Questions_and_Answers_0001.pdf

140P5424R0009 08/19/2024

Replacement of Wastewater Treatment Plant

QUESTIONS/RESPONSES

Dry Tortugas National Park

1.What is the daily flow from the sewer plant?

Response: Average Daily Flow 800 GPD, with peak daily flows of 1200 GPD.

2. Do the open trenches for the gravity, force main and electric need to be covered at night or are barricades with the yellow tape sufficient?

Response: Yes, all open trenches must be covered. Temporary barricades at reasonable intervals with yellow tape will be required.

3. Can a temporary septic system be used in lieu of a temporary sewer plant if it meets the effluent standards?

Response: No

4. Do we need to use a floating silt barrier for the demo of the septic tank and pipe at the water line?

Response: No, A floating silt barrier will NOT be required for this project.

5. Is the period of performance and completion date of 02/28/2025 listed in the solicitation firm?

Response: The stated period of performance completion date is 02/28/2025 but may be revised only by the contracting officer under extenuating circumstances.

6. Are we required to have a certified operator for the sewer plant during the temporary plant in service?

Response: Yes, a minimum Class C certified operator is required.

7. Will the MV Fort Jefferson be provided for transportation of materials and equipment?

If so, what is the weight capacity of the crane and total capacity the vessel can carry?

Response: NO, the MV Ft. Jefferson is NOT available.

8. What is the weight capacity on the bridge leading to the fort entrance?

Response: The maximum load capacity is 6 tons. All contractors shall ensure all materials, equipment and vehicles etc. used for completing the work can adequately access the Sally Port entrance, the dock and associated decks, and the Sally Port Bridge without causing any damage to the Fort or its surroundings.

9. Does removed vegetation need to be hauled out disposed of outside of Dry Tortugas

National Park?

Response: Yes.

10. What is the maximum crew size allowed for housing purposes at Fort Jefferson?

Response: Depending on availability, coordination and approval by Park Officials, Fort Jefferson has the ability of housing between 6 - 10 people max.

11. Is the contractor responsible for the restoration of pavers on the path after tie-in?

Response: Yes. Contractor shall be responsible to provide protection of vertical or horizontal historic fabric during the period of performance.

12. Does the Park have lodging accommodations for our employees during the work week?

Response: Yes, refer to response for Question No. 10.

13. Are fuel tanks allowed at the Park staging area? If not, please provide the location for fuel cells.

Response: Yes, however it MUST HAVE SECONDARY CONTAINMENT.

14. The Park has designated two borrow areas. Is the onsite borrow suitable for backfill of pipes and structures?

Response: Yes, the designated borrow areas specified in the final 100% A/E construction documents is suitable for backfill.

15. Will ground protection (plywood, plates, etc.) be required while moving equipment around the site to perform the work?

Response: Yes, the contractor will provide temporary ground protection before commencement of the work. Park officials will assist in determining protection placement location once solicitation is awarded. Main areas of concern for ground protection are at main dock, dock decking, main bridge surface, Sally Port entry and pedestrian brick walking path.

16. Is bypass piping allowed to be located above ground?

Response: Yes, if it is not in a public area or a tripping hazard in an area used by pedestrians.

17. Are there specific days and time frames a barge may come to the site? If so, please provide the days, time frames, and the location for loading/unloading.

Response: A barge can use the beach area used by the seaplanes and dinghy’s. The barge must yield when seaplanes are approaching. Seaplanes arrive at 8:30AM and every two (2) hours thereafter through 4:30 PM, 7 days a week. Seaplanes depart approx. on the top of the hour. Cargo ship may use the MAIN GOVT DOCK when the Ferry is not on-site. MAIN DOCK Working hours are 7AM – 10 AM and 3PM -7PM.

18. The dewatering specification states, “excavations are made to final grade in the dry”. Please provide the location for groundwater discharge from dewatering activities.

Response: Ground water can be discharged on to adjacent turf areas if it does not damage any property, interfere with operations, or cause a nuisance.

19. Please confirm concrete encasement of below ground piping will not be required.

Response: No, concrete encasement is NOT required.

20. There are several proposed items of work that will be constructed prior to onsite arrival for installation; Temp Wastewater Plant, Lift Stations, Permanent Wastewater Treatment Plants. With that said, may the Treatment Plant Decking, Stairs, Railings, Cabinetry, Millwork, Countertops, Shelving, Lift Station Gazebo, etc. be constructed offsite and transported to the park for installation?

Response: Yes, most of the proposed items contained in the project scope will be permitted to be pre-assembled with park approval prior to on-site arrival.

21. Does the Park have a map of existing underground utilities? If so, please forward.

Response: See provided drawing.

22. Please provide a list of trades craft that the Park currently utilizes: Plumbers, Electricians, Millwork, Waterway Barge Transportation, etc.

Response: NPS will not provide list of trades. No labor provided by GOVT.

23. Will the park handle the sludge removal and if not do you have a point of contact for the company that is used?

Response: No, GOVT will not provide any sludge removal. GOVT will provide list of companies to consider.

24. What will the main dock hours of availability be for the contractor?

Response: See Question 17 response.

25. Will the government be able to help move some of our equipment and materials?

Response: Possibly, in LIMITED SITUATIONS on Garden Key with advance notice. Contractor should have sufficient equipment and labor on-site to execute and complete the work.

26. What are the dock and bridge load limits on site?

Response: The load limit for the dock and associated ramps is a single axle load of 6 tons.

27. Will NTP be issued after all materials are available to be shipped?

Response: The Notice to Proceed will be issued when the contractor is ready to mobilize to the construction site.