EPTC Gets Results

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EPTC Gets Results!

Environmental Products & Technologies
Compost - Typical Analysis:
(From averages 1998)

ITEM	RATIO
Nitrogen	1.63%
Calcium	2.25%
Magnesium	0.70%
Phosphorus	0.47%
Potassium	2.22%
Sodium	0.34%
Sulfur	0.43%
Organic Material	29.76%
pH	7.5
C:N Ratio	22:1
METAL	LEVEL FOUND	MAX LIMIT (EPA Std)
Cadmium	Negligible	below 39 mg/kg
Copper	27.16 mg/kg	below 4300 mg/kg
Lead	Negligible	below 300 mg/kg
Molybdenum	Negligible	below 75 mg/kg
Nickel	11.02 mg/kg	below 420 mg/kg
Selenium	Negligible	below 36 mg/kg
Zinc	137.2 mg/kg	below 7500 mg/kg
	BIO ACTIVITY	RESULTS
	Salmonella	Negative
	Total Coliform	Negative
	Staphylococcus	Negative
	Pseudomonas aeroginosa	Isolated
	Bacillus subtilis	Isolated

All testing was done by USU Analytical Laboratories and Utah Veterinary Diagnostic Laboratories in Logan, Utah.

This EPTC compost was made from dairy manure mixed with straw bedding. The finished compost was obtained in 2 days. Compost maturity was determined based on starting and ending C/N ratios, respiration rate, color, and odor.

Utah State University
Biological and Irrigation Engineering Department