REPORT DOCUMENTATION PAGE 



Form approved 

 OMB No. 0704-0188 



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 any other aspect of this collection of information including suggestions for reducing this burden to Washington Headquarters Services, Directorate for information 

 Observations and Records, 1216 Jefferson Davis Highway, Suite 1204, Arlington VA 22202-4302 and to the Office of Management and Support, Paperwork Reduction 

 Protect (0704-0188). Washington. DC. 20503. 



1. AGENCY USE ONLY (LEAVE BLANK) 



2. REPORT DATE 



January 1996 



P. REPORT TYPE AND DATES COVERED 



Final report 



4. TITLE AND SUBTITLE 



Reconnassiance Survey of the Historical Bridgeport Disposal Site, August 1992 



5. FUNDING NUMBERS 



6. AUTHORS) 



Eliabeth Caporelli, Sandy Browning 



7. PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES) 



Science Applications International Corporation 

 221 Thrid Street 

 Newport, Rl 02840 



B. PERFORMING ORGANIZATION REPORT 

 NUMBER 



SAIC-C109 



9. SPONSORING/MONITORING AGENCY NAME(S) AND ADDRESS(ES) 



US Army Corps of Engineers-New England Division 

 424 Trapelo Road 

 Waltham, MA 02254-9149 



10. SPONSORING/ MONITORING AGENCY 

 REPORT NUMBER 



DAMOS Contribution 

 Number 107 



11. SUPPLEMENTARY NOTES 



Available from DAMOS Program Manager, Regulatory Division 

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



12a. DISTRIBUTION/AVAILABILITY STATEMENT 



Approved for public release; distribution unlimited 



12b. DISTRIBUTION CODE 



13. ABSTRACT 



A reconnaissance survey of the historical Bridgeport Disposal Site was performed on August 4, 1992 to document on-site 

 physical and biological conditions. The site was closed in 1977 after receiving about 4.2 million m 3 of dredged material over a twenty-five 

 year period. Until this survey, the Bridgeport Disposal Site had never been monitored under the Disposal Area Monitoring System 

 (DAMOS) Program. This report presents the results of the one-day field effort involving side-scan sonar and Remote Ecological 

 Monitoring of the Seafloor (REMOTS) surveys. 



The distribution of relic dredged material at the site was mapped using side-scan sonar. Thirteen REMOTS stations then 

 situated in areas where the side-scan sonar records indicated the presence or absence of dredged material disposal mounds, to assess 

 the areal extent and state of reworking of existing dredged material, to examine present benthic biological conditions at the site, and to 

 incorporate these results into future management plans for other disposal sites. 



Results of the side-scan survey indicated that well-defined mounds of dredged material do not exist at the historical Bridgeport 

 Disposal Site; however, relic dredged material is present throughout the site in low relief. Analysis of the REMOTS photographs revealed 

 that the site has experienced some physical and biological disturbances yet, overall, supports a relatively healthy benthic community. 

 This result suggests that the Long Island Sound disposal sites currently in use have encouraging future biologically. Because of the large 

 areal extent of historical dredged material present at the site, however, any future assessment of the biological and chemical state of the 

 historical dredged material should include additional REMOTS photography and sediment sampling for chemical analyses. 



14. SUBJECT TERMS 



side scan sonar REMOTS DAMOS Bridgeport Disposal Site 



15. NUMBER OF PAGES 



2A. 



16. PRICE CODE 



17. SECURITY CLASSIFICATION OF REPORT 18. SECURITY CLASSIFICATION OF THIS 19. SECURITY CLASSIFICATION OF 



Unclassified page abstract 



20. LIMITATION OF ABSTRACT 



