Contact Us

We’d like to hear from you and would be happy to answer your questions. Here are some general numbers you can use:

General Inquiries: 925-432-5000

To find out the status of any emergency on-site: 925-432-5000, Choose Option 1

For Wetlands tours (non-school related): 925-432-5211

To reach an employee: 925-432-5000 (and type in his/her last name)

For the Scales Desk: 925-432-5450

For Shipping & Receiving: 925-432-5134

For HR-related questions: 925-432-5000 (Choose Option 5)

To verify employment: 1-800-800-4857 (company code = 7450)

To learn about job openings:

Data Privacy and Protection

The information collected in this form will only be used to ensure that we provide you with an appropriate response based upon the information you provide in the form above. We will contact you only if we need additional information to appropriately answer your question or in order to address your need. The contact information you provide, including e-mail address, may be used to respond to your request. We will not use the contact information you provide in this form for product or promotional advertising unless you specifically request to receive product news or information.

For more information, please review our Privacy Policy.