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MPCA Green and Sustainable Remediation Initiative June 3, 2014 Sustainable Remediation Roundtable Washington, D.C. Rebecca A. Bourdon, PG Hydrogeologist
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Contaminant risk mitigation decision making cognizant of environmental effects, community goals and economic impacts. PRPs GSR Definition
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01.02 Toolkit for Greener Practices 07.09 ARRA LUST Green BMPs 07.10 LUST Fund- Financed Contract Language 07.12 LUST GSR Guidance 5.13 PRP GSR Evaluation Project 3 MPCA's GSR Evolution
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ITRC GSR Products Overview Document Green and Sustainable Remediation: State of the Science and Practice (GSR-1, 2011) Technical & Regulatory Guidance Document: Green and Sustainable Remediation: A Practical Framework (GSR-2, 2011)
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ASTM Greener Cleanups Guide 5 Published November 2013
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8 15 PM S 12 H YDROS 3 QUESTION SURVEY 2 WEEKS 3 MEETINGS 1 HR EACH
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Tools Selection Increasing Tool Complexity and Data Needs
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10 Data, Assumptions, Calculations Environmental Impact
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11 Option 1 Purchase & Demo Building Option 2 LIF, Excavate Source Area & Monitoring (2 yrs) Option 3 LIF, Dual-Phase Extraction & Monitoring (1 yr post-CA) Environmental Impact Total GHGs In Metric Tons 11.6614.9117.62 Economic Impact $140,000* Land & Bldg *Assessed Value (2012) $86,300 Market Value (2012) $69,400 $95,000 Social Impact Degree of Difficulty to Implement Degree of Disturbance Difficult High Moderately Difficult Low to High Moderately Difficult Low to Moderate Green and Sustainable Remediation Quantitative Evaluation
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12 M EASUREMENT Impact
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13 Option 1 Sub-Slab Depressurization And Sanitary Sewer Lining Option 2 Basement Filling And Sanitary Sewer Lining Option 3 Source Area Excavation And Sanitary Sewer Lining Environmental Impact Total GHGs (metric tons) 1.816 37,007 Economic Impact Costs to-date: $98,180.22 $71,100$169,320$345,090 Social Impact Degree of Difficulty to Implement Degree of Disturbance Degree of Stakeholder Preference Low Low Moderate Moderate Moderate to High High High High Low Important Message: The Project Team notes closure is anticipated post corrective action, but is not guaranteed until confirmation indoor air monitoring and other considerations are satisfied. Green and Sustainable Remediation Quantitative Evaluation
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14 Sustainable Remediation - Environmental Footprint Summary (SiteWise) PhaseActivities GHG EmissionsTotal Energy Used Accident Risk Fatality Accident Risk Injury metric tonMMBTU Component 1 Consumables0.122.5E+00NA Transportation-Personnel0.698.7E+001.9E-051.5E-03 Transportation-Equipment0.131.8E+007.3E-075.9E-05 Equipment Use and Misc0.841.2E+010.0E+00 Residual Handling0.000.0E+00 Sub-Total1.782.45E+011.97E-051.59E-03 Component 2 Consumables14.401.0E+02NA Transportation-Personnel0.799.9E+001.3E-051.0E-03 Transportation-Equipment0.385.0E+009.1E-077.3E-05 Equipment Use and Misc0.000.0E+00 Residual Handling0.000.0E+00 Sub-Total15.561.14E+021.40E-051.12E-03 Component 3 Consumables92.891.3E+03NA Transportation-Personnel0.668.3E+001.8E-051.5E-03 Transportation-Equipment0.091.2E+002.2E-071.8E-05 Equipment Use and Misc0.385.7E+002.1E-065.4E-04 Residual Handling36,912.876.2E+021.3E-051.0E-03 Sub-Total37,006.881.93E+033.34E-053.06E-03
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16 Toward Sustainability Using Better-Informed Decision-Making And Demonstrable Impacts
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