33330225RF0010020 Amendment 0004.pdf

(x)

33330225RF0010020

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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 electronic communication which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGEMENT 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 letter or electronic communication, provided each letter or electronic communication makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

x

OCON

Washington DC 20013-7012 PO Box 37012

MRC 1200

OCON

OCON

Washington DC 20013-7012 PO Box 37012

MRC 1200

SMITHSONIAN INSTITUTION

158380805/22/20250004

13. THIS ITEM ONLY APPLIES TO MODIFICATION OF CONTRACTS/ORDERS. IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

12. ACCOUNTING AND APPROPRIATION DATA (If required) is not extended.is extended, Items 8 and 15, and returning

Offers 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

The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offers

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

FACILITY CODE CODE

10B. DATED (SEE ITEM 13)

10A. MODIFICATION OF CONTRACT/ORDER NO.

9B. DATED (SEE ITEM 11)

9A. AMENDMENT OF SOLICITATION NO.

CODE

8. NAME AND ADDRESS OF CONTRACTOR (No., street, county, State and ZIP Code)

7. ADMINISTERED BY (If other than Item 6)CODE 6. ISSUED BY

PAGE OF PAGES

4. REQUISITION/PURCHASE REQ. NO.3. EFFECTIVE DATE2. AMENDMENT/MODIFICATION NO. 5. PROJECT NO. (If applicable)

1. CONTRACT ID CODE

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

04/23/2025

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

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority) appropriation data, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(b).

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

ORDER NO. IN ITEM 10A.

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

A. The Solicitation Number cited above, to replace the FLWO Dormitory at the Fred Lawrence

Whipple Observatory of the Smithsonian Institution's Smithsonian Astrophysical, is hereby amended as follows:

A.1. Attached hereto and made part of this Amendment Four are the SI Responses to RFI's for

Questions Number 2-17.

A.3. Offerors shall acknowledge receipt of all amendments to this solicitation signed and dated and submit with proposal.

B. Questions or Clarifications due date is May 27, 2025, and sent to Virginia Chan at

Continued ...

16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)15A. NAME AND TITLE OF SIGNER (Type or print)

15C. DATE SIGNED 16B. UNITED STATES OF AMERICA 15B. CONTRACTOR/OFFEROR 16C. DATE SIGNED

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

Christine Grant

STANDARD FORM 30 (REV. 11/2016)

Prescribed by GSA FAR (48 CFR) 53.243

Previous edition unusable

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

ITEM NO. SUPPLIES/SERVICES QUANTITY UNIT UNIT PRICE AMOUNT

NAME OF OFFEROR OR CONTRACTOR

2 4

CONTINUATION SHEET

REFERENCE NO. OF DOCUMENT BEING CONTINUED PAGE OF

(A) (B) (C) (D) (E) (F)

33330225RF0010020/0004

ChanVC@si.edu.

C. THE BID DUE DATE IS MONDAY, JUNE 23, 2025, AT

5:00PM EASTERN STANDARD TIME (EST).

Except as provided herein, all other provisions, terms and conditions of the Solicitation remain unchanged.

END OF AMENDMENT FOUR

NSN 7540-01-152-8067 OPTIONAL FORM 336 (4-86)

Sponsored by GSA

FAR (48 CFR) 53.110

Sol. No. 33330225RF0010020 1583808 Summit Dorm Replacement RFI Responses 1-17 Revised Date 5/20/2025

RFI Response By Answer

1 Is the Asbestos Survey from Versar in 1993 available to upload? My abatement contractor is requesting this information.

SI - Tartaro Yes, see attached and below

Description of Versar Volumes 1-3

Versar Volume 1 includes the Summary and Results

Review Sections for relevant project information

• 1.0, 3.0, 4.0, 5.0

• Description of FLWO Facilities 2.10, 2.11, 2.12

• FLWO Building Specific Inspection Reports 6.10, 6.11, 6.12

Versar Volume 2 includes

Appendix A – Chain of Custody Records, Laboratory

Results, and Quality Control Results

Versar Volume 3 includes

Appendix B – Inspector and Laboratory Analyst

Certifications

Appendix C- Description of Hazard Ratings, Hazard

Priorities, Hazard Ranks, and Response Codes

Appendix D – Field Assessment Worksheets and

Exposure/Risk Assessment Worksheets

Appendix E – Costing Worksheets

Appendix F - Photograph Log

2 Is it acceptable to abandon in place old Septic leach line? SI - Tartaro Yes, as long as the proposed approach does not impede or negatively impact the work of the project.

3 Would it be acceptable to alter the Septic design using drilled vertical holes for leach lines when hard rock is encountered?

SI - Tartaro Yes, as long as the proposed approach does not impede or negatively impact the work of the project and the proposed solution meets the septic system capacity requirements.

4 Is it acceptable to leave the existing culvert in its current location; and to relocate the proposed septic tank to the southeast (approximately 20ft) enough to avoid conflict with the culvert drainage

SI - Tartaro Yes, as long as the proposed approach does not impede or negatively impact the work of the project.

5 What activities, if any, can be done during the Spotted Owl breeding season? Please be specific.

SI - Tartaro Work in enclosed interior spaces that cannot be heard from the exterior of the building or on the work site will be permitted.

6 Who will be the building inspector, and will an inspection/permit card be issued?

SI - Tartaro The SI COTR or their approved agent will do the inspections and an inspection document will be provided.

7 Will the required special inspections be paid for by Owner or Contractor?

SI - Tartaro PENDING

8 Will retention be reduced to 5% when the project is satisfactory over 50% complete?

SI - Tartaro The reduction of retention is at the discretion of the SI

COTR

9 Would the Owner accept Retention Bonds in lieu of 10% retention being held?

SI - Tartaro No

10 Describe the Pay Application approval process, how long will payments take?

SI - Tartaro Refer to Division 1 Section 61 Schedules and Payments for additional information.

11 Who will designate the parking area for personal vehicles?

If SI, please advise where is this area?

SI - Tartaro The COTR may Limited parking may be available at

Basecamp

12 Is there a page limit for the technical proposal? SI - Tartaro No, there is no page limitation.

13 What is the anticipated start date? OCon/CMD Assume 60 days from proposal submission

Sol. No. 33330225RF0010020 1583808 Summit Dorm Replacement RFI Responses 1-17 Revised Date 5/20/2025

RFI Response By Answer

14 Temporary Shoring - Sheet No. A-103 is showing waterproofing from approximately 11’-0” above the first floor elevation to approximately 3’-6” below the bottom of the footing. With the steep slopes adjacent to the retaining wall, the excavation will require temporary shoring at the Commons Building First Floor and New

Dormitory First Floor. Sheet G-002 does not list this the shoring as a deferred approval. Please provide the extent of the shoring and the structural design.

SI -Tartaro (1) See Spec Section 312316 for additional information. (2)

Provide a new Deferred Submittal for, "6. Sheeting and

Shoring Shop Drawings". (3) Provide a new Structural

Deferred Submittal for "Sheeting and Shoring Shop

Drawings" and provide engineered Shoring Shop

Drawings.

15 Waterproofing Drainage - Sheet No. A-103 Detail 3, Wall

Section – New Waterproofing, is calling to ‘Apply

Waterproofing Membrane, Drain Board, and Filter Fabric at

Exterior of Retaining Wall From Bottom of Foundation to 1’-

0” Above Finish Grading at Building, Extend Waterproofing

The Length of Rip-Rap’. a. The detail is not showing a perforated drain pipe with sock and gravel at the top of the footing to remove the water from behind the wall. Is this required with the drain board? If yes, please provide a specification section and details.

SI -Tartaro

BWS

(1) Provide drainage pipe at base of Common Building and New Dormitory Lobby - CMU Building walls and outfall in riprap at grade adjacent to parking lot.

Coordinate changes with 3/A103, B/A301 , 1/A501. (2)

Provide waterproofing and drainage pipe at base of Pump

Room wall with outfall at concrete splash block location to be determined. Coordinate changes with A104 and A301

5/A301 (3) Provide drain pipe at base of foundation wall membrane with filter fabric and 6" of gravel and coordinate with sheet waterproofing.

16 Waterproofing Drainage - Sheet No. A-103 Detail 3, Wall

Section – New Waterproofing, is calling to ‘Apply

Waterproofing Membrane, Drain Board, and Filter Fabric at

Exterior of Retaining Wall From Bottom of Foundation to 1’-

0” Above Finish Grading at Building, Extend Waterproofing

The Length of Rip-Rap’. b. The Rip-Rap shown on Civil

Drawing C-102 is located along the full length of the New

Dormitory. Please clarify ‘The Length of Rip-Rap.

SI -Tartaro Extend the length of the waterproofing to the corner of the Mechanical Room (Note 034) as indicated on 1/A104

FP and outfall in riprap at grade adjacent to parking lot.

Coordinate changes with 3/A103, B/A301 , 1/A501.

17 Concrete vs Gabion Retaining Walls - Sheet No. S101 is showing a site concrete retaining wall and footing per

Detail 5 on S502 and civil sheet C102 is showing a Gabion

Basket Retaining Wall at the last leg. Please clarify the extent of the concrete retaining wall versus the extent of the gabion basket retaining wall.

SI -Tartaro Comply with Note 16 on C102 and Gabion Retaining Wall information and details. There is no concrete retaining wall at the Gabion wall location.