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University Library, University of Illinois at Urbana-Champaign
Report to the Illinois Environmental Protection Agency based on macro-invertebrate sampling of 149 sites in July 1976 to evaluate the impact of 35 point sources, with additional sampling to evaluate agricultural non-point source pollution. The predominant stream classifications for sites sampled were "unbalanced" (47% of sites) and "semi-polluted (48% of sites).
The Mississippi is covered in the sections on Mississippi-Lower Rock River (pp. 49-53), Nauvoo (pp. 78-82), Big Rivers (pp. 98-103), Karst/Cave Area (pp. 122-126), and Illinois Ozarks (pp. 140-145). The Mississippi is also a prominent feature in several Natural Divisions mentioned throughout the inventory.
Initiative was to provide increased direct technical assistance and financial assistance over a three-year period to 12 communities along the Mississippi River dependent on the River for their public water supplies.
During the 1970s, the Great River Environmental Action Team conducted extensive assessments of the Mississippi River, in three sections. Navigation, recreation, wildlife and fisheries, cultural resources, and other aspects were examined.