Compost Analysis

E3 Laboratories Inc. has been providing environmental analytical services in Ontario and across Canada since 1999. In recent years, we have added compost analysis to our scope of testing.

Our Strengths

  • Accurate results
  • Quick turnaround time
  • Excellent client service
  • Stringent internal quality control


  • CALA accredited for Selected Compost Analysis (ISO 17025)
  • Member of Compost Council of Canada
  • Member of US Composting Council
  • STA Compost-Certified laboratory

Program Participation

  • Magruder Fertilizer Check Sample Program
  • Soil Proficiency testing provided by NAPT (North American Proficiency Testing)

Compost / Fertilizer Analysis

  • Trace Metals (As, Cd, Co, Cr, Co, PB, Hg, Mo, Ni, Se, Zn)
  • Foreign/Sharp Matter and Plastic (Class AA, A, B)
  • Maturity (CO2 Respiration Rate)
  • Pathogens (E.coli(MPN), Fecal Coliform(MPN) and Salmonela(P/A))
  • Total Organic Matter (%)
  • Moisture (%)
  • PCBs (mg/Kg)
Other Compost Quality
  • pH
  • C:N Ratio
  • Particle Size
  • Soluble Salt
  • Dry Weight
  • Bulk Density
Fertilizer Quality (Nutrients)
Available Total
  • Available Potasium (%K)
  • Available Magnesium (%Mg)
  • Available Calcium (%Ca)
  • Available P2O5 (%)
  • Soulable Potash K2O (%)
  • Total Nitrogen (TN)
  • Total Phosphorus (P2O5)
  • Total Potash (K2O)
  • Total Calcium
  • Total Magnesium
  • Total Sulfur

COMPOST Council of Canada
Compost Certified Laboratory