were created from dredged material from Stamford Harbor, CT. In 

 June 1979, the STNH-N mound was capped with sand and the STNH-S 

 mound was capped with silt from New Haven Harbor, CT. Cap Sites 

 1 and 2 (CS-1 and CS-2) , located on the western edge of the CLIS 

 site, also were formed as capping experiments. A baseline REMOTS® 

 survey was made of these areas in April 1983. Immediately 

 following this baseline survey, Black Rock Harbor sediment at CS- 

 1 was capped with silt from the upper portion of New Haven Harbor, 

 and the same sediment at CS-2 was capped with sand from outer New 

 Haven Harbor. A post-disposal reconnaissance REMOTS® survey was 

 conducted in June 1983 to map the distribution of the dredged 

 material and the thickness of the capping materials, and then 

 several additional REMOTS® surveys were subsequently conducted 

 (Table 2-1) . In the present survey, three replicate photographs 

 were obtained at each station, but only one replicate per station 

 was analyzed for this report. 



The most recent survey of July 1986 at the MQR mound 

 occurred 38 months after disposal of Black Rock Harbor dredged 

 materials followed by capping with New Haven Harbor muds. Stations 

 in the grid were occupied at 200, 400, and 600 meters from station 

 Center. Four stations were also located in the quadrants at the 

 200 meter positions. Attempts were made to obtain three replicate 

 sediment -profile photographs at each station, and all pictures were 

 analyzed for this report. 



The 1986 sampling grid was different than that in the 

 August 1985 MQR REMOTS® survey. In 1985, a 6 x 6 orthogonal 

 sampling matrix was occupied with stations located 100, 300, and 

 500 meters north, south, east and west of station Center. One 

 REMOTS® photograph was obtained from each station. The 29 October 

 1985 post-hurricane survey involved sampling 10 stations (3 

 replicates each) located on a cross-shaped grid at station Center, 

 50 and 200 meters on the N-S transect and 50, 200, and 1000 meter 

 positions on the E-W transect. No quadrant stations were sampled. 



The 1986 survey at the Norwalk (NOR) disposal mound 

 involved the same sample grid used in August 1985. Three replicate 

 sediment profile photographs were taken at each station, but only 

 one photograph per station was analyzed for this report. This was 

 the case for all the other CLIS mounds, except for FVP and MQR, 

 where three replicates were analyzed. 



The New Haven 74 (NH-74) disposal mound has the longest 

 monitoring history of all the disposal mounds at CLIS, having been 

 studied on an irregular basis since the original baseline study 

 conducted in 1972. The NH-74 project involved the disposal of New 

 Haven Harbor channel muds which were capped with clean sand, with 

 the first REMOTS® survey conducted in September 1984. The 1986 

 survey was conducted at the same stations sampled in 1985 (Table 

 2-1). 



