Status of the Environmental Cleanup Program Naval Station Treasure - - PowerPoint PPT Presentation

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Status of the Environmental Cleanup Program

Naval Station Treasure Island Presented to the Treasure Island Development Authority

November 19, 2014 Keith Forman BRAC Environmental Coordinator

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Presentation Outline

• Overview of Cleanup Process
• Progress and Status of CERCLA Sites
• Radiological Program
• Transfer Update

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Remedial Investigation (RI) Feasibility Study (FS) Proposed Plan (PP) Record of Decision (ROD) Remedial Design (RD) Remedial Action (RA)

CERCLA Process The steps of the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA)

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Status of CERCLA Sites

• Thirteen sites have been closed
• Eight open CERCLA sites on Treasure Island
• 4 of 8 are post-Record of Decision (21, 27, 30, 31)
• 3 of 8 are Proposed Plan stage (6, 24, 32)
• 1 of 8 is Feasibility Study Stage (12)
• Three open CERCLA sites on Yerba Buena Island (8, 11, 29),

all three are on Caltrans property

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Open CERCLA Sites

Feasibility Study Proposed Plan Post-Record of Decision

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Site 6

• Fire training area for 50 years
• Used as temporary storage

area for soil bins from Site 12

• The Record of Decision

currently in review, to be finalized December 2014

• Navy proposes removing soil

with dioxins, furans, benzene, and manganese; test groundwater for VOCs, manganese, arsenic, and petroleum

Site 6 – Former Fire Training School

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Site 12 – Old Bunker Area/Current Residential Neighborhood

Site 12

• Historically used for ammunition bunkers,

incineration and disposal of solid waste

• Data Gaps Investigation was completed

in October, this data will support a Feasibility Study Addendum in 2015

• Soil contaminants include PCBs, PAHs,

dioxins, and metals, including lead, aluminum, and copper

• Groundwater contamination in one area

(arsenic and weathered petroleum)

• Low-level radiological items are being

addressed under the radiological program

• Work in Solid Waste Disposal Areas

will be complete in 2016. Fieldwork includes demolition of buildings, digging up remainder of solid waste, and doing radiological screening and confirmation

• Remainder of Site 12 to be complete in

2021

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SWDA Westside SWDA Bayside SWDA Bigelow Ct SWDA North Point

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Site 12 – Old Bunker Area/Current Residential Neighborhood (Continued)

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Demolition of Building 1121

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Completed SWDA Bigelow Court radiological, lead, and PCB cleanup in October 2014

Site 12 – Old Bunker Area/Current Residential Neighborhood (Continued)

Land Surveyor verifies depth of excavation at Bigelow Court Completed excavation, prior to backfill 11/19/2014

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Site 21

• Oil recovery area operated

from 1946 to 1995

• Successfully cleaned up

groundwater contamination with bioremediation treatment technologies

• Groundwater and soil gas

monitored semi-annually for chlorinated VOCs

Site 21 – Vessel Waste Oil Recovery Area

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Site 24 – Dry Cleaning Facility

Site 24

• Groundwater area of contamination reduced from 20 acres to ½ acre
• A Proposed Plan for the remainder of the cleanup is being developed;

Navy will issue in 2015

• Groundwater is

monitored semi-annually

• Site boundary has been

modified to support property transfer

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Site 27

• Cleanup objective is protecting

diving ducks; no human health risk

• Dredged 8,766 cubic yards of
• sediments. Placed rock at the

bottom of the excavation

• Project is complete
• Marina controls to protect rock

are being coordinated with TIDA

Site 27 – Clipper Cove Skeet Range

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Site 30

• Navy annually

inspects foundation

• f daycare center
• In 2015, Navy will

perform follow-up to state health and safety radiological survey conducted because of proximity to an historical recycling yard

Site 30 – Daycare Center

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Site 31

• Used during the 1970s as a storage yard, buried construction and burned debris.

Also a radiologically impacted area

• Contaminants include lead, dioxins, petroleum, and PAHs
• Post-Record of Decision excavation is complete; radiological survey is complete
• The site has been restored and the fences have been removed
• The Navy is currently seeking radiological free release of the site

Site 31 – Former Storage Yard

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Site 32 – Former Training and Storage Area

Site 32

• PCBs, dioxins and

metals removed in 2010

• Radiological survey is

complete and results are pending; Navy will issue survey report in early 2015

• Next step will be the

Record of Decision

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Site 33 – Water Line Replacement Area

Site 33

• Record of Decision

directed excavation of arsenic and lead; excavation is complete and the site has been restored

• Precautionary

radiological screening is complete; no radiological contamination was found

• The site was closed in

October 2014

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Radiological Program

Petroleum Site 20 Former Storage Yard Areas Solid Waste Disposal Areas IR Site 31 Sanitary Sewer Line Former Supply Department Salvage Yard (Lot 69) Building 3 Building 233 Sanitary Sewer and Storm Lines Building 3 Sanitary Sewer Line Building 233 Building 461 Area Pandemonium Site II, IR Site 32 Former Salvage Yard and Current Sewage Treatment Plant Waste & Clean Soil Stockpile and Truck Loading & Decontamination Site Pandemonium Site I Navy Laydown Area IR Site 30 Building 342 and Yard Area Building 343 and 344 Navy Contractor Compound IR Site 12 Scoping Survey Area

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Radiological Surveys - Site 12

• Housing area scans were completed
• n August 19, 2014, after 50 full

days of surveying. Two weeks after each scan was complete, the housing provider was given a copy of the results to forward to tenants. A survey completion report issued today (November 19, 2014).

• Samples collected in the 1400 series

housing area for radiological soil concentration data; draft report issued November 6, 2014

• Gamma walkover survey and

scanning conducted in all common areas and backyards; draft report will be issued in December 2014

Radiological Program – Site 12

Technicians scan the interior of a residence

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• Completed four FOSTs

between 2006 and October 2014

• The goal is to complete the

initial transfer to the City of San Francisco in December 2014

Transfer Update

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