Blue Island

The town of Chicago offers continued monitoring intended for Cryptosporidium, Giardia and E. coli in the source water within its water top quality program. To date, Cryptosporidium has not been detected during these samples, but Giardia was detected this year in one raw pond water sample gathered in September 2010. Treatment processes have already been optimized to provide successful barriers associated with Cryptosporidium oocysts and Giardia cysts inside the source water, efficiently removing these microorganisms in the treatment procedure. By maintaining low turbidity through the removal of contaminants from the water, associated with Cryptosporidium and Giardia organisms getting into the drinking water system is reduced. In 2017, DWM has also continued monitoring for hexavalent chrome, also known as chromium-6. USEPA has not yet found a standard for chromium-6, a contaminant of interest which has both organic and industrial resources. Please address any kind of questions or concerns to DWM’s Water Quality Department at 312-742-7499. Info reports on the monitoring program for chromium-6 are posted on the City’s website which may be accessed at the subsequent address below: http://www.cityofchicago.org/city/en/depts/water/supp_info/water_ quality_resultsandreports/city_of_chicago_emergincontaminantstudy. html RESOURCE WATER ASSESSMENT OVERVIEW The Illinois ENVIRONMENTAL PROTECTION AGENCY implemented a Resource Water Assessment System (SWAP) to assist with watershed protection of public drinking water materials. The SWAP stocks potential sources of contaminants and determine the susceptibility of the resource water to contaminants. The Illinois ENVIRONMENTAL PROTECTION AGENCY has completed the origin Water Assessment System for our source. SOURCE WATER AREA The City of Chi-town utilizes Lake The state of Michigan as its source drinking water via two drinking water treatment plants. The Jardine Water Refinement Plant serves the northern areas of the town and suburbs, as the South Water Refinement Plant serves the southern areas of the town and suburbs. Pond Michigan is the just Great Lake that may be entirely contained inside the United States. It edges Illinois, Indiana, The state of Michigan, and Wisconsin, and it is the second-largest Wonderful Lake by quantity with 1, one hundred and eighty cubic miles of water and 1 / 3 largest by region. SUSCEPTIBILITY TO CONTAMINANTS The Illinois ENVIRONMENTAL PROTECTION AGENCY considers all surface area water sources of community water supply to be vulnerable to potential pollution complications. The very nature of surface water enables contaminants to move into the intake without protection the only dilution. This is the reason for required treatment of all surface area water supplies in Illinois. Chicago’s just offshore intakes are located far away, that shoreline effects are not usually regarded as a factor in drinking water quality. At peak times of the year, nevertheless, the potential for contamination is present due to wet-weather moves and river reversals. Besides, the placement from the crib structures might serve to attract waterfowl, gulls and terns that frequent the fantastic Lakes area, therefore concentrating fecal debris at the intake and therefore compromising the source drinking water quality. Conversely, the shore intakes are quite susceptible to storm drinking water runoff, marinas and shoreline point resources due to the influx of groundwater to the pond..

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