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Over the past decade, the Project Team has determined that many users of the database are interested in the bottom-line on BMP performance and that there are frequently asked questions regarding specific subsets of data. This page enables downloads of a variety of summary information on BMP performance, along with custom database queries providing summary information on frequently asked questions. If you have a specific question that you would like to ask, please contact us.
 
Document Summary (PDF) Description
Table of Performance by BMP Category and Common Pollutant Type This 1-page tabular summary provides the median influent and effluent event mean concentrations, 95th percentile values and number of studies by commonly reported constituent and BMP category.
Analysis of BMP Performance 2008 This 20-page document provides a summary of BMP performance by constituent type for BMP categories containing adequate data to develop statistical summaries. Summary data is provided for each constituent in box and whisker plots and summary tables.
Statistical Summaries (2007) For mid-intensity users, two tables of summary data have been developed. Click this link to obtain more information on these summaries.
Summary of Cost Data (2007) This spreadsheet summarizes the cost data currently included in the database. Provision of cost data is optional for data providers and is an on-going data need.
Summary of Non-structural BMP Data (2008) This Excel file summarizes non-structural BMP data currently included in the database. Additional non-structural performance data are needed; existing data are primarily derived from the National Urban Runoff Program (NURP).
Summary of Bacteria Data (2008) (Excel Workbook) In May 2008, a summary and analysis of bacteria data in the BMP Database was published in Stormwater Magazine (http://www.stormh2o.com/sw_0805_can.html). An Excel workbook summarizing the underlying bacteria data included in the analysis for the paper can be downloaded, as well as the underlying paper.
Summary of Nutrient Data (2008) Coming soon! This spreadsheet summarizes nutrient data currently included in the database.
Summary of TSS Data (2008) Coming soon! This spreadsheet summarizes total suspended solids data currently included in the database.
Summary of Volume Reduction (2008) Coming soon! This spreadsheet summarizes flow data for each BMP study analyzed.
List of Data Providers (2007)
Studies Removed from the BMP Database in 2009

This table provides a list of data providers and the number of studies that they have provided to the database. A statement regarding studies removed from the database in 2009 is also provided.
Table of BMPs by State This 1-page table provides the numbers of various BMP types included in the database by state.