Changes

<p>Compost shall be stable, humus-like material produced from the aerobic decomposition of organic feedstocks, composted and cured until maturity.  Compost shall be produced under the Compost Council of [http://www.compost.org/CQA-En.html Canada’s Compost Quality Alliance] (CQA) certification program through testing by an [http://www.omafra.gov.on.ca/english/crops/resource/soillabs.htm| OMAFRA accredited soil laboratory], and certified as category ‘AA’ under [https://www.ontario.ca/page/ontario-compost-quality-standards#section-2 Ontario Compost Quality Standards.]</p>

[[File:Wood based compost.jpg|thumb|wood based compost]]  

STEP are currently undertaking research into the quality of compost for use in LID installations.

{|class="wikitable"

Compost shall be stable, humus-like material produced from the aerobic decomposition of organic feedstocks, composted and cured until maturity.  Compost shall be produced under the Compost Council of [http://www.compost.org/CQA-En.html Canada’s Compost Quality Alliance] (CQA) certification program through testing by an [http://www.omafra.gov.on.ca/english/crops/resource/soillabs.htm| OMAFRA accredited soil laboratory], and certified as category ‘AA’ under [https://www.ontario.ca/page/ontario-compost-quality-standards#section-2 Ontario Compost Quality Standards.]

|+ Specifications for category 'AA' product under Ontario Compost Quality Standards

 

|-  

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!style="background: darkcyan; color: white"|Parameter

'''Specifications for category 'AA' product under Ontario Compost Quality Standards'''

!style="background: darkcyan; color: white"|Acceptable range

<div class="mw-collapsible-content">

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!Parameter

!Acceptable range

|-

|-

|pH||5.5 - 8.5

|[[pH]]||5.5 - 8.5

|-

|-

|Soluble Salts (EC)||< 4 mS/cm

|[[Soluble Salts]] (EC)||< 4 mS/cm

|-

|-

|Moisture Content||< 50% by weight

|Moisture Content||< 50% by weight

|-

|-

|Organic matter||> 30% by dry weight

|[[Organic matter]]||> 30% by dry weight

|-

|-

|C/N ratio||12 to 22

|C/N ratio||12 to 22

|Zinc||≤ 500 mg/kg dry weight

|Zinc||≤ 500 mg/kg dry weight

|}

|}

 

</div></div>

<tr><td>Mercury</td><td>≤ 0.8 mg/kg dry weight</td></tr>

<tr><td>Zinc</td><td>≤ 500 mg/kg dry weight</td></tr><tr>

</table>

[[Category:materials]]

[[Category:materials]]