Best Practices for General Aviation Aircraft Fuel-Tank Sampling (2014) / Chapter Skim
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AIRPORT COOPERATIVE RESEARCH PROGRAM Sponsored by the Federal Aviation Administration Responsible Senior Program Officer: Theresia H Schatz July 2014 C O N T E N T S Introduction, 1 Objective 1 -- Quantity Estimate, 1 Discarded Fuel -- Fate, Environmental Implications, and Applicable Regulations, 4 Current State of the Practice, 7 Objective 2 -- Best Practices, 9 Conclusions and Suggestions, 14 References, 15 • Objective 2 -- Develop a variety of airport and aviation best practices of aircraft fuel-tank sampling to prevent contaminants from entering the stormwater runoff system.
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2arrive at the estimate. The following sections provide an overview of the process and the resulting quantity estimate.
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3number of GA operations per year (from Federal Aviation Administration [FAA] database)
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4review. The 3-million gallon value appears to be overestimated for the following reasons: • Overestimate of Sump Quantity -- A perflight sump quantity of 8.5 liquid ounces, or about 250 mL, was used.
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5Primary Fate and Transport Mechanisms Once discarded to the ground surface, avgas can degrade, persist, or move in the environment in a number of ways. The primary fate and transport mechanisms are summarized below: Evaporation/Volatilization.
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6federal, state, and/or local level and can be quite complex and subject to interpretation. The following sections provide an overview of potentially applicable regulations and how they may impact GA fuel sampling practices.
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7ship or boat of any kind, shall report the incident immediately to the administration." (Taylor GeoServices, Inc., unpublished work, October 2006)
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9observations also revealed that few pilots sump their tanks following refueling. No observations of fuel vent leakage or tank overfilling were witnessed.
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10 Table 2 Summary of field observations. Date Time Annual Operations (airnav.com)
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11 Specifically, the EPA provided proposed and final rule language (22, 23) from a recentlypromulgated misfueling regulation pertaining to ethanol-containing fuel (E15)
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12 approved storage cabinet, per OSHA. Other physical best practices may include stormwater management features constructed as part of an airport's stormwater management and control infrastructure.
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13 Table 3 Summary of example stormwater control measures. Stormwater Control Measures (SCMs)
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14 implemented as part of primary flight training and this movement should be capitalized on and re-enforced moving forward. • Aviation Associations -- Associations such as AOPA, Civil Air Patrol, and numerous others should disseminate (or continue to disseminate)
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15 REFERENCES 1. SurveyMonkey® (2013)
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16 21. Federal Aviation Administration (2006)
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Subscriber Categories: Aviation • Environment These digests are issued in order to increase awareness of research results emanating from projects in the Cooperative Research Programs (CRP)
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