Section 391.412 Phosphorus

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Illinois Administrative Code › Title 35 ENVIRONMENTAL PROTECTION › CHAPTER II: ENVIRONMENTAL PROTECTION AGENCY › Part 391 DESIGN CRITERIA FOR SLUDGE APPLICATION ON LAND › Section 391.412 Phosphorus

This text was captured on Aug 14, 2026. It is a snapshot, not a live feed, so check the official code before relying on it.

Text

Section 391

Section 391.412 Phosphorus

a) The phosphorus content of the soil may govern loading rates

for the sludge. It is recommended that the available phosphorus content in

soils and total phosphorus in the sludge be analyzed every 2 years.

b) After five years of sludge application the phosphorus level in

the soil shall be monitored and sludge application shall cease if the plant

available phosphorus content in the soil exceeds 400 pounds per acre for sandy

soils or 800 pounds for non-sandy soils.

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