Figure 6.37. Utilities and In-Pavement Structures.
18.104.22.168. Navy and Marine Corps. Wash rack service points are required for the Navy and
6.14.8. Wastewater Collection. Waste drains will be located in the center of the wash rack
pavement to collect wash water contaminates (oils, alkaline, salts, and other contaminants) generated
from aircraft washing operations. Off-center waste and trench drains are permitted only where
necessitated by the aircraft landing gear configuration or where the off-center drains reduce
construction costs or suit existing conditions.
6.14.9. Wastewater Treatment. Sewers drain wastewater from waste drains to a 19 cubic meter
[5,000 gallon] separator (holding tank). Due to the wash soap, the tanks will not act as oil water
separators. Wastewater collection systems will be designed in accordance with AFM 88-11,
Sanitary and Industrial Wastewater Collection Gravity Sewers and Appurtenances, and MIL-
HDBK-1005/9, Industrial and Oily Wastewater Control. In no case will untreated waters be