IRAN YT » NOS VPN IO Cont, FN An Investigation of the Dispersion of Sediments Resuspended by Dredging Operations in New Haven Harbor —_——, ee a Disposal Area Monitoring pen. DAMOS DA|M O §$ Contribution 112 November 1996 US Army Corps of Engineers New England Division REPORT DOCUMENTATION PAGE OMB No. 0704-0188 Public reporting concern for the collection of information Is estimated to average 1 hour per response Including the time for reviewing Instructions, searching existing data sources, gathering and measuring the data needed and correcting and reviewing the collection of information. Send comments regarding this burden estimate or 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, Sulte 1204, Arlington VA 22202-4302 and to the Office of Management and Support, Paperwork Reduction 7. AGENCY USE ONLY (LEAVE BLANK) REPORT DATE B. REPORT TYPE AND DATES COVERED November 1996 Final report . TITLE AND SUBTITLE 6. FUNDING NUMBERS An Investigation of the Dispersion of Sediments Resuspended by Dredging Operations In New Haven Harbor 6. AUTHOR(S) W. Frank Bohlen, M.M. Howard-Strobel, David R. Cohen, Eric T. Morton - PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES) Science Applications Intemational Corporation 221 Thr Street Newport, RI 02840 9. SPONSORING/MONITORING AGENCY NAME(S) AND ADDRESS(ES) US Amny Corps of Engineers-New England Division 424 Trapelo Road Waltham, MA 02254-9149 11. SUPPLEMENTARY NOTES Available from DAMOS Program Manager, Regulatory Division USACE-NED, 424 Trapelo Road, Waltham, MA 02254-9149 2a. DISTRIBUTIOWAVAILABILITY STATEMENT Approved for public release; distribution unlimited 8. PERFORMING ORGANIZATION REPORT NUMBER 0. SPONSORING/ MONITORING AGENCY REPORT NUMBER DAMOS Contribution Number 112 Maintenance dredging involving the removal of 840,000m:3 from the New Haven Harbor main navigational channel took place between October 1993 and January 1994. Concem about the transport and fate of the resuspended sediments resulting from the dredging operations was expressed by the State of Connecticut's Department of Environmental Protection (DEP). The problem centered on the shallow water areas flanking the navigation channel which had been identified as winter flounder s ing grounds. An agreement was reached wherein field surveys, using an acoustic echo sounder, would be conducted while the dredge was operating. Additionally, a bottom-mounted instrument array, recording suspended sediment concentrations and other hydrographic parameters, would be deployed near the site of the flounder spawning grounds. This monitoring of the dredged sediment plume would provide a case history for future reference. The two major objectives of the study were 1) establish what the background suspended sediment concentration is before and after dredging, and 2) document the movement of the dredge plume relative to fishery resource areas such as winter flounder spawning grounds. The result of the acoustic surveys revealed that the dredge-induced sediment plume did protrude into the shoals area to the east and west of the main navigation channel. These excursions onto the shoals occurred only when the dredge was in the immediate vicinity. The DAISY, which was deployed on the eastern edge of the winter flounder spawning area, also showed elevated suspended material concentrations attributable to the dredge operating in the upper reaches of the harbor. The time series of the DAISY data showed numerous aperiodic short duration spikes of approximately 100 mg-1-1. The observed concentrations were an order of magnitude larger than the preceding background concentrations. However, in the last half of the deployment, while the dredge was located well south of the DAISY site, there were several long duration (1-3 days), very high concentration perturbations. During these events concentrations reached 700 mg -1-1 which could not be related to dredging operations. Evidence from the meteorological data and sewage effluent records indicate that these events are likely a result of winds and wind-generated waves, alone or in combination with, discharges from wastewater treatment plant outfalls. Based on these findings, credge induced sediment resuspension is a minor perturbation relative to the much longer duration, larger amplitude events hi associated with wind, wind-waves , and effluent discharges from outfalls . The effects of dredging related spikes in suspended sediment on the winter flounder spawning grounds, and the regional water quality in general appear limited in duration and of relatively low amplitude. AMOS CT De DAMOS_ CT Department of Enviromental Protection (DEP), acoustic surveys, The DAISY, dredging SnSSHGHE plumes, sediment resuspension 17. SECURITY CLASSIFICATION OF REPORT 18. SECURITY CLASSIFICATION OF THIS 9. SECURITY CLASSIFICATION OF 20. LIMITATION OF ABSTRACT 5 PAGE ABSTRACT Unclassified i ‘ 1 e P w i - y uae wton ‘ s ‘a \¢ \ a 2 tk 4 * de ee Sey ; Bent i +e) m6 7 F ' tt . - ¢ ao ae y ' ‘ Sy are ¢ af £ ~ i a i , fae? x bE v ‘ , 4 : AN INVESTIGATION OF THE DISPERSION OF THE SEDIMENTS RESUSPENDED BY DREDGING OPERATIONS IN NEW HAVEN HARBOR CONTRIBUTION #112 November 1996 Submitted to: Regulatory Branch New England Division U.S. Army Corps of Engineers 424 Trapelo Road Waltham, MA 02254-9149 Prepared by: W. Frank Bohlen M.M. Horward-Strobel David R. Cohen Eric T. Morton Science Applications International Corporation Admiral's Gate 221 Third Street Newport, RI 02840 Hea (401) 847-4210 US Army Corps of Engineers New England Division eh SS am A me ds ee en ee septate nents i ~~ HRY TRACI ian AK ‘ a ay eee Sal WOR eye ae yo ae HITT AOL OE FE CEERI Sesh) hi ROMEO AE ERE WAR erga ee eae ee Shr cr Ps J a a on Fi . | af hy j > py, f ux ¥ tase ; ¥ | hed tal ee 3 rs _ i ; ; 1) bell oe £ a | iE] § bs ; | y x ees » : i if N L. 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Jt Se) ay Misaes iy nec ‘ me OS Mil marae ep ES) a CA PAL D a | wie! " eo) ee ie aly Die ath ae } ‘i sth ie ‘ Tare ‘ a) . j 5 r rite ? Pt ‘ i ’ ie wi ie Det By #y ¥ a i f . i he ay. © ef P ia : a {* ‘ hee « , ne ? v , (pie i c Pye ; ¥ +t 4 F ut $ Bri ; 1.0 INTRODUCTION During the period October 2, 1993 through January 31, 1994, the U.S. Army Corps of Engineers, New England Division (NED), conducted maintenance dredging of the navigational channel in New Haven Harbor, Connecticut (Figure 1-1). This operation removed approximately 840,000 cubic yards of sediments which were then disposed at the Central Long Island Sound Disposal Site (CLIS). Prior to the initiation of this project, the State of Connecticut Department of Environmental Protection (DEP) expressed concerns regarding the potential dispersion of sediments resuspended by dredging and the deposition of these materials in areas defined as being "environmentally sensitive" because of their frequent use by flounder as a spawning area. These spawning grounds are located to the west of the federal navigational channel and to the north of the inner breakwater adjoining Sandy Point (Figure 1-1). Additional flounder spawning areas may be found at the southeastern limit of the harbor, within Morris Cove. In response to DEP concerns, the NED initiated a field investigation designed to monitor dredge-induced resuspension and to detail the area affected by the dispersion of these materials. This report provides a summary and discussion of the observations obtained as part of this investigation. The major objectives for the field investigation of dredge-induced resuspension and the associated dispersion were defined as follows: @ To determine the normal background levels of suspended materials in New Haven Harbor immediately prior to and during the dredging of the federal navigational channel in the fall of 1993. @ To monitor the plume of materials suspended by dredging operations during flood and ebb tidal conditions to determine a) the spatial extent of the plume and b) its trajectory relative to the areas identified by the State of Connecticut Department of Environmental Protection as winter flounder spawning areas. The study area lies within New Haven Harbor, Connecticut’s largest port facility. Most of the tonnage entering the harbor is in the form of petroleum products, transported via tankers which use the 10.5 meter dredged navigation channel. Three tributaries feed into New Haven Harbor, the West River, the Mill River, and the Quinnipiac River. Both the West and Mill Rivers are small; the West River is only 3 km long and the Mill River’s source, Whitney Lake, is less than 10 km from the harbor. The input from these two rivers can be considered negligible. Freshwater contributions from the Quinnipiac are also minor relative to the total flux of water in and out of the harbor (Richards 1988). The annual mean flow from the Quinnipiac gaging station in Wallingford, CT, for the period of record 1931 to Dredged Sediment Dispersion in New Haven Harbor 1994, is 6 m*:s?. For comparison, the annual mean flow from the Connecticut River, the largest freshwater source to Long Island Sound, is 500 m?-s! (from 1928 to 1994). Natural depths within the harbor rarely exceed 4 meters. The navigation channel is flanked by broad shallows, most notably Shag Bank on the western side with a mean depth of 0.5 meters. Morris Cove, a large shallow embayment at the southeastern limit of the harbor, has a mean depth of approximately 3 meters, except for an abandoned borrow pit located near the middle of the cove, with a maximum depth of 11 meters. 2.0 METHODS AND PROCEDURES 2.1 Field Surveys and Water Sampling A Raytheon Model DE719C® 200 kHz echo sounder was used for detecting the lateral and longitudinal extent of the suspended sediment plume. Transects were run cross-channel in an east-west orientation, with usually one transect up current of the dredge as a control, followed by several transects down current. A 1.7 liter Niskin bottle was used to collect water samples. On recovery, all water samples were stored in prerinsed plastic jars and returned to the laboratory for analysis. Concentrations of suspended sediment were determined by vacuum filtration through dried and preweighed Nucleopore® membrane filters (47 mm diameter, 0.40 micron pore size) mounted in standard Millipore® filtering apparatus. Navigation data were acquired using a Magnavox MX200® GPS Navigator with an MX-50R® Differential GPS Beacon Receiver attached to a notebook computer for continuous recording of ship position along each of the transect lines. A Seabird Electronics SBE-19 Seacat conductivity, temperature, and depth (CTD) probe was employed for obtaining hydrographic data, whenever possible during a survey, to assess the vertical structure of the water column. 2.2 DAISY Deployments Concurrent with the above field operations, a single bottom-mounted instrument array, DAISY (Disposal Area In situ SYstem), was deployed to provide time series observations of hydrographic conditions and suspended material concentrations at a single point. The array was located immediately adjacent to the western edge of the navigational channel, along the eastern boundary of the winter flounder spawning area (Figure 1-1). Instruments mounted on the array included a single two-axis electromagnetic current meter, temperature and conductivity probes, two optical sensors to detail suspended material concentrations, and a datalogger for storing the data. The optical sensors were calibrated in the laboratory prior to deployment using sediments obtained from New Haven Harbor. All instruments were positioned to sample conditions at a point approximately 1 meter above the sediment-water interface. The logger was programmed to burst sample at a rate >f 0.5 Hz for a period of one minute, average the burst, and store data, four times each hour. Data were recorded in digital binary format, stored in RAM, and downloaded during servicing to Dredged Sediment Dispersion in New Haven Harbor a shipboard portable computer for subsequent analysis. A 20 foot Privateer, owned and operated by the University of Connecticut, was the boat used for all field surveys and array servicing. 3.0 RESULTS 3.1. Field Surveys Of eleven field surveys attempted, nine were successful. One survey was abandoned due to inclement weather, and a second survey terminated due to mechanical difficulties on the dredge. The nine completed surveys, encompassing 65 transects, were conducted while Great Lakes Dredge #54 was operating in the interior reaches of New Haven Harbor. Reach limits, defined by Great Lakes Dredge and Dock, Co., are shown in Figure 3-1. Daily volumes of dredged sediment from the various reaches are plotted in a histogram (Figure 3- 2). The barge used an open clamshell bucket with a capacity of 19.9 m®. The surveys spanned the period from October 25 through November 18, 1993. Local weather and tidal conditions observed for each survey are summarized in Table 3-1, as well as the latitude and longitude of the barge location, and sampling activities. Dredge locations for all of the surveys are shown in Figure 3-3. The locations were determined by encircling the barge while running the GPS; if GPS was unavailable a symbol is used to denote the barge. A time series of the meteorological conditions, recorded at Norwalk Harbor by Northeast Utilities, during the dredging period is shown in Figure 3-4 and a summary in Figure 3-5. All of the echo sounder traces recorded are presented in Appendix A; plotted casts from the CTD are located in Appendix B. The first survey took place on October 25; the dredge was located near the United Illuminating Company electric generating facility on the eastern side of the harbor (Figure 3- 6). Echo sounder transects were run during the end of the ebb; tidal currents were slacking. The horizontal distribution of the dredge-induced sediment plume for this survey, and all subsequent surveys, is displayed as a heavy line on a transect (e.g., Figure 3-6, A) whenever material was present in the vertical. The resulting traces indicate that a plume is advected downstream within the confines of the channel for a distance of at least 250 meters (Figure 3-7). Throughout this survey the dredge was located near the United Illuminating outfall; thus, it is difficult to determine whether or not all of the echo sounder record is directly attributable to dredging operations (e.g., Figure 3-8). There is no indication of the plume, regardless of its source, migrating cross-channel to the bounding shallows along the western edge. Water samples collected near the United Illuminating outfall do show a significant decrease in the ambient salinity (Table 3-2). Specifically, samples #21 and #26 are 19.9 and 21.6 practical salinity units (psu), as compared to an average of approximately 26.5 psu for all surface water samples collected. Dredged Sediment Dispersion in New Haven Harbor Two surveys were completed on November 2. A survey was run during maximum flood while the dredge was stationed south of the Gateway Marine Terminal (Figure 3-9) and another survey was conducted during the early ebb, after the barge moved north of the terminal (Figure 3-10). The flood survey indicated that the plume extended northward for approximately 400 meters. The United Illuminating outfall, located approximately 600 meters north of the barge, obscured the plume signal, and plume tracking in this region was terminated. A small patch of the plume was observed to the west of the main channel, in 6 meters of water, 400 meters north of the barge (Figure 3-11). The survey run during the beginning of the ebb shows that considerably smaller patches of the plume were advected along the channel for a distance of approximately 250 meters south of the barge (Figure 3- 12). A small patch was observed 150 meters north of the barge, possibly a relict from the previous flood. Dredge operations stopped and started throughout the survey, which may explain the smaller, more variable nature of the patches. The CTD data, collected during the early ebb, shows only slight density stratification (2-3 psu) within the top 2 meters, due mainly to the proximity to upstream sources of fresher water, i.e., the Mill and Quinnipiac Rivers. Surface to bottom temperature differences were less than a degree. The next day, November 3, the dredge was located in the vicinity of navigational buoy "17" (Figure 3-13). The survey was completed during the first two hours of the ebb; dredging was intermittent throughout the day. The plume trace was lost within 125 meters downstream (Figure 3-14). Results of this survey were difficult to interpret due to interference from wave turbulence; however, surface patches of black plume water were visually spotted (no evidence of plume traces on the echo sounder) within the navigation channel as far as 250 meters downstream. CTD data indicate a nearly vertically homogenous water column with temperature differences from surface to bottom of less than a degree and salinity differences of less than 2 psu. The dredge was located near buoy "16" (Figure 3-15) during two ebb surveys conducted on November 11. Results of the first ebb survey, run during maximum ebb currents, indicated that the plume traveled approximately 525 meters downstream along the east bank of the channel (Figure 3-16) with excursions of 200 meters eastward onto the adjacent shoals. The second survey (Figure 3-17), during the latter half of the ebb, shows the plume again hugging the east bank for a distance of only 200 meters (Figures 3-18). Currents were slack by the end of the last transect. The majority of the plume observed during this second survey resides in deeper water with only minimal excursions (within 50 meters) over the adjoining shallows. Plume distributions in this area display some of the characteristics of a density current, i.e., a gravitationally induced density contrast between the sediment-laden plume and ambient waters (Figure 3-19). CTD casts, taken between the two surveys, indicate a well mixed water column with negligible stratification. Dredged Sediment Dispersion in New Haven Harbor Only one survey near the end of the flood tide was attempted on November 15 due to deteriorating weather conditions (Figure 3-20). The barge was located to the west of Morris Cove on the eastern edge of the navigation channel. Patches of the plume were observed in the echo sounder record as far as 900 meters northeast of the barge, outside of the channel in Morris Cove (Figures 3-21). The plume protruded onto the shoals a maximum distance of 700 meters from the east edge of the channel. The CTD profiles show minimal vertical density stratification, indicating a homogenous water column. By the next day, November 16, the dredge had moved north about 300 meters, still along the eastern edge of the navigation channel (Figure 3-22). One survey was completed just before maximum ebb. Remnants of the plume were observed in Morris Cove, east of the channel, approximately 700 meters downstream of the barge (Figure 3-23). Plume traces were poorly defined and difficult to interpret during this survey. The CTD data, collected along the axis of the channel, show weak vertical and horizontal density gradients. The final survey took place on November 18; the dredge was initially positioned near buoy "15" and proceeded slowly northward throughout the survey to a final position approximately 60 meters from its origin (Figure 3-24). One survey during maximum flood currents was conducted. The echo sounder record shows a patch of the plume in the channel nearly 600 meters upstream of the dredge barge (Figures 3-25). Small patches were detected outside of the channel, to the east and west, but generally only for short distances — within 100 meters. Plume definition throughout this survey was generally good. Again, the CTD profiles were obtained along the axis of the channel and indicate weak vertical, as well as horizontal, density gradients. 3.2 | Water Sampling During most of the plume surveys, water samples were collected to ascertain the relative amounts of suspended sediment with distance from the dredging operations. The results of this sampling are summarized in Table 3-2 and the location of each water sample relative to the barge is shown in the Figures 3-6, B; 3-9, B; 3-10, B; 3-13, B; 3-15, B; 3-17, B; 3-20, B; and 3-22, B. The highest concentration measured (662 mg-I') was located within 100 meters of the barge and associated with the near bottom waters. Indeed, most of the higher concentration data were within a 100 meter range of the barge, regardless of the tide stage. Beyond that distance, most of the data indicates that the concentrations within the dredge-induced plume were relatively low, decreasing rapidly under the combined effects of settling, advection, and turbulent diffusion and mixing. 3.3. DAISY Deployments The bottom-mounted instrument array (DAISY) collected data from October 25 to December 7, 1993. The instruments on the array sampled conditions approximately one Dredged Sediment Dispersion in New Haven Harbor meter above the bottom in water 4 meters deep. The DAISY was serviced once during the deployment period on November 11, 1993, at which point data were downloaded and sensors were examined for biofouling and cleaned by divers. The array was inadvertently moved from its original position of 41°17.008’ N, 72°54.973’ W and redeployed at 41°17.018’ N, 72°54.966' W. This movement, of just 20 meters within water of the same depth, is considered insignificant for the purposes of this study, and the data are treated as if they were measured at one location. The resulting time series from the DAISY sensors for the entire deployment period is presented in Figure 3-26; A-E. A statistical summary of the hydrographic parameters (current velocity, temperature, and salinity) is presented in Table 3-3. The area is characterized by relatively low energy with current speeds rarely exceeding 20 cm-s! (Figure 3-27; A); the overall mean velocity is 6.3 cm:s’. There is a bidirectional tidal signal (Figure 3-27; B) although with a fair amount of spread about the principal axis, a result of the low current velocities. Using the methods of Mardia (1972), the mean direction on the ebb is 184° True and-on the flood, 356° True. The average velocities are the same for both flood and ebb, although the ebb displays more variability and a higher maximum (Table 3-3). Energy spectra (Figure 3-28) show the north-south (along channel) component stronger in magnitude than the east-west (lateral) component and that most of the energy occurs at the semi-diurnal period of 12.42 hours (2 cycles per day). The data was of sufficient length, covering several spring-neap cycles, for determination of residual transport. Using a low pass filter with a 48-hour cutoff frequency, (Figure 3-29) the residual drift, at the DAISY site, is to the southwest with a velocity of 0.5 cm-s’. The time series of suspended material provided by the DAISY optical sensors indicate that background concentrations along the western margins of upper New Haven Harbor average approximately 8 mg-I'. During a tidal cycle concentrations range 15 mg-I', peaking at about 25 mg:I!. These values are consistent with the water samples obtained at sites throughout the study area prior to dredge operations, which suggests the suspended material field in New Haven Harbor is relatively homogeneous. The DAISY data show several aperiodic events resulting in concentrations approaching 100 mg-I" early in the deployment period and more than 700 mg-1" during the latter half of the deployment. The elevated concentrations observed on October 25 and then again on November 11 are the result of disturbances from positioning the DAISY array during deployment. The remaining perturbations may be the result of a variety of factors including the dredging operations, stream flow variations (indicative of rainfall events), winds and wind waves, and discharge from municipal sewage treatment facilities and CSOs. We explore the relative contribution of each of these parameters in the following paragraphs. Throughout the first half of the DAISY deployment period, a series of short-term, or spiky, high concentration events occurred (Figure 3-30; A) sufficient to increase suspended Dredged Sediment Dispersion in New Haven Harbor material concentrations from near average values to more than 100 mg:I’. There appears to be no relationship between elevated concentrations and wind events (Figure 3-30; C and D), stream flow events (Figure 3-31; B), or municipal outflow data (Figure 3-31; C,D, and E). Wind speeds averaged only 5 m-s", and the mean river discharge is below average at 3 m*-s during this period. However, the dredge was operating in reaches 2, 3, 4, and 5 from October 25 to November 5 when the spikes are most obvious. After November 5, the barge moves outside of the entrance breakwaters to reach 8 (off the definition map in Figure 3-1) during which time the frequency of the spikes decreases dramatically. This suggests that the concentration spikes observed are most likely the result of intrusions of the dredge-induced sediment plume. The spikes are of short duration and tend to occur at times of maximum current velocity, evidence that the suspended material is being advected from a farfield source, as opposed to local resuspension which usually occurs just as tidal currents are increasing, or from sediment settling at slack water. During the latter half of the DAISY deployment period (November 11 to December 7, 1993) several major events are recorded in the suspended material concentration data. These disturbances differ substantially in character from those that were observed during the first part of the deployment. In contrast to the short duration, spiky perturbations of the first deployment, the perturbations of the second deployment were longer lived and significantly larger in amplitude. These events also had a residual effect in that the average background concentrations increased to near 20 mg-I! (Figure 3-32; A). The first sustained event, beginning on November 19, persisted for more than three days and increased concentrations to more than 700 mg-1!. These concentrations exceed the maxima indicated by water samples taken in the vicinity of the operating dredge (Table 3-3). The dredge was working in Reach 5, 1 km south of the DAISY site. We believe this perturbation was not simply the result of dredge-induced resuspension. Even when the barge was operating much closer to the DAISY (Figures 3-6; A, 3-9; A, 3-10; A), resuspension events of this magnitude were not observed in the data (Figure 3-30; A). The dredge did move into Reach 2 on November 21, and may have contributed some amount of material to the final day of the event and possibly slowed the recovery of the system. Again, both the echo sounder and DAISY data indicate that the dredging process is incapable of producing such large amplitude and persistent perturbations at any site removed from the immediate dredging point. A more typical data record would show the sharp short-duration spikes in the suspended material concentrations (as seen in the first part of the deployment), not the long duration, high concentrations records observed here. There is no indication of increased stream flow (Figure 3-31; B) contributing to the suspended material field. However, effluent data from the nearby East Shore Water Pollution Abatement Facility (Figure 1-1) does show a significantly higher discharge of suspended solids (Figure 3-33; C) on November 19, a Friday, which could be the source material for the event. Records are not kept on weekends at the municipal facilities, and it may be that the higher than average effluent flow continued Dredged Sediment Dispersion in New Haven Harbor over the next two days, Saturday and Sunday. An additional contributing factor to this event may have been the winds. Wind speeds during this time peaked at 10 m-s” out of the north for several hours (Figure 3-32; B). The fetch is sufficient and the winds strong enough to disturb the sediment-water interface at the water depths typical of this site. The wind, in combination with the increase in total effluent and suspended solids load from the sewage treatment facilities, appear to have been the principle factors producing this event. After November 21 suspended material concentrations decreased from the maxima, although instantaneous values often exceeded 100 mg:I' resulting in average values significantly above the pre-perturbation levels. Included in this portion of the record are several short duration perturbations most probably caused by the inshore migration of materials resuspended by dredging in progress within Reach 2. Again, the majority of the perturbations during this period show characteristics different than those expected for dredge- induced perturbations. This may be the result of a residual effect from the previous three- day event, increasing the overall background concentrations. On November 29 another large amplitude perturbation was observed, persisting for approximately 24 hours which does correlate with an increase in river discharge 3-5 times larger than the average flow. The salinity record shows a decrease of nearly 6 units on the practical salinity scale during the event (Figure 3-33; B). Records from the East Shore Water Pollution Abatement Facility (WPAF) do not indicate that there was a substantial contribution from this waste facility. However, there are 24 CSOs which discharge into upper New Haven Harbor; four of the largest ones are located south of the Tomlinson Bridge (Figure 1-1). Thus, although the data does not show significantly elevated effluent levels from the East Shore Facility, there may be a considerable contribution from the CSOs to the observed high concentrations. Potentially augmenting the increased river flow and CSO discharges, winds during the previous two days averaged above 10 m-s', and reached maximum speeds of 20 m-s" from the south. There is enough fetch to produce waves that would resuspend sediments at 4 meters depth, which then would have settled as the winds dropped and shifted to the north throughout the following day, possibly contributing to the high concentrations recorded. There is a similar event which occurred during the latter part of the day on November 30, again, possibly the result of stream flow 1.5 to 2 times higher than average, increased CSO input, and northerly winds. The final and highest concentrations recorded during the entire deployment period spanned two days—December 2 and 3. No major stream flow events were recorded during this time. Winds were initially northerly but shifted to the east during the second day with speeds less than 10 m-s'. There appears to be no significant contribution from the East Shore WPAF effluent. Although a northerly wind seems to have induced elevated suspended material concentrations in previous events, it is not likely that the winds produced the observed increase during this two-day period. A 700 mg-I' perturbation, persisting for Dredged Sediment Dispersion in New Haven Harbor several days, represents a very large event, and winds would have needed to be much stronger and of longer duration. Other sources of suspended sediment sufficient to supply the mass needed to produce the large amplitude perturbations may be the additional regional outfalls and CSOs located throughout New Haven Harbor. Data sufficient to quantify the effects of these facilities on the regional suspended material field have been difficult to acquire. It seems reasonable, since all other contributions can be eliminated, that such sources may in fact dominate the observed events; however, the available data do not provide conclusive evidence. 4.0 DISCUSSION The first objective of this field investigation on dredge-induced resuspension was to determine the normal background levels of suspended materials in New Haven Harbor immediately prior to and during the dredging of the navigation channel. The DAISY data indicate that, prior to dredging operations, background concentrations averaged 8 mg:I". After dredge operations began, short duration spikes on the order of 100 mg-I' were observed, but concentrations decreased to background fairly quickly. Only during the latter half of the deployment, when a number of environmental and anthropogenic factors combined, did the mass of sediment in suspension increase to a point where the background concentrations became consistently and considerably higher (20 mg-1"). The second objective was to monitor the plume of materials suspended by dredging operations to determine the spatial extent of the plume and its trajectory relative to the areas identified by the State of Connecticut Department of Environmental Protection as winter flounder spawning areas. The acoustic data obtained during the field surveys document that the sediment suspended by the dredging operations did, at times, migrate outside of the channel into the adjacent shoal areas. Excursions onto the shoals tended to occur during maximum tidal currents, and the plume was more likely to stay within the confines of the channel during early or late ebb tides. Unless the currents were at a maximum, the plumes became patchy, narrow, and difficult to identify within several hundred meters downstream. This is supported by the water sample data which show that concentrations drop fairly quickly away from dredging activity. The CTD data indicate that there is a slight decrease in surface salinity at the head of the harbor, and water sample data do indicate considerable freshwater influence in the surface waters immediately adjacent to the municipal outfalls. Elsewhere, the water column is well mixed and vertically homogenous, with minimal salinity or temperature stratification. This suggests that the water column had a negligible effect on the observed vertical distribution of the plume material. Other confounding factors which can influence the horizontal and vertical distribution of the resuspended sediment plume are related to the physical and logistical characteristics of the barge operations. This includes bucket cycle time, bottom sweeping, number of passes at a particular location, and disposal barge Dredged Sediment Dispersion in New Haven Harbor 10 movement and overflow (Collins, 1995). This may partly explain the plume traces on the November 2 ebb survey which are small and patchy; the bucket cycle was aperiodic and intermittent throughout the surveying period. The acoustic survey data also reveal that at the source of dredge operations the horizontal distribution of dredged sediments at the surface is extensive but tends to decrease with depth, i.e., conical in shape. This counters one of the more basic assumptions in most models of dredged sediment plumes, that of a homogenous vertical line source (e.g., . . Christodoulou 1974, Schubel 1978, Wechsler and Cogley 1977, Collins 1995). Some of these models also assume a widening, or increasing horizontal distribution away from the source. The acoustic data exhibit progressively patchy and asymmetric distributions away from the dredging source. Additionally, in nearly all cases the traces showed that the shoreward, or shallow water, boundary of the plume in the areas immediately downstream are more well defined than the deep water margin within the navigational channel. This characteristic appears to be the result of gravitational flows driven by the density contrast between the sediment laden plume and ambient waters. This contrast decreases at the deep water plume edge; the combined effects of particulate settling, advection, and mixing cause the boundary to become more diffuse and difficult to define. Such spatial variability in the- distribution of the plume sediment would seem to indicate that, unless models are able to reproduce these features, it can be expected that modeling results are overestimating the mass of sediment downstream and in areas receiving settling material. The DAISY data also indicate several instances when suspended material resulting from proximate dredging activities intruded out of the channel and into the shoal areas, as evidenced by suspended material concentrations much larger than background. At the beginning of the deployment period these events were quite well defined and short lived. Resulting maxima seldom exceeded 100 mg-I'. These events are similar to those previously observed during monitoring of dredge disposal operations within Long Island Sound (Bohlen et al. 1992) and are representative of the passage of relatively small portions of the suspended material plume. A majority of the spikes are occurring at times of maximum current, suggesting the material is advected from afar. If the site was a sink for the dredged sediment, spikes would occur at slack when material settled, and in the early stages of the tide, as the freshly deposited sediment would be easily resuspended. During the latter part of the deployment, the data show several major perturbations in the suspended material concentrations persisting over nearly two days during which maxima approached 800 mg-I'. Since for a significant portion of this time the dredge was operating well to the south of the DAISY site, the dredging operations cannot be identified as the principle source of these perturbations. Most of these larger events are clearly correlated with stream flow, wind stresses, and discharges from municipal outfalls and CSOs. However, the causes of the remaining events are not so obvious. There appears to be no Dredged Sediment Dispersion in New Haven Harbor 11 relationship with natural causes such as wind or rain storms. We can only speculate that there must have been other undocumented anthropogenic activities or discharges that may have perturbed the ambient concentration field. 5.0 CONCLUSIONS The variety of data provided by DAISY and the echo sounder surveys indicate that dredging operations resulted in the transport of some amount of suspended material into the shoal areas flanking the navigational channel. At the DAISY site, this transport served to increase suspended material concentrations for a short period of time to maxima approaching 100 mg:!', an order of magnitude greater than ambient concentrations measured prior to dredging operations. The effects of these perturbations on regional water quality and/or benthic habitat must be evaluated relative to the effects of the larger amplitude, more persistent perturbations produced by the combination of wind waves and outfalls. The DAISY observations suggest that, against these latter factors, dredge-associated resuspension represents a smaller amplitude and shorter duration perturbation. Dredged Sediment Dispersion in New Haven Harbor 12 6.0 REFERENCES Bohlen, W. F.; Cohen, D. R.; Howard-Strobel, M. M. 1992. An investigation of water column currents and suspended sediment dispersion associated with dredged material disposal operations: Cornfield Shoals Disposal Site, Eastern Long Island Sound. Prepared for Science Applications International Corporation, Newport, RI. Collins, M. A. 1995. Dredging-induced near-field resuspended sediment concentrations and source strengths. Dredging Operations Technical Support Program misc. paper D-95- 2, prepared for US Army Corps of Engineers, US Army Engineer Waterways Experiment Station, Vicksburg, MS. Christodoulou, G. C. 1974. Mathematical models of Massachusetts Bay; Part III, A mathematical model for the dispersion of suspended sediment in coastal waters. MIT Paper R74-12, Cambridge, MA. Mardia, K. V. 1972. The statistics of directional data. New York: Academic Press. Richards, D. R. 1988. New Haven Harbor numerical model study. Final Report prepared for US Army Corps of Engineers, New England Division, Waltham, MA. Schubel, J. R. 1978. Field investigation of nature, degree and extent of turbidity generated by open water pipeline disposal operations. Report D-78-30, prepared for U.S. Army Corps of Engineers, US Army Engineer Waterways Experiment Station, Vicksburg, MS. Wechsler, B. A. and Cogley, D. R. 1977. A laboratory study of the turbidity generation potential of sediments to be dredged. Report D-77-14, prepared for US Army Corps of Engineers, US Army Engineer Waterways Experiment Station, Vicksburg, MS. Dredged Sediment Dispersion in New Haven Harbor MN 8SL°PSoCL N S07 9To1P qoqdgaud Ss “MOOS MA MOOS N ‘9S-€S “6b# Ob-vc# QI JOquisAON 3 z E aa 97 “St ‘It 61 “LI ‘Ol ‘bl ‘714 Pooly 210Jaq AM 109° PS o7L ASIVG WL ‘OdS 97 woes “qqg N tI Llolv SZ 1990190 sojdures 13}8 AA dvay/suiidg | a38)9 aplL, | uoRNE07T sspaig eh | SUONIPUOD [eJUaWUOIAU puUe satANoYW Aaving pjaty Jo Arewuins M ,OSL*¥S CL CE-8C# ZI Aong ‘pp-Or# 1 a4 N ,OCL’SIO1V QO] JOQuUISAON NM Lvl VS oCL L@ ‘9@# 9% poo] N ,SISSTOIP C] JOquisAON L M .£S9°PSoCL SZ “ve “EC# 9°7 suds qaqa N ,SOS91.1P I] Joquioaon qOuvd W1a‘d4s NM ,£S9°PSoCL (2) ASIVd W1a 9°27 suuds qqa N ,SOS‘91 1b I] Jaquicaon ¢ qouvd WL ‘ods MN ,LO8' PS oCL g1 Kong ‘AsIvd WLa v'€ suuds qqd N .6SL'91 01? € JOquIoAON p 81D ‘PIO ‘E19 NM S80 PS oCL 69 ‘80°LD cv qqd N ,v89°LIoIv ~ JOQWOAON € M ,£69° PS CL CY poot N ,9€9°91 IP 7 JOQUISAON C HE Zz -5-,Ul ad1By sig’ JOATY T-€ 91981 Table 3-2 Results of Water Sample Analysis Depth SMC Salinity Latitude 41 N | Longitude 72 w | a Date | StationID | (meters mg/L m(ESS min min 25-OCT-93 02-NOV-93 03-NOV-93 11-NOV-93 16-NOV-93 18-NOV-93 N of Scow W of Scow _S of Dredge (Dap) (s/uid) (S/uld) (suo) 1# dura} 1s¥9 Ad‘T yy410u Ad’T qq A}ID0}9A ASIV Woy Req s1YydeiZ01pAH pue Jajayy JUaIIND Jo Ayewiuing jeonsnes €-€ P42 L is ih ae) > Se oe pore sou tho ae iain Bah f ya Roe hes hy ih f ae Pi er. Cane W ian i os et Ns kk ae ae on: £5 Blyivonenae i t ¢ " pr i fe . bia Ey oe 4 6 16 ans ; a A a aa a, y ys ‘ . os << 607 4 Y: } a 5 X24 “va S| *"re- s Sy tore Bathymetric chart of the study area, New Haven Harbor, CT (from NOAA Figure 1-1. Nautical Chart #12371 - Scale 1:12, 800) New Haven Figure 3-1. Great Lakes Dredge and Dock Company’s reach definitions, New Haven Harbor 30000 WLLLLLLLEL, EE S LLL) en WLLL 8 LLL. Se LLL 0) LEE” LE} re) CLL LLLLLLLL LL ee Ww LLL ee Ve SLLSLSSLLLLL LALA ae LE a eee LLLLL, ee LL LLLLL 2 oO LLL. Se HEE: LLLLLLLA w SLL LLLLLLLLLLLLLL LLL“ LL CHEE LEE LLLLLL LL w EI LEEEI-I-IIII&E- LLLLLL LL wo WLLLLIILLLLILILLILLLLLLLLLLLL LLL LLL LLL LLL LLL LLL LLL LLL LLL 0 LLL LLL LLL LLL x) LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL aa a 0 LLKLLLILILLLLLLLLLLLLLLLLLLLL cn o OLLIE LLLLLLLLLLL LLL LLL LL LLL wn WLLL LLL LLL LLL KZA a eee KZ ee LLLLLLLLL LL fs) as LLLLLLLLLL LL wy LLL LLL LLL LEE , WLLL LLL. i pa IE ZZZILI 0 LLLLLLLZLZLLL, LOLLTLLLLELE IIE LLLLLLILLLILLLLLLLLLLLLLLL LLL LLL LLL 2 KZ fe LLLLLLLLLLL LLL LL ak LLL seabesese LLLLL A . LLLLLLLLLLLLLLLL LLL oe LLLLLLLLLLLLLL LLL LLLLLLLLLLLLLLLLLLL. LLL LLLLLL LL SELLLLLLLLLLLLA SELLE: LLLLLLLL LL a vSseeeeee LLL LILI LLOLTTLLLLPPPLTLLLTLTLLLTLOLTTLEE soaesteees ———=— LLLLLLLLLLLLLLLLLLL LLL LLL aaeaaae : ON LLL LLL LLL LLL LLL LLL n ee IEEE aa VLE CN LILLE LLL LLL LLL LLL LLL LL NZ LLL LLL LLLLLLL LA S KX LLL LLL LLL LLL LLL LL n LOL LLLLE ZLLLLLL, LLL — LOA LITTLE LLLLLLLL, LLL LLLLLLLL - ZZ ae LLLLL LL LLL LL LLL ZLLLLLLL — LOLOL LLL LLL LLLLLLLLE - LAL pp panes — LOLOL LLL, ie ET - LLL LLL LLL LLL LLL S WLLL LL LLL LLL LLL a LLL LLL LLL LLL Oth tbh a LLL LALA LTE E EEE a LLL LLL LLL LILIA Lge |S LALLY LLL LLL es WLLL. LIE S\ WLLL. LLLLLLELL LE a ZZ 25000 i : 20000 +. 15000 +. 5000 10000 (SSOIS) POAOUIOI SI9}OW JIqnd AN -Oct Sediment volume dredged per day from October 2 to December 3, 1993 Figure 3-2. latitude Z i | New Haven =A =VAR8 =f[28)2 =7 259) =VZ2)0) longitude Figure 3-3. Location of the dredge barge during each field survey (A) Wind Speed (B) Wind Direction 0 10/25 11/01 11/08 11/15 11/22 11/29 12/06 Figure 3-4. Meteorological data obtained from the Northeast Utilities Norwalk Harbor station: (A) wind speed, and (B) wind direction, measured at 10 meters above ground level (A) Wind Direction - deg True 0500 ——— FS Wall Sa (B) Wind Speed - 1000 T T T 800 3 600 8 6 400 we) SE 200 0 i i i 1 1 i —t NN a ees 0 2 4 6 8 10 12 14 16 18 20 meters/sec Figure 3-5. Summary plots of the meteorological data: (A) rose histogram for wind direction (plotted as the direction from which it comes), and (B) wind speed histogram sojdures Jo}eM JO UONLIO] 94} YUM sidesueN pue uOTsod o31eq (gq) ‘JO9SURN Yo uO payeaurjap ournyd ay} JO soUEIINIIO JY} YIM SUOTIedO] JOoSURN puL UOTIISOd 93Ieq E66] “SZ 1940190 (VY) °9-¢ DANSLY \Seq SIOJOUI \Seq SIO}OUI 0001 008 009 00r 007 0 0001 008 009 00r 007 0 Oot ool ASIVG © yoosue ly, — 002 Seg — 002 O0€ O0€ 00r jpofino 00r 3 3 Q Q 00S 2 00S 3 ZA 2, [o) (o) rat SL jar =n | 009 009 See | OH + 00L 00L | XASIVA © yoosue1], — fey 008 008 | | | AAS/GAE - SZ 1990190 | | SUOHeOOT aides (q) 006 Sa ountd (Vv) 006 I | ! | | 000T 0001 "JSOM 0} SEO SUN B]IJOId sYT, “SZ 10q0}90 UO adIeq JY) JO WeaNsUMOp sia}aU QGZ oUINid Jo sayoyed SuIMoYs | JOoSURI], JO d0eN) JopuNos OYdq *L-€ auNnsiy OS ~~—— 34 ¥811V9 == mais PHIM DAVY yi FB Ya Yi Be} Ary HA YES ict ARE IE 4 B a neue Q svom ——— a Som = : aes -4-, ee . : = - - = - -- |-7 _ _ -—— : —-: FS oe PST ao = SUarn| fay pone cont ; : ST = a on es SS 4 oa: 4} = = peered So ; : a 4 o Pi We 10 8 aay AM y ¥ 47 Py 1 ySB9 0} ISOM SUNI B[YOIg “CZ 19qQ0}9O ‘[[eJINo SuyeuIWN|]] poyuE oy) Jeu soeN) Jopunos OyDq °S-¢ JINSL a Te: Bo | | iia F ew : lh | | | I li a Bali . 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AMT fer uit Rada CRETE 12) | () jell ae | (SSS aS aa [= aes | (ee Gaerne ees} ieee Sree Fea aa] errs] ae] ane] eae ee ee ee SS ates] 0 30 Saati +143: S 180 - 200-———— CALIBRATE ~{00C-—— CALIBRATE CALIBRATE: Echo sounder record from Transect #31; portions of the plume have been advected 200 meters downstream along the eastern flanks of the channel, November 11... Profile runs east to west. Figure 3-18. "ISOM O} JSVI SUNI I[IJOIg “juoLIND AjIsuap B JO soNsuajoeIeYO YIM ouINyd yUsUIIpes pasporp oY} JO sjdwexe ue SUIMOYsS ‘][] IOqUIOAON UO a8Ieq OU) Jo Ye snl ‘7Z# JOoSURI], WOIJ JOR) IopuNOs OYDA "6I-€ BANS | ill Savy sl tv9o ————“ 9 HI Ht LC ae mT Tin OM SRS CPO WA? NH A | SP eee est Kn 00] RACAL MH) as eeaarates if aot aes are, [ze ae L 77 (EH 43 Trae Hott PR SRR HA 1 62 Ba MTA Fj + CHAU SEALS RT aan a La ret Piet! | = ldo |S} —_— @® ‘on SASAGNS NSO a in i a ten "0Z-E 9ANSLy sajduies 19}8M JO UONIO] Ot) YIM sjogsueN pue uOTIIsod a81eq (gq) ‘JOESUeN YoRd UO paleauljap ournyd ay} Jo ouaIINI90 ay} YIM suOTIedO] JOOSUeN pue UOIISOd a31eq EGG] ‘ST JOQUISAON (VY) JSbq SI9JOUI \seq S1ojour OOOT 00S 0001 00S 00ST 00s1 00S- poosuely, — 0007 aL x yoosuel], — sp o31eg — 0 0 00s 00s ) 5 a a fe s a a | é =< sh g ie S | Obi nai ae > ie 1 0001 | | 40001 | ! ! 1 | | | | | i ! i / ! ' | 1 ( { { ! ! ! | i | i ! H | pooyy - S[ TequisAON | ! suoneooy odes (q) | | 00S1 suury ound (vy) | | O0SI i i ! | ! | ! | ! | ! | | | | t ( | ! i | | =| i I ee bol im 0002 | \ | | | | | | | | | \ | | | | FAN AE Te tp! ihe is BUA WAT iE BER, {tc ome 53s Hen] [Sees | (ake [Ee [Pe aie | (a S| {eee eee ee ATI OEE STATA Sad BOLT: AR. OPS WTO CPE FT REST es ST A ULI BH PEL SS ORMOLATOL IS RREURS a ATT | emesee re | [ae een | =r [eee (eee SSS Sa aa] b) Aas EOL 2 yee UP ity [esses Taf Sec a EE ea eA em [Ayer jueNcer eo) | aes ees Wa eee ae ea eae ene SSS [Ears ae [ See eeaE TS | [eee | Lae Sel fe ‘Wy. B SAL ADT ORE TOC AAT? 2 aN a acl! Ua CALIBRATE SH Pa as Be SG HE TAS Pat Po ge li ad = a g be Bea A Bs H - ee : aa Be 2H eae | |e + mange pane fy :O; eis 3 agaeee lic aE a Bt) Este aei- f a AE ATA mB Poe 14 if Ce PAV OTE yh ye $7 FOL WL {RES yt Rana Ee eae S| Sa ee [Peers eal SaaS] Ea =e re [[taeemen eee aaa 50 (rere Perea eek eel fea va Bad i AR RN ey WY Pa Gr er ay patter Ge BAST OWLCUr < VEST RU Le) EE PE {ey at ea NE [Soe eeraoeee Wace | [sca | Eas) G ae [fama ee | ae a =a) aa] aa reel aaa -00————__CALIBRATE ee ee peancea: Seer a] aes [ee eS] 5 ue Mesh al bec a iA futeney taSecsres ta) ESSE esas Sd (Ge ee | aed (ae | eee Sara p= eA YDS Sai RE BLD RTA Een rT) aaa) aaa =e | eee Se SSS Saas Sse ESS SaaS | eae ee | Lae) Ea eee | Rages Ree [een | Seika hal So ake Hk ah Ty AR Pe RT Ce Dears BE : AA rath MARANA ar a. iy NTH Bay i ch Mbeki: oot Poe hocan EN Patches of the plume observed in the shoal areas of Morris Cove, 650 meters northeast of barge operations. Profile is from Transect #39 recorded on November 15, and runs west to east. Figure 3-21. so[dures JoJ@M JO UOTBIO] OY) YIM sjoosueT pue uOTSsod o3Ieq (gq) ‘109SURN YORE UO paleourjap aumnyd ay) JO sousrINIIO oY} YIM suOedO] JOosUR pue UOMISOd 931eq EGG] “9 JOQUIZAON (VY) °77-€ VNB qseq SIo}Our yseq SIO}Our 0 OO00T 008 009 00) 007 0 0001 008 009 00r 007 00r- 00r- 0vH + GLO x yoosuel [, — joosue1], — 2 2 as 007 Beg — 007 0 0 007 007 00r Z 00r Z g a wn i n Z | zZ 009 & ! 009 & | 008 Ov# a 008 | | | ! | | OO00I | 0001 | I | | | qqd - 91 ISquIsAON | ! suri] ound (Y) = 0071 a i * | | | | i | | | | ! SuOTIeOO'T ajdures (q) 00ZI 1 oor! oor! i | ! | | i ! i | i | | | i ! | | { | ! | i i ! ! ! i | | i i ! ‘JSBd 0} ISOM SUNI pUe ‘QT JOQWIOAON UO poepl0del Op# JOASUBI], WOIJ SI O[O1d “a3dIeq ay} JO JUSLINOUMOP SIA}OUI QOL ‘PAOD SLOW] Ul ‘JoUUYD UOLEsIARU oY} JO opis}no peAresqo aunjd oy) Jo sayoieg "CZ-¢ JINSL ivy! q 7 7 fi 4 [i IR oS Sareea i ESS b Rea 2 Pr We YT Th TT ES TPP Th Te SAT ay CREPE SITE TEPHCPIBTU OPI PUMA Tb ed Mare TR La} i AUTON ESS IGT GH BTATGG AGRI BETS LAM eH PANT SENT A PERU ALVA ROH on AA DF AKAMTMR ULAR cP AM HS Maa A QA Pee] wD M (EE ee eee eee ee SSA | SS a a YP eR | |e i ee |e || Rd | mE Le ee | ae es | eee |e oe |e | Bee (eS | TTT EAL MT PRET ETAT PS TPA Se KC TE PST SOUT EER UIEONTUTCH EAM ATOR te a ee ee lan ee ERE) DVD RSAEUOEN TER AO HVE DOT PsA ENS a a jae! ERAS RAP | SMOE OES 51 “SAN PAS ea URES GOUT 0 CIR IMECTEMMD AMA TEVE NEED OCU REPT LA CIA TTR CTH ACESS AATF BOPUVGS g IAIVE RISER RTPA SheaT, TESTER PSEUERTY 272 SM) Es BLES od WT ER OY NT DE: SWRA CUM ES Tp Pre GFS | ELM UOUL Ug ROE! Luc EMAL seguro ete Lioeaa Apes om PDEA! ACLS AUTOR PU WET SVT ICY RPE OSL AUP MINER) YE Vs A A OR a Yb A eT DL hae RPE OND ESM ASL ff LEER MCU SPE A POE An iy Ree Ty) A eG iy, aN 7 cP MPLA MEI PL ATS FAMINE SWAB a aca tee Sse 1 SOY PC ED FC aes RS ESS Sees) PARMA ESTATE HY SAD | NCCT CATT Ee er | Soe rm A TAC TU PEPE MAW BS ee iE AGEL MGNAY (HL RULE iin Se pL a aaa a 7 Tee Ae tael lsat ian sear) SERN Baa eat ot M6629 ON 1334 NI Hidga “ so]dures 1a}eM JO UONROO] SY} YIM sjossuUeN pue uOT}ISOd o81eq (gq) {JoosueN YOeO uO paleauljap suinyd oy} JO doUeIINIIO ay) PIM suONRdO] JOISUeN PUL UOTIISOd O3Ieq EGG] ‘BI JOQUIOQAON (Y) *p7-€ JINsLy yseq SI9}OUr jsey SIojoul 0001 «008 009 00r 00z 0 0001 008 009 00r 00z 0 | | | | | | 07H + ial 0 | aLo aera joasuel], — yoosueI], — osieg — 3 — I | a 002 L me oat 002 ee, | | | | ase 00r ‘pce | 00r i] 009 L | 009 peo ee a : a 008 e 008 2 Zz Z g. g = = 0001 0001 (L ) -20 (E) North Current Component -20 11/16 11/19 11/22 11/25 11/28 11/31 12/03 12/06 Figure 3-32. Enlargement of the period during which the largest SMC perturbations were observed, November 16 to December 6, 1993. Concentration data are compared with wind and current data. (A) SMC (C) Effluent Total Flow 100 ® 50 0 (D) Effluent Suspended Solids () Effluent Turbidity 10 n 5 5 0 11/16 11/19 11/22 11/25 11/28 1181 12/03 12/06 Figure 3-33. The suspended material concentration data compared with stream flow and effluent data obtained from the East Haven Pollution Abatement Facility for the period November 16 to December 6, 1993 rh Lit ana APPENDIX I ECHO SOUNDER TRACES a 4 Fhe hate leita bin : ily Fe i il i Mes ‘i HUTT tf : =I li Beginning segment of Transect A acoustic profile surveyed on 25 October 1993; profile runs west to east © |). | att its fee A SRN ae Mo. GC- 20011 a nen -- —-——- ~~ Hil EM ‘ ce bi, Ce | al I Nae | sue u : aS Se ry DEPTH IN FEET Hen i Po t 1) itll Libis > ye | A vit ae Seer] Besa] Lata = Fn ie Middle segment of Transect A acoustic profile surveyed on 25 October 1993: profile runs west to east T < . . il il tl i Hai, ae | il il ‘> i | lf : ! NCRCEST G wn q a i ee é a WINN ee a ee sae saUAbiNEGz pee ill Pr | era Lei ta i i ‘DEPTH IN FEET End segment of Transect A acoustic profile surveyed on 25 October 1993; profile runs west to east + wit, ane a . on : wp ioe F ast 4 f be Mr a A ll I ites! : TAT i 4 i a A q oo ~% oH al 7 it ili is Cn J “rar ry. ‘a 1? yay au iM i MA i | J I i al aa dil WW Ys fa A aa bs : cal ili il lil Mi I’ ae z -~AULEL ah i | ia = wtE———— 60 Beginning segment of Transect B acoustic profile surveyed on 25 October 1993; profile runs east to west ; ie ii; ul q Table Wi . bean a TTT mm UMN if Hd if mm = Te mM J Y i a N i S Mi PLA End segment of Transect B acoustic profile surveyed on 25 October 1993; profile runs east to west jst 0) 18am SUNT a[IJoId <¢66] Jq0100 Cz UO paXsAIns o[tjoId onsnooe qj yooSURI], pew] F Pott a + Es Oa on ill il, i : aula eh p> | Ae 4 : : hi : = : | : = Clans Ath & Sr Sra profile runs east to west Transect E acoustic profile surveyed on 25 October 1993 ———__—_—_— ———___—_— 3se9 0} Jsom sun oplyord ‘¢66] 3940100 Cz UO paXaans aItJoI1d ONSNODIe i yoosuel |, i r Bee b * Ss z fe. ADM race et pen Rg ep é HM BeRGelaae mewn eel GbE? _ _|__ _ Si 7 I oe [aon aay Sze IRAE HI Seana [..y ESS REY. Feet STA SS eI a os os) oa ft TEL DN HEL TTS FG AR SVS ETE 7% Fees BASRA TOY MT Ce IM TE ous Gals EF, Paes pated gw Faria Ob or Eee TN ROH RTT EME Had CSS AOL TT Se TRACT EST OTA of hy a A = PARE BALE ot RE EOD PEM ADI NOH brea NTR PSSA LAS nos rst, }SaM O} Jsea SuNI a]IJOId {¢66] 19qQ0190 SZ UO pataains afyoId oNsNoDe H JoosUBI], JO JUaWdas dulUUIdag Erin be ll yz d Ll gicioickiw | ares) area orn | iia (EN BAS ee pO CAT erg | BY a iD) ay D cad a; ete 7-1 91333 Ml H1id30 - ISOM O} JS¥9 SUNI J[IJOId '¢66] J0q0}OO SZ UO peAdAINs aTIOId ONsNooe 9 yOosueI], Jo juoulos pug by — Mm —— = VanIWQ ———, ll intl 4 | | hy W062) CALA SCRA ROLES BANS AT TUR: URE HT” A Rs - 8 es Le wey oS TREY - 4 Te. TiS RA VT AREER 9S SS ET Mt wh A A b hr . NI il =f : i : Z 24 SOPH NE FUE Deh te ey”: haa thle Adve vy hts MB PT Wabi Arte ANG A. dg Sy Ig Aide re foe” phy? rept bir/g ~ Rubs “DEPTH IN FE Vibrant pup getoea . \ AY aid $ sf HAT fy CH ben? + TBA a 5 bs sah ee CPE DALAT Rai Efi GURY m An LEU ROLE TY 620, TI itr she S CWE ELD, Aude rence Tak: de, : he 2 a, a : : se : a. ? mt xe els le : a f f a A i eed il ou dels rl Ha eT ! a . : a ra ‘ Sata AF SU fe cy at Gi al x 46 : , qibacen om ey al ie BS oe een | : A i Ah | Ne ae a cl Beet || | tt er inl a Ik s Beginning segment of Transect H acoustic profile surveyed on 25 October 1993; profile runs west to east UT | TT ila ‘ =f ve = Vf SB ‘ < ' > is 4 ° eS "ar inate ST eC kane sige wads Als «Spe ‘etary STAAL wet oe Py reek. eee eee ata, q "Es fb at be Fa + k ~~ r= aga fe ‘= kal i 2 = an FSi 2 . ME 5 nt : oo UG TM RUT TRE RP ODS FAC AANTE (PE iS YARNS : ee SSS] SOE Seal Hibedt tae ndash A: ar Eh ad A 157 { aN esa2t Unite gntay iF pikeve rater ts U iW iJ ‘ 4. CTL 5 : = he CE OR BLA iY APA ALY a i 3 i < = NTA AL hts as bk! NE eres a a a] reas Rei en hy AD. TANAD,% reer ds IE End segment of Transect H acoustic profiie surveyed on 25 October 1993; profile runs west to east ater ae Terese alse ehal Redtaaoed baa 20 ee) ¥ : i T | i , | _ SAM s ‘ : = 4 | Rr ere terry aan =f ‘ ‘ Px. : Rio Law 0 faa ll eT ldaty see rt Ul Whew Rostds Won anak ioeh wal Prick tale’ pel ea on nhs AAT wea DMb PRM VS Aey yy - i q LC A a Hd ST; 4 AES r anainveneatt zit CEPTH IN FEET oS 00 rm a ONG TA a eo! of ve J entail adel! ‘ ——— aa Mtn MONEN AY toot hy oe rs te agpaa Spe Transect I acoustic profile surveyed on 25 October 1993; profile runs east to west 1S¥9 0} JSAM SUNT oIJOId SEG 6] 12q0190 Gz UO pokoAIns ofljoid onsnooe f JoosueI], JO jUSUIdes SuTUUIdog = #3. ey | fill I Mi (Sata it CL a SPP AE SAYRE WON FFAG) 2% SOUP LS RELI PO I PS renee CA VAT abe ret H ? 3 s E 3 x eta ah rd Png | Pan Jen So a Pe 4 . b ‘ ae ot. ETHEL? re iy WaT ; if AM MAIO ES Ca: ae, Lr i Sgt RN) eat pe eet eee Cad se ca Be 3 = ie A fF pty ae a Fa ig fi a a ib: etl P| ie z is] a a it 7 i waa i r Serer 3 = , a | a I Me =a seeeas mera vey Pt . . X ee hi + aaa [Ye ML\, iy Letra oe RIO AL rr ait =: eo YAS a A LX. v ey: df ba = nate ee pterehaldeldurdaaed i L : pee Teoh . ; Litmael ey = a Tg Be Saas) ees ee J oS ee eel ee End segment of Transect J acoustic profile surveyed on 25 October 1993; profile runs west to east 189M 0} Sea SUNI a[yoid {¢66] JaquisAON Z Jo Koamns oNsnooe [# JoosuRI], JO JUoWISes duIUUIdag “y vif OR EE: SS hes. "7 IPAS we : ; : : ; TRL SOUL IT | SScAraRSe so 7N% REPU ED PS Lip ae AR, ae SS TRAE eRe BR ieee ere Pepe te ba ee edi eh . DRORGR IS PE 38 2 a #G a : a BS MA Fad": ie Dae erel ETRE 9 "Fst tenn ati si Lal apie eld ef * CsEtne Sit hr FREAES ST ee TE? BURT SAS, Pt a WRIT N AM oSGA ARAL 8 BRET LOUIE fh a | A ara CFT. TQ — Eee EAS ee are] j Sane Sah SY Tia meee a Parag era ae SPH ROBE enters arenas Ere berger = beth eres rear ca SE Oey iets vet ihe 44, ae ics ee RIOT LR SS a hte = Avi ie Pet mre we fora ae Et by ae candid, N, vay fer ELE e “abi Jor bosbeBI at Soul MR Ei vir; Aviat Le a ‘TNS met Mr BR ASS) RAMOS 51 a ‘ a he te O No GC-20911 ° © DEPTH IN FERT rapt wit foe pense _ ‘ 4) i } rm "st —— Sa) fe neg Mane ot a z i tt Tp ui fhe SPREE PARANA Ye bead OORT A ried NUP Ee BI SENT IAM 4 be yest Beetles . eae (fey Sony Ae ae Aa eng ty ARG “2 aT Lat i PEEPS steers irae en BSat; Tal. SCTyane ee : i ¥ ; ee i Mit i ; iia wal aia eee al ta MT | a {Cel st 7 eupe = Bae Fe feet if : ae I Js 3 : ll the tn EN BASS Let A ab Th, Ee is Bats sack oaitrane Ces hasan as ere tee pt a, a Aree RALLYE gare ] rR: Bog oats Emly qe Tei Ss = EE 2 Le it Ye ques A re Prd \a" DT EAA & UHckase {Pek UEL IERIE PRATT: End segment of Transect #1 acoustic survey of 2 November 1993; profile runs east to west (Ze 71 EE MBI VOT: SF AY Sy EID cog 8S 8a, CEOS SO Reg : nie 6 sees : : Sete ie brit il ) ead mt tr a wary ma: < 210 Pep tysina eats iustads OPTERON NERA TAN S20 TV SAR, PN ee Mi Ni bea YT Pad fisek SAT 796 i eer y Crh hi yy ee ret t Jann Va : os oh MRO CELA Waid BLADE: ‘naar (Aart id Ga re a a ms 8. ea A Wall aT ar EE Ts VT RANE BARA A BY BAA OG) BEET ED pp . {cies ieee aa | - CALIBRATE——~—59 il ae fe att | Ly — Beginning segment of Transect #2 acoustic survey of 2 November 1993; profile runs west to east DEPTH IN FEET) eo hg IAS TAL ITE CE AGA ROMA NOD fy ELC +N GC-QD9N SS S54 GI 2 fs BG foie atti fra Siete ee Yat i Srauieh Y sestin i fs od Fh ¥ Pts 4 ts mth te ee . a i ; - =n ty 5 a ey Se a peect tes Apes Ne hepsi 48 OAH an $''5) hb ACA Le? Las rena Cat IT SLE paid Pe EASES ABS ae oe bts Mate d ae A , x 4 y y ~ J ety : : ("4 B Y i f ¢ URVEYS,ING. ©) - MERE PY PNET ID Ved TM O Pet Bt Batting WAT Welacd tases eee (OUIETD AMS wet, Riedie ar itp a |e plete MELD a, Dill 18 ( as BO 71g”! i 1} pth avatars iva erates AREY - il or RS afeeny BL a VTL = End segment of Transect #2 acoustic survey of 2 November 1993; profile runs west to east Peay Ea (Bh 8 hort} 4 fora ee eis i is PY; BvPeol. * Q © us A Rey Dr ae EO EAD Paci TW Pah TA eke WD | 4 baat AS ONS chit D fata bir Ub da Lar A i EP HELE Eesti TAR a re on 1334 KI Hio5G ® ‘SNI'SARAXNS NVZ20 JSOM 0} Ised suNI aYJOId ‘¢66] JOQUIDAON Z JO AoaIns oNSNooe E¥ JoosURIL, JO JUoUIdas pug Sioa BREE wared a Se ns Saag Eee) Se SSS Deere eee Foe Rear ane ES Sas La ee Ease el a IO Es ; s 1 2 ts [eet 0 0$--———-a vuany 0$t--———avugiw5——, eseeegra eres a] = : Se aes) Beers Dian = areme Sere ee Shae EY ad aaa SSS IF | aaa eo Ter = ran aa [rh Seer ERS Ra CUL. « -— Sate SS) HBT TOTS” eat me re et Hl N : L | | I 4 " : j ce ae BE? esa SECRAD SAS ReVaaTOE, Co Lt) 0? Bs Ath nr a io atid aap Seal an ae (Sas TY, l Sitiae [ra 8 LON a is one eee oe ci on mereemae , ‘mahi arms ry : ena Fe Ts BRA Psat ted a Slt Begute mee SH Ad te RA Ears Pt ear Lm aa Ate sas? = RnR mae Eada’ br nabs web afl ae Dade ybd te ade hh Mamata dc wa aah EN Mish arp ot 8, Serr ern feted Hoel ve Bove ah Al tet eg Mba Mes, NS ta Signa ORAS Rn aleal Sead piatcol’ 3 bef POI Od oO Pyth gets Need yet ay wate oa MeezsDON «133d NI H1d3G ee ot ams | | | AM jill ramet eee A DEPTH it: FELT A 3 5. : d A -s x - TALI CAG’ Ap Paid ek re DE USAT Tne PO Pt nu ead Cts ea] ae SS OCEAN SURVEYS, INC. @) ie ae 5] j praesent : @ eet i] Ke Ce _ : 2 ty ae BS OOo ORE eee fy COG mane elo wk ose OF ESTED TPT FTE "4 the Cay q 2 A ad ey Yi Uy ind Bs tf uy ____ Beginning segment of Transect #4 acoustic survey of 2 November 1993; profile runs west to east MESA MIG P OGM IRSY: CAS 9s ET Ta LAST TRAHAN EHR SPARE eae PV AP PE SI Bald Veh sb St [08 itll ig aA itl va eat ae ba im im, 3 ra HN End segment of Transect #4 acoustic survey of 2 November 1993; profile runs west to east ls Nr aE ma ii 3S9M O} JS¥O SUT a]IJOId ‘¢EG6] JOqUISAON Z Jo AaAIns onsnooe C# JoosuURI], JO JUoWdes SuluUIgog 1 | iil ( 5 By Saab LIU lime d- : Bas’. ab ik AAS At be Pabee Tad | ‘ s ones a feenty B Pe One nn, D SeST EP Op an , Bes 906 5 MONE Gh BOD) QUIKAEETS). “@05° 4 i a eee @ oni saaauNs NwssQ 6. ea a an eS Se ee eee ee ee ae a hs eee 3SOM O} }S¥d SUNI a[IJOId ‘¢66] JOQqUIOAON Z Jo Aaains o1snooe C¥ JOosURI], JO JUOWIaS S[PPII] pee See Lil : =, 9 ry ai DENN TCA I oe ta \ : ag aie : BINCALWICS Ay REC eG Be AAIUTN Bee Te N es OU the me ALY Hof i ESATA AD 3.1 SS a BSCE AR RE hl “a AU Uist aa Semin its ‘ 7 ihe af NAR IR ee wh BS Th Peet rere ie Pe Oe ey Ugg Ne AINE TRY PRS Woes Rick 0 a ee nd eo i ‘ fae than FS LD of a da Va Wh hn end 4 Hd ME AR men : bes. an bot nel = o ACCS S Pants ATA PATA” Tha rude ANS AM Pat bic d rnb fred A:°4) 0 vat | EL obi ee oe N> GC 29911 - DEPTH IN FECT SSE R WE POM) 5 a Eo ps ARIE AEM OTN ALI PDD AMARA, Te, hoea eae Le EAM CEL GED UN PWM Birt TY Le ea Yn ge ae Pride tated aac ite Sit Tre ts (] 7 bE ae ms te } fal ig bea | Le sce cee or A laa ET eSe ATA Sans oe ea ie Mm ert TL t ey x ag) d oF i € §: £za e = Bai. ae Sear [ery ; | Ge emia =F ao | aor bie PME TRGETUN FA staan 2s aes ib eon y Ach nau ai ter af Darr QaNs i POO EEE J26ae. paras (pee atc Ge SMA Po EN SI 1 ATID, eres 24; RSowe at) ory aN. ty ee eOsy te Car aN oN Ly PALS OSS to: BUY RUS COS CAUBRATE— vstvre 9 shed LES a Ca RA a APR 50 oF Ay. atreacg RB AS One| cet oe oH | . } nr abs othe. Cos eis ead SEM u Ps PTS SP Layne ast AOE 8 ry era LV OK GIT CAP Abi 3 zeba?, AR. Ett ott apt eter ESS EE Ss (oY seers y eee] SS ee) Se Se] Se es Se SSS risk Sse Saeed eS ee] Sass] | Seer] eee ae ae Sey ee SESSA Ere [ee a Hei Bian ssf Uh fee atest CUTS ANAM WeSHTE RULES AD Ronee [Sass aaa [ss }——-—-__} | —— <= Tee rs) SSeS SOR ET IS] Tv d Bees) a Ra) : a [eS | re oes Se] SS] Saas ae) Baa = HBV TIAA UIs te ate ay E.G LCI Toe 8 POTS en PERU ete yb kar Gta hee A IS sath Fa uate Heb He Peed See Seta ted IAN Sere grag nate SAPP LUE ECL AVE Leaman ee A yan 17 i ‘ i ee} Bae 7 i Seseay (i oe 4 FS : = a 1 hs. = 338 Re Sezopen ae a “ego == ——— raid gh ett Pan RTOS TATE ig rate Ore STAG MAE) OA BAIT Vee AAW TTY EB HG REORTEANSAN Gs DLs FATE DS Bd RPC VPC A A ATL tit fa PRE fe HS Cea Rae UA een =: arene oy a That ae ay Hau ae ae aa 0 2 -——. —} -4+ ‘ae a el e Té SERMETE 4 eee ||| Meee Ew i Res) | Lite Q ii =: a Stree i = Papas ,. art ----——-——. - End segment of Transect #5 acoustic survey of 2 November 1993; profile runs east to west one aw re eee NPE oH MEBDSS, <2 RAS bi DELS PI eT game seed ices “Epi aD Peay ¥ hy ! ; i SCS LEAN AFAR Dl BOS RUPOETES. WA: 1M er, 2B od STAT Ji n bia es f AEDT AKT LAT3 Tb ROT IAL cmgeal 2S ad WO AZ SaaS) Ly DF. Ws parr ere pre ater a Sevarammmnca B.S. RCo ey Pe SE] EO Eee ES ieee a Se) rae Ena RS | | ih Pa ACCME It i H a inaaaaenanees CUI EEA; BN - iy ere Of se garam Peatuaey tears ty ee — at ey re L y . cj ee Pte a —— (ia ae aoe Se FUE Eee ere a et 0: GES) ese | aie) ae Soe Beginning segment of Transect #6 acoustic survey of 2 November 1993; profile runs west to east SS SS Pe ae ete IS niilll L oa d <|- LSE AN eee Use a i Lt “ ore wt ee oe t ber wed: ; i. (AES Ee) EE VT EE A POA BES, Eoin .. *-OEPTH IN FEET ° No.Go299 wee FE . ae IN OCEAN SURVEYSING @ fF es mee HY beng tare ; f : ust mr DEPTH IN FEET profile east to west End segment of Transect #11 acoustic survey of 2 November 1993 Hh | ee . ean i % a Re ij fete int Hl Pay a | | Beginning segment of Transect #13 acoustic survey of 3 November 1993; profile runs east to west 2 dtu ahiocal Ba BA RELY Se atthe Ber st iil aba a aia ate decwen ; a Se yg Ah cupieiebae tna ‘4 i UT OVARY! fe CONE AT Ces ok iol Ear 1A AE A) Ep NEG OO eg we PESTS au ae Se eigen ES se Sa 9 A EA Nae Poa oes eee ae] ar eae) SERCO R SEAS PRs Ee A) Ene ae ee a SS] eed enema Eee aaa S| Pee] See eee Ears) aaa Ee Se et er ee cat R20 TNE BAA shail deh te hon he Pritt 12. GO- ORO eB Sy atte) is “id tee ‘af ime a ae pan eae ee, See eae f, TE t cs | \ . i, we Heal 7 j a S cea /2 {DEPTH IN FEET edoe Go ap RG Ben pena en Sa teens see gitar an n=) se bey Seas ow Dee Se UN ens aL ote 2 ee BE 5. Es ie. i Pickin as renee guationaeeeans "OCEAN EURVEYS, INC. @ agai: on cned baer asaliaie — jay fl ‘tenn 1 oN i} 4 ‘ ‘ + + ' =) < ' “TES ill + ie End segment of Transect #13 acoustic survey of 3 November 1993; profile runs east to west SBoyINOS O} JSamY}OU suNI aIIJOId ‘EG 6] JOQUIDAON ¢ JO ADAINS ONsNooe pI ¥ JOoSUBI], JO JUOUIZES SuTUUISSg 2 aS ee ee ee seen eae Ee eases ee eer) = _ ae ee | 2 ae ee ee] eee ee ee Ro een oo ey Sseweer er (ae EEEnrERT a De er oe .VesIWO———~. pn om oGa- = ed 0S4——_—— 1 vu eases [$F —— = —— | ae Sees Pees Se ———— ro eer] Se Bid. fas VOUT TW EVE VERE Be Led Wer! el SOE PTT | fas win RWWA RT ne aia, 7 ae ; ie a AMEE POS TAO FV wesc abae 07g LE nee em TROP tT ‘ Senet Sa WLS MVS NET e LYE De cain aug ph as =] : Coho ee —— Pee I pa pe Peart td Pd wart Seresaprrerethndaata bi a a Ss ee eae ———| 1} pesrmarenanl eee ae —"| aS —— Sy AT Lora ELE FS LL SO 7CA LE PR VeTBL Tee A Di el oe f = F a : Sat fe 2: oe 327 : ep TS oa H ‘ sft 13 d ; < Uy. Saye BEALS cg Poneto Baa a exe a [Il a a "1-5. GEe kw eee BARRA SIPR) ae rues, tee | ES ate Lo REBT Th Sl TART F (aD) DOT FRESE TVA AEB Oh ae as eo TBE A Th2. ar NOC? ca Say aa ee PMMA bebbesl kl gee DAT Ree ute keca SS eet Ree Plisisina, RCN EL WLS LTO dF DCEO AT 2 re & re SE] TS I A A [=e ef (aves ea Eee [ aera SSS SED BOSOM SUPT TNA) ee ON rT Ten PLP alg PBMODS K Bde oe Ly OW; ARSED ROT ACS GT a OB PAE ONS 9 RT PA, PE 0 A: er DO OS 2 pgs Sp ee A TTT hath.) ges THIF. aCe ee meee RW DP RAY BAD WHATES ENE aries isi if 4 CaLisRaTE— Middle segment of Transect #14 acoustic survey of 3 November 1993; profile runs northwest to southeast Re Hi cl ee St = = ill rm A _ 4 WA 4 J Be a ine . sid an er 3 yi Ector! rN : a) \ a % ay Se \ ace ‘Face erase ee ier BEAU ANTALYA Gt WTS A Ee a DaLaannes « : a z fat dS Wee cha’: eae End segment of Transect #14 acoustic survey of 3 November 1993; profile runs northwest to southeast CALIBRATE — CALIBRATE T 5, al ee all AN AU eit 4 fills ; profile runs east to west Beginning segment of Transect #15 acoustic survey of 3 November 1993 Swo.ce-2apn 25 ate | a . . : BS oS5 ' . H a! 4, nul L | | : lh HE Beene 3 = a all ) : i Mt all al eee SITIES PETAL IPE z 0 10 - ease cea ————a ial ie } ad aT TASS fed ELA 1) 2 kf SC A = End segment of Transect #15 acoustic survey of 3 November 1993; profile runs east to west ate ae a ' % at : 4 = we ie UN eck ‘a Cane: a. sal oe iit Ht ili i ss a a al bd as Salud vet eye ke i ae ° Y=) fy: Th yw LS ‘< BCs i] i .< .O 1 zi Beginning segment of Transect #16 acoustic survey of 3 November 1993; profile runs east to west jSam 0} Jsea suNI a]OId $¢66] JAqUWIOAON ¢ JO AoAINS ONSNOSR OT# JOOSURI], JO JUoWIdaS pug os ‘31VY8IVO———— ggg —— 3LVYSIIVS ee se ||| 4 aT NI “| ted =m Ear) iS A , engenmertad ene mara a eT et i fe Yo ba suai ait ii serres AB DEC SAE pn ed MG + alt jse9 0} ]S9M SUNI a[YJOId ‘EGG JOqUIDAON ¢ Jo AaAINS ONsNOoe QI ¥# JOoSURI], JO JUOWSEs SuluUIdag —3ivuanvo =the : i HI oh] Ba tad Peta one ay i peenine Eksp ahah tere re ea Lv SAN Tahe4 WARK 04 aD Leah het Fahne ett Ofk Tiere tl PANIC NNC Aa Y: Bo: | RMU AW RS DIAL RANE A OR ETUASS MR Rar He pa M3 4) SOE ys ~ ° % BRP Ker eee ry ee hers aie e Sight Sg 7 4 ews Herta te Rel ne ety eel eer et Py a abi, TER ED OMT IGE Bley Ath z zs Brim al dB bee FUE Eats eye ESA A a Fe det sueaseneieT Be EP ee a NA OS Gra aby AU Mat BB PN ea \ Aca Met Sata eee Geen | tl helt eal 0 Se aa IAA OR he wee Rie en NE RP IIGICE liah-« tie ieee eas eat tree @ OnI'sasnuns wwaso: | id Ti Ss : an : a1 aS il | ; Wee FH Wii i i End segment of Transect #18 acoustic survey of 3 November 1993; profile runs west to east ~ CALIBRATE «o \ \ fF | hi : l 2 Ng < G agp v2) » é Ee st E ‘Ria art te tH - mas MIAME (RS vb HATE, 4 DDG dese en | |: Ree See aaa Peery ae) ——— ae ee | ae UT ESR RIM eo Ss ag TAILS Ti a3! aye -_——— © a WAS 28) é Las by ecin Keb se stds Sar hae) Oa asl boy) S05 Loy SEB BEA, HOCH AP “ahi F ey > ee . | ee nt abe, | eee . ia - ¥ «ee lo >. Ba Pe) i eee) Saas eee) ia) —- [See e ae | a a = : : Sra eer} 50 eae] er) Neer] Basra SS py | aig ; = a s be re rw.e Cie BAe! So AES BET ED de Sb Ti, see eum C aaa EM "AM eae rH Bet ee ee) | I SPer : ¢ ir 2 23Eq, Lae T 4 Beginning segment of Transect #19 acoustic survey of 3 November 1993; profile runs west to east jSBa 0} ISOM SUNI aJIJOId ‘¢¢66] JOqUIDAON ¢ JO AdAINS ONSNOOR 6] # JOOSUeI], JO JUOWSaS SIPPIWY | a Nissi Peeire ae ov A LY EOD POP VR DAE TTC PTAA TTY LP le ee ee eee ee “an WAR BR WoT WV WP URC RULER CALS PE Mt HG CSA 24 FA SACOG CPA EM BEI E-AOEUTIN LTS eee pattie PAPA IAG APRIL apo ae oc UNITE A OT GM ar acide ent ae Mi or Ba y PALM OES 1D Jaowa EER. 3 we ec vir TP Rea peg Ale arets RAG ALLS Ty Re PASH ae a Pica a TE a viernes ny Fahy 2 we ere "| Hr {=} | i aq ete : bat Ae | | t E | il ag [ [i if i tea pan ar bela Fates = iG ae | = Te [Rae a ; cs ae eye y ( ie i = c fi = re] a y A est SSeateas aE = Ue Tay Shoe Cy (Aroma Lea aa atest he ar br Ret pith sath peees ie Se es HO SPR SNe - di 2 rds “<3 = il I BU Mt End segment of Transect #19 acoustic survey of 3 November 1993; profile runs west to east | jSOM 0} }S¥O SUMI aTIJOId {¢EG6] JOQUIOAON ¢€ JO AdAINS SIIsNOoe OZ# JOoSURIT, JO quowdes Suluulsog » = i 31VYBIV9 =-—— ogy -—-— = 05 — —— == —3LVHBIVI—=——_-o0 aa SoD = aivabnve 1 OE MW on PAG i ade | “a a «qj 7 a Pet Hatt REOWAAT LES TNR DTI oN WEBS ES ALS A USL ATARI UBS SFT ITT TE Wee as 2 Thy fe Bd ‘a’ -— = | | Se SBE ODION | ALY ADDI NE Hidde. | f ea: + we | a oH E iid ded er i “¢ ee iid pes EE “il e i Fy ‘Be yaa ie [= 36) Pa Fs iil | _ HAN Hi 00 —-=— CALIBRATE feat hit CALIBRATE- “+ NO. GC.s9911 eae ness Pers +. DEPTH IN FEET yoga : me El a a aml nit | ful ment of Transect #20 acoustic survey of 3 November 1993; profile runs east to west g End se CALIBRATE— OCEAN SURVEYS, INC. @) weet > ’ ee oe ne +95 Se ne pay aye 4 ir : ; : | OR = — ie vam = He rt. FH fs ill rh r : a | Beginning segment of Transect #21 acoustic survey of 3 November 1993; profile runs west to east Pah The} id F 50 execs aay ee et H RPP PS BT PRG OT Yara oe we aR Vas il in i a EG) FAS Rohs Bie] as 4 i ' in iu TT . ih Pi x 3 E iA 0 il + ; "te 1 4 3 QE j cea wy we! : i : 5 gee ieee oc ~¥4 WecGae End segment of Transect #21 acoustic survey of 3 November 1993; profile runs west to east CALIBRATE—— Agee im Pee | ae cpl iil cette =o 0. ——-— CALIBRATE=s=—=—-1 h th | \ profile runs east to west t of Transect #22 acoustic survey of 11 November 1993 Inning segmen Beg JSOM 0} JSeS suNI alyoid {€661 JequIeAON [][ JO Aoains oNsnooe ZZ# JosURI]L JO JUOWSaS pug a . ee ’ = ‘i, hi lie ii mel ie ae Thee a Fe Transect #23 acoustic survey of 11 November 1993; profile runs west to east ————— — a a " a SOM O} ysto sunl o[lyoid S€661 ISsquIsAON [] jo ASAINS ONSNOoe HCH yoosuery], JO jusuidas suTUUISag Paamat eal abe VASE WET FT ces a PRE 5 44) z wih CPE TCE Be Scr PERRY fi ial ap : Oey Le a COO enh Ep oe Bai re ERAR MEE ATT TF os 1 a SUT TY Coll FERRIS ae eens PEW PCO Ne GLI RLISEST SHEER ETS CECT PR i ll i, Aa if tyres | Ih, La Ai | ne 4 2s Mt | : ag pay gE | et Qc ee) Ree) (ME Eee i ay Fay! VRVERTIE im ma 50 saepes Ab HI MOG (ASUS HEE OISECAM RALELRATSRS | 2 A ena =S0-— 7 BOSD AY EAT EA te SS ae a ua SNe aa SaeeeEene ait 1 OL EA A oC UA LTENPSe 1 WEST GT Ol PEROT ETRE (WALL a ae ar a |. 4 lf Q Beat 11? SURGE CEC yt fe vil | TSO LULA BEARS = —— CALIBRATE == $504 as fae) EAL =e End segment of Transect #24 acoustic survey of 11 November 1993; profile runs east to west Foca rest oes A RBM rs Ac FETT ara as By, an: TW fae SRS rab LLG Leva Ne pte tT Au peers J tk, "257 a A Beginning segment of Transect #25 acoustic survey of 11 November 1993; profile runs west to east il, by c d . P iS : 3 3 , P 1 : y A y 4 FALL VRE he ety “ian sar giessooed rad aa = il ul Ii Sa 4 4 i | aap ee | 22> = aS End segment of Transect #25 acoustic survey of 11 November 1993; profile runs west to east Pall aie ein Cn cn Ts q fi i Beginning segment of Transect #26 acoustic survey of 11 November 1993; profile runs east to west 200 SUR LIBRATE Sea § 0 ae i: i ee a Ae | Faas = | ? I a cai it | zal nn End segment of Transect #26 acoustic survey of 11 November 1993; profile runs east to west ped a cs < 3 oO 3 < 6 cea, BSS ee Lil Re ey tbe ae A rte Pet} A aun TM | Ml cv cn rie o hep ne eee eet EEE ie Op SEE 4. O | eRe :. 7, ? he zs te=2! NES: Re Ser 2 SesSe RS ita | Sees aal a MNS ee i he Ay, Eee] fi =a] F Pick os ee i eration [ome asec Af WAY Oe Ft eee eae Toe a lsc (ee Po Ede dad cess ctilan \ } EET re eo weibe be bbe ee Papier ee Wt le aN 00 TS Tera ire ato ee +6 ry Cees oe ee es 8 OL ee TT Mar. PERRO | at STs RS ATSC | a ee | DOA ele ak oe Seas enc tTe Hc ti Kraeaana Sean REET ES RT SAS a NAA ue ee [Screen eT dee ARIES Cf Esser] EYRE | RP Sai eats TES (So pe ead oeianannee om ee ss T4_4! Sikes tet te HO-I Ree] Se es a. col: OW TNE POPPA LY CE LATE CSN DL CC eT LA UBL eel |=) GREE RD = Mi oC = aR . 001 - nar ~ ; ~ 5 Sse] z Ee] ee] [See ewe ee End segment of Transect #28 acoustic survey of 11 November 1993; profile runs east to west iii, a nn cc PASSES BE SAAT TsT19 An fe | EE Te k ANE 7 VER ae fs PEAT TCEN OPAMP ak a pe AVAL |S E e e e t pd SS PERT HAD Se) “DEPTH IN FEET 0 ine Hail i 4 decade OR enim me a Se eS a= Beginning segment of Transect #29 acoustic survey of 11 November 1993; profile runs east to west es ie el eS tae) BE: rill il iil E ih: a =so -g e WA YORRAA HRA I DERE aa OTS ey ware : RS aaa FE Tl ie “greet rT of il IN SAAMI i NN CALtBRATE—————50 o c End segment of Transect #29 acoustic survey of 11 November 1993; profile runs east to west ey Ti ih ad ti y a Be | it | Lae Ee ae i . ra3] dig S. it jie E AL “i S = geome Be ea A GAL UNTTL il mM | lll Se, MM. aaece a aM Z : ae HTT ri all wi : Ili : I TUN ah ASS SIO Aaa OE DAA Y US . Sted ax INET. Tae FR oe Aa rears ee Ne opr DRS a | ines a ee i p ae 4 ; ey ie cee lin, | aaa ™ . evr i Sere, Otte a, Aes] Ea] [ Sree ere | GSS) [ errata SaeTesosy) ane a 5 = 5 1 - = Oa gees Bsa Ra = I I I at al , : eri G | il =e Il | il tH | Transect #30 acoustic survey of 11 November 1993; profile runs west to east ‘‘ = 2 oe 4 a) “q 4 : Ap |: 22 I _ [E a : sal zs ue ste a Va E | FA OCEAN SURVEYS, INC. ry a PY ta Ca ay eras a greeer 7 HAs SUES IMTADIE: Rd ERT TR EG Ge a. es w Jed hal Ub dd Bourgas rr bh | ahi eters | Bhat |} STULL CXL BG TT 00 ———___- CALIBRATE——— 50 wn a | \ | a areeae | Lee A bh ie Tika TAT MURS BSN ACN LS a a a a a an aa : daail Hine —130 Beginning segment of Transect #31 acoustic survey of 11 November 1993; profile runs east to west nd Se ae EAH Hu i 1 Ni " Fa is Ll [ir Ny a bi A : He |i | : ul SST DEPTH IN FEET a's : Hi resin st Bt ty “3 Ha Pr DC (EL pre, eae he pte UV ee Te POUR MLSS nue Ee ae eee oes a RECT iS CAL recat pa | t > z ee ae eINERI: 2 Una Me sid B pe bstAcy TN fin! « End segment of Transect #31 acoustic survey of 11 November 1993; profile runs east to west ‘ill ate Aj i | d bee s* < LE | rare A feu v ay ny ° PMT RTE ae O TERE Sa ae es 4 = EEE TE Ce. Bea ELV ae [eral roe oud Aa ibe WM, re pers eter tl " acti etotememtm ees dont say] Saez] pF eT eae rn a ermal Emre [rans eS esa fae ss I No 7 A | peermme m uca a : SS a —— ||| i call i i st i Ml tee | \ | - Hi &: a Na) em all C Mi . mer]. F i il il. ul Ls ls Al i ill il il wi oc ti i 23 Le Tis al 3 | 1 M Tee ey il | ge PTY | |: a ln | — ie i | | en ae ‘il still (e SSE a We — CALIBRATE Transect #32 acoustic survey of 11 November 1993; profile runs west to east Fe ann es a i & : : Till ee ii al fib LAG °F rf rs i | Feta => Pe A Pe eee Fe ee eo =a a] OS ery | [asl ieee =e > = oe SSeS Soy PEE ee pene Ee SO Bo 5 5 | Beginning segment of Transect #33 acoustic survey of 11 November 1993; profile runs east to west Lohse eo oN ii il hes li, 2 3 a lihitisss Ae ‘in = ‘ih a= a I 2 a. i 5 i er ee SS ea a SUNOS SE AL re EN End segment of Transect #33 acoustic survey of 11 November 1993; profile runs east to west ' q . “te Ao i5 saya. Ee ij si T1757 " 4 il ahd [delat Pel de Teese at eee : Tie ee TH ee FE df a i i i t all e -:: ae q i i de : i ll Let : fe & 4 - see & lie tai Z ae : | eee i : a P.. a td d a 4 al : Hal ij Bos dill a a | dl th i pee 4 iNene CBM SE CK MY ST i A = : ) AL HT E nd AP OA) CR BRE Ai io,. Fi WEE Sy I feet ete OS WFR TA AAD EY Bh a 2 tk) BBL, — CALIBRATE — CS Ro ES aa Sr BI ey ire ty hy SOY Heke OTC da A BP SLA EN | CAD PLA nee ia Be inl edad A) E ied. a! CAIN So AAD ase Prevents = i : | Bier = ees ange a ae ah . NO ~.° DEPTH IN FEET. - 150 — Le 4. CY BATS ok. eed Ma eLibWrni LG Be prea ent i BOS LEY Beers 0] UE OA) PLU Ga Ee) ES a | ey Deri — ecient .= a Foon emer se Pear rn t. C2 IFS A AS il CALIGRATE: Beginning segment of Transect #34 acoustic survey of 15 November 1993; profile runs east to west Mes = | es aie Pp. 2 o a i : td iP e -F sail Le a8 hij Raps tl ie i “ ih ‘ s r — CALIBRAT; eee Par ere ware yy Syl Oe a ae . ees cat ~ ’ = r er : fF wie | - : al a ts FS all TT = ry {| E | ti E : 2 Hh MN Tt | i ‘4 ease | PET; iE et Me Se ET 3 =: 7 End segment of Transect #34 acoustic survey of 15 November 1993; profile runs east to west (7 RT OL 8 SSIOSUE D/A BLES SULA CATO sl i Ee ‘| " LET 8 e Tea : fa ; ae Fh aed oj MS WC NE Haasan Te 3 bal ae ie: || |} ——*r | ae rt A— —o ry V7 TN] TE AWEUE Wa Bi’ %, i 3 ir i" ue td ‘y | F ; ‘ 5 in 2 ? ie 4 ae fs a -3- ’ : e Sr A | Pitter to = : 2 fs : = 3 : . aes on tart s eae je £5 = “ =: - 4 7 7 Mh 7 : 3 < = 0 PRIM) WT. OF. A es te Load i hy Ve TN Be ST Bon ASB RAD AT, HR Pie Ae rene airy | ! aa a a 7 Res PA EXO al Bs DSTI TOO a Bit ef i Me as ui le ‘t Nat “SITU VMK di PAY ae z ‘AULA EH Rok at Patel P| BARRE ERROR Baan Sa an Feu y. wv Ee ia Be BS Se ee ee a — a AE Ee Pe ome a Ts So yy msn ens kena 3 irs a RU aa foe de ee Cd : are) rs Zann ve sats oeh eal tad Pe a ee Te Oa Ener Tie weer ey ‘ at vs 1 Prt ah : PG. : Hs + idl Dad Caitlin eet WY? rn WE ater V:, lhe ; °° OEPTH IN FEET 3.) >>> Naan Lo ae eT TT FY ere tee ene ae Baa? Biter 2 ed I EIS dig i rae Ch” ed y agi Sy [ve P py ot A rere | r SAM at] wish Bae iA SUEDE ELE) BB “fT PEARS r HY! if OT ee ey [i RPE es 2am a a RY al Fai et SOy———_ USA te a — ASS i aay [igi eee Sa [soe tier eel See) ——wese aa aE a yy Ty — ee — et | ae ——— u SST CD ls 3 Se ee Ra Aare ee 3 Dt rs | eh « G i 4 The PTS NSERISS os ie LS FPPC Ld BY el a I ltt : °. i baal bs | [be Ss inc. © [a 4 4 £ ail | ste: ‘ “, sas ctor = Tay ral Lae Bek IUAVEYS, =F End segment of Transect #35 acoustic survey of 15 November 1993; profile runs west to east ‘4g nage Bees ee a a z an | a all 1 MIE LE TTA hh pee eee ae a eee Beare a rey aaa) =a) [Ree ea See] aera Rea ret al red Pee 4 am SS Sar SS | = —= > a == sa SS is a “33 & a Q — = akagee | a ae a 1 : te AE a oe ces ~q gaz4 rp a a e oF et ual | LG ME a HTT uv Er aM iil 4 j (ee all é s Bed sf | Wi : a see toramara tl ae eta vat Nee ott i } EI Foams w. Pay . E 5 = Fey ES : ae le S pes need eet aeet ESOS | Ty any Oper MOBI T WE A 7 BB ap aes pert a MNT RAID AEE a ee 2 SUC EN ORY Bi es seemed eee oad ohio wig Manas Ea = =p i, TI aN Srecmeres | mt aa) Seg SSS Se U i: SOT. OLAS. "ee Ww oe wer ae eee F Ay Nt 14 TO) a RPT ee CARR a 9 CALIBRATE a a a SO Middle segment of Transect #37 acoustic survey of 15 November 1993; profile runs west to east "DEPTH IN FEET) =". Wace al 34 Boge : eat Ch adnan eens V.WrTy For 7 www? 4 ve 82 Od i bb. ce Sl a MALE AAA 1 TE A OA A 1S RL Litt DS GS De SB TP Ta Saheb de ae “4 ay camera WwW YP Oe? UL YT Tel: inde BBY 63 nthe A Bh tk ek A 1 ee Paine A MB cle de tell Ducts i | Fe ee Or iy Wee ey were | Sh hie seat eel Soe am ayy 2 fy oar ee Cee POP ee er cee wr TR etre if 3 AaveT PY einem tae nae niet 4 ate WE AST POT WT. es Tb RSI es BS NY i Sls Hea wy ep | bes Pe LOPE TA Sige | 1 BYU OP Sd ORCUTT tte Rita amet Wen rear amy kd Pie: St Ose EIA ED. 4 wil nest pl "ATA BERD 28S atl Ta ESM A Ob A SPP Ea Pie Pad & tal) AU abe th Te) RAP ER DRAPE V IN ORTON ET TE 1D PEE BY eo pay UNE AS ST Rae AD Co LY MUM CTS §! TO I ic Fare. 28 CRSA 0 2 LB A A SC OT BS A ectereenaitieay| Sse] Rare] [mre teoa| Sera =a] ee =e SS=— =e Saas] ees] aes ae =e] eae | | Sa] areas) Se [7 7 ala A AeA AL AAA Ria? Wits. FUW Wi! WANE TP BD “Bag WAIN Talked Bla Wb RE DPN old PAG aly 21 a iE Mil AM DG; a RanaTunec RUB |X Yl Eh} eT (Sema a ea =a] Sasa == eal | ae ==] | Sea] SS za] Sa =a LeU Seen {eve Sy aS [2a Ad Fae) [Epona are [ Sakae Ser —eEae S| wer rr AW. WIP. i IU ETT Aik ke BES BP 4 : frod E ot Reveal eae F oe * f S Th 5 s U.S APU. rer. italia a , [oe fF dy. SALA ards a DED BD bald Far ka ATT UN PBN EV I AV A TEE RD AND OA AA, VR ET CALIBRATE. CALIBRATE ALIBRATE: profile runs west to east . uy End segment of Transect #37 acoustic survey of 15 November 1993 SS OEPTH IN FEET Na GC29911 © -- siltex esr Bi ad i dit Bs ths dads MO de Bins ion A o . ra . Puewmay v vy y © in fla, rae ea a 5 aah aera 9S sii ‘ Teg BUT yg ie | TEEN OF TET SF OTL te * Daa a OR ae a | AE Nd | Et eae) SARE CU TAINS MLNS AP Al: UTR . 482. Bo ah t' hk o ee eee SS ee Ee en Eel Ta oe ao tl Rep a ta AoA i be SE AX a 4 ‘s tas: q iS 6 {eihid. i P ( i LY PU ~_—_—— CALIBRATE a0 a eee A Ue ak ye TT LOU ake oe apa aa DL YAW VEST ‘2 A 2d LP i {eee ere ed So. w - < (4 LS a < | Ss Sn ees : SU a LET | WZ * 4 as x + / ALIBRATE—————1 50: oe OP call a ey First of 4 segments for Transect #38 acoustic survey of 15 November 1993; profile runs east to west no ms j i ‘ = p / 60 : if ey a rw ee wee ar Wey oy oe ee . "Petes ab ad. aE pies 200———— CALIBRATE——- 50: EEE ae] aes Eee] See Ree] Sea ae eee) a ee Ree) ee See a] ey ———— CALIBRATE 0: eS oom profile runs east to west Second of 4 segments for Transect #38 acoustic survey of 15 November 1993 i 3 > | ee a ani il pau a: coe ee g > He a i aT | | CALIBRATE———— 50 —_ a =e Sareea Saeed) ae SUG iG Ee =a Sa el me }————} ————— eee | == (arnt Se Sra Geer] ear aaa iY, are Die py en et ar Uy ede Bb he | Y BATES pier al tte. . 6 eee Se] izes eR See] ae | (Eee SS {eae [aera | [A oe A oe aA a thesle be fea AM Wail ake de ae el = q wi ESC A RA A IC A Oa Ne ST BOW DD Bd ld A AO RD Vad AT i ST) I OA |B DAL RARE USA Clk le BT BAT LE PA 2° LR be ta Mth PARES] £41 Ca LD ad BOT: Bd, REE: CALIBRATE vSUL Mad cl ONMROD A ACTF VAN Tc 6. RAL PUR Ot ee paet ae AG cel MODS BL UAT WE TR AD PAR VA ERD: BT PAS BAIS ‘ nk To. 1) Ach SP NG RT Ko BUR.) 5 0 a Ore id dent 6 dal Mook Ro LBW a] BU) ESL] SSeS iSss SaaS saree} ae) eee ea aaa =a} Ee Vari w mee) Ws WAT PROT A, NY hl Sk | TG a LL , 78. VIS CY 2 COLES 8 athe ae iesae Mosport : | : : sti Bb Gi 181, PLM 0.2, Ge REL, & B. PSHM Be TS Ue. Od BSS PR ae ree REN SHEE EP Uti POW ht es hoe hw FR ISSR UE? UT YP EPPA AAT Ct te a Pp eat Te T: a ees AT req yman Me OE: Le QTE ERIE EB ef pale Third of 4 segments for Transect #38 acoustic survey of 15 November 1993; profile runs east to west CALIBRATE——— Ddiiseabisanls aN i. i Mt a all rier >| ee 1 Gi iS Se ye =2 15 Ae Fourth of 4 segments for Transect #38 acoustic survey of 15 November 1993; profile runs east to west | z aie bh | = R Abs se = ) i i i t

vale an tae Lye Yat Gear na a oeeees Fl aS aaar aa =a Eee) ESS) CPR PP anvruvrns Wwwrurvy wrww CHK toa obit @ Ay uy = ORT Bee ees cp ey ey E a7, 3 5 CE ACU GT. CTY 2 ALAR SO TE ree Pare We Pha Laas ay tabead Vara ia' td 0 UAE SD |. Oe 0 Ev ah eee] [ecm an a 2 aa ae) Sway re ee {Fass OCR FeO EE Sa] pa Ss revwry AGS vente re) ra - veel oy Abo lg A a NG MS 4 y Sy Te Lhe ee ay aro] eae) SSS == aN Saas) az aaa} eae Ea Saas) [eae ne | Re wy we veri ee eer er ae ne be dk es tale 0 ORO PARTITE REA rate LON: AO VS a1 ipa BPRS, THN 200——— CALIBRATE 50 i H zea es 4ee = : Re “4 EA SNS : i Seer hs e Liew Fe | a Bs 3 Ene pe 3 SES [—] E es wd Hees L cM EL i alll a dN SCY Ls C94 WUE ME AEA oh MER 1 MATT UTSOTIEE UNTT WTS TAKE ESE LS Peet AVE HE? ee ee Ve a WF! "Tm MRL CMEY AL A STU ALO EV CTS SRD ease ay SSS ea Sans Sse = SSsaeeg —— aa i A ———a SS =e $2 Died WEA Bey 2 GT Al | | THRs Sree ivy e wey : =m i 4:3 Cat Bs: Shed Eee | iat het | teers We ass za HEME BRET 0A REAN BLOTS UCa SALT AGAMA re Third of 5 segments for Transect #39 acoustic survey of 15 November 1993; profile runs west to east xu * SSaeEL ARN bse i PoP ee VT: oot ara AED WCE AN OBE TALS BA TEES Oh A Sea, BS ABS MC|] eee] EE SSeS ae ea SEES SS a [See eee | ne ea See ee] Ear, ra ml mew. D Fd Nee VT aT are ‘aii BO BRE AS Brad a BEAL BS? A. ISTE Miia EM Ea pS ewe Saeed Say (eee) ae ee See eae] Sra aaa | eee aes See] ae eee] ae) ey See) Se Sa] ae Se] SP NTE PE OTE ALE CE (LORS GEL a STCS THETE NG BRAG Oo? ORR EE STDs PM WSL NTL" PF LNA Lda eA TET } Dat (CSU ND Peers GE Peters Saas] eT See Eee eee (Ea eee eT Sea] eT aw “VO CWAERATIE, (Wa © “ DEPTH IN FEET ~ ‘ a a ba ge SET aA 4 S) Ae ) an Eee Peg ‘ ai 4 BAS Bee . Be ‘* 4 teal ~ 78 YY #4 a sguse 2 2 eH ae cl ea i‘ it il Hebe eT te xa | oy fag . Pi ra ae see sO AES woe I = 2 af " Br z | lige E a eng fal I ager EE] PEON RES) BESS SSe) SE] aa SSS aS) SaaS , eae) SaaS] Saree hed |e a aE | eee ere] RS) SS aaa] eee] Pe) eee RSS| =| ea ohn 50 Lp 4 Fourth of 5 segments for Transect #39 acoustic survey of 15 November 1993; profile runs west to east ee aT || a : 4 it 3 ae ar A (2 NS ‘GET a aT wen Oy ers A: aL =a Fo Sea feyeeae sl Bb P. € F. b bt iz F. 4 b. be ae 7a i Bee ew Be Baan Cece is ra aa oes hi DR TO FA Va TT A Ee, AY Sts P u ta ae x 3 ; ry ira A A Brat we ta as PO TANT FRAO fC OL PR te i A ‘ s ES, mi i EECA PTA {Fee ta) e La a ved : =e still ° Hi Se ze 100 ————CALIGRATE: CALIBRATE ee a : af | ie Lue kyr yttnt viva dey an | Fifth of 5 segments for Transect #39 acoustic survey of 15 November 1993; profile runs west to east ——— UK invoweaad fe 0S: Ci PAN i Pe Pee ars | OO? A ihre BSit Z Reet a3 ca 2 : E = i3 3 CALIBRATE— il Beginning segment of Transect #40 acoustic survey of 16 November 1993; profile runs east to west Reg) ll HE : it sa “il q e . ae! | | ‘| FH — FF irate CATO CBS BR pe od FRAY OUTTA Baetesre be QVM WEL OCD Cot Cen RAS aT ana EE LAA MBA Ta A BA TEC HE oe} } °S. a a 3 ‘ pate! p 1.3 paiencs as 7 AA, ST Os “ust! WERE] AS ESSERE ll TEE MO ALA, RA } + det = —— CALIBRATE——=--—1 60— Ree ee ee Cee SBA MATE Tbs ved a7 i SE a WaLUSSRMSd ANOS sues, DE fete | rtf} sae ECAH OT SPTiga | [_————+ BERS BIN “J. FR Pale Al oe ee FH CDE KARR PALA I TEE T _—— SPREE WET WET Bl : 4 Pi PENSE SDD WEEE RE Ted Ie eT eae —— ee pe a eet —— ae a5 ed & ce re -——t z D x GEG DG pO End segment of Transect #40 acoustic survey of 16 November 1993; profile runs east to west “DEPTH IN FEET) e | at ral th i cr lin Ti Ul ! i hy ee f. il ill ll i Lil - i SAUERAIE oe x as Beginning segment of Transect #41 acoustic survey of 16 November 1993; profile runs west to east ts cmbaeeal desnebee pecrulrd : re ORG S27 A A RT TI. HBT f WARSG ET LE = “1a totuarha diteal a if Raa] | Rae eS =e PAGS LA LECT AIO is IR Bd RICO BTS ADELE 11 c0 Yall GL AMIR I WD 749s Load LAST Bch Ty ity = ors Fu ns aah CUO “= yk MOU TATA aha? 1 AucinaikA ADMIN Uh AUTRES aan ROT EA | il . his ni ih il ii ins Shee ak Ns | " : modi it 7 r FODUIRARL A EA c) 9° A (= iF SS EI. {-} |. | | Be ecRMFY MLS | ! | | | End segment of Transect #41 acoustic survey of 16 November 1993; profile runs west to east 0.8 SLU TA ee SWVRPTAIR T1401 LD BTS ME wan’: IAL” imi = | Resse iia | iil ) fi A seer a3 MA E = Ese = za profile runs east to west . +) g segment of Transect #42 acoustic survey of 16 November 1993 innin Beg ae] * “SAAS SPL 8 ir OAD POT LAUT 27d) (OCCT HD De Ro ee ar paral CAMEL A SL oe figs MOMSEN Ke AD SPB aR UL wa " 7 ee <4 C te * Nha GTM BG fi a uu TNL 2 r anu EF ‘il ul is sae EF f i ff ie all HN iii | ' H 2 =a < o Al i val End segment of Transect #42 acoustic survey of 16 November 1993; profile runs east to west 50—— U L ‘Llo ° Bim “sic | = 7 "oe uli mn ‘ Wii {i i “fe i= s w on aa 2 i Beets a4 =5g is 3] : ie fe | ie : 3 ee | q es. | 14g 5 18, +4 1 1% bo | \ ! ia J | i a a G a. ! 26S 4. R / ae ( | ap m RrrS | eB ee : , 2 roll i [4 j (5) | H | | | | | : | ° ' i : | : | We: z i = a \= 5 3 2 | | y | ta” Ww uw E | =x: ( Re aw Qo ARR (pao eatre gi ACT FAASHIRT 7 CETARISNA UE pels tii? 150 ears] Saree] Ea ee] SS ae Mala RECS. Al e s Lyd a1 SEIN we iy bale “3 pei - it0————_CALIBRATE profile runs west to east segment of Transect #43 acoustic survey of 16 November 1993 inning Beg a AUG GAEL a BRI it Qi WInLmMe (Ws oN [*) Te Bld wl ah AVY Waly pepe Woe ee SNe B: : be E ; : Tid Ve I iy tATE-———] 50 — —CALIBR End segment of Transect #43 acoustic survey of 16 November 1993; profile runs west to east roo" onorrse USA . ‘ sq . atte ietererr — re No. GC-29011 . oe “ DEPTH IN FEET fe srcerrere eT Ea pe |) Pa (eee w 7 i a 3 [?] bc | a a Fi ag # | 3 t B te Fi 5 I a a YS BUSSE TRG i - nt =] hy INN tt ss 4 : =88 a gecaa AE ee thai es VSB ESE APPEL LE PRAT Tes ATA TE Rd OPER TS sae st mt qj zs fae 7 \ id le. i bl Lt : i il Hi CALIBRATE——— : ; H ' : I i ll LE il au a 245 4 : » H ° I EEO EOD Beginning segment of Transect #44 acoustic survey of 16 November 1993; profile runs east to west DS eo peeeeeeeo- pees eeeen) seee8 aM i il iN SH i i 2S 5 vl Ul Ff ll i | a 4 Le + to mci 3 | pec; a ill aeaa - si 1 : a , y | : i e FRC ATH TL Such ee ae pier i. isis nbibocadt ea treme All ll nn il Mh | | Hf pegee 5 Hh! AN il Re fl : i: nee SRS Mh a i C ie i hy i Bhs a a lh aa Se Al Be. s3ra083 / ae ALLL Ae |] ee are Fi ih i parretee ce tl ed UI ae ow | oes Eau iil a Dina lh BMI et lib BANE * TELTTTTTT FST Se || HH End segment of Transect #44 acoustic survey of 16 November 1993; profile runs east to west = Tm Eee ee) Seal eae | aaa Sameera sy [Fae eee S| t ie | Saas away (cee | [ere ena a Seas fiae areca ue a LAE oa ee ee ee ee Peale cst oral ~. SE I I A nn a ' a it ‘ed Sash chive ksh! VV Lei ttt Beginning segment of Transect #46 acoustic survey of 16 November 1993; profile runs west to east - 200 ——— CALIBRATE: eee] SSS] [Sen ee Eze A ohn at presets Pe 7 { vil ofA, hs wetland Lah b dle bs EEN CAC: © Ti bei Ms Tad: Als, Vile ‘Mh ed L Bad UL imi tal wa ck UB rota] ; Se | =a ee aed ———aey ——— a] al a al SSS i kA i a BAS Wares lana TUMUIAPEY osc at WE aU 2, WTA Mio, (ULB oe maw Pima aL Wy ee RS li Mh | ee ih Vivant" feet | 2 ell ae Se SPE Car tw te [ieee oe OT ee ar “ : i = 4 a | .) CALIBRAT: ne {iN ih A Vitiy, Middle segment of Transect #46 acoustic survey of 16 November 1993; profile runs west to east ee rill ll be PNT hei ay COOP TITS REVERE LG Rees PUR APUG COME Te TOMO MEL BC VE PAM A SAD STOR BSL LAMA RMU DD Syn: srernve = TOL) 21 GT alube TR TM: BU UU JU LbiAUKLL/31 0 kM BORE BRAMALL UU RY ULAR LLL, LAR QS t I A CUPRPSEY Tre Vt ETE TTT TE ME CALIBRATE=-------50 BEG MTU MTAL ANIC, i pede fot dt Ane a ible Bie ad edt Lies ba bed on A, S VOU EA Cee Vind Asus: iL Lite Whe WLM cid bag [Mach Pape 30 13 1§ B 1 BR FNIY ft Wa I RAND AMES VM il +———110 epi oa RATE profile runs west to east | End segment of Transect #46 acoustic survey of 16 November 1993 | TM lt : 1 A in ial CAUBRATE————15 0———_ DEPIHINFFEY iN. i eta a uae N = Lae iy eae a {arr armeer Dias ee Pitta Py dee ee —— Pa Ls jp Reena Ecard ee ——— SS aaa REE 700 STAN TRB SUT ATE, Gal dik. SE Ene (ES Cee aT 1 aaaceaaaal SAS) SS ena [_ += ; a 5h ei Wes aaa : rots shibdeade th olan 11 Foals Heoapacrete a a va owe AD ARE CEAL SEPIA 2 TOOL di Bi PLLA SES: RUTEANT eR "AT EA TAAA A Ho AIAG Tesh eM BU ATE 4: ua) ALS: AN ite Ba —— PE a ee RISES ORE ee pa pea Sia) Soe Beginning segment of Transect #47 acoustic survey of 18 November 1993; profile runs west to east eee : fe aa is 2 aus JS a i , ql - a5 s i : : 2 5 Sols 5 - 5a ee | t ne =a | tt i f MLL ‘CALIBRATE TALIBRATE————-¥ 50 End segment of Transect #47 acoustic survey of 18 November 1993; profile runs west to east om AN nanan —— CALIBRATE Saat PLES MTORR 2r iSsep tol bls hiee agg J p, e L CALIBRATE POP YG ppc er eer cP perryre Tee Pn es fT ari a Pato Ag st LEH Anes El bil SA PCUMIRIGWTH A PAA ATR HSA ALL rele wit et ae TTR Tea CTR ETH vi, y UB AA te (Ren RL = do APB RA D BIR V OPUS suite RIFF Ae. STNAM bal tt UE WAR SRA 1y PALA DANK Y CL Aad te 2 ih BLAAV BA) Capa feplicrrmmpe ue [Rais ieee rere esl oes ens UE wig deste hai gh oo athe taaearaae ache MENT WA yy LUE Pl eee Sis Beginning segment of Transect #48 acoustic survey of 18 November 1993; profile runs east to west ISOM O} JSB9 SuNI BIJOId 'EG G6] JOQUISAON gy] JO AoaIns oNSNOoR gp JOoSURI], JO JUDUITeS SIPPIWy aa) ae aoa oes —= 0S —————3 {vualnvo: EY BAN 7 110 71'3) FUEL AN ‘whe ad ! | alte oad PO BUUIIPEAA! Heh a p Usa ers, Tatil EDR Briel eee im MARTE VRS HUTS man vuuer, shat ea ¢- ht Wiebe Tab abbas: aT ae betdicld 1. ane VRB eh Paar e Ni eh ites Eble yee Beatie ey iki SS OEATS AGA YE Ree ead tea ie ni oi talilen ai: seal Aucarvsins 1334 NI etd3a Sater : = 5) “ONI'aAaAuNG nva30 i 4 : - . rr ees etic ncecano 008 2 ie ee te .. oS TESS JSAM 0} Jed suNI aIIJOId {¢EG6] JOqUIDAON BT JO AdAINS ONsNooR gp# JOoSUBIL, JO quowlgas pug ALTA ETT be Rictuneee tert tet oi did 1 1 aS Cail fy uy ane i salt 2 aarre 1 raeewerers a eaereea we TTT Ps Saks ped Sas LT RE ate eh Be rarer UR more R ETE Re td hi AMIR AAEM F Sanpete FL EE WM besaueetut Geass uate saith eet att pie ON pla TALE eee San oeRINt fa Sioiauieay piaystereirid UasaalatL rrr PERS S vig ape laa neh nae A Aoi | Bern artes Or Ae HI Lait TT oie en al PUPP ON TAL Ht? Feud Dene cL Pa) ta BL adh tees nal ail ae Sp | fe") ? eee ee Pid Th. i eee fe Sh oH | thd i: eg pom z : See : -——--4 ON as erro Us aE Field | ace Dae | See ees A oe ae CH evel im eid aioe Veit Qeictt Pay SY een bapbe Perak ae aay S| ve FEO ei LOGOS © on aasauns 1S 0} JSAM sUNI aTOId {¢66] JAQUIOAON gy] JO Aoains oNsnooe Gp# JOeSUeI], JO JUSWdas ‘Suruurseg ) lI 4 op a SS SSS —- =e} aS i : ioae eee eee eee ed eee os [_— | ————} —_ as eS FA = SSS SS ee SST a une Boa pk ead HAPS) Ht EAM COAL ER STORIE UD ‘ignaias zZ had ODA Ber HPs BRM GAMUT gm WAN LEDL | A UTE LEN UTE Pa te eres nic LSA VES NS. ee ee Mes BAAN TL PG AP LM So i HA ng bs Hn alata on Fay ibn! Shi bid Bae cs seeiak buss a tr alte SRA ulles Tab hs bee foe eee PIAS het clas Poa care ae i ae tiny: a @) GNI SAS AGAR NaS Oe Se Cee tee aen eis wh Benen se ae os eee eee ne pees om enenn enceeman anene as. Ista 0} Isom suNI aIYOId ‘¢66] JOQUIOAON gI JO A2AINS oNSNOde Gy# JOOSURIL, JO JUOUIZES S[PPIW, ; TAT SSS) See] vy aa eae) f Se Lae] : ieee Ears] T4 ! ——0S1 31VYBI1VI——— gg - = S1LvuENnvo——— gg : Bar a ET AW =o9 ee TEE Raa, “4 Ne | AMM 4 RTA STEPPER VOPR IP 7 AE BL {DWPs HET OF PLL) (Ow LH EE MRILD ) bas SOUR (A RLS TASER CECT CTS BON LF dS ! lt 4 BUNDY ENT WL GET A genre —— OL ! : Ries Bret oe eal eee Beth 97 Ae i ae ees vs Be BR i NACE ih ache Ma La | Dial nh Peete eg etwin {the tamed REE A Pe aL ase eben eat eee BANDAS EAST sic fod SUP ENR. 4945 NU braIC \s9 0} sam suns ayoid ‘E661 JoqUIGAON BI JO AeAIns oNSNOoe GyF JoSURIL JO JoUIdas pug JLVEBHYO—4+— gn aos as PRU a Ya poppe CIRO SSG PAs A A A Tare i ih Uda SCS [pcr doe ee 1 SB PT PS OL | EE TTT PE GA Fury ae ee Ue SPL GT) ee le ‘thw Re eon PUR at ORG ECR TAI er Tete (Bee at. et JSOmM 0} ska SUNI a]IJOId {¢66] JOQUIOAON g] JO AoaiIns oNsnooe OCH JOeSURI], JO JUOWdas SuIUUIdog alvysilvd : g Aeese teak ae dh) ie Bis (022 ET? BREE ELM Cy MRA TI RE RRC ad aagtane Set bartewes Eo ghiowan gl jeo cig ier bgt eve preg ibe coves bras at ors Ey arg oo 288 8 CHT . ore ye Wen Uae ySam 0} Ska SUNI aYJOId {¢E66] IAQqUIOAON QI JO AeAINS ONsNOoR OCH JOoSURIL, JO JUOUIdes pug aLVYsIVI——— Q +—— 3 rvus!1vo ——-- 09 : Ba | HE [ | 1 Stein ct = SaeSss a oat Beng “1K s a a i hh AT NA gO ll pees Ot a a aT ng Kile Tc | EL SY A P| at ' Fig dared Fern erence me JOE Na GL Bon Nee Mate AoE AL INN ASTIN De at uw us o 2 “ o ° L ¢é z= DEPT FEET WH sh Hert uM] beh PSE =o Emer = CALIBRATE q U va t MEA ATEN Beginning segment of Transect #53 acoustic survey of 18 November 1993; profile runs west to east 1SB9 0} sam suNI apyoId ‘¢66] JEqUIOAON gI JO Aeains onsnose Ec JoesUBIL, JO JUoWIdeS pug Af " f cart | ‘ ' : 1 jee i ee ( QI ; a] ‘oe it Ba et Tren sa -- OCEAN SURVEYS, INC. ©) 0 2 7 i Zo if SEE 47 ara 3 g AH abe 1b = H itis ise aE ue I “Ub dai libs (faecne ee 6 vA FRG A We id ae i] pony 1 Arey — 4 . () oe ven ttezetees Oleeat? —_—— SAAGL 4 13 AYP ipo AUB Ral. rite a eee recat Se Ee: ace un va aL seat am SS SIceP sale cant etc Laphtitnsae TRL HP Mi Laie dt. eas gaa at ie eds f H geese Beginning segment of Transect #54 acoustic survey of 18 November 1993; profile runs east to west oY adv 05 TU Py nk BRS EEOC) BAPE Ses ser Ta ae) i Ye bes : r ase eT 4 + ss i. ui i a | ee ra i mS “di eee ae a il = i Hs il 4 | Se | le = = Ue es bs {ee | i i | vou 71 ce Pape = SSS ESS fj Sao ~ (ete : Eee 2 aul cae 3 ag ROO WROU EN ae Belg oe safety “Nd O6-2e8 11! ary ga tn’ “DEPTH IN-FEET cae End segment of Transect #54 acoustic survey of 18 November 1993; profile runs east to west ! ol Dt a8 Weg 7 7 4 o- bs oe i] y i E rT) = = 9 —. 2 ” ele z = Hato a, i - : ET 2 eee 2 “4 1 aa 7. } F Z . 13 oases) P ) +. -2 38 m w re = = yi ie i Hh HL a ' t * Spanien Se Paden! [jee | eT: oe aE wer . Uysal acal a 1 Wer a at rae Oe Heese FIO NOH i re yeni. tretua ‘i ATR rau 9 [S| i eM ee b-LS Rah AAAI Py eo , OCEAN SURVEYS, INC. ©) TST gece nan UAC He ale eae j tos . wale} tl Pl ie Beginning segment of Transect #55 acoustic survey of 18 November 1993; profile runs west to east w = < « 2 a < 15) ij iis i = f al ee “ “ES — - | DEPTH IN-FEET.< 2 1) “Mol Gcians ‘ Bite ee SOM apa End segment of Transect #55 acoustic survey of 18 November 1993; profile runs west to east MO GOON Fe tt eg SV DEPTH AN FEET wees roe HUH il i g al UT ae 200 =. CALIBRATE 5). + — CALIBRATE: Beginning segment of Transect #56 acoustic survey of 18 November 1993; profile runs east to west JSOM O} JSBO SUNT a[IJoId ‘¢GG] JOQUISAON g] JO Aaains oNsnooe OCH JOeSURI], JO JUOUISES pug =a Saree | SSeS aay =e =a [eens eae Sere EaeTaRE, Sas] ieaeieeer | a OR —— = seae] ewe Wi, ake ai E Eee p | —— Ort Sa) a i yaaa metas ene (ERE os ee ey cases zr es Mit Sn Re ee] SE ea] PEST may arity mais THAAD at ea De EEO EES ee oan A SS ae ENE] DET TCE MEE A Ee) a) eS RTT RTCA A NS a SS See Fee See aT HAAG. 11092 ST RA eS See] RE eg EIST PRU AAMT, (VCASH BR A SS SS SS auee he ahh ey reo neon in eal See] — pe SH MEAT ALTONA Ca ARON MB (1 LIP LD B =, MBPT CALE A RNA UES VIO TRCCVTB TUE URGE ete a —— AAR TAN DARREL ES CAME PEWS 35111, STEYR ON NUS) RET | ; FMC RRA ho i |p uw" AGUALLIUOATLAI PUTA LAGS WT" DERE, aca (RT ay | 7 |, ES EE EE 3 1 Jobe hy] a: ARREST! (PLEEEAITEROGAR Ep DAMA" AR ERD Eee SIA Ad eed ae By's U's L ee edly ap ithe See PSE ws eel fe = a oy patsy Emmis Games’? AF as Sage ie ; z - 7 = = 28 MPAs ew CE: fi Tt Mr IP tet: the Ts iit- pega His eae He ey Bhindi Ai mene ian 1] hg cae sit mi 1 0 —— @-on1 wae nwa00 Heal aati die it a Se HON APPENDIX II CTD PROFILES 5 p : 0 ° 98 10 11 12 13 14 rature (C 9 10 11 12 13 14 erature (C 98 10 11 12 13 14 eee meee 98 10 11 12 13 14 erature (C C!S Se ee ar kOe oe ac acm 10 11 #12 13 14 £24 erature (C 14 11. #12 «#13 erature (C ww me ee mee 10 11 #12 13 erature (C 10 11 12 13 14 24 14 1112 #13 «#14 9 10 11 12 13 14 16 #18 20 22 24 erature (C 24 eee meee meee 9 10 11 12 13 14 24 24 rature (C 16 #18 20 2 24 5 0 0 : 8 10 11 12 13 14 Temperature (C 9 10 11 12 13 14 Temperature (C 9 10 11 12 13 14 erature (C 15 9 24 9 Lemp erature (C 24 24 Temperature (C 24 do0O000 R000 bs Ny hit M, i