Line 1: |
Line 1: |
| <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
| | |
| |-
| | <div class="toccolours mw-collapsible mw-collapsed"> |
| !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"> |
| | {| class="wikitable" |
| | !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 |
Line 24: |
Line 28: |
| |- | | |- |
| |Foreign Material||< 1.0% by dry weight > 3 mm<br>< 0.5% plastic by dry weight<br> no foreign matter > 25 mm per 500 mL<br> no sharp foreign matter that could cause harm to humans or animals. | | |Foreign Material||< 1.0% by dry weight > 3 mm<br>< 0.5% plastic by dry weight<br> no foreign matter > 25 mm per 500 mL<br> no sharp foreign matter that could cause harm to humans or animals. |
| | |- |
| | |Arsenic||≤ 13 mg/kg dry weight |
| | |- |
| | |Cadmium||≤ 3 mg/kg dry weight |
| | |- |
| | |Chromium||≤ 210 mg/kg dry weight |
| | |- |
| | |Cobalt||≤ 34 mg/kg dry weight |
| | |- |
| | |Copper||≤ 100 mg/kg dry weight |
| | |- |
| | |Lead||≤ 150 mg/kg dry weight |
| | |- |
| | |Mercury||≤ 0.8 mg/kg dry weight |
| | |- |
| | |Molybdenum||≤ 5 mg/kg dry weight |
| | |- |
| | |Nickel||≤ 62 mg/kg dry weight |
| | |- |
| | |Selenium||≤ 2 mg/kg dry weight |
| | |- |
| | |Sodium, Percent Saturation||< 2% |
| | |- |
| | |Zinc||≤ 500 mg/kg dry weight |
| |} | | |} |
| | | </div></div> |
| <table class = "table table-striped table-responsive">
| |
| <caption><strong>Specifications for category 'AA' product under Ontario Compost Quality Standards</strong></caption>
| |
| <tr><td>Arsenic</td><td>≤ 13 mg/kg dry weight</td></tr>
| |
| <tr><td>Cadmium</td><td>≤ 3 mg/kg dry weight</td></tr>
| |
| <tr><td>Chromium</td><td>≤ 210 mg/kg dry weight</td</tr>
| |
| <tr><td>Cobalt</td><td>≤ 34 mg/kg dry weight</td></tr>
| |
| <tr><td>Copper</td><td>≤ 100 mg/kg dry weight</td></tr>
| |
| <tr><td>Lead</td><td>≤ 150 mg/kg dry weight</td></tr>
| |
| <tr><td>Mercury</td><td>≤ 0.8 mg/kg dry weight</td></tr>
| |
| <tr><td>Molybdenum</td><td>≤ 5 mg/kg dry weight</td></tr>
| |
| <tr><td>Nickel</td><td>≤ 62 mg/kg dry weight</td>
| |
| </tr><tr><td>Selenium</td><td>≤ 2 mg/kg dry weight</td></tr><tr>
| |
| <td>Sodium, Percent Saturation</td><td>< 2%</td></tr>
| |
| <tr><td>Zinc</td><td>≤ 500 mg/kg dry weight</td></tr><tr>
| |
| </table> | |
| [[Category:materials]] | | [[Category:materials]] |
| | [[Category: testing]] |