- WHO WE ARE
- SOLID WASTE
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- 4R Star Business
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How do I Become a 4R Star Business?
Schedule your free site assessment by contacting Waste Management of Alameda County, Inc. (WMAC) at 510-613-8751 to begin your basic recycling program and pledge to become a High-Performance Recycler. This will earn you your first R – Recycle, and a window decal indicating participation in the program.
- Next, start and maintain at least one activity in each of the following categories: Reuse, Reduce, and Rot (or alternate). See the “4R Business, 4R Planet” Program Highlights sheet for more information or ask the WMAC Recycling Coordinator for assistance during your site assessment.
- Complete the “4R Business, 4R Planet” Program Application and submit to the WMAC Recycling Coordinator at the time of your site assessment, or to Castro Valley Sanitary District (CVSan) by mail, fax, or drop-off: 21040 Marshall Street, Castro Valley, CA 94546; fax 510-537-1312. You will be notified of your application status within 15 business days.
- Now it’s time to reap the rewards! Businesses that successfully complete the 4R Business, 4R Planet Award Program requirements earn their 4R Stars. 4R Star businesses will receive an award certificate to display with pride, and one (1) free advertisement in the Castro Valley Forum, and more!
HOW DO I GET MY BUSINESS RECOGNIZED IN THE CASTRO VALLEY FORUM?
4R Star businesses will receive detailed instructions on how to be recognized in an ad in the Castro Valley Forum.
HOW DO I GET MY 4R STAR BUSINESS CERTIFICATE?
On the “4R Business, 4R Planet” Program Application, you identified that you would like your certificate mailed, hand-delivered, or presented to you at a CVSan Board Meeting. Certificates will be mailed within 30 days of becoming a 4R Star Business. If you selected hand-delivery, or Board Meeting presentation, CVSan staff will contact you within 15 days to schedule.
THAT’S NOT ALL!
Keep an eye out in CVSan’s Pipeline Newsletter and at www.cvsan.org for additional recognition of 4R Star Businesses!
KEEP UP THE GOOD WORK
Businesses are an important part of CASTRO VALLEY SANITARY DISTRICT’S goal to reduce the amount of solid waste sent to landfills by 75%. We appreciate all of your efforts to reduce, reuse, recycle, and rot. If you wish to make improvements to your recycling program, need more recycling containers or signs, or just need a little more assistance, please call WMAC at 510-613-8751. Thank you for keeping up the good work in helping make Castro Valley a healthier, more sustainable place to live and work!
Bundled Service Means Higher Performance
Effective May 1, commercial trash & recycling services will be combined, offering Castro Valley businesses a better deal. While rates will have to go up, CVSan negotiated on your behalf and made sure the increases are as low, and as manageable, as possible. In return, you’re getting more service.
High performance features of the new collection program include:
- More Predictability – Locked-in rates means less guesswork for you.
- More Savings – More materials accepted in the program means you have the potential to reduce trash and save more.
- Less Hassle – One service provider for trash & recycling means less coordination and a simplified billing process for you.
- Better for the Environment – The new, integrated service structure means more businesses are encouraged to recycle. And that means the environment wins!
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More Recognition – A new award program for high-performance recyclers means positive publicity at no cost to your business.
GET FREE PERSONALIZED HELP MAKING THE SWITCH

Call 510-613-8751 for your free site visit!
To help you maximize the new service benefits and minimize costs, Waste Management is offering free “site assessments” at your place of business. During the assessment, a representative will evaluate your business’s disposal needs and recycling potential, and create a custom service plan proposal.
There will be no additional charge for your new trash & recycling services for the month of April, if you start the program early. So schedule your site visit today!
Requirements for 4R Business, 4R Planet Certification
Congratulations to Castro Valley's "4R Star" Businesses
How do I Become a 4R Star Business?
