Removal of leaf-litter may help municipalities reduce phosphorus loads. Catch-basin cleaning and street cleaning are two commonly used Best Management Practices that could be modified to remove leaves and qualify for additional load-reduction credits. This Data Release contains four tab-delimited .txt files containing additional information about the study area, characteristics of municipal street solids, and load-reduction estimates from increased catch basin and street cleaning practices that are not available in the associated report. This Data Release also contains a compressed file, "EngBrk_ModelArchive.7z", which archives the model developed and used for the project. The four .txt table files are: (1) "VT_LU_data.txt", which includes the area, in acres and percent, for each land-use type within the nine participating municipalities and within the Englesby Brook basin (based on the National Oceanic and Atmospheric Administration's (NOAA) 2006 C-CAP Regional Land Cover); (2) "CB_sample_characteristics.txt", which describes the physical characteristics of samples collected from piles of catch-basin solids for nine municipalities in this study (September to November 2017 and April to November 2018); (3) "SC_sample_characteristics.txt", which describes the physical characteristics of samples collected from piles of street-cleaning solids for nine municipalities in this study (September to November 2017 and April to November 2018); and (4) "Estimated P-load reductions.txt", which contains estimated phosphorus load-reduction credits by using individual Soil Water Assessment Tool (SWAT) drainage areas for street cleaning and street cleaning with leaf management practices for the seven participating Municipal Separate Storm Sewer Systems (MS4s) municipalities in northwestern Vermont. The cities of Barre and Montpelier currently do not have to meet MS4 permit requirements. Information from the NOAA's 2006 C-CAP Regional Land Cover (https://data.noaa.gov/dataset/dataset/noaas-coastal-change-analysis-program-c-cap-2006-regional-land-cover-data-coastal-united-state1) and the Vermont Center for Geographic Information (https://vcgi.vermont.gov/) were used to characterize land use within each of the nine municipalities in the central and northwestern Vermont, study area, and the partially urbanized Englesby Brook basin located in Burlington and South Burlington, Vermont, that drains into Lake Champlain. The compressed file "EngBrk_ModelArchive.7z" represents the model archive that contains 31 files associated with the Englesby Brook model using the Source Loading and Management Model for Windows (WinSLAMM) version 10.4.0.