Stream Temperature Modeling of Miller Creek, Duluth, Minnesota

This report summarizes a modeling study of heat loading and stream temperature in Miller Creek in support of the MPCA Miler Creek temperature TMDL. The MINUHET surface runoff modeling tool was used to characterize runoff temperatures for typical residential and commercial watersheds for the continuous period June 15 to September 15, 2008. These results were then generalized to the entire Miller Creek watershed using runoff volumes from a SWMM model developed at SAFL. These simulated runoff temperatures and volumes were then used to estimate point source heat loadings to Miller Creek for the same time period.