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

Links
Maps

Sierra Testing Service

9450 E. Collier Rd.

Acampo, CA 95220

Joe Heidricks

36826 County Rd 24

Woodland, CA

Samples must be in the box before 3:30 PM to be delivered the next morning/business day around 10:30 AM

Samples must be in the box before 5:00 PM to be delivered the next morning/business day around 10:30 AM

Drop boxes are now closed for the season.