xvEPA United States Environmental Protection Agency Office of (WH-556F) EPA 503/9-90/002 December 1989 Surveillance And Enforcement Of Sewage-Sludge Dumping Report To Congress BASE STATION Governors Is., NY RELAY STATION Sandy Hook, NJ Printed on Recycled Paper ------- REPORT TO CONGRESS on Surveillance and Enforcement of Sewage Sludge Dumping July 14,1988, to March 31,1989 ------- EXECUTIVE SUMMARY This Report to Congress presents the progress of the United States Coast Guard and the United States Environmental Protec- tion Agency (EPA) in the use of the Ocean Dumping Surveillance System (ODSS). The ODSS is the electronic surveillance system used to track barges that transport sewage sludge to the Deep- water Municipal Sludge Dump Site, commonly known as the 106- Mile Site. This report was prepared by EPA in consultation with the United States Coast Guard as required by Section 1004 of the Ocean Dumping Ban Act (ODBA) of 1988, which amends the Marine Protection, Research, and Sanctuaries Act of 1972 (MPRSA, PL 92-532). The ODBA requires EPA, in consultation with the Coast Guard, to report to Congress on the progress of the electronic surveillance system and other means to monitor and prevent illegal dumping of sewage sludge. This report covers the performance of the ODSS between July 14, 1988, and March 31, 1989. These dates are the effective date of ODSS operation, when enforcement began, and a cutoff date selected in order to analyze the ODSS data and comply with the legislative report requirement. The report summarizes EPA's related enforcement activities during this same period, and discusses future needs for installing and fabricating additional ODSS units and upgrading or modifying the system. Historically, surveillance of ocean dumping operations has been carried out, to a limited extent, by shipriders, who are inde- pendent observers (usually Coast Guard personnel) that remain on board the towing vessel or self-propelled vessel for the dura- tion of the dump mission. Airplane overflights and observations from nearby vessels were also used on occasion, but were found to be impractical and of limited value. All of these surveillance activities created a drain on Coast Guard resources and have been almost entirely phased out over the years. In the early 1970s, the Coast Guard conducted research into the development of an Ocean Dumping Monitoring System. This system would have utilized a recording device to record vessel data on tape. However, this system was not adopted because collecting the tapes from the vessels and processing the data would have been manpower intensive. In 1984 the Coast Guard began research and development of the ODSS, using $500,000 in ------- funds allocated by Congress for this purpose. The ODSS was designed to provide full real-time coverage of the entire 12-Mile Site operational area. Data on each vessel's status would be almost instantaneously telemetered via radio signals from the vessel's "black box" to the Coast Guard base station on Gover- nors Island, New York. If a violation occurred anywhere in the operational area, the Coast Guard would be almost instantly alerted and could contact the vessel via VHF-FM radio. After the 12-Mile Site was closed and all vessels carrying sewage sludge were required to dump at the 106-Mile Site, the size of the operational area that the Coast Guard was required to monitor increased more than 10-fold. The Coast Guard had to decide whether it should revise the design of the system, or adopt a new configuration that uses satellite coverage to provide complete real-time coverage of the greatly expanded operational area. The Coast Guard decided against satellite coverage because it could not be certain when a geosynchronous satellite would be suc- cessfully launched from an Arian rocket. Although the design that the Coast Guard selected can only provide real-time coverage up to 60 nautical miles from its relay station at Sandy Hook, New Jersey, all components of the system are entirely under the control of the Coast Guard. When the vessel is outside of the range of the relay station, data on the vessel's status is stored in the on-board black box computer and is telemetered to the base station as the vessel returns to port. After the base station re- ceives the data, a printout of the vessel's trackline and dump status for the entire mission can be made. If the printout shows a violation, EPA could use the printout as a basis for an enforce- ment action. Sixteen ODSS units have been installed on the 16 oceangoing vessels authorized by EPA to dump sewage sludge at the 106- Mile Site. Each time a vessel dumps sludge at the 106-Mile Site it is considered to be one dump mission. The Coast Guard consid- ers any dump mission printout that shows the time, date and coordinates of the vessel during the dumping operation, as well as draft readings from at least one transducer (or pressure sen- sor), to be complete. During the period covered by this report, there were typically 50 to 65 dump missions per month. During the first five months of its operation, the ODSS averaged almost 42 percent complete printouts. During the next four months of operation, its perfomance rating averaged only 14 percent, lower- ing the average ODSS performance rating for the whole reporting period. Overall, during the first 9 months of operation, the num-" ber of complete ODSS printouts obtained for each month ranged from 7 to 46 percent, with an average of 29 percent. ------- This performance rating of 29 percent complete printouts fell short of the Coast Guard's goal of 80 percent complete printouts. However, even partially complete printouts can provide valuable information. For example, if only the time, date, and coordinates of the vessel are obtained from the ODSS printout, EPA can compare the actual amount of time a vessel remained inside the 106-Mile site with the calculated amount of time it would take the same vessel to dump its sludge at the permitted rate of discharge. If the printout shows that the time that the vessel remained in the site was less than the time required to dump at the permitted rate, then the vessel must have exceeded its maximum permitted dumping rate, dumped outside of the 106-Mile Site, or both. Therefore, even if none of the transducers are functioning, an enforcement action may be possible. Even though the ODSS has not attained its performance goals, the design of the ODSS provides a deterrent effect because the ocean dumpers do not know when the system is or is not working properly. Therefore, any ocean dumper that engages in illegal dumping in the hope that the ODSS may not be working is taking a risk. However, because the performance of the ODSS has been inconsistent, EPA is concerned that the deterrent effect of the ODSS has been diminished. There are no plans for installing ODSS units on the shallow draft, or feeder, vessels that transfer sludge to oceangoing vessels or land-based storage tanks. Navigation to some treatment plants can only be accomplished by feeder vessels because waters are too shallow or access is too narrow to permit passage of larger oceangoing vessels. The ODSS units are designed to provide surveillance of dumping operations and vessel movements to and from the designated dump site. Therefore, as now configured, the units are not practicable for use in monitoring the feeder vessels, which frequently load and unload sludge at different loca- tions. To provide additional surveillance, in February of 1989, EPA began implementation of a cradle-to-grave manifest and seal system designed to monitor all sludge transfers. Under this system all dump valves on each feeder vessel or oceangoing vessel will be sealed, with EPA-supplied seals, before any sludge is loaded onto the vessel. Immediately after each sludge transfer, an inspector approved by EPA will seal all other valves. These inspectors will also record the volume of sludge transferred and other pertinent information on sludge manifest forms. The Coast Guard will conduct spot checks of the feeder vessels and ocean- III ------- going vessels while they are transporting sludge through the harbor. If any seals are found to be broken or missing, or show signs of tampering, the vessel may be required to immediately return to port, where a full investigation can be conducted. The purpose of this system is to prevent illegal short dumping of sludge and also to prevent any prohibited or banned substances from being surreptitiously loaded onto the vessels along with the sewage sludge. This system has been operating as a pilot program since February 1989. When the special ocean dumping permits became effective on August 14, 1989, the manifest and seal system became a permit condition. Although the ODSS has fallen short of its goal of obtaining com- plete printouts for 80 percent of all dump missions, it must be remembered that the system has been fully operational for about one year. The Coast Guard has continued to work on difficulties encountered during this time period. However, some problems are persistent and have undermined the reliability of the entire system. EPA has strongly encouraged the Coast Guard to em- ploy an independent contractor to evaluate and review the entire system from top to bottom. Several plans for upgrading the ODSS to provide near real-time coverage of all or most of the operational area are discussed and evaluated in this report. EPA is encouraging the Coast Guard to implement and test one of these plans, as well as to increase efforts to improve the overall reliability of the system. EPA- approved shipriders, supplied by the permittee, will be required on all vessels transporting sludge to the dump site in the interim. iv ------- TABLE OF CONTENTS Executive Summary i Acknowledgements vi Introduction 1 The Regulatory Need for Electronic Surveillance 1 Development of the Ocean Dumping Surveillance System 2 About This Report 3 The ODSS 4 Overview 4 Components of the ODSS 4 Electronics Package 4 Transducers 5 Base Station 6 Operation of the ODSS 7 Interrogation Intervals 7 Dump Determination 7 ODSS Screen Displays 9 Advantages of the ODSS as a Surveillance Tool 12 Accuracy of the ODSS 14 Installation of the ODSS 15 Sludge Manifest and Seal System 16 Effectiveness of the ODSS Completeness of ODSS Coverage 19 Violations of Ocean Dumping Permits 21 Limitations to the ODSS 22 Need for Installation of Additional ODSS Units 24 Improvements to the ODSS 25 Antenna on the World Trade Center or Loran Tower .... 25 Satellite Link 26 Communications Capability 27 Conclusions and Recommendations 28 Glossary and Acronyms 30 Appendix A 32 Vessels Authorized to Dump Sludge 32 Permittees Authorized to Dump Sludge 33 Appendix B 34 ODSS Printout . . 34 ------- ACKNOWLEDGEMENTS This report was prepared by Mr. Albert L. Visconti, U.S. EPA Region II, Ocean Dumping Task Force, New York, New York. The work assignment manager was Ms. Karen Klima, U.S. EPA Office of Marine and Estuarine Protection, Washington, DC. Technical data and diagrams were supplied by the U.S. Coast Guard's Office of Research and Development, Groton, Connecti- cut. Support was also provided by U.S. Coast Guard Technicians and Officers at U.S. Coast Guard Headquarters, Washington, DC, and at Governors Island, New York, New York. vi ------- INTRODUCTION The Regulatory Need for Electronic Surveillance Ocean dumping of sewage sludge has occurred since 1924. The practice of ocean dumping developed over the years because it was a convenient and comparatively inexpensive means of waste disposal. In 1972, Congress passed the Marine Protection, Research, and Sanctuaries Act (MPRSA) to regulate the disposal of wastes in the ocean. As amended, MPRSA is the primary legislative authority directly related to ocean dumping. Under MPRSA, EPA is responsible for issuing permits for sewage sludge disposal and for designating, managing, and monitoring ocean disposal sites. Surveillance of operational aspects of permitted disposal and enforcement of permit conditions are joint responsi- bilities of EPA and the Coast Guard. Under Section 107 of MPRSA, the Coast Guard is required to conduct surveillance of ocean dumping activities. A barge dumps and the 165-foot EPA Ocean Survey Vessel Peter W. Anderson enters the plume to conduct monitoring studies. In 1984, EPA designated the 106-Mile Site to receive municipal sewage sludge. The 106-Mile Site is located 120 nautical miles southeast of Ambrose Light, New York, and 115 nautical miles from Atlantic City, New Jersey. In 1986, EPA instructed the sewerage authorities to begin shifting their dumping activities ------- from the 12-Mile Site to the 106-Mile Site. In December of 1987, dumping activities at the 12-Mile Site were phased out entirely, and all dumping of sewage sludge was conducted solely at the 106-Mile Site. Several recent marine pollution events focused the attention of many legislators, the news media, and the public on a potential relationship between environmental degradation and dumping activities at the 106-Mile Site. In response to this increased attention, Congress passed the Ocean Dumping Ban Act of 1988 (ODBA), which makes ocean dumping of sewage sludge and industrial waste unlawful after December 31, 1991. ODBA requires, among other activities, that EPA, in consultation with the Coast Guard, prepare a report to Congress on the prog- ress made in using electronic surveillance equipment and other means to monitor and prevent dumping of sewage sludge outside of the designated 106-Mile Site by vessels carrying sewage sludge. This report fulfills that requirement. Development of the Ocean Dumping Surveillance System Over the years, the Coast Guard's ocean dumping surveillance goals have not been met for a variety of reasons. Bad weather can often force cancellation of aerial surveillance missions, and aerial surveillance at night is not feasible. Safety considerations can preclude a Coast Guard vessel from getting close enough to a barge to observe when it begins or stops dumping. Lack of personnel only allowed the Coast Guard to place shipriders on a limited number of vessels that transport sludge to the dump site. To improve their surveillance capabilities, in the early 1970s, the Coast Guard conducted research into the development of an Ocean Dumping Monitoring System. This system would have used a recording device to record vessel data on tape. However, this system was not adopted because collecting the tapes from the vessels and processing the data would have been too man- power intensive. In 1984, the Coast Guard began development of a new technology to monitor ocean dumping activities, the Ocean Dumping Surveillance System (ODSS), using $500,000 in funds allocated by Congress for this purpose. ------- In 1985 and 1986, prototypes of the ODSS units were installed on New York City's self-propelled sludge vessel, the M/V North River, and on towed sludge vessels. Tests were conducted by the Coast Guard. Based on the results of these tests, the Coast Guard believed that complete coverage of the entire fleet of authorized sludge vessels could be achieved if ODSS units were installed on all of the vessels. In November 1987, EPA instructed all waste transporters to coordinate the dry docking of their vessels with the Coast Guard to enable the Coast Guard to install the ODSS units on all EPA- authorized oceangoing vessels. EPA designated May 15, 1988, as the date after which only vessels equipped with an ODSS unit would be permitted to ocean dump sewage sludge. On July 14, 1988, it was announced that the Coast Guard had completed ini- tial shakedown and testing of each of the installed ODSS units and the system was considered operational. However, further system engineering and shakedown testing was required to resolve various system problems. About This Report This report covers the performance of the ODSS between July 14, 1988, and March 31, 1989 and related EPA enforcement activities during this same period. These dates are the effective date of ODSS operation, when enforcement began, and a cutoff date selected in order to analyze the ODSS data and comply with the legislative report requirement. The report examines the scope and limitations of the ODSS and describes EPA and Coast Guard efforts to overcome these limitations. EPA's sludge manifest and seal system, a system developed to track and monitor barge operations in the New York and New Jersey Harbor areas, is also described and discussed. Finally, future needs for installing and fabricating additional ODSS units and upgrading or modifying the system are explored. ------- THE ODSS Overview The ODSS includes three main components: • The electronics package or "black box," which is installed by the Coast Guard on all 16 vessels authorized by EPA to dump sewage sludge. • The transducers, or pressure sensors, which measure changes in the vessel's draft and are also installed on all au- thorized dumping vessels with the exception of two of the smaller vessels, the Leo Frank and the Sofoco //. • The base station, located on Governors Island, NY, and the relay station located at Sandy Hook, NJ. All of the components of the ODSS and the roles they play in the operation of the system are discussed in this section. Components of the ODSS Electronics Package An electronics package, or "black box" is installed on each vessel that is authorized by EPA to dump sewage sludge at the 106-Mile Site. The electronics package consists of a modified Loran receiver to determine the vessel position, a real-time clock to establish the date and time when the vessel is at a given position, circuitry to read the transducers and Loran, a com- munications package, and battery back-up. The communica- tions package contains a radio transmitter, a radio receiver, a linear amplifier, and a packet controller. The entire electronics package is encased in a tamper-resistant box to which only Coast Guard personnel have access. Also mounted on the vessel are a communications antenna and a Loran antenna. ------- Cutaway view of the electronics package or "black box." Transducers Transducers, or pressure sensors, are used to measure changes in the vessel's draft. Typically, there are three transducers mounted in the hull of the vessel in three locations: fore, aft and amidships. These are connected through circuitry to the on- board computer inside the black box. The computer converts the pressure sensor readings to draft readings. As a vessel dumps sludge it becomes lighter, consequently its draft decreases as it rises in the water. The vessel's draft and its position in latitute and longitude are shown on the ODSS printouts. (Refer to Ap- pendix B.) This information is used to determine whether a vessel has dumped within the designated site. ODSS printouts have only been used to measure average discharge rates, not instanta- neous dumping rates. ------- Base Station The base station is located on Governors Island, New York. The heart of the system is the base station's minicomputer. The base station computer interrogates the vessel's computer, deciphers the vessel's replies, puts the information in the data base, and backs up the data base. Instructions to the computer are entered through the system manager's console, a desktop computer with a standard CRT display and keyboard. Another desktop computer with a touch- sensitive screen serves as the watchstander's console, where the operator can interrogate any vessel in the system. A printer is available to print out copies of the video display. A major factor ir the selection of the computers used as the watchstander's con- soles was the touch-sensitive video display. This feature allows the user to interact directly with the screen without the need for a keyboard, and is important for a user interface that non-technical watchstanders can use with confidence. Other base station equipment includes a communications pack- age, a Loran receiver, two antennas, and a battery backup. The VHF-FM radio communication system uses a commercial-grade transmitter and receiver with a multi-tone, time-diversity modem. Base station equipment. ------- Operation of the ODSS The ODSS monitors all vessels that are authorized by EPA to dump sewage sludge at the 106-Mile Site. Basically, the ODSS operates as follows: The base station interrogates each vessel in its data base at least once each hour, and the vessel's black box replies, giving the vessel's status and providing information on the location, draft, and back-up battery status from each unit. Each vessel is assigned a three-digit identification number so that the base station can identify which ODSS remote unit it is interrogat- ing. Interrogation Intervals The base station computer conducts interrogations of the vessel's black box computer at various intervals. The interrogation interval and number of updates depend on the last known location and status of the vessel. When the vessel is docked in port, the vessel is interrogated once each hour, and when the vessel is underway in port or at sea, it is interrogated once every 20 min- utes. When the vessel is outside of communications range, its black box computer will store data on the vessel's status every 20 minutes, and upon entering the buffer, or near zone, around the 106-Mile Site, it will store data every 2 minutes. After the reduced dumping rates became effective on August 14,1989, this interval was increased to 6 minutes to accomodate the longer dumping times. Dump Determination The ODSS keeps track of a maximum draft for each vessel. The transducers provide information on draft measurements to the vessel's black box computer. When the vessel is in port, the draft is measured when the base station conducts its hourly interroga- tion. When the vessel leaves port, the maximum draft can be increased (the vessel is allowed to take on seawater as ballast) but not decreased. Once the draft decreases by a specified amount below the maximum draft, the system is triggered and considers the vessel to be dumping. ------- Power Amp XMTR Receiver Relay Station Base Station Vessel Installation ODSS Operations Diagram. A schematic representation of the ODSS, showing how the components are related to each other during operation. ------- ODSS Screen Displays The ODSS screen displays allow the watchstander to view infor- mation about the ocean dumping operations being monitored by the ODSS. The screens display information on each of the 16 vessels authorized by EPA to dump sludge at the 106-Mile Site. Some examples of the screens that are frequently used are shown below: Julian Date Time Vessel List and Compliance Screen. The Vessel List and Compliance Screen displays all 16 vessels in the database and the current vessel status and black box status of each. If a vessel status changes, it shows brighter than normal until the watchstander acknowledges it by touching the vessel square. If the new status is a violation or a fault (BAD DUMP, NO AC POWER, TAMPERING), the whole square shows brighter and blinks. Touching the blinking violation square will call the Vessel Status screen, which contains additional informa- tion, for that particular vessel. The watchstander is able to have a copy of the Vessel Status screen printed by touching PRINT SCREEN. ------- I ..... VESSEL ID* NflflE 144 KIMBERLY ANN 1* LISA 1* LISfl U5 NORTH RIVER 144 KIMBERLY ANN 145 NORTH RIVER 145 NORTH RIVER 144 KIMBERLY ANN 146 LISA 145 NORTH RIVER 145 NORTH RIVER 145 NORTH RIVER 145 NORTH RIVER 146 LISA 145 NORTH RIVER H7 MARIA 146 LISA 146 LISA 146 LISA MISSION .................. | | ......... | .... ...I END I R£F» 8 MAR 86 STILL'ftCfivf" 23 JAN 86 12:00 6 MAR 86 567 8 DEC 85 12:00 23 JAN 86 CMC 8 DEC 85 12:00 6 MAR 86 LCDR 8 DEC 85 01:00 8 MAR 86 HINTON 8 NOV 85 07:00 5 DEC 85 8 NOV 85 12:00 8 NOV 85 7 NOV 85 23:50 7 NOV 85 00714 7 NOV 85 12:00 6 MAR 86 7 NOV 85 12:00 6 MAR 86 6 NOV 85 23:59 6 NOV 85 COTP-123 5 NOV 85 23:59 5 NOV 85 HI THERE 5 NOV 85 10:31 5 NOV 85 22 OCT 85 23:C9 22 OCT 85 UVU 17 OCT 85 23:59 17 OCT 85 STORK 11 OCT 85 00:00 12 JAN 85 11 OCT 85 22:00 10 OCT 85 CG1234 10 OCT 85 22:00 10 OCT 85 9 OCT 85 15:00 10 OCT 85 Mission Master File Screen. The Mission Master File Screen lists the mission numbers in order, most recent at the top, along with the vessel name and I.D. number, the date and time that each mission started and ended, and the Captain of the Port (COTP) Reference Number for each mission. The COTP Reference Number is assigned to each vessel by the Coast Guard contact person at the start of each dump mission and is unique for each dump mission. The mission numbers are assigned chronologically by the computer (1-99) but are not unique for each dump mission-after counting to 99, the mission numbers are repeated. Each of the 16 vessels in the fleel has a unique, three-digit vessel identification number. A copy of the mission master file can be printed by touching PRINT MASTER. 10 ------- Vessel: LISA Box * 146 MISSION i 24 COTP « die 23 9:05:00 VESSEL OWNER: MODERN TRftNS. PHONE: 201-589-0277 DESTINATION: 106-I1ILE SITE HISSION START: 12:34 8 DEC 85 ETA DUMP SITE: 00:00 8 DEC 85 QTY TO DUMP: 900 cu.ft. TOW FIRM: (NONE) DRAFTS: MISSION FULL. NORHAL FULL . NORMAL EMPTY. CURRENT READINGS 13:35 20 DEC 85 DOCKED 40 35.05N / 73 55.60U 10.0 13.4 11.2 11.5 . . . ok ... TIME OF READINGS . VESSEL STATUS . . . LOCATION . . DRAFTS . (fud.iid.aft) . . . BATTERY . . . . . LORAN . . . . AC POWER . . . INTRUSION . PREVIOUS READINGS 13:31 20 DEC 85 . . . DOCKED 40 35.05N / 73 55.60W . 10.0 13.4 11.2 . . . 11.5 ok Vessel Status Screen. The Vessel Status Screen displays the current status information for a specific vessel. If the vessel is outside of the range of the ODSS (60 nautical miles from Sandy Hook, NJ) the screen will show the status of the vessel at the time of the last communica- tion. Vessel Specification Screen. VESSEL: NORTH RIVER OHNER: NEW YORK CITY LENGTH BEAfl CAPACITY DISPLACEMENT' inAxiiiiin i'.'.'.!'.'.!! NORMAL DRAFT (FULL) (EMPTY) DUMP INDICATOR (BEGIN) (END) SENSOR LONGITUDINAL DISTANCE.. VERTICAL DISTANCE (even keel')'. Vessel ID: 145 (212-860-93424 79 11:26:25 325 feet 49 feet 107000 cubic feet 6549 long tons 15.0 feet 4.9 feet 1.7 feet less than max. calculated draft 7.9 feet calculated draft 0 feet (FWO to HID) 0 feet (HID to AFT) 0 feet (FIC sensor LOWER than HID) 0 feet (AFT sensor LOWER than MID) SLUDGE LAST KNOWN POSITION: 41 18.SON 72 3.51U AS OF 07:25 19 IK* 86 The Vessel Specification Screen displays information describing the vessel. This information (e.g., length, beam, capacity, 11 ------- displacement etc.) generally does not change. It is entered into the system through the System Manager's Program and can only be modified by using this program. Vessel name Vessel ID number \^Period covered by track Mission number Vessel Position Screen. 106-mile dump site 12 The Vessel Position Screen displays a representation of the New Jersey coast and offshore area. This display shows the vessel path to and from the 106-Mile Site and the vessel position when dumping inside the site. A copy of the screen can be printed by touching PRINT SCREEN. Advantages of the ODSS as a Surveillance Tool The ODSS was designed to be easy to learn and easy to use, and to minimize the workload of the personnel necessary to operate the system. The watchstanders and the system manager have multi-mission responsibilities and can not devote their full time to operation of the system. Therefore, the Coast Guard developed a ------- simple touch-screen interface for the watchstanders and a soft- ware program that automatically generates information on dump- ing activity. The Coast Guard initially estimated that between the watch- standers and system manager, operation of the ODSS will require about one resource-year to operate the system for an entire year. More recent estimates by the Coast Guard indicate that about five resource-years will be required. In comparison, it would require approximately 26 resource-years to maintain shipriders on the vessels going to and from the dump site during the same time period. The "black box", opened to show its components. 13 ------- Accuracy of the ODSS The key piece of equipment in each vessel's black box is the Loran receiver. This component receives signals from the Coast Guard's land-based Loran-C Navigation System to determine its precise location. The Loran receiver inside the black box is similar to the Loran receiver that the master of the vessel uses to navigate to the 106-Mile Site. Both Loran receivers will display the same coordinates at the same time. Therefore, the question of ODSS accuracy really has to do with how efficient the rest of the ODSS system is at accurately relaying the information contained in the Loran receiver to the base station. In an attempt to answer this question, EPA compared two independent sources of infor- mation; the ODSS printouts and the Ocean Dumping Notification Forms (ODNF) that EPA, through a permit condition, requires vessel masters to submit after each dump mission. The critical points and times (i.e., enter and exit dump site, start and end dump) from the two sources were shown to match. Because a vessel is permitted to enter and exit the dump site at any coordi- nates it chooses, the chances of a match being mere coincidence are almost nonexistent. Additionally, the coordinates of the sludge generator's docking facilities were checked against the coordinates shown on the ODSS printouts when the vessels were at the docking facilities. The two sets of coordinates were found to be the same, confirming that complete ODSS printouts accu- rately identify the location of the vessel. The transducers, which measure changes in water pressure, are connected through circuitry to the computer inside the black box. This computer, after discounting for the effects of wave action, uses the pressure readings from the transducers to determine the draft of the vessel. Although the transducers measure the draft of the vessel accurately when they are functioning, the number of incidents when the transducers are not working properly is unac- ceptably high. The Coast Guard is working on a way to improve the durability of the transducers. ------- INSTALLATION OF THE ODSS All barges authorized to dump sewage sludge now have ODSS units installed on board. On November 24, 1987, at a meeting of the ocean dumpers, the Coast Guard, and EPA, held at Coast Guard headquarters on Governors Island, New York, the Coast Guard requested that the waste transporters furnish them with the mechanical, electrical, and structural drawings for each of the vessels authorized by EPA to dump sewage sludge at the 106-Mile Site. The Coast Guard supplied and installed the black box, hull transducers, hull inserts, antennas, and all necessary cables and connections, at an estimated cost of $25,000 per unit. The waste transporter was responsible for supplying and mounting brackets for cables and antennas, making all necessary waterproof bulkhead holes for the cables, mounting the hull inserts into which the transducers are installed, routing the cable from the transducers and antenna to the black box, and providing the black box with an AC power source. In May 1988, the Coast Guard completed installation of 11 ODSS units on oceangoing vessels that dump sludge at the 106-Mile Site. Since then, five of the smaller oceangoing vessels have also been equipped with the ODSS units. This provides position coverage of the entire fleet of 16 vessels and the dump status of 14 of the vessels that are authorized by EPA to dump sewage sludge at the 106-Mile Site. 15 ------- SLUDGE MANIFEST AND SEAL SYSTEM There are at least 10 feeder vessels that are used to transport sludge from the sludge storage tanks on land to the larger, oceangoing vessels. Navigation to some treatment plants is restricted because of shallow waters or narrow access and the feeder or shallow draft vessels are used to service these treat- ment plants. ODSS units have not been installed on the feeder vessels and there are no plans to do so in the future. The ODSS was de- signed to provide surveillance of dumping operations and vessel movements to and from a specific designated site. Therefore, the ODSS units as now configured are not practicable for monitoring the feeder vessels, which are frequently loading and unloading sludge at different locations. EPA has closed this surveillance and enforcement gap in the ODSS through its sludge manifest and seal system. Implementa- tion of the plan began in February 1989. The purpose of this system is to prevent illegal short dumping of sludge and to pre- vent any prohibited or banned substances from being surrepti- tiously loaded onto the dump vessels along with the sewage sludge. This system has been operating as a pilot program; however, now that the special ocean dumping permits have become effective as of August 14, 1989, the manifest and seal system is a permit condition. The sludge manifest and seal system was designed to provide cradle-to-grave tracking of all sludge transfers, from their point of origin to ultimate disposal at the 106-Mile Site. Under this system all dump valves on each vessel will be sealed, with EPA-supplied seals, before any sludge is loaded onto the vessel. Immediately after each sludge transfer, an inspector approved by EPA will seal all other valves. These inspectors will also record pertinent information about each sludge transfer on sludge manifest forms. Two distinct types of seals are used. One type of seal is required on valves that are frequently used to load or unload sludge, or to dump sludge at the 106-Mile Site. Another type of seal is required on valves that must be permanently sealed. Ten-inch plastic Poly-Lok Seals have been selected for use on valves that do not require a permanent seal. Each of these seals has the words "US EPA Region II" and a seven-digit serial number embossed in white for easy identification. These seals will show whitish blush marks if any attempt is made to tamper with them. 16 ------- Poly-Lok seals used to seal the barge's dump valves. Fiber optic seals have been selected to permanently seal the dump valves on the feeder vessels. Many of these vessels were previously used to dump sludge at the 12-Mile Site and thus have discharge pipes that can dump sludge out of the bottom of the vessel. Any illegal dumping through these pipes would occur 4 to 12 feet below the water surface and would be extremely difficult to detect, especially at night. A paramount concern in the design of the sludge manifest and seal system was the integrity of the permanent seals for the valves that operate these discharge pipes. The fiber optic seal was selected because it uses state-of-the-art seal technology. Each fiber optic seal consists of a durable protective polyethylene jacket that covers randomly positioned acrylic optical fibers. Once the seal is fastened, the optical fibers form a unique fiber optic "fingerprint." A special camera is used to photograph the fingerprint. Fiber optic seals have been used to seal diplomatic pouches, secure various components inside of missile silos, and for other purposes that require a high degree of seal integrity. There are no known cases of fiber optic seals having been circumvented, through either seal substitution or tampering. 17 ------- A liber optic seal (left) and its "fingerprint" (right). No transfer of sludge is permitted if any seal is broken or missing, unless broken by the approved inspector. EPA and the Coast Guard will conduct spot checks at the loading facilities. The Coast Guard will also spot check the vessels in the process of transporting sludge. If any of the seals are found to be broken or missing, or show signs of tampering, the vessel may be required to immediately return to port, where a full investigation can be conducted. 18 ------- EFFECTIVENESS OF THE ODSS Completeness of ODSS Coverage The Coast Guard defines a "complete" printout as any printout that shows the time, date, and coordinates of the vessel during the dumping operation and shows draft readings from at least one transducer. This information is sufficient to indicate position during dumping and dumping rate. Between July 14, 1988, and March 31 , 1 989, 475 dump missions were conducted to the 1 06- Mile Site. The table below shows the number of dump missions conducted during each month of the reporting period, and the complete printouts obtained, and the percentage of complete ODSS printouts. NUMBER OF COMPLETE ODSS PRINTOUTS vs. DUMP MISSIONS MONTH July 14-31. 1988 August 1988 September 1988 October 1988 November 1988 December 1988 January 1989 February 1989 March 1989 TOTAL DUMP MISSIONS 31 55 52 63 63 52 55 50 54 475 COMPLETE PRINTOUTS 13 23 24 27 22 7 4 4 14 138 PERCENT 42 42 46 43 35 13 7 8 26 29 During this reporting period, 138 ODSS printouts were complete, an average value of 29 percent completeness. Because of com- ponent failures and other system engineering problems, there were several weeks during the months of January and February when no data were collected, resulting in a very low performance rating for these months. The figure below shows a graphic representation of complete printouts vs. dump missions. ------- Number of complete ODSS printouts vs. number of dump missions. Number of Dump Missions 70 ^ Dump Missions Complete ODSS Printouts Dec Feb Mar 1988 1989 EPA can also glean valuable information from some ODSS print- outs even though the printouts are not complete. For example, EPA can compare the amount of time a vessel remains inside the 106-Mile Site with the amount of time it would take the same vessel to dump its sludge at the permitted discharge rate. If the printout shows that the amount of time the vessel remained inside the 106-Mile Site is less than the time required to dump at the permitted rate, then the vessel must have exceeded its maximum permitted dumping rate, dumped outside the 106-Mile Site, or both. Therefore, even if none of the transducers are functioning, an enforcement action may be possible. 20 ------- Violations of Ocean Dumping Permits Violations detected by the ODSS between July 14,1988, and March 31,1989, have been tabulated and are shown in the table below. One dump, suspected to have occurred more than 20 nautical miles outside the site in January 1989, is currently under investigation. Instances in which vessels strayed outside of the site during dumping operations are also under investigation. VIOLATIONS SHOWN ON COMPLETE PRINTOUTS MONTH July 1988 August 1988 September 1988 November 1988 December 1988 January 1989 February 1989 March 1989 TOTAL SHORT DUMPS 0 0 0 0 0 1 0 0 1 STRAYED OUTSIDE SITE 1 2 1 0 0 0 0 0 4 EXCEEDED DUMPING RATE 0 0 0 0 0 0 0 0 0 In July of 1988, EPA issued Administrative Complaints against all three waste transporters and all nine sewerage agencies for per- mit violations. Most of the complaints contained penalties for exceeding the maximum allowable discharge rate prior to July 1988. The complaints were a result of EPA's examination of Ocean Dumping Notification Forms (ODNFs). An ODNF contains information on a vessel's start and end dump times and the quantity of sludge dumped. Permit conditions require the master of each vessel to submit an ODNF after each dump mission. Since the July complaints were issued, no discharge rate viola- tions have been detected, during the time period covered by this report, either by an examination of the ODNFs or by examination of complete ODSS printouts. ------- Limitations to the ODSS The ODSS is not effective in detecting illegal discharges of sludge in the harbor areas or during vessel transfer (loading and unload- ing) operations. Tall structures or bridges in the harbor area interfere with or block line-of-sight radio transmissions, creating "dead zones". Even when transmissions are not blocked, the effectiveness of the system is limited during transfer operations. The ODSS determines vessel dump status by measuring changes in vessel draft. Before the system can accomplish this, it must determine a maximum draft for the vessel. A maximum draft for any given vessel can only be determined after the vessel has been loaded and has departed port. If a vessel were to illegally dump sludge out of its bottom discharge pipes at the same time that it was being loaded with sludge, the ODSS would not be able to detect a violation. In addition, vessels can hit bottom during loading, which further impedes the determination of vessel draft by the ODSS. Therefore, EPA will monitor all sludge transfers through its sludge manifest and seal system, as described in this report. As designed, the ODSS communications link does not provide continuous contact between the base station and the vessels. Therefore, real-time detection of violations cannot be made. When vessels are more than 20 nautical miles from the Coast Guard base station located on Governors Island, New York, or 60 nautical miles from the relay station at Sandy Hook, New Jersey, communication is lost. Data on the trackline and dump in- formation must be stored in the vessel's black box computer until the vessel again enters communications range on its return to port. To detect ocean dumping violations, EPA and the Coast Guard use printouts that are generated after the dumping has occurred. Initially, it was expected that the ODSS would be able to obtain complete printouts on 80 percent of all dump missions. During the first five months of its operation, the performance of the ODSS averaged almost 42 percent. Overall, during the first 9 months of operation, the ODSS obtained complete printouts on only 29 percent of the dump missions. The Coast Guard is reevaluating the ODSS to determine possible measures to improve its perform- ance while considering other surveillance techniques. 22 ------- 77' BASE STATION Governors Is., NY s RELAY STATION Sandy Hook, NJ \.-'' 106-Mile Site Area presently outside the range of real-time coverage ATLANTIC OCEAN Chesapeake Bay 71' 70° ODSS Coverage Area. Line-of site radio transmission is possible for 20 nautical miles from the base station and for 60 nautical miles from the relay station. The communications range would have to extend to the 106-Mile Site to provide near real-time detection. 23 ------- Shipriders Shipriders are independent observers that remain on board the tugboat or self-propelled vessel for the duration of the dump mission. Until the ODSS improves, EPA will need to supplement the system by requiring that Shipriders accompany the ocean- going vessels. The shiprider's job is to ensure that the vessel operators dump the sludge in the designated dump site and at the permitted discharge rates. However, Shipriders also have limitations. Because most barges are towed at a distance of up to one-quarter mile behind the tugboat and some of the barges are unmanned, the Shipriders will not be able to observe when dumping actually starts and ends. Also the average dump time at the 106-Mile Site at the reduced rates is 18 hours. Some vessels will require 38 hours or more to discharge their sludge. The ship- riders cannot be expected to remain awake for the entire dis- charge operation. Shipriders do not replace the ODSS, they can only complement operation of the ODSS. Cost estimates for the services of a qualified shiprider range from $700 a day to $1200 a day. A new permit condition requires that an EPA-approved shiprider, supplied by the permittee, accompany each vessel that transports sludge to the dump site. Need for Installation of Additional ODSS Units The two most likely reasons for requiring the installation and fabrication of additional ODSS units are the reduced dumping rates required under the special ocean dumping permits and the need for surveillance of the feeder vessels. Currently, data indi- cate that the 16 oceangoing vessels that are equipped with the ODSS are sufficient to transport all of the sludge at the reduced discharge rates in the special ocean dumping permits. At pre- sent, no ODSS units are installed on the feeder vessels, nor are there any plans to install ODSS units on these vessels, because the ODSS is not an effective surveillance tool on feeder vessels. EPA will monitor the feeder vessels through its sludge manifest and seal system. In conclusion, the installation of additional ODSS units at this time is unnecessary. However, should unforeseen exigencies require that additional vessels be equipped with ODSS units, the Coast Guard could install two units on short notice if the need arises, provided that the waste transporter arranges for expeditious dry docking of the vessel. If there is an emergency that requires an immediate response, EPA may, upon receipt of a written request 24 ------- from a waste transporter, authorize a vessel not equipped with an ODSS unit to dump sewage sludge at the 106-Mile Site. EPA will require the vessel to be accompanied by an EPA-approved shiprider each time the vessel departs for the 106-Mile Site. Improvements to the ODSS Some of the problems associated with the ODSS during this re- porting period can be attributed to normal start-up and initial operation of the system. However, there are other problems that are persistent and have undermined the consistency of the entire system. In October 1989, the Coast Guard hired an independent contractor to troubleshoot the ODSS Software. After problems in the software are resolved, the Coast Guard will complete con- tracting for another independent maintenance contractor who will service the ODSS units on each of the vessels. It is anticipated that the ODSS performance should improve once the contractor becomes a dedicated resource not tasked with other duties, and assumes responsibility for troubleshooting the system and devel- oping a strict maintenance schedule. To improve the coverage of the ODSS to include near real-time surveillance of all or most of the operational area, two possible options are being discussed: (1) increase the range of real-time coverage by placing an antenna on top of the World Trade Cen- ter, on top of the Loran Tower at Wildwood, New Jersey, or on any structure that is substantially higher than the 180-foot com- munications tower at the relay station; and (2) establish a satellite link for communicating with the base station. EPA also recom- mends improvement of the communications capability between the Coast Guard on Governors Island and the vessel operators in the operational area. Antenna on the World Trade Center or Loran Tower Because the ODSS is a line-of-site system, the quickest, most direct, and least expensive approach for upgrading the ODSS is to place an antenna on top of a structure that is substantially higher than the communications tower at the relay station, such as the World Trade Center. An antenna on top of the World Trade Center may allow for almost complete real-time coverage of the entire operational area. No changes to any of the ODSS remote units would be required. The antenna, at a height of 1,130 feet, 25 ------- would take the place of the 180-foot line-of-sight (LOS) communi- cations tower located at Sandy Hook, New Jersey. The Coast Guard would be almost instantly alerted of a violation almost anywhere in the operational area. Another possible option for improving the range of the ODSS's real-time coverage is to place an antenna on top of an existing Loran tower. There is a 720-foot Loran tower in Wildwood, New Jersey. Although this tower is not as tall as the World Trade Center, it is located parallel to the 106-Mile Site and is completely under the control of the Coast Guard. The costs to place these antennas is estimated to be about $16,000 for the World Trade Center and about $800 for the Loran tower in Wildwood. Recently, EPA was informed by the Coast Guard that revised calculations indicate that an antenna on the World Trade Center or on the Loran tower at Wildwood, New Jersey, might not be effective because of background and other atmospheric inter- ference problems. EPA is encouraging the Coast Guard to go beyond theoretical calculations and actually install and test one or both antennas, and also to examine other innovative ap- proaches to increasing real-time coverage when they conduct their reevaluation of the ODSS. Satellite Link The Coast Guard has been investigating the feasibility and cost of retrofitting the present ODSS to accommodate the satellite link GEOSTAR. A rough estimate of the cost to complete this retrofit- ting is about $1 million. Adopting GEOSTAR would provide a near real-time data link to the barges by eliminating the electronic telemetry between the base station and the remote units. GEO- STAR was selected because of its reliability and its ability to meet data capture criteria without delays in transmission. A satellite link would require that the Ray Nav Loran recievers that are incorporated into the ODSS remote unit on each of the au- thorized vessels be replaced with a satellite transceiver, which uses an ANI 7000 Loran-C receiver. The satellite transceiver would be able to continuously transmit to a geosynchronous sa- tellite. Therefore, complete real-time coverage of the operational area could be achieved. The satellite transceivers are commer- cially available from several manufacturers. The satellite tran- sceiver uses a spread spectrum-type transmission, which would 26 ------- minimize any possible interference. Frequencies in the 1610- 1626.5 MH band have been allocated by the FCC for these new Radio Determination Satellite Services. Communications Capability Another aspect of the ODSS that needs improvement is the communications capability of the Coast Guard base station on Governors Island, New York. The base station is now using VHF- FM radio communications, which only allow the Coast Guard to communicate with the vessel operators approximately 35 nautical miles from shore. Although theCoast Guard can communicate with the vessel operators indirectly through their land-based dispatchers, EPA believes that the Coast Guard should have the ability to talk directly with the vessel operators anywhere within the operational area. At present, the vessel operators can com- municate with their land-based dispatchers anywhere in the operational area via single-side band radio or by satellite commu- nications. However, direct communications between the vessel operators and the Coast Guard on Governors Island are limited to those via VHF-FM radio. 27 ------- CONCLUSIONS AND RECOMMENDATIONS Both EPA and the Coast Guard expected the ODSS to perform better than it has during its first 9 months of operation. Perform- ance has been sporadic-some weeks it generated a high per- centage of complete printouts, other weeks the percentage was low or zero. Although the ODSS provides some deterrent effect in that the dumpers cannot be certain whether or not it is functioning properly, EPA is concerned that the deterrent effect of the ODSS has been diminished by its inconsistent performance record. Therefore, until the consistency of the ODSS improves, EPA will require shipriders on board the vessels that are authorized to dump sewage sludge at the 106-Mile Site. As consistency im- proves, the shiprider requirement may be partially or completely waived. EPA will monitor the progress of the overall system as well as the individual performance of units on each of the 16 vessels authorized to dump sewage sludge at the 106-Mile Site. To improve the coverage of the ODSS, EPA encourages the Coast Guard to install and test antennas on the World Trade Center or on the Loran tower at Wildwood, New Jersey, or on any structure that is substantially higher than the 180-foot communi- cations tower at the relay station. Although satellite coverage may appear to be an attractive option, EPA is concerned that by the time extensive modifications are completed on each of the ODSS units and the system is thoroughly tested and debugged, ocean dumping of sewage sludge will have ended. On the other hand, the antenna approach can be quickly implemented and should greatly enhance coverage. Anyone who has watched the performance of the ODSS during the past months will be impressed by the fact that the ODSS unit on the Sea Trader I, the largest vessel in the fleet, is capable of communicating with the base station up to 80 nautical miles from the relay station. The other 15 vessels in the fleet are only ca- pable of communicating with the base station up to 60 nautical miles from the relay station at Sandy Hook, New Jersey. The reason for this difference is that the communications antenna on the Sea Trader I is approximately 10 to 20 feet higher than the antennas on the other vessels. The ODSS is a line-of-sight system. Therefore, increasing the height of the land-based antenna and/or the antenna on board the vessel could increase the range of coverage. 28 ------- The Sea Trader I Now that the sludge manifest and seal system is a permit con- dition of the special ocean dumping permits, EPA and the Coast Guard will work together to ensure that this system protects the harbor, estuarine, and shore areas in New York and New Jersey from any potential illegal dumping by the feeder or oceangoing vessels. This system, backed by Coast Guard spot checks of the vessels while they are transporting sludge and by EPA and Coast Guard spot checks at the loading facilities, is expected to deter any violators. EPA and the Coast Guard are confident that by employing the ODSS, the sludge manifest and seal system, and shipriders to complement operation of the ODSS, cradle-to-grave monitoring of sewage sludge from its point of origin to its ultimate disposal at the 106-Mile Site will be achieved. 2:- ------- GLOSSARY AND ACRONYMS 106-Mile Site At Sea Bad Dump Black Box Complete ODSS Printout Docked DMSDS Dumping Feeder Vessel/Shallow Draft Vessel FCC (Also known as DMSDS) 106-Mile Deepwater Municipal Sludge Dump Site. A vessel is considered at sea when it is not in port, but in the area of the outer New York Harbor, Long Island Sound or the Atlantic Ocean. (Also known as Short Dump) Any dump that is outside the designated dumpsite. (Also known as the electronics package or remote unit) The ODSS (see below) component installed on each dumping vessel that houses a Loran-C receiver, clock, circuitry, and communica- tions package in a tamper-resistant box. A printout that shows the time, date, and coordinates of the vessel, and draft readings from at least one transducer during a dumping operation. A vessel is considered docked if it is in port and has not moved for three polling periods. When in port, each polling period is 20 minutes. (Also known as the 106-Mile Site) 106-Mile Deepwater Municipal Sludge Dump Site. A vessel is considered dumping when its draft decreases by a specified amount below the maximum draft and triggers the ODSS. Any vessel used to transfer sludge from one location (or vessel) to another, primarily within the New York/New Jersey Harbors. Federal Communications Commission. Geosynchronous Satellite A satellite that travels at an altitude of at least 35,000 kilometers, and at a speed matching that of the earth's rotation, thereby maintaining a constant relation to points on the earth. In Port A vessel is considered to be in port when it is within the area roughly encompassing the New York Harbor north of the Ver- razano Narrows Bridge plus the west side of Staten Island and Rockaway inlet. 30 ------- Line-of-Sight Transmissions Long-Range Hyperbolic Radio Navigation System (Loran C) Loran Receiver MPRSA Nautical Mile NOAA Oceangoing Vessel ODBA ODNF ODSS ODSS Unit Real-Time Detection Resource-Year Shipriders Short Ton Single Side Band Radio Vessel Draft VHF-FM Radio Radio transmissions that can only be made if the transmitting and the receiving antennas are within sight of each other. A land-based navigation system, operated by the Coast Guard, which transmits radio signals to vessels. Any vessels equipped with a Loran receiver can determine its location within 50 meters. A receiver that receives signals from the Loran-C, interprets the signals, and visually displays the latitude and longitude of the vessel. Marine Protection, Research, and Sanctuaries Act of 1972. One nautical mile equals 6,076 feet or 1.15 statute miles. National Oceanic and Atmospheric Administration. Any vessel that is authorized to dispose of sludge at the 106-Mile Site. Ocean Dumping Ban Act. Ocean Dumping Notification Form. Ocean Dumping Surveillance System. The entire ODSS includes the base station, the relay station, and the vessel installation. All ODSS equipment installed on a vessel-the "black box," transducers, connecting circuitry, communications equipment, and Loran antenna. The ability to detect dumping violations as they occur. The amount of work a person can be expected to perform in one year. One resource year equals 48 weeks x 40 hours/week or 1,920 hours/year. Independent observers who remain on board the towing vessel or the oceangoing vessel for the duration of the dump mission. 2000 pounds, as opposed to a long ton, which is 2240 pounds. High frequency radio transmissions that are not limited to line-of- site range, but can be sent and received over great distances. Depth of a vessel between the water line and the deepest point of the hull. Radio transmissions that are limited to line-of-sight range. 31 ------- APPENDIX A Vessels Authorized to Dump Sludge Authorized Vessels Sea Trader 1 Eileen Weeks 702 Lemon Creek Spring Creek Tibbets Brook Udalls Cove Morris J. Berman Princess B1 Kimberly Ann Lisa Maria Weeks 701 Leo Frank OBI IV 2 Sotoco // 2 TOTAL Capacity (Wet Tons) 38,000 1 8,000 1 7,800 1 5,000 1 5,000 1 5,000 1 5,000 12,000 12,000 8,000 8,000 7,900 6,400 5,500 1,000 1,000 196,100 1 Princess B sank on or about October 6, 1989, inside or near the 106-Mile Site. 2 Authorization for these vessels to dump sewage sludge at the DMSDS was abrogated on August 14, 1989, at the request of the waste transporter. 32 ------- Permittees Authorized to Dump Sludge Permittees Wet Tons per Month * New York City Dept. of Environmental Protection Passaic Valley Sewerage Commissioners Middlesex County Utilities Authority Nassau County Dept. of Public Works Westchester County Dept. of Environmental Facilities Bergen County Utilities Authority Joint Meeting of Essex and Union Authority Rahway Valley Sewerage Authority Linden Roselle Sewerage Authority TOTAL 379,891 116,667 83,417 76,650 42,803 35,833 33,367 14,097 8,342 791,067 * Projected sewage sludge quantities for 1991. 33 ------- APPENDIX B ODSS Printout OCLAN DUMPING SURVL1LLANCE SYSftM VE5!iLL HISTORY VESSEL NORTH RIVER VESSEL ID 145 Ktr UK 1 tl/-' 1 DATE 20 DEC 20 DEC 20 DEC 20 DEC 20 DEC 20 DEC 20 DEC 20 DEC 20 DEC 20 DEC 19 DEC 19 DEC 19 DEC 19 DEC 19 DEC 19 DEC 19 DEC 19 DEC 19 DEC 19 DEC 19 DEC 19 DEC 19 DEC 19 DEC 19 DEC 19 DEC 19 DEC 19 DEC 19 DEC 19 DEC 19 DEC 19 DEC 19 DEC 19 DEC 19 DEC 19 DEC 19 DEC 19 DEC 19 DEC 19 DEC 19 DEC 19 DEC 19 DEC 19 DEC 19 DEC 19 DEC 19 DEC 19 DEC 19 DEC 19 DEC 8S 3 j 85 BS BS BS 8" BS 85 BS Hr. 85 BS B ': B! 1 H" B - 5 BS 85 B! BS 85 85 85 8', B< -'• 95 as ^, as BS 85 BS 8S BS B\ BS e^ BS B< BS BS BS BS 85 85 BS BOX TIME 1340 : 1338 1240 1140 1040 0940 0920 0900 0840 0834 2241 2141 2121 2059 2019 1939 1919 1859 1839 1819 1759 1739 1719 1659 16S7 1655 1653 1651 : 1651 1649 1647 1645 1643 1641 1627 .1625 1607 1545 1525 1505 1445 1345 1245 1145 ' 1131 1043 0943 0843 0823 0803 STATUS -LUUH i iun— • LATITUDE 40 •*? 40 4g 41 40 40 40 40 40 40 ..• D 40 * - 0 so 40 4g 40 •>• ^i- 41 40 40 41 40 41 40 40 40 40 40 At, 4n <0 40 40 4C 40 40 40 « ] * ) 40 40 * } 40 40 40 40 t 31 .5! 30 38 38 39 38 38 42 47 47 47 47 47 0 45 41 37 34 31 29 27 24 23 23 23 23 23 23 23 24 24 24 24 26 26 28 30 34 38 38 38 38 38 38 38 38 38 38 38 61N .87N 72N .71N .72N 72N .72N 71N 31N 33N 3SN 37N 35N 34N DON 12N 84N 28N 05N 06N 39N 21N 78N 39N 52N 63N 74N 85N B5N 97N 17N 82N 87N 97N 24N 52N 95N 08N S7N 23N 32N 30N 30N 30N 30N 30N 30N 30N 30N 30N «LORAN LONGITUDE 74 0 74 0 74 1 74 1 74 1 74 1 74 1 74 1 73 59 73 54 73 54 73 54 73 54 73 54 0 0 73 57 74 0 74 2 74 1 73 58 73 54 73 49 73 44 73 42 73 42 73 42 73 42 73 43 73 43 73 43 73 43 73 44 73 44 73 44 73 46 73 47 73 51 73 53 73 52 73 51 73 51 73 51 73 51 73 51 73 51 73 Si 73 51 73 51 73 51 73 51 DOWN . 26U 69U 88U 87W B8W 88W BBU 92U 67U 99U 99U 97U 98U 99W OOU 56U 03U 54U 43W 70U 13U 47W 78U 59U 57U 71U 90U 09U 09U 27W 82U 12U 27U 87U 68U 16U 34U 24U 62U 97U 89U 77U 77W 77W 77U 77U 77U 77U 77W 77U — l»K< FUD 13 7 13 7 137 12.8 12 8 88 66 66 6 6 6.9 15.8 15.4 13 3 11 8 64 6.2 6.4 64 66 6 6 66 66 69 6 9 6.9 6.9 6.9 6.9 69 8.7 10.6 14.7 15.9 16.3 16 3 16 1 15 2 15 0 15 0 15.0 15.2 14.3 11 1 10 9 92 84 8. 1 6.4 6.4 6 4 MID 14 6 146 14 1 13 3 13 1 9. 0 8.1 8 1 8 6 B 1 15 2 14.8 13.3 11 3 7.9 8. 8. 8. 8 8 8 8 B 1 79 7.9 7.9 79 79 7.9 89 98 11.3 13 9 15 6 15 6 156 15.2 152 15.0 15.0 15. 0 13 V 11 1 10.9 9.9 9.2 9.0 7.9 79 7.9 - < AFT 14 8 14 8 148 13 7 13 3 9 0 90 9 0 88 88 15.4 14 8 13 7 11 3 B 8 86 86 86 86 8 8 86 86 86 86 86 86 8.6 86 86 92 9.6 10 1 12 6 15 2 15 2 15.2 15 2 15 0 15 0 15 2 15 2 14 1 11. 1 10 9 10 1 V.6 96 86 86 86 B« 1 1 VOLT 12 1 12 1 12 1 12.2 12 1 12. 0 12.0 12 0 12. 0 12 0 12. 1 12. 0 12.0 12 0 12 0 12. 0 12 0 12.0 12 0 12. 0 12. 0 12 0 12 0 12 0 12. 0 12.0 12 0 12. 0 12.0 12. 0 12 0 12. 0 12 0 12.0 12.0 12. 0 12.0 12 0 12 0 12 0 12.0 12 0 12 0 12. 0 120 12.0 12.0 12.0 12 1 12 1 •WRONG DOCK XINTRUSION •-b 1 « IUb — 1 VESSEL HOX AT SEA AT SEA DOCKED DOCKED DOCKED DOCKED INPORT INPORT INPORT INPORT INACTIVE DOCKED INPORT INPORT NO LORAN INPORT INPORT INPORT AT SEA AT SEA AT SEA AT SEA AT StA AT SEA AT SEA »>T SEA AT SLA AT SEA AT SEA DUMPING DUMPING DUMPING DUMPING AT SEA AT SEA AT SEA AT SEA AT SEA INPORT INPORT INPORT DOCKED DOCKED DOCKED DOCKED DOCKED DOCKED DOCKED INPORT INPORT 8AC POWER c k III at Ok g i Ok Ok Ik ok ok 1 ok Ok * 0. r . 0 » c k a •- ok 1. Ok Bk ok • If ok ik ok • k 0. ok ok ok »t 0. »l r> . ok ok ok ok ok X Ok Ok ok ok ok LOST MSN 1 1 25 2S 2! -23 -23 -23 -23 -23 -23 -23 -23 -23 -23 23 -23 -23 -23 -23 23 Z l 23 Z '• 23 Z i Z ' 22 23 23 23 23 23 23 23 23 23 23 23 -22 -22 -22 -22 -22 -22 -22 -22 -22 -22 34 ------- |