Solution Testing

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New pricing effective as of April 1, 2022. Contact the lab ( if you have questions about fees. 

  • Varies by submission size and analyses selected. 
  • If you plan to submit a large submission, please contact the lab for more up-to-date turnaround estimates. We can do our best to work with your priority of analyses and send out data on a rolling basis.  

Mail samples AND Solution Submission Form to: 

OSU Soil Health Lab

3017 Ag Life Sciences Bldg

Corvallis, OR 97331 

  • Samples AND Solution Submission Form can be placed in the Submission Drop Box outside of our laboratory door, Agricultural Life Sciences Bldg Room 3079. 
  • Plastic bags, sharpies, and extra submission forms are available if needed. 
  • Drop-off hours are Monday-Friday 8AM-4PM. 
  • Contact the lab AFTER drop-off to alert personnel to check the Submission Drop Box. 
  • Ring the doorbell if you need assistance. 
  • View the All Fees Per Analysis for a full view of all analyses offered or scroll down to see solution-specific analyses. 
  • Pricing is per sample AND varies by submission size
  • A discount is given for submissions of 16+ samples.
  • Turnaround time for RUSH analysis varies by sample submission size. Contact the lab if you'd like to do a RUSH analysis. 
  • Contact the Lab Manager if you'd like to receive a formal quote.  

You MUST contact the lab BEFORE shipping out-of-state samples. We need to confirm whether the samples are coming from an area that may pose a biological threat to the soils and plants of our region. 

Analyses for Solutions

Analysis Description RUSH Pricing per sample Price per sample for 1-15 samples Price per sample for 16+ samples
pH acidity or alkalinity of soil $10.00 $7.00 $7.00
Electrical conductivity (EC) conductivity of soil salts in solution $10.00 $7.00 $7.00
pH+EC   $15.00 $9.00 $8.50
Plant available Phosphorus (PO4-P) Colorimetric analysis  $35.50 $13.00 $11.50
Plant available Ammonium (NH4-N) Colorimetric analysis  $30.50 $8.00 $6.00
Plant available Nitrate (NO3-N) Colorimetric analysis  $29.50 $7.00 $5.00
NH4-N + NO3-N   $59.50 $15.00 $10.50
Elemental analysis by ICP-OES  Determination of elemental concentrations $100.00 $22.50 $15.50
Total Carbon and Nitrogen Dissolved carbon and nitrogen by Shimadzu   $26.00 $18.50