5? 293 



REPORT DOCUMENTATION PAGE 



form Aoorovvo 

 0M» NO. 0704-01 M 



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1. AGENCY USE ONLY ((.#*»• 0«n«; 



2. REPORT OATE 



November 1994 



3. report type ano oates covered 

 Final report 



a. title ano subtitle 



Chemical Analyses of Sediment Sampling at the 

 Massachusetts Bay Disposal Site, 5-7 June 1989 



6. AUTHOWS) 



Peggy M Murray 



7. PERFORMING ORGANIZATION NAMHS) ANO loORESSUS) 



Science Applications International Corporation 

 221 Third Street 

 Newport, RI 02840 



9. SPONSORING; MONITORING AGENCY NAME(S) ANO AOORESS(ES) 



US Army Corps of Engineers - New England Division 

 424 Trapelo Road 

 Waltham, MA 02254-9149 



5. FUNOING NUMBERS 



8. PERFORMING ORGANIZATION 

 REPORT NUMBER 



C98 



10. SPONSORING' MONITORING 

 AGENCY REPORT NUMBER 



DAMOS Contribution No. 91 



11. SUPPLEMENTARY NOTES 



Available from DAMOS Program Manager, Regulatory Division 

 USACE-NED, 424 Trapelo Road, Waltham, MA 02254-9149 



12*. DISTRIBUTION 'AVAILABILITY STATEMENT 



Approved for public release; distribution unlimited. 



12b. DISTRIBUTION COOE 



1] ABSTRACT (MtMimutrn 00 woraw 



Sediment chemistry studies at the Massachusetts Bay Disposal Site (MBDS) have concentrated on the interim 

 disposal area, established in 1977. Prior to the establishment of the interim site, materials may have been released at 

 the site that were more contaminated than those currently being disposed. A survey conducted during June, 1989 

 sampled areas within the MBDS suspected to contain contaminated sediments, and identified potential areas to be 

 capped by future disposal of sediments that are suitable for open ocean disposal. 



Sediment samples were taken at 20 stations within, or adjacent to, the western half of the MBDS. This area 

 overlaps the historical Industrial Waste Site. Samples were analyzed for both trace metal and organic contaminants. 

 Results of samples from the June 1 989 survey showed that contaminant concentrations were primarily influenced by 

 historical dredged material and waste disposal. The spatial distribution of chemical data, especially polynuclear 

 aromatic hydrocarbons (PAHs), indicated that contaminant concentrations were highest along the western edge of 

 MBDS, in the center of the historical waste site. This area should be further investigated by site managers for receipt of 

 capping material. Concentrations of all trace metals were relatively low compared to MBDS reference areas and regional 

 Massachusetts Bay data. PCBs were undetected at stations previously reported to have concentrations of up to 1 ppm. 

 The decrease in concentration of PCBs at the MBDS is possibly due to further disposal of sediments with low 

 concentrations of PCBs; in this case below the detection limit of 20 ppb. Low levels (<1 1 ppb) of pesticides (4,4'- 

 DDE) were detected at over half of the MBDS stations. Measured concentrations were within regional ranges reported for 

 Massachusetts Bay. 



14. SUBJECT TERMS 



MBDS 



dredged material 



contaminated sediments 

 sediment chemistry 



17. SECURITY CLASSIFICATION 

 OP REPORT 



Unclassified 



SECURITY CLASSIFICATION 

 OP THIS PAGE 



19. SECURITY CLASSIFICATION 

 OP ABSTRACT 



15. NUMBER OF PAGES 



43 



1*. PRICE COOE 



20. LIMITATION OF ABSTRACT 



NSN /54O-O1-28Q-550O 



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