METALS TABLES
                    PART 503 SLUDGE/BIOSOLIDS MARKETING RULE
Hazardous
inorganics
 Missouri Limits lb.
per acre
Before 1989
 Carcinogens by
inhalation
EPA 1989
 Proposed EPA Limits
lb.per acre
1989
 Final EPA Limits
lb. per acre
Arsenic
 no limit
 Yes
 12.5 lb
 36.59
Berylium
 no limit
 Yes
 no limit
 no limit
Cadmium
 18.0
 Yes
 16.0
 34.80
Chromium
 2,000.0
 Yes  - raising pH to
11-12 (lime
treatment) creates
chromium 6
 472.0
 no limit
Copper
 500.0
   41.0
 1,338.80
Lead
 2,000.0
   111.0
 267.76
Mercury
 no limit
   13.4
 15.17
Molybdenum
 no limit
   4.5
 no limit
Nickel
 500.0
 Yes
 69.9
 376.39
Selenium
 no limit
   28.5
 89.25
Zinc
 1,000.0
   151.0
 2499.0
Hazardous
inorganics
 Ceiling levels in
sludge/biosolids
503.13   - ppm
 Ceiling level in
surface disposal site
503.23  - ppm
 410 - 492 feet
from surface disposal
boundary - ppm
 82 -164 feet
from surface disposal
boundary - ppm
Arsenic
 75
 73
 62
 34
Berylium
 no limit
      
Cadmium
 85
      
Chromium
 no limit
 600
 450
 220
Copper
 4300
      
Lead
 840
      
Mercury
 57
      
Molybdenum
 75
      
Nickel
 420
 420
 420
 240
Selenium
 100
      
Zinc
 7500