MSRC2019: Mass, moisture, nitrogen, and phosphorus in street sweepings collected from five cities in the Twin Cities Metropolitan Area, Minnesota



Quality of many urban water bodies is impaired because of phosphorus (P) loading from stormwater runoff. Trees near impervious surfaces contribute significantly to this P loading. Mounting evidence indicates that street sweeping, by removing nutrient-rich litterfall from streets, can effectively reduce inputs of pollutants to stormwater and reduce maintenance of downstream BMPs. Yet, street sweeping remains an underdeveloped BMP for P source reduction, as currently there is no easily implementable method for crediting sweeping practices that is approved by the Minnesota Pollution Control Agency (MPCA). Thus, water quality credits for street sweeping practices are typically not applied to permit conditions such as Total Maximum Daily Loads (TMDL) Waste Load Allocations in Minnesota. Through a UMN-MPCA-city partnership, we collected data on street sweeping loads including: sweeper volume, wet mass of solids, dry mass of solids, and nitrogen and phosphorus concentrations in sweepings and loads removed by different street sweeper types throughout the snow-free season (spring, summer, fall), across the range of tree canopy covers and species composition typical of Minnesota’s cities. Partner cities included Forest Lake, Minneapolis, Prior Lake, Roseville, and Shoreview.

The 'MSRC2019.csv' file contains data on street sweeping routes; canopy cover over routes; sweeping load wet and dry mass; street sweeping total phosphorus, total nitrogen, and total organic carbon concentrations from street sweeping operations in five cities in the Twin Cities Metropolitan Area, Minnesota. The 'MSRC2019_Metadata.csv' file contains Metadata describing variables, units, description of variables, and calculations (if applicable). The 'Readme_MSRC2019_MSRC2019_Metadata.txt' is a readme file with additional information about the study.

Funding information
Sponsorship: This project was supported by the Minnesota Stormwater Research and Technology Transfer Program administered by the University of Minnesota Water Resources Center through an appropriation from the Clean Water Fund established by Minnesota Clean Water Land and Legacy Amendment and from the Minnesota Stormwater Research Council with financial contributions from: Capitol Region Watershed District, Comfort Lake-Forest Lake Watershed District, Mississippi Watershed Management Organization, Nine Mile Creek Watershed District, Ramsey-Washington Metro Watershed District, South Washington Watershed District, City of Edina, City of Minnetonka, City of Woodbury, Wenck Associates, Minnesota Cities Stormwater Coalition. Additional funding for analysis of Forest Lake sweepings came from the City of Forest Lake and the Comfort Lake-Forest Lake Watershed District, and for analysis of Prior Lake sweepings from the Environmental Protection Agency.
Date made available2020
PublisherData Repository for the University of Minnesota
Date of data productionAug 9 2010 - Nov 18 2019

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