Questions and Answers Mine Waste NIOSH Pittsburgh.docx

QUESTIONS and ANSWERS #1- 02/18/2020 – Mine Waste NIOSH Pittsburgh

1. Q: Are there any current disposal profiles or waste steams available for review. (active or historical)?

No.

1. Q: Assume 1 profile will suffice for the 12 month period of T&D?

1 profile from date of award to 9/30/2020.

1. Q: Historically has the generated waste gone to a municipal landfill vs subtitle D landfill? Subtitle D landfills include municipal solid waste landfills.

1. Disposal Container: stated liquid tight container.

Q: Will the shipping container require a locking roll top or tarp?

Either is acceptable.

Q: Will the container be exposed to the outside elements?

Yes

1. Period of performance states upon award of a purchase order and shall be completed no later than September 30, 2020. SOW states 400 tons of coal mine debris generated during a 12-month period

· For bidding purposes assume 7 months or 12?

Yes, POP ends 9/30/2020.

1. Statement of Work mentioned “4 tons dumpsters to contain at least 4 tons of coal mine debris to be removed and replaced within 3 work days of request” Q: To be cost effective on transportation can a 20cy container be placed (average 18 Ton per shipment) to be replaced within 3 work days of request?

Yes.

· This would be a significant cost difference for transportation. Below based on 12 months

· 400 tons at 4 tons per trip is 133 trips, average 11 per month

· 400 tons at 18 tons per trip is 22 trips, average 1.85 (2) per month

1. Signing of waste profiles, shipping documents:

Q: Will CDC EH&S office be responsible for review, acceptance and bill of lading / manifest?

CDC EH&S will review and sign the bill of lading/manifest prepared by vendor.

8. Is there a prior contract that included similar services to Solicitation 75D301-20-Q-71315? Is so, what is the contract number, period of performance, and contract value?

No prior contract.

9. What is the approximate weight of 1 cubic yard of the Coal Mine Debris that will be removed under the contract resulting from Solicitation 75D301-20-Q-71315?

Approximately 1000 lbs.

10. Is the Coal Mine Debris currently stored outside or inside?

Will be an ongoing removal process from the mine directly to dumpsters.

11. Do the supplied containers need to have a cover?

Yes.

12. If a cover is needed, will NIOSH approve the use of a tarp that is designed for use with roll off containers?

Yes.

13. Are any of the components in the Coal Mine Debris considered Special Waste or Hazardous Waste?

See components of waste stream and approximate percentages Concrete blocks 8% Wood 6% Cement gunite 12% Dirt 45% Sand 2% Plastic 1% Coal 20% Limestone dust 5% Mine Brattice 1%