Table 5. Ranges of Chemical Data Measurements Near the New York 

 Dumping Grounds. 



Chemical Variable 



Range 



Total iron 







to 37.3 Mg-at/1* 



ChlorophyU-a 



0.38 



to 33.3 Mg-at/1 



Nitrate 







to 3.28 Mg-at/l 



Orthophosphate 



0.02 



to 5.64 Mg-at/1 



Organic phosphate 



0.04 



to 2.28 Mg-at/1 



Metaphosphate 



0.01 



to 2.35 Mg-at/1 



Total phosphate 



0.84 



to 7.48 Mg-at/1 



Dissolved oxygen 



2.0 



to 15.2 ppm t 



pH 



7.10 



to 8.40 



Lead in sediment 



0.55 



to 249 ppm 



Copper in sediment 



0.013 



to 338 ppm 



Chromium in sediment 



0.25 



to 197 ppm 



* microgram-atom per liter 

 t parts per million 



after SHL 1972 



52 



