SIERRA TESTING SERVICE:  9450 E. Collier Rd.  *  Acampo, CA 95220  *  209-333-3337 * stshaytest@gmail.com

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Hours Of Operation

Monday - Saturday   8:00 AM - 5:00 PM

*Please call prior to Saturday testing*

Sunday                      Closed

“WE MEASURE QUALITY” 
ONE DAY SERVICE

Thank you for visiting the Sierra Testing Service website. Sierra Testing Service is a NIR Forage and Grain testing laboratory specializing in same day results of hay, silage, and grain samples. This enables customers to utilize their results when they need them. Sierra Testing Service has the reputation of producing results that match the feeds performance. We have alfalfa hay customers in all the western states supplying the California and export markets. Please view the rest of our website for information about our company and industry related topics important to you.