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At a minimum, temperatures are taken three times per week at two locations per <br />windrow. It is important to understand that the temperature typically changes with <br />depth in the windrow; the outer two feet of the pile is typically the hottest due to <br />readily available oxygen. BFI's experience shows that windrow temperatures are <br />resistant to seasonal temperature variations, except in climates with sustained <br />periods below 32'F. <br /> <br />Moisture Content <br /> <br />Moisture content of each initial windrow will be determined. The results of this test <br />indicate the beginning moiSture, referred to as "solids content". BFi will manage the <br />windrows so each windrow will begin with a solids content in the 40%-50% solids <br />range. After initial windrow construction, moisture contents of the piles will be taken <br />on an as-needed basis, however, each windrow will have at least one moisture <br />analysis performed per month. MoiSture analysis conducted on initial windrows and <br />during the composting process will always be conducted in house using American <br />Standard Testing Method (ASTM). <br /> <br />Completing this analysis in-house provides an accurate measure of the moisture and <br />gives the manager immediate feedback so a process management decision can be <br />made. Occasionally samples will be sent to an outside laboratory for analysis, <br />however this will be the exception, not the no,¥~. <br /> <br />COmposting Process Time <br /> <br />A typical composting cycle at OMCF ranges from 120-180 days and is broken down <br />into the following.distinct operating activities: <br /> <br /> ACTIVin:: · :DUP, ATIO:N <br /> Yard waste is received, <br /> ground and incorporated <br /> into a windrow 0-2 days <br /> Active composting period 100 days <br /> Curing period 30 days <br /> Screening and stocage 0-60 days <br /> <br /> 6 <br /> <br /> <br />