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It frequently is 100 feet (30 m) thick and is typically found below elevations of 520 to 530 feet above sea level. It has been used as a water source in the Peoria area since at least 1892. By 1909, it was observed that groundwater levels at the North Field in Peoria fluctuated with the river stage in the Illinois River. The Sankoty aquifer ...
The Illinois Bureau of the Budget projects that the population could increase to about 910,000 people by 2020. [ citation needed ] An estimated 100,000,000 US gallons (380,000 kL) per day of groundwater is pumped from the aquifer to supply municipal, agricultural, commercial, industrial, and rural domestic users (Larson et al., 2003).
On October 9, 2009, the Illinois EPA on its website [99] released test results for the groundwater near the well that Crestwood used to obtain drinking water for its residents "The concentration of vinyl chloride found in the bedrock's groundwater between 39 and 49 feet below ground surface averaged 55.7 parts per billion (ppb), ten times the ...
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High levels of TCE and tetrachloroethylene can be found in groundwater drawn as far as two kilometers from the site. [19] [20] In 1998, the View-Master factory supply well in Beaverton, Oregon was found to have been contaminated with high levels of TCE. It was estimated that 25,000 factory workers had been exposed to it from 1950 to 2001.
The law was based on the idea that groundwater could best be managed at the local level, and it called for newly formed local agencies to gradually adopt measures to address chronic declines in ...