Attachment 7 - Additional Questions and Answers - 70Z03825QK0000011.pdf

70Z03825QK00000011 – Questions and Answers

1. USCG will provide an electrical disconnect up to 10’ of the equipment installation location to accommodate system with the maximum power required to properly operate the equipment. Is the run of power a straight horizontal run or do we have to bridge over a 10’ aisleway?

USCG Answer: Answer: USCG will provide an electrical disconnect next to Exposure room on North wall next to current computer drop/ outlet to accommodate the system with the maximum power required to properly operate the equipment.

Follow up question: Please confirm conduit will not have to be run overhead, over an aisle?

USCG Answer: There will not be any overhead conduit ran overhead of an aisle.

2. The Contractor shall ensure their employees are made aware that the performance of these services will occur in industrial areas. The industrial complex at ALC has the potential to expose workers to hazardous materials, which may include, but is not limited to hexavalent chromium, cadmium, beryllium, lead and others. Areas where exposures are expected to exceed the permissible exposure limits set by 29 CFR 1910 Occupational Safety and Health Standards, Subpart Z - Toxic and Hazardous Substances are clearly marked as regulated areas. There may also be contact hazards with these materials during cleanup of dust, metal shavings, etc. The Contractor shall ensure proper protective measures are taken to ensure contracted employees are protected from these hazards, including the use of personal protective equipment. While working in regulated areas where the exposure to hazardous dust is expected, the USCG recommends, at a minimum, the use of Powered Air Purifying Respirators (PAPR) with a protection factor of 1000 when exposure levels may reach the OSHA permissible exposure levels. Are you saying we have to have the Powered Air Purifying Respirators to install the vault based on the environment?

There is nothing in our installation that would require this. Please clarify.

USCG Answer: This is a blanket statement for the USCG Base that if there are areas or operations that either the contractor may be exposed to or the work to be done will expose them then they would have to follow the regulations as stated above.

Follow up question: Please clarify, we do not need Powered Air Purifying Respirators in the course of our installation. That being said, if you are saying we may need it based on other unknown environmental exposure then we need to price in costs for Powered Air Purifying Respirators and additional installation costs

USCG Answer: I spoke with the ALC SEHO Industrial Hygienist and their results state there is no levels of Hex-Chrome that would required Air Purified Respirators. If there is no work being performed by the contractor that would induce harmful levels then there is no requirement either.

New Question: Is this vault going to be installed at the od vault location or a new location?

If it’s a new location, can you confirm the site is accessible by forklift?

USCG Answer: The area is a blank area with plenty of head room and floor space for a forklift to be use to install panels to construct the Exposure Room.

70Z03825QK00000011 – Questions and Answers

3. Is the tube stand fixed in the corner, or does it move along a vault wall?

USCG Answer: The tubehead stand is mounted in the corner of the vault. The swing for the stand and rail will allows us to shoot almost all around the vault and distances and angles needed.