Attachment 11 Questions and Answers -Amendment dated 5-31-23.docx

Questions and Answers: Install Hopper Feed Bins

1. There are no specifications on the 3-hoppers bins. Can you please provide specifications and details on the 3-Hopper bins.

Government Response: Per the Rev. #2 SOW (The Contractor shall procure (One) 6-ton Hopper Bin and (Two) 13 tons Hopper Bins with the following specifications.

HOPPER BIN UNITS: 6-ton Hopper Bin - Capacity rated at 6.1 tons at 40 pounds per cubic foot materials, designed for free-flowing materials, Feed Bin style roof system and 60-degree hopper system. Bin shall have outside ladder with safety cage and outdoor lock system. Auger shall be 4” boot with 20-foot x 4” rigid auger with each with (One) (1 HP), 208 Volt, 4.6 Amp, 3 Phase motor and drive.

13-ton Hopper Bins - Capacity rated at 13 tons at 40 pounds per cubic foot materials, designed for free-flowing materials, Feed Bin style roof system and 67-degree hopper system. Bin shall have outside ladder with safety cage and outdoor lock system. Auger shall be 4” boot with 20-foot x 4” rigid auger with each with (One) (1 HP), 208 Volt, 4.6 Amp, 3 Phase motor and drive.

Hopper bin shall be assembled and set on Contractor prepared concrete pads. Hopper Bin units may match TAM Systems Model 45 bin or approved equal. Refer to Attachment #2 for sample hopper bin installation.)

1. There are no specifications on the concrete. Can you please provide specifications and details on the concrete.

Government Response: Per the Rev. #2 SOW (The contractor shall compact the existing soil to 95% compaction. Then install 6 Mil. Vapor Barrier, 4” of CR6 stone, 3,500 psi 11” thick Concrete Pad. The concrete pad shall be 9’-0” Wide x 30’-0” Long and 11” Thick. It shall have 5” from the Top of the concrete pad a continues layer of Welded Wire Fabric 6x6 W2.9/W2.9 within 3” of all edges of the concrete pad along with on top of the welded Wire Fabric. The concrete mix design is listed below with specifications.)

The Low-Shrinkage, Crack-Free Mix (per cubic yard)

High Range Water Reducer: Eucon 37 - 74 oz

1. There are no specifications on the electric motors. Can you please provide specifications on the electric motors.

Government Response: Per the Rev. #2 SOW each hopper shall have (One) (1 HP), 208 Volt, 4.6 Amp, 3 Phase motor and drive.

4. The statement of work for this solicitation mentions "accessories" for the hopper bins. Can you provide a description of what accessories the facility requires on these bins?

Government Response: Per the Rev. #2 SOW each Hopper Bin shall have (One) outside ladder with safety cage and outdoor lock system.

5. The sow mentions "through wall" penetrations so it seems they are requesting a conveyance system to and from the building? Can you clarify please?

Government Response: There is not a penetration through a Building. A feed Truck will park aside the Hopper Bin and the Auger System will discharge the feed into the bed of the truck.

6. The sow references "attachment 2" for a list of materials, However the only "attachment 2" on SAM.gov is the proposed pad location. Can you please provide the list of required materials and equipment?

Government Response: Per the Rev. #1 SOW and the new "attachment 2" for sample Hopper Bin Installation.

7. During the site walk, it was noted the scope and accompanying document would be revised and reiussed. Please confirm the anticipated timeline for this.

Government Response: The Revised SOW has been uploaded in SAM.GOV.

8. During the site walk, we noted the existing electrical panels do not appear compliant with current NEC requirements. Will this be addressed as part of the scope of work?

Government Response: The contractor shall only include within their proposal the items within the SOW only. The contractor shall only utilize the existing General Electric Small Stainless Steel Electrical Panel. See Attachment #4 Picture of the existing General Electric Small Stainless Steel Electrical Panel.

9. During the site walk, we noted there are existing buried conduits and water lines in and around the area of the proposed hopper location. Are there any red line or as built drawings to show where buried utilities are installed?

Government Response: There are no red line or as built drawings to show where buried utilities are installed. The Government Will Mark the Utilities within the limits of Disturbance to protect the Government. But the Contractor is required to call Miss Utility and have the utilities marked as well to protect themselves.

10. During the site walk, the facility reps/employees noted that many of the buildings and features around the proposed hopper location are no longer in use. What if any demolition work should be included in the scope of work?

Government Response: The additional buildings aren’t related to the Scope of work so the contractor shall not include within their proposal not Scope related tasks.

11. Can soils excavated for the concrete pad preparation be staged/stockpiled onsite for fill? If so, please confirm where these materials can be staged. If not, can excavated soils be spread/graded in the surrounding area? If not, please confirm that offsite disposal for excavated soils should be included. If disposing offsite, please confirm if acceptable to assume excavated soils are clean and free of pesticides or other chemicals/waste.

Government Response: Per the Rev. #2 SOW the contractor shall remove all debris from the property of the USDA BARC and dispose of it per the SOW.

12. Please confirm hopper specifications and/or materials of construction, minimum requirements (size, type, connections, controls, additional equipment needs) Government Response: Per the Rev. #2 SOW (The Contractor shall procure (One) 6-ton Hopper Bin and (Two) 13 tons Hopper Bins with the following specifications.

HOPPER BIN UNITS: 6-ton Hopper Bin - Capacity rated at 6.1 tons at 40 pounds per cubic foot materials, designed for free-flowing materials, Feed Bin style roof system and 60-degree hopper system. Bin shall have outside ladder with safety cage and outdoor lock system. Auger shall be 4” boot with 20-foot x 4” rigid auger with each with (One) (1 HP), 208 Volt, 4.6 Amp, 3 Phase motor and drive.

13-ton Hopper Bins - Capacity rated at 13 tons at 40 pounds per cubic foot materials, designed for free-flowing materials, Feed Bin style roof system and 67-degree hopper system. Bin shall have outside ladder with safety cage and outdoor lock system. Auger shall be 4” boot with 20-foot x 4” rigid auger with each with (One) (1 HP), 208 Volt, 4.6 Amp, 3 Phase motor and drive.

Hopper bin shall be assembled and set on Contractor prepared concrete pads. Hopper Bin units may match TAM Systems Model 45 bin or approved equal. Refer to Attachment #2 for sample hopper bin installation.)

13. Please confirm the size and specs of the concrete pad including sub base, finishing (broom/trowel/other, camfered edges, coatings, etc) Government Response: Per the Rev. #2 SOW (The contractor shall compact the existing soil to 95% compaction. Then install 6 Mil. Vapor Barrier, 4” of CR6 stone, 3,500 psi 11” thick Concrete Pad. The concrete pad shall be 9’-0” Wide x 30’-0” Long and 11” Thick. It shall have 5” from the Top of the concrete pad a continues layer of Welded Wire Fabric 6x6 W2.9/W2.9 within 3” of all edges of the concrete pad along with on top of the welded Wire Fabric. The concrete mix design is listed below with specifications.)

The Low-Shrinkage, Crack-Free Mix (per cubic yard)

High Range Water Reducer: Eucon 37 - 74 oz

14. Please confirm the preferred means of filling and emptying the hoppers.

Please confirm the voltage/phase/capacity available for electric power.

Government Response: Per the Rev. #2 SOW The Hopper Bin shall be top loaded and emptying from the lower side of the Hopper Bin. Each Hopper Bin Auger shall have (One) (1 HP), 208 Volt, 4.6 Amp, 3 Phase motor and drive.

15. Please confirm any controls or control equipment required for the hoppers.

Government Response: Per the Revised #2 SOW the contractor supply and install on one of the front legs of each Hopper Bin a Motor starter with Weather Tight Metal Start/Stop Double Push Button with an Emergency Stop Push Button and Reset Switch, 208 volt 20 Amps, 3 Phase, Rated for 600V AC, 50-60Hz, with each switch connected to the new Auger motor and the New Electrical Sub Panel 20 Amps, 208 Volt, 3 Phase Circuit Breaker Supplied by the contractor. The Contractor shall supply for each switch the required (4 Wire) THHN #10 Copper Wire inside of ½” Grey Electrical PVC Piping that is anchored the metal leg of the Auger and the top of the Concrete Pad in accordance with the current NFPA 70 National Electrical Code. Refer to Attachment #3 for sample hopper bin and control.

16. There are references to air, noise, and vibration monitoring in the solicitation documents. Please confirm if all are applicable for this project.

Government Response: This is not an application for this Government Requirement and shall not be included in the contractors proposal.

17. The submittals noted in the submittal list do not appear consistent with the scope of work. Please confirm if these submittals are accurate.

Government Response: The contractor shall utilize the Revised Submittal Registry for this Government Requirement Attachment #4.

18. Please confirm acceptable staging areas for construction materials and equipment.

Government Response: The new Attachment #1 for Location Details shows the location for the contractor to stage their materials and equipment.

19. Please confirm the material and its specs, to be stored in the hoppers.

Government Response: The materials to be stored in the Hopper Bins is Animal Dry Feed.

20. An open suggestion following discussions with facility employees at the site, the local electrical panels do not have backup power (generator) whereas the active areas of the site do. Per site staff, there are backup generators previously installed elsewhere at the site which are not in use. Consider relocating/including backup power for the area of the new hoppers for future use.

Government Response: This is not in the Scope or SOW of this Government Requirement and shall not be included in the contractors proposal.

21. Please provide the basis for design for the Hopper Bins.

Government Response: The Hopper Bins where designed to store Animal Feed and distribute.

22. Please confirm whether power must be run underground to the bins and augers.

Government Response: Per the Revised SOW the electrical wiring for the Hopper Bin Augers shall run underground.

23. SOW page 4 calls for 6" reinforced concrete pad for the hopper bins. Hopper Bin specifications call for 11" thickness for the 7' diameter bins (13 ton). Please confirm this contractor is to provide 11' reinforced concrete pad.

Government Response: Per the Revised SOW then install 6 Mil. Vapor Barrier, 4” of CR6 stone, 3,500 psi 9” thick Concrete Pad. The concrete pad shall be 9’-0” Wide x 30’-0” Long and 11” Thick. It shall have 4” from the Top of the concrete pad a continues layer of Welded Wire Fabric 6x6 W2.9/W2.9 within 3” of all edges of the concrete pad along with on top of the welded Wire Fabric.

24. Please confirm that the three hopper bins are to sit on one continuous rectangular pad. Confirm the dimensions of the pad.

Government Response: The concrete pad shall be 9’-0” Wide x 30’-0” Long and 11” Thick concrete pad with 4” CR 6 stone and 6 Mil. vapor Barrier.

25. How many inches of gravel are necessary below the concrete pad?

Government Response: The contractor shall use 4” of CR6 Stone to be compacted per the SOW.

26. What type of stone is required below the concrete pad?

Government Response: The contractor shall use 4” of CR6 Stone peer the Revised #2 SOW.

27. Should a vapor barrier be included? If so, please provide specifications.

Government Response: Per the Revised SOW the contractor shall supply and install Class 1, 6-mil Polyethylene Vapor Barrier.

28. Please confirm wire mesh reinforcement is acceptable reinforcement in the concrete pad per the manufacturer's specifications.

Government Response: Per the Revised SOW the contractor shall supply and install 5” from the Top of the concrete pad a continues layer of Welded Wire Fabric 6x6 W2.9/W2.9 within 3” of all edges of the concrete pad along with on top of the welded Wire Fabric.

29. SOW page 4, bullet 5 says "refer to Attachment 2 for sample hopper bin installation". Attachment 2 is the Project Site Location map. Please provide a sample hopper bin installation attachment.

Government Response: Per the Revised #2 SOW the contractor shall supply and install. Refer to Attachment #2 for sample hopper bin installation.)

30. SOW page 5 bullet 1 says to "refer to Attachment #2 for the list of equipment to be installed". This list is not included in Attachment #2, which is a map. Please provide.

Government Response: Per the Rev. #1 SOW the Contractor shall procure (One) 6-ton Hopper Bin and (Two) 13 tons Hopper Bins with the following specifications.

HOPPER BIN UNITS: 6-ton Hopper Bin - Capacity rated at 6.1 tons at 40 pounds per cubic foot materials, designed for free-flowing materials, Feed Bin style roof system and 60-degree hopper system. Bin shall have outside ladder with safety cage and outdoor lock system. Auger shall be 4” boot with 20-foot x 4” rigid auger with each with (One) (1 HP), 208 Volt, 4.6 Amp, 3 Phase motor and drive.

13-ton Hopper Bins - Capacity rated at 13 tons at 40 pounds per cubic foot materials, designed for free-flowing materials, Feed Bin style roof system and 67-degree hopper system. Bin shall have outside ladder with safety cage and outdoor lock system. Auger shall be 4” boot with 20-foot x 4” rigid auger with each with (One) (1 HP), 208 Volt, 4.6 Amp, 3 Phase motor and drive.

Hopper bin shall be assembled and set on Contractor prepared concrete pads. Hopper Bin units may match TAM Systems Model 45 bin or approved equal. Refer to Attachment #2 for sample hopper bin installation.)

31. SOW page 7 letter M allows for a 45 day period for ordering materials. The lead time for the hopper bins exceeds 45 days. Please confirm the contract period will be extended to allow for a proper lead time.

Government Response: Per the Revised #2 SOW the contractor shall a period of 75 days allotted for ordering materials and the delivery of ordered materials.

32. There are two pricing line items on page 3 of the solicitation - 001 furnish and install 3 hopper bins and 0002 concrete pad for installation. But, page 5 only has one CLIN. Are one or two CLINs to be provided? If two, where does USDA want the electrical & possible trenching for electrical portion of the project to be included?

Government Response: Provide one CLIN for the entire project. Page 3 of the form has 2 CLINS for internal USDA reasons. The Contractor shall procure and install the (3) Hopper Bins per the Revised #2 SOW, Supply the required materials to install the Concrete Pad per the Revised SOW and Supply the required materials to provide the electrical work for the Hopper Bins per the Revised SOW.