This document describes the methodology and reports the conclusions and recommendations for remedial measures resulting from the Menomonee River Basin studies. Pollutant contributions from land use activities to surface and groundwater, inputs from atmospheric sources and the impact of changing land uses on pollution loadings are reported. Parameters emphasized are suspended sediment, total phosphorus and lead. Simulated unit area loads were developed for twelve land uses (feed lots, wetlands, woodlands, park and recreation, row crops, industrial, commercial, high, medium and low density residential, land under development, and pastures and small grains). A relative hazard scale (logarithmic) was established. A discussion of the physical characteristics and of the composition and particle size distribution of soils and bottom and suspended sediments in the basin is presented.