Soil Tests

Recommended for farmers, landscapers, nurseries, homeowners and gardeners

Use Standard Soil Test For:

  • Lawn Care
  • Salt Build Up
  • Macro nutrients

Use Complete Soil Test For:

  • General overview before planting
  • Macro and micro nutrients
  • Major growth issues
  • Sod, Flower and Landscape Plants

Sample Services

IAS provides sampling services for our clients per request. Our rate for sample collection is $60/hr. with a minimum of one hour. In addition, travel time is $75/hr. with a minimum of one hour.

Test Description Price
Standard Soil Test Available Calcium, Magnesium, Sodium, Potassium, Nitrate, Phosphate, Salinity, pH, Free Lime $37.00
Complete Soil Test Everything in standard soil test, plus available Zinc, Iron, Manganese, Copper, Boron, Sulfur $66.00
Potting Mix Everything in the complete soil test plus pH and EC analyzed by saturated paste. $74.00
Potting Mix with C:N Ratio IAS recommends adding Carbon:Nitrogen ratio to ensure that the product has finished composting $106.00
Herbicide/Bioassay Bioassay for herbicide detection (allow three weeks) $55.00
Crop Specific Recommendations: Single Sample How to correct the soil problem identified in the report. $9.00
Crop Specific Recommendations: Multi Samples How to correct the soil problem identified in the report. $6.00
pH (1:1) Specify if saturated paste $12.00
Soluble Salts (EC) Specify if saturated paste $17.00
Water soluble Ca, Mg, K and Na Saturated Paste Extration.  Includes Sodium Absorption Ratio (SAR) $48.00
Available Ca, Mg, K and Na Ammonia Acetate Extraction.  Includes ESP. $34.00
Available Fe, Zn, Cu and Mn DTPA Extraction $36.00
Available B and S Hot Water Extraction $24.00
Nitrate-N and Phosphate-P Olsen Bicarbonate Extraction $24.00
Nitrate-N Olsen Bicarbonate Extraction $12.00

Recommended for engineers & environmental consultants

ADOT Topsoil Specifications

Test Description Price
Nutrient Group pH, Soluble Salts, Calcium Carbonate, Exchangeable Sodium, Exchangeable Sodium Percentage $96.00
Physical Group Plasticity Index, Gradation (three sieves) $102.00
Saturated Paste Group Calcium, Magnesium, Sodium, Potassium, EC salinity, pH, SAR (calculated) $57.00
ADOT Table 3 pH, Total Nitrogen, C:N ratio, Organic Matter, CEC, Maturity Index $213.00
ADOT Table 4 pH, Total Calcium, Magnesium, Sodium, Iron, Zinc, Manganese, Copper, Nitrogen, Aluminum, Sulfur, Boron, Carbon:Nitrogen, CEC, Organic Matter. $188.00

ADOT Chemical and Physical Analyses

Test Description Price
Sulfate Sulfur Ariz 733 $28.00
Chloride Ariz 736 $33.00
Resistivity Box Method Ariz 236 $95.00
Soluble Salts Ariz 237b $17.00
Calcium Carbonate Ariz 732 $42.00
pH Ariz 237b $12.00
Sulfate-S and Chloride Ariz 733 and Ariz 736 $44.00

Other Physical Analyses

Test Description Price
Total Organic Carbon (TOC) Analyzed by Loss on Ignition at 360°C.  Please specifiy if a different temperature is required. $45.00
Bulk Density (loose or core) $55.00
Infiltration Rate $36.00
Moisture $15.00
Organic Matter $38.00
Porosity $44.00
Texture by Hydrometer % Sand, % Silt, % Clay $27.00
Sieve Analysis (per sieve) $16.00
Soil Moisture Retention per tension (0-15 Bar) $35.00
Plasticity (Liquid and Plastic Limit) $60.00
Capillary Rise 5 tensions and graph $190.00
Water Holding Capacity SMR at 0 bars tension $35.00
Munsell Soil Color $15.00

Chemical Analyses

Test Description Price
Ammonical Nitrogen $20.00
Nitrate Nitrogen $12.00
Total Nitrogen $21.00
Total Carbon $21.00
C:N Ratio (Carbon:Nitrogen) $32.00
C:N:S Ratio (Carbon:Nitrogen:Sulfur) $52.00
Cation Exchange Capacity (CEC) $45.00
Chloride in concrete ASTM C1218/C114 $83.00
Acid Generting Potential Pyretic Sulfur $55.00
Acid Neutralization Potential % Calcium Carbonate $42.00
Net Neurtalization Potential Acid Generation Potential and Acid Neutralization Potential $97.00
Sulfuric Acid Requirement Graph $55.00
Iodine Number of Activated Carbon ASTM 4607 (allow two weeks) $145.00
Total Kjeldahl Nitrogen TKN by distillation $28.00

Recommended for dairy and animal farms

Dairymen Soil Analyses

Test Description Price
Dairymen Soil Analysis Includes: pH, EC (salinity), Nitrate-N, Phosphate-P, Available Potassium, CEC, Organic Matter $130.00