B. To check and perhaps retrieve a current meter array at EN-002. 



Sampling Station Selection Procedure 



It is assumed that the following areas would be more likely to have 

 significant quantities of Argo Merchant oil in the sediments than other loca- 

 tions (in approximate order of Importance) : 



1. Areas whose sediments have been shown by chemical analysis to con- 

 tain significant quantities of Avgo Merchant oil. 



2. Areas covered by the slick for the longest periods of time. 



3. Shallower areas. 



4. Areas covered by the slick when the sea state was high. 



5. Any area covered by the slick at any time. 



6. Any area possibly affected by subsurface currents, which could carry 

 oil from slick areas to sediments a distance away from areas actually 

 covered by the slick. 



NOTE : Difference in sediment type was not considered because the area 

 in question is quite uniform with regard to sediment type. 



To date, none of the samples previously analyzed showed significant 

 quantities of oil in the sediments. By examination of NOAA-USCG slick maps, 

 two areas (referred to hereafter as Area A and Area B) were found to have 

 been covered with heavy oil pancake concentrations or consolidated slicks 

 bounded by 41°04'N and 40°54'N latitude and 69°35.2'W and 69°07'W longitude. 

 Area B is an area where heavy concentrations of oil pancakes and slick 

 stalled for 6 days before continuing to head east. Area B is bounded by 

 40°58'N and 40°33'N latitude and 68°53'W and 68°04'W longitude. 



With plans to collect sediments and water samples at a maximum of 50 

 stations, 30 of these stations were randomly distributed within Areas A & B. 

 Since Area A covers 210 square nautical miles and Area B covers 880 square 

 nautical miles. Area A was assigned 6 stations and Area B 24 stations. From 

 M. G. Natrella's Experimental Statistics Table of Random Numbers (NBS Hand- 

 book #91, U.S. Department of Commerce, 1963), a series of random numbers was 

 selected. Within Area A each nautical square mile was numbered with square 

 mile number 1 in the NW corner, number 10 in the SW corner, number 201 in 

 the NE corner and number 210 in the SE corner. Within Area B, number 1 was 

 in the NW corner, 24 in the SW corner, 865 in the NE corner, and 888 in the 

 SE corner. The following square mile areas, arrayed as described above, were 

 designated as sampling stations in Area A: 076, 184, 133, 169, 173, and 029 

 (alternates 190 and 004), In Area B, the sampling stations, the square mile 

 numbers were: 732, 783, 571, 564, 405, 756, 544, 235, 409, 355, 820, 878, 

 876, 222, 346, 107, 583, 629, 444, 654, 236, 541, 692, and 089. 



V-31 



