Sample Resources
Guidelines
Compost testing provides a scientific way to promote the best composting practices and enhance product quality.
Note: Sewage sludge treatment must meet class A or class B pathogen reduction for samples to be analyzed by the lab. Also, industrial sludge samples will only be analyzed if they have passed the EPA toxicity characteristic leaching procedure (TCLP) test.
| Analyses Available | In State* | Out-of-State* | Comments |
|---|---|---|---|
| Standard | $25 | $50 | Includes percent moisture, total nitrogen, total carbon, carbon:nitrogen ratio, pH, organic matter, and soluble salts. |
| Special | $40 | $80 | Includes the standard analysis listed above plus ammonium nitrogen and total digestible phosphorus, potassium, calcium, magnesium, sulfur, zinc, copper, manganese, iron, aluminum, and sodium. |
| Carbon:Nitrogen | $10 | $20 | |
| Bulk Density | $10 | $20 | |
| Nitrate Nitrogen | $10 | $20 | |
| Fax Report | $1 | $1 | |
| Mailed Paper Report | $1 | $1 |
*Cost stated is per sample.
Agricultural Service Laboratory
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Agricultural Service Laboratory | 171 Old Cherry Road, Clemson, SC 29634
