Surface-drainage river water

This system collects surface drainage from areas containing hydrocarbon-bearing equipment. This water must pass through a treatment facility before being discharged into an uncontaminated system or natural body of water (e.g., a river or stream). 

Spills may represent the greatest point source release of methyl parathion to groundwater and surface water. An accidental spill caused by a warehouse fire in Nebraska released methyl parathion to a drainage ditch that emptied into the Missouri River (Kawahara et al. 1967). In another incident, 10 tons of methyl parathion spilled in the Mediterranean Sea near Eg q)t as a result of a collision between two ships (Badawy et al. 1984). 

Hitchon B, Krouse HR (1972) Hydrogeochemistry of the surface waters of the Mackenzie River drainage basin, Canada. III. Stable isotopes of oxygen, carbon and sulfur. Geochim Cosmochim Acta 36 1337-1357... 

Transport mechanisms include mass movement of soil (soil erosion and landslides), wind, rain, surface waters (rivers and lakes), groundwater, and human intervention. The latter may consist of wastewater pipes, drainage ditches, roads, trains, ships, smoke stacks, etc. 

The slope of the water table is defined by three major factors the base of the drainage system (sea, lake, river), the topography of the land surface, and the occurrence of impermeable rock beds. 

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