292 



TABLE 3 — RELATIVE PERCENT CONTRIBUTION OF SEWAGE SLDDGE 

 CONSTITUENTS TO TOTAL APEX LOADS 



Constituent 



Approximate (a) 



Total Load 

 (metric tons/yr) 



Contribution from 



Sewage Sludge 

 Dumping (percent) 



OiJ. and Grease 

 Arsenic 

 Cadmium 

 Chromium 

 Copper 

 -UeAd 

 Mercury 

 Nickel 

 Zinc 

 PCBs 



206,000 



134 



105 



1,640 



3,000 



2,130 



53 



1,000 



6,840 



9.7 



8 



2 



8 

 10 

 11 



9 



3 



4" 



8 



3 



Fecal Coliforms 



MPN/yr 



4.84 X 10 



19 



0.2 



(a) Derived from the summation of columns on Table 2. 



Source: NYC (1983), Table 6-23. 



