Washing of Aircraft Equipment and Vehicles

RDURALEIGH-DU RHAM AIRPORT AUTHORITY
1000 Trade Drive ' PO Box 80001 ' RDU Airport, NC 27623
John C. Brantley, Airport Director tel: [phone] - tax: [phone] - www.rdu.com
May 28, 2009
AIRPORT DIRECTIVE 06-06
To: All Airport Tenants
From: John C. Brantley
Airport Director
Subject: Washing of Aircraft, Equipment, and Vehicles
Revises: Airport Directive 06-06, dated, June 6, 2006
The Raleigh-Durham Airport Authority (Authority) has revised Airport Directive 06-06
which permits limited aircraft, equipment, and vehicle washing on the airport premises,
as set forth below.
NPDES Permit NCO084514 (Permit) authorizes named Co -Permittees of the Permit to
discharge vehicle washwater into the Authority stormwater system, as long as the Co -
Permittee complies with Permit requirements. Only Co -Permittees and their authorized
subtenants and contractors may discharge washwater authorized by this Airport
Directive to the Authority stormwater system. Tenants that are Co -Permittees are
responsible for ensuring that their subtenants and contractors conduct washing activities
in accordance with this Airport Directive and in accordance with the Stormwater
Pollution Prevention Plan (SPPP) required by the Permit.
The Authority prohibits all aircraft, equipment, and vehicle washing at the
individual hangars in the General Aviation area. Flow from the floor drains inside the
hangars goes to the Authority sanitary sewer system, which discharges to the Town of
Cary wastewater treatment facility. Exceptions to this ruling will be considered, by the
Authority, on a case by case basis and only if engineering designs account for 100%
containment of wastewater generated with no possibility of such wastewater entering the
sanitary sewer system.
DURHAM WAKE COUNTY DURHAM COUNTY RALEIGH
Robert D Tear. Jr, Chairman Terry K. Yeargan, Vice Chairman Tommy Hunt Kim D Frazier. Secretary
Tonna F Lipscomb. Treasurer Michael Weeks Craigie D. Sanders Geoff Elting

Airport Directive 06-06
Washing of Aircraft, Equipment, and Vehicles
SPECIFIC REQUIREMENTS
Aircraft
The General Aviation Wash Rack is to be used to wash aircraft only No other
equipment, vehicle, appliance, or any other item will be washed such that waste flow
enters the wash rack drain system Co -Permittees must wash the exteriors of aircraft,
with the longest dimension of the aircraft not exceeding 60 feet, only within the confines
of the General Aviation wash rack (i e , concrete drainage pad) Furthermore, no
detergents or solvents may be used to wash aircraft exteriors at the General Aviation
wash rack
Each Co -Permittee must use their Authority -issued RDU identification badge to activate
the wash rack By-passing this card -swipe procedure is a violation of Permit
requirements and will be considered a violation of this directive Co -Permittees are
prohibited from using the wash rack for any purpose other than washing of aircraft
Co -Permittees must wash all aircraft with a wingspan exceeding 60 feet on impervious
surfaces where washwater can be contained, collected, and recycled or transported off -
airport premises for disposal at a permitted wastewater treatment facility All resulting
sludges or residues must be managed in accordance with all federal and state
hazardous waste management regulations
Washing contractors who have formal agreements to conduct washing for Co -Permittees
must have an operating agreement with the Authority
Ground Service Equipment
Co -Permittees may wash ground service equipment (GSE) that does not have any
exposed engines, motors, or other machine parts GSE includes, but is not limited to, all
tugs, tractors, hydrant carts, and refueling trucks No detergents or solvents may be
used to wash GSE Furthermore, washwater must pass through a properly operating oil -
water separator before discharging to the Authority stormwater system
Co -Permittees may not wash GSE if the equipment has exposed motors, engines or
other machine parts Incidental washwater may spray through the engine cover or grill
while washing the exterior of GSE, however, spraying water directly through the engine
cover or grill constitutes engine' cleaning Engine cleaning must comply with the
requirements below
Passenger and Utility Vehicles
This Airport Directive allows but restricts washing of cars, buses, trucks, and Authority
emergency services vehicles Co -Permittees may wash these vehicle exteriors and

Airport Directive 06-06
Washing of Aircraft, Equipment, and Vehicles
discharge the wash water to the Authority stormwater system in accordance with the
requirements of the Permit, which among other requirements specifies that Co -
Permittees use minimal amounts of washwater, and biodegradable detergents with a pH
between 6 and 9 standard units. Washing of and/or performing maintenance on
personal vehicles is prohibited on airport premises.
Engines, Motors, and Machine Parts
This Airport Directive prohibits the discharge of washwater associated with cleaning
engines, motors, or other machine parts into the Authority stormwater or sanitary sewer
systems. Engines, motors, or other machine parts must be washed on impervious
surfaces where washwater can be contained, collected, and recycled or transported off -
airport premises for disposal at a permitted wastewater treatment facility. All sludges or
residues resulting from washing engines, motors, or other machine parts must be
managed in accordance with all federal and state hazardous waste management
regulations.
Washing contractors who have formal agreement to conduct washing for Co -Permittees
must have an operating agreement with the Authority.
Approved: G Date: %,-ru,y6 7-, -24 r q
,4o5n C. Bra62gq, Airport Director