8 Ill. Adm. Code 900.814
Plan Updates
Section 900
Section 900.814 Plan Updates
a) The waste management plan shall be reviewed annually by the
livestock facility owner or operator and updated when there is a change in the
volume of livestock waste to be disposed of annually, calculated pursuant to
Section 900.804 of this Subpart, that will cause additional application land
not already included in the plan to be needed.
b) The waste management plan shall also be updated when at least
one of the following occurs:
1) The average Bray P1 or Mehlich test result for soil phosphorus
for an application field is greater than 300 pounds of elemental phosphorus per
acre, in which case a separate plan for that field shall be prepared pursuant
to Section 900.813 of this Subpart if application to that field is to continue;
2) A change in land that is available for livestock waste
application occurs, if the land is not currently included in the waste
management plan;
3) A change in the method of livestock waste disposal or
application occurs; or
4) A change in the crop to be grown on the application field
occurs, if the crop is not already included in the plan.