CRC Street Sweep Eval 1999.pdf( 489.9 KB ) - Clearwater
CRC Street Sweep Eval 1999.pdf( 489.9 KB ) - Clearwater
CRC Street Sweep Eval 1999.pdf( 489.9 KB ) - Clearwater
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COOPERATIVE RESEARCH CENTRE FOR CATCHMENT HYDROLOGY<br />
Influence of Catchment Land-use:<br />
<br />
<br />
<br />
<br />
The fraction imperviousness of a catchment influences the runoff during storm events which influence the<br />
available energy for mobilisation of deposited gross pollutants.<br />
Commercial land-uses contribute larger loads of gross pollutants despite more intensive street sweeping<br />
frequencies.<br />
Relative gross pollutant loads generated from different land-uses show that commercial areas produce<br />
approximately twice the amount of gross pollutants than residential and three times as much as light<br />
industrial, despite a daily street sweeping regime in the commercial area compared to fortnightly in the<br />
residential and industrial areas.<br />
A number of transport factors are thought to also influence gross pollutant loads from different land-uses.<br />
Some of these factors include:-<br />
Number of entrances to the stormwater system,<br />
Fraction of catchment imperviousness,<br />
Extent of pervious area over which runoff needs to traverse towards the stormwater drainage system.<br />
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