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Too much lead in the human body can cause serious damage to the brain, nervous system and red blood cells In babies and children, exposure to lead in drinking water above the action level can result in delays in physical and mental development.
Naperville, IL uses source water, also known as surface water. The city of Naperville purchases it’s water from the DuPage Water Commission, which is pumping water directly from Lake Michigan. (Prior to utilizing Lake Michigan water, Naperville’s water supply came from a network of 25 underground wells, some of which are still retained for emergency standby use)
It is considered by the Illinois EPA that all surface water sources of community water supply can be susceptible to potential pollution issues. The nature of sourcing surface water allows for the migration of contaminants into water intakes with only dilution, but no protection. For that reason, it is mandatory for all surface water supplies to be adequately treated in Illinois. Generally speaking the impacts are not considered a factor on the quality of water. However, there are certain times of the year when the contamination exists due to wet-weather flows and river reversals. Also, the placement of the crib structures can potentially attract gulls, waterfowl and terns that are known to frequent Lake Michigan and the Great Lakes area in general, which can thereby concentrate fecal deposits at the intake and compromise water quality. Conversely, the shore intakes are also highly susceptible to storm water runoff, marinas and shoreline point sources due to the influx of groundwater to Lake Michigan.
Click on each pollution source to see from which source contaminants come.
Runoff and Sprawl
Water contaminants may come from more than one source.
Naperville, IL, is located in both DuPage and Will Counties about 30 miles west of the Chicago Loop. The town was founded along the DuPage River by Joseph Naper in 1831, with the first map of the area in 1842. Naper was later elected president of the board when Naperville was incorporated in 1857. The Napers, along with the Hobsons, Scotts, and Paines, were among the first families to settle the area and primarily migrated from the U.S. Northeast. They were later joined by Germans, Scots, and English.
The earliest settlers to the area erected seven churches in the town of which four held most of the services in German. The town became an important stop at the crossroads of two of the main stage coach routes at the time which ran from Chicago to Ottawa and Galena. By 1832, Naperville had reached a population of 180 residents who began to establish stores, sawmills, gristmills, and the Pre-Emption House Hotel. Naperville became the seat for DuPage County when it was established in 1864.
Naperville saw economic growth over the next century, mostly due to its easy railroad connection to Chicago. North Central College relocated to the town in 1870 in an attempt to better serve members of the Evangelical Association of North America and the local community. Stone quarries flourished in the area and provided building materials for Chicago, specifically after the Chicago Fire of 1871. Even with this economic growth, Naperville did not organize into a city until 1890.
Research and development enterprises moved into Naperville during the mid to late-1900s. A residential building boom was led by Harold Moser and the first subdivision of Naperville was completed in 1956. By 1995, 8,000 building lots had been subdivided by Moser and over 3,500 homes became part of the city. Today, Naperville has a population of over 140,000 residents with its top employers consisting of Edward Hospital, Nicor Gas, and Alcatel-Lucent S.A, a France-based global telecommunications company.