Sol_140P2024R0032_Amd_0004.pdf

(x)

140P2024R0032 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 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

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

07/10/20240004

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

07/09/2024

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.)

GRSM 149368 - Rehabilitate Sugarlands Headquarters, GRSM 149285 - Rehab Sugarlands Water and Wastewater Systems

The purpose of this Amendment 0004 is as follows:

1. Provide responses to RFI questions (see attached)

2. Provide a revised "B08_Attachment 08_Price Schedule Rev 1"

3. Provide a copy of "011100 SUMMARY OF WORK_Amendment01"; "012300 ALTERNATES_Amendment01";

"015000 TEMPORARY FACILITIES AND CONTROLS_Amendment01"; "230523.13 SF - Butterfly Valves for HVAC Piping"; "230923 Direct Digital Control (DDC) System for HVAC"; "Appendix J"; and

"Site and Utility - Park Office Trailers".

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)

Matthew Carpenter

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

2 180

CONTINUATION SHEET

REFERENCE NO. OF DOCUMENT BEING CONTINUED PAGE OF

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

140P2024R0032/0004

All other terms and conditions of the solicitation remain the same.

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

Sponsored by GSA

FAR (48 CFR) 53.110

RFP 140P2024R0032

Amendment 0004 Page 3 of 21

Question RFI Question Under Solicitation RFI Answer

1.A.

HQ - C2.0 and AS00 show an 8’ area around the building that is to be excavated for waterproofing and drain installation. The south elevation shows the basement level to approximately 9’ depth of fill to be removed if the entire height of the basement wall is to be waterproofed. Confirm the entire height of the basement walls to be waterproofed or just down to the height of the new drain system?

Entire height and turn out of footing (as applicable) to be waterproofed.

1.B.

OSHA requires assuming class C soils, disturbed 1.5:1 slope for excavation, plus a work area of at least 4’, will require excavating approximately 18’ from the south edge of the building. Will the existing building withstand the vibration of installing sheet piles since the area between the building and the area of limit of disturbance is less than 18’?

This is a contractor means and method. Three potential options for waterproofing installation 1) Lay back slope, 2) sheet pile, or 3) trench box or similar equipment/ viable method.

1.C.

Can the sidewalk be removed and replaced to eliminate the need for sheet piles?

The Park has no objections to removing sidewalk to accomadate the excavtion for the waterproofing. However, the elevation difference would result in a much larger area of disturbance, primairly in the front of headquarters, that would result in needing to adjust the contruction limit. The means of how to do this work will be left up to the Contractor. If the contractor needs to extend the construction limits for this purpose, then they should request a variance from the Contracting Officer post-award.

1.D.

Is the sidewalk sound enough to accommodate equipment being operated on it for excavating access?

Appropriate matting methods could be used to protect sidewalk, or remove sidwalk and replace. Depending on what equipment the Contractor utilizes, the concrete may not be suffiecent. It is the Contractor's responsibilty to project features to remain and any damage will be the Contractor's responsibilty to repair or replace.

1.E.

Can the limits of disturbance be extended to allow for an area to stockpile the excavated fill as well as equipment access?

The construction limits are shown on AS01 and will not be expanded for the purpose of stockpiling materials. The contractor should schedule and coordinate their work to effectively utilize the provided space.

Amendment 0004 Page 4 of 21

Question RFI Question Under Solicitation RFI Answer

1.F.

Is it known whether the basement window wells structure extend to the bottom of the basement foundation? If not, is waterproofing required below them, meaning they will likely need to be replaced.

Existing drawings show structure as full height, surveying was unable to determine this but waterproofing is required to wrap full height of existing window well walls down to footing in locations where new drain pipe is to be installed.

1.G.

Spec section 334600 does not specify the type of drainage material to be used in the subdrain, please clarify.

Geotextile Filter Fabrics: Fabric of PP or polyester fibers or combination of both, with flow rate range from 110 to 330 gpm/sq. ft. when tested according to ASTM D 4491.

1.H.

S1.0 shows areas to waterproof foundation walls that are not shown on AS00; porch, stairs, etc. Please clarify the correct drawing to follow.

Reference sheets C2.0; C3.0; C4.0; AS00; D01; A01

2.A.

HQ - Detail 2.3/S11 is not depicted as the same layout from 2/S11. Please confirm angles will not be required on the west side of the beam.

2.B.

M005 shows four ducts coming through the chase area. Overlaying the four duct penetrations over this area appears to much larger than what may be required.

There is only one penetration on the west side of the beam. Please advise.

Chase area my be larger than needed. Any possible changes to what is shown would need coordinated with all trades early in the project and approved by the NPS.

2.C.

Please advise if the existing beam will be required to be shored while the concrete is to be removed and angles weld on each side if the angles are installed prior to cutting out the slab.

Yes.

HQ - Detail 4/S20 calls for a 2”x2”x3/8” plate welded to an anchor that will be on top of the existing wood floor.

This appears to be required at both areas where the floor is to be cut out. Could a drilled and epoxy anchor be utilized in lieu of having a plate over a finished historical floor or add additional fasteners?

Yes, preferred product submittal should be submitted for approval

Amendment 0004 Page 5 of 21

Question RFI Question Under Solicitation RFI Answer

HQ - Can JCI Metasys be added as an approved controls option for the new BAS?

Alternate control options may be considered but must be fully compatible with the contract requirements. Any proposed alternate should be submitted for review and acceptance post-award.

HQ - Detail 1/S20 is showing 2’ additional concrete to be removed around the perimeter of the new elevator shaft. With the excavation of 5’ for the pit and foundation, and with the requirement to waterproof the elevator shaft, this dimension needs to be at least 4’ to 6’ to allow for work space and the soils undermining the slab. Not sure how flowable fill would help from undermining the slab for a 5’ deep excavation. D01 appears to only show the area of slab demo for the elevator shaft and not the area required to accommodate the work. Please make reference the demo should be around 14’ x 16” since work will be required beyond the walls and foundation.

Assume corrected Lower Level slab demo to be 15'-6" x 13'-9" min. to allow for sufficient working clearance around pit walls.

HQ - 2/S20 shows an angle iron slide between the beam and existing slab. This angle is shown to secured w/ an anchor that is to be embedded 4”, meaning this anchor will likely be around 6” long. Not sure how to get drill and install an anchor in this location. Can this angle be flipped to where it is secured below the floor, this area is covered w/ new ACT.

Vertical leg may be oriented downward. Stiffener plates may be required.

HQ - 1/S21 shows a note to shore the truss the truss prior to cutting. It appears this truss is not over the beam on the first floor. Please confirm the floor itself will be enough to support the truss in the two needed locations or will the shoring be required to extend to the basement.

Shoring to be continuous to basement.

Amendment 0004 Page 6 of 21

Question RFI Question Under Solicitation RFI Answer

HQ - 1/S22 – note stating “carefully saw-cut puket to allow rod installations” and shows the concrete removed for the CMU to set on the beam. Is the entire area above the beam to be removed for the CMU to bear on the beam?

Yes, along the length where the CMU will bear.

9.A.

Spec section 01 50 00, 2.2 B states to provide two prefabricated buildings to be located at the former Greenbriar Stables. Please provide a map with utility layout of where the trailers are to be located, if we are to connect to utilities, water, sewer, and electricity.

There is water, sewer, and electricity available at the Greenbrier Stable location. There is a 2 inch service line that runs across the bridge and a 6" sewer line that crosses the creek. There is also an existing electrical drop to one of the existing barns. The facilities has not been used in a couple of years and utilities will need to be checked to ensure they are serviceable. The Contractor will be responsible for the cost of coordination, layout, installation, and maintenance of the temporary utilities (or acceptable alternative)for the trailer facility. See attached "Site and Utility - Park Office Trailer" document for information available for the existing utilities.

9.B.

Confirm the contractor is not responsible for the monthly utility bills.

The Contractor will be responsible for paying for all utility bills for temporary facilities including the temporary park office at the Greenbrier Stables including electric, water, sewer, and telecommunications. Requirements in Section 01 50 00 TEMPORARY FACILITIES AND CONTROLS, paragraph 1.3.A have been revised (see attached).

9.C.

States two trailers as well as states 1,200 sf. Is this two at 1,200 sf each or total square footage?

A single prefabricated unit with minimum area of 1,200 square feet. See attached Section 01 50 00 TEMPORARY FACILITIES AND CONTROLS, paragraph 2.2.B.

9.D.

Confirm a typical jobsite trailer that has an office in each end, conference room in the middle, with a separate bathroom would be suffice. These trailers are considered 12x60 but the 60’ includes the tongue of the trailer leaving approx. 12x54 for around 640 sf each.

This is sufficient for the contractor's field office. The temporary park office should be a minimum 1,200 square foot single unit. The Contracting Officer's trailer shall meet the minimum requirements specified in the contract. See specification 01 50 00, paragraph 2.2.

Amendment 0004 Page 7 of 21

Question RFI Question Under Solicitation RFI Answer

Spec section 01 50 00, 3 states to provide a trailer for the contracting officer. Confirm this project requires this office, knowing sometimes this gets left in the specs.

Space for the Contracting Officer or Construction Management Representative is required.

Section 01 31 00, confirm the contractor’s environmental manger duties can be assigned to the project superintendent.

Yes, as long as the minimum qualifications outlined in 01 31 00, Paragraph 1.8 are met.

Section 01 31 00. 1.4, D implies the site personnel needs to consist of two (2) superintendents, QC, and Safety Officer. Please verify the budget for project allows for this much project staffing and / or clarify who must be on site full time for the project.

Two Project Superintendents are required.

Solicitation, Section H, please confirm the project manager is not required to be on site full time.

The Project Manager is not required to be on site full time.

Section 01 31 00, 1.4, D please confirm the Historical Preservation Specialist is not required to be on site and from 01 35 91, 3.5, A, 5, an onsite staff can provide the daily inspections reporting.

Correct

Section 01 35 91, 1.5, C Historical Material does not make mention of the marble wall panels that are to be removed and salvaged for reuse, confirm these items are historical as well.

Confirmed, they are historical.

HQ - Drawing D003, note 02-68 states to “demolish flooring as needed to level and stabilize for installation of new mechanical equipment, investigate prior to starting demolition to not impact structural integrity”.

The drawing shows an area of over 50 feet for this note.

We understand this is the new equipment room. Please clarify what the anticipated scope of work for this note is to include. What is the existing floor material? There is not any notes to demo the floor material while the

The indicated area has a mixture of slight level changes throughout. It has a finish of VCT that is to be removed leaving a wood plank subfloor to remain. Leveling is needed as mechanical equipment requires it.

Amendment 0004 Page 8 of 21

Question RFI Question Under Solicitation RFI Answer finished room schedule in room 200 does not show any either. Please clarify.

HQ - Drawing D003, is there tile in the upper-level restroom, wall or floor that is to be demolished?

No tile present

18.A.

HQ - Drawings D020 & D021, note 02-40, states “in areas not indicated to be re-roofed remove any damaged and/or broken slate shingles, remove wood nailers at edges of sloped and gabled roofs (approximately 12 inches from edge)”. On A22, note 07-02, states to assume replacing 100 broken tiles with attic stock.

Please clarify these 100 tiles includes the 12-inch area at the edges.

Correct, the attic stock is intended to be used to replace broken/damaged tiles on the entire roof area if replacement is needed; 12 inch area included.

18.B.

Please clarify the 12-inch area to replace the shingles and nailers at the bottom edges of each roof area only and not at the gables, valleys, and ridges.

Shingles are to be reinstalled in the same locations where they were removed; including gables, valleys, and ridges. Refer to details on sheets A41 and A42 for further understanding.

HQ - Drawings D020 – D0022, note 02-48 remove asbestos caulk, please confirm the caulk is only at the heads of the windows where there is stone shown with the dashed line at the header and along the rake of the roofs and not the complete windows, nor all the windows, nor the windows in the dormer areas where there is no stone.

Reference sheets AR01-AR03 and D20 - D22 for aesbestos removal locations. Consider locations where dark, dashed line per Legend or keynote 02-48 is shown on D-series sheets, around all exterior doors per General Note on AR-sheets, and around select interior doors per keynotes on AR-sheets to be extent of asebestos-containing caulk.

Amendment 0004 Page 9 of 21

Question RFI Question Under Solicitation RFI Answer

HQ - 03 30 00, 2.4 A. 1. Cement Types: We cannot guarantee that suppliers will continue to provide Type I/II cement throughout the project since all sources are transitioning to Type IL cement. Is Type IL acceptable?

Type IL can be used for applications where type I/II can be used.

Although due to typically being ground finer than type I/II, it may be susceptible to faster set times. See #22 below.

HQ - 03 30 00, 2.10 B Cementitious Materials: This portion of the specification requires a minimum of 40% cement replacement while 2.4 A 3 sets a maximum of 40% replacement using fly ash and slag. We cannot guarantee any level of replacement due to supply limitations on pozzolans in the area. Our plants are not equipped to batch more than 2 types of cementitious material at a time, which would prohibit the use of slag. What level of cement replacement is required and acceptable?

Limit pozzolans to 40 % max.

HQ - 03 30 00, 2.13 A 1 Temperatures and Delivery Times: Please be advised that haul times to this job, particularly during heavy traffic times, may exceed 45 minutes from the time the truck leaves the plant. Given the 75 and 60 minute time limitations, deliveries may not be possible during high temperature periods.

Mix placement is allowed up to 90 minutes after batching, also consider the use of a retarding admixture. The contractor should consider concrete placement during early morning hours, this helps with traffic and temperature.

HQ - 32 13 13, 1.4 B 1 Design Mixtures—Do the paving mixes have to be designed by an outside lab, or can they be developed internally if we have DOT certified lab?

If internal DOT lab is certified, it may be used.

HQ - 32 13 13, 1.2 E Material Testing—What is required for service-record data on aggregates in regard to alkali reactivity, and what are the thresholds for acceptance in the testing?

Provide service-record data indicating the aggregate used in the concrete conforms with ASTM C1260, Standard Test Method for Potential Alkali Reactivity of Aggregates.

HQ - 32 13 13, 2.3 B Normal-Weight Aggregates—What will be required in terms of documentation for the service-record data on the aggregates?

Source must document 10 years of providing the aggregate meeting ASTM C33, Class 4M

Amendment 0004 Page 10 of 21

Question RFI Question Under Solicitation RFI Answer

HQ - 32 13 13, 2.3 B 1- ¾” aggregate is not available in this market. We use and recommend 1” aggregates for structural and paving mixes. Is this acceptable?

1" aggregate is acceptable for concrete curbs and paving, provided an appropriate float finish is applied. This does not apply to any structural concrete members.

HQ - 32 13 13, 2.7 A 1 Temperatures and Delivery Times:

Please be advised that haul times to this job, particularly during heavy traffic times, may exceed 45 minutes from the time the truck leaves the plant. Given the 75 and 60 minute time limitations, deliveries may not be possible during high temperature periods.

Acknowledged. Plan work accordingly.

HQ - 04 22 00, 2.3 G. Aggregate for Grout-- Coarse aggregate for masonry defined by ASTM C404 requires #8 or #89 stone. These are not available as concrete aggregates in this area, and we typically use #7 stone for these applications. Is #7 stone acceptable?

Mix design sumbittal should be submitted for review. When an aggregate does not meet the ASTM C 404 grading requirements, it may still be used provided the requirements of ASTM C 404 section 4.2 are met. These requirements prescribe minimum and maximum aggregate sizes and a minimum grout compressive strength of 2,000 psi (13.79 MPa).

W/WW - 03 00 05, 2.2 F 2 Fine Aggregates—Consistent supplies of quality natural sands are very limited in this market, and we typically have to barge this sand from the Ohio River for technical specification jobs such as this. Given the haul distance and its impact on LEED credits, are manufactured sands acceptable?

Natural sands are preferred however manufactured sands may submitted as an alternative.

W/WW - 04 05 13, 1.3 B Coarse Aggregate—Coarse aggregate for masonry defined by ASTM C404 requires #8 or #89 stone. These are not available as concrete aggregates in this area, and we typically use #7 stone for these applications. Is #7 stone acceptable?

Yes, #7 stone will be an accepted alternative if #8 or #89 stone is not reasonably available.

Amendment 0004 Page 11 of 21

Question RFI Question Under Solicitation RFI Answer

W/WW - 04 05 13, 2.3 C Masonry Grout—Specifications do not allow admixtures in masonry grout. If the grout provided is ready mix, water reducer admixtures and possibly retarders will be needed to meet haul times and maintain workability. Are water reducers and retarders acceptable?

TMS 602 specifications and ASTM C467 standards must be met. If any type of admixture is needed to meet the required haul times then water reducers or retarders may be presented with the grout mix submittal for consideration and approval.

HQ - Section C of the solicitation indicates that the proposed work includes stabilizing the foundation and bridging voids beneath the structure. In review of the documents, this scope does not appear to be depicted.

Please advise what the extent of this scope entails.

The Section C description may not be completely accurate as it reflect an early scope determination in development of the project. The scope of this construction contract is in the drawings and specifications.

HQ - Section C of the solicitation indicates that the proposed work includes providing handicap access to all three floors. Currently, the bid documents appear to only provide handicap access to the lower level and main level. Please advise if handicap access is required at the upper level.

Handicap access is not required to the upper level.

Quantities in Section 01 22 00 Unit Price. A/E please clarify if these quantities are an addition to the plans or are we to bid using only these quantities.

Proposal shall be based on these quantities.

01 31 00 Project Management and Coordination, 1.4 Submittals, D., 1. “Letter designating (2) project Superintendents,…” A/E please confirm two(2) Superintendents are required.

Two Project Superintenedents are required.

01 50 00 Temporary Facilities and Controls, 2.2 Temporary Facilities states, “ Two prefabricated, ….minimum 1,200 square feet.” A/E please verify is 1,200SF for each unit or total.

A minimum 1,200 square foot single temporary office building shall be provided for temporary park office space. This will be clarified in an amendment. See attached amendment to Section 01 50 00 TEMPORARY FACILITIES AND CONTROLS, paragraph 2.2.B.

Amendment 0004 Page 12 of 21

Question RFI Question Under Solicitation RFI Answer

01 35 91 Historic Preservation Treatment states a Historic Preservation Treatment Specialist is required.

A/E please confirm a Historic Preservation Treatment Specialist is required for this project.

Yes, a Historic Preservation Treatment Specialist is required.

01 50 00 Temporary Facilities and Controls, 2.2 Temporary Facilities, documents do not indicate existing utilities are available on-site for the temporary office location. A/E please advise if electrical, water, sewer, internet, and communication utilities are available on-site. If available, please provide map with location of tie-in points.

For the Contractor Field Office and Contracting Officer's Filed Office, Spec Section 01 50 00-Temporary Facilities and Controls, Part 3, 3.2 Temporary Utility Installation indicates existing facilities to connect to for electrical, telecommunications, sewer, and water. HVAC, lighting, sanitary, and telecommunications services will require temporary installations as well as electrical at a later point in time. Refer to civil and MEP drawings for building service entry points. Coordinate with Park for any preferred site location tie-ins.

For the temporary Park Offices, there is water, sewer, and electricity available at the Greenbrier Stable location for the temporary park office space. It is assumed that there is also an existing telecommunications line. There is a 2 inch service line that runs across the bridge and a 6" sewer line that crosses the creek. There is also an existing electrical drop to one of the existing barns. The facilities has not been used in a couple of years and utilities will need to be checked to ensure they are serviceable. The Contractor will be responsible for the cost of coordination, layout, installation, and maintenance of the temporary utilities (or acceptable alternative) for the trailer facility. A map locating these connection points is not available.

See attached Site and Utility - Park Office Trailer document for information available for the existing utilities.

Amendment 0004 Page 13 of 21

Question RFI Question Under Solicitation RFI Answer

Materials must be extracted, harvested, or recovered, as well as manufactured, within this 500-mile radius. We are encountering difficulties in meeting some of these requirements and request that the regional materials portion of the specifications be either eliminated or revised. Similarly, for Certified Wood, most specifications mandate the provision of “FSC Pure or FSC Mixed Credit” wood, which is costly and has long lead times. A/E please advise.

It is desired that products be obtained within 500 mile radius and meet FSC sourcing requirements as specified, but if this proves to be a challenge or costly discuss alternatives or substitution requests with Contracting Officer.

A/E please confirm that items that do not state “Bid Alternate” are base bid specially on C002 and C003. i.e. :

a) C002 and C003 2" sch 80 conduit with pull string for future fiber optic installation; b) C003 indicates Meter box and meter.

a) The 2” sched 80 conduit with pull string is included as part of the bid for each water main. The bid alternate “Water Main Line AB” includes a 2” schedule 80 conduit with pull string as part of the bid alternate (Bid Line Item 6 – W/WW Option 1 Extended System). The base bid item “Water Main Line A” also includes a 2” sched 80 conduit with pull string as part of the base bid (Bid Line Item 2 – Water System Replacement).

b) The meter box and meter are part of the base bid and shall be replaced as part of the 1” water service line replacement (Bid Line Item 2 – Water System Replacement).

W/WW - Drawings C005, and others states waterline installed by HDD under pavement. This HDD does not appear in the abbreviations. Confirm HDD means Horizontal Directional Drilling.

Correct, HDD stands for Horizontal Directional Drilling.

For preparations of the as built drawings, will a site survey prepared by a registered surveyor be required for the area around the building and for the areas of the utility work?

Yes, see Specification Section 01 73 00, Paragraph 1.2 and 1.3.

Please confirm the contractor is not responsible for paying for the utilities for the relocated HQ staff building, as well as daily and weekly cleaning.

All temporary facilities' utility costs and utility bills shall be paid by the Contractor. See attached 01 50 00 TEMPORARY FACILITIES AND CONTROLS, paragraph 1.3.A.

Amendment 0004 Page 14 of 21

Question RFI Question Under Solicitation RFI Answer

W/WW - Please provide the amount of time one might consider for obtaining the stream crossing permits that are required, according to appendix G report.

ARAP review time is estimated to take 30 days.

HQ - Appendixes H, J, and I do not appear to be included in the volume 3 specification. Need to see the geo report (appendix H), looking to see if stone or rock may be anticipated in the excavation for the elevator pit.

Should rock be anticipated, if so, should new fill be required for the backfilling of the pit walls be utilized?

Appendices H and I are included in the Volume 3 specification, please redownload the document or allow it additional time to load the full document. Appendix J is included with this amendment (see attached). Geotech information specific to the HQ site was not made available for the design. New fill may be required following installation of elevator pit walls. See Soils notes on S01 and Detail 1/S20. Soil note 5. on S01 requires contractor to engage with a geotech engineer as needed to determine foundation requirements for the elevator shaft.

HQ - Drawing S12 appears to show the mech shaft as existing, D03 shows the new shaft at a different configuration S12, please clarify D03 is the proper opening sizes required.

Reference D02, D03, A02, A03, A40 for the opening sizes to assume for bid purposes.

HQ - Note 02-37 on D03 states the floor system on the upper level is wood framing. Please confirm the two areas on the sides are wood. Can not find any details or section cut showing the framing needed back at these new floor openings. Confirm going back 2x framing members is sufficient or if concrete, are the beams encapsulated with concrete as on the main level?

Existing flooring systems are based per existing historic drawings and non-invasive survey. The flooring system of the West & East Attic areas are steel framing with wood slats spanning across. The rest of the upper level floor structure consists of concrete wrapped steel framing with a 5" reinforced concrete slab, topped with a 1" cement layer and VCT.

HQ - Note 5 on S12 states the floor to be concrete since the air handler’s new beam support is to be bolted to the concrete floor. Please clarify the composition structure of the floor of the upper level.

Existing flooring systems are based per existing historic drawings and non-invasive survey. The flooring system of the West & East Attic areas are steel framing with wood slats spanning across. The rest of the upper level floor structure consists of concrete wrapped steel framing with a 5" reinforced concrete slab, topped with a 1" cement layer and VCT, over post and beam framing.

Amendment 0004 Page 15 of 21

Question RFI Question Under Solicitation RFI Answer

What amount of time with the HQ staff need to relocate themselves to the new temporary facility we are to provide? Needing this to work into our schedule. Need this to include the time for IT as well.

The park will need 2 weeks once all the temporary facilities are installed and utilities are operating.

Confirm the park will coordinate and pay for their own internet connection for the new temporary facility.

Per specification section 01 50 00, article 1.3A: Park to cover temporary facility costs for Park. The Contractor will be responsible for coordinating, connection, providing high speed internet servcie at their expencse (015000, paragraph 2.2.B.5).

The contractor will be reponsible for paying all temporary utility service bills, including internet service.

HQ - Section 01 22 00, Unit prices, the mortar replacement is called out to be SF while the Bid Schedule shows LF. Please confirm the LF method is correct.

Linear Feet is to be used.

W/WW - Drawing C14 of the waterline project shows the fiber optic line to be re-routed from under the proposed pump house addition. Please confirm the fiber optic provider will be performing this task.

The utility provider will relocate and install fiber optic line. The construction contractor will be responsible for this cost and shall coordinate work with the utility provider.

W/WW - Notes 1 and 2 on both drawings C012 and C013 state Bid alternate for the CIPP. Which alternate are these to be included in or is the CIPP in the base bid and to replace the pipe to be included in CLIN 7 (Water/Waste alternate 2)?

The lengths of pipes with Rehab Notes indicating BID ALTERNATE – CIPP-LINE PIPE were designated as “Priority 2” for CIPP-lining because their condition was not as poor as other lengths were CIPP-LINE is recommended as Base Bid. Those lengths were to be considered as a bid alternative so that they could get CIPP-lined if the budget allowed, otherwise they were to be left alone and re-inspected in the future. AKA, for those BID ALT – CIPP LINE PIPE lengths, the Base Bid is do nothing. A revised Contract Price Schedule and Section 01 23 00 ALTERNATES is included with this amendment (see attached).

60.A.

Section L. E. 3 Factor 1 – Key Personnel Experience requires resumes for Key Personnel identified in Section H and listed below. Both of these references imply a single Superintendent. Specification Section 01 31 00 1.4 D.1 requires a letter designating (2) project

Yes, two resumes are required, one for each superintendent.

Amendment 0004 Page 16 of 21

Question RFI Question Under Solicitation RFI Answer

Superintendents…” Does the NPS require two resumes, one for each of the superintendents identified as being required in Specification section?

60.B.

Please confirm two superintendents are required by

NPS.

Two superintendents are required.

Spec Section 01 31 00, 1.6 refers to Project Web Site.

Please confirm the Sharepoint Project Website will be utilized for this project. If not, what will be utilized for communication throughout the contract period?

NPS will provide ProjectTeams for Construction Management.

Spec Section 01 32 16- Construction Progress Schedule Part 2, 2.2 G required the contractor to provide the contracting officer a licensed copy of the software used to create the Construction Baseline Schedule. This is not a typical cost. Please confirm this is required for this project.

This is not required

Spec Section 01 11 00 Summary of Work Section 1.10 additional reports, Item D. Refers to Appendices for Mitigation Summary Reports (PEPC, SOF). We are having difficulty locating these reports. Can the Government please identify where these documents are located in the solicitation?

The Mitigation Summary is what is included in Volume 3 specifications as Appendix E, F, and G located on SAM.gov.

Spec Section 01 57 23.10 Under-an-acre Pollution prevention plan is included. Please confirm the NPS requires a separate UPPP for the project. Is this specific to PMIS 149368 Headquarters Rehabilitation scope of work?

The HQ project disturbs less than 1 acre, and per NPS guidance, would need an Under-An-Acre Pollution Prevention plan to be prepared by the contractor as stated in 01 57 23.10. The Water and Wastewater project will require an NPDES CGP and Stormwater Pollution Prevention Plan (SWPPP).

71.A.

The Spec Section 01 11 00 Summary of work indicates Certification of the project with USGBC is not required.

Spec Section 01 81 13 Sustainable Design Requirements:

LEED is incorporated and states LEED progress reports are required concurrent with each application for Payment. HQ - Please confirm all requirements of the

LEED certification with USGBC is not required but compliance with certain prerequisites and credits are required as included in Spec Section 01 81 13 and Summary 01 11 00, article 1.2, C., 2.

Amendment 0004 Page 17 of 21

Question RFI Question Under Solicitation RFI Answer

Spec Section 01 81 13 Sustainable Design requirements:

LEED are required for this project.

71.B.

Does this spec apply to both PMIS numbers, or only to the PMIS 149368?

Refer to 01 11 00 Summary of Work 1.2 Work Covered by Contract Documentsd: Section 01 81 13 is only applicable to PMIS 149368

Do the Superintendent, SSHO and QC Manager need to be 3 separate individuals?

For this project the Onsite-Superintendent cannot be responsible for or perform the Quality Control responsibilities. The person responsible for Quality Control can perform other duties such as On-Site Safety Manager and or Environmental for Quality Control and Safety.

Are there any phasing requirements? How many people will be in the building? Are there any temporary heating/cooling requirements?

"Existing building will be unoccupied at the time of construction per section 01 11 00, article 1.6., A., 1, which requires a weathertight condition be maintained.

The contractor should maintain the facility such that temperatures and humidity levels are controlled to avoid damage to the facility as appropriate.

Per Sheet TS1, Key Note 6 the IT room is to remain functional and in use until the new IT room is constructed and in operation. This will require appropriate power and conditioning of the space. See attached update to 01 11 00 SUMMARY OF WORK, Paragraph 1.6.A.1.

Are soil boring reports available? If not, it will be assumed that excavation will be clear of rocks and obstructions.

Soil borings were not performed near the HQ building for this project. Contractor is to engage a Geotechnical engineer to investigate and evaluate existing subsurface conditions, per general notes on S01. No existing geotechnical reports near the HQ building are available.

HQ - Please provide bidding quantities for deteriorated underlayment.

Refer to Keynote 03-01 on Sheet A04 for estimates.

HQ - Please confirm the manufacturer of the existing roofing system and who carries the current warranty of the roofing system.

The roof system is a Virginia Buckingham Blue/Black slate and is original to the building (1939-40.) This slate is an S-1 grade slate (highest grade) and 18”x 9” x ¼” in size. No warranty is known.

Amendment 0004 Page 18 of 21

Question RFI Question Under Solicitation RFI Answer

HQ - Division 23 09 23 -12. The specification for the BAS appears to be a standard unedited specification. The specification lists a company that doesn’t exist in East TN. Would you consider an offer from Trane?

Native BACnet system is required per the specifications.

Automated Logic is a Native BACnet system and has a sales representative office in Knoxville, TN that serves the project area.

Contact: HSC, 3511 Papermill Dr., Knoxville, TN. 37909, 865-247- 0481. Other Native BACnet control systems may be considered if meeting the minimum product requirements. Hyperlinks to approved products are removed in an amendment to Section 23 09 23 Direct Digital Control (DDC) System for HVAC, and 23 09

23.13 SF - Butterfly Valves for HVAC Piping (see attached).

Spec 01 11 00 Pg 4 1.10B states there is a Historic Structure Report as an appendix. There is also reference to a Geo-Technical report and Mitigation Summary.

Where can we find these?

The available Historic Structure Report and a Geotechnical Report relative to the water project are included as Appendix C and Appendix H, respectively, in the Volume 3 specifications.

The Mitigation Summary is what is included in Volume 3 specifications as Appendix E, F, and G located on SAM.gov..

No geotechnical reports near the HQ building are not available.

LEED and Or EarthCraft is mentioned several times throughout the Division 01 specifications. Last year, EarthCraft and LEED requirements were deemed as not required thru RFIs. Please clarify if this project does follow LEED or EarthCraft submittal and certifications.

LEED certification with USGBC is not required but compliance with certain prerequisites and credits are required as included in Spec Section 01 81 13 and Summary 01 11 00, article 1.2, C., 2

W/WW - Last year an issue was brought up about the HDD of the by-pass line on the water rehab drawings and how there were concerns that it is not practicable solution for installation of this line due to the rock and roots. Discussion was made to open cut this path. The response was to follow the plans and specs for the proposal and value engineering related to this item may be discussed post-award. This HDD line is still a concern.

Is this value engineering post-award still an available option?

Yes, a value-engineering alternative post award is an available option.

Amendment 0004 Page 19 of 21

Question RFI Question Under Solicitation RFI Answer

Last year an RFI was answered about the amount of available attic stock of slate roof tiles was approximately

400. Shall we assume the same amount exists and that should be sufficient to accommodate this project scope?

Yes

HQ - Elevator: Drawings show clearances that won’t meet any elevator company requirement. This may require a different type of elevator system. A limited use/limited access (LULA) which requires less of a pit and only 9’3”overhead clearance. Can this be discussed as value engineering post-award?

The basis of design used is a 2100 lb. holeless hydraulic, twinpost above ground, one-speed elevator by one of the big three manufacturers and still appears to be available on the market per their posted product data, and meets all of the clearances and specs. Alternatives may be considered if they meet all applicable code and contract requirements.

HQ - Plans did not include a Material Schedule. i.e. 12 36 61.19 Quartz agglomerate countertops states, “colors and patterns as indicated on drawings.” A/E please provide a Material Schedule to bid specific material.

Assume mid to high quality for bidding. Submit samples for initial selection during construction.

HQ - Plans indicate to salvage the Tennessee marble wall panels. Due to the existing condition the marble wall panels are not in salvageable condition to remove and to ensure the panels are intact. Most of the panels will be required to be replaced. We suggest replacing them with new wall tile in lieu of salvage and reinstalling. This would be more cost-effective. A/E please advise.

Aside from having some holes from the plubing fixtures and storage shelves, there is nothing that indicates the panels cannot be salvaged. However, note that the holes will need to be patched as they will be reused and the area will be visible. It is of high priority to the Park that the panels be salvaged and reused. If panels cannot be salvaged to full extent notify contracting officer and coordinate for alternate scope.

Per the RFP, we are to assume an NTP date of November 1, 2024 for our schedule. There are a significant number of pre-NTP activities required (e.g. meetings, submittals, submittal reviews, permit applications, etc). These activities typically take two months' time. Should we assume a contract award date of September 1, 2024, to account for all required pre-NTP tasks?

Contractor's should assume a NTP of November 1, 2024. If this is unrealistic based on timing of the award, then that should be addressed with the post-award schedule submission.

Amendment 0004 Page 20 of 21

Question RFI Question Under Solicitation RFI Answer

Should we assume NTP is required to start our mobilization of temporary facilities for NPS personnel temporary relocation, or can these activities be performed prior to NTP?

Project Management and Coordination, 1.4 Submittals, Part E indicates NTP is required prior to any work commencing.

Mobilization of temporary facilities may be considered as part of site setup and coud be considered as work under an Administrative NTP prior to Construction NTP if requested by the contractor.

HQ - A/E please confirm we are to only bid six (6) specific locations to repair cracks as shown on sheet S10.

The areas depicted are based on a site visit from several years ago.

New cracks in slab may exist. Bid locations shown on documents to provide for comparable bids.

HQ - Sheet A63 Window Schedule General Notes D.

states, “Replace perimeter sealants after removal of asbestos containing materials.” Demolition sheets Keynotes 02-48 states, “Remove existing asbestos containing sealant at seams. Refer to hazmat drawings.” Hazmat drawings do not indicate an asbestos containing sealant at windows.” A/E please advise.

Reference sheets AR01-AR03 and D20 - D22 for aesbestos removal locations. Consider locations where dark, dashed line per Legend or keynote 02-48 is shown on D-series sheets, around all exterior doors per General Note on AR-sheets, and around select interior doors per keynotes on AR-sheets to be extent of asebestos-containing caulk.

HQ - Please confirm existing furnishing (Fixtures, Furniture, and Equipment) will be removed by NPS.

The Park intends to remove all office equipment and furniture prior to Contractor occupying the building. However, there may be minimal furnishings that need to be removed or relocated by the contractor. Per specification section 02 41 19 Selective Demolition, article 1.8, B., 1. the Contractor will relocate existing furniture.

94.A.

We have an additional questions regarding the swing space: Specification Section 01 50 00, requires us to provide two pre-fab or mobile units with … “6. Interior partitions with lockable doors to divide offices. 7.

Conference room, with table and chairs to accommodate 10 staff members.” Please provide the floor plan for this temporary office space for Park Offices so we can properly plan for interior partitions, number of offices required, and conference room.

The contract will need to coordinate the layout of the temporary park office with the Contracting Officer and provide appropriate submittals for review and acceptance. Additional guidance for the Park Office requirements can be found in Section 01 50 00 TEMPORARY FACILITIES AND CONTROLS, paragraph 2.2.B.

Amendment 0004 Page 21 of 21

Question RFI Question Under Solicitation RFI Answer

94.B.

Please confirm no office furniture and/or other furnishings are required other than the conference room table and 10 chairs.

Additional guidance for the Park Office requirements will be issued as an amendment.

There is no detail associated with the high side EPDM, only low side EPDM.

For proposal purposes it is anticipated that will require a stretch of copper cap flashing along such a transition. The EPDM would lap under and then also be stripped over the high side of the copper flashing. The copper flashing would then extend over the top edge of the slate and have a hemmed edge.

Please clarify on A22 general note 21 states leave gutters in place and protect throughout project.

A41 and A42 note 11 states remove and reinstall all gutters

Bidders should assume the intent is that the existing gutters and downspouts are to remain in place and be protected while the re-roofing work takes place. If they need to be temporarily removed to perform any other work, such as replacement of any deteriorated roof decking under/along the location where the gutters attach to the roof deck, the remove and reinstall existing notes would then apply (as needed). Assume any new underlayment is applied over any existing gutter attachment into the roof deck surface and that temporary removal and reinstallation of the gutters would be localized where spot deck deterioration is found following roofing removal/salvage.

Attachment 1 - 011100 SUMMARY OF WORK

Rehab Sugarlands Headquarters, Water and Wastewater Systems

GRSM – 149368, 149285 01 11 00 - 1

SUMMARY OF WORK

SECTION 01 11 00 - SUMMARY OF WORK

PART 1 - GENERAL

1.1 SUMMARY

A. This project includes PMIS 149368 and PMIS 149285 Sugarlands Rehabilitation projects.

B. Work for this Project includes PMIS 149368, the rehabilitation of a historic building.

C. Work for this Project GRSM 149285 includes replacement of water system piping and components;

rehabilitation of sewer piping and manholes; and expansion of an existing pump house. New water and sanitary utilities will service the Headquarters Building.

D. Integrate all elements of work across the Sugarlands area to establish and permit site access, staging, and support facilities for both projects. Coordinate scheduling and planning for utility connections with

Contracting Officer and utility project Contracting Officer’s Representative.

E. This Section includes the following:

1. Work covered by the Contract Documents.

2. Work under other contracts.

3. Contractor use of premises.

4. Public use of site.

5. Occupancy requirements for buildings.

6. Work Restrictions.

7. Special Construction Requirements.

8. Additional Reports.

1.2 WORK COVERED BY CONTRACT DOCUMENTS

A. Project Location: Sugarlands Headquarters Building, 107 Park Headquarters Rd., Gatlinburg, TN 37738;

Little River Ranger Station, 139 Park Headquarters Rd., Gatlinburg, TN 37738; Residential Area, Sugarlands Residence Road; Maintenance Yard, Park Headquarters Rd, Gatlinburg, TN 37738.

B. Work for the Rehabilitation of the Headquarters, rehabilitation of the wastewater system, construction of the water system, and construction of the new chemical storage room addition to the pump house will be a single phase under a single prime contract.

C. The Work consists of the following for PMIS 149368:

1. Sugarlands Headquarters Building: The Work includes the exterior and interior rehabilitation of the existing headquarters building at Great Smoky Mountains National Park. The project includes, but is not limited to, exterior repairs, interior reconfiguration, a new elevator, overhaul and replacement of exiting HVAC, plumbing, and electrical systems and telecom systems, fire suppression systems, waterproofing, and targeted site improvements to improve accessibility and site and building drainage. Temporary office facilities for limited administrative personnel will be provided while construction is underway.

2. Headquarters Project is designed to comply with NPS sustainability standards, to a level equivalent with the Silver Certification Level according to the U.S.