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Operating Certification for the Central Artery (I-93)/Tunnel (I-90) Ventilation System
Massachusetts Turnpike Authority (MTA) Technical Support Document, August 2006 PLEASE NOTE: This is a large document and may take considerable time to download.
MS Word 17.0 MB | PDF 7.9 MB
MTA Air Emissions Operating Protocol, August 2006
MS Word 128 KB | PDF 118 KB
MassDEP Completeness Determination, September 2006
MS Word 32 KB | PDF 53 KB MassDEP Proposed Acceptance, September 2006
MS Word 122 KB | PDF 205 KB MassDEP Final Acceptance, December 2006
MS Word 118 KB | PDF 204 KB | 
priorities & results
air quality in my community
