCP-1 panel controller and not

Correct. Devices should be hardwired.

directly to the status lights. Wiring the input points to the CWCP-1 panel controller will provide some trend information is needed for the Navy.

28 Should a small stand-alone PC be provided in one of the control panels to provide trending of some duration? (1 month, 2 months, etc.)

No, a stand-alone PC should not be provided.

29 Drawing M-609 – is the network wiring shown intended to be CAT cable or twisted shielded pair?

Communication between DDC modules should be wired with a cable capable of handling Ethernet/IP data transmission. Cables used for equivalent needs in the facility currently are standard Cat5 cables.

The network wiring (shown between DDC modules in LCP-1, LCP-HX2, and CWCP-1) must be twisted shielded pair.

30 Please provide network wiring specifications to meet the network infrastructure shown on Drawing M-609.

Communication between DDC modules should be wired with a cable capable of handling Ethernet/IP data transmission. Cables used for equivalent needs in the facility currently are standard Cat5 cables.

The network wiring (shown between DDC modules in LCP-1, LCP-HX2, and CWCP-1) must be twisted shielded pair.

Refer to paragraph 2.3 on specification 23 09 13 and paragraph 2.10.5 on specification 23 09 53.00 20.

31 Specification 23 09 13 Page 16, Paragraph 3.1.8 references 26 20 00 for Interior Distribution System.

Specification 26 20 00 does not appear to be issued as part of these documents.

Please clarify.

Specification 26 20 00 is included in this project.

32 Specification 23 09 13 Page 16, Paragraph 3.1.8 Wire and Cable states that wiring external to enclosures must be run in raceways.

Please provide further detail regarding control system installation requirements.

It is intended that control wiring should not be exposed and subject to damage. Refer to Div 26 for conduit and raceway requirements. Cable and conduit are manufacturer specific. Required cables and conduits are dependent upon control system approved shop drawings.

33 In what locations is EMT conduit acceptable for the automation scope of work?

Conduit and Fittings must adhere to Specification Section 26 20 00 2.2. All conduit must be Rigid, Threaded Zinc-Coated Steel.

34 In what locations, if any, is Galvanized Rigid Conduit necessary for the automation scope of work?

Conduit and Fittings must adhere to Specification Section 26 20 00 2.2. Rigid, Threaded Zinc-Coated Steel Conduit is used for exterior and interior applications.

35 Please confirm compression fittings are required for all outdoor installation.

Exterior Conduit and Fittings must adhere to Specification Section 26 20 00 2.2. Set screw fittings are not approved for this installation.

36 What are the refrigerant sizes shown for the relocated ACCU’s?

What is the refrigerant type?

Refer to sheet keynote 6 on drawing M-104; size of refrigerant piping must be in accordance with manufacturer's written instructions.

Refrigerant pipe material must be copper Tube, ASTM B280, type ACR, hard drawn straight lengths only, no coil lengths allowed, brazed joints.

ADDENDUM

LANGUAGE: Add paragraph 2.2.3 Type ACR, Copper to section 23 05 15, "Refrigerant pipe material must be copper Tube, ASTM B280, type ACR, hard drawn straight lengths only, no coil lengths allowed, brazed joints."

37 What is the pipe size, material & system for the pipes to be relocated?

Refer to sheet keynote 6 on drawing M-104; size of refrigerant piping must be in accordance with manufacturer's written instructions.

Refrigerant pipe material must be copper Tube, ASTM B280, type ACR, hard drawn straight lengths only, no coil lengths allowed, brazed joints.

ADDENDUM

LANGUAGE: Add paragraph 2.2.3 Type ACR, Copper to section 23 05 15, "Refrigerant pipe material must be copper Tube, ASTM B280, type ACR, hard drawn straight lengths only, no coil lengths allowed, brazed joints."

38 The drawings show butterfly valves.

There are a total of 63 required from sizes 3” thru 24”. The spec lists under 2.4.1, Ball and Butterfly Valves AND 2.4.2 list High Performance Butterfly Valves.

The documents do not indicate if any of the butterfly valves are required to be High Performance?

There’s a big difference in cost to purchase a high-performance butterfly valve. They are usually 4-5 times the cost.

Refer to Spec Section 23 05 15, bottom of page 30.

Butterfly valves on pipe sizes 3" - 6"; High Performance Butterfly valves on pipes larger than 6"

39 M-104 On drawing M-104 Sheet Keynote #13 instructs us to “Provide Swing Check Valve in 24” CWS”. Valve vendors state that they don’t make swing check valves over 14”. Is it OK to substitute a Silent Check Valve for any Check Valve Over 14” shown on the drawings?

Swing check valves are available as 24-in size. Refer to valve manufacturer Milwaukee, model F-2974 for an acceptable swing check valve.

40 23 05 15 2.4.13 Valve vendor also stated that they cannot provide a Venturi Type Balancing Valve for any size over 14”. a.

If a 14” Balancing Valve can handle the required flow would it be acceptable to provide this size valve and reducers from the larger pipe (16” & 18”)?

b. If not, would an Armstrong Flo-Trex Valve be acceptable?

We can get these

Venturi type balancing valves are available for pipe sizes over 14-in. Refer to valve manufacturer IMI Flow Design, model F212.12 AF for acceptable fitting. Triple duty valves are not acceptable.

“Triple Duty” Valves up to 24”.

41 M-106 Sheet Key Notes 14 and 15 on drawing M-106 instruct us to relocate some existing piping.

Please provide the size of this piping and what system it is for so we know what piping material will be required? a. Will this pipe require insulation? If so, please provide an insulation specification?

b. Is key note 14 referring to the existing Unit Heater Flue Piping that is shown on Note 16 on Photograph D2 on Drawing G-008?

Sheet keynote 14 on drawing M-106 refers to sheet keynote 16 on D2/G-008. Sheet keynote 15 on M-106 refers to sheet keynote 22 on D1/-G- 008.

42 23 05 48.00

Is there any Vibration Isolation required on the cooling towers? a.

Spec section 23 05

48.00 40 shows Vibration Isolation on Towers with different Roof-Span Provisions. Since our towers will be mounted on a steel platform off the ground is any Vibration Isolation Required?

Vibration isolation on cooling tower is not required.

43 M-501, M-

Pumps CWP-1/2/3 – The piping detail on drawing M-501 shows the installation of balancing valves and strainers on each of the pumps. Flow sheet M-602 does not show the strainers or balancing valves. The specifications for the balancing valves only go to 14” size. Also, graphically the detail on drawing M-501 shows the balancing valve as approximately 6” long, a 16” balancing valve would be between 18” to 24” OAL. Please clarify.

Refer to detail C1/M-501 for piping and fittings required on

CWP-1/2/3.

Provide pump suction strainers, as indicated on paragraph 2.3.9, specification 23 05 15.

Provide balancing valve, as indicated on paragraph 2.4.13, specification 23 05 15. Refer to valve manufacturer IMI Flow Design, model F212.12 AF for acceptable fitting. The 16-in balancing valve includes butterfly shut-off valve. This valve arrangement is 22 inches long (approximately).

44 23 05 15 2.5.3 Please provide a Basis-of-Design for the Receiver Tank specified in 23-05-15 Section 2.5.3. This will help mitigate potential cost impacts at time of submittal.

Refer to tank manufacturer PVI Industries, model LH 300A-TR for an acceptable receiver tank.

45 M-702 Please provide a Basis-of-Design or detailed specification for the Flow Straighteners scheduled on M-702.

This will help mitigate potential cost impacts at time of submittal.

Refer to pipe fittings manufacturer Vortab for an acceptable flow straighteners.

46 Is vibration monitoring required for the duration of the timber pile driving?

If so, please provide a specification.

Vibration monitoring is not required for the duration of the timber pile driving.

Please note requirements for notification and scheduling of disruptive work.

47 Please clarify the extent of coordination with cybersecurity and electronic security with regard to controls and other electronic equipment

This project does not require security controls. Disregard references to Specification Sections 26 24 13 2.5.4 and 3.4.1.6.

ADDENDUM

LANGUAGE: Delete paragraphs 2.5.4 and 3.4.1.6 in section 26 24 13.

48 262413 2.5.4 & 3.1.4.6

Specifications state “Coordinate the controls system with other electronic systems including but not limited to the electronic security and cybersecurity systems as required.

Furnish a certification that control systems are designed and tested in accordance with DoD Instruction

8500.01 and as required by individual Service Implementation Policy”. Please clarify the coordination with DoD 8500.01, and define who provides referenced certification.

This project does not require security controls. Disregard references to Specification Sections 26 24 13 2.5.4 and 3.4.1.6.

ADDENDUM

LANGUAGE: Delete paragraphs 2.5.4 and 3.4.1.6 in section 26 24 13.

49 Please provide details of grounding requirement for fencing, equipment pads, cooling tower structure, etc.

Provide a ground ring #3/0 AWG bare copper buried 24" below grade encircling the cooling tower structure.

Install copper ground rods 5/8" in diameter by 10'-0" in length, spaced at 20'-0" apart and connect to the ground ring with using #3/0 bare copper.

Ground ring must be tested 25 ohms or less with additional rods if necessary. Include a total of 2 test wells at opposite corners of the structure that are flush with the finished grade. Ground each steel support beam above the grade using #3/0 AWG Bare Copper connected to ground ring. All grounding connections must be irreversible exothermic welds. Grounding for fencing and equipment pads is not required.

50 Drawing E-

Keynote #1 indicates

(4) GRS feeders for the HX2P-1 & HX2P-2 feeders, the feeder schedule does not call for parallel runs, is this an errant note that should be for the MDS conduit runs?

Provide feeders for HX2P-1 and HX2P-2 per the feeder schedule shown on drawing E-701

51 The next 3 questions compare the plan drawings with M-602

M-602 There appears to be a missing 10” Butterfly Valve between the 24” CWR Header and the 3-Way Valve tagged V-2.1. The reason we bring this up is because the flow diagram shows a butterfly valve in this location before the three (3) other 3-way valves (V-1.1, V-3.1 & V-4.1). Is an additional 10” Butterfly Valve Required in this location?

Correct, 10-in butterfly valve is required in this location.

52 M-602 There appears to be a missing 10” Butterfly Valve between the 24” CWS Header and the 2-Way Valve tagged V-1.2. The reason we bring this up is because the flow diagram shows a butterfly valve in this location before the three (3) other 2-way valves (V-2.2, V-3.2 & V-4.2). Is an additional 10” Butterfly Valve Required in this location?

Correct, 10-in butterfly valve is required in this location.

53 M-602 This flow diagram also shows butterfly valve on the 3” Overflow drain connection to each tower. This piping is specified to be cast iron pipe with no-hub connections per Table I in specification schedule 22 00 00 Subsection 3.7 titled “Tables”. In our experience, we don’t have any way to install a Butterfly Valve in Cast Iron Piping. We normally don’t see a valve installed in the overflow drain line for cooling tower applications. Please advise.

Remove butterfly valve from 3-in overflow drain pipe to each tower.

ADDENDUM

LANGUAGE: Sheet M-602:

Remove butterfly valve from 3" overflow drain pipe to each tower

54 Are electrical load banks required for any of the electrical testing or system commissioning? If so, who is to provide?

Electrical load banks are not required on this project.

55 We would like to request a bid extension. Due to the holidays, subcontractors are requesting more time to review the bid documents and submit RFI questions (many companies were closed between Christmas and New Year’s Day). Some subcontractors are also requesting a second site visit.

Proposal due date has been extended to 28 January 2021.

Another site visit cannot be supported.

56 31 23 00.00

1.2 Please confirm that

all soil on site is regulated nonhazardous soil and that surplus soil is to be removed as such.

Yes, consider all soil on site to be nonhazardous; however all soil to be removed must be tested prior to being hauled off-site in accordance with section 3.11.1 in the specification.

57 31 23 00.00

3.11.1 B-601 Paragraph 3.11.1

seems to indicate that there are soil test sample results from soil boring locations included with the project documents.

Please provide test reports if they are available, none were located in the specs.

On dwg B-601, boring CT-1, note 2 indicates that there was a “fuel smell”.

How is this soil expected to be handled?

Test results are provided with PPI responses (see attached PDF files titled 'Drum Disposal Characterization Composite Sample Results' and 'Soil Boring Environmental Sample Results'). Despite the "fuel smell", all soil is to be considered as non-hazardous and handled as such; however all soil to be removed must be tested prior to being hauled off-site in accordance with section 3.11.1 in the specification.

ADDENDUM

LANGUAGE: Add PDF files titled 'Drum Disposal Characterization Composite Sample Results' and 'Soil Boring Environmental Sample Results' to the end of specification section 31 23

00.00 20.

58 31 23 00.00

1.2.1 This section indicates

that regulated hazardous soil and oily water will be paid for at the contract unit price.

Should any base bid quantity for each be included with bids?

If so, please provide a quantity for each.

Please provide a revised bid form if this inclusion and unit price information is desired.

No base bid quantity for hazardous soil nor oily water needs to be assumed.

However, please provide a unit price for hazardous soil (per ton) and oily water (per gallon) to account for costs in the event that either is encountered during construction.

59 31 23 00.00

1.6.g; 1.7 These paragraphs seem to indicate that any excavated soil taken from this site is not suitable for backfill or bedding material. Please confirm that all soil material needed must be imported.

Correct, all soil taken from the site cannot be used for backfill or bedding material;

all soil material needed must be imported.

60 31 23 00.00

1.6.i; 1.8.1 Paragraph 1.6.i indicates that excavation support is required at every excavation but does every SOE require drawings, calculations and certification by a registered professional engineer? The only excavations of any depth appear to be for the water and sanitary tie-ins and it is likely that those excavations can be supported by trench-boxes or post-shores.

Yes, every SOE requires means and methods to be provided, including details, certifications, and calculations by a registered professional engineer.

61 31 23 00.00

3.3.1 G-005 note 5 Where are soil stock

piles permitted to be located? Drawing G- 005 does not indicate and depending on location (note 5) hauling and handling costs will vary.

Soil stockpile location is shown on C-104 Erosion and Sediment Control Plan.

62 32 31 13.53 3.7 Does reinstallation of the existing high security fence require any third-party inspections, engineering or recertifications?

Contractor must use a fence contractor with Ameristar Fence installation training to remove the fence sections shown on Drawing CD101 and to re-install as shown on C-101. Follow Ameristar recommended installation procedures. If any fence components are damaged during the removal or re-installation, provide replacement Ameristar Fence components. Condition and configuration of reinstalled fence sections must maintain original appearance, pale spacing/alignment, and warranty and must meet with the approval of the COTR.

After reinstallation is complete, provide a letter from Ameristar that indicates that the re-installed condition is compliant with terms of the remaining warranty.

Contractor is also responsible to ensure that electrical resistivity is re-established for the replaced fence sections so that grounding complies with the requirements in Specification section 32 31 13.53.

ADDENDUM

LANGUAGE:

Add paragraph 1.3.3

EXISTING FENCE

REMOVAL AND

REPLACEMENT

REQUIREMENTS,

"Provide installation training by Ameristar Perimeter Security to contractor performing removal and replacement of existing fence sections.

Comply with Ameristar Perimeter Security's recommended installation procedures. Replace damaged fence components with approved Ameristar Perimeter Security components. Condition and configuration of reinstalled fence sections must maintain original appearance, pale spacing and alignment, and warranty. Receive approval of the COTR for reinstalled fence sections.

Add 'Warranty Letter' submittal to paragraph 1.2, SD-07. Add paragraph 3.9

WARRANTY LETTER,

"After security fence reinstallation is complete, provide a letter from Ameristar Perimeter Security indicating that re-installed condition is compliant with the terms of the remaining warranty".

Add paragraph 3.6.e to specification section 32 31 13.53, "Re-establish electrical resistivity for the replaced/reinstalled fence sections such that grounding complies with the above requirements.

63 23 65 00 2.5.1 Can a basis of design and/or designer options considered (various acceptables) be provided for the Factory Assembled Cooling Towers.

Basis of design considered for the Factory Assembled Cooling Towers is BAC, Series 3000, model S3E- 1222-12S.

64 E-701 The 60/3 30ma GFI breaker shown for panel LV1 is not available in a panel configuration via any of the manufacturers, please advise how to proceed with this breaker?

Provide shunt trip breaker connected to a ground fault sensor with relay. The ground fault sensor for equipment protection must be rated at 20mA. Include setpoint capablity to eliminate nuisance tripping.

ADDENDUM

LANGUAGE: Add Sheet Keynote 3 to the 60/3 30ma GFI breaker at Panel LV1, "Provide shunt trip breaker connected to a ground fault sensor with relay. The ground fault sensor for equipment protection must be rated at 20mA. Include setpoint capability to eliminate nuisance tripping."

65 23 65 00 Please advise the closest connection point for the existing Building Automation System for tie-in purposes. The drawings do not indicate.

The initial installation requires no connection to the existing DDC system.

66 01 78 00 1.6.1 Details for the lightning protection system cannot be located. If lightning protection such as aerials on the CT, etc.

is required please provide.

Review of UFC and NFPA 780 lighting protection is not required.

67 C-104 The temporary fence is shown to be installed directly over an abandoned steam trench (running north and south). Is the designers’ intent that the temp fence be installed short of the top of the trench or potentially penetrate the trench? If not, please advise as to how to handle this utility which appears to be in conflict with new work.

The existing steam trench is at a lower elevation than the concrete footings to be installed for the temporary fencing.

68 During the site visit it was noted that there is Government owned equipment, materials, etc. being stored on the floor in areas where contractors will need clear space to safely and adequately access locations of new work. Will these areas be maintained clear such that contractors’ work will be allowed to proceed unencumbered?

Government-owned materials/equipment will be relocated. Please notify the Contracting Officer a minimum of 15 days in advance.

69 22 00 00 2.5.1 Specification Section 22-00-00 Section

2.5.1 specifies a heated enclosure for the backflow preventer assembly.

The last paragraph reads as follows:

“The enclosure must be factory assembled and delivered to the site ready to install with no drilling, screwing or riveting of enclosure required on site. The enclosure and the backflow preventer must be covered by a single warranty policy.”

Please provide product information for a backflow preventor and enclosure that can be purchased as a single unit, in order to obtain a single warranty. If that is not available, can we use a product similar to Hubble Power Systems, Inc. “Hot Box, Aluminum” which will carry a factory warranty separate from the

The Basis of Design BFP is Watts. Watts also offers a heated enclosure and single warranty policy. It is not intended that the two pieces of equipment be purchased as a single unit only that they are warranted together.

backflow preventor.

In either case, all components will be covered under our subcontractor warranty for one year.

70 Will the contractor be required to follow the requirements of the Defense Priorities and Allocations System (DPAS) (15 CFR 700)? If so, does this project have a DO or DX rating for procurement of materials?

Yes. DO-2.

71 G-003 Would it be acceptable for the contractors’ field offices to be located in the vicinity of building 633? If not, where is the designated location for office trailers?

There is a potential location south of B633.

72 01 45 00.00 20 01 30 00 (1.3.2) 01 35 26 (1.7.1.2)

1.4 In various locations

in the division 1 specifications it seems to indicate that the contractor’s superintendent, quality control manager and superintendent can be the same person.

Typically the QC manager is a full time dedicated position at this site and the superintendent and the SSHO can be the same person. Please confirm the requirements for these staff positions.

QC manager must be a full-time independent position who does not also act as the SSHO nor superintendent.

SSHO and superintendent may be the same person.

ADDENDUM

LANGUAGE:

Add paragraph 1.7.1.1.1

ADDITIONAL SITE

SAFETY AND HEALTH

OFFICER (SSHO)

REQUIREMENTS AND

DUTIES to section 01 35 26, "The SSHO may not serve as the Quality Control Manager. The SSHO may also serve as the Superintendent.

Delete paragraph 1.7.1.2 of section 01 35 26 and replace with the following, "The Contractor Quality Control Manager may not also serve as the Superintendent nor the SSHO."

Delete the second sentence in paragraph 1.5.1.1 of section 01 45 00.00 20 and replace with the following, "The only duties and responsibilities of the QC Manager are to manage and implement the QC program on this Contract."

SECTION 01 00 00 - GENERAL REQUIREMENTS

The following have been modified:

WAGE DETERMINATION

"General Decision Number: PA20210004 01/15/2021

Superseded General Decision Number: PA20200004

State: Pennsylvania

Construction Types: Heavy and Highway

Counties: Bucks, Chester, Delaware, Montgomery and Philadelphia Counties in Pennsylvania.

HEAVY AND HIGHWAY CONSTRUCTION PROJECTS

Note: Under Executive Order (EO) 13658, an hourly minimum wage of $10.95 for calendar year 2021 applies to all contracts subject to the Davis-Bacon Act for which the contract is awarded (and any solicitation was issued) on or after January 1, 2015. If this contract is covered by the EO, the contractor must pay all workers in any classification listed on this wage determination at least $10.95 per hour (or the applicable wage rate listed on this wage determination, if it is higher) for all hours spent performing on the contract in calendar year 2021. If this contract is covered by the EO and a classification considered necessary for performance of work on the contract does not appear on this wage determination, the contractor must pay workers in that classification at least the wage rate determined through the conformance process set forth in 29 CFR 5.5(a)(1)(ii) (or the EO minimum wage rate,if it is higher than the conformed wage rate). The EO minimum wage rate will be adjusted annually. Please note that this EO applies to the above-mentioned types of contracts entered into by the federal government that are subject to the Davis-Bacon Act itself, but it does not apply to contracts subject only to the Davis-Bacon Related Acts, including those set forth at 29 CFR 5.1(a)(2)-(60). Additional information on contractor requirements and worker protections under the EO is available at www.dol.gov/whd/govcontracts.

Modification Number Publication Date 0 01/01/2021 1 01/15/2021

BOIL0013-003 03/01/2018

Rates Fringes

BOILERMAKER......................$ 45.89 33.39

CARP0219-005 06/08/2020

Rates Fringes

MILLWRIGHT.......................$ 46.80 33.19

CARP0255-006 05/01/2020

Rates Fringes

CARPENTER........................$ 49.46 28.34

FOOTNOTE:

A. PAID HOLIDAY: LABOR DAY

CARP0441-004 05/01/2020

Rates Fringes

PILEDRIVERMAN....................$ 43.70 37.22

ELEC0098-001 04/29/2018

BUCKS COUNTY: Starting at the Delaware River and following the west limits of the Borough of Bristol, along the continuation of U.S. Highway 13 and under the Pennsylvania Railroad Bridge to Route 09113, north 09113 to Route 152, north along Route 152 to the Humeville Road, east on Humeville Road to Route 333, north on Route 344 to the junction of Spurs 281 and 252, continue north on Spur 252 to Route 09028, west on 09028 to

Route 152, north on 152 to TR 232, north on TR 532 to Tr 113, north on TR 113 to TR 232 at Anchor Inn, northeast on TR 232 and continue northeast along Rounte 659 to Route 09060, west on 09060 to Route 402, north on 402 to the Borough line at the southwest corner of the Borough of New Hope. The Bouough of New Hpoe is excluded.Starting at the Delaware at the Delaware River and proceeding southwest along the Plumstead-Solebury and the Plumstead-Buckingham Township lines to Route 09064, northwest on 09064 to U.S. Highway 611 south on 611 to the spur of Route 270, northwest along the spur to Route 397, Southwest on 397 to Route 350, southeast on 350 to Route 395, southwest on 395 to Route 09060, southeast on 09069 to Route 09041 southwest on 09041 to the Montgomery County line.

DELAWARE COUNTY: That portion east of a line following State Highway 320 from Montgomery County to Maple, then along the Springfield Road to Saxer Ave, along Saxer Avenue to Powell Road, along Powell Road to State Highway 420 and continuing in a straight line to the Delaware River. MONTGOMERY COUNTY:

That portion southeast of a line following Lower State Road from Bucks County southwest to the Bethlehem Pike (U.S Highway 309), south on the Bethlehem Pike to the Penllyn Pike, southwest on the Penllyn and Blue Bell Pikes to the Wissahickon Creek, southeast on the Wissahickon Creek to the Butler Pike to North Lane near Conshohocken Borough, southwest on North Lane to Schuylkill River and continuing southeast in a line to the Spring Mill Road and southwest on the Spring Mill Road to Delaware County. PHILADELPHIA COUNTY

Rates Fringes

ELECTRICIAN......................$ 58.33 59%+1.75

ELEC0102-003 06/03/2019

BUCKS COUNTY (Plumstead, Bedminister, Tinicum, Nockamixon, Bridgeton and Durham Townships in their entirey, and that portion of Haycock and Springfield Townships east of a line following State Highway 412, from Northampton County south to Route 09071 to State Highway 212, along Highway 212 to Route 09068, and along 09068 to State Highway 313. Also included is that portion of Dublin Borough east of State Highway 313

ELECTRICIAN......................$ 57.31 57.50%

ELEC0126-002 06/01/2020

CHESTER, DELAWARE, MONTGOMERY, PHILADELPHIA, AND REMAINDER OF

BUCKS COUNTY

Line Construction:

Cable Splicer...............$ 55.96 31.25%+11.75 Groundman...................$ 33.58 31.25%+11.75 Lineman.....................$ 55.96 31.25%+11.75 Truck Driver................$ 36.38 31.25%+11.75 Winch Truck Operator........$ 39.17 31.25%+11.75

ELEC0269-001 07/06/2020

BUCKS COUNTY (Area East of a line starting at the Delaware River and following the west limits of the Borough of Bristol, along the continuation of U.S. Highway 13 and under the Pennsylvania Railroad Bridge to Route 09113, north along 09113 to route 152, north along route 152 to the Hulmeville Rd., east on the Hulmeville to Route 344, north on route 344 to the junction of Spurs 281 and 252 continue north on spur 252 and route 09028, west on 09028 to Route 152, north on 152 to TR 532, north on TR 532 to TR 113, north on TR 113 to TR 232 as Anchor Inn, northeast on TR 232 and continue northeast along 659 to Route 09060, West on 09060 to Route 402, north on 402 to the Borough Line at the southwest corner of the Borough of New Hope; including the Boroughs of New Hope and Bristol)

ELECTRICIAN......................$ 51.71 64.70%

ELEC0269-002 07/06/2020

BUCKS COUNTY - That portion east of a line starting at the Delaware River and following the west limits of the Borough of Bristol, along the continuation of U.S. Highway 13 and under the Pennsylvania Railroad Bridge to Route 09113, north along 09113 to route 152, north along route 152 to the Hulmeville Rd., east on the Hulmeville to Route 344, north on route 344 to the junction of Spurs 281 and 252 continue north on spur 252 and route 09028, west on 09028 to Route 152, north on 152 to TR 532, north on TR 532 to TR 113, north on TR 113 to TR 232 as Anchor Inn, northeast on TR 232 and continue northeast along 659 to Route 09060, West on 09060 to Route 402, north on 402 to the Borough Line at the southwest corner of the Borough of New Hope. The Boroughs of New Hope and Bristol are included.

Line Construction:

Cable Splicer...............$ 54.30 64.15% Groundman, Truck Driver.....$ 41.37 64.15% Linemen and Heavy Equipment Operator..........$ 51.71 64.15%

ELEC0313-003 06/01/2011

DELAWARE COUNTY :(That portion south of U.S. Highway No. 1 and west of U.S. Highway No. 202) Chester County (That portion South and east of U. S. Highway 1)

ELECTRICIAN......................$ 35.00 23.70

ELEC0375-001 06/01/2020

BUCKS COUNTY (East Rock Hill, West Rock Hill, Milford and Richland Towships in their entirety and that portion of Haycock and Springfield Townships west of a line following State Highway 212 from Northampton County South to Route 09071 along 09071 to state Highway 212, along Highway 212 to Route 09068 and along 09068 to State Highway 313) MONTGOMERY COUNTY(Upper Hanover Twp.in its entirety)

ELECTRICIAN......................$ 41.94 21.80

ELEC0380-001 09/29/2014

BUCKS COUNTY (Hilltown and New Britain Townships in their entirety; that portion of Telford Borough Northeast of County Line Road (Main Street) and bounded by West Rock Hill and Hilltown Township that portion of Dublin Borough West of State Highway 313, and that portion of Doylestown and Warrington Townships and Doylestown Borough Northwest of a line following U.S. Highway 611 South from Route 09064 to the spur of Route 270, and proceeding Northwest along the spur to Route 397, Southwest on 397 to Route 350, Southeast on 350 to Route 395, Southwest on 395 to Route 09069, Southeast on 09069 to Route 09041, Southwest on 09041 to the Montgomery County Line) DELAWARE COUNTY (The portion of Radnor Township North of U.S Highway 30 and West of State Highway 320) MONTGOMERY COUNTY (The portion Northwest of a line following Lower State Road from Bucks County Southwest to Bethlehem Pike (U.S. Highway 309), South on Bethlehem Pike to Penllyn Pike, Southwest on the Penllyn and Blue Bell Pikes to Wissahickon Creek to the Butler Pike, Southwest Wissahickon Creek to Butler Pike, Southwest on Butler Pike, to North Lane near Conshohocken Borough, Southeast on North Lane to the Schuylkill River and continuing Southeast in a line to Spring Mill Road, Southwest on Spring Mill Road to Delaware County; but excluding Upper Hanover, Douglas, Upper Pottsgrove, West Pottsgrove Townships and also excluding that portion of the Borough of Pottstown North and West of a line drawn Northeast on Kein Street from the Schuylkill River to Reading Railroad Northwest on the railroad to Madison Street, to High Street, East on High Street to Green Street, North on Green Street and Northeast on Mintzer Street to Lower Pottsgrove Township Line, along this township line and the borough line Northwest to Adams Street and Beehive Road, Northeast on Beehive Road to the Township

Line at Mervine Street)

CHESTER COUNTY (East Coventry. East Vincent, West Vincent, East Pikeland, West Pikeland, Uwchlan, Upper Uwchlan, East Brandywine, Schuylkill and Charleston Townships in their entirety, and that portion of Clan, East Clan, East Whiteland & West Whiteland, Tredyffrin, Willistown, Easttown Townships and Borough of Downingtown north of U. S.Highway 30 )

ELECTRICIAN......................$ 41.05 29.99

ELEC0654-001 06/03/2019

DELAWARE COUNTY (The portion south of U.S. Highway 30 and north of that part U.S. Highway 1 between U.S. Highway 202 and the Chester County Line, and east of that part of U.S. Highway 202 between U.S. Highway 1 and the Delaware Line, and west of a line extending from Montgomery County along State Route 320 to Maple, then along the Springfield Road to Saxer Avenue, along Saxer Avenue to Powell Road; along Powell Road to State Highway 420; along 420 and continuing in a straight line to the Delaware River in the State of Pennsylvania) CHESTER COUNTY (That portion south of U. S. Highway 30 and north of that part of U.S. Highway 1)

ELECTRICIAN......................$ 42.87 25.80%+21.24

ELEC0743-001 09/01/2020

CHESTER (Coatesville, Honey Brook, South Coventy, Valley, Wallace, Warwich, West Brandywine, West Clan, and West Nantmeal Twps); AND MONTGOMERY (Douglas, Pottstown, Upper Pottsgrove, and West Pottsgrove, Twps) COUNTIES

ELECTRICIAN......................$ 37.77 23.73

New Year's Day, Good Friday, Memorial Day, Fourth of July, Labor Day, Veterans' Day, Thanksgiving Day, and Christmas Day.

ELEC0743-007 09/01/2020

CHESTER COUNTY (The portion of Sadsbury and West Sadsbury Township north of U.S. Highway 30)

ELECTRICIAN............