Tests and fees
Tests and fees for the following sample types can be found below:
Electronic data access
- Soil test reports can be emailed or accessed using our website with a password assigned by the lab.
Volume discounts
- We offer discounts for large numbers of samples. For more information, please contact the Soil and Plant Testing Laboratory.
- Soil analysis
- Special soil tests
- Compost tests
- Environmental soil analysis
- Greenhouse/Green roof media tests
- Manure tests
- Plant tissue tests
- Water tests
Method of payment
- We accept checks and we're now accepting credit card payments for soil samples submitted directly to the lab. Samples should be accompanied by a completed sample information form and a check or a copy of your credit card payment receipt (emailed to you after purchase).
- The lab also accepts purchase orders. Contact the lab to discuss this process.
- If you have an account set up with the lab, include the firm and outlet number and we will bill you at the end of the month.
- Do not send cash with samples.
| Soil analysis | Analysis cost |
| Regular analysis: pHs, NA, OM, Bray I-P, Ca, Mg, K (includes grinding with recommendations) |
$12.50 - for counties and firms with accounts $15.00 - for submitting samples directly to lab |
| Bray 1-P or Bray II-P (with regular analysis — $4) | $5 |
| Mehlich III or Olson P | $5 |
| pHw or pHs (with regular analysis — $3.00) | $5 |
| Neutralizable acidity (NA) and pHs | $6 |
| Sodium (with regular analysis — $2) | $5 |
| Zinc (with regular analysis — $4) | $5 |
| Fe, Cu, Mn (with regular analysis — $4.50) | $6 |
| Zinc, Fe, Cu, Mn (with regular analysis — $7.50) | $8.50 |
| Nitrate (with regular analysis — $4) | $5 |
| Ammonium (with regular analysis — $4) | $5 |
| Nitrate and ammonium (with regular analysis — $8) | $9 |
| Sulfate-Sulfur (with regular analysis — $5) | $6 |
| Boron | $5 |
| Organic matter (OM) | $5 |
| Particle size analysis (percentage sand, silt and clay) | $15 |
| Electrical conductivity | $6 |
| Revise crop recommendations (If requesting to revise recommendations, additional charges will apply) |
$2 |
Walk-in rate
The fee for regular fertility tests varies in counties depending on their shipping and handling costs. Contact your county extension center to get the exact cost when submitting through their office.
| Special soil tests | Analysis cost |
| Total Kjeldhal nitrogen (TKN) | $10 |
| Inorganic — nitrogen (NO3-N and NH4-N) | $9 |
| TKN and inorganic N and organic N | $20 |
| Nitrate-N (NO3-N) | $5 |
| Ammonium-N (NH4-N) | $5 |
| Total phosphorus (TP) | $10 |
| Total potassium (TK) | $10 |
| Sodium absorption ratio (SAR) | $15 |
| Exchangeable sodium percentage (ESP) | $15 |
| Electrical conductivity | $6 |
| Particle size analysis (percent sand, silt, clay) and soil texture | $15 |
| Exchangeable cations and Base saturation percentage | $15 |
| Cation exchange capacity (addition method) | $12.50 |
| Cation exchange capacity (NH4OAc-distillation method) | $18 |
| Total carbon (TC) by combustion | $10 |
| Total nitrogen (TN) by combustion | $10 |
| Total sulfur (TS) by combustion | $10 |
| Total CN/NS/CS (any two of the above combinations) | $17 |
| Total carbon, nitrogen and sulfur by combustion (TCNS) | $25 |
| Potentially mineralizable N | $16 |
| Saturated hydraulic conductivity (constant head permeability) | $250 |
| Compost tests | Analysis cost |
| Complete compost analysis package (regular) includes: Total N, P, K, Ca, Mg, Zn, Fe, Cu, Mn; C/N, pH, EC and moisture percentage |
$40 |
| Total nutrients: N, P, K, Ca, Mg and moisture percentage | $22 |
| Total nutrients and micros: N, P, K, Fe, Cu, Zn, Mn and moisture percentage | $28 |
| pH (saturation paste method) | $6 |
| Electrical conductivity (EC — saturation paste method) | $6 |
| Nitrate-N and ammonium-N | $10 |
| Total Kjeldhal nitrogen | $10 |
| Total nitrogen (TN) by combustion | $10 |
| Total carbon (TC) by combustion | $10 |
| Carbon : nitrogen ratio (C/N ratio) | $17 |
| Individual element analysis: P, K, Ca, Mg or Na | $6/element |
| Sulfate-S | $6.50 |
| Boron | $5 |
| Chloride | $6.50 |
| Moisture percentage | $4 |
| Ash percentage | $6 |
Volume
Samples should be approximately 1 quart.
| Environmental soil analysis | Analysis cost | One-time setup fee* |
| Arsenic (As) | $20 | $25 |
| Cadmium (Cd) | $20 | $25 |
| Chromium (Cr) | $20 | $25 |
| Cobalt (Co) | $20 | $25 |
| Lead (Pb) | $20 | $25 |
| Nickel (Ni) | $20 | $25 |
| Molybdenum (Mo) | $20 | $25 |
| Selenium (Se) | $20 | $25 |
| Heavy metals package (Cd, Co, Mo, Ni, Pb) | $30 | $25 |
| Metals package (As, Cd, Co, Cr, Mo, Ni, Pb, Se) | $50 | $25 |
| Trace element package (As, Cr, Se) | $25 | $25 |
| Urban metals package (Cu, Cd, Pb) | $25 | $25 |
*Setup fee of $25 is only charged once, whether for a single sample or several.
| Greenhouse/Green roof media tests | Analysis cost |
| Regular greenhouse media analysis (GHM) package: pH, P, K, Ca, Mg and total salts | $22 |
| Regular GHM analysis package plus micro nutrients: pH, P, K, Ca, Mg, Zn, Fe, Cu and Mn | $28 |
| Complete GHM analysis: pH, P, K, Ca, Mg, Zn, Fe, Cu, Mn, Nitrate-N, Ammonium-N and total salts | $36 |
| Micro-elements (Fe, Cu, Zn and Mn) only | $12 |
| Nitrate-N and ammonium-N | $9 |
| Individual element analysis | $6 |
| Organic matter | $5 |
| Chloride | $6.50 |
| Sulfate-S | $6 |
| Moisture percentage | $4 |
| Percent solids | $4 |
| Special handling fee per green roof media sample | $5 |
Volume
Sample volume should be approximately 1 quart.
| Manure tests | Analysis cost |
| Complete manure analysis package: total N, P, K, NH4-N, pH, EC and moisture percentage | $40 |
| Total nutrients: N, P, K and moisture percentage | $22 |
| Total nutrients plus Ammonium-N: N, P, K, NH4-N and moisture percentage | $28 |
| Total nutrients and micros: N, P, K, Fe, Cu, Zn, Mn and moisture percentage | $28 |
| pH (saturation paste method) | $6 |
| Electrical conductivity (EC — saturation paste method) | $6 |
| Total Kjeldhal nitrogen | $10 |
| Ammonium-N | $6 |
| Individual element analysis: P, K, Ca, Mg or Na | $6/element |
| Moisture percentage | $4 |
Volume
Samples should be 1 quart for dry manure and 1 pint for liquid manure.
| Plant tissue tests | Analysis cost |
| Regular analysis: nitrogen, phosphorus, potassium, calcium and magnesium + drying and grinding | $17 |
| Regular analysis plus micro nutrients: copper, iron, manganese and zinc + drying and grinding | $23 |
| Complete nutrient analysis package: regular + micros + boron, molybdenum and sulfur + drying and grinding | $30 |
| Micro nutrients only: copper, iron, manganese and zinc | $12 |
| Individual analyses (per nutrient) | |
| Nitrogen (TKN) | $10 |
| Phosphorus (P) | $10 |
| Potassium (K) | $10 |
| Calcium (Ca) or Magnesium (Mg) | $5 |
| Iron (Fe) or Copper (Cu) or Zinc (Zn) or Manganese (Mn) | $5/element |
| Boron | $5 |
| Chloride | $6.50 |
| Nitrate-N | $8 |
| Corn stalk Nitrate-N | $12 |
| Total Nitrogen (N) by Combustion | $10 |
| Total Carbon (C) by Combustion | $10 |
| Total Sulfur (S) by Combustion | $10 |
| Total C and N by Combustion | $17 |
| Total C, N and S by Combustion | $25 |
| Sample grinding | $2 |
| Ash percentage | $6 |
| Moisture percentage | $4 |
Grinding fee
A grinding fee of $2 per sample for individual analysis will be added for all plant samples that need to be dried and ground.
| Water analysis packages | Analysis cost |
| Domestic suitability Hardness, pH, nitrate-N, sulfate, chloride, sodium, carbonate, bicarbonate, iron, manganese, copper, electrical conductivity, total dissolved solids |
$35 |
| Irrigation suitability pH, nitrate-N, sulfate, chloride, sodium, phosphorus, potassium, electrical conductivity, carbonate, bicarbonate, total dissolved solids and SAR |
$35 |
| Livestock suitability pH, nitrate-N, sulfate, calcium, magnesium, sodium, chloride, copper, iron, and manganese, electrical conductivity, total dissolved solids |
$40 |
| Poultry suitability Hardness, pH, nitrate-N, sulfate, phosphate, chloride, calcium, magnesium, sodium, potassium, carbonate, bicarbonate, iron, manganese, copper, electrical conductivity, and total dissolved solids |
$45 |
| Complete Hardness, pH, nitrate-N, sulfate, phosphate, chloride, calcium, magnesium, sodium, SAR, potassium, carbonate, bicarbonate, alkalinity, iron, copper, manganese, zinc, aluminum, silica, electrical conductivity, total dissolved solids, without interpretation |
$60 |
Volume
Submit 500 ml or 16 fluid oz. of sample for analyses.
| Water analysis – Individual tests | Analysis cost |
| pH | $4 |
| Nitrate-N and/or nitrite-N | $5 |
| Ammonium-N (if requested with nitrate and/or nitrite: $4) | $5 |
| Chlorides | $6.50 |
| Sulfur-sulfate | $6 |
| Phosphates (ortho) | $6 |
| Boron | $5 |
| Calcium, magnesium, potassium, sodium | $8 |
| Micro-nutrients: Zinc, iron, manganese and copper | $8 |
| Carbonates and bicarbonates | $8 |
| Electrical conductivity | $6 |
| Total dissolved solids | $8 |
| Hardness | $10 |
Volume
The minimum sample volume is 1 quart.