LINC PRFI 06.pdf

` 815CM3041 Long Island National Cemetery Reno and Improvement Construction Project, responses to PRFI#05

1. Please share information regarding well pump supply intake set depth. We had received inquiries from multiple specified manufacturers on well pump set depth. Contractor has reviewed the bid documents and has not been able to locate any information on the well pump set depth. This information is needed as the intake of the water needs to be set below the “driest” level of the water table.

Referencing the various boring hole reports (Reference: “APPENDIX I ‐ Geotechnical Report”) show boring depth of 10’‐0”. It does not call out current water table. The previous nearby well locations

(ref: “APPENDIX I ‐ Geotechnical Report”) were dated from 1985, which is close to over (40) ago.

These reference offers very outdated information. The set depth also impacts cost of the actual well pump equipment.

The pump should be placed 20 feet above the cased section of the well. The base of the casing has been estimated to be 350 feet below ground surface, although it is important to note that this is an estimate and the actual depth will be dictated by site-specific conditions. The water level within the existing well is unknown to ECS but is estimated to be 30-50 feet below ground surface.

2. Refer to detail 9/LS‐402, the detail of guide rail is given but it is not shown on the drawings. Please clarify the extent of guide rail or provide quantity for bidding purpose.

Guide Rail is located at the new well head/control spool enclosure. Refer to LS-310.

3. Please confirm the below mentioned queries regarding water well pump shown on drawing I‐101:

a‐ Will water well pump be an oil lube pump? If yes, then what will be shaft size, tube size, right or left handed thread?

Not oil lubricated. Water lubricated, as specified and drawn.

b‐ Please confirm threaded column?

Contractor’s discretion.

c‐ Does the bowl assembly and discharge head need to be coated? If so what coating, will it need to be NSF certified?

no coating required d‐ What will be the column setting or total pump length?

The pump will likely be placed approximately 20 feet above the base of the casing. The actual depth to the base of the casing will be dependent on site-specific conditions, as determined through the collection of cuttings samples and borehole geophysical logging. The casing is presently estimated to be 350’.

4. Refer to drawing AE‐621, keynote 01 says to provide new ship lap siding on new framing above interior walls, beams, and columns to underside of existing ceiling. Please provide technical specification for shiplap siding.

Siding to match what is existing in profile, material, and finish.

5. Please confirm the below mentioned queries regarding irrigation well:

a‐ What is specific capacity of well?

The specific capacity of the existing well is unknown, as testing has not been performed and inadequate operational information is available to make this determination.

b‐ Well location may need to be shifted for adequate setup of rig and equipment. Please clarify?

The well should be installed at the general area indicated on bidding documents. The actual location within this general area should be coordinated between the COR and the contractor.

c‐ Please confirm if three observation wells into the same aquifer as the new irrigation well are required (as per Attachment 2)?

A response from DEC to the permitting application has not yet been received. It is expected that that the response will include minimum observation requirements for the pumping test. It is assumed that it will be necessary to monitor water levels in the nearby existing irrigation well but that it will not be necessary to install additional observation wells.

6. Refer to drawing AE‐805, furniture schedule shows storage shelving of HCU‐X models from “EDSEAL” that are no longer in production as per specified vendor. Please provide some alternate models for these storage shelving?

Consider the specified products basis-of-design. Similar products that may be considered include

Hallowell’s Extra Heavy Duty Solid Steel, Stand-alone, Boltless, 5-Shelf line or others. Match dimensions, shelf quantity, minimum loading, or others.

7. Refer to drawing LS‐409, detail 4 shows attic stock for sign posts. Please clarify if extra helical piles are required for these posts?

No attic stock required for helical piles.

8. Refer to drawing LS‐410, tagged notes show “Wet‐Cast Stone” Masonry Base for sign posts, whereas these are being shown as “Cast‐In‐Place” Reinforced Concrete Base. Please confirm if the base is cast‐ in‐place reinforced concrete base?

Sign bases throughout project are designed as a steel reinforced wet cast stone units to be mechanically anchored to helical piles with patched anchor holes. See spec section 04 72 00. Shop drawings of signage assemblies that include piles, anchors, cast stone base units, sign posts, and signs will be required for VA NCA review.

9. Refer to drawings CD‐101 & CP‐201, the “Asphalt Pavement” layouts in demolition and construction drawings do not match/ align with each other at many areas. Please clarify.

Demo is for existing extent of pavement, New paving area is substantially larger.

10. Refer to drawings LS‐X drawings, note 1 says to provide construction fencing per 01 00 02 & 3/LS‐401, but extent of fence is not shown. Please clarify the extent or provide quantity for bidding purpose.

Temporarily block access to all roads leading to an area of construction with a construction fence that crosses the road while those areas are under construction, see suggested phasing plans SK01 thru

SK04 included with solicitation for bid. Any excavated areas to be left overnight are to be enclosed with a 5’ high plastic fence attached to posts to ensure visitor safety. Surround committal shelters with construction fence during construction at those locations, surround public rest room building with construction fence during construction operations there. Surround areas of work at columbarium with construction fence during phases of construction there, phasing for columbarium work to be coordinated with VA NCA stakeholders. Work at public information center the parking areas and cortege lanes shall be surrounded with a construction fence.

11. Refer to Drawing No.ET‐311 there is OS4 Multimode fiber between Maintenance Building & Public

Restroom Building as per riser Diagram. Can we use OS2 Single Mode fiber or 12 Strand Multi Mode

OM2 Plenum Fiber or OM4 Multimode cable instead of OS4 Multimode fiber. Please advise.

[Nick Esposito, Charlotte Engineers] OM4 multimode cable is acceptable, per VA OIT

Design Manual Section 4.4.4.

12. Refer to Drawing No. E‐010 & ET‐311 there is 40 PVC Direct Buried underground between

Maintenance Building & Public Restroom Building but there is also trees. Please advise on it?

[Nick Esposito, Charlotte Engineers] Route underground conduit as straight as possible without disrupting the existing trees. Trenching is preferred to be in grassy area but if an impact to the trees is unavoidable, then routing shall be adjusted to be within the nearby paved parking areas. Refer to requirements of 01 56 39 for excavation and other work within Tree Protection Zones. Excavation by supersonic air tool or hand, or use of directional boring are acceptable practices.

13. Refer to Drawing No.ET‐311 what is the depth of excavation for underground cabling Between

Maintenance Building & Public Restroom Building. Please advise.

[Nick Esposito, Charlotte Engineers] Interbuilding telecommunications shall be run in conduit within concrete encased duct bank and be minimum 24” deep, per VA OIT, Electrical, PSRDM, and TSTS Design Manuals.

14. Refer to Drawing No. I‐101 what is the depth of excavation for underground raceways between Pump

House to Water Well Pump & Pump House to Water Well Control Spool. Please advise.

Refer to Section 26 05 41 for materials and execution associated with Direct-Burial Ducts.

15. Refer to Drawing No. EP‐510 what is the depth of excavation for New Duct Bank Between Utility

Transformer & CT/Meter. Please advise.

[Nick Esposito, Charlotte Engineers] Electric service duct bank shall be minimum 24” deep, per

PSEG Long Island Redbook.

16. Refer to drawing LS‐305, detail 8A shows to saw cut & remove existing concrete paving for monument installation, whereas, as per drawing LS‐201 monuments are on landscaped areas. Please clarify if concrete paving is to be removed & replaced as per above mentioned detail.

There is existing concrete paving at that particular monument that needs to be removed and replaced for new monument installation.

17. Refer to specification section. 01 00 02, all Testing Laboratory services will be retained and paid for by the Contractor (Spec. Sec. 01 45 29), but the number/ quantity of tests are not shown. Please provide number/ quantity of tests for bidding purpose.

Testing requirements are indicated in 01 45 29. Additional requirements may be found in specific specification sections.

18. Refer to specification section. 01 00 02, the General Contractor shall provide unarmed guards at the project site after construction hours when theft or vandalism warrants. Please provide quantity & detail of guards for bidding purpose.

Using security guard after hours to protect contractor materials and tools is not required by the

Federal Government for this project and is contractor responsibility if deemed necessary by the contractor.

19. Refer to specification section 02 83 33.13, paragraph # 1.1.A says to abate lead based paint from below mentioned items, please provide the quantity for bidding purpose.

Contractors are welcome to visit the site prior to bid opening to do their own take-offs, one can make arrangements to do so with cemetery director or assistant director.

20. Refer to “SUMMARY SCOPE ITEM 01” (distributed during walkthrough), note 1.1.1. (pointer 2) says to completely replace ceiling of committal shelters, whereas, entire ceiling replacement is not shown on drawings. Please clarify?

If not shown on bid drawings/specifications, all bid documents posted in sam.gov, it is not required.

21. Refer to “SUMMARY SCOPE ITEM 01” (distributed during walkthrough), note 1.1.1. (pointer 5) says to reconstruct overhead beams and spaces to deny bird nesting, whereas, this work is not shown on contract drawings. Please clarify?

See drawing details, they show a wall assembly infill added above beams.

22. Refer to “SUMMARY SCOPE ITEM 01” (distributed during walkthrough), note 1.1.1. (pointer 3) says to clean paving, repair if and as required, whereas, this work is not shown on contract drawings. Please clarify the extent or provide quantity of repair for bidding purpose?

If not shown on bid drawings/specifications, all bid documents posted in sam.gov, it is not required.

23. Refer to “SUMMARY SCOPE ITEM 02” (distributed during walkthrough), note 1.2.1. (pointer 10) says to add gravesite locator kiosk, whereas, this work is not shown on contract drawings. Please clarify?

See sheet AE-311, keynote 8 and detail 3 on sheet AE-312. Gravesite locator Kiosk is government furnished, contractor installed.

24. Refer to “SUMMARY SCOPE ITEM 02” (distributed during walkthrough), note 1.2.1. (pointer 11) shows septic tank in building, whereas, this work is not shown on contract drawings. Please clarify?

Existing septic system noted for information only, no work on actual septic system required.

25. Refer to “SUMMARY SCOPE ITEM 03” (distributed during walkthrough), note 1.3.1. (pointer 2) says to do minor sidewalk repairs, whereas, this work is not shown on contract drawings. Please clarify the extent or provide quantity for bidding purpose?

Note legend on LS sheets, circumscribed symbol 1, Where this symbol is shown on the LS plans an estimated square footage of concrete flatwork replacement is next to the plan symbol. I only see one location but there may be more.

26. Refer to “SUMMARY SCOPE ITEM 03” (distributed during walkthrough), note 1.3.1. (pointer 3) says to add two benches per wall, both sides of wall and required concrete bench pads., whereas, this work is not shown on contract drawings. Please clarify?

See sheet LS-303 plan details 1,4,6, and detail 5/LS-402

27. Refer to “SUMMARY SCOPE ITEM 05” (distributed during walkthrough), note 1.5.2. (pointer 2) says to

Replace (3) 12" gates, whereas, this work is not shown on contract drawings. Please clarify?

This refers to gate valves, see sheet 1-501 detail 4.

28. Refer to “SUMMARY SCOPE ITEM 10” (distributed during walkthrough), note 1.10.1. (pointer 4) says to provide sanitary sewer hook up to septic system, whereas, this work is not shown on contract drawings. Please clarify?

See sheet PP-311 key note 1.

29. Refer to “SUMMARY SCOPE ITEM 14” (distributed during walkthrough), note 1.14.1 (pointer 1 & 2) say to jet/vacuum all curb inlets, pipes, and infiltration vaults and jully rejuvenate and clean 12 of the infiltration vaults, whereas, this work is not shown on contract drawings. Please clarify?

300 – 3’x3’ inlet structures to be jetted and vacuumed with a total of 100 cubic yards of material to be disposed of. Material can be dumped in spoils area at the cemetery.

Debris material to be disposed of shall be measured and calculated in place prior to removal from storm structure.

300 – 8’ diameter infiltration vaults to be jetted and vacuumed with a total of 280 cubic yards of material to be disposed of. Material can be dumped in spoils area at the cemetery. Debris material to be disposed of shall be measured and calculated in place prior to removal from storm structure.

50 – 4’ diameter man holes to be jetted and vacuumed with a total of 25 cubic yards of material to be disposed of. Material can be dumped in spoils area at the cemetery.

Debris material to be disposed of shall be measured and calculated in place prior to removal from storm structure.

2,400 total linear feet of storm pipe to be jetted.

Contractor is to assume the quantities above for their construction cost proposal.

Proposal shall clearly indicate unit costs for this work which will include general contractor’s costs/overhead and profit markups. Quantities to be verified by contractor during construction operations, contract modifications may be required based on actual work required/completed.

30. Could you please confirm whether the project utilizes a Campus BMS on site or if each building has its own local controls system in place?

There is no campus BMS, each building has its own local HVAC controls.

31. We have not come across any specifications indicating the requirement for acoustical lining in any of the projects. Could you kindly inform us if such lining has been implemented?

Acoustic lining is not required for any duct work, insulation wrap is per specs.