Wastewater Master Plan San Francisco Public Utilities Commission Department of Environment

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WastewaterMaster PlanSan Francisco Public
Utilities CommissionDepartment of Environment
March 13, 2006
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Dry Weather
North Point Outfalls
North Point Facility
Channel T/S
BAYSIDE DRAINAGE
WESTSIDE DRAINAGE
Bay Outfall
67 MGD
17 MGD
Southeast Plant
Oceanside Plant
Southwest Ocean Outfall
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Wet Weather
North Point Outfalls
North Point Facility
150 MGD
Channel T/S
BAYSIDE DRAINAGE
WESTSIDE DRAINAGE
Bay Outfall
250 MGD
65 MGD
Southeast Plant
Oceanside Plant
Southwest Ocean Outfall
110 MGD (decant)
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Past Master Plans
1993 Oceanside Plant
1850 Brick sewers constructed
1899 Master Plan
1974 Master Plan
1935 Master Plan
2000
1800s
1952 Southeast Plant
1932 McQueen Secondary Treatment Plant (Golden
Gate Park)
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Wastewater Treatment
Raw
Primary Effluent
Secondary Effluent
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Annual Flows
Decanted Combined Sewer Discharge 2,500
MG (6.6)
Decanted to SWOO 1,300 MG (3.3)
Primary Treatment 3,600 MG (9.3)
Secondary Treatment 30,800 MG (80.7)
Prior to WW System Improvements
After Implementation of 1974 MP
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Annual TSS Loads
To Islais Creek 230 tons (0.5)
To Outfalls 2,800 tons (5.7)
Decanted Combined Sewer Discharge 940 tons
(1.9)
Prior to WW System Improvements
Removed 45,600 tons (92)
After Implementation of 1974 MP
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1974 Master Plan Improvements
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Oceanside WPCP
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Southeast WPCP
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North Point Wet Weather Facility
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Transport Storage Box
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Problems and Issues

• Aging Infrastructure
• Flooding
• Seismic Reliability
• Biosolids
• Overflows into the Bay and Ocean
• Southeast Treatment Plant

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Old Pipes and Buildings
Digester roof collapse at Southeast Treatment
Facility
Example of Sewer Corrosion
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Flooding
Cayuga Street, Feb. 2004
Street Backup
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Current Flood Prone Areas
Storm Watch Map
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Seismic Reliability
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Biosolids (Solid Wastes)
- Over 70 of our Biosolids is shipped to Solano
County.
- In 2007 the Solano ordinance that regulates
Land Application expires.
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Overflows in to Bay and Ocean
Baffle Screen
Solids Settling
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Wet Weather CSO Discharge
8 overflows in Yr 1997-1998 due to El Nino

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Regulatory Issues
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Southeast Treatment Plant
Highway 280
Evans Avenue
Jerrold Street
Residential/Commercial Areas
Phelps Street
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Collection System Odor Complaints 2001-2002
363 odor complaints
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Wastewater Master Plan Schedule
2006
2007
Jan
Feb
Mar
Apr
May
Jun
July
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
May
Jun
1. Project Introduction
2. Identify Evaluate Conceptual Alternatives
3. Evaluate Viable Alternatives
Draft Master Plan
4. Recommend Best Apparent Alternative
Project Phase
Jan 10
SFPUC Commission Workshops
Neighborhood Presentations
Technical Advisory Committee Meetings
Citizen Advisory Committee Meetings
Public Workshops
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Master Planning Environmental Review Schedule
2005
2008
2007
2009
2006
Master Planning Element
Technical/Engineering Analysis Environmental
Documentation Public Involvement
Final WWMP Final EIR
Best Apparent Program
Draft WWMP
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Guiding Principles - WWMP

• Protection of Public Health and Safety
• Protection and enhancement of the natural
  environment
• Open and transparent planning process

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Evaluation Criteria

• Environmental/ Social/ Cultural
• Water Impacts
• Land Impacts
• Air Impacts
• Use of Resources/Sustainability
• Land
• Fuel and Electricity
• Chemicals
• Materials (Construction, OM)

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Evaluation Criteria

• Functional and Technical
• Reliability/ Redundancy
• Ease of Operation/ Implementation
• Performance
• Regulatory Compliance
• Reuse/Disposal Issues
• Economic
• Capital and OM Costs
• Life Cycle Costs
• Cost Benefit Ratio
• Rate Impacts

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Conservation of Natural Resources
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Think Outside the Box
Recycled Water at Harding Park
Pipe installation at Lake Merced
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Think Outside the Box
Roof of City Hall in Atlanta, Georgia
Permeable Sidewalks
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Next Steps

• Form Interdepartmental Working Group
• Park Rec
• Port
• Dept. of the Environment