Master Gardeners 2019, Private Soil Testing Labs for Home Gardens, Extension

Private Soil Testing Labs

Below is a list of private soil testing labs that may be able to complete comprehensive soil testing. Extension does not recommend or endorse any particular lab, and this list of nearby labs may not be exhaustive.


Sierra Environmental Monitoring

1135 Financial Blvd.
Reno, NV 89502
(775) 857-2400 ph.
(888) 398-7002 fax
Environmental laboratory testing soil for horticultural suitability including micro and basic nutrients. Also water testing: drinking, wastewater, and irrigation water. Call for pricing.

Alpha Analytical, Inc.

255 Glendale Ave. Ste. #21
Sparks, NV 89431
(775) 355-1044 ph.
(800) 283-1183 toll free
Serves environmental engineering community by doing organic and inorganic testing. Organic lab for large numbers of samples (20 or more): testing for volatiles, petroleum hydrocarbons. Call for pricing.

Agri Test/ Nevada Analytical Services

855 Mill St., Suite 2B
Reno, NV 89502
(775) 284-3970 ph.
(866) 755-7619 fax
Offers basic nutrient test and complete nutrient test. Basic covers organic matter percent, pH, soluble salts, nitrates, phosphorus, boron, sulfur, zinc, manganese, copper and iron as well as exchangeable cations for several nutrients. Complete testing goes further for water solubility, saturation and total metals. See website for pricing.

Western Environmental Testing Laboratory

475 E. Greg Street, Ste. 119
Sparks, NV 89431
(775) 355-0202 ph.
(775) 355-0817 fax
Environmental testing laboratory provides analysis of metals, minerals, inorganics and microbiology. Will not test for general soil quality, but can do testing for specific nutrients (i.e. Nitrates, phosphates). Well water testing available. Call for pricing.



1311 Woodland Ave. Ste. #1
Modesto, CA 95351
(209) 529-4080 ph.
(209) 529-4736 fax
Soil testing (many options and packages available), water testing, compost and manure, and feed testing available. See website for pricing.

Denele Analytical, Inc.

1232 South Ave.
Turlock, CA 95380
(209) 634-9055 ph.
(209) 634-9057 fax
Soil testing measures elements for their “plant available” content and analysis includes fertilizer recommendations. Also offer water, plant, feed, manure and compost testing. See website for pricing.

Dellavalle Laboratory, Inc.

1910 W. McKinley #110
Fresno, CA 93728-1298
(559) 233-6129 ph.
(800) 228-9896 toll free
Basic Fertility Soil analysis tests Nitrates, Phosphates, Potassium, and Zinc levels; Fertility Assay for potting mixes. Also offer water, plant tissue, and manure analyses.
Call for pricing.

Soil & Plant Laboratory-Southern California

4741 E. Hunter Ave. Ste. A
Anaheim CA 92807
(714) 282-8777 ph.
(714) 282-8575 fax
Basic fertility, pH, salinity, sodium and five soluble and exchangeable major nutrients.
Leaf tissue analysis, composts evaluation, and water analysis for irrigation suitability. See website for pricing.

Waypoint Analytical

1101 S. Winchester Blvd. Ste. G173
San Jose CA 95128
(408) 727-0330 ph.
(408) 727-5125 fax
Basic fertility, pH, salinity, sodium and five soluble and exchangeable major nutrients.
Leaf tissue analysis, composts evaluation, and water analysis for irrigation suitability. See website for pricing.

Sunland Analytical Lab

11419 Sunrise Gold Circle #10
Rancho Cordova, CA 95742
(916) 852-8557 ph.
(916) 852-8558 fax
Soil analysis for agricultural use, landscaping and gardening, environmental analysis, geo-technical, and potting soil. Testing of compost and manure to determine nutrients, plant tissue for crop yield, and water for irrigation, storm or drinking. See website for pricing.


Colorado State Soil, Water & Plant Testing Lab

1231 E. Dr.
Fort Collins, CO 80523
(970) 491-5061 ph.
(970) 491-2930 fax.
Routine analysis for soil gardens and agriculture with interpretation of results; manure and composts, plant tissue, forage, and water testing available as well. Lab does not test for pesticides or herbicides. See website for pricing.


Utah State University Analytical Labs (USUAL)

If sending via FedEx or UPS
1541 North 800 East
Logan, UT 84322-4830
If sending via USPS
9400 Old Main Hill
Logan, UT 84322
(435)797-2217 ph.
Garden soil nutrients, texture, pH, salinity, organic matter. Options to pick and choose specific macro and micronutrients tested. Manure, plant, feed, and water testing. See website for pricing.


Stukenholtz Laboratory

If sending via FedEx or UPS:
2924 Addison Ave. East
Twin Falls ID 83301
If sending via USPS
P.O. Box 353
Twin Falls ID 83303
(208) 759-3050 ph.
(800) 759-3050 toll free
(208) 734-3919 fax
Soil analysis for nutrient management; use NRCS accepted methods and reporting format. Also test fertilizer and lime, manure and compost, plant tissue, and water. See website for pricing.

University of Idaho Analytical Sciences Laboratory – Holm Research Center

2222 West Sixth Street
Moscow, ID 83844-2203
(208) 885-7081 ph.
(208) 885-8937 fax
Standard and Extended Fertility Soil Tests provided, pH and micro and macro nutrients. Also provides plant and water analysis, and Veterinary Diagnostic Toxicology Services.
See website for pricing.

Western Laboratories

If sending via FedEx or UPS
211 US HWY 95
P.O. Box 1020
Parma, ID 83660
If sending USPS
P.O. Box 1020
Parma, ID 83660
(208) 649-4360 ph.
(800) 658-3858 toll free
(208) 402-5303 fax
Garden Soil Test for gardens, berries, fruit trees, and lawn soil. Test provides both micro and macro nutrients with recommendations. See website for pricing.

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Also of Interest:

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Fisher, J. 2019, Extension website
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When a family raises chickens, they have a ready supply of brown gold from composted or aged manure to benefit their garden and landscape plants. Learn more about using chicken manure safely in home gardens and landscapes in this factsheet.
Saliga III, R. and Skelly, J. 2013, Extension | University of Nevada, Reno, FS-13-23
Managing Sooty Canker
Sooty canker is one of the few bacterial diseases that affects woody plants in the desert. This disease has many possible hosts, from many different plant families. It is not easy to control, and this fact sheet provides guidance for households trying to deal with it.
Johnson, W. S., Morris, R. and Mandekic, J. 1996, Extension, University of Nevada Reno, FS-96-26
Fall Gardening Checklist for Southern Nevada
This publication will help both the novice and the experienced gardener produce many cool season vegetables in their own yards. Fall is one of the best vegetable gardening times of the year in Southern Nevada. This creates the perfect time to grow many different vegetables such a...
Mills, L. and Johnson, W. 1987, Extension, University of Nevada, Reno FS-87-34
Long-term effects of intensive rice–wheat and agroforestry based cropping systems on build-up of nutrients and budgets in alluvial soils of Punjab, India.
Nutrient management
Dhaliwal, S. S., Naresh, R. K., Walia, M. K., Gupta, R.K., Mandal, A., and Singh, R. 2019, Archives of Agronomy and Soil Science.

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