1. EnviroSense, Inc. An Overview of Environmental Factors in Developing Brownfields Sites in Massachusetts Presented By: Eric S. Wood, P.Hg., PG, LSP President Presented To: Harvard Graduate School of Design

2. EnviroSense, Inc. Objectives Quick overview of regulatory framework Quick overview of regulatory framework Overview of site investigation and cleanup process Overview of site investigation and cleanup process Available resources for Brownfields work Available resources for Brownfields work Where to go from here Where to go from here Questions anytime (Discuss your sites?) Questions anytime (Discuss your sites?)

3. EnviroSense, Inc. Overview of Environmental Projects in Massachusetts Department of Environmental Protection Department of Environmental Protection Massachusetts Contingency Plan (MCP) Massachusetts Contingency Plan (MCP) Licensed Site Professional (LSP) Licensed Site Professional (LSP)  Ensures Compliance with MCP  See Handout

4. EnviroSense, Inc. Overview of Typical Environmental Project Elements Many Ways to “Enter and Exit the System” Many Ways to “Enter and Exit the System” Site Investigation Site Investigation Risk Characterization Risk Characterization Remediation Remediation Operation, Maintenance, and Monitoring Operation, Maintenance, and Monitoring

5. EnviroSense, Inc. Potentially Contaminated Media Soil Soil Ground Water Ground Water Surface Water Surface Water Sediment Sediment Indoor Air Indoor Air Outdoor Air Outdoor Air

6. EnviroSense, Inc. Types of Contaminants Volatile Organic Compounds (VOCs) (Examples: solvents, gasoline) Volatile Organic Compounds (VOCs) (Examples: solvents, gasoline) Semi-Volatile Organic Compounds (SVOCs) (Examples: Dyes, Urban Fill) Semi-Volatile Organic Compounds (SVOCs) (Examples: Dyes, Urban Fill) Petroleum Products (sometimes called “TPH”) Petroleum Products (sometimes called “TPH”) Pesticides/Herbicides Pesticides/Herbicides PCBs PCBs Metals Metals Radioactive Materials (not under MCP) Radioactive Materials (not under MCP)

7. EnviroSense, Inc. Site Investigation Techniques Site History Reviews and Interviews Site History Reviews and Interviews Screening (Immunoassays, PIDs, soil gas surveys, XRF) Screening (Immunoassays, PIDs, soil gas surveys, XRF) Sampling and Analysis Sampling and Analysis Installing Monitoring Wells Installing Monitoring Wells

8. EnviroSense, Inc. Site Investigation Techniques (cont’d) Geophysical Techniques Geophysical Techniques Remote Sensing Techniques Remote Sensing Techniques Laboratory Analyses Laboratory Analyses

9. EnviroSense, Inc.

14. Phase I (in Massachusetts) Site Information Site Information  Address/Latitude/Longitude  Topographic map  Number of workers on site  Residential population within ½ mile  Surrounding land uses  Institutions within 500 feet of site  Natural resources within 500 feet of site

15. EnviroSense, Inc. Phase I (in Massachusetts) (cont’d) Site Map Site Map Site History Site History  Release(s)  Operations  Oil/Hazardous material usage  Waste management  Environmental permits/compliance

16. EnviroSense, Inc. Phase I (in Massachusetts) (cont’d) Site Hydrogeological Characteristics Site Hydrogeological Characteristics  Soil Type (porosity, permeability)  Ground water flow conditions Nature and Extent of Contamination Nature and Extent of Contamination Migration Pathways and Exposure Potential Migration Pathways and Exposure Potential Evaluation for Immediate Response Actions Evaluation for Immediate Response Actions

17. EnviroSense, Inc. Phase II (in Massachusetts) All of Phase I data in more detail All of Phase I data in more detail Fate and Transport of Oil/Hazardous Material Fate and Transport of Oil/Hazardous Material Risk Characterization Risk Characterization

18. EnviroSense, Inc. Phase III (in Massachusetts) Detailed Feasibility Analysis Detailed Feasibility Analysis Determines Optimum Remedial Action to Implement Determines Optimum Remedial Action to Implement

19. EnviroSense, Inc. Phases IV & V (in Massachusetts) Implementation of Remedial Action (Phase IV) Implementation of Remedial Action (Phase IV) Operation, Maintenance, and Monitoring (Phase V) Operation, Maintenance, and Monitoring (Phase V)

20. EnviroSense, Inc. Brownfields Development in Massachusetts Multiple Agencies Participating Multiple Agencies Participating Monies Available Monies Available Competitive Competitive Covenant Not to Sue Covenant Not to Sue Insurance Products Insurance Products

21. EnviroSense, Inc.

25. How Clean is Clean? No Significant Risk No Significant Risk No Substantial Hazard No Substantial Hazard Permanent and Temporary Solutions Permanent and Temporary Solutions Deed Restrictions (Institutional Controls) Possible in Some Situations Deed Restrictions (Institutional Controls) Possible in Some Situations

26. EnviroSense, Inc. What Should You Be Aware Of? Potential Indicators of Environmental Impact (See Handout) Potential Indicators of Environmental Impact (See Handout) Understand the Site History Completely (see Phase I notes) Understand the Site History Completely (see Phase I notes) Consider Potential Nearby Properties to Impact Your Site Consider Potential Nearby Properties to Impact Your Site Indoor and Outdoor Environments are Important Indoor and Outdoor Environments are Important

27. EnviroSense, Inc. What Should You Be Aware Of? (cont’d) Consider Insuring the Risk & Indemnification Agreements Between Buyer and Seller Consider Insuring the Risk & Indemnification Agreements Between Buyer and Seller Contamination  Risk all the time Contamination  Risk all the time Environmental Costs can be Negotiated into P&S Environmental Costs can be Negotiated into P&S Quantify the Uncertainties Quantify the Uncertainties Evaluate On-Site and Off-Site Liability Potential Evaluate On-Site and Off-Site Liability Potential Property Boundaries  “Site” Boundaries Always Property Boundaries  “Site” Boundaries Always

28. EnviroSense, Inc. What Should You Be Aware Of? (cont’d) Hire Competent Professionals (LSP if necessary) Hire Competent Professionals (LSP if necessary) Minimize “Environmental Surprises” Minimize “Environmental Surprises” Do Your Homework Do Your Homework Work with Environmental Professionals Early to Assure Design is Consistent with Remediation Strategy Work with Environmental Professionals Early to Assure Design is Consistent with Remediation Strategy

29. EnviroSense, Inc. Summary Sites Enter System via DEP’s MCP. Sites Enter System via DEP’s MCP. LSP oversees work LSP oversees work Goal: No Significant Risk (NSR) Goal: No Significant Risk (NSR) NSR  All Contamination is Gone NSR  All Contamination is Gone Research Funding Mechanisms Research Funding Mechanisms Know Your Site Well – No Surprises Know Your Site Well – No Surprises

30. EnviroSense, Inc. EnviroSense, Inc. 1F Commons Drive Suite 34 Londonderry, NH 03053 t: 603-437-8227 f: 603-437-0500 www.EnviroSense.com