Special Analysis Interpretation Sheet
Oil           
J Stevens
Specialist – Soils and Fertilizers

	Oil is not essential for plant growth and is considered a contaminant.  Medium to high levels of oil would indicate contamination from an outside source.

	Our lab extracts for oil with ether.  The interpretations for oil levels in Louisiana soils are as follows:

Oil Level (%)	Interpretation	
<0.25	Low	
0.25-0.50	Medium	
>0.50	High