1. City of Sausalito Sewer CIP 2015-2017 Vivian Housen, P.E. V. W. Housen & Associates March 25, 2015

2. City of Sausalito Sewer System 28 miles of sewer pipe 3 City-owned and SMCSD-operate pump stations Serving a population of 7,000+

3. Sewer System Performance (SSOs) Primary Causes of Sanitary Sewer Overflows Have Been Structural Defects and Roots (Through Faulty Pipe Joints) Roots 44% Structural Defects 33% Fats, Oils, and Grease 10% Debris 10% Capacity 3%

4. Capital Improvement Program OBJECTIVES Repair highest risk defects Remove Inflow and Infiltration Coordinate with other Priorities Roadway improvements ADA improvements SMCSD projects TIMELINE Bond requires completion of Phase I within three calendar years

5. Completed! Spinnaker and Anchor Pump Station Project

6. Year 1 of New CIP Focuses on Three Areas Hurricane Gulch (Urgent Sewers Project) Beach Street Sewer Rehabilitation Gate 5 Road Sewer Rehabilitation

7. Urgent Sewers Project Addresses Pipes with Severe Structural Defects Repairs Pipe and Lower Laterals on 3 rd Street, 4 th Street, Main Street, & Miller Avenue Also reviewing Main Street between Lower Crescent & 4th, which is on 2015 Paving Program Estimated Construction Cost: $600,000

8. Gate 5 Road Project Reduces Tidal Inflow and Associated SSOs Repairs Pipe and Lower Laterals on Gate 5 Road, Harbor Way, and Lower Coloma Street Solution Needs to Consider Existing Asbestos Cement Pipe and Potential Shipyard Spoils Opportunity for Coordination with Roadway Improvement Project Estimated Cost: $850,000

9. Beach Street Project Develops Plan for Partially Submerged Pipe Condition of existing pipe is not known Location within tidal zone complicates inspection and rehabilitation Permits have long lead times – start obtaining approvals now, anticipating future CIP Estimated cost TBD during preliminary design

10. Years 2 and 3 Address Critical but Less Urgent Issues Throughout System CCTV Inspection will confirm and refine project priorities Projects remove I&I and replace aging infrastructure Projects will be coordinated with future pavement replacements and ADA improvements Storm drain needs will also be reviewed Total available construction budget is approximately $5.5M over 3 years

11. The CIP Jump-Starts the City’s Asset Management Cycle Effective Asset Management: Continuous assessment Preventive maintenance Strategic action

12. City of Sausalito Sewer CIP 2015-2017