140P5324R0022__-_Demo_Questions_and_Answers_Amend_2__0002.pdf

140P5324R0022

Questions and Answers – Amendment 2

1. Question - It could be in the government's best interest for the government to test the various structures for lead paint and asbestos before solicitations are created. The reason for this is that if some or all of the structures do not have any contamination, the cost for the work will be significantly less. However, without knowing, responsible bidders will need to assume the maximum contamination and the associated costs for containment.

This will cost taxpayers more than is needed. And less experienced bidders might assume no lead paint or asbestos and then be unable to perform if positive tests result.

We have seen test results presented on these projects in the past.

Answer – The Park service is now testing the structures for lead and asbestos next week – we will publish the report once received.

2. Question: “I am not sure if I can with the spec as is. You state that lead testing will be required and If Lead Based Paint (LBP) is detected or Asbestos Containing Materials

(ACM) over 1%, the materials must be removed by contractors certified to handle ACM and/or LBP, and the material will be disposed of per state and local laws.

There is no lead testing required in NC. And no certifications are required unless the paint/lead is going to be removed. In this case, workers only need to wear respirators to cut the metal with a torch. The metal can then be sent to a metal recycling yard with the lead paint on it. Please advise as to if you will be keeping this spec. It will be very difficult to find workers to remove a water tank that are certified to handle LBP. We would have to remove the paint first and then demo.

Answer: The National Park Service is updating the Scope of Work - NO lead-based paint testing will be required by the contractors. The park service is performing the LBP and

Asbestos testing this week and will publish the results. The Scope of work will be updated, and the advertisement will be extended. The spec does not call for any lead-based paints to be removed or remediated. The spec only requires handling and disposal of the lead-based paint contaminated materials in accordance with NC state laws.

However, if there is any ACM found on the structures (we will have the report soon), there must be someone certified to handle ACM for this demolition. This is not the same at the requirements for lead-based paint. The spec will be updated.

3. Question: We can easily budget for asbestos and lead-based paint surveys for the structures. If asbestos or lead-based paint requires abatement, will that work be completed by others, or would it be a contract modification? Bidders cannot provide reasonable estimates for unknown amounts of asbestos and lead-based paint abatement as part of our base scope of work without having completed surveys.

Answer: The Park Service is completing the ACM and LBP inspections now and will provide the report in the coming weeks.

4. Question: Are the water tower or water tank in use? Are either of these filled with water and if so, whose responsibility would it be to drain the water?

Answer: – The water tower is not in use – it is completely empty. The water tank is also not in use, but it does contain some water. The scope of work says that the tank will need to be pumped out completely by the contractor and all water removed from the site before demotion can begin on this structure.

5. Question: Are there live electrical lines requiring termination or water lines/mains connected to the structures that need to be capped?

Answer: There are no live electrical lines requiring termination or active water lines that are connected to the structures.

6. Question: Would NPS consider other methods for demolition of the water than the

“top down” specified in the SOW?

Answer: Yes, other methods for demolition may be considered. However, no explosives will be allowed. Please clearly describe the method you plan to use in your proposal if it is not the top- down approach.

7. Question: Are we able to visit the site anytime?

Answer: Yes, the site is open all the time - they can go look at any time they want if they cannot make the planned site visit.

8. Question: Our team is concerned about safety in the demolition of the Water Tower. They have asked if the NPS has any information that will clarify how the top portion that contains water was constructed such as thickness, materials used and so forth. As this project will need to follow all OSHA requirements (which we understand are stricter than

NC requirements) the more we know about this structure the better the demolition plan may be that we propose.

Answer: This tower was constructed in 1989 and is a 75,000-gallon capacity tower. It was constructed with ASTM - A283-GR, C Steel Plates and ASTM A36 Structural Steel.

The Sphere at the top that holds the water is 1/4" thick steel. The Tank Cones under the

Sphere are 5/16 and 9/32" thick steel. The Plate Rings below the Tank Cones are 1" thick.

The pedestal 1st two upper sections are 9/32 and the lower 2 portions of the Pedestal are

5/16" thick. The Base Cone is 9/32" thick steel.

9. Question: is there any possibility of crushing all of the concrete material on site and either leaving (crush-n-run, #57 stone or rip-rap) material?

Answer: The concrete material may NOT be crushed and left on-site. All will need to be taken off-site and disposed. You will be required to provide the dump receipts to the

COR.

10. Question: Will the sign in sheet be available from the site visit?

Answer: The on-site Contracting Officer Representative will provide a sign in sheet to the contracting officer with the names of those companies who attend the site visit.

11. Question: How much room will you be allowed for dismantling/falling the elevated water tower?

Answer: The tower has some trees surrounding it on all sides. There is a chain link fence surrounding the tower that is to be removed in this project scope of work. That fence is approximately 75LF and resides approximately 20 feet from the tower on each side. All space inside the current footprint of the chain link fence is certainly available for dismantling and falling. Additionally, there is an opening on at least one side of the water tower that is facing an open field and that could be used as another possible direction to fall the tower. A site visit will help you tremendously with understanding the layout of the property and surrounding trees.