SOLID WASTE PROCESSING AND DISPOSAL
(Rule 1200-01-07-.11, continued)
Compost from facilities subject to a full permit in this rule must meet the appropriate criteria for “compost disinfection” as defined in definitions at rule 1200-01-07-.01.
Buffer Zone Standards for Siting New Facilities - All waste management areas shall be located so as to conform to the distance standards at rule 1200-01-07-.04(3)(a).
Classification of Compost - Compost shall be classified based on type of waste processed, product maturity, amount of foreign material, and the concentration of heavy metals.
Type of waste processed
Landscaping waste only
Landscaping waste and manure
Solid waste (may include sewage, sludge, and other solid waste)
Mature compost is a highly stabilized compost material that has been exposed to prolonged periods of decomposition. It will not reheat upon standing to greater than 20o C above ambient temperature. The material should be brown to black in color. This level of maturity is indicated by a reduction of organic matter of greater than 60 percent.
Semi-mature compost is compost material that is at the mesophilic stage. It will reheat upon standing to greater than 20o C above ambient temperature. The material should be light to dark brown in color. This level of maturity is indicated by a reduction of organic matter of greater than 40 percent but less than or equal to 60 percent.
Fresh compost is compostable material that has been through the thermophilic stage and has undergone partial decomposition. The material will reheat upon standing to greater than 20o C above ambient temperature. It has beneficial use, but proper care is needed as further
Compost shall be classified as either Type A Compost or Type B Compost
according to its metal content characterization as concentrations in finished compost shall not exceed Type B Compost below:
shown in this part.
concentrations shown in
decomposition and stabilization will occur. indicated by a reduction of organic matter of less than or equal to 40 percent.
This level greater than
TYPE A COMPOST
TYPE B COMPOST
May, 2010 (Revised)