Changes

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<gallery mode="packed" widths=300px heights=300px>

flood-test-bioretention.jpg | Flood test for a bioretention LID facility.

flood-test-bioretention.jpg | Flood test for a bioretention LID facility. (Photo Source: CVC, n.d.)

Flood-test-permeable-pavers.jpg | Flood test for permeable pavers.

Flood-test-permeable-pavers.jpg | Flood test for permeable pavers. (Photo Source: CVC, 2013)

Double-ring-infiltrometer.png | Double-ring infiltrometer.

Double-ring-infiltrometer.png | Double-ring infiltrometer.

Using rainfall and water level data can provide an understanding of drawdown times after variously sized storms.

Using rainfall and water level data can provide an understanding of drawdown times after variously sized storms.

[[File:Large bioretention Meadows in the Glen .JPG|300px|thumb|right|rainfall data and water level measurements can be used to assess infiltration performance.]]

[[File:Large bioretention Meadows in the Glen .JPG|300px|thumb|right|rainfall data and water level measurements can be used to assess infiltration performance. (Photo Source: CVC, 2015)]]

'''Long-term Monitoring (Level 4)'''<br>

'''Long-term Monitoring (Level 4)'''<br>

High-intensity monitoring is a comprehensive but expensive approach to assessing peak flow reduction and water volume reduction during natural runoff events. These reductions can be quantified by completing a water budget during natural storm events, specifically through the measurement of inflow and outflow. Pollutant load reductions can also be quantified with the appropriate technology. Long-term monitoring is especially recommended if the LID feature that is the subject of the test is the first of its kind in its given jurisdiction, if geologic conditions pose a concern, or if the feature is being implemented to protect sensitive and significant natural features.

High-intensity monitoring is a comprehensive but expensive approach to assessing peak flow reduction and water volume reduction during natural runoff events. These reductions can be quantified by completing a water budget during natural storm events, specifically through the measurement of inflow and outflow. Pollutant load reductions can also be quantified with the appropriate technology. Long-term monitoring is especially recommended if the LID feature that is the subject of the test is the first of its kind in its given jurisdiction, if geologic conditions pose a concern, or if the feature is being implemented to protect sensitive and significant natural features.