Tank Inspection and Maintenance Leo Yuskus, Senior VP Haley and Ward, Inc. WHY IS THIS IMPORTANT

Slight Deterioration in Coating System Haley and Ward, Inc.

Previous Inspection Intervals Routine Inspection Schedule Routine Inspection Schedule Coating System Showing Signs of Deterioration or Corrosion Evident Coating System Showing Signs of Deterioration or Corrosion Evident Sampling Indicates Elevated Background Bacteria in Tank or System Sampling Indicates Elevated Background Bacteria in Tank or System Sampling Indicates Coliform Bacteria in Tank or System Sampling Indicates Coliform Bacteria in Tank or System Haley and Ward, Inc.

MassDEP Guidelines & Policies Chapter 8 Monthly Inspections Monthly Inspections Annual Inspections Annual Inspections 3-year to 5-Year Inspections 3-year to 5-Year Inspections Haley and Ward, Inc.

Advantages of New Inspection Requirements Early Notice of Particular Conditions that Need Attention Early Notice of Particular Conditions that Need Attention Allows for Planning of Rehabilitation and the Raising of Funds Associated Allows for Planning of Rehabilitation and the Raising of Funds Associated Reduces the Potential for Contamination Reduces the Potential for Contamination Maintenance becomes Pro-active rather than Re-active Maintenance becomes Pro-active rather than Re-active Haley and Ward, Inc.

Undesirable Conditions Commonly Found During Inspections Most Faults on Tank Roofs are Damaged or Detached Finial (vent) Screens Most Faults on Tank Roofs are Damaged or Detached Finial (vent) Screens Corrosion Openings in the Roof Area Corrosion Openings in the Roof Area Erection Fabrications not Properly Covered Erection Fabrications not Properly Covered Cathodic Protection Covers not Properly Covered Cathodic Protection Covers not Properly Covered Haley and Ward, Inc.

Finial Vent Screen Haley and Ward, Inc. Screen Detached

Finial Vent Screen Haley and Ward, Inc. Inadequately Mounted Screen

Finial Vent Screen Screen Damaged

Finial Vent Screen Haley and Ward, Inc. Dome Cover Completely Missing

Opening not Plugged in Roof Opening not Plugged in Roof Haley and Ward, Inc. No Threaded Plug Installed in Roof

Opening not Secured in Roof Opening not Secured in Roof Haley and Ward, Inc. Cathodic Protection Cover not Secured in Roof

Corrosion Openings Haley and Ward, Inc. Corrosion Opening at Roof Finial Collar

Corrosion Openings Haley and Ward, Inc. Corrosion Opening at Finial Ball to Roof Plate

Corrosion Openings Haley and Ward, Inc. Corrosion Opening at Shell to Roof Plate

Improperly Constructed Roof Hatch Haley and Ward, Inc. Roof Hatch with No Collar

Why is Follow-Up Maintenance Important Eliminate Potential for Contamination from Birds Entering Tank Eliminate Potential for Contamination from Birds Entering Tank Eliminate Potential from Bird Droppings being Washed into Tank with Rain Water Eliminate Potential from Bird Droppings being Washed into Tank with Rain Water Haley and Ward, Inc.

Why is Follow-Up Maintenance Important Haley and Ward, Inc. Commonly Found Bird Droppings on Roof

Why is Follow-Up Maintenance Important Routine Maintenance Will Extend the Life of the Coating System Routine Maintenance Will Extend the Life of the Coating System Rehabilitate the Coating System before it Becomes Necessary for Complete Removal and Replacement Rehabilitate the Coating System before it Becomes Necessary for Complete Removal and Replacement Haley and Ward, Inc.

Why is Follow-Up Maintenance Important – Cost Savings Spot Coating Rehabilitation Costs can Normally Range From $30,000 to $120,000 Spot Coating Rehabilitation Costs can Normally Range From $30,000 to $120,000 Complete Removal and Recoating Costs can Normally Range from $350,000 to $750,000 Complete Removal and Recoating Costs can Normally Range from $350,000 to $750,000 Haley and Ward, Inc.

Why is Follow-Up Maintenance Important – Cost Savings Coating and Welding Repair for this 1.0 mg Tank Bid last Month was $1,600,000 Coating and Welding Repair for this 1.0 mg Tank Bid last Month was $1,600,000 Haley and Ward, Inc.

Inspections and Proper Maintenance will Prevent this from Happening to Your Tank Haley and Ward, Inc.

Leo Yuskus, Senior VP Haley and Ward, Inc THANK YOU Tank Inspection and Maintenance