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Users should pay particular attention to version identification or dates of publication of documents retrieved. Earlier, possibly superseded, versions of documents are also stored here. TitleIllinois EPA Clean Lakes Program: Clean Lakes Study Review and Implementation Report for Lake Hillsboro, Montgomery County, Illinois
- Over the 89-year history of Lake Hillsboro, approximately 36,500 tons of soil has been eroded from the shoreline areas. These shoreline erosion estimates equate to an average annual loading of approximately 410 tons/year. The total tons of delivered soil were calculated using a dry unit weight of 100 pounds per cubic-ft for undisturbed, native soil densities. The estimated loading to Lake Hillsboro based on the 2007 shoreline survey was estimated by extending the eroded bank into the lake at a projected slope of 3:1 (3 foot horizontal to 1 foot vertical) to form a typical triangular end area. Then, the length of the eroded shoreline in linear feet was multiplied by the projected end area for each degree of classification of erosion.
Originally Deposited as: 21118
Published By: Phone Number: Language(s): EN-English Volume or Year: 2007 Number or Issue: July Date Created: 07 25 2007 Date Last Modified: 11 06 2009 Librarian Remarks: |
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