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at the reference areas. Continuous monitoring over the course of several weeks or months 

 was determined to be much more useful for interpreting possible correlations between 

 bottom- water DO concentrations and benthic habitat quality. By examining the longer- 

 term trends in bottom water DO concentrations, conclusions related to any degradation 

 over time or irregularities in benthic recolonization at NLDS could be based on localized 

 (dredged material related) or regional (seasonal hypoxia) effects. 



The Connecticut Department of Environmental Protection (CTDEP) sponsors a 

 comprehensive DO monitoring program within Long Island Sound. Water quality data are 

 collected from 18 stations on a bi-weekly basis throughout the year. As summer 

 approaches and hypoxic conditions begin to impact Long Island Sound, the program 

 intensifies its sampling efforts by incorporating a total of 48 stations. These data were 

 made available to the DAMOS Program for the 1995 and subsequent surveys to document 

 the trends in bottom-water DO concentrations and evaluate REMOTS® sediment-profile 

 photography results relative to this information. Therefore, DAMOS did not conduct its 

 own DO monitoring at the site after 1992. 



Monitoring Cruise at the New London Disposal Site, 1992 - 1998 



