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− | These methods are approved for calculating pollutant reductions | + | <!--[[File:Sweeping pile.jpg|300px|thumb|alt=image of leaf pile|<font size=3>Image of leaf pile. Image [https://dnrec.alpha.delaware.gov/waste-hazardous/yard-waste/ Delaware Department of Natural Resources].</font size>]]--> |
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+ | This page provides a summary of methods that can be used to quantify pollutant reductions from street sweeping. | ||
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+ | ==Approved methods for calculating pollutant reductions from street sweeping== | ||
+ | These methods are approved for calculating pollutant reductions. Guidance for calculating pollutant reduction is contained in this manual. | ||
*'''Dry mass measurement'''. This method involves weighing the total (wet) mass of street sweepings and collecting samples for calculating the dry mass as a percent of total (wet) mass. The dry mass represents total solids collected. To calculate total phosphorus, dry mass is multiplied by a conversion factor. | *'''Dry mass measurement'''. This method involves weighing the total (wet) mass of street sweepings and collecting samples for calculating the dry mass as a percent of total (wet) mass. The dry mass represents total solids collected. To calculate total phosphorus, dry mass is multiplied by a conversion factor. | ||
*'''Wet mass measurement'''. This method involves weighing the total (wet) mass of street sweepings and multiplying by conversion factors to calculate total solids or total phosphorus. | *'''Wet mass measurement'''. This method involves weighing the total (wet) mass of street sweepings and multiplying by conversion factors to calculate total solids or total phosphorus. | ||
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*'''Volume'''. Calculating pollutant reduction based on volume of material collected requires establishing relationships between volume and dry mass. The methods and procedures for establishing these relationships must be fully documented for permit compliance. | *'''Volume'''. Calculating pollutant reduction based on volume of material collected requires establishing relationships between volume and dry mass. The methods and procedures for establishing these relationships must be fully documented for permit compliance. | ||
*'''Modeling'''. Models other than WINSLAMM and P8 may be acceptable, but MPCA must be contacted if the model results are used for permit compliance. | *'''Modeling'''. Models other than WINSLAMM and P8 may be acceptable, but MPCA must be contacted if the model results are used for permit compliance. | ||
− | '''Empirical methods'''. Empirical methods other than those summarized in [[Survey of street sweeping crediting approaches]] may be acceptable. MPCA must be contacted for permit compliance. | + | *'''Empirical methods'''. Empirical methods other than those summarized in [[Survey of street sweeping crediting approaches]] may be acceptable. MPCA must be contacted for permit compliance. |
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+ | <noinclude> | ||
+ | [[Category:Level 3 - Best management practices/Nonstructural practices/Street sweeping]] | ||
+ | [[Category:Level 2 - Pollutants/Pollutant removal]] | ||
+ | </noinclude> |
This page provides a summary of methods that can be used to quantify pollutant reductions from street sweeping.
These methods are approved for calculating pollutant reductions. Guidance for calculating pollutant reduction is contained in this manual.
The following methods may be acceptable if appropriate protocol are followed. This manual does not provide guidance for applying these methods. Pollutant reductions calculated with these methods must be approved by the MPCA if used for permit compliance.
This page was last edited on 6 December 2022, at 19:56.