P16PS02015_AMENDMENT_0007.pdf

(x)

P16PS02015

x x

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 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 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.

x

PDS

Denver CO 80225-0287 P.O. Box 25287 12795 W. Alameda Pkwy DOI, NPS, DSC Contracting Services

PDS

Denver CO 80225-0287 P.O. Box 25287 12795 W. Alameda Pkwy NPS, DSC Contracting Services Div

VAMA 16126408/10/2016000007

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

08/10/2016

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 date, 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.)

The purpose of this amendment is to:

A) Incorporate the attached questions and answers.

Proposal submissions remain due on September 12, 2016 in accordance with the procedures provided in Amendment 0005. All other terms and conditions remain unchanged.

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)

Aaron Adams

STANDARD FORM 30 (REV. 10-83)

Prescribed by GSA

FAR (48 CFR) 53.243

NSN 7540-01-152-8070

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 .

QUESTIONS AND ANSWERS

SOLICITATION P16PS02015, AMENDMENT 0007

1. General Note #13 on sheet A601 indicates to salvage and reinstall historic metal weather stripping on sashes to be restored. Please confirm this work is associated with Option A.

Correct.

2. Sheet A509 contains a note that designates removal of coal tar pitch from foundation masonry to 95% condition. Specification section 334600 paragraph 3.2.G states to remove coal tar pitch by pressure washing. Has removal of coal tar pitch from the foundation been tested to verify effectiveness of this removal process on the foundation?

Yes, this work was done successfully at the north portico foundation walls in a previous phase of construction.

3. If coal tar pitch cannot be successfully removed by pressure washing to adequately prepare brick substrate to receive new foundation damp proofing membrane according to manufacturer’s written instructions and warranty requirements what method of removal will be permitted?

Existing coating that is well adhered may remain in place.

4. Shutters are noted to have operable louvers on sheet A607. Are all restored shutters required to have louvers in operable condition once restored?

Yes. The existing louvers are generally in excellent condition and very little repair work is required.

5. The bird deterrent netting vendor has stated that the net material specified is black, and is available in different colors to blend in with the building background. Please confirm if a colored net should be basis of design for the bird deterrent net material.

Final color selection will be made at the submittal/sample phase of construction.

The manufacturer has indicated there is no cost differential for the available colors.

6. In Section 012700 3.2 Schedule of Options the Base bid is not referenced, this conflicts with Window/Storm Restoration schedule A601,A602. The Base bid on A601,A602 does not reference sash restoration, only in Option ‘A’. Please clarify what work is to be performed? And shall we reference A601, A602 or 012700. 3.2?

Section 012700 3.1 List of Contract Line Items is the Base Bid. The sash restoration is not included in the base bid. The sash restoration is only in Option A.

7. In General Notes A601, A602, note #6 do all interior finishes remain< paint and stain? And in note #12 Provide UV window film to interior of all window sash, does this include storms as well both existing and new?

All historic interior paint finishes are to remain on all window sash and stops.

They have the original decorative faux wood finish still intact. The UV film is to be installed on the interior face of the historic sash, not the storms. The existing failing film should be removed.

8. In Key Note #6 Shutters – Please define prepare?

Prepare the surface for paint. Follow all surface preparation recommendations from the paint manufacturer. Remove loose paint. Sand smooth rough areas. Fill low spots. Feather sharp edges of existing paint to remain, etc.

9. Is all Historic Wrought Iron (including Balcony and Window Grilles) to be stripped of all existing paint finishes, original or not?

Yes. There are no original finishes on these items.

10. Is all Historic Wrought Iron to be abrasive blasted, to the SSPC-10 white metal standard?

Yes.

11. Is the depth of the abrasive blasting to be tested by the Contractor, and certified to leave a variation of 1.5 mils deep in the surface of the wrought iron?

12. Is the paint system to be applied the 3-step Tnemec paint system, or oil alkyd?

The question does not indicate what substrate is being referred to. The Tnemec system is for the historic exterior metal railings, grilles, and balconies. The alkyd system is for all other metals.

13. Are all new decorative SS railings to be painted?

14. What paint should be used to paint the SS railings?

The alkyd system specified in 09-9113-3.6 B.

15. On Detail 2/A509 a coaltar coating is shown on lowest exposed course of stone Does the coaltar coating extend below grade to the footing? Will National Park Service write a specified removal procedure for the coaltar coating? Removal of a coaltar coating is usually performed with scraping, chipping, grinding and scarifying resulting in an Habraded surface which might not be desirable on historic masonry.

The coal tar coating only existing on the below grade brick, not on the exposed stone above grade. This removal work was done successfully using power washing and light hand scraping at the north portico foundation walls in a previous phase of construction. Existing coating that is well adhered may remain in place.

16. The Section L included in Amendment 0006 included electronic submission options. Is electronic submission an option?

The purpose of Amendment 0006 was to update the SF1442. The original solicitation body was included by error. The submission procedures in Amendment 0005 remain in effect.