27 



Table 2-4 

 Calculation of REMOTS® Organism Sediment Index Value 



A. CHOOSE ONE VALUE: 









Mean RPD Depth 



Index Value 





0.00 cm 









> - 0.75 cm 



1 





0.75- 1.50 cm 



2 





1.51 -2.25 cm 



3 





2.26 -3.00 cm 



4 





3.01 - 3.75 cm 



5 





> 3.75 cm 



6 



B. CHOOSE ONE VALUE: 









Successional Stage 



Index Value 





Azoic 



-4 





Stage I 

 Stage I ® II 

 Stage II 

 Stage II ® III 

 Stage III 

 Stage I on III 

 Stage II on III 



1 

 2 

 3 

 4 

 5 

 5 

 5 



C. CHOOSE ONE OR BOTH IF APPROPRIATE: 







Chemical Parameters 



Index Value 





Methane Present 



-2 





No/Low Dissolved 







Oxygen** 



-4 



REMOTS® ORGANISM-SEDIMENT INDEX = Total of above 





subset indices 







(A+B+C) 





RANGE: -10- +11 





** Note: 



This is not based on a Winkler or polarigraphic electrode measurement. It is based on 

 the imaged evidence of reduced, low reflectance (i.e., high oxygen demand) sediment 

 at the sediment- water interface. 



Monitoring Cruise at the New London Disposal Site, 1992 - 1998 



