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| <h4>Soil Infiltration Testing </h4> | | <h4>Soil Infiltration Testing </h4> |
| <p>Infiltration tests must be undertaken at the location, depth and with a head of water that replicates the proposed design. </p> | | <p>Infiltration tests must be undertaken at the location, depth and with a head of water that replicates the proposed design. </p> |
| | {{:Infiltration: Testing}} |
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| <h4>Groundwater</h4> | | <h4>Groundwater</h4> |
| <p> The bottom of the infiltration BMP must ≥ 1 m vertically separated from the seasonally high water table, and underlying bedrock. This reduces the risk of contaminating groundwater and helps to ensure reliable infiltration rates throughout the year. </p> | | <p> The bottom of the infiltration BMP must ≥ 1 m vertically separated from the seasonally high water table, and underlying bedrock. This reduces the risk of contaminating groundwater and helps to ensure reliable infiltration rates throughout the year. </p> |
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| <clearFix></clearFix> | | <table> |
| <div class="column clearfix">
| | <table class = "table-responsive table table-striped"> |
| <table class="table table-bordered table-hover" > | |
| <caption><strong>Suggested safety factors to be applied when designing infiltration facilities</strong></caption> | | <caption><strong>Suggested safety factors to be applied when designing infiltration facilities</strong></caption> |
| <tr class="success"> | | <tr class="success"> |
| <th rowspan="2">Catchment area</th><th colspan="3">Consequence of failure</th> | | <th rowspan="2">Catchment area</th><th colspan="3" class="text-center">Consequence of failure</th> |
| <tr class="success"> | | <tr class="success"> |
| <th>No damage or inconvenience</th><th>Minor damage or inconvenience to external structures (e.g. ponding in parking lot)</th><th>Significant damage to buildings or infrastructure (e.g. flooding damage)</th> | | <th>No damage or inconvenience</th><th>Minor damage or inconvenience to external structures (e.g. ponding in parking lot)</th><th>Significant damage to buildings or infrastructure (e.g. flooding damage)</th></tr> |
| <tr><td> <100 m<sup>2</sup></td><td>1.5</td><td>2</td><td>10</td></tr> | | <tr><td> <100 m<sup>2</sup></td><td>1.5</td><td>2</td><td>10</td></tr> |
| <tr><td style="white-space: nowrap"> 100 - 1000 m<sup>2</sup><td>1.5</td><td>3</td><td>10</td></tr> | | <tr><td style="white-space: nowrap"> 100 - 1000 m<sup>2</sup><td>1.5</td><td>3</td><td>10</td></tr> |
| </table> | | </table> |