Changes

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|+'''Permeable Pavements: Key Components, Descriptions and Routine I&M Requirements'''

|+'''Green Roofs: Key Components, Descriptions and Routine I&M Requirements'''

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!style="width: 500px"|Comnponent  

!style="width: 500px"|Comnponent  

!style="width: 550px"|<span style="color:red">('''Fail''')</span> Photo Example

!style="width: 550px"|<span style="color:red">('''Fail''')</span> Photo Example

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|'''[[Permeable pavements: Sizing|Contributing Drainage Area (CDA)]]'''

|'''Perimeter'''

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Area(s) from which runoff directed to the BMP originates; includes the pavement itself and any adjacent impermeable pavement or roofs that drain to it.

Separates the green roof from the roof edges and other structures; kept clear of [[vegetation]] and natural debris as a fire prevention measure. Parapets or other wind break structures may also be present around the perimeter to help prevent wind scour of growing media.

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*Remove trash, debris and sediment from pavements (biannually to quarterly) and eavestroughs (annually);

*Check for damage or vegetation;

*Replant or seed bare soil areas as needed.

*Remove any vegetation or natural debris

annually to biannually.

|[[File:CDA Pass p.p.JPG|300px|thumb|center|CDA has not changed in size or land cover. Sediment, trash or debris is not accumulating and point sources of contaminants are not visible.]]  

|[[File:CDA Pass p.p.JPG|300px|thumb|center|CDA has not changed in size or land cover. Sediment, trash or debris is not accumulating and point sources of contaminants are not visible.]]  

|[[File:CDA Fail p.p.JPG|280px|thumb|center|Size of the CDA has changed from design assumptions (i.e. large asphalt area drains to a small portion of the permeable pavement). Evidence of surface ponding is visible.]]  

|[[File:CDA Fail p.p.JPG|280px|thumb|center|Size of the CDA has changed from design assumptions (i.e. large asphalt area drains to a small portion of the permeable pavement). Evidence of surface ponding is visible.]]  

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|'''[[Pretreatment]]'''

|'''[[Inspection and Maintenance:Growing medium/filter bed|Growing medium/filter bed]]'''

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Devices or features that retain trash, debris and sediment; help to extend the [[Cost analysis resources|operating life cycle]]; examples are eavestrough screens, [[Pretreatment|catch basin]] inserts and sumps, [[oil and grit separators]], [[inlets|geotextile-lined inlets]], [[Gravel diaphragms|gravel trenches]], [[Vegetated filter strips|grass filter strips]] and [[forebays]].

Devices or features that retain trash, debris and sediment; help to extend the [[Cost analysis resources|operating life cycle]]; examples are eavestrough screens, [[Pretreatment|catch basin]] inserts and sumps, [[oil and grit separators]], [[inlets|geotextile-lined inlets]], [[Gravel diaphragms|gravel trenches]], [[Vegetated filter strips|grass filter strips]] and [[forebays]].