36C25219B0001-0003007.pdf

Facility

Management

Service (FMS)

VAIHCS

Building Number:

Project Number:

Drawing Number:

Dwg. of

DrawnCheckedDate:

Location:

Project Title:

Drawing Title:

CONSULTANTS: ARCHITECT/ENGINEERS:

Approved (Chief, FMS):

Troy Martinson, PE, DBIA

Revisions:

Date

VA FORM 08-6231

VA ILLIANA Health Care System

Engineer: Troy Martinson, PE, DBIA

Designer:

Emergency Repairs to

Water Tower #71 (North)

Approved (Superintendent/Projects Chief):

Ken Adams/Mark Shoviak

GENERAL NOTES

G-003

3 3

550-19-102

8-4-2018

VA Illiana HCS, Danville, IL

TJM

MS

BID DOCUMENTS

GENERAL NOTES:

WATER STORAGE TANK AND RESERVOIR #71 (NORTH)

A. BASE BID - Performance Period is 135 Days:

TASK #1: Tank Foundation Clean Out : Clean any dirt, debris and other loose gravel away from the tank foundation, down to a minimum of 6" below top of foundation, per NFPA 22-2013; 12.3.1.

TASK #2: Tank Foundation Repair: Removal all dirt, debris and loose gravel from the foundations, repair any cracks and spalling in the concrete with non-shrinking grout and seal the foundations with a sealant.

TASK #3: Tank Foundation Caps: Remove all dirt, debris and loose gravel from top of the pier, clean all spalling by scarifying the foundation down to solid material, drill holes for reinforcing bars, coat the solid concrete with a bonding agent, form and pour a new cap, then seal the foundation with a sealant. The contractor shall hire a licensed structural engineer to evaluate the condition of the foundation and submit professional engineered stamped shop drawings defining the foundation cap installation and repair work to be completed.

TASK #4: Lightning Protection and Grounding System: Install Lightning Protection and Grounding System, per OSHA 29 CFR 1926 (K), NFPA 780-2014, 5.4 Metal Towers and Tanks, and NFPA 70-2017. Contractor shall provide professional engineer design Sop

Drawings for approval in accordance with Section 01 33 23 Shop Drawings, Product Data and Samples.

TASK #5: Anchor Bolts: Clean area around anchor bolts, tighten anchor bolts to specifications, then weld around circumference of the nut-to-base plate connections and anchor plate-to-leg connection then tack weld the bolt-to-nut connections for preventive maintenance. Structural integrity of the anchor bolts shall be maintained to withstand 100 mph winds blowing from any direction as required by AWWA D100-11; 3.8: Anchorage.

TASK #6: Flapper Valve: Install flapper valves and new screen on the existing overflow pipe elbow, per AWWA D100-11; 5.3. The outlet shall be covered with a course, corrosion resistant screen equivalent to

" or larger mesh, or flap valve."

TASK#7: Climbing Guards: (A) Replace the cable type ladder safety climb device for fall protection with a lockable ladder guard. Install a Fall Protection required sign to being the ladder into compliance with OSHA 29 CFR 1926.1053(a). (B) Install climbing guards on all lattice legs.

TASK#8: Weep Holes: Drill additional weep holes in the balcony floor to prevent ponding of water.

TASK#9: Shell Manways: Install two(2) 30" shell manways 180 degrees apart. Install davit slides on both shell manways. Install "Confined Space Entry" signs, per NFPA 22-2013; 14.7.2 Shell Manholes, OSHA 1910.146 (c)(2) Confined Spaces.

TASK#10: Liquid Level Indicator: Replace existing liquid level indicator, per NFPA 22-2013; 14.1.8 Water-Level Gauge.

TASK#11: Riser Pipe: Replace (wet) riser pipe.

TASK#12: Balcony Railing System: Raise height of rigid railing system around outside of balcony from 38" to 42". Install intermediate rail complete with swing gate at the opening of the handrail at the junction of the tower access ladder and structural girder.

TASK#13: Name Plate: Remove name plate, clean the face, clean and repaint area behind the plate and remount it.

TASK#14: Interior Cleanout: Perform dry interior cleanout, up to 3" of sediment. Tank to be drained by VAIHCS.

TASK#15: Exterior Coating System: Apply coating system in accordance with "Section 02 83 33.13 Lead-Based Paint Removal and Disposal" and "Section 09 91 01 Elevated Water Storage Tank Repainting". (A) All exterior surfaces shall be abrasive blast cleaned to a commercial finish, removing all existing paint, rust, dirt, mill scale and foreign matter in accordance with SSPC SP-6. Establish lead control area by completely enclosing lead-based paint removal work area with containment screen enclosure. (B) Apply prime coat to dry film thickness of 2.5-3.5 mils. (C) Apply intermediate coat to a dry thickness of 2.0-3.0 mils. (D) Apply first finish coat to a dry film thickness of 2.0-3.0 mils. (E) Apply second finish coat to a dry film thickness of 2.0-3.0 mils. (F) Apply lettering and logos (2 EA) with two complete coats (180 degrees apart). VA Logos to be determined by VAIHCS prior to commencement of work.

TASK #16: Inteiror (Wet) Coating System: Apply coating system in accordance with "Section 02 83 33.13 Lead-Based Paint Removal and Disposal" and "Section 09 91 01 Elevated Water Storage Tank Repainting". Coating materials for interior surfaces of the tank must be certified to meet National Standard foundation, NSF/ANSI Standard 61 (NSF-61). (A) All surfaces shall be abrasive blast cleaned to a commercial finish, removing all existing paint, rust, dirt, mill scale and foreign matter in accordance with SSPC SP-10. Minimum angular anchor profile of 2.0 mils is required. Establish lead control area by completely enclosing lead-based paint removal work area with containment screen enclosure. (B) Apply prime coat to dry film thickness of 2.5-3.5 mils. (C) Apply stripe coat by brush only to all welded or riveted seams, edges of unseal welded or riveted roof plates, angles, and sharp edges. (D) Apply one intermediate coat to all surfaces, applied to a dry film thickness of 4.0-6.0 mils. (E) Apply one finish coat to dry film thickness of 4.0-6.0 mils.

B. DEDUCTIVE ALTERNATE BID #1: All work in the BASE BID minus the Exterior Coating System (Task #15) - Performance Period is 120 Days.

C. DEDUCTIVE ALTERNATE BID #2: All work in the BASE BID minus the Exterior Coating System (Task #15), and Interior Wet Coating System (Task #16) - Performance Period is 105 Days.

Amendment #001

18 Nov 2018

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