0005_Attachment F - PPI_Responses.pdf

Page Section Para.

1 4-Apr C101-C102

Referencing Attachment L - REFERENCE - Piers 11-14 Original Drawings, are the removable concrete slabs continuence from start of pier to end of pier, or are there sections of the utility tunnel not accessible from the deck of the pier through removable concrete slabs?

The removable concrete slabs should be from the start of the piers to the end of where the waterlines are located.

Not sure how much of the water line is accessible from the deck. Zac Stacy, zachary.a.stacy2.civ@us.navy.mil 0005

2 4-Apr C101-C104 What is the anticipated weight for the removable slabs? Unknown. Zac Stacy, zachary.a.stacy2.civ@us.navy.mil 0005

3 4-Apr C101-C104

For installation of appurtances on the piers, is there access from the top side of the deck or is the expectation that the appertunance work will take place from underneath the pier on the water?

Not sure how much work can be done from the deck verses below the piers. Zac Stacy, zachary.a.stacy2.civ@us.navy.mil 0005

4 4-Apr Attachment H and C101-C110

Referencing addendum #4 Attachment H Priced Proposal Form REV1, 1A. Bid Option #1 references work on and around Piers 11-14, 2A. Base Price references work around Piers 15-19. Attachment B Drawings dated 2/22/24 reflect the following: Base Bid - work on and around pier 11 - 14, Bid option #1 work on and around piers 15 - 19. Please clarify which scope is base price and which scope is bid option #1.

Base Price is work on and around Piers 11-14 and Bid Option #1 is work on and around Piers 15-19. They Should match what is shown on the plans. Zac Stacy, zachary.a.stacy2.civ@us.navy.mil 0005

5 4-Apr C101-C110 Referencing bid option #2 and the work along Tortuga Road, please provide the expected amount of cover for new 12" DIP water main? Unknown. Zac Stacy, zachary.a.stacy2.civ@us.navy.mil 0005

6 4-Apr C101-C110 Referencing bid option #2 and the work along Tortuga Road, please provide the current depth, cover, or profile of the existing 12" DIP water main? Unknown. Zac Stacy, zachary.a.stacy2.civ@us.navy.mil 0005

6 4-Apr C101-C110 Is there any addition information avaible for the elevations of other existing utilites that will be crossed with the 12" DIP water main? No. Zac Stacy, zachary.a.stacy2.civ@us.navy.mil 0005

7 4-Apr C101-C110

For water main installation in the asphalt areas, is it expected to backfill and pave at end of shift, or are we able to leave our trench open overnight with barriacades around it?

Follow the specifications. Make sure all safety measures are being followed. Zac Stacy, zachary.a.stacy2.civ@us.navy.mil 0005

8 4-Apr C101-C110

What is the expected final asphalt restoration requirements? Will the full width of the road need to be milled and overlayed after the trench path is patched with asphalt?

See the plans/specifications. No, just need the trench patched. Zac Stacy, zachary.a.stacy2.civ@us.navy.mil 0005

9 4-Apr C101-C110

The majority of the work required for both piers Base Bid: 11-14 and Option #1:15-19 is removing and replacing pipe within the piers, but items 1B and 2B in attachment H carry large quantities of contaminated material disposal.

Referencing attachment H: Bid Option 2 carries 54 tons of contaminated material disposal, which is a majority of where the dig, lay, bury pipe work will occur. Are those expected quantities for contaminated material disposal associated with the correct portions of work as indicated in attachment H. Yes. Zac Stacy, zachary.a.stacy2.civ@us.navy.mil 0005

10 4-Apr C101-C110 What is the expected moisture content percentage for the contaminated material? Unknown. Zac Stacy, zachary.a.stacy2.civ@us.navy.mil 0005

11 4-Apr C101-C110 What is the expected contaminant type for the contaminated material? POL and PFAS Zac Stacy, zachary.a.stacy2.civ@us.navy.mil 0005

12 4-Apr C-108 Referencing drawing C-108 the section of pipe between call out 3 and 4, is that pipe to remain? Yes. Zac Stacy, zachary.a.stacy2.civ@us.navy.mil 0005

13 4-Apr C-109 Referencing drawing C-109 what does the letter J indicate?

It appears to be some kind of underground electrical junction. Zac Stacy, zachary.a.stacy2.civ@us.navy.mil 0005

14 4-Apr C-501 Detail E1

Referencing drawing C-501, E1 - tree planting detail. Any trees or shrubs to be replaced or planted? Sheet C-109 references removal, but does not indicate any replacement. Yes. See new work keynote #8 on sheet C-109. Zac Stacy, zachary.a.stacy2.civ@us.navy.mil 0005

15 4-Apr C-101, C-105, C-107

Are all existing fences able to be removed and replaced? What is the allowed timeline to replace? What are the required security measures for any temporary fence?

Existing fence should not need to be removed and replace to remove and replace water line. If fence is absolutely required to be removed and replaced in order to remove and replace the water lines, it should be done in a timely manner that provides continious security for the facility.

Same security measures should be implemented for temporary fence. Schedule and fully coordinate and fence work with Contracting Officer and cognizant Security Officer.

Replaced fence shall be in like kind. Zac Stacy, zachary.a.stacy2.civ@us.navy.mil 0005

16 4-Apr Are there any storage areas or laydown yards avaible or designated within the base? This is to be coordinated with the construction manager. Zac Stacy, zachary.a.stacy2.civ@us.navy.mil 0005

17 4-Apr Is there a sequence of construction of Bid Option #2 to avoid putting critical facilities out of water for an extended period of time? No. Zac Stacy, zachary.a.stacy2.civ@us.navy.mil 0005

18 4-Apr C101-C110 Will any temporary water required for any portion of the project? No. Zac Stacy, zachary.a.stacy2.civ@us.navy.mil 0005

19 4-Apr C101-C104 Will an entire pier be available for pipe replacement or will we be required to work around typical operations? Will be required to work around typical operations. Zac Stacy, zachary.a.stacy2.civ@us.navy.mil 0005

20 4-Apr C101-C104 If existing pipe hanger need to be replaced, who will make that deterimination? The construction manager. Zac Stacy, zachary.a.stacy2.civ@us.navy.mil 0005

Pre-Proposal Inquiry Submission Form: N4008524R2625, ST17-0627 Replace Water Mains along West Side Waterfront

GOV'T RESPONDER

NAME, E-MAIL Amend No.

RFI

No.

Date Submitted

REFERENCE QUESTION GOVERNMENT RESPONSE

Pre-Proposal Inquiry Submission Form: N4008524R2625, ST17-0627 Replace Water Mains along West Side Waterfront

GOV'T RESPONDER

NAME, E-MAIL Amend No.

RFI

No.

Date Submitted

REFERENCE QUESTION GOVERNMENT RESPONSE

21 4-Apr C101-C104

Please provide a detail of how the pipe transitions from land on to the piers. Is there a wall sleeve or some type of penetratation between the land and the utility tunnel? This transition detail is unknown. Zac Stacy, zachary.a.stacy2.civ@us.navy.mil 0005

22 4-Apr Please provide any as-built information detailing the construction of piers 15 through 19.

See attached Pier 11 inspection report. Piers 11 through 19 are all similar. Zac Stacy, zachary.a.stacy2.civ@us.navy.mil 0005

23 4-Apr C101-C104 What are the weight restrictions for equipment on the piers?

500 p.s.f. unifrom live load, 15-ton truck crane, AASHTO HS20 Loading. If a crane is being used, submit crane type, loading, and work plan for government approval prior to starting construction. Zac Stacy, zachary.a.stacy2.civ@us.navy.mil 0005

24 4-Apr C101

Referencing to Attachment B - New Work Keynote 11. Auto- Flush HG-6.

Installing a new Auto- Flush HG-6 is depicted in the bottom left corner of the sheet. What does that connect to? To an existing fire hydrant. Zac Stacy, zachary.a.stacy2.civ@us.navy.mil 0005

25 4-Apr C101 Please provide a detail for "inline fire hydrant" Detail currently unavailable. For estimating purposes, use

1.5 times the cost of a standard fire hydrant. Zac Stacy, zachary.a.stacy2.civ@us.navy.mil 0005

26 4-Apr C101-C104 At the end of each pier 11-19, the 4" DIP water main ends with Inset-B. What is the expected transition from 4" to 2.5"? Cast iron reducing elbow. Zac Stacy, zachary.a.stacy2.civ@us.navy.mil 0005

27 4-Apr C103 Referencing drawing sheet C103, it appears that a 12" gate valve needs to be installed. It is not clearly identified as they are on other pages. Please confirm.

I do not know the location on this sheet where this valve would be required. If there is not an existing valve, then there wouldn't be a proposed one. Zac Stacy, zachary.a.stacy2.civ@us.navy.mil 0005

28 4-Apr C105 Referencing drawing sheet C105 and other drawings, for the 2" service connections what type of pipe is to be expected? It should match existing. I believe it is copper in this area. Zac Stacy, zachary.a.stacy2.civ@us.navy.mil 0005

29 4/4/2024

1. The Price Schedule items 1B, 2B, & 3B seem to be in conflict with specification section 02 61 13, Excavation & Handling of Contaminated Material. The Price Schedule indicates payment is for testing and disposal of contaminated material.

However, section 02 61 13, 1.1.2, Payment, indicates that separate payment will be made for 3 distinct operations:

compaction, & geotechnical testing C. 1.1.2.3 Stockpiling; grading, preparation, handling, placement, maintenance, removal, treatment, disposal, and liner materials. Please provide clarification.

Use what is mentioned in the price schedule. They things mentioned in the specifications will need to be done in order to do what is in the price schedule. Excavation, backfill, compaction, etc. will have to be done whether the soil is contaminated for now. Zac Stacy, zachary.a.stacy2.civ@us.navy.mil 0005

30 4/4/2024

1. Specification section 02 61 13, 3.4 states that the excavated soil is to be analyzed for POL & PFAS. At what frequency will the tests be required? One sample per every 250 Cubic Yards. Zac Stacy, zachary.a.stacy2.civ@us.navy.mil 0005

31 4/4/2024 9 331100 2.1.1.3

Specifications call for the steel piping to be zinc-coated, as well as cleaned of foreign material by wire brush and solvent cleaning. After celaning it states to then to coat with one coat of coal-tar primer and two coats of coal-tar enamel per AWWA C203. Please confirm the steel pipe coating requirements. Please follow the specifications. Zac Stacy, zachary.a.stacy2.civ@us.navy.mil 0005

32 4/4/2024

Drawing C-102, note 8 states to connect the 12" ductile iron main to a 2" line.

Please confirm the materials of construction for the existing 2" line. It should match existing. It is believed to be copper. Zac Stacy, zachary.a.stacy2.civ@us.navy.mil 0005

33 4/4/2024

During the site visit access was not provided to the underside of the pier and the concrete blocks that provide access to the piping under the pier were all in place therefore you could not view the piping system from above or below the pier. Can as-builts and pictures of the piping system under the pier with all pipe supports and other construction details be provided? This information is necessary to provide accurate pricing.

See attached Pier 11 inspection report. Piers 11 through 19 are all similar. Zac Stacy, zachary.a.stacy2.civ@us.navy.mil 0005

34 4/4/2024 Can the govt remove some of the access concrete blocks and provide pictures of the piping system and piping support system under the pier? No. Zac Stacy, zachary.a.stacy2.civ@us.navy.mil 0005

35 4/4/2024 C-106, 108, 109 & 110

New work keynote #11, #8, #9 & 10, and #14 respectively, states to remove and replace concrete curb and gutter or just curb. No detail is referred to or provided. Please provide construction details for the replacement of the concrete curb and gutter Use VDOT CG-2 or CG-6. Should match existing. Zac Stacy, zachary.a.stacy2.civ@us.navy.mil 0005

Pre-Proposal Inquiry Submission Form: N4008524R2625, ST17-0627 Replace Water Mains along West Side Waterfront

GOV'T RESPONDER

NAME, E-MAIL Amend No.

RFI

No.

Date Submitted

REFERENCE QUESTION GOVERNMENT RESPONSE

36 4/4/2024 026113 1.3 & 3

These paras states that the work consists of excavation to remove and replace existing water mains, etc. and that the work takes place in an active POL contamination area. It further states that prior to removal, examine the excavation for evidence of contamination. The soil shall be analyzed for POL contamination and PFAS wastes per the appropriate method determined by NAVFAC hazardous waste and water/wastewater media managers. The results shall be shared and coordinated with NAVFAC hazardous waste and water/wastewater media managers. Since no HazMat survery has been included with the RFP docments and the paras state we are to test prior to excavation the quantities and exact make up of what the soil is contaminated with are unknown prior to the preconstruction haz mat survey/testing is performed after award. Please confirm that any disposal offsite of any contaminated soils will be handled as a changed condition post award when quantities and hazmat makeup can be determined and that a modification to the contract will be issued.

For estimating purposes, use the quantities mentioned in the price schedule. Zac Stacy, zachary.a.stacy2.civ@us.navy.mil 0005

37 4/4/2024 Will the contractor be required to obtain and/or pay for any VADEQ, VPDES or other permits? Follow the specifications on required permits. Zac Stacy, zachary.a.stacy2.civ@us.navy.mil 0005

38 4/4/2024 C-101

General Sheet Note #4 states all existing pipe hangers are to be reused unless there is concrete spalling or corrosion. Can the govt provide construction details of the existing hangers and an "assumed quanty" for bid purposes since there is no way to quantify this pre-bid?

The quantity is unknown as well as the detail. For estimating purposes, assume 2 per pier needs replacing. Zac Stacy, zachary.a.stacy2.civ@us.navy.mil 0005

39 4/4/2024 C-109

New work keynote #11 states to replace concrete sidewalk and match existing. Please provide existing concrete sidewalk details, thickness, reinf, etc

Existing sidewalk detail unknown. Match existing. Assume 4 inch depth. Zac Stacy, zachary.a.stacy2.civ@us.navy.mil 0005

PPI Submittal