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.

CVAS is pleased to announce drop box locations in California for forage, feed, water and manure samples. Samples left at these locations will be picked up accordingly, starting at  LG Seeds in Stockton, CA and heading south to J&R Dairy, Bakersfield, CA.

Pick-up will run Monday through Friday, excluding holidays when the lab is not in operation (see for a list of holiday closings). The Shafter and Bakersfield location pick-up’s will be at approximately 3:00 PM excluding J&R Dairy, which will have a Thursday at 4:30 PM pick up schedule ONLY. After the samples are picked up, they will be shipped overnight to our Waynesboro, PA lab for processing.

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. Drop box locations may change or be increased over time as we obtain feedback from the field.  Drivers may skip boxes if we do not receive a text due to traffic backups or weather issues if necessary.

For northern California text 855-933-3531.

For southern California (Bakersfield and Shafter areas) text 855-490-1039.

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

In the PDF are pictures of each location, the complete address of each business, and a map with all locations marked (numbers next to the locations below, match the locations on the  map).

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 look  forward to serving our client’s needs.


California Drop Box Location Addresses

  • LG Seeds - 2414 Station Drive, Stockton, CA 95215

  •  Al Gilbert - 4346 Jessup Road, Keyes, CA 95328

  • Hilmar Feed & Supply - 9038 Lander Avenue, Hilmar, CA 95324

  • Lockwood Seed & Grain - 26777 Chowchilla Boulevard, Chowchilla, CA 93610

  • Chevron - 327 W. Merced St., Fowler, CA 93625

  • Roche Oil - 1120 E. Paige Ave. Tulare, CA 93274

  • Shell - 683 N. Thompson Rd., Tipton, CA 93272

  • Machado Hay - 3228 East Tulare Avenue #3329, Tulare, CA 93274

  • Chevron - 202 Plaza Drive & East Crowley Avenue, Visalia, CA 93291

  • *Southern Counties DHIA - 807 East Lerdo Highway, Shafter, CA 93263

  • *Troost Hay - 400 Road 1255, Shafter, CA 93263

** 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.