QandAs-16R0509_Tulua-Faca(06OCT16).pdf

Q&As # Drawing/Spec.

Reference Subject Description Responses

1 SOW Preliminary activities

The Contractor shall make the applicable verifications in order to certify the designs provided to be adequate for this installation and shall guarantee the correct execution of the work, meeting fill the standards of applicable codes before the start of the construction process. The contractor shall do a soils study including borings in the zones where the kennels are to be located. This means that contractor must perform new designs? We must include cost of new designs in our proposal?

The contractor shall verify the design in order to confirm structural requirements and perform shop drawings whereas applicable. However the contractor does not need to prepare a soil study for this project since the studies for Tulua and Facatativa were included in Amendment 001.

2 SOW General Please provide the soil study performed to determine the designs that appears in the drawings for both projects. Refer to answer to Q1.

3 SOW-Tulua General

Ítem 2.01.10. Please provide specification of shredded rubber to be used as cushioning system. Dimension of particles? Density?

The cushion system shall comply with the ASTM F 1292- 04 to have a critical height (i.e. G-max less than 200, HIC less than 1000) of 12 ft. minimum. This is a rubber product manufactured from ground recycled tire rubber with loose fiber removed and free of foreign materials. It is comprised of a mixture of crumb rubber and rubber buffings to aid in compaction. The Composition is 100% ground recycled tire rubber from whole passenger and/or truck tires with loose fiber removed and free of foreign materials. Rubber is considered a non- hazardous filled hydrocarbon polymer that is non-toxic, non-metallic and principally a carbon-based organic material. Free Metal Content: < .01% (Wire Free) ASTM 5603. Maximum Loose Fiber Content: < .01% by weight. Colorant: < .75% by weight.

4 SOW-Tulua General

Item 2.01.10. “….around the tower at a perimeter of 20 m. in order to be used to contain the cushioning system…”. Please clarify if perimeter refers to a circle of 20m-diameter with the axis of the tower as center, or if is a rectangle with 20m sides?

It is a 20 m diameter circle.

Questions and Answers

Solicitation # SAQMMA-16-R-0509 Radar Tower & Kennels in Tulua and Tower in Facatativa, Colombia

5 SOW-Tulua General

Item 2.02. “…(only installation of elements supplied by CNP…”.

Please clarify which elements will be supplied by CNP.

The Colombian National Police (CNP) will supply the metallic skids for one of the concrete platform at each location (Tulua and Faca)

6 SOW-Tulua General

Item 3.06.04 Potable water treatment system. Please provide exact location of this plant. Distance to connection point? System must be designed for the contractor?

Refer to Paragraph 3.06.01 in the SOW. The distance is 200 m. This was included in the Water supply drawings.

The contractor shall supply shop drawings during the construction phase based on the parameters shown in the SOW and the drawings.

7 SOW-Tulua General

Item 3.06.05 Sewage treatment system. Please provide exact location of this plant. Distance to discharge point? System must be designed for the contractor?

Refer to the Sewage system drawings included in the solicitation. The contractor shall supply shop drawings during the construction phase based on the parameters shown in the SOW and the drawings.

8 SOW-Tulua General

Item 3.06.06) Storm Drainage water system. Is accepted to discharge rainwater to the terrain? Or we must consider connection to an existing network? If so, please provide distance and specifications of this point.

The Storm drainage waters shall be discharged to the existing terrain.

9 SOW-Tulua General

Trees removal. Please clarify which is the approved procedure for the remotion of the trees located at the area where the tower will be built

No remotion of the trees is included in the scope of this solicitation for this site. CNP will eventually perform this service if required.

10 SOW-Facatativa General

Item 5.03 General Electric Installations. Please provide exact location of the connection point for the electrical installations of this tower.

It is up to the contractor to finalize the final connection based on the two power connection points seen on the site visit, feeder, conduit, and junction box sizing shall be the same as in Tulua Tower.

11 SOW-Facatativa General

Trees removal. Please clarify which is the approved procedure for the remotion of the trees located at the area where the tower will be built.

The removal of the trees is not part of the scope of this solicitation. CNP will perform this item. However the contractor shall include in the proposal the clearing and grubbing item.

12 SOW-Facatativa General

During site visit, CNP representative talked about a specification related to the construction of the cushioning system. However, project’s specifications states just the use of the rubber confined by a low wall, and its correspondent drainage. Could you please clarify if there are additional activities to be taken into account?

The activities described in the SOW are basically the activities required for the cushioning system. Refer to answer to Q3 for additional info on the cushioning system.

13 Drawings General Could you please deliver the drawings in AutoCAD? Instructions were provided in Amendment 001.

14 SOW General Is there a study of soils that you can deliver for the two cities? Included in Amendment 001.

15 SOW Concrete work

Rappel Tower: Item 2.01.10 Tower Drop zone - Concrete Block walls and shredded rubber Cushing system: Should any treatment to the ground such as filling compact, enlisted in mortar, etc., be considered before filling with shredded rubber?

The contractor shall describe their prefer construction procedures as long as such proposal satisfies the technical and logistical aspects of the project as described in the solicitation SOW.

16 Drawings General-Kennels

Kennels: S12 Drawing. Must the foundation beams be constructed entirely including beams that are between the axes F and H.?

The contractor is expected to understand requirements included in the drawings/specs and propose the technical approach that satisfies such requirements.

17 SOW General

Must the proponent perform the procedures for the energization and enrolls meter before the energy company?

All permits related to this project are obtained by CNP.

However the Contractor shall provide technical support in relation to the required documentation for such permits. In reference to the electrical connection requirements to the temporary facilities, if local authorities request special permits, the contractor must process such requirements and cover any costs associated since this is a need added to the specifications or project scope.

18 SOW General-Kennels

Kennels: For purposes of design of the PTAP, could you please provide the characterization of water to be treated and the required flow

As shown in the SOW and in the drawings attached to this solicitation package, the contractor shall perform incidental designs of this PTAP and the characterization of the water shall be part of such design's scope. The offeror shall also take into account that a minimum parameter for the PTAP is the purification of at least 5 Gal/min as a capacity or capability requirement.

19 Drawings Kennels

Kennels blueprints have a mistake, to make structural masonry would change the dimension, can correct on the structural drawings?

No mistake was registered or found in the structural drawings. The contractor shall follow the designs and dimensions shown in drawings included in this solicitation which shows a masonry depth of 15 cm.

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