Los Osos Basin Management Committee (BMC)

Public Draft 2021 Annual Monitoring Report 

The Public Draft 2021 Los Osos Basin Annual Monitoring Report (AMR) describing activities related to the Los Osos Basin Plan, groundwater monitoring program, and the results and interpretations of these findings is available for review. Comments on the Public Draft Annual Report are due May 18th, 2022. The Public Draft AMR will be presented to the Basin Management Committee (BMC) at their May 18th, 2022 Meeting and the Final Draft AMR will be considered for approval at the BMC’s June 15th Meeting. BMC Meetings are held at 1:30 PM at the Los Osos Community Services District Board Room, located at 2122 9th Street Suite 106, Los Osos, CA 93402. Please submit comments on the Public Draft AMR to [email protected] or provide them during public comment at the BMC meetings.

Meeting Calendar - Agendas and Minutes

Audio recordings of the meetings are available at http://slo-span.org/

The Los Osos BMC Board of Directors hold regular meetings on the 3rd Wednesday of every month starting at 1:30pm. 

Committee Members

  • Mark Zimmer - Golden State Water Company (Director)
  • Matt Cook - Golden State Water Company (Alternate Director)
  • Marshall Ochylski - Los Osos Community Services District (Director)
  • Chuck Cesena - Los Osos Community Services District (Alternate Director)
  • Bruce Gibson - San Luis Obispo County (Director)
  • Kate Ballantyne - San Luis Obispo County (Alternate Director)
  • Charlie Cote - S&T Mutual Water Company (Director)
  • Christopher Gardner - S&T Mutual Water Company (Alternate Director)

How Do I get Involved?


For more information, please contact Dan Heimel, BMC Executive Director, by phone at (805) 457-8833 x104, or by email at [email protected]

Los Osos Groundwater Basin Management Committee mailing list

Click here to subscribe to the Los Osos BMC email notification list!

Contact Public Works via web form, email, or call us at (805) 781-5252.