Since 1978

Welcome to Holmes Laboratory, Inc.

An independent analytical laboratory that tests water, soil, forages, feedstuffs, plant tissue, compost, mycotoxins, manure, and etc.

Submitting Samples

Feed/Soil Sample bags, Water bottles, and Manure containers can be mailed, or sent via UPS, etc. Fill the bag 1/2 full for forages, feedstuff or soils. Submit 16 oz. of water and 1 quart container 1/2 full of manure. If you use the U.S. Postal Service, check with them about their free Priority Mail Envelopes. Samples will be started the same day that we receive it.

For Instructions on how to take samples, please see "Resources".


Samples submitted by US Mail arrive at our lab earlier in the morning and therefore begin the testing process sooner.

Samples sent via US Mail:

Holmes Laboratory, Inc.
PO Box 204
Winesburg, OH 44690-0204

Samples sent via UPS, FedEx or other carriers:

Holmes Laboratory, Inc.
3559 U.S. Route 62
Millersburg, Ohio 44654-8834

Please complete the information requested on the sample bags and information forms.

For Soils: Use Soil Information Sheet.  Submit 2 cups per sample, (wet or dry) in a quart plastic bag. (This is half full).

All Other Samples:  Use Sample Information Sheet.  Submit one full quart plastic bag per sample for forage, feedstuffs, and fertilizer. One gallon is required for compost or greenhouse growth media.

To avoid delays, please enclose check, money order, or credit card information for Visa, Mastercard, Discover or American Express. Payable to Holmes Laboratory, Inc.

▪ Wet chemistry procedures are used for all testing.

▪ Results can be e-mailed or faxed at no extra charge.

▪ Free sample bags and supplies will be sent upon request.

▪ Samples are retained for 30 days.

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