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In An Emergency:

Water Emergencies: Call MWSD at (650) 728-3545
Sewer Emergencies: Call SAM at (650) 726-0124
Dial 911 for life-threatening and safety


Legal and Regulatory

Approved Public Works Plan

Approved by the Coastal Commission December 2013. The plan includes 1.1 million gallons of new water storage, the Alta Vista well, and a new water treatment facility.

Approved Public Works Plan
Water & Sanitary Code Updated February 2017

The Water and Sanitary Code contains Ordinances (laws) passed by the Board of Directors and enforced by the District.

Water & Sanitary Code
Sanitary Sewer Overflows

Click on the link below to see a record of Sanitary Sewer Overflows. This is tracked by Sewer Authority Mid-Coastside, the regional sewage treatment plant services and sewer system maintenance provider.

Sewer System Management Plan (SSMP)

The Sewer System Management Plan (SSMP) has been prepared in compliance with requirements of the San Francisco Bay Regional Water Quality Control Board (RWQCB) pursuant to Section 13267 of the California Water Code, and the State Water Resources Control Board (SWRCB) Order No. 2006-0003-DWQ.

Sewer System Management Plan:
  • Element I: Goals
  • Element II: Organization
  • Element III: Overflow Emergency Response Plan
  • Element IV: Fats, Oils and Grease Control Program
  • Element V: Legal Authority
  • Element VI: Measures and Activities
  • Element VII: Design and Construction
  • Element VIII: Capacity Management
  • Element IX: Monitoring, Measurement, and Program Modifications
  • Element X: SSMP Audits
  • Element XI: Communication Plan
SSMP Attachments 1-8:
  • Attachment 1: SAM JPA
  • Attachment 2: SAM Member Agency Maintenance Agreement
  • Attachment 3: Overflow Emergency Response Plan (OERP) Handbok
  • Attachment 4: Sanitary Sewer Overflow and Backup Response Plan Overview
  • Attachment 5: Pump Station Flow Statistics, Pump Station Network, Sewer Drainage Zones, Pump Station Vicinity Map, Pump Station Operating Procedures Workbook
  • Attachment 6: Pump Station Site Specific Emergency Response Plans
  • Attachment 7: State of CA SSO Public Report, 2007-2014 - CIWQS
  • Attachment 8: MWSD SSO Graphs Over Last 7 Years
SSMP Appendices A-F:
  • Appendix A: MWSD Sanitary Sewer Facility Maps
  • Appendix B: SAM Sewer System Key Map (For Reference Only)
  • Appendix C: State SSMP Requirements-2005, 2006
  • Appendix D: State SSO Reduction Program and Summary Report-2013
  • Appendix E: State WDR Requirements-2013
  • Appendix F: State ASBS Drainage and Discharge Requirements-2012, GIS Map of Fitzgerald Drainage Basin