Illinois Administrative Code
Title 35 - ENVIRONMENTAL PROTECTION
Part 830 - STANDARDS FOR COMPOST FACILITIES
Subpart E - QUALITY OF END-PRODUCT COMPOST
Section 830.503 - Performance Standards for General Use Compost

a) Must be free of any materials which pose a definite hazard to human health due to physical characteristics, such as glass or metal shards;

b) Must not contain man-made materials larger than four millimeters in size exceeding 1% of the end-product compost, on a dry weight basis;

c) Must have a pH between 6.5 and 8.5;

d) Must have reached stability, as demonstrated by one of the methods prescribed in Section 830.Appendix B;

e) Must not exceed, on a dry weight basis, the inorganic concentrations set forth in Section 830.Table A; and

f) Must not contain fecal coliform populations that exceed 1000 MPN per gram of total solids (dry weight basis), or Salmonella species populations that exceed 3 MPN per 4 grams of total solids (dry weight basis).