For the purpose of improving the understating of the effectiveness of BMPs, this database catalogues information on BMP effectiveness extracted from peer reviewed scientific literature between 2000 to 2022 conducted in the United States (USA). The database also consists of statistical analysis of pooled efficacy values and evaluates the relative effectiveness of different practices in reducing pollutant loads. The database provides a source of reference for water quality planning and implementation studies or projects. The synthesized values can also be used to test the accuracy of computer model predictions on the effectiveness of BMPs.