Attachment 10 - Tech Questions Responses Sheridan EHRM TASS 21-703.docx

TECHNICAL QUESTIONS AND

01 45 29. Please confirm the government requires batch plant testing etcetera for pouring a porch, sidewalk, and pole bases. Would break tests be sufficient?

Yes, break tests will be sufficient. Follow 01 45 29.

01 45 00. Please confirm the government desires 10 engineers on site to monitor the various trades.

A single person can cover more than one area provided that the single person is qualified as referenced in the table on 01 45 00-7. As part of your QM/QA SUBMITTAL you need address how you will do QM/QA in the most efficient and qualified manner. Design quality assurance on behalf of the VA will be the A/E designer of record. The Contractor’s QC personnel and the TAB will be a certified company and persons employed by the Contractor, accepted by the VA and designer of record.

01 45 29 and S601 reference extensive testing procedures for structural steel. Are those intended to apply in full to lintels, or to welds (factory or field) on the wheelchair lift, and to hand rails?

Suggest something along these lines or develop the answer further for clarity – If contractor is using a commercially available component, special inspections are not required. If contractor is using custom – or “prefabricated” offsite components to incorporate into the end product anticipate special inspections will be required for each noncommercial component. Special Inspections and tests apply only to the extent listed in the Schedule and applicable to the specific work performed on site. Work performed off-site by qualified and approved fabricators (with verifiable QC programs) does not need additional inspection.

01 35 26 1.3 Please confirm TB tests will be required

Suggested response – Tuberculosis Testing is not required.

01 57 19. Demolishing the existing concrete porch, sidewalks, etc., will create a lot of noise that can’t necessarily be abated. Please confirm that we will only be able to demo 12 minutes per hour if jackhammers and concrete saws exceed 70dB at 50’.

This paragraph is removed and replaced with quiet hours on station where no loud noise is allowed are from 5 pm to 7:30 am.

Refer to the Attached Addendum

01 00 00 1.31 Will a professional photographer be required for construction photos?

No, a professional photographer is not required for construction photos. It doesn’t need to be a professional as called out but a complete set does need to be taken even of enclosed spaces which cannot be seen in from a general room picture like but not only closets, attic, and above drop ceiling.

Refer to 01 00 00 1.31.B.1 for digital image requirements.

01 45 29 3.3 Caissons, no spec is provided, however plans indicate drilled piers.

Comply with Drawings, specification Section 033000 Cast-In-Place Concrete, and Special Inspection and Tests of Soils requirements.

Part 3.3 Caisson Foundations has been provided in Specification 01 45 29.

01 45 29 3.18 The number of tests seems excessive in relation the relatively small scope of this project. (e.g. 10 tests each for: reinforcing steel, concrete, earthwork, etc.) Can theses tests be reduced, and to what frequency?

Provide Test Type counts as follows: Provide not less than 1 applicable test for each specified criteria, except as follows. For earthwork, provide 1 test for compaction for each 8-inch lift of backfill at each location. For aggregate base provide not less than 1 test for each specified criteria for each aggregate type. For concrete provide not less than 1 test for each specified criteria for each batch or ready mix trip ticket. Tests for reinforcing steel are not required.

Testing requirements have been updated to better align with the project size.

02 82 11 Please provide the asbestos survey report.

See attached (Amendment 0003 Attachment 09) for available station data. No other data is currently available. Notify the CO of any differing site conditions during the performance of the contract for resolution of any suspicious materials encountered prior to proceeding with affiliated work.

02 82 11 paragraph b. there are no asbestos quantities shown. Please quantify so pricing may be established.

See question 10.

Building 24: Per the asbestos report, dated 07 July 2015, there is approximately 24 sf of 9”x9” floor tile (dark green/grey) and mastic in the basement open area . There are also transite panels on the exterior that will not be disturbed as part of this project.

Building 32: Per the same asbestos report there is approximately 108 sf of 9”x9” floor tile and mastic in the restrooms, 100 sf of wallboard/taping material and 14 lf of black baseboard mastic in the entry vestibule, and 252 sf of felt paper on the wood floor under the carpet in the large office 101.all in same room, several rooms or throughout the building?.

02 82 11 Please show asbestos quantities on drawings to establish area of performance for abatement.

See question 11

02 82 13 paragraph b.2 Please provide asbestos quantities

See question 11

23 08 00 paragraph 1.2 references spec section 01 91 00 General commissioning requirements. Please provide this spec section.

This project does not require commissioning.

Section 23 08 00 should have been removed along with 01 91 00. Refer to attached revised Specification Table of Contents. Conformed specifications to be provided.

Sheet AD 111-113 General Notes: as there is no “Not in Scope” indicated on plans, are we to remove all flooring (Note B) Throughout the building?

Reference Sheet AD112 and AD113, Note X (B?), Telecom Room 24-109 on AD112 and Telecom Room 32-104 on AD113 are not in scope. Refer to legend on sheet xx for “Not In Scope” hatch.

Sheet AD 111,112 General Notes: as there is no “Not in Scope” indicated on plans, is all window trim to be removed throughout the building?

See question 15

Sheet SB-101 Note 14, Please confirm that a 3” thick slab is required. It will be difficult to meet ACI requirements at that thickness with reinforcing.

A 3-inch, minimum, slab thickness is required for the slab-on-grade, matching the existing construction. Install the required WWF at mid-depth of the slab, not more than 1-1/2” below the top surface.

Sheet SB 101 Note 13, shows an 18” diameter pier while CS 101 shows a 16” pier. Which is correct?

Provide 18-inch diameter piers (per F3/CS502). Revised CS101 attached.

CS 502 Detail F3. In reviewing SB101 and CS 101 there is no pier depth indicated. What depth is required?

Exterior piers are indicated to be 6-feet depth minimum (per F3/CS502). The piers must extend not less than 3-feet below adjacent grade.

CS 501 Detail C1, What is the material located directly under the concrete spread footer?

Provide 6-inch compacted aggregate base or 6-inch scarified and compacted subgrade.

CS 502 Detail F8, will precast light pole bases be allowed?

Yes as long as requested substitution meet size rebar, conduit and compaction to ASTM standards for stability.

AE 122 The demo plans AD111-113 do not indicate any ceiling demo, however plan sheets AE 121-123 show new ceilings, are we to leave existing ceilings in place?

Yes. New ceilings are suspended below the existing ceilings. Leave existing ceilings with minimal damage for historical reasons. Refer to Attachment 12 for guidance.

General: Will furniture be removed by the government prior to the GC Starting work?

Yes

General: Will a “Winter exclusion period be in place for the exterior work?

No this project is 259 days and if awarded in September that gives 1-1.5 months this fall and 1-2 months next spring for outside work. Please plan accordingly.

01 81 00 Sustainable Construction Requirements. Will there be a be a need for a 3rd party sustainability consultant?

If you are going for a sustainable certification as a federal contractor then yes but if not need to follow recommendations for sustainable work proven by submittals and daily logs.

08 71 13 Automatic Door Openers. There are non called for on the door details and schedule in sheet AE611. Can this spec section be removed?

Specification will remain. If there are none called out in the plans and specs, then you will not use it.

CS 501 Detail F6. Please provide detail and spec for the parking bumper blocks shown.

Provide a Precast Concrete parking block (6”x6”x72”), with (2) #4 rebar the entire length, 4500 psi concrete. Anchor to parking lot with (2) sections of #4 Rebar, 12” minimum length. Cutsheet is not to be interpreted to identify a requirement for a particular brand name – contractor is permitted to submit on any suitable precast concrete parking block of similar dimensions.

CS 501 Detail F7 Indicates handrail to match ramps on existing building (see architectural) there is no handrail details on the Architectural, please provide details and spec.

To clarify detail C7 on sheet CS501 addresses handrails.

Refer to Specification 05 50 00 for material and assembly requirements.

E 001 Lighting General Note 1. May the 6’ long flexible metal conduit be MC or AC?

No cable assemblies allowed, FMC must be used.

ES 101 are A. Transformers TF2 and TF-36 “feed through” transformers, B. will removing them deenergize other transformers, C. can they be disconnected in a local sectionalizing cabinet?

A. No B. No C. Yes. Coordinate with VA for cabinet location.

ES 101 are existing 12,470 Feeds to be reused?

Yes. Perform insulation resistance test assuming conductors pass test they can be reused. Refer to Specification 26 05 13.

EP 601 B6 are conductors feeding buildings 34, 36, 83, 55, 102, 103 to be replaced? If so can you provide lengths?

34) No

36) No

83) No

55) No

102) No

103) No

EP 601 can the existing transformer ground rods be reused?

No.

ET 114 How shall the electric strike and request to exit devices be wired?

Request to exit shall release electric strike. Coordinate with device manufacturer(s) for interconnection.

F 001 Please provide make and model of existing fire alarm panels.

B24 is notifier 320 and B32 has none so will need one installed 320 model

28 31 00 Specifications require horn/strobes, but the drawings require speaker/strobes. Which would the government like?

,horn and strobes in both buildings

The existing fire alarm panels are not connected to the campus’ ONYX system (Notifier main fire alarm panel) and would need to be separately monitored. Would the government like the 2 buildings connected to the existing campus system, or do they intend to monitor them separately?

B 234 Notifier does connect to B5 main fire computer and will need to be reprogramed once complete into this main computer by the contractor. B32 will need to use one pair of existing fiber to connect this also back to B5 main fire computer.

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