Services --> Clean Water Act --> 503 Regulations --> Pollutant Limits
Part 503 Land Application Pollutant Limits for Sewage Sludge
  Ceiling Concentration Limits, mg/Kg a,b Pollutant Concentration Limits, mg/Kg a,c Cumulative Pollutant Loading Rate Limits (kilograms per hectare) Annual Pollutant Loading Rate Limits (kilograms per hectare per 365-day period)
Arsenic 75 41 41 2.0
Cadmium 85 39 39 1.9
Chromium 3,000 1,200 1,500 75
Copper 4,300 1,500 3,00 150
Lead 840 300 300 15
Mercury 57 17 17 0.85
Molybdenum 75 __d __d __d
Nickel 420 420 420 21
Selenium 100 36d 100 5.0
Zinc 7,500 2,800 2,800 140
Applies to: All sewage sludge that Is land applied Bulk sewage sludge and bagged sewage sludge e Bulk sewage sludge Bagged Sewage sludge e
Part 503 Table 1, 503.13 Table 3, 503.13 Table 2, 503.13 Table 4, 503.13
a Dry-weight basis
b All sewage sludge samples must meet the ceiling concentrations, at a minimum, to be eligible for land application (instantaneous values).
c Monthly average.
d EPA is re-examining these limits.
e Bagged sewage sludge is sold or given away in a bag or other container for application to the land.

Warning: include(../../../..//footer.php) [function.include]: failed to open stream: No such file or directory in /home/american/public_html/services/environmental/Clean_Water_ACT/503_Regulations/pollutant_limits.php on line 159

Warning: include(../../../..//footer.php) [function.include]: failed to open stream: No such file or directory in /home/american/public_html/services/environmental/Clean_Water_ACT/503_Regulations/pollutant_limits.php on line 159

Warning: include() [function.include]: Failed opening '../../../..//footer.php' for inclusion (include_path='.:/usr/lib/php:/usr/local/lib/php') in /home/american/public_html/services/environmental/Clean_Water_ACT/503_Regulations/pollutant_limits.php on line 159