Mail Hay Tests To:
Sierra Testing Services
9450 E. Collier Rd
Acampo, CA 95220
What to Include with Test(s):
*See Sample ID Tags*
- Your billing information
- Phone number
- Preferred method of obtaining results (fax, email, etc.)
- Sample ID
- Product type
- Test to be run
>Equine program tests must be specifically labeled!
Samples are picked up Monday through Friday. Please note the time change for pick up for each box. Samples are received the next morning around 10:30 AM, except Friday's pick up is delivered the following Monday.
Drop Off Before 3:00 PM
36826 County Rd 24
Drop Off Before 5:00 PM
Corner of Jack Tone & French Camp Rd in Escalon, CA
Drop boxes are now closed for the season.
** Maps for STS and Drop Boxes are located on the “Helpful Links & Maps” Page
STS is contracted with Dairyland Laboratories in Arcadia, Wisconsin for wet chemistry analysis. Several packages are available. Dairyland results may take 7-10 days to be received. Due to an increase in processing fees, Nitrate testing is a flat rate of $15. For pricing on all other tests please contact us for your needs.