The new and updated CVAS portal can be found at this link. This site IS NOT LIVE for sample submission, but for review. See HERE for a client portal quick guide and full operations manual.

CVAS California Sample Pick Up System

A PDF version of this information as well as a map and location images can be found HERE.

FOWLER, CA LOCATION UPDATE - the drop box has been moved next to the propane tank during the exterior remodel at this location (image below).

Drop boxes are available for forage, feed, water and manure samples. There are 12 drop box locations starting at LG Seeds in Stockton, CA (Location 1) and heading south to J&R Dairy in Bakersfield, CA (Location 12).

Samples left at locations 1-11 are picked up Monday through Friday. Samples left at J&R Dairy in Bakersville are picked up on Thursdays only (For J&R Dairy, please place samples in the  brown refrigerator accessed through the back door on the scale house). There is no pickup on holidays when the lab is not in operation. See HERE for a list of holiday closings.

All samples are shipped overnight to our Waynesboro, PA lab for processing. There is a $2.50 per sample handling fee for utilizing a drop box.

Be aware of pick up times for locations.  Note that there are two routes:  Locations 1-9 and Locations 10-12.


When dropping off samples, please send a text message to the number on the top of the drop box with the location, account name, and number of samples dropped. This information will assist us in planning the pick-up on any given day. If necessary, drivers may skip boxes if we do not receive a text due to traffic backups or weather issues.

Results for NIR analysis should be available the next business day, following drop off. Sample bags and testing information is available at each drop location. Supplies may also be requested by emailing

Please be respectful of the businesses that have given permission for us to place drop boxes at their locations. Thank them for that privilege if you have opportunity.


We provide UPS  shipping labels to clients that we will bill back to the client.  Those rates are below:

UPS Ground Service .............$9.00

UPS Second Day Service ....$29.00

UPS Overnight Service .......$39.00


1.  11:15 AM -  LG Seeds - 2414 Station Drive, Stockton, CA 95215

2.  11:55 AM - Al Gilbert - 4346 Jessup Road, Keyes, CA 95328

3.  12:20 PM - Hilmar Feed & Supply - 9038 Lander Avenue, Hilmar, CA 95324

4.  1:10 PM - Lockwood Seed & Grain - 26777 Chowchilla Boulevard, Chowchilla, CA 93610

5.  2:25 PM - Chevron - 327 W. Merced St., Fowler, CA 93625

6.  3:30 PM - Roche Oil - 1120 E. Paige Ave. Tulare, CA 93274

7.  3:40 PM - Shell - 683 N. Thompson Rd., Tipton, CA 93272

8.  4:00 PM - Machado Hay - 3228 East Tulare Avenue #3329, Tulare, CA 93274

9.  4:25 PM - Chevron - 202 Plaza Drive & East Crowley Avenue, Visalia, CA 93291

10.  3:00 PM - *Southern Counties DHIA - 807 East Lerdo Highway, Shafter, CA 93263

11.  3:00 PM - *Troost Hay - 400 Road 1255, Shafter, CA 93263

12.  4:30 PM - ** J&R Dairy - 4403 Bear Mountain, Boulevard, Bakersfield, CA 93313

*The Bakersfield and Shafter locations will be a separate route from the other locations.

** J&R Dairy is part of the Bakersfield and Shafter route and will only be picked up on Thursday.

#5, Chevron in Fowler, CA - temporary drop box location.