Port-Wide Sewer System Management Plan(SSMP) - Port of Oakland

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main sources of runoff into the collection system. Disconnecting storm drain cross connections and eliminating other I/I sources will reduce peak flows into the system. Costs associated with an I/I reduction program can vary greatly and are difficult to estimate in the planning stage. Projects could range from closing open clean-outs to constructing new storm drain pipelines to disconnect storm drain inlets from the sanitary sewer. To develop the capital improvement projects associated with an I/I reduction program, we assumed that roughly 25,000 feet (4.7 miles) of 24-inch diameter storm drain pipes would be constructed through year 2030 and beyond. As with the sewer main rehabilitation and replacement projects, the I/I reduction projects were distributed to the Aviation and Maritime divisions based on the total length of pipe within each division. 9.2.5.5 Operations and Maintenance (Sewer Main Cleaning/CCTV) CCTV inspection and surveys of selected sewers in the Port have revealed that there are locations in the Port where sediment, FOG, large debris, and other materials have been deposited. This is primarily a maintenance issue; however, a significant amount of sediment build up or the presence of objects (e.g. concrete material) can reduce the capacity of a sewer mains, which may clog sewers and result in SSOs. To reduce this potential, it is recommended that the Port increase the cleaning frequency of those pipelines which have been identified to have sediment deposits, root intrusions, or other maintenance issues. As discussed in Chapter 5, a reasonable goal for the Port is to proactively clean roughly 20 percent of the total length of its gravity sewers each year, thus providing a rotation in which every sewer main is cleaned at least once every five (5) years. This equates to roughly 7 miles of sewer mains cleaned annually. It is further recommended that sewer mains and manholes receive a CCTV inspection every ten (10) years, following cleaning. Since sewer cleaning should occur every 5 years and CCTV work every 10 years, the CCTV work should happen every other occasion that a sewer is cleaned. This will help to verify that the cleaning was properly performed and to identify structural and condition problems in the sewers and manholes. To develop the maintenance cost impacts associated with a sewer main cleaning/CCTV program, we assumed that the Port would spend roughly $300,000 per year in the first, third, and fifth round of sewer main cleaning and CCTV program. This equates to $1,500,000 per phase for the first, third, and fifth round of sewer cleaning (Phase 1, 3, and 5). Because CCTV inspections are recommended on a ten (10) year schedule, we assumed that the Port would spend roughly $200,000 per year for the second and fourth rounds of sewer main cleaning (not accompanied by CCTV). This equates to $1,000,000 per phase for the second and fourth round of sewer cleaning (Phase 2 and 4). The operations and maintenance costs were distributed to each division (e.g., Aviation, Maritime, and Commercial/Real Estate) based on the total length of pipe within each. The sewer cleaning and CCTV costs are included in Chapter 5 of the SSMP. May 2010 9-12 pw://Carollo/Documents/Client/CA/Port of Oakland/8239A00/Deliverables/Ch09 (FinalA)
9.2.6 Schedule The improvement projects outlined in the SECAP are prioritized based on their urgency to mitigate existing deficiencies and to correct pipeline or lift station condition problems. It is recommended that improvements to mitigate existing deficiencies be constructed as soon as possible. The projects were grouped into the following timeframes: • Years 2011 through 2015 • Years 2016 through 2020 • Years 2021 through 2025 • Years 2026 through 2030 • Post 2030 Each CIP is itemized by phase in Table 9.3 and a summary by phase is included in Table 9.4 for reference. Table 9.5 provides a summary of the highest priority improvement projects. Table 9.4 Capital Improvement Cost Summary Port-Wide Sewer System Management Plan Port of Oakland Improvement Type 2011-15 ($, mill.) 2016-20 ($, mill.) Implementation Phase 2021-25 ($, mill.) 2026-30 ($, mill.) 2030 + ($, mill.) Total ($, mill.) Pipeline Capacity 0.3 0.0 0.0 0.0 0.0 0.3 Lift Station Rehab./Replace. 2.4 3.4 3.1 3.2 2.4 14.6 Pipeline Rehab./Replace. Infiltration/Inflow Reduction 3.1 3.0 2.2 2.6 2.9 13.8 1.4 1.6 2.2 2.5 2.9 10.6 Total Notes: 7.2 8.1 7.5 8.4 8.2 39.3 1. Costs are based on the Engineering News Record Construction Cost Index for San Francisco of 9,728 (March 2010). May 2010 9-13 pw://Carollo/Documents/Client/CA/Port of Oakland/8239A00/Deliverables/Ch09 (FinalA)
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May 2010
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3.4.1 Receipt of Information Regard
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8.2.7.1 Consultation of Operational
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Figure 3.1 SSMP Organizational Char
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[ Revision Date: April 23, 2010 ?Ò
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and maintained by the East Bay Muni
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Table 1.1 Service Population Estima
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As part of the GWDRs, all agencies
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1.9 ACKNOWLEDGEMENTS Carollo Engine
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1.11 REFERENCE MATERIAL The followi
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2.3 PORT SSMP GOALS In order to ach
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County Environmental Health Agency,
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• Facility Support Supervisor. Th
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3.3.1.5 Commercial/Real Estate Divi
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for reporting SSOs. For more inform
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2. Category 1 SSOs that Do Not Reac
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Chapter 4 LEGAL AUTHORITY This chap
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noted in Section 4.3.4 and Section
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“The Director [of EBMUD] may requ
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cleaning of the sanitary sewer syst
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10'' Legend 6'' ) Clarifier ) Drain
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BEACH FRWY Legend LILAC ST MAGNOLIA
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Table 5.1 Sanitary Sewer Collection
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Page 54 and 55: Table 5.4 Aviation Sewer Maintenanc
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Page 58 and 59: BEACH FRWY Legend LILAC ST MAGNOLIA
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Page 66 and 67: were created for each unique pipeli
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Page 70 and 71: To comply with the GWDRs and the SW
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Page 86 and 87: Table 8.2 Best Management Practices
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Page 90 and 91: Table 8.3 FOG Related Sanitary Sewe
Page 92 and 93: and redundancy in pumping capacity,
Page 94 and 95: Table 9.2 Minimum Slope for New Sew
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Page 104 and 105: Table 9.5 High Priority Improvement
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Page 110 and 111: Chapter 11 SSMP PROGRAM AUDITS This
Page 112 and 113: corrective actions and by the need
Page 114 and 115: Table 11.2 Example Sewer Maintenanc
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Page 118 and 119: Chapter 12 COMMUNICATION PROGRAM AN
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Port-Wide Sewer System Management Plan(SSMP) - Port of Oakland

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