504 resultados para Illinois Historic Preservation Agency. Division of Preservation Services
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"IEPA/BOW/03-013"--Cover.
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"32946"--Colophon.
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"February 1994."
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"Prepared and coordinated under the direction of Robert Ferber, associate director of the Bureau of Business and Economic Research, University of Illinois."
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The purpose of this fact sheet is to provide a summary of literature research on the use of well "shooting" or blasting technology in Northern Illinois. Water well shooting or blasting is done to increase water yield from a sandstone aquifer for a particular water supply well ... The Lake County Health Department (LCHD) detected a chemical, vinyl chloride -- from a family of chemicals known as volatile organic compounds (VOCs) -- in some private wells in the unincorporated Hillcrest Subdivision near Wauconda, through routine well testing done in the fall of 2003. The LCHD presented these findings to the public at a January 13, 2004 meeting. The concern was raised at the public meeting that recent subsurface water well "shooting" or blasting techniques, performed in the deep sandstone aquifer (800 to 1,000 feet below ground surface), in the borehole of a community water supply (CWS) well in the area, might have impacted the shallow aquifer in such a way as to contribute to private well contamination under investigation in the Hillcrest Subdivision.
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"9/10"--Colophon.
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"March, 2005."
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On February 18, 2011, Caterpillar Tractor Company, Inc. (CAT) was notified by the Woodford County Emergency Management Agency that residents along Ten Mile Creek had noticed a fuel odor. CAT personnel checked outfalls on the bluff below and the Proving Grounds fuel station and discovered some diesel fuel seeping into a ravine which continues to Ten Mile Creek. An initial investigation around the fueling facility revealed a diesel leak in an underground line that feeds the fuel dispensers. Diesel fuel is used on the Proving Grounds property to power the earth-moving equipment being tested there. At the time the leak was found, CAT began excavating to remove the source and to find the extend of the leak. The fuel had followed a down-hill slope to a ravine on CAT property, ran down the ravine and impacted Ten-Mile Creek (about one-half mile away) with a visible sheen of diesel fuel on top of the water.
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"Submitted pursuant to: Section 8-405.1 of the Revised Public Utilities Act."
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Project no. 20.070B
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Caption title.
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Illinois EPA's initial evaluation of this site revealed problems such as erosion, exposed waste, low areas at the surface that allowed water to pond, and leachate seeps water that becomes contaminated after contact with landfill waste).
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Updates on-site environmental investigations by the PREMCOR Refining Group at the former Clark-Blue Island Refinery which began operations as the Great Lakes Refinery in the mid 1920s and continued operating at the Blue Island (Ill.) site until PREMCOR closed the refinery in 2001. Valero Energy Corporation purchased PREMCOR on Sept. 1, 2005.
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"May 2008."
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"August 2010."