waikane valley impact area remedial design phase · 2014. 2. 12. · introduction • background...
TRANSCRIPT
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Waikane Valley Impact Area Remedial Design Phase
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Topics
• Introduction & Background • Status of Decision Document • Remedial Design Phase• Remedial Action Phases
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Introduction
• Background– Final SI Report- (Nov 13, 2009)– RAB Established - (April 2009)– Final RI Report - (Aug 3, 2011)– Final FS Report - (Jan 2, 2012)– Final Proposed Plan - (Jan 2, 2012)– Final Decision Document - (Feb 26, 2013)– Remedial Design (current)
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Status of Decision Document
• Final DD – Defines the Selected Remedy to meet
Remedial Action Objectives (RAOs)• Public Comments Received/ Incorporated• Signed by HDOH / MCB Hawaii
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Remedial Design Phase
• Detailed Design that outlines the requirements to implement the Selected Remedy from the DD.
• RD is incorporated into the Remedial Action Contractor's Scope of Work
• Included Public Input on Corridor Designs
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Selected Remedy
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RAB Site Visit/ Input to the RD
RD Team and RAB members conducted site visit on 1 September 2012 for the purposes gathering public input for the RD
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RAB Site Visit/ Input to the RDCont.
• Suggested screening methods:– Locating fencing behind terrain features (ridgelines
and gullies)– Offsetting fencing behind areas of dense vegetation– Use of “cattle fencing” in select areas (steep terrain)
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RAB Site Visit/ Input to the RDCont.
• RD team marked suggested fencing routes using Global Positioning Systems (GPS) based on RAB input.
• GPS points for fencing locations, terrain, and other significant features were translated to design maps for the RD.
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Kamaka Shrine Corridor
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Waikane Spring Corridor
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RA Map: Surface Clearance Plan
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RA Map: Subsurface Clearance Plan
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RA Map: Fencing and Signage Plan
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Remedial Design Schedule
• Final RD (March/April 2013)• RA Contract Award (29 March 13)• RA Field Work (2013-2014)• Long-term Maintenance