36C24718R0120-00001002.pdf

American Tank Maintenance

Carl Vinson VAMC

Washout Inspection Report

March 18, 2015

250,000 Facility Tank

Prepared For:

Daniel Knight

Prepared By:

Mike Lewis

Date:

March 20, 2015

36C24718R0120 00001

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General Information

INTRODUCTION

On March 18, 2015 American Tank Maintenance (ATM) performed a washout inspection of the 250,000 gallon elevated Facility Tank owned by the Carl Vinson VAMC.

250,000 GALLON ELEVATED -FACILITY TANK

Date Inspected March 18, 2015

Inspector Doug Byrd, Garrett Dupree

Capacity 250,000 Gallons

Style Elevated

Construction Material Riveted

Height 78 feet to low water level

Year Built 1943 - R.D. Cole

EXTERIOR COATINGS

The exterior surfaces are coated with an alkyd coating system. The adhesion is good on all areas tested. The coating system averaged 12-21 mils DFT in all areas tested. This coating sytem has begun to experience chalking.

INTERIOR COATINGS

The interior surfaces are coated with an epoxy coating system. This coating system has reached the end of its useful and protective life. Multiple areas of blistering and delamination were noted. This coating system is no longer protecting the steel substrate from continued corrosion.

Steel loss will occur. This coating system averaged between 20-28 mils DFT in all areas tested.

SAFETY

This tank has a notched tube safety climb system installed on the access ladder as well as a cage.

This safety climb system is in good condition and functioning as designed. There is a notched tube safety climb system on the dome ladder.

SANITARY

The roof hatch is a square "shoe box" design and was closed and locked. The vent and screen are in good condition. The over flow has a screen in place.

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STRUCTURE

The tank is structurally sound and no defects were noted. Anchor bolts are tightened and in good condition. The wind rods and riser rods are in good condition. All connection points for struts, wind rods and riser rods are in good condition.

SECURITY

The tank is located within a fenced - in area.

RECOMMENDATIONS

• Renovate Interior Surfaces

• Monitor Exterior Surfaces During Annual Inspection - Renovation recommended with 2-

3 Years to allow Over Coating

• Continue to Washout Tank Every Two Years

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250,000 Gallon Elevated - Carl Vinson VAMC

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Photo #1 Exterior

Photo #2 Leg, Foundation, Antenna Install

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Photo #3 Over Flow with Screen

Photo #4 Riser and Riser Manway

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Photo #5 Access Ladder

Photo #6 Legs, Struts, Wind Rod & Riser Rod Connections

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Photo #7 Legs, Struts, Wind Rod & Riser Rod Connections

Photo #8 Tank Bowl and Underside of Catwalk

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Photo #9 Tank Side Wall and Catwalk

Photo #10 Dome Ladder and Tank Side Wall

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Photo #11 Catwalk- Note Antenna Installation Blocking Passage

Photo #12 Catwalk - Note Antenna Cable Blocking Passage

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Photo #13 Exterior Roof

Photo #14 Roof Vent

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Photo #15 Interior Floor Prior to Washout

Photo #16 Interior Floor After Washout

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Photo #17 Interior Roof

Photo #18 Interior Side Wall - Note Corrosion Forming Along Steel Substrate

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Photo #19 Interior - Note Coating Delamination

Photo #20 Interior - Note Blistering and Corrosion Forming

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Photo #21 Interior - Note Blistering

Photo #22 Roof Hatch Closed - Locked

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