Inland Empire Regional Composting Authority

Compost Process:

The entire composting process at the IERCF takes approximately 60 days. In the first few weeks of composting, temperatures are much higher due to the high level of microbial activity within the compost piles. Microbes break down the organic material transforming it into humus like compost. The material is then screened and aged (cured) for about a month allowing it to cool down and stabilize.
Aerated Static Pile (ASP) Composting is an EPA approved method of composting where air is forced through loosely piled organic feedstocks such as biosolids and green waste. The IERCF will use the ASP method of composting by drawing air though the compost piles with fans and exhausting the foul air through a biofilter. The biofilter will satisfy air regulations and control odor emissions.
Every year, the IERCF will produce approximately 225,000 cubic yards (90,000 tons) of compost. Parties interested in purchasing compost should contact the Sales Department, at (909) 993-1910 or visit us at www.ierca.org


Features:	Fully Enclosed 453,900 Sq Ft Building situated on 24 acres State of the art, subsurface aeration system (over 800,000 cfm) 12 Air Changes per Hour in Composting Area Biofilter (3 acres) for Odors and Air Emissions (per South Coast AQMD) Automation of Fans for pile Aeration based on temperature probes Variety of Automated Conveyor System	Biofilter Installation
Capacity:	Biosolids – 150,000 Tons/Year (75,000 each for LACSD and IEUA) Bulking Agents & Feedstocks (Manure, Green Waste, Etc.) – 150,000 Tons/Year	Air Exhault Fans
Product:	Class A Exceptional Quality Compost Sold in bulk to landscapers, farmers, nurseries and top soil blenders
Process Steps:	Receiving Hoppers, Scales Amendment Storage Pug Mill Mixing Pile Building Approximately 21 Days of “Active” composting Approximately 21 Days of Curing Product Transfer (conveyors and front end loaders) Screening Product Load Out	Air Ducts