Complete Compost Testing for Nutrient Value, Maturity, and Market-Ready Quality
The Ultimate Testing Package for Professional Compost Producers
Whether you're managing a large-scale composting facility, producing vermicompost, or selling bagged organic soil amendments, this Comprehensive Compost Analysis Package
delivers all the data you need to validate product quality, support sales, and ensure consistent performance in the field.
This package combines our most requested tests
into one streamlined analysis—offering a significant savings over ordering tests individually. You'll receive results on compost maturity, stability, physical properties, and both total and plant-available nutrients, giving you a full-spectrum profile to share with customers, regulators, or certification programs.
What’s Included in This Analysis
Physical Properties & Stability
Moisture
pH
Bulk Density
Porosity
Salinity (EC)
Particle Size Distribution (⅝" and ⅜")
Solvita® Compost Maturity / Stability Index
Total Organic Matter (LOI)
Organic Matter – Humus Fraction
C:N Ratio(Carbon-to-Nitrogen)
Total Nutrient Content
Total Nitrogen
Total Phosphorus
Nitrate (NO₃)
Phosphate (PO₄)
Potassium
Sodium
Calcium
Magnesium
Sulfur
Zinc
Iron
Manganese
Copper
Boron
Cobalt
Molybdenum
Selenium
Available Nutrients & Soil Interaction
% Active Organic Matter
Carbonates (CO₃)
Texture
Electrical Conductivity (EC)
Na:Ca and Na:Mg Ratios
Nitrate-Nitrogen (NO₃-N)
Phosphorus (P₂O₅)
Potassium (H₂O & CO₂ extractable)
Sodium (H₂O & CO₂ extractable)
Calcium (H₂O & CO₂ extractable)
Magnesium (H₂O & CO₂ extractable)
Zinc (Zn)
Iron (Fe)
Manganese (Mn)
Copper (Cu)
Sample Submission
Minimum Sample Size: 1 gallon of compost (finished, well-mixed)
Packaging: Sealed plastic container or heavy-duty bag labeled with sample ID
Turnaround Time: 5 business days
from lab receipt
Ideal For:
Commercial composting operations
Vermicompost producers
Soil amendment manufacturers and blenders
Farms using on-site compost for nutrient cycling
Retailers needing full spec sheets for compost-based products
Order the Comprehensive Compost Analysis Package Today
Get the complete data set your customers—and your product—deserve. One test. Total confidence.
Hi there! Have some questions about our company? Find the answers below.
What are your business hours?
Our office is open Monday thru Friday from 8 am to 5 pm. We do close for major holidays, so we recommend ordering your testing and sending your sample early if a holiday is coming up. You can always reach us by email. Just send us a message at info@tpslab.com
When will I get my results?
We understand that you need your results as soon as possible. That is why we make sure to begin processing your samples as soon as they arrive at our laboratory. When the results are ready, we will email them to the email address you provided on your submittal form. The list below will give you an idea of our usual turnaround times.
Soil Tests: 5-7 Business days
Water Tests: 5 - 7 Business days
Plants Tests: 24 - 48 Hours
Compost Tests: 7 - 14 Business days
Fertilizer Tests: 3 - 5 Business days
Heavy Metals Test: 7 - 14 Business days
We offer a rush option for an additional 50% of the testing cost, but we would encourage you to give yourself time to test before you get to a point where a rush is needed.
