Press Releases

Review our most recent press releases here.


  • Friday, March 20, 2015 - 9:12am

    On Friday, March 13th, Castro Valley Sanitary District (CVSan) in coordination with Waste Management of Alameda County, Inc. (WMAC) hosted a free Davis Street Transfer Station (DSTS) tour for CVSan residents and business owners.  Attendees viewed organic and garbage processing, the residential and commercial material recovery facilities (MRF), and the residential transfer facility.

    Learning about WMAC’s Single Stream Recycling Facility

  • Thursday, March 5, 2015 - 3:54pm

    Castro Valley Sanitary District
    Wins California Water Environment Associate Award

    Castro Valley Sanitary District (CVSan) is pleased to announce they were recently awarded the California Water Environment Association’s (CWEA) Wastewater Collection System of the Year award for the San Francisco Bay Area. The award honors individual CWEA members, member-agencies, and others in California for their good work done in ensuring public health and protecting the environment. Among other things, CVSan was evaluated for its performance in operations and maintenance, safety, budget and long-range planning, and regulatory compliance. CVSan last won this distinction in 2002. As an award winning agency, CVSan will compete with other similarly-sized wastewater collection agencies on a state-wide level.

    “I am proud of all the hard work our team has put into winning this award.  What a great group of guys!” stated Roland Williams, General Manager.

    CVSan is a small public agency organized under the Health and Safety Code of the State of California. As a California Special District, CVSan has responsibility for the operation and maintenance of the sanitary sewer collection system within the unincorporated community of Castro Valley. CVSan is also in charge of the administration of a refuse collection franchise, 25% interest in the Oro Loma Sanitary District wastewater treatment facility, implementation and administration of State and local mandated recycling programs, as well as participation in sub-regional wastewater discharge and solid/hazardous waste management agencies.

  • Friday, February 27, 2015 - 12:52pm

    CVHS student and Environmental Commissioner, Esiason Rodriguez, spearheaded the task of organizing Castro Valley High School’s fourth waste audit held on Saturday, February 7th.  The audit was conducted as part of CVSan’s Green Ribbon Schools Program.  The results of the audit revealed what materials could have been placed in the recycling or organics carts. 

    The CVHS team of 75 high school students from Leadership, the Smart Energy Club, and others, along with two teachers, and CVSan staff took on the challenge to sort through an entire day’s worth of garbage produced by 3,000 CVHS students and staff. 

    The determined and enthusiastic group of students sorted through 91 bags of garbage in one hour!  In this hands-on learning experience, students found out that of 1,729 gallons of garbage generated from CVHS the Friday before, only 21% was actually garbage, and therefore a total of 79% could have gone in the recycling (30%) or organics (49%). 

    The waste audit also showed that CVHS reduced the overall garbage produced on campus by 25% compared to last year’s data!  This is a successful step in the right direction for a school the size of CVHS and a great opportunity for students to determine additional ways to reduce the amount of garbage, organics, and recycling going into the landfill.

    Great job Castro Valley High School for committing to see what’s in the garbage and continuing to reduce waste at school!  

    Below, are a few photos of the day’s activities, including two special volunteers!



    In the photo above (lower right), CVHS Seniors Alejandro Gonzalez and Jenna Sparks have participated in the CVHS Waste Audit for the past four years since they were freshmen! 

    For an electronic copy of these photos, please contact Michelle at michellew@cvsan.orgor (510) 537-0757 ext. 102.

  • Thursday, February 12, 2015 - 4:55pm

    Castro Valley Sanitary District (CVSan) will observe President’s Day, Monday, February 16th as a Holiday.  CVSan offices will be closed.  Please call (510) 506-5821 for sewer emergencies.  For information regarding CVSan services and programs, visit

    Waste Management of Alameda County, Inc. (WMAC) will not observe the Presidents Day Holiday.  Recycling, organics, and garbage collection services will happen as scheduled.  WMAC offices will be open.  For solid waste service questions, please call WMAC at (510) 537-5500 (residential) or (510) 613-8700 (commercial/business).  WMAC 98th Avenue Cashier, Hayward Pay Station, and the Call Center will be open Monday, February 16th.



  • Thursday, February 12, 2015 - 8:49am

    In order to make it easier and more convenient for businesses to reduce waste and save money, CVSan is now offering free short training movies online!  The recently published movies from CVSan offer helpful instructional tips in the following areas: Organics, Recycling, Zero Waste, and the 4R Business, 4R Planet Program.

    What is the best way to utilize the training movies?  The short movies (approx. 2 to 3 minutes each) can be used as introductions, tips, or refreshers for your business recycling and/or organics programs.  In CVSan, collection rates for organics cart service are less than the cost of garbage cart service, which can add up to a lot of savings.  So, the more you and your staff know about reducing waste, the better! 

    For more information, and to watch the movies, please visit the CVSan website at  To inquire about CVSan Technical Assistance to reduce waste and cost at your business, please contact CVSan at (510) 537-0757 ext. 112.  

    The Zero Waste Movie (shown above) has tips to help businesses go beyond recycling and organics

  • Thursday, February 12, 2015 - 8:41am

    As a part of CVSan’s Green Ribbon Schools Program, on Thursday, December 18th, Castro Valley Adult School completed the first waste audit of the school year.  CVSan staff and the Castro Valley Adult School team of 9 students and 3 teachers had a great time sorting through 1 day’s worth of garbage from the school to see what could actually have been placed in the recycling bin or organics carts. 

    In this hands-on learning experience, students found out of 96.25 gallons of garbage from the day before, only 11% was actual garbage and therefore a total of 89% could have gone in the recycling or organics cart.  The students learned there is still work to be done to educate fellow students, teachers, and staff how to sort their waste on campus.  Last year, Castro Valley Adult School reduced their garbage service by 1 cubic yard and added outdoor recycling, organics, and garbage containers in the campus courtyard.  Nice job Castro Valley Adult School for continuing to reduce your waste at school and keep up the good work!

    Below is a photo of the students who participated in the waste audit.

    For an electronic copy of this photo, please contact Michelle at or (510) 537-0757 ext. 102.

  • Thursday, February 12, 2015 - 8:38am

    CVSan is opening 2015 registration to Castro Valley Sanitary District residents and business owners to attend a free tour of the Davis Street Transfer Station (DSTS) in San Leandro on Friday, March 13, 2015.

    DSTS processes and sorts 4,000 tons of materials a day with 4 state-of-the-art processing facilities, including a brand new Leadership in Energy and Environmental Design (LEED) Gold certified organics building, single stream materials recovery facility that houses a high-tech optical sorter which uses infrared light and manual sorters that separate materials with precision and speed.

    Most attendees find the 3 hour tour very interesting and can’t wait to walk through the processing facility and ask those “Where do I put this?” questions of DSTS and CVSan staff and learn what happens to their organics, recycling, and garbage once it leaves the curb.

    To register please visit  Please note this is the only tour CVSan is offering and registration is limited.

    To reduce vehicle emissions and make the tour more enjoyable, CVSan provides transportation to the facility free of charge.


  • Thursday, December 18, 2014 - 5:27pm

    Castro Valley Sanitary District (CVSan) hosted a Waste Management of Alameda County (WMAC) Driver Appreciation Breakfast and Awards Ceremony today at WMAC offices in Oakland.

    WMAC driver Aurelio Ochoa was recognized for Fewest Missed Pick-Ups for Route #VW (Recycling) for the past six months.

    WMAC driver Michael Gonzales was recognized for Outstanding Customer Service for Route #VB (Garbage) for the past six months.

    WMAC driver Michael James Johnson was recognized for Excellent Cart Handler for Route #VC (Garbage) for the past six months.

    CVSan would like to thank all WMAC drivers and staff for their service in the collection of recycling, organics and garbage.

    — 30 —

  • Friday, November 14, 2014 - 2:04pm

    Veterans Day Holiday

    CVSan Closed 11/11

    WMAC Open 11/11

    Castro Valley Sanitary District (CVSan) will observe Veterans Day, Tuesday, November 11, 2014 as a Holiday.  CVSan offices will be closed. Please call (510) 537-0757 for sewer emergencies.  For information regarding CVSan services and programs, visit

    Recycling, organics, and garbage collection services will happen as scheduled.  However, Waste Management of Alameda County (WMAC) office on 98th Avenue and Hayward Pay Station will be closed.  For solid waste service questions, please call (510) 537-5500 (residential) or (510) 613-8700 (commercial/business).

    Thanksgiving Day Holiday

    CVSan Closed 11/27-28

    WMAC Closed 11/27 (collection services 1 day later)

    WMAC Open 11/28 except 98th Avenue Cashier & Hayward Pay Station

    CVSan will observe the Thanksgiving Day Holiday on Thursday and Friday, November 27-28, 2014.  CVSan offices will be closed.  Please call (510) 537-0757 with sewer emergencies.  For information regarding CVSan services and programs, visit

    WMAC will observe Thursday, November 27th as a Holiday.  WMAC 98th Avenue Cashier and Hayward Pay Station will be closed November 27-28th.  WMAC Call Center will be open on Friday, November 28th.  Therefore, recycling, organics, and garbage collection services will be one (1) day later than usual November 28-29, 2014.  Thursday’s collection will be on Friday, and Friday’s collection on Saturday.

  • Tuesday, October 21, 2014 - 2:48pm

    Employees go out of their way to help Castro Valley businesses reduce waste and employees of businesses in CVSan’s 4R Business, 4R Planet Recognition Program go even further.  Program participants, or “4R Stars” have high recycling and composting or “diversion” rates (well over 60%) in large part due to the efforts of their employees.  Castro Valley Sanitary District (CVSan) recognized 4R Star employees during the first ever CVSan 4R Star Employee Recognition Event at CVSan offices on Friday, October 10, 2014.  All 90 plus 4R Star businesses were invited.   

    Awards were given out to the following employees:

    • The Leadership Award:Shay Knudsen of Knudsen’s Ice Creamery (see left photo below).
    • The Kitchen Champion Award:  Graciela Reyes of His Growing Grove (see left photo below).



    (From left to right: Shay Knudsen of Knudsen’s Ice Creamery and Graciela Reyes of His Growing Grove)

    Approximately 20 people were in attendance, including staff from the Castro Valley Eden Area Chamber of Commerce, His Growing Grove, Knudsen’s Ice Creamery, First Presbyterian Church, Aroma Cuisine, Groveway Veterinarian Hospital, and Castro Valley Unified School District Business Office.  Castro Valley Sanitary District (CVSan) Board member Ralph Johnson, General Manager Roland Williams, and staff members Naomi Lue and Jordan Figueiredo were in attendance. 


  • Monday, October 20, 2014 - 1:55pm

    On August, 5, 2014 the CVSan Board of Directors adopted CVSan’s Zero Waste Strategic Plan, and on October 7, 2014, adopted a Zero Waste Goal by 2029.

    Over the past 25 years, CVSan’s Board and staff have worked together to create and implement a transformative vision, one that strives to strategically work with the single and multi-family residential, commercial business, and school communities.  CVSan has provided leadership in environmental education and a practical, hands-on approach to program development and implementation.  Castro Valley Sanitary District (CVSan) has long practiced and promoted the 4Rs (Reduce – Reuse – Recycle – Rot) to reduce waste and conserve resources.  As we continue to practice the 4Rs, a higher goal of Zero Waste is ahead. 

    In 2014, CVSan worked with its Zero Waste Consultant, HDR, Inc. and a range of businesses, agencies, schools, community groups, and citizens to put together a Zero Waste Strategic Plan that will guide us on the path to Zero Waste.  The Plan explores the past, present, and future of CVSan’s Path to Zero Waste and is a living document.  The Plan highlights some of CVSan’s significant achievements and partnerships with the Castro Valley community, reductions of material to landfill, and award-winning recycling and organics diversions program and outreach.  To read CVSan’s Zero Waste Strategic Plan or learn more about CVSan’s Path to Zero Waste, please visit our website at