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<th>Practice #</th>
 
<th>Practice #</th>
 
<th>Description</th>
 
<th>Description</th>
<th>Approx passes per year*</th>
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<th>Approx passes per year<sup>1</sup></th>
<th>TSS Removal (%)**</th>
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<th>TSS Removal (%)<sup>2</sup></th>
<th>TN Removal (%)**</th>
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<th>TN Removal (%)<sup>2</sup></th>
<th>TP Removal (%)**</th>
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<th>TP Removal (%)<sup>2</sup></th>
 
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<td>SCP-3</td>
 
<td>SCP-3</td>
 
<td>AST- 1 P2W</td>
 
<td>AST- 1 P2W</td>
<td>25</td
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<td>25</td>
 
<td>11</td>
 
<td>11</td>
 
<td>2</td>
 
<td>2</td>
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<td>7</td>
 
<td>7</td>
 
<td>1</td>
 
<td>1</td>
<th>4</td>
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<td>4</td>
 
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<font size=1>*Depending on the length of the winter shutdown, the number of passes/yr may be 10 to 15% lower than shown.<br>
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<font size=1><sup>1</sup>Depending on the length of the winter shutdown, the number of passes/yr may be 10 to 15% lower than shown.<br>
** % removal represents the proportion of the impervious surface unit area load removed<br>
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<sup>2</sup>% removal represents the proportion of the impervious surface unit area load removed<br>
 
Table abbreviations: AST: Advanced Sweeping Technology ; MBT: Mechanical Broom Technology ; 2PW: 2 passes per week; 1PW: 1 pass every week; 1P2W: 1 pass every 2 weeks; 1P4W: 1 pass every 4 weeks; 1P8W: 1 pass every 8 weeks; 1P12W: 1 pass every 12 weeks</font size>
 
Table abbreviations: AST: Advanced Sweeping Technology ; MBT: Mechanical Broom Technology ; 2PW: 2 passes per week; 1PW: 1 pass every week; 1P2W: 1 pass every 2 weeks; 1P4W: 1 pass every 4 weeks; 1P8W: 1 pass every 8 weeks; 1P12W: 1 pass every 12 weeks</font size>
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[[Category:Level 3 - General information, reference, tables, images, and archives/Tables/Pollution prevention and source control]]
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Latest revision as of 12:04, 7 August 2022

Summary of Chesapeake Bay Program street sweeping crediting.
Link to this table

Pollutant Reductions Associated with Different Street Cleaning Practices (SCP)
Practice # Description Approx passes per year1 TSS Removal (%)2 TN Removal (%)2 TP Removal (%)2
SCP-1 AST- 2 PW 100 21 4 10
SCP-2 AST- 1 PW 50 16 3 8
SCP-3 AST- 1 P2W 25 11 2 5
SCP-4 AST- 1 P4W 10 6 1 3
SCP-5 AST- 1 P8W 6 4 0.7 2
SCP-6 AST- 1 P12W 4 2 0 1
SCP-7 AST- S1 or S2 15 7 1 4
SCP-8 AST- S3 or S4 20 10 2 5
SCP-9 MBT- 2PW 100 0.7 0 0
SCP-10 MBT- 1 PW 50 0.5 0 0
SCP-11 MBT- 1 P4W 10 0.1 0 0

1Depending on the length of the winter shutdown, the number of passes/yr may be 10 to 15% lower than shown.
2% removal represents the proportion of the impervious surface unit area load removed
Table abbreviations: AST: Advanced Sweeping Technology ; MBT: Mechanical Broom Technology ; 2PW: 2 passes per week; 1PW: 1 pass every week; 1P2W: 1 pass every 2 weeks; 1P4W: 1 pass every 4 weeks; 1P8W: 1 pass every 8 weeks; 1P12W: 1 pass every 12 weeks

This page was last edited on 7 August 2022, at 12:04.