station, with the exception of stations 4-D and 2-A where only two 
photographs were obtained. 
In January 1986, three replicate photographs were taken 
at stations in a cross-shaped grid centered on the NL-85 disposal 
mound (Figure 2-4) to characterize the baseline conditions of the 
area for comparison with post-disposal data. In July 1986, 
sampling was repeated at the NL-85 mound as well as at cross~-shaped 
grids centered on each of the other four disposal mounds at the New 
London Site (NL-RELIC, NL-I, NL-II, and NL-III, Figure 2-4). The 
July 1986 monitoring program emphasized the NL-85 mound in order 
to document the impacts of the most recent disposal operations. 
Three replicate REMOTS® photographs (one for analysis, and two to 
be archived for possible future analysis) were scheduled to be 
taken at each station within the New London Disposal Site. Due to 
an electronic malfunction of the camera on the last day of 
deployment, photographs were not obtained from 23 stations. 
Nineteen of these missed stations were located in the northern 
portion of the NL-RELIC and NL-II disposal mounds (Figure 2-4). 
This region of the disposal site, located 500 to 1200 meters from 
the current disposal point, was not considered critical to the 
monitoring goals of the 1986 survey. A single REMOTS® photograph 
also was obtained at each of 24 stations in a 6 X 4 reconnaissance 
grid (100 m spacing) located beyond the southwest corner of the 
disposal site (Figure 2-4). This area was located beyond the 
station grid sampled in August 1985 (see Figure 2-3). Previous 
REMOTS® surveys at the New London Disposal Site had suggested the 
potential spread of dredged material toward this region. In 
addition, twenty REMOTS® replicate photographs were also obtained 
at the New London Reference station, located about 2000 meters east 
of the disposal site (41°15.60N, 72°3.64W) for comparison to 
on-site conditions. 
REMOTS® measurements of all physical parameters and some 
biological parameters were measured directly from black and white 
film negatives using a video digitizer and computer image analysis 
system. Negatives are used for analysis instead of positive prints 
in order to avoid changes in image density that can accompany the 
printing of a positive image. The image analysis system can 
discriminate up to 256 different gray scales, so subtle features 
can accurately be measured. Proprietary SAIC software allows the 
measurement and storage of data on 22 different variables for each 
REMOTS® photograph obtained (Figure 2-5). Automatic disk storage 
of all parameters measured allows data of interest to be compiled, 
sorted, compared statistically, or displayed graphically. 
Specific measurement techniques for the REMOTS® 
parameters indicated in Figure 2-5 are presented in the following 
sections: 
