1 / 60

WELCOME

ABOVE GROUND STORAGE TANKS. CUSTOMIZED ENVIRONMENTAL TRAINING. WELCOME. INSTRUCTOR. Insert Instructor Name Here. OBJECTIVES. Define Above Ground Storage Tanks (ASTs) Discuss the Components of Above Ground Storage Tank Management Plans. Discuss Field-Erected Tanks.

issac
Download Presentation

WELCOME

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. ABOVE GROUND STORAGE TANKS CUSTOMIZED ENVIRONMENTAL TRAINING WELCOME

  2. INSTRUCTOR Insert Instructor Name Here

  3. OBJECTIVES • Define Above Ground Storage Tanks (ASTs) • Discuss the Components of Above Ground Storage Tank Management Plans. • Discuss Field-Erected Tanks. • Discuss Spill Prevention Control and Countermeasures. • Discuss Facility Response Plans. • Discuss What to do When a Spill Occurs. • Discuss Reports and Records. • Recommend Inspection Items. • Discuss Use of Contractors.

  4. GOALS • Understand the Definition of ASTs. • Be Familiar With the Components of an Above Ground Storage Tank Management Plan. • Understand the Spill Prevention Control and Countermeasures Plans. • Understand Facility Response Plans. • Understand What to do When a Spill Occurs. • Be Familiar With Required Reports and Records.

  5. BACKGROUND • EPA regulates under the Clean Water Act approximately 440, 000 facilities that have one or more above ground storage tanks. • Annually, 20,000 oil spills occur that are released to navigable waters. • On January 8, 2000 a one million-gallon bulk storage tank experienced a catastrophic structural failure releasing an estimated 882,000 gallons of fertilizer into the Ohio River.

  6. LEARNERS • Supervisors • Facility Engineers • Maintenance Personnel • Department Managers • Building Occupants • Process Specialists • Environmental and Safety Committees

  7. OVERVIEW The goal of this course is to provide supervisors with the tools needed to manage above ground storage tanks from leaking. It recommends practical, actions that can be carried out by facility management, maintenance personnel and building occupants. The course will help you to integrate good AST management activities into your existing organization and identify which of your staff have the necessary skills to carry out those activities.

  8. WHAT THIS COURSE DOES NOT DO The course is not intended to provide information to install, repair, calibrate equipment or remove ASTs. Nor is it intended to instruct how to write SPCC or FRP plans. These specialties required training beyond the intended scope of this course. Where this expertise is needed, outside assistance should be solicited.

  9. Clean Water Act, Section 311 Resource Conservation Recovery Act (RCRA) Superfund Amendments Reauthorization Act (SARA), Title III Oil Pollution Act (OPA) of 1990 Clean Air Act of 1970. GOVERNING ACTS FOR ABOVE GROUND STORAGE TANKS

  10. In many areas of the country, states delegate the regulation of above ground storage tanks to local fire departments. In regulating ASTs, fire departments often use the Uniform Fire Code, Section 79 and the National Fire and Protection Association (NFPA) Sections 30 and 30A. AST owners should find out the specific regulating guidance for their state. FIRE DEPARTMENTS

  11. Above ground storage tanks have 90 percent or more of their volume above the surface of the ground. This includes the tank, all connected piping, ancillary equipment, and containment system. Above ground storage tanks are 110 gallons or greater. Regulated tanks are tanks that contain petroleum or hazardous substances. (Not water tanks etc.) During this course, above ground storage tanks will refer to regulated above ground storage tanks. WHAT IS AN ABOVE GROUND STORAGE TANK?

  12. Tank and Piping Design and Construction Spill and Overfill Control Venting Tank Location Secondary Containment Associated Electrical Equipment Release Detection and Monitoring Fire Control/Emergency Equipment General Requirements Reporting Recordkeeping Training Inspections/Assessments COMPONENTS OF AN ABOVE GROUND STORAGE TANK MANAGEMENT PROGRAM

  13. Tanks and piping shall be designed and built in accordance with recognized good engineering standards for the material of construction, and shall be of steel or other noncombustible material. The material of tank and piping construction shall be compatible with the material to be stored. If an internal protective coating or lining is to be employed, it shall also be compatible with the material to be stored. Each tank shall be labeled, built, installed, and used within the scope of a nationally recognized standard. MATERIALS

  14. Corrosion protection can substantially increase the operating lifetime of the tank, as well as provide an additional level of safety and environmental protection against leaks. In General All tanks and piping subject to corrosion shall be properly protected to ensure leaks do not occur. This includes tanks and piping placed upon the ground, a pad, or any steel, masonry, or concrete foundation or pipe/tank stand, as this is the location at which accelerated corrosion is most likely to occur. CORROSION PROTECTION

  15. Internal Corrosion Protection If corrosion is anticipated beyond that provided for in the design, additional metal thickness or suitable protective coating or lining shall be provided to compensate for the corrosion loss expected during the design life of the tank and piping. External Corrosion Protection All tanks and piping subject to corrosion shall be, at a minimum, coated/painted to prevent corrosion For bunkered (half-buried) tanks, or tanks and piping in contact with the ground, cathodic protection is required in addition to coating/painting CORROSION PROTECTION

  16. Liquid shall not be dispensed from a tank by pressurization of the tank or by gravity flow. Suction pumps shall be located as close as possible to the operating equipment, since all piping downstream of the pump is considered pressure pumping. Means shall be provided to prevent the release of liquid by siphon flow. PUMPS

  17. To protect from spills and overfills associated with product transfer to and from the AST system, the following protection methods shall be used: In General Tank filling shall not begin until the operator has determined tank ullage (available capacity) based on direct liquid level measurement converted to gallons (or some equivalent method). Tank ullage and the amount transferred to the tank shall be entered into the tank records. The transfer operator shall be physically present to monitor the entire transfer process. SPILL AND OVERFILL CONTROL

  18. Tanks 660 gallons or greater: Fixed or movable equipment is required that will contain the release of product when i. the transfer hose is detached from the fill pipe ii. the tank is overfilled If not equipped with a hand operated nozzle, a check valve and shut off valve must be equipped. Tanks 660 gallons or greater & placed in service after 1994: Equipment is required that will automatically shut off flow into the tank when the tank is no more than 95% Equipment is required that will trigger an audible alarm when the tank is no more than 90% full. SPILL AND OVERFILL CONTROL

  19. Atmospheric tanks shall be adequately vented to prevent the development of vacuum or pressure which exceeds the design pressure of the tank as a result of filling, emptying, or atmospheric temperature changes. Normal Venting Should be in accordance with the American Petroleum Institute Standard No. 2000, Venting Atmospheric and Low-Pressure Storage Tanks, or another accepted standard; OR Shall be at least as large as the filling or withdrawal connections, whichever is larger, but in no case less than 1.25 inches. VENTING

  20. Vents shall be arranged to discharge in such a way as to prevent localized overheating of, or flame impingement on, any part of the tank, in the event vapors from the vents are ignited. For liquids having a flash point below 73°F and a boiling point below 100°F, a venting device that is normally closed except when venting to pressure or vacuum shall be installed. All vents shall have a spark arrestor cap. All vents shall be located "in the clear" at least 12 feet above the ground. VENTING

  21. All tanks shall have some form of construction or device that will relieve excessive internal pressure caused by exposure to fires. The following methods are allowed: Properly located valves, pipes, or blowout plugs Weak roof-to-shell seam Emergency relief venting capacity shall be in accordance with your state's storage tank regulations. EMERGENCY RELIEF VENTING

  22. Tanks shall rest on foundations made of concrete, masonry, or steel. The foundations shall be designed to minimize the possibility of uneven settling of the tank, and to minimize corrosion to any part of the tank resting on the foundation. TANK LOCATION

  23. Tanks and vents shall be located in such a way as to minimize the danger of fire from the following ignition sources: Open flames Smoking Hot surfaces, radiant heat Cutting and welding Frictional heat or sparks Lightning Static electricity, electrical sparks Stray currents TANK LOCATION

  24. Tanks shall be located in such a way as to minimize the hazards associated with venting, releases, and fire to: Buildings and their occupants (minimum distances required) Other tanks (minimum distances required) Roadways Pedestrian walkways Adjoining property (minimum distances required) Congested areas Waterways, streams, and ditches Tanks shall be anchored, as necessary for stability. TANK LOCATION

  25. Should there be a catastrophic or undetected AST leak, secondary containment provides added health and environmental protection. 1. Required for all ASTs larger than 110 gallons 2. All secondary containment areas or systems shall be maintained free of accumulations of water, leaves, weeds, flammable materials, tanks or drums, or anything else that may interfere with the containment purpose or visual detection of leaks or spills. SECONDARY CONTAINMENT

  26. 3. All secondary containment systems shall be: Impervious to the tank contents for at least 72 hours. Compatible with the tank contents Resistant to normal environmental conditions. Of sufficient strength and durability to resist tearing, cracking, collapsing, etc. for the tank’s lifetime. Easily maintainable Can contain 110% of the volume of the tank. Of sufficient size to contain all critical piping, fittings, and valves. SECONDARY CONTAINMENT

  27. 4.The following permanent or temporary containment systems are allowed, unless otherwise noted: Steel catchment basins or spill skids Masonry or concrete berms Earthen berms, only when used in conjunction with an appropriate liner or coating ‘Visqueen' or other non-reinforced plastic sheeting with a thickness of 40 mils (0.75mm) or less is NOT appropriate Secondary containment tanks (i.e. double-walled tanks or concrete encased tanks). These tanks (including associated piping and pumps) are exempt from containing 110% and containing piping and equipment. SECONDARY CONTAINMENT

  28. All electrical equipment shall be located to minimize the possibility of initiating a fire or electrocution hazard. All electrical equipment and wiring shall be in accordance with NFPA 70 (National Electrical Code). An Emergency Power Off (EPO) switch, or other suitable disconnect switch, shall be located near the electrical equipment, and this switch shall be labeled. All maintenance of the electrical equipment shall be conducted in accordance with the Lockout/Tagout Program. Provisions shall be made for the control of static electricity at installations where flammable or combustible liquids are transferred or dispensed. ASSOCIATED ELECTRICAL EQUIPMENT

  29. All tanks shall have a system that provides a method or combination of methods that can detect a release for any portion of the tank. This can be accomplished by the methods listed below: a. ASTs that are not in contact with the ground or any electrolyte shall be visually inspected at least once per month; b. For ASTs or their supporting structure in contact with the soil or an electrolyte, a biennial (every two years) leakage test and internal or external visual inspection of the bottom of the tank shall be completed in addition to the monthly inspection noted in (a) above. RELEASE DETECTION AND MONITORING

  30. Secondary containment tanks (i.e. double-walled tanks or concrete encased tanks) shall have an interstitial liquid detector (or other positive means of leak detection). The operation of the interstitial leak detector shall be verified at least monthly. Pop-up-type monitors are not subject to the monthly verification. RELEASE DETECTION AND MONITORING

  31. Permanent Tanks a. at least one portable standard NREL dry chemical fire extinguisher (minimum 4A60B:C rating) shall be within 25 feet of any tank containing a flammable or combustible liquid Portable tanks a. at least one portable fire extinguisher with a minimum 4A60B:C rating shall be within 25 feet of any tank containing a flammable or combustible liquid b. emergency information (location of nearest telephone, dialing instructions, who to contact, equipment owner/area landlord etc.) shall be placed between 10 and 50 feet from the tank FIRE CONTROL/EMERGENCY EQUIPMENT

  32. Tanks that are constructed on-site are considered "field-erected tanks." Regulated field-erected tanks must be internally and externally inspected according to American Petroleum Institute (API) standard 653. These inspections must be performed by a certified API 653 inspector. Most field-erected tanks must be externally inspected every five years and internally inspected every ten years. This inspection cycle may vary depending upon the condition of the AST. FIELD-ERECTED TANKS

  33. Facilities that meet both of the following conditions must have an SPCC Plan: 1. Own or operate a non-transportation related fixed facility that could be reasonably be expected to discharge oil into or upon navigable waters of the United States and 2. The facility has an above ground storage capability of More than 660 gallons in a single container, or A total above ground oil storage capacity of 1,320 gallons, or A total underground buried storage capacity of more than 42,000 gallons. SPILL PREVENTION CONTROL AND COUNTERMEASURES

  34. SPCC Plans must: Be kept onsite. Be certified by a Registered Professional Engineer (PE) Have full management approval. Conform with all SPCC requirements in 40 CFR Part 112 Discuss the facility’s spill history. Discuss spill prediction – (i.e. the direction of flow) Be reviewed every three years by management. Be amended when you change the facility and re-certified by a PE. SPILL PREVENTION CONTROL AND COUNTERMEASURES

  35. Under the Clean Water Act, all owners/operators of oil storage facilities are required to prepare a facility-specific response plan. This plan, to the maximum extent possible, is for responding to a "worst case discharge" of oil and to the substantial threat of such a discharge to the surrounding environment. Oil is defined as an oil of any kind or in any form, including, but not limited to, petroleum, fuel oil, sludge, oil refuse, oil mixed with wastes other than dredged spoil. FACILITY RESPONSE PLANS

  36. Substantial harm is determined by the amount of storage, type of activities, location and spill history of the facility. If any of the following applies to a facility, then they would be considered to pose substantial harm to the environment. A facility with a maximum oil storage capacity greater than or equal to 42,000 gallons and operations include over-water transfers of oil to or from vessels. A facility with a maximum oil storage capacity greater than or equal to one million gallons. A facility without secondary containment for each above ground storage tank large enough to contain the capacity of the largest above ground storage tank within that storage area. FACILITY RESPONSE PLANS

  37. A facility located at a distance such that a discharge from the facility could cause injury to fish, wildlife or the environment. A facility located at a distance such that a discharge from the facility would shut down a drinking water intake. A facility that has experienced a reportable spill in the past five years that was greater than or equal to 10,000 gallons. The U.S. EPA Regional Administrator has discretion to require an FRP from any facility. FACILITY RESPONSE PLANS

  38. Cover Sheet Emergency Response Action Plan Facility Information Emergency Response Information Hazard evaluation Spill scenario discussion Discharge detection systems information Plan implementation information Facility self-inspection checklists Diagrams for the site plan and the drainage plan Security systems description ELEMENTS OF A FACILITY RESPONSE PLAN

  39. Facility Response Plans are to be submitted to your area’s EPA Facility Response Plan coordinator. Each time there is a material change at an FRP facility, the facility must resubmit their plan for approval within 60 days. Examples of material changes include: - A significant change in facility capacity, configuration or type of oil handled; - A change in the capacity or availability of response contractors; or - A change in spill prevention equipment or response procedures that may affect the potential for a discharge. FACILITY RESPONSE PLANS

  40. 1. All tanks shall have a sign stating the tank contents and shall be marked in accordance with NFPA 704, Identification of Fire Hazards of Materials (commonly referred to as the "Diamond Hazard Rating" or "Hazardous Materials Classification Diamond") 2. Access to tank interiors are subject to the facility’s Confined Space Entry Program 3. Safe Operating Procedures or other written operating procedures shall be developed for all permanent tank operations. GENERAL REQUIREMENTS

  41. 4. During tank filling activities, the delivery vehicle shall be separated from the tank by at least 15 feet. 5. All tanks, machinery, and piping shall be grounded. 6. Means shall be provided to protect tank systems from vandalism to the greatest extent practicable (i.e. all fill and withdrawal openings that can be opened without hand tools shall be locked). 7. Spill control equipment such as booms, pads, and absorbents shall be provided by the tank operator, located near the tank, and available at all times. GENERAL REQUIREMENTS

  42. Be sure to record the following about the incident: Date, time, location and type of an incident; Name, quantity and source of material involved; Cause of an incident and name of the party involved with the incident; Measures taken to contain and cleanup the spill; Quantity and disposition of material resulting from cleanup; Measures taken to prevent recurrence. Severity and geographic area affected; IF A SPILL OCCURS

  43. Name of the facility; Name(s) of the owner or operator of the facility; Location of the facility; Date and year of initial facility operation; Maximum storage or handling capacity of the facility and normal daily throughput; Description of the facility, including maps, flow diagrams and topographical maps; The cause(s) of such spill(s), including a failure analysis of the system or subsystem in which the failure occurred; Corrective actions and/or countermeasures taken, A copy of the SPCC Plan and any other information pertinent to the Plan or the spill(s). SPILL INFORMATION TO REPORT TO EPA

  44. 1. Releases The National Response Center is the sole federal point of contact for reporting oil and chemical spills. If you have a spill to report, contact them at 1-800-424-8802or for those without 800 access, contact them at (202) 267-2675. REPORTING

  45. 2. New Tanks An application shall be submitted to and approved by the regulatory agency prior to construction or operation of tanks over 110 gallons. 3. Existing Tanks Modifications to tanks greater than 110 gallons which alter their type, location, capacity, or contents shall be registered with the regulatory agency. REPORTING

  46. 4. Change in Service Type The following service types are designated for all AST's. i. In Service—currently in use, all recordkeeping requirements apply ii. Out-of-Service—less than 90 days, tank shall be empty, all recordkeeping requirements apply. iii. Out-of-Service—more than 90 days but less than 12 months. iv. Temporary Closure—less than 24 months, tank must be empty, additional requirements apply. v. Permanent Closure—tank will no longer be used, tank must be empty. vi. Change-in-Service REPORTING

  47. Recordkeeping 1. Permits/Registrations/Plans a. A Spill Prevention Control and Countermeasure Plan (SPCC) shall be prepared and implemented when the total storage capacity of the site exceeds 1320 gallons, or when any single tank exceeds 660 gallons. This Program shall be written and implemented in accordance with 40 CFR 112. b. Tank registration records issued by the regulatory agency shall be retained until tank closure. c. A copy of all As-Built drawings and schematics for all tanks. These drawing should be retained for five years or the life of the tank, whichever is longer. RECORDKEEPING

  48. Recordkeeping 2. Monthly Monitoring/Inspection A monthly monitoring record shall be maintained for each AST. This record shall be completed and maintained by the facility responsible for the tank, and retained for a minimum of one year. RECORDKEEPING

  49. Recordkeeping 3. Modifications/Repairs Amended tank drawings or a synopsis of modifications or repairs to tanks and their associated equipment shall be retained by the facility. These documents should be retained for five years or the life of the tank, whichever is longer. RECORDKEEPING

  50. Recordkeeping 4. Ullage Records Records to document that tank ullage (available capacity) was properly checked prior to filling tanks shall be maintained. These records shall be completed and maintained by the owning organization responsible for the tank, and retained for a minimum of six months. RECORDKEEPING

More Related