Atch (7) 1624524_Pre-Bid Inquiry Response_21B6500_Amend 0004.pdf

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Maintenance Dredging Ph-2, India Basin at the CFAS, Japan
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N4008421B6500
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This document contains responses to pre-bid questions regarding a federal solicitation for maintenance dredging work at India Basin in Sasebo, Japan. The solicitation is issued by the Naval Facilities Engineering Command on behalf of the Department of the Navy for maintenance dredging of Phase 2 areas at India Basin at the Commander, Fleet Activities Sasebo facility. The pre-bid questions and answers clarify requirements around dredging depths and boundaries, environmental permitting, equipment usage, scheduling constraints including an exclusionary period from April to October, and provide additional details on survey and reporting requirements. Pricing will be on a firm fixed price basis and the performance period is 630 calendar days from award.

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Attachment (6)_Amend 0004

PRE PROPOSAL INQUIRY FORM

IFB No.: N4008421B6500 Project Title: Maintenance Dredging PH-2, India Basin at the CFAS, Japan (eP# 1624524)

Question No.

Reference (Sect/Para/Page)

QUESTION GOVERNMENT RESPONSE

RFP Package;

Attachment(3)

Atc( (3)_1624524

Electromagnetic & Hydrographic Equipment:

The RFP package included attachment 3 which lists very detailed

(to include manufacturer name and model number) information on equipment which has been approved for use. Can the Government clarify if the exact equipment listed must be used, or if bidders are allowed to use equipment from other manufacturer's which perform similarly to the equipment specified by the Government?

The Electromagnetic and Hydrographic Equipment to be used by the contractor awarded this requirement must be approved by the

Naval Ordnance Safety and Security Activity (NOSSA). The awarded contractor is NOT required to use this exact equipment.

However, the list of equipment in Attachment (3) was used during Phase I Dredging. Attachment (3) is included to inform all bidders of the previously used equipment.

If the awarded contractor intends to use different equipment, then it will require NOSSA approval prior to being used. It does not need to be approved prior to award.

Sec 35 20

23.00 33; Para.

3.2; Page 5

Sediment Disposal:

The cost for sediment disposal will be based on assumed quantities of contaminants listed in the Chugai Technos Test

Report which starts from PDF page 217 of 269 of

Atch(1)_1624524-SPEC. In the event contaminant(s) not listed in the Chugai Technos Test Report are encountered will the contaminant(s) be considered a "Changed Conditions" eligible for compensation?

Changes to the specifications will be executed in accordance with 52.243-4 Changes.

Changes in quantities will be executed in accordance with

52.211-18 Variation in Estimated Quantity. See para “Variation in Estimated Quantity” in General Information in the IFB.

Dwg C-001;

General

Description of

Work #2

Anomalies:

The quantity of 150 metal anomalies is listed in the RFP package;

in the event that quantity turns out to be higher will that be treated as an "unforeseen condition" eligible for compensation?

Changes to the specifications will be executed in accordance with 52.243-4 Changes.

Changes in quantities will be executed in accordance with

52.211-18 Variation in Estimated Quantity. See para “Variation in Estimated Quantity” in General Information in the IFB.

Sec 01 11

00.00 33; Para.

1.4.1.2; Page 2

Exclusionary Period:

During the period of "work stoppage" between April and October, is it possible for the Contractor to conduct non-dredging related work such as sampling of sediment, magnetic surveying, underwater surveying and depth and shallow surveying?

Yes, it is possible.

Sec 01 11

00.00 33; Para.

1.4.1; Page 2

Period of Performance:

On an assumed award timeframe of early November 2021 (90 days after the bid date) the Contractor would have until the end of

March 2022 (about 4.5 months) to complete all contract specified pre-construction safety & environmental documentation, coordinate permits with various host nation authorities, coordinate and finalize disposal venues for dredged materials, and conduct all required pre-dredging surveys. Actual dredging would not start until December 1, 2022 after the April to November exclusionary period has passed. This means the Contractor will have about 121 calendar days (until Mar 31, 2023) to complete all of the dredging.

Once the anticipated weather delay days (01 32 16.00 33, para.

1.3.1.1), weekends and US holidays (01 14 00.00 33, para. 1.3.4) and Japanese New Year's observances are subtracted from the 121 calendar days, the actual time the Contractor will have to complete all of the dredging, associated surveying and acceptance inspections will be roughly 78 working days. In light of all of the coordination required, the 78 working days is really cutting the schedule close. Would the Government consider modifying the specified period of performance of 540 calendar days?

The 90 calendar days will be extended to finalize report and document after dredging works.

See Attachment (5).

Sec 01 14 00.00

33; Para.

1.3.2(g); Page 4

Overnight Berthing:

This section states that overnight berthing of Contractor's vessels will be limited to just (2) two; however, this type of operation requires a larger number of vessels for it to be done safely and efficiently. Will the Government reconsider the specified quantity of (2) two vessels?

There is no limit number of vessel berthing and floating-equipment if there is no impact with ship operation and it is approved by Port Ops.

See Attachment (5).

Sec 35 20 23.00

33; Para. 1.9;

Over depth Dredging:

In regard to over dredging, does the 30 cm allowable over dredging depth also applicable to the side slopes that are within the "dredging limits", or is that applicable to just the flat

(horizontal) seabed?

The 30 cm allowable over dredging depth also applicable to the side slopes that are within the "dredging limits".

Sections 01 14

00.00 33 & 35

20 23.00 33;

Paragraphs 1.2.2

& 3.3.3.1; Pages

2 & 6

Down time Compensation:

This section states that Contractor will be compensated for any downtime caused by rescheduling brought about by emergency use of the dredging area by the military.

Question 1 - How can Contractors best reflect a single hourly rate for the multiple work tasks which could be impacted by an

"emergency use" situation requiring a demobilization and remobilization and which each carry a significant cost difference?

Examples of planned work tasks which have significant costs differences include crane barges used for deploying and retrieving framed silt fence, divers for removal of non-hazardous anomalies, dredger and transport barge during actual dredging operations.

Question 2 - Will the hourly rate(s) also apply to time associated with demobilizing and remobilizing, or will the hourly rate(s) be applied only to the time the Government uses the dredging area under the "emergency use" provision?

Question 3 - To safely shut down work operations and demobilize due to an "emergency use" situation a minimum of six

(6) hours would be needed. How much advance notice can

Contractors expect to receive in an "emergency use" situation?

Question-1:

The hourly cost of dredging work should be reflected as down time.

Question-2:

The hourly rate(s) will be applied all the effort of the time for Government uses the dredging area under the

"emergency use" provision.

Question-3

The Government intends to issue the "Suspension of Work

Order" 14 calendar days prior to suspend the Contractor's work.

See spec 01 14 00. 00 33 page 2, para 1.2.2 Government

Emergency Use Scheduling Requirements.

Sec 35 20 23.00

33; Para. 1.13.1;

Site Investigations:

Electromagnetic surveys are required to be conducted prior to dredging and surveys are more effective if conducted when there aren't any berthed crafts in the way; will the Government have all watercrafts cleared from the area to be surveyed or are

Contractors expected to work around them?

The Electromagnetic surveys is performed when the ship is not berthed. The Port OPS will coordinate the ship operations in

India Basin to enable Contractor to complete the Site

Investigations works within 90 days.

See spec 01 11 00. 00 33 SUMMARY OF WORK, para 1.4.1.2

Sequence Work.

Atch (3), Approved

Electromagnetic

Survey Equipment

List

For Atch (3), Approved Electromagnetic Survey Equipment List, does this mean that we have to use the listed equipment under this contract?

Please see the Government’s response for Question No.1.

SECTION

01 11 00. 00 33

Para1.4.1.2

In the Para 1.4.1.2, the Port OPS will coordinate the ship operations in India Basin to enable Contractor to complete the Site

Investigations of Work Sequence 1 within 90 days. Does 90 days apply for only CLIN0001 or both CLIN0001 and CLIN0002?

90 days is applied for both CLIN0001 and CLIN0002.

The WORK SEQUENCE is separated CLIN 0001 (Base sequence) and CLIN 0002 (Option-1 sequence)

The Government reserves the unilateral right to award CLIN

0002 to the Contractor at the proposed price within 90 calendar days after the contract award. A firm fixed proposed price is required for CLIN 0001 and CLIN 0002.

No provision is made for economic price adjustment.

Award of CLIN 0002 extends the contract completion date by 30 calendar days upon award of the CLIN. ( refer 00 22 13.00 33

SUPPLEMENTARY INSTRUCTIONS TO OFFERORS para

1.2 .b)

01 35 26

Para 1.7.1.4.3

Para 1.7.1.4.4

These paragraphs are stated regarding the CDSO’s requirement and Safety Personnel Training Requirement. Can CDSO be SSHO under the contract?

SSHO can serve as CDSO.

01 35 00

Para 1.3 SD-07

Regarding Naval Architecture Analysis listed in SD-7. We are not familiar with Naval Architecture Analysis, so could you please give us details of this?

Naval Architecture Analysis (NAA) is required only when it is uses with barge mounted mobile cranes ( mobile crane set onto the barge ship), please see EM385-1-1 Section 16.L

DWG

C-001 Regarding #2 of GENERAL DESCRIPTION OF WORK in DWG

C-001. It is stated that PROVIDE ELECTRO MAGNETIC

SURVEY, UNDERWATER INVESTIGATION BY DIVERS

(150 EA), SURVEY REPORTS AND DRAWING. Can we request a change of costs if values after the survey are increased?

Also, could you specify what does “150 EA” mean? Should we conduct the underwater investigation for the base, and for the option separately? In that case, will the underwater investigation be required 300 EA in total?

1. Changes to the specifications will be executed in accordance with 52.243-4 Changes. Changes in quantities will be executed in accordance with 52.211-18 Variation in Estimated Quantity. See para “Variation in Estimated

Quantity” in General Information in the IFB.

2. 150EA indicates the number of “underwater investigation by diver” and “remove existing debris “. See drawing C-

001, General description of work, scope 2.

3. It is not necessary to separate the underwater investigation for base and option.

4. No, the underwater investigation is required 150EA in total base and option-1.

011400.0033

Para1.2.1(3)

In paragraph 1.2.1 (3), it is said “The Government will inform berthing schedule of each berth 30 calendar days before berthing.”. The Berthing schedule is very important for us in order to manage the construction schedule. Will the Government inform the schedule with no delay?

The Government will inform berthing schedule of each berth 30 calendar days before berthing as indicated in

Section 01 14 00. 00 33 Pra1.2.1 (3).

011400.0033

Para1.2.2

In case of the Government issues Suspension of Work Order, or we are not able to work due to mooring by other ships, will the contractor be compensated the expenses due to the extension of the construction period or so?

See spec 01 14 00. 00 33, para 1.2.2

The Contractor will be compensated for all delays, costs, as appropriate, in accordance with the FAR 52.242.14

Suspension of Work clause.

011400.0033

Para1.2.2

Regarding a part of “The Contractor must remove all construction materials and equipment; must provide temporary work; and must clear the areas needed by the Government during emergency use.”

Could you please be more specific?

Remove all construction materials and equipment, clear the areas, provide temporary work, and clear the areas needed by the Government during emergency use.

011400.0033

Para1.3.3

In this paragraph, it is mentioned that the project site will be available Monday through Friday, excluding all U.S. legal holidays. To begin with, we have a limited working days to conduct the dredging work. In addition, we might run out of construction period if something would happen. If so, can we work on Saturday, Sunday, or U.S. legal holidays?

See spec 01 14 00. 00 33, para 1.3.4

All work outside of regular hours is subject to approval by the Contracting Officer.

013000.0033

Para1.5.1

014500.0033

Para1.5.2

Para1.7

SECTION

014500.0033

Para1.5.1.2

In this paragraph, it is described that qualified superintendent and/or QC representative must have fluent English communication skills. However, there is no qualified persons who also have an

English skill in our company.

On the other hand, there is a section regarding Interpreter

(SECTION 01 30 00.00 33, paragraph 1.7).

With that, can we provide an interpreter on the site instead?

As a side note, SEC 01 45 00.00 33, paragraph 1.5.1.2

“Qualifications”, there is no such a statement regarding English communication skill.

Contractor must accompany with interpreter if there is no qualified persons meet the English language requirements.

See spec 01 30 00. 00 33, para 1.7

When the QC manager or the project superintendent talks with the Government representative, on-site or off-site, they must be accompanied by their interpreter.

013526.0033

Para1.7.1.4.3 a

Regarding CDSO requirement in this paragraph. During the dredging ph-1, CDSO could be SSHO. With that, does this condition apply to Ph-2 as well?

SSHO can serve as CDSO.

35.2023.0033

Para1.8

"FAR 52.212-11" is described in SPEC SEC 35 20 23.00 33

PARA 1.8 “Quantity of Material”, and we could not find this FAR in the official website. However, we find FAR 52.211-18 as

"Variation in Estimated Quantity" instead of "FAR 52.212-11".

We understand that the unit prices remain as it is if the variation within ±15%, and an equitable adjustment in the contract price shall be made in case of the variation is beyond ±15%.

Is our understanding correct?

The FAR Clause 52.211-18 is apply for only quantities.

Proposed unit price is fixed; FAR Clause 52.211-18 does not change the unit price.

SECTION 35

20 23.00 33

Para 1.8

It is said that according to the test results, fluorine and boron are slightly above the standard values. The dredging sediment must be mixed with insolubilizing agent to keep dredging sediment below the standard value and disposed to appropriate disposal facilities.

Could the Government please specify whether the total of amount of dredged soil to be mix insolubilizing agent is 20,9000m3?

Government assumes that the insolubilizing agent will be applied to dredging sediment 20,900m3.

00 22 13. 00 33

Para 1.1

CLIN 0001AD

In attachment (a) 1624521, Supplementary Instructions to Bidders, it is mentioned the downtime is 120 hours. In case the downtime is increased due to Government circumstances, can the Gov. cover the cost?

Yes.

See Section 35 20 23.00 33, 1.14 Downtime.

20 23.00 33

Para 1.8

Regarding the quantity of material, we should complete the work specified whether the quantities involved are “greater or less than those estimated”. Could we expect that it is within ±15%?

Also, the dredging sediment must be mixed with insolubilizing agent. Is would be okay for us to mix the sediment with insolubilizing agent after unloading?

1. The quantities in Attachment (a) SUPPLEMENTARY

INSTRUCTION TO BIDDERS with “Unit Prices” are the expected quantities. However, the quantities may be significantly higher or lower. Therefore, the FAR 52.211-18

Variation in Estimated Quantity was included to permit the total price to be increased or decreased due to significantly higher or lower quantities

2. Regarding to mix the sediment with insolubilizing agent, it depends on the disposal facility. Contractor can determine the disposal method.

20 23.00 33

Para 1.9

Could the Government please consider that the overdepth

(YOBORI) shall be 0.6m (YOBORI width for slope: 4.0m) according to the Japanese regulation for the dredging of -0.9m or more?

The side YOBORI soil amount =Side YOBORI excavation area×

(Bottom YOBORI thickness×1/2). Could this formula be applied?

1. No, it can’t. Government requires the dredging depth shown in drawing and consider the YOBORI volume 0.3m.

Contractor must dredge to keep the required dredging depth.

But government will count the dredging volume with required depth plus YOBORI 0.3m.

2. Yes, it can be applied.

20 23.00 33

Para 1.13.1

In the spec, it is specified that the Contractor is responsible for other conditions encountered which are not unusual when compared to the conditions recognized as usual in dredging activities such as those required under this contract. Does the contractor have to be responsible for unusual condition that occur outside of the contractor’s responsibility?

No, contractor must submit RFI when contractor encounter with an unusual condition.

20 23.00 33

Para 3.1.1

If the work is suspended since we encounter unexploded ordnances during survey, dredging, or segregation, can the

Government cover the standby fee for dredging barge, sand carrying barge, sand lifting boat, tag boat, backhoe, and dump truck, etc.?

The Contractor will be compensated in accordance with the

FAR 52.242.14 Suspension of Work clause.

See Section01 14 00. 00 33 Para1.2.2 Government Emergency

Use Scheduling Requirements.

20 23.00 33

Para 3.5

It is indicated that the dredged material must be transported to Off-

Base every day, but can the sand-carrying barge be moored next to the dredging barge until it becomes full?

Yes, the sand-carrying barge can be moored if there is no impact with ship operation and it is approved by Port Ops.

See 01 14 00. 00 33 Para. 1.3.2(g); Page 4

20 23.00 33

Para 3.5.1

It is mentioned that providing treatment/dewatering plant beside an off-base commercial berth; however, can the residual water in the cargo hold of the sand carrying barge be discharged to within the silt contaminate frame, which is attached to the bow?

Yes, it can if it is within the silt contaminate frame.

20 23.00 33

Para 3.5.2

It is specified that segregating dredged materials at contractor’s premises to meet requirement of final processing facility for disposal/recycle.

Does the contractor’s premises mean the disposal company’s premises?

Yes, the contractor’s premises also include the disposal company’s premises.

20 23.00 33

Para 3.5.3.1

It is mentioned that disposal of the treated/dewatered/segregated material at approved disposal facility by the prefecture; however, with regard to the dredged soil, a manifest would not be issued since it is not considered as Industrial Waste. Would it be okay if we do not submit a manifest?

1. Manifest does not need to submit if the dredged soil will be disposed as not industrial waste.

C-001 It is indicated in the note No.8 that all existing obstructions that interfere with dredging work must be removed temporarily. Could the Government specify what kind of obstructs would be there?

Also, are there any places where the removed obstructions could be stored or moored temporarily?

2. Government assumes that the obstruction is metal scrap, concrete debris and tire with wire.

3. There are no places where the removed obstructions could be stored or moored temporarily on the base area.

C-001 Are we able to get into the SSK area to conduct a dredging work approximately 5m from the boundary so that we can complete the surroundings of the boundary? Also, could the ships enter the SSK area to conduct dredging work?

Government will coordinate with SSK if contractor needs to conduct dredging work. And it is subject to approval by the

Contracting Officer.

C-101~105

The planned water depth (MDD) is -10.67m; however, there are shallow parts around the current construction area. Considering the measurement error, there is a high possibility that the hydrographic survey would not pass. Can the depth change to -

10.9m? (Refer to the colored area, especially the red circles in the

Attachment No.1)

No, the depth can’t change. Follow the drawing.

The dredging sediment area is based on the hydrographic survey data on 2015 and reference purpose only.

Dredging volume and area are government assumption based on the hydrographic survey data on 2015 and sediment rate for 2020.

Contractor needs to determine the actual dredging area by hydrographic survey and submit the hydrographic report.

C-101~105

In the areas that are approximately 20 m indicated in the corners of the map: between berth No.1 and No.2, berth No.6 and No.7, and berth No.9 and No.10; silt containments and turbidity protection floating frames will be in contact with both berth sides, which makes it difficult to conduct the dredging work. Are we able to conduct the dredging work without using the floating frames for these areas? In that case, the silt containments and turbidity protection curtain will be installed between the dreading ship and the quay. (Please refer to the red circles A&B in the Attachment

No.2)

Contractor must uses the floating frame to perform the dredging work.

Follow the drawing.

Can the dredging ships (sand-carrying barge, tag boat, and etc.)

berth daily in India Basin after the work is completed? Also, there is no quay in Sasebo city where sand-carrying barges can be moored at all times. Is it possible to secure a place where we can moor these barges in India Basin?

Yes, it is possible if there is no impact with ship operation and it is approved by Port Ops.

See 01 14 00. 00 33 Para. 1.3.2(g); Page 4

C-304 Could the government provide us with detailed drawings such as cross-sections of the areas that are marked as red circles in the attached drawing? We would like to confirm the structures on the quay wall side. (Please refer to the Attachment No.3)

Yes.

See Attachment (5)

Under this project, coordination with ships from the SSK area will be required. Will the Government be responsible for the ship coordination?

Yes, Government will coordinate with SSK.

01 14 00.00 33

Para 1.2.1(1)

It is mentioned that the Contractor must not work on a berth when ship is berthing. Does this mean that if one ship is berthing in

India Basin, we cannot conduct work on all berths? Are we able to work on the other areas where the ship is not berthing?

Contractor is able to work on the other areas (berth) where ship is not berthing.

01 11 00. 00 33

Para1.4.1

The construction period has been changed to 630 days. If we sign the contract by the end of September, the estimated time of completion for the work would be around June 2023. Based on the previous dredging project, it will normally take

5 to 6 months to complete the documents such as the quality control, safety, environment protection, and diving plan, etc.

Therefore, on-site construction work will not be able to start until

March 2022. Considering the optional dredging work, the whole dredging work will take approximately 6 months. We also consider the movement period of the ships. With that information, we would like to request an extension until March 2024 for the completion of work.

The construction period is not changed. Follow the Spec section 01

11 00. 00 03 Project schedule and time constraints.

Performance periods can typically be changed after award due to:

- Differing (unforeseen) site conditions in accordance with

52.236-2 Differing Site Conditions

- Changes to the specifications (or changes from what the specification required) in accordance with 52.243-4

Changes

- Unforeseeable cause beyond the control and without the fault or negligence of the Contractor in accordance with

52.249-10 Default.

35 20 23. 00 33

Para 1.2

SD-11

Regarding the closeout submittals, should we prepare the bathymetries for each dredging area in both meters and feet? In the previous dredging project for the Juliet Basin, we only prepared it for meters.

Yes, the both meters and feet are required. See drawing C-001, General description of work, Scope No2 and Spec 35 20 23.00 33 para3.6 hydrographic survey.

35 20 23. 00 33

Para3.1.1

Para3.3.1.1

In this paragraph, it is mentioned that prior to start of dredging work verify locations of magnetic anomalies, and detect any magnetic debris and unexploded ordnances (UXO) by towing a magnetic probe, having 2 meter depth detecting capability. It would be okay to use the suspended-type small boat that we used in the previous dredging project instead of using the towed-type?

Yes, contractor can decide the boat type.

35 20 23. 00 33

Para1.2

SD-11

Para3.6

In the paragraph 3.6, hydrographic survey, it is mentioned that the

Contractor must submit reports and drawings including depths and contours in meters and feet, rounded off to first decimal place;

however, are we allowed to submit the reports rounding off to second decimal place?

No, it does not allow. Follow the Spec Section 35 20 23. 00 33, Para1.2 SD11 Para3.6.

35 20 23. 00 33

Para3.6.2

In the method of measurement, it is mentioned that the material removed will be measured by cubic meter in place, by means of soundings taken before and after dredging. Survey will be taken by 200 kHz sonic methods, and additional lead line survey upon requested by the Government. We assumed that the material removed should be measured by square meter not by cubic meter?

Also, could survey be taken by 400 kHz (Multi)? We think that it would be better to measure the depth with multi. (prior to construction and after completion)

1. The dredging sediment volume was measured by cubic meter.

2. Contractor can decide the method of measurement if the requested depth information is provided.

Sec 01 14 00.00

33; Para.

1.3.2(g); Page 4

Overnight Berthing:

Can Contractors use the mooring bollards of the facility while berthing overnight?

Contractor can use the mooring bollards if there is no impact with ship operation and it is approved by Port Ops. See 01 14 00. 00

33 Para. 1.3.2(g); Page 4

Section 01 14

00.00 33 Page2

1.3.1.2

If a contractor will not be awarded, can the same contractor work on this contract as a subcontractor?

Yes

Section 01 11

00.00 33

1.4.1.2

If the dredging work is carried out for multiple years, the dredging range will be used even during the work exclusion period (4/1 ~

10/31). Therefore, there is a possibility that the range where the work has already been completed at the planned water depth will be reworked. Is it possible to deliver the dredging completion range every year?

Regarding to "Work Sequence-3, dredging work", it is possible to complete for each work sequence area if the post hydrographic survey and hydrographic survey for JCG chart edit are completed and confirmed required depth. See Section 01 11 00. 00 33, para1.4.1.2 Sequence work table.

Section 01 32

16.00 33

Page 6 1.5

This is a question when annual inspection is not possible.

Is the rework that occurred during the period from April 1st to

October 31st allowed to be subject to the delay covered by the contract change (Section 01 32 16.00 33 Page 6 1.5)?

If the dredging depth isn't reached to required depth, contractor needs to rework with contractor's responsibility.

C-105

There are the areas where we do not have to dredge due to the depth of bathymetry conducted by the Government in berth #0; however, in case the dredging will be required due to the bathymetry conducted prior to the dreading, would it be possible for the Government to remove the overhanging scaffolding? (Please see the photo ①)

The Scaffolding belongs to SRF.

Please coordinate with the COR when you need to move.

We saw that the ships for night-soil treatment were moored at berth

#0 and 1 at the second site visit, would it be possible for the government to remove the ship once the work started? (Please see the photo ②)

Those barges will be moved by the Contractor. Please coordinate with the COR / ET and Port Operation.

51 Regarding the response of No.40 (Amend 03). The Government responded that the construction period was not changed. However, we reconsidered the extension of construction period.

If the contract is awarded on Sep 2021, roughly construction schedule is as follow (see attached schedule as well):

1. Document preparation starts Oct 2021, and it takes approx.

6months.

2. Site Survey starts around Apr 2022.

3. Hydrographic survey, 1st magnetic survey and Analysis will be conducted for 3 months. (Apr-Jun 2022)

4. Suspension Period (4 months), any activity generating muddy water (i.e. diving survey, unloading for metals and dredging work) will be prohibited. (Jul-Oct 2022)

5. Diving work starts Nov 2022 and Dredging work starts afterwards until Mar 2023 (not able to complete by Mar 2023.)

6. Survey will be conducted for 2 months (Apr-May 2023)

7. Suspension Period (Jun-Oct 2023)

8. Work will restart from Nov 2023.

***Suspension Period is about 9 months.***

Our question is;

Is it possible for the Gov. to consider not to include the suspension

In determining the performance period, the Government considered the periods of time dredging work cannot be performed including the Exclusionary Period between 1

April to 31 October.

The performance period remains unchanged.

Please see the Government’s response for Question No.1.

period, which has muddy water, to the construction period? Or, could the Gov. to issue a Work Suspension Letter for the suspension period?

Please consider our proposal.

File details come from the government source that posted it. Updated .