staying in compliance inventory control bill greer gtec
TRANSCRIPT
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Staying in Compliance
Inventory Control
Bill Greer
GTEC
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Inventory Control and Tightness Testing
Regulatory Requirements:Inventory control can be used as a temporary method (10 years after new installation or upgrading an UST with Cathodic Protection) but it must be combined with tightness testing.
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Inventory Control and Tightness Testing
Regulatory Requirements:
Tightness testing when combined with Inventory Control as a Release Detection Method should be performed once every 5 years for 10 years. A monthly monitoring method (S.I.R., ATG, etc.) is required after 10 years.
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Inventory ControlRegulatory Requirements:
Must record:
Volume measurements for inputs and withdrawals.
Volume amount still remaining in the tank each operating day.
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Inventory ControlRegulatory Requirements:
Must be capable of:
Measuring the product level over the full range of the tank’s height.
To the nearest 1/8 inch.
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Inventory ControlRegulatory Requirements:
Inputs:
Inventory must be measured before and after delivery.
Reconciled with delivery receipts.
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Inventory ControlRegulatory Requirements:
Deliveries must be made through a drop tube that extends to within one foot of tank bottom.
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Inventory ControlRegulatory Requirements:
Product dispensing must be metered and recorded within local standards.
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Inventory Control
Regulatory Requirements:
Must check for water once a month to the nearest 1/8 inch.
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Inventory Control
Inventory Control Considerations:
Use an accurate tank chart and a good quality tank stick.
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Inventory Control
Inventory Control Considerations:
Use the correct forms.
Daily Inventory WorksheetMonthly Inventory Record
(or use your ownComputer Generated Forms)
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Forms can be found in:
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Web Site to Download Inventory Publication
• http://www.epa.gov/oust/pubs/doing.htm
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Inventory Control
NOTE:
If your reconciliation is not within the allowable limits for 2 consecutive months, you must notify your regulatory agency ASAP that your tank may be leaking (suspected release).
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Inventory Control
If the overage or shortage is greater than or equal to 1.0 percent of the tank's flow-through volume plus 130 gallons of product, the UST may be leaking.
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Inventory Control
Example:
Monthly thruput = 10,000 gallons:
1% + 130 gallons =
100 + 130 = 230 gallons
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THE
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