The document discusses typical bioremediation processes for oil spills which involve adding fertilizer and bulking agents, tilling the soil for aeration and mixing, and controlling pH and moisture. It also discusses remediation of brine spills using drainage control, adding organic matter to mobilize salt, tilling, and adding gypsum to combat sodicity. The document questions how to define the endpoint of remediation projects in terms of reducing contaminant concentrations to regulatory limits.