Attachment__7_-_FA4418-17-R-0003_Addendum__1_dated_12_Jan_17.pdf

Attachment #7 FA4418-17-R-0003

ADDENDUM #1

Repair/Add IMC Fire Suppression System

DKFX 11-1005 A/B

Joint Base Charleston, SC

12 January 2017

1. Delete: A portion of the work on this project has already been completed, namely installation of the fire main between the southwest corner of building 700 and the 20" PVC stub out and plug that can be found approximately 70 feet from the north east corner of building 551, and 70 feet from the south east corner of building 700.

2. Add: Drawing FP-102, “Fire Pump General Notes,” add new note 22 to read: “Upon completion of work on building 516, existing windows are to be replaced with non-opening, double pane windows. All lighting and the existing vent on the south end of the building is to be replaced, and all interior walls, and the interior side of each of the two doors, are to be abraded down to base material, and painted to the requirements of SSPC QP 1. The primer, intermediate coat and topcoat, shall be manufactured by one manufacturer. Primer shall be zinc-Rich Epoxy Primer, TT-S-00230, Type II, Class B Primer. The intermediate Coat shall be Epoxy polyamide, MIL-DTL-24441/19 (Formula 159, Type III) Epoxy. The topcoat shall be epoxy polyamide, MIL-DTL-24441/31 (Formula 152, Type IV, tinted to FED-STD-595B, flat, Air Force Beige, color number 27778, Polyurethane, except interior side of each door shall be dark gray, to match existing color. Apply primer/paint with rollers, brushes or a method that does not create airborne particles of paint. No spray painting is allowed unless the component and the painter are fully contained, allowing no over-spray.

Abrading of existing paint should also be contained to prevent dust from escaping the building. New lights are to be located so as to provide superior lighting for repair/maintenance/inspection of each of the four electric motor driven fire pumps. This work has been added to this project.

3. Delete: A Transfer Switch is no longer necessary since the Diesel Generator backup was removed from the design. The Transfer Switch has been removed from this project.

4. Add:

a. In lieu of providing a new 20"x18"20" PVC Tee to connect the new 18" fire main (Pipe 4A) to the new 20" fire main (Pipe 1G) at STA 17+38.3 (Sheet CU-102), provide a 20"x18"20" Ductile Iron flanged wye reducing lateral followed by an additional new 18-inch 45 degree Ductile Iron elbow.

b. In lieu of providing a new 20"x16"20" PVC Tee to connect the new 16" fire main (Pipe 2A) to the new 20" fire main (Pipe 1E) at STA 8+83.6 (Sheet CU-101), provide a 20"x16"20" Ductile Iron flanged wye reducing lateral followed by an additional new 16-inch 45 degree Ductile Iron elbow.

c. In lieu of providing a new 20"x20"20" PVC Tee to connect the new 20" fire main (Pipe 3A) to the new 20" fire main (Pipe 1F) at STA 9+46.1 (Sheet CU-101), provide a 20"x20"20" Ductile Iron flanged wye lateral followed by an additional new 20-inch 45 degree Ductile Iron elbow.

d. In lieu of providing a new 10"x18"10" PVC Tee to connect the existing 10" fire main (Pipe 4) to the new 18" fire main (Pipe 4C) at STA 7+23.3 (Sheet CU-105), provide a 10"x12"10" Ductile

Attachment #7 FA4418-17-R-0003

Iron flanged wye lateral followed by an additional new 18-inch to 12-inch PE reducer, followed by an additional new 18-inch 45 degree Ductile Iron elbow.

e. In lieu of providing a new 20"x20"20" PVC Tee to connect the new 20" fire main (Pipe 3G) to the existing 20" fire main (Pipe 3) at STA 11+80.9 (Sheet CU-104), provide a 20"x20"20" Ductile Iron flanged wye lateral followed by an additional new 20-inch 45 degree Ductile Iron elbow.Replace Five PVC Tees with ductile iron pipe Tees on Drawings CS-102, CS-402, and

CS-403.

5. Add: Replace existing 50A fuses in switch 'SW-C7' with 200A fuses in lieu of the 300A fuses as shown on the drawings.

6. Delete: Specification section 01 20 00 0.0020, Price And Payment Procedures.

7. Delete: Spec 33 16 15, Water Storage Steel Tanks, para 3.5.4

8. Add: Specification 33 16 15, Water Storage Steel Tanks, para 1.2.5, first sentence, after SSPC QF 1 change the wording from "and" to "or"

-End-