Abstract: Methods and systems for treating a hydrocarbon containing water waste mixture are taught and described. The mixture is placed into a composite-lined disposal cell wherein the liquid fraction separates into a water fraction and a hydrocarbon fraction. The hydrocarbon fraction is extracted and the water fraction is filtered through top soil and a geotextile composite into collector tubes located in the subgrade beneath the disposal cell. The filtered water is pumped into a first vessel and again allowed to separate into a hydrocarbon fraction and a water fraction. The hydrocarbon fraction is pumped into a second vessel and the water fraction may be extracted from the first vessel. The hydrocarbon in the second vessel may be further processed, treated, or sold to a reclaimer.