W912WJ-17-B-0012_Amendment_0002_.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

The purpose of this amendment is to respond to the requests for information(RFIs) and to make changes to the specifications and draw ing (F-813-60-02_EP601_REV_1). All RFIs should be submitted by close of business on 8 September 2017. All other aspects of this solicitation remain unchanged.

1. CONTRACT ID CODE PAGE OF PAGES

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

16C. DATE SIGNED

BY 08-Sep-2017

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 W912WJ-17-B-0012

X 9B. DATED (SEE ITEM 11)

11-Aug-2017

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 1 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

08-Sep-2017

CODE

U S ARMY ENGR DISTRICT, NEW ENGLAND

696 VIRGINIA RD

CONCORD MA 01742-2751

W912WJ 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

1 10

W912WJ-17-B-0012

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

SECTION 00100 - BIDDING SCHEDULE/INSTRUCTIONS TO BIDDERS

The following have been added by full text:

SPEC CHANGES

SECTION 00 00 01

AMENDMENT 0002 OF SOLICITATION

11/11

CHANGE TO SPECIFICATIONS

1.1 Narrative Change

1. Section 01 11 00 SUMMARY OF WORK, Subpart 1.1.2.1.b.2 "OPTIONAL BID WORK" is modified as follows; after, "Excavate, remove, load, transport, and legally dispose of contaminated soil offsite in accordance with all federal, state, and local laws and regulations," add "Includes replacement of removed contaminated soil, as needed, with suitable, uncontaminated material."

END OF AMENDMENT 0002

The following have been modified:

Request for Information

Amendment 0001

1. Can a detour be made through the grass area when doing road work?

Response: Detours are not to be planned in order to maintain traffic flow. Contractor shall follow guidance in Section 01 11 00, paragraph 1.6, Coordination with CRREL Traffic.

2. Will the contractor be required to address a water drainage/infiltration through the conduit into the building?

Response: Due to the elevation differences between the electrical manholes and where electrical ducts or conduits enter buildings, there is potential for water to infiltrate the buildings through them. As such, based upon the conditions found, the contractor shall furnish and install an in-ground solution that will permit drainage of any water in the ducts or conduits before it reaches the buildings. Contractor shall provide shop drawings to the Government for approval prior to beginning work on this feature. Ducts or conduits entering an exterior wall shall slope away from the wall. Contractor shall provide waterproof seals around all ducts or conduits penetrating an exterior wall.

Contractor shall also seal all ducts or conduits themselves at the inside face of the exterior wall.

3. What are the depths of the storm water drains and feeders?

Response:

Specification 33 71 02 UNDERGROUND ELECTRICAL DISTRIBUTION Paragraph

3.1.1 UTILITY LOCATE, and Specification 01 35 26 GOVERNMENT SAFETY REQUIREMENTS Paragraph 3.7.1 UTILITY LOCATIONS, and Paragraph 3.7.2 UTILITY LOCATION VERIFICATION, addresses this question. The contractor is responsible for determining the exact locations of utilities within the general area of excavation.

4. What utilities are in the additional man hole marked electrical?

Response: The exact feeders and routing of the distribution within the manhole in vicinity of the proposed main lab addition penetration is unknown at this time. Please also reference Specification 33 71 02 UNDERGROUND ELECTRICAL DISTRIBUTION Paragraph 3.1.1 UTILITY LOCATE, and Specification 01 35 26 GOVERNMENT SAFETY REQUIREMENTS Paragraph 3.7.1 UTILITY LOCATIONS, and Paragraph 3.7.2 UTILITY LOCATION VERIFICATION

5. Can an additional man hole be created for utilities?

Response: See Changes to specification 33 71 02 UNDERGROUND ELECTRICAL DISTRIBUTION in Amendment 001. Contractor shall bid based upon plans and specifications in the most updated contract documents. However, if a contractor wants to install an extra manhole as part of its means and methods, at no additional cost to the Government, this issue can be addressed with a RFI during construction.

6. During basement demolition, does all demolished equipment needs to be able to fit through the existing door way.

Response: Yes, all materials need to fit through the existing doorway and out of the facility to be disposed of.

7. What is the age of existing equipment to be demolished and is there asbestos present in that equipment?

Response: The equipment was installed in the 1960s. Though not confirmed, contractors should expect the equipment to include asbestos or asbestos-containing material.

8. Will basement wall drawings be provided to the contractor?

Response: Drawings will not be provided. Basement exterior walls in the main lab addition in vicinity of the conduit entrance as depicted on Sheets ES101 and EP102 are constructed of approximately 1’ thick reinforced concrete.

9. What is the structural integrity of basement walls?

Response: See wall specifications provided per the response to RFI 8.

10. What will be the path of equipment considering the low points and narrow pathways?

Response: It is the contractor’s responsibility to determine the best way to install and remove equipment inside the facility. The contractor shall coordinate with the COR to determine the safest route to move equipment through the building.

11. Is there PCB and/or TCE contamination?

Response: Please see Section 01 35 26, paragraphs 1.6, Trichloroethylene TCE), and 1.7, Polychlorinated Biphenyls (PCBs). Note, regarding PCB testing of the transformer oil, all results for the oil-filled transformers were less than 10 ppm.

12. Do the transformer room columns need to stay in place or can they be removed?

Response: All columns in the transformer rooms shall stay in place undisturbed.

13. What kind of oil is in the oil-filled transformers?

Response: R-Temp fluid is the oil used inside of existing oil-filled transformers.

14. Will the power be shut down before working on the electrical systems?

Response: Please see Section 01 35 26, paragraphs 1.16, Hot Work, 3.2, Pre-Outage Coordination Meeting, and 3.3, Control of Hazardous Energy (Lockout/Tagout).

15. What toxic substances are expected to be present during this project?

Response: The term “toxic substances” is very broad. Many commonly used construction products can be toxic depending on exposure (e.g. Portland cement). Please see Section 01 35 26, Government Safety Requirements. Also, please see responses to RFI #7 and RFI #11.

16. Is there a requirement for National Cable Splicing Certification?

Response: Cable splicers must meet the requirements of 26 05 13.00 40. National Cable Splicing Certification is not required.

17. What will be the equipment path for the transformer room?

Response: See response to RFI #10.

18. What are the existing ceiling hanger ratings?

Response: The ratings of existing ceiling hangers inside the facility are unknown. Use or reuse of existing ceiling hangers is not permitted unless the contractor can definitively show compliance with the specifications and plans.

19. Will this project be allocated more time due to time needed to procure equipment?

Response: Please see clause 52.211-10 and Amendment 001.

20. What is behind the drywall near the transformer room and what is the drywall rating?

Response: The fire ratings of the actual wall assemblies are unknown. As such, seal all wall penetrations with an intumescent firestop material with a minimum two-hour fire rating formulated to bond to concrete, metals, wood, plastic and cable jacketing.

21. Can Radar be used to locate conduit in the ceiling prior to the placing/setting of ceiling anchors?

Response: This method is acceptable if the contractor chooses to do this.

22. Is there a fire sprinkler system in place?

Response: There is no fire sprinkler system in the basement level.

23. What will be the location of a construction staging area and refuse location?

Response: Please see Section 01 50 00 TEMPORARY CONSTRUCTION FACILITIES AND CONTROLS, Paragraph 1.4 CONSTRUCTION SITE PLAN regarding the construction staging area and SECTION 01 74 19 CONSTRUCTION AND DEMOLITION WASTE MANAGEMENT for a discussion on the disposal of refuse for the project. The construction staging area and refuse location shall be coordinated at the pre-construction meeting.

24. Drawing EP601 shows two breaker in parallel for each LV feeder, is this correct?

Response: The drawing is correct. The intent of the design is provide a dual breaker switchgear to allow maintenance on the breakers without interrupting the load.

25. Drawing EP601 and EP606 show feeder LV-1 as 3 sets of 600MCM + 3/0 gnd (approximate ampacity of 1300A) connected to 1600 AT breaker. Is this correct?

Response: The feeder is replacing the 750 kVA transformer that will be demolished. The full load current of a 750 kVA transformer is 902A. The new feeder is a 1200A feeder increasing the capacity of the equipment while remaining within the equipment's rating.

The drawing is correct.

26. This project has a Davis-Bacon wage determination (General Decision Number:

NH170022 01/06/2017 NH22) indicated for Construction Type: Heavy. The wage determination includes rates for - Carpenters, Laborers, Operators, and Truck Drivers, however no rate is provided for electricians. This project consists of an extensive amount of electrical work. The scope of work includes a medium voltage component (15KV), which per section 00800 DRC the contractor must demonstrate past experience. In addition, specification section 26 05 13 Medium Voltage Cables Part 1.5 Quality Assurance indicates that cable splicers performing splicing are required to have 5 years’ experience in cable splicing and terminations. Specification section 33 71 02 Underground Electrical Distribution Part 1.3 Submittals SD-07 requires Certificates - Cable Installer Qualifications and Part 1.4.2 has minimum Cable Installer Qualifications.

Based upon the requirements for the work to be performed by highly qualified and certified utility/lineman electricians, could you please provide the Davis Bacon rate corresponding to this trade?

Response: Previous Wage Determination has been replaced by General Decision Number: NH170009 07/28/2017 NH9

Amendment 0002

27. Contract states complete all work for Base Bid Items #001, #002, and #003 within 180 days from the Notice to Proceed. Lead time for new electrical equipment is approximately 22 to 28 weeks from Government accepted submittals. There is no way this contract can be completed within the contract stated time frame of 180 days from Notice to Proceed.

Response: See Amendment 0001.

28. During the site visit on August 23 it was noted that the existing electrical equipment scheduled to be demo'd and removed from site could possibly contain asbestos. There is no specification covering abatement of asbestos. Who will be responsible for the removal of asbestos and associated costs?

Response: See Amendment 0001, RFI #7. The contractor shall be responsible for the removal and disposal of any found material, compliant with federal, state, and local guidelines.

29. During the site visit on August 23 it was noted that the existing trees will require trimming in order to set the equipment within the new transformer yard. There are no specifications in the contract telling the contractor what the Government requirements are for this activity.

Response: Trees will not necessarily need to be trimmed or removed as part of this contract. The contractor shall coordinate with the COR if he or she deems that any trees need to be trimmed or removed to perform the work. Please see specification Section 01 57 20, paragraph 1.8, Protection Features, and FAR 52.236-9, Protection of Existing Vegetation, Structures, Equipment, Utilities, and Improvements.

30. Section 01 11 00 paragraph 1.7d "The project superintendent may not serve as the CQC System Manager, but may serve as the Site Safety Health Office." The EM385 states the Superintendent cannot serve as the Site Safety Health Officer. What is the Government going to accept since Specifications and the EM385 are both part of the contract?

Response: There is no reference in the current EM 385-1-1, Safety and Health Requirements (30 Nov 14), that states, “the Superintendent cannot serve as the Site Safety Health Officer.” In Appendix Q, Definitions, a Site Safety and Health Officer (SSHO) is defined as, “the superintendent or other qualified or competent person who is responsible for on-site safety and health.” The Superintendent can serve as the SSHO.

31. Section 01 11 00 paragraph 1.8 states "The Contractor's Superintendent, Quality Control Representative, and Site Safety and Health Officer (SSHO) shall attend this conference.

Previous specification paragraph leads the contractor to believe one person can wear two hats (either the CQC and SSHO as one hat or Superintendent and CQC as one hat). What is the Government's intention for this contract?

Response: The Contractor’s Superintendent can also serve as the SSHO per the response to RFI 30. The Superintendent cannot also be the CQC System Manager. All of the Contractor’s personnel designated as the Superintendent, CQC System Manager, and SSHO shall attend the Preconstruction Conference as described in paragraph 1.8, whether that is two or three people depending on assigned duties.

32. The Bidding Schedule has a breakout Item No: 0003 Perform Air Monitoring during Construction and Test Soils for TCE Contamination. Specification Section 01 11 00

1.1.2.1 b. (7) reads “Perform air monitoring during construction and test soils for TCE contamination. Refer to subparagraph titled “Trichloroethylene (TCE)” under Section 01 35 26 Governmental Safety Requirements.” Specification Section 01 35 26 1.6 Trichloroethylene c. and d. – indicate that due to the existing contamination on site a photo-ionization detector suitable for detecting VOCs shall be present during the asphalt removal and soil excavation. The PID shall be monitored by the contractor’s Site Safety and Health Officer (SSHO) and this individual shall a minimum of 1 year experience.

The SSHO also can NOT serve as the project superintendent. Is the intent of these specifications that the air monitoring be performed only during the asphalt removal and excavation process and is NOT required to continue during the remainder of the site work

– i.e.: the air monitoring is not required during the installation of the duct banks and backfill/restoration process?

Response: Air monitoring is required during asphalt removal and excavation work only, not during the installation of duct banks or backfill/restoration. The SSHO may also be the Superintendent.

33. Additionally, Specification Section 01 11 00 1.1.2.1 b. noted that there are to be soil tests done. Is there a specification for this testing?

Response: Soil testing is only required if the contractor has to dispose of soil off site.

Testing shall be conducted in accordance with the receiving facility/location requirements. No soil testing is required prior to or during construction activities on the CRREL campus, separate from the air monitoring requirement as discussed in the response to RFI #32.

34. The Bidding Schedule has an Optional Bid Item 0004 Excavate and Dispose of Contaminated Soil (0004AA and 0004AB). Please clarify the intent of this Bid Item, as it is indicated that it will be utilized as a basis for award. Is the (60) tons of contaminated soils in addition to the excavated material for the duct banks/manholes/site work?

Response: Option Bid Items 0004, “Excavate and Dispose of Contaminated Soil,” 0004AA, “First 50 Tons,” and 0004AB, “Over 50 Tons,” refer to disposal of contaminated excavated soil. If there is no contaminated excavated soil, these options will not be exercised. These bid items do not apply to clean excess soil needing to be disposed.

35. Is this unit price to include shoring, if the contamination has infiltrated the soil to depths that exceed excavation cut back requirements?

Response: In the execution of this project, any excavated soil that is also or becomes contaminated shall be removed and properly disposed and replaced, as needed, with suitable, uncontaminated material. The means and methods employed to accomplish this work shall be decided by the contractor. The contractor shall excavate only the amount of soil required to execute the contract work.

36. Does the unit price include the costs associated with replacement backfill material?

Response: Yes, the unit prices should include replacement of contaminated soils, as needed, with suitable, uncontaminated material.

Section 01 11 00, paragraph 1.1.2.1.b.2 (1) is modified as follows: After, “Excavate, remove, load, transport, and legally dispose of contaminated soil offsite in accordance with all federal, state, and local laws and regulations,” add “Includes replacement of removed contaminated soil, as needed, with suitable, uncontaminated material.”

37. Is there a location on site in which excess excavated soils can be dumped and leveled off?

If not, does the excess soils have to be tested, documented accordingly and be disposed of at a licensed landfill?

Response: All uncontaminated, excess, excavated soil shall be removed from the site per federal, state, and local guidelines at the contractor’s expense.

38. On Drawing EP601 Electrical One Diagram, there is a symbol shown within EMH-LV- NEW which is not identified on the symbol legend. Please clarify the intent.

Response: EMH-LV-NEW means Electrical Man Hole – Low Voltage – New. The location is shown on sheet ES101 Keyed Note 9.

39. On Drawing EP601 Electrical One Line Diagram, the New 3000A, 480/277V, 3ph, 4w exterior switchgear lineup is shown with (2) active 1600AF/1000AT and (2) active 2000AF/1600AT circuit breakers. Drawing EP602 One Line Diagram Part II detail B1 SS-480V Switchgear Elevation and One Line shows (4) active 1600AF/1200AT circuit breakers. Please clarify the quantity/rating of the circuit breakers and whether this affects the feeder sizes.

Response: The error is on sheet EP601; the breaker frame sizes and trip settings are not correct. EP602, EP603, and EP606 are all correct and show the correct breakers frame sizes and trip settings. The feeder size on the schedule, sheet EP606, is for a 1200A feeder. Sheet EP601 is revised accordingly.

40. Also on Drawing EP601 Electrical One Line Diagram, the New 4000A, 208/120V, 3ph, 4w exterior switchgear lineup is shown with (2) spare circuit breakers 1200A. Drawing EP602 One Line Diagram Part II detail B5 SS-208V Switchgear Elevation and One Line shows (4) 1600AF/1600AT circuit breakers. Please clarify the quantity and rating of the spare circuit breakers.

Response: The error is on sheet EP601; the number of spare breakers is not correct. The intent is for four spare breakers. Sheet EP601 is revised accordingly.

(End of Summary of Changes)