Amendment_0003_-_70Z0G119BAB060100_Page_2_to_3.pdf

70Z0G119BAB060100

Amendment 0003

Install Standby Generators, USCG AIRSTA Borinquen

02/07/2019

RESPONSES TO RFI QUESTIONS:

51Q: Sheet E503, Wiring Details III- sheet doesn’t have AC breakers; please confirm that

Type C1 & C2 units have air conditioners.

51A: Yes-Refer to Amendment 002; Update and Clarification note 4

52Q: Question on clarification #5 from Amendment 0002: Contractor shall add New

Electrical Keynote #9 to Sheet E-503, it should read E-504?

52A: Yes, change E-503 to E-504. See also clarification #1 below for Sheet E-504, (Wiring

Details IV).

53Q: In the drawings indicates Manual Shut off valve but in theory indicates Automatic shut off valve; Please indicate which one would apply since the difference in cost is great.

53A: Refer to Specification Section 26 32 13 Part 1.1.5.

54Q: Confirm the number of regulators, when saying primary we understand is one per tank.

54A: Refer to Specification Section 26 32 13 Part 1.1.5.

55Q: Confirm the diameter of the line; we understand it must be ¾"

55A: Refer to Specification Section 26 32 13 Part 1.1.5.

56Q: Will the government owned electric power install new government provided electric meters and make final service connections?

56A: Contractor shall salvage and re-install existing meters into new meter base per plans and all connections the responsibility of the contractor.

57Q: What is the nearest port for cargo delivery?

57A: The delivery of materials to the work site is the responsibility of the Contractor. The

Government will not provide cargo port information.

58Q: What percentage of houses are occupied?

58A: The percentage of houses occupied varies. The Contractor shall be required to perform work on both occupied and unoccupied buildings. See response to Question 37

(Amendment 0002) for coordination information.

59Q: Amendment 002, 45Q requests for the type of underground propane line shall be used for the gas installation (NUG). Answer refers back to Question 19. Question 19 answers requirements for submitting the bid and submission of a bid guarantee. Can a specification be provided for the NUG piping?

59A: See response to Question 39 (Amendment 0002)

60Q: Will soil testing results for the areas that will be worked on be provided to verify if it is a rocky terrain?

60A: No

61Q: Do we have to comply and with the required research in excavation areas noted in

011100, 1.1.2.1

a. 1.1.2.1 Contractor shall use electromagnetic conductivity and ground penetrating radar and to identify, map and mark existing underground utilities and obstructions prior to digging.

The ground shall be clearly marked; any areas where markings cannot be identified by the

COR shall

b. require re-marking prior to digging.

61A: Yes

62Q: During the site visit we identified some areas were the minimum spacing required in the specifications will be hard to meet when installing generators, gas tanks and gas lines due to short distance between fencing and homes and also electrical pole lines that are close to some homes. What will be done in these cases?

62A: Bid plans and specifications.

63Q: Do we have to comply with the testing to electrical lines stated in section 337102, 3.9.1b?

b. Electrical Tests Perform insulation resistance tests on wiring No. 6 AWG and larger diameter using instrument which applies voltage of approximately 1000 volts dc for one minute. Perform continuity tests to insure correct cable connection.

63A: Yes

64Q: The homes and equipment schedules on the project documents have home B-067 repeated on both the Base Bid Table and Additive Bid #5. Has this been revised?

64A: Delete unit B-067 Hook Road from Base Bid Housing Units shown on Drawing Sheet

G-101. This unit hall remain part of Additive Bid Item #05 (also shown on Drawing

Sheet G-101).

UPDATES/CLARIFICATIONS TO THE DRAWINGS:

1. Sheet E-504, (Wiring Details IV): Detail A1 shows a Keynote 9 symbol but there is no

Keynotes associated with the symbol. Contractor shall add New Electrical Keynote #9 to

Sheet E-504 stating the following: "Install a stainless steel wireway between the new meter base and transfer switch. Use the NEC 10 foot tap rule to connect the existing two (2) 50A, 2-pole Air Conditioning circuit breaker panel conductors in the new wireway to the residential load center feeder conductors in strict accordance with NEC Article 240. The intent is for the air conditioning circuits to have back up power provided by the new standby generator. Size wireway, conduit and conductors in strict accordance with the 2017 National

Electrical Code.