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VIDEOS. From Sewer Authority Mid-Coastside (SAM) regular board meeting on Monday, June 8th, 2026 at 7:00pm, as a hybrid meeting. Agenda. Staff Report for Item #4A: “The purpose of the report is to discuss the Contract Collection Services Budget for FY 2026/27 and adopt Resolution No. 2-2026 adopting the Contract Collection Services for Fiscal Year 2026/27.”
More on Sewer Authority Mid-Coastside on Coastside Buzz
More on Half Moon Bay Sewer on Coastside Buzz
More on Montara Water and Sanitary District (MWSD)
More on the Granada Community Park (GCSD) on Coastside Buzz
More on GCSD on Coastside Buzz

Joint Powers Agreement (JPA) was created in 1976 between City of Half Moon Bay (HMB), Granada Community Services District (GCSD) and Montara Water and Sanitary District (MWSD)
Original JPA 1976.
After 8 amendments and Consolidated Agreement was created in 2011.
Sewer Authority Mid-Coastside (SAM) Meetings ~ 2nd & 4th Mondays @ 7:00pm
SAM Agendas and Zoom Links
Subscribe to Agendas. Watch remotely. Comments and questions by email.
SAM Meeting Videos via Pacific Coast TV
Where Does Your Poop Go ~ Virtual Video Tour!
Interactive “Story Map” Tour
Contact Us
Our regular office hours are 7:00 a.m. through 4:00 p.m., Monday through Friday, excluding holidays. The Authority can be reached 24-hours a day at: (650) 726-0124.
Our Address is:
Sewer Authority Mid-Coastside
1000 Cabrillo Hwy N.
Half Moon Bay, CA 94019

SAM Board from left. Paul Nagengast (HMB), Nancy Marsh (GCSD), Scott Boyd (MWSD), Debbie Ruddock (HMB), Barbara Dye (GCSD), Kathryn Slater-Carter (MWSD).
The Sewer Authority Mid-Coastside (SAM) provides wastewater treatment services and contract collection maintenance services for a population of approximately 24,000 in the following areas:
- City of Half Moon Bay
- El Granada
- Miramar
- Montara
- Moss Beach
- Princeton by the Sea
SAM Directors
SAM is a joint powers authority (JPA) created by its three member agencies: City of Half Moon Bay (City), Granada Community Services District (GCSD), and the Montara Water and Sanitary District (MWSD).
The JPA is a separate, independent, public agency created by the member agencies to perform functions and share powers common to the member agencies. Those powers are outlined in a joint exercise of powers agreement (Agreement). The Agreement creating SAM can be found on the Documents page.
Each Agreement identifies how the independent agency will be governed. In the case of SAM, each member agency appoints two members from its governing board to represent it on the SAM Board of Directors, for a total of six directors.
The Agreement also establishes the weight of each director’s vote. The vote by each representatives from the City is given the weight of two votes. The vote by each representative from GCSD and MWSD is given the weight of one vote. The total number of possible votes is eight. A quorum is a minimum of five votes and resolutions require at least six votes to pass.
2026 SAM Directors
Kathryn Slater-Carter ~ Chair, Representing the Montara Water & Sanitary District
Nancy Marsh ~ Vice Chair, Representing the Granada Community Services District
Paul Nagengast ~ Secretary/Treasurer, Representing the City of Half Moon Bay
Deborah Ruddock ~ Director, Representing the City of Half Moon Bay
Barbara Dye ~ Director, Representing the Granada Community Services District
Scott Boyd ~ Director, Representing the Montara Water & Sanitary District



