Atch(1)_Revised_Government_Response.pdf

SOLICITATION NO. N4008418B5500

PROJECT TITLE/LOCATION: PHASE 2 MONZEN DOMESTIC HOT AND COLD WATER REPAIR AT U.S. MCAS IWAKUNI, JAPAN (ID#3432696)

GOVERNMENT PRE‐BID INQUIRY FORM Amendment 0002 Attachment (1)

Page Section Para.

1 11-Jun-18 - M06,M-07 -

The existing pipe trenches for exterior equipment at the east side of Mechanical Rooms #925 and #927 are not indicated on the drawing M-06 and M-07, and the new pipe installation will interfere with the trenches. We would like to change the piping route to inside the mechanical room.

The trenches on the East side were installed during a project at the in 2017 “Repair Domestic Hot Water " project for Bldgs. #925 and # 927. The depth of the HW piping in this project should allow for installation in existing location under the existing trenches. Means and methods shall be determined by contractor if shoring is needed to support existing trenches.

2 11-Jun-18 - M-06 -

The existing pipe trench for exterior equipment at the west side of Mechanical Room #926 is not indicated on the drawing M-06, and the new pipe installation will interfere with the trench. We would like to change the piping route to inside the mechanical room.

The trenches on the East side were installed during a project at the in 2017 “Repair Domestic Hot Water " project for Bldgs. #926. The depth of the HW piping in this project should allow for installation in existing location under the existing trenches. Means and methods shall be determined by contractor if shoring is needed to support existing trenches.

3 11-Jun-18 3 01 14 00 M-01 1.3.4 e

The spec and drawing states that temporary parking lot (70 parking stalls) for residents are required. Will the removal of trees and obstacles, and placing crashed stones on the access road from road way to the parking lot be included in the contract? If so, please provide the specification for the temporary work.

The proposed location of the temporary parking lot will be revised. Revised drawing M-01 is provided with this amendment.

Question No.

Date Received

REFERENCE QUESTION GOVERNMENT RESPONSE

PROJECT TITLE/LOCATION: PHASE 2 MONZEN DOMESTIC HOT AND COLD WATER REPAIR AT U.S. MCAS IWAKUNI, JAPAN (ID#3432696)

GOVERNMENT PRE‐BID INQUIRY FORM Amendment 0002 Attachment (1)

Page Section Para.

Question

No.

Date

Received

REFERENCE QUESTION GOVERNMENT RESPONSE

4 11-Jun-18 3 01 14 00 1.3.4 d

The spec states that the contractor shall provide the temporary lighting fixture at the temporary rear access way for residents.

Please confirm that the power source for the lighting fixture will be provided from each housing unit.

Power can be supplied from housing units.

5 11-Jun-18 3 01 14 00 1.3.4 d

It is stated that "Contractor shall provide and install a lock (operate from outside) to one rear sliding window at each housing unit." We need to install thumb-turn cylinder to meet the requirement, however the lock cannot be installed on the existing rear sliding window.

A thum turn cylinder is not suitable. Please provide locks with removable keys which are fitting for sliding windows.

6 11-Jun-18 - M-27 -

We would like to know if there are more areas that require shoring/sheet piling other than the area showing on the drawing M-27. Please provide information regarding column diagram (soil boring log) and water level of the construction site so we can prepare sheet piling plan.

SHEET PILING PLAN (REFERENCE) on drawing M-27 is reference only.

The contractor is responsible for providing adequate protective system (shoring/sheet piling) based on actual site condition in accordance with Spec. Section 31 23

00.00 20 Para 3.2 and EM-385-1-1

PROJECT TITLE/LOCATION: PHASE 2 MONZEN DOMESTIC HOT AND COLD WATER REPAIR AT U.S. MCAS IWAKUNI, JAPAN (ID#3432696)

GOVERNMENT PRE‐BID INQUIRY FORM Amendment 0002 Attachment (1)

Page Section Para.

Question

No.

Date

Received

REFERENCE QUESTION GOVERNMENT RESPONSE

7 11-Jun-18 - M-05 -

The drawing M-05 indicates that the existing gate valve which is installed on the concrete slab with floor tiles to be reused. Would it be acceptable to remove the existing pipe up to the slab and reuse the pipe and valve on the slab?

Yes.

8 11-Jun-18 - 33 11 00 33 61 14

3.1.2 3.5

The spec states that "Disinfect new hot domestic water piping in accordance with AWWA C651." Will the disinfection procedure be the same as the one for the cold water pipe?

Yes.

9 11-Jun-18 - - -

We respectfully request that the government will consider extending the proposal due date for at least two weeks from the date we receive the response to our inquiries. We need time to reconsider/recalculate the cost proposal depend on the responses.

Bid Opening Date was extended by Amendment 0001.

10 11-Jun-18 - G-03 -

The drawing states that " Temporary removed tree shall be reinstalled at the site where directed by the MHD (Housing Division) officer." However, It will be difficult to reinstall large trees. Also, the trees cannot be reinstalled if they were removed during summer time. Would it be acceptable to remove trees and install new, same type of trees?

Yes, you may plant new one instead of relocation.

PROJECT TITLE/LOCATION: PHASE 2 MONZEN DOMESTIC HOT AND COLD WATER REPAIR AT U.S. MCAS IWAKUNI, JAPAN (ID#3432696)

GOVERNMENT PRE‐BID INQUIRY FORM Amendment 0002 Attachment (1)

Page Section Para.

Question

No.

Date

Received

REFERENCE QUESTION GOVERNMENT RESPONSE

11 11-Jun-18 G-02

The SCOPE OF WORK on the drawing G- 02 states that " Temporary remove existing parking light poles (which interfere with pipe removal/installation), retain them and reinstall.", however, the drawing of the existing underground conduits for the light poles is not attached. Please provide the drawing so we can verify the affected area for this work.

Please see the as-built drawings from 'attachment-33' to 'attachment-44' issued with the solicitation.

12 11-Jun-18 M-01

The existing trash can enclosures will be temporarily blocked during construction.

Will we be required to install temporary enclosures? If so, please provide the specification and number of enclosures.

Temporary concrete pad will be provided for trash containers. Revised drawing M- 01 is provided with this amendment.

13 11-Jun-18 3 33 61 14 2.1.2.b

The spec states that "Steel pipe conduit:

JIS G 3444. Steel pipe conduit shall be used under parking lots and roads."

Could you provide us the specification regarding surface finish of steel pipe conduit? Typical finish is asphalt coating or polyethylene coating. Please advise.

The coating is asphalt protective coating.

This has been added to the specification indicating that outer surface of steel pipe shall be coated with asphalt protective coating (t=4.5mm) in accordance with JIS G 3491 after blasting.

PROJECT TITLE/LOCATION: PHASE 2 MONZEN DOMESTIC HOT AND COLD WATER REPAIR AT U.S. MCAS IWAKUNI, JAPAN (ID#3432696)

GOVERNMENT PRE‐BID INQUIRY FORM Amendment 0002 Attachment (1)

Page Section Para.

Question

No.

Date

Received

REFERENCE QUESTION GOVERNMENT RESPONSE

14 11-Jun-18 3 01 45 00.00

20 1.5.1.2

One of the qualifications for the QC Manager is to have both 1st Class Civil Works Execution Managing Engineer (1Kyu, Doboku sekou kanri gishi) and 1st Class Plumbing Works Execution Managing Engineer (1 kyu, Kankouji sekou kanri gishi) licenses. However, there aren't many people who has both licenses, and it will be very difficult to provide a QC Manager who qualifies this requirement.

Could you please change the requirement to accept the QC Manager who obtains one of the two licenses?

The specification states, "The individual must have the Japanese license of Construction Quality Management Technician and the following licenses applicable to the work type of the project."

This means that the QC shall have one of the following licenses ; "1st Class Civil Works Execution Managing Engineer" or "1st Class Plumbing Works Execution Managing Engineer" .