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MCP Numerical Standards: GW-2 The MCP GW-2 groundwater standards (310 CMR 40.0974(2)) apply to groundwater that is considered both shallow and where there is currently a structure built on the land above the groundwater. These standards are intended to address the potential migration of volatile oil or hazardous material from groundwater into the indoor air.
Documentation for the MCP Method 1 GW-2 Standards
Web page
List of Current MCP GW-2 Standards - 310 CMR 40.0974(2)
Web page
Presentation at the January 10-11, 2001 EPA "Vapor Summit"
MS Powerpoint 93 KB | PDF 78 KB
An Evaluation of Vapor Intrusion Into Buildings Through a Study of Field Data
Web page
Indoor Air Contaminants Comparison Table
MS Word 117 KB | PDF 21 KB
Related Material
Environmental Indicator (EI) Forum, August 15-17, 2000
Indoor Air and Vapor Migration
USEPA Web site
Johnson & Ettinger model
USEPA Web site
Environmental Response Division Operational Memorandum #18 - Part 201 Generic Cleanup Criteria Tables
Michigan DEQ Web site | 
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