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SAN FRANCISCO RECREATION AND PARKS
900 INNES REMEDIATIONVOLUNTARY SITE CLEAN-UP
PRESENTED BY CHARLENE ANGSUCO, PROJECT MANAGER, SFRPDPRESENTED APRIL 16, 2020
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INTRODUCTIONS
• City of San Francisco Recreation and Parks Department
• Regional Water Quality Control Board Case Officer
• Anchor QEA, LLC• Boudreau Associates
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PROJECT LOCATION
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SITE HISTORY
1969. Photo of Scow Schooner (Alma) being repaired at 900 Innes (Courtesy: Maritime Research Center, SF Maritime National Historical Park)
1976. Photo of Shipwright’s Cottage (Courtesy: SF Planning Department)
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SITE HISTORY - SLIPWAY
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SITE CONDITIONS
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SITE CONDITIONS
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SITE CONDITIONS
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SITE CONDITIONS
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SITE CONDITIONS
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SITE CONDITIONS
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REMEDY DEVELOPMENTPROCESS & IMPLEMENTATION
• Acquisition and Preliminary Site Investigations
• Extensive Site Investigations and Environmental Review
• Remedial Design Development
• Regional Water Quality Control Board RAP Public Process
• State and Federal Permitting and Remedial Design Refinement
• Implementation & Close Out
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OVERALL CLEANUP APPROACH AND GOALS
• Compatible with park/public use• Remedy provides a high level of health
protection• Remove surface soil (on land) and
sediments (in water) across entire site• Replace surface with clean fill material• Backfill prevents exposure to underlying
native soil
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REMEDIATION OVERVIEW
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Excavate 4 feet and backfill (purple)
Capping Areas
Excavate 5 feet and backfill (yellow)
Excavate 2 feet and backfill (green)
Temporary Water Barrier
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MAP OF STRUCTURES IN BCDC JURISDICTION
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QUANTITIES OF FILL REMOVED AND REPLACED IN BCDC JURISDICTION
Activities within BCDC Bay Jurisdiction (below MHW)Fill Removed Fill Placed
Area (sf) Volume (cy) Area (sf) Volume (cy)Removal of Structures 12,649
(0.29 acres)316.4 -- --
Sediment Remediation 38,833 (0.88 acres)
7,20038,833
(0.88 acres)7,400
Areas 1 and 2 localized sand cover/cap NA NA
17,424(0.4 acres)
800
Temporary fill – Water Barrier NA NA
9,148(0.21 acres)
3,407
Total Fill -- -- 65,405 11,611Net Fill 17,427 1,000
Opening the bay (Post-remediation)Total Bay surface area
opened from removal of structures
12,649 sf (0.29 acres)
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QUANTITIES OF FILL REMOVED AND REPLACED IN BCDC JURISDICTION
Activities within BCDC Shoreline Band JurisdictionFill Removed Fill Placed
Area (sf) Volume (cy) Area (sf) Volume (cy)Solid Fill from removal of
structures 25,714 NA -- --
Soil Remediation 78,408 11,600 78,408 11,600
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INTERIM PATH
• BCDC condition of development• Construction conditioned on
timing of future development of 900 Innes Park
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GRANT PARTNERSHIPS
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900 Innes (Rec Park)
Brownfields Program& Water Division
State of California
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CORE PARTNERS
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EDP PROCESS
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FUTURE PUBLIC PARK
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FUTURE PUBLIC PARK
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