INTRODUCTION 



1-01, GENERAL 



This report presents the results of an oil and hazardous 

 material site evaluation of the Tudor Wharf site located in 

 Charlestown, Massachusetts. Since current plans for the 

 proposed development include a three to four level below-grade 

 parking garage and construction of a five-story pile supported 

 building over the open water of Boston Harbor, the focus of 

 this study was an evaluation of the fill and groundwater 

 quality within the filled land portion. The portion of the 

 Tudor Wharf development parcel outside the Tudor Wharf site 

 limits was not included in this evaluation. The limits of the 

 property included in this study are indicated in Figure 2. 



The study summarized herein was completed concurrently with a 

 preliminary geotechnical evaluation of the site which is 

 summarized in our "Report on Preliminary Geotechnical 

 Evaluation, Tudor Wharf, Charlestown, Massachusetts", dated 

 18 May 1988. Refer to this report for further information. 



1-02. PURPOSE AND SCOPE 



The purpose of this study has been to make an initial 

 evaluation of the possible presence and nature of oil and 

 hazardous materials which may be present on or beneath the 

 ground surface at the site. The report supplements the 

 information available from previous studies, and makes 

 recommendations as to the type of remedial action that may be 

 required for future site development. Earth excavation and 

 dewatering will be required for below-grade construction, 

 therefore, information on soil and groundwater quality was an 

 important aspect of the site evaluation. 



This evaluation is based upon the review of: (1) readily- 

 available information on historical site usage and development; 



(2) a review of Massachusetts Department of Environmental 

 Quality Engineering (DEQE) files for Charlestown, Massachusetts; 



(3) visual observations of existing site conditions; and 



(4) information from subsurface explorations and chemical 

 testing designed to obtain data on soil and groundwater quality. 

 This work was undertaken in accordance with the scope of work 

 outlined in our proposal dated 1 March 1988. 



AQA 



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