Excerpt from Lake Michigan Water Quality Report: January Through December, 1983 Water Quality Summary, 1983 Introduction 6 Methods 8 Section A 9 Open Water Lake Survey 9 North Shore Lake Survey 13 South Shore Lake Survey 17. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Excerpt from Lake Michigan Water Quality Report: January Through December 1979 A summary of the annual water quality data obtained from the 1979 Lake Michigan Survey Program is presented in a Summary Table (table I). The bacterial and chemical data collected during 1979 when compared to the previous 10 years illustrate water quality improvement in southwestern Lake Michigan. The results for the 1979 survey season indicate a continued downward trend in total coliform levels for the North Shore and South Shore Surveys. Average levels for the South Shore Survey continue to remain high. However, the 1979 average was the lowest since 1975, which may indicate a general downward trend for the South Shore Survey Stations. Fecal coliform geometric mean values remain three to four times higher for the South Shore Surveys than for the North Shore. Geometric means for the North South Shore Surveys are well below the water quality standard limit of 20 per 100 ml. Fecal coliform geometric mean levels for 1979 vary little from those of the past ten years for the North and South Shore Surveys with no significant change apparent during this time. The Open Water Survey geometric means remain 0 per 100 ml. (figures 9 14) About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Excerpt from Lake Michigan Water Quality Report, 1988 Evaluation of the water quality of the southwest portion of Lake Michigan is based on standards as set by the Illinois Pollution Control Board (35 IL Adm Code Because it is a unique and invaluable resource, Lake Michigan is protected to a higher level than other lakes in the State. Its waters are required to meet: Lake Michigan Standards, General Use Standards and Public and Food Processing Nater Supply Standards. Additionally, a criterion for beach closure was also used in this evaluation (toph, The water quality of the Illinois area of Lake Michigan has improved substantially since the 19605 and 19705 due to diversion of municipal and industrial treated wastewater discharges away from Lake Michigan to the Des Plaines River Basin. Discharges along the Illinois shore now consist primarily of cooling water and some combined sewer overflows. Major sources of pollutants along the Illinois shore of Lake Michigan are atmospheric deposition, urban runoff and ih-place contaminants. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.