Readville 5 Yard Facility, PIP Meeting
Readville 5 Yard FacilityPublic Involvement Plan MeetingNovember 5, 2008
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BENJAMIN ST
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FLEET ST
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MILTON ST DANNY RD
QUINCY AVE
PINEFIELD RD
WHITING AVE
MARION ST
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CROSS ST
ASHCROFT
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CHESTERFIELD ST
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Massachusetts BayTransportation Authority
Readville 5 Yard Facility, PIP Meeting
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Agenda
• Welcome – Janis Kearney, MBTA
• Meeting Kick-Off– Ilyas Bhatti, President, The Bhatti Group
• Results of Environmental Investigation– Elissa Brown, LSP, Earth Tech AECOM
• Questions and Answers– Ilyas Bhatti, President, The Bhatti Group
• Closing Remarks– Debra Darby, Site Remediation Specialist, MBTA
Massachusetts BayTransportation Authority
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Meeting Kick-Off
Massachusetts BayTransportation Authority
• Goals for this meeting– To present the result of the environmental
sampling and discuss remedial measures
– To begin to solicit and address concerns
– To inform you how to access information and how to provide comments after the meeting
Readville 5 Yard Facility, PIP Meeting
Readville 5 Yard Facility, PIP Meeting
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Meeting Kick-Off
Massachusetts BayTransportation Authority
• Sign - In
• Recognition of Officials
• Meeting Rules– Reserve questions until end of presentation
• Pads and pens provided
Readville 5 Yard Facility, PIP Meeting
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• Supplemental Phase II – Soil Sampling– Risk Characterization
• Supplemental Phase III– Remedial Alternatives Analysis
• Revised Phase IV– Remedy Implementation Plan
MassDEP Report
Massachusetts BayTransportation Authority
Readville 5 Yard Facility, PIP Meeting
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• Additional Stockpile Sampling– Shallow, mid-depth, deep– Field screening– Laboratory analysis of select samples
• Lead• Arsenic • Leachable lead• Petroleum hydrocarbons/PAHs
– Results confirmed earlier evaluation
Supplemental Phase II –Comprehensive Site Assessment - Soil Stockpiles
Massachusetts BayTransportation Authority
Readville 5 Yard Facility, PIP Meeting
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• Confirmation of Developer’s Soil Data– Focused in worst areas – Field screening – Laboratory analysis of select samples
• Lead• Arsenic• Leachable lead• Petroleum hydrocarbons/PAHs
– Confirmed earlier results• Lead• Most soil impacts are at the soil surface (0 – 3 ft)
Supplemental Phase II –Comprehensive Site Assessment - Sitewide Soil
Massachusetts BayTransportation Authority
Readville 5 Yard Facility, PIP Meeting
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• Groundwater– Previous testing indicated no groundwater
contamination– No further testing was conducted this summer
Supplemental Phase II –Comprehensive Site Assessment - Groundwater
Massachusetts BayTransportation Authority
Readville 5 Yard Facility, PIP Meeting
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Supplemental Phase II –Comprehensive Site Assessment - Results
Massachusetts BayTransportation Authority
• Risk Characterization – Evaluates risk under current conditions
• No significant risk to the environment • No significant risk to safety• No significant human health risk off-site
• Risk to human health for on-site workers• Risk to public welfare
– Conclusion• Soil remediation is required
Readville 5 Yard Facility, PIP Meeting
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Supplemental Phase III –Remedial Alternatives Analysis – Evaluation Process
• Incorporates new Phase II data• Cleanup goal - MBTA rail yard
Massachusetts BayTransportation Authority
Readville 5 Yard Facility, PIP Meeting
Comparison of Risk-Based Cleanup Levels –Commercial / Industrial (parts per million)
Massachusetts BayTransportation Authority
1,7651,687
Developer
2,90036
Original Phase II
(as amended)
1,76536
LeadArsenic
Earth TechAECOM
Compound
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Readville 5 Yard Facility, PIP Meeting
Comparison of Soil Cleanup Levels *(parts per million)
Massachusetts BayTransportation Authority
3,000200
1,76536
1,10021
LeadArsenic
Risk-Based Cleanup Level
BackgroundConcentration
Upper Concentration
Limits
Compound
* Final background concentrations and risk-based cleanup levels may change pending review by MassDEP.
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Readville 5 Yard Facility, PIP Meeting
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Supplemental Phase III –Remedial Alternatives Analysis – Evaluation Process
• What is feasibility analysis?– With the commercial/industrial goal in mind
• Effectiveness• Short and long-term reliability• Implementability• Cost • Risks • Benefits • Timeliness • Non-pecuniary affects
– Evaluate feasibility of reducing levels to below Upper Concentration Limits
Massachusetts BayTransportation Authority
• Four alternatives evaluated1. Remove all soil above risk-based levels/off-site disposal2. Remove all soil above UCLs/off-site disposal3. Remove soil to below UCLs and to meet risk-based
cleanup levels/off-site disposal4. Cap contaminated soil with an engineered barrier
• Regardless of the alternative– Remove hot spots – Remove stockpiles – Stabilize soil remaining– Implement deed restriction
Readville 5 Yard Facility, PIP Meeting
Supplemental Phase III –Remedial Alternatives Analysis – Evaluation Process
Massachusetts BayTransportation Authority
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Readville 5 Yard Facility, PIP Meeting
Comparison of Four Remedial Alternatives
Massachusetts BayTransportation Authority
9,600
11,550
34,100
48,600
Estimated Soil Volume to be
Removed(cubic yards)
$ 53. Remove Soil to Below UCLs and Meet Risk-Based Cleanup Levels
$162. Remove All Soil Above UCLs
$ 84. Cap Contaminated Soil With Engineered Barrier
$231. Remove All Soil Above Risk-Based Levels
Estimated Cost($ Millions)
Alternative
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Readville 5 Yard Facility, PIP Meeting
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Supplemental Phase III –Remedial Alternatives Analysis – Preferred Alternative
• Preferred Alternative– Remove soil to below UCLs and to meet risk-based cleanup
levels/off-site disposal
• Rationale– Reduces risk to meet future industrial/commercial use– Allows for permanent closure under environmental
regulations– Protective of groundwater– Doesn’t require capping– Leaves open the possibility of future additional remediation
Massachusetts BayTransportation Authority
Readville 5 Yard Facility, PIP Meeting
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Revised Phase IV –Remedy Implementation Plan – Conceptual Plan
• Conceptual engineering design plan– Remove / Off-Site Disposal
• The areas of highest contamination levels• Most of the stockpiles• Hotspots
– Stabilize Remaining Soil
– Implement deed restriction that requires that the site continue to be used for commercial/industrial purposes
Massachusetts BayTransportation Authority
Readville 5 Yard Facility, PIP MeetingMassachusetts BayTransportation Authority
Area 2Western
Fence Line
Area 4Exclusion
Zone
Area 3Main Rail Yard
Area 1Orphan
Line
14111401 1408 14531404 1414 14501417 1421 14471424 1427 14441430 1434 1437 144014391438 144114361435 1442143314321431 1443 14561428 144514261425 144614231422 1448142014191418 144914161415 145114131412 145214101409 1454140714061405 145514031402 1429
41 82 93 5 76 11 534744 5014 17 4021 24 3727 30 34333231 35 5628 362625 382322 39201918 411615 421312 4310 45 46 48 49 51 52 54 5529
57
113
897
169
337
505
673
953
225
841
785
729
393
449
617
561
281
1121
1177
1065
1233
1009
1289
1345
112
952
224
392
560
728
616
168
504
896
840
784
448
672
280
336
1120
1176
1288
1232
1064
1344
1008
1400
0 100 20050
Feet
Lead Exceedences (Lab Results)
Lead Exceedences (XRF Sample)
Arsenic Exceedences (Lab Results)
Sample Location
Grid Sample Location
Risk Assessment Areas
November 5, 2008
0 to 3 Feet
UCL Exceedences(Pb: 3000 mg/kg, As: 200 mg/kg)
Phase IV RIP MBTA Readville 5-Yard Site
Figure 16
Lead and Arsenic
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Readville 5 Yard Facility, PIP MeetingMassachusetts BayTransportation Authority
80
80
80
8
090
80
80
80
80
S19-A
S16-D
S16-F
S8-A
S7-BS7-A
S20-C
S20-A
S20-D
S10-C
S10-AS22-A
S5-B
S6-B
S9-A
S17-AS16-A
S16-B S16-C
S9-B
S18-A
S16-E
S20-B
S4-A
S21-A
S10-BS5-A
S5-C
S3-A
S6-A
800797790
846
908
10751073
SS10-0.5 Ft
SS220-0.5 Ft
HB/GP-242-4 Ft
6390-0.5 Ft
6370.5-3 Ft
6940.5-3 Ft
6930.5-3 Ft
6920.5-3 Ft
9060-0.5 Ft
0 100 20050
Feet
Soil Excavation and StockpileRemoval for Off-Site Treatment
& Disposal (Alternative 3)
Soil Stockpile
Stockpile Location
Stockpile Soil Failed TCLP Analysisfor On-Site Stabilization and Off-SiteDisposal
UCL Soil Exceedance for On-SiteStabilization and Off-Site Disposal
RBC Soil Exceedance forOff-Site Disposal
PCB Impacted Soil for Off-Site Disposal
Soil Excavation by Grid Cell
UCL Soil Exceedance from 0-3 Feet bgsfor On-Site Stabilization and Off-Site DisposalUCL Soil Exceedance from 3-6 Feet bgsfor On-Site Stabilization and Off-Site DisposalSoil Failed TCLP Analysis from 0-3 Feet bgsfor On-Site Stabilization and Off-Site Disposal
Sampling Grid
Hot Spot
Hot Spot Removal
Area 4 Exclusion Zone
Phase IV RIPMBTA Readville 5-Yard Site
Figure 19
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Readville 5 Yard Facility, PIP Meeting
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Revised Phase IV –Remedy Implementation Plan - Results
• After remediation– No cap or engineered barrier– Sitewide contamination will be reduced to below UCLs– No significant risk to future site workers or the neighborhood
• Timeframe– Remediation work is expected to be completed within 18
months of awarding the remediation contract
• Cost– $ 5.75 million included in FY 2007-2012 Capital Plan
Massachusetts BayTransportation Authority
Readville 5 Yard Facility, PIP Meeting
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Revised Phase IV –Remedy Implementation Plan – Plan Details
• Detailed engineering plans and specifications– Specifications will include:
• Plan to monitor dust and immediately correct situation
• Plan to ensure that trucks are clean and secure before leaving the site
• Allowable truck routes to minimize disturbance to neighbors
• Plan to ensure that trucks are clean and secure before leaving the site
– Expected in Winter - Spring 2009
Massachusetts BayTransportation Authority
Readville 5 Yard Facility, PIP Meeting
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Schedule for Supplemental Phase II / III and Revised Phase IV Report
• Draft report available: – www.mbta.com/about_the_MBTA/environment– Dedham Public Library, 43 Church Street, Dedham– Hyde Park Branch Library, 35 Harvard Avenue, Hyde Park– DEP Northeast Office, 205B Lowell Street, Wilmington
• Public comment period– 20-day public comment period beginning today– Public comment period ends November 25, 2008
• Debra Darby, MBTA, 10 Park Plaza, Boston, MA 02116• [email protected]
Massachusetts BayTransportation Authority
Readville 5 Yard Facility, PIP Meeting
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Schedule for Remediation
• Other key dates– Final report to MassDEP on December 24, 2008– Public meeting on plan details: Winter - Spring 2009
Massachusetts BayTransportation Authority
Readville 5 Yard Facility, PIP Meeting
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Questions and Answers
Massachusetts BayTransportation Authority
Readville 5 Yard Facility, PIP Meeting
Comparison of Dose from Fugitive Dust vs Total Dose
Massachusetts BayTransportation Authority
0.3 %0.2 %
37.0 %62.5 %
Lead Hot Spot - AdultIngestion of DustInhalation of DustIngestion of SoilDermal Contact with Soil
0.2 %0.1 %
42.8 %56.8 %
Lead Hot Spot - YouthIngestion of DustInhalation of DustIngestion of SoilDermal Contact with Soil
Percent of Total Chronic Average Daily Dosage
Scenario