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<sup>1</sup> Arithmetic mean concentrations; Reference: Minneapolis Public Works, City of Minneapolis Neighborhood Rain Barrel Partnership Project, 2008
 
<sup>1</sup> Arithmetic mean concentrations; Reference: Minneapolis Public Works, City of Minneapolis Neighborhood Rain Barrel Partnership Project, 2008
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<sup>2</sup> Highest geometric mean concentration reported; Reference: Roger T. Bannerman and Richard Dodds, Sources of Pollutants in Wisconsin Stormwater, 1992
 
<sup>2</sup> Highest geometric mean concentration reported; Reference: Roger T. Bannerman and Richard Dodds, Sources of Pollutants in Wisconsin Stormwater, 1992
  

Revision as of 15:36, 17 August 2016

Typical Roof Runoff Quality in Minneapolis and Wisconsin
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Constituent Minneapolis1 Wisconsin2
E. coli (#/100 mL) 764
Total Solids (mg/L) 126
Total Solids (mg/L) 10 19
Total Hardness (mg/L) 44
Total Nitrogen (mg/L) 0.421
Ammonia-N (mg/L) 0.268
Nitrate-N (mg/L) 0.586
Total Phosphorus (mg/L) 0.104 0.24
Total Dissolved Phosphorus (mg/L) 0.076 0.11
Soluble Reactive Phosphorus (mg/L) 0.065
Cadmium (mg/L) 0.0004
Copper (mg/L) 0.0075 0.01
Lead (mg/L) 0.0032 0.01
Zinc (mg/L) 0.101 0.363

1 Arithmetic mean concentrations; Reference: Minneapolis Public Works, City of Minneapolis Neighborhood Rain Barrel Partnership Project, 2008

2 Highest geometric mean concentration reported; Reference: Roger T. Bannerman and Richard Dodds, Sources of Pollutants in Wisconsin Stormwater, 1992

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