Search this site Link to Search page.

WATER PURIFICATION

 
Water Plant Operations
Building a New Clearwell
and Pump Stations
Drinking Water Quality Report
Protecting Against
Backflow Contamination
Pamphlet
Lead Awareness
Water T&D
Outside-the-City
Water Customers
Water Conservation
Lake Springfield
Photos/Videos/Literature
Comment? Question?
Problem?
Report It Here

Lake Springfield is the source of Springfield's domestic water supply, providing drinking water to approximately 147,750 people who, altogether, use an average of about 21 million gallons of water each day. Water taken from the lake undergoes a rigorous purification and testing process—to ensure it is free of harmful bacteria and particulate matter—before being distributed for domestic use to the utility's water customers.

Drinking Water Quality

The Illinois Environmental Protection Agency considers all surface water sources of community water supply to be susceptible to potential pollution problems; hence, the reason for mandatory treatment for all surface water supplies in Illinois. Mandatory treatment includes coagulation, sedimentation, filtration, and disinfection. Causes of pollution to lakes include nutrients, siltation, suspended solids, and organic enrichment. Primary sources of pollution include agricultural runoff, land disposal (septic systems), and shoreline erosion.

Throughout the water purification process, chemists and plant operators at the CWLP Water Purification Plant perform approximately 70 analytical tests on the purified water each day to ensure it meets or exceeds Illinois EPA standards for microbiological and chemical content.

Many samples also undergo other chemical analyses to ensure that the product leaving the Purification Plant will be of the highest possible quality. Altogether the levels of about 150 different chemicals and water quality parameters are checked and the analytical results are compared to the maximum contaminant level (MCL) allowed for chemicals by the IEPA. As of the most recent test dates, in all cases, chemical levels in Springfield's drinking water fell below the MCLs established by the IEPA.

Among the chemicals tested for are: alachlor, ammonia, arsenic, atrazine, barium, benzene, calcium, carbon tetrachloride, chlordane, chlorine, cyanide, DDT, heptachlor, iron, lead, lindane, magnesium, manganese, mercury, nickel, nitrate, selenium, sodium, sulfate, vinyl chloride, and zinc.

Each spring, CWLP prepares a Water Quality Report for our customers detailing the results of drinking water tests performed during the preceding year. An announcement of the availability of the annual report is enclosed in the May or June billing envelopes of all customers who receive a CWLP bill.

CWLP Water Quality Reports are available here: 2007, 2008, 2009, 2010, 2011, 2012 and 2013, 2014 and 2015. To open the online report, you'll need an updated version of Adobe Acrobat or Adobe Acrobat Reader. Download a free copy of the latest version of Adobe Acrobat Reader. To obtain a printed copy of the report by mail, call the Water Purification Plant, (217) 757-8630, or email the Public Information Office.

Questions about lead in CWLP drinking water? Visit here


Backflow Contamination and How You Can Help Prevent It
In spite of CWLP's efforts to produce pure, safe drinking water, Springfield's drinking water can be placed at risk by contaminants that "backflow" into the system from our customers' homes or businesses. It's up to all customers to take the necessary steps to protect our water supply from this type of problem by making sure their plumbing systems are equipped with working backflow prevention devices. For more information about backflow contamination and how you can help prevent it, see our online pamphlet, Protecting Against Backflow Contamination.

If you can't open the pamphlet, you might need to download a newer version of Adobe Acrobat Reader.

In spite of CWLP's efforts to produce pure, safe drinking water, Springfield's drinking water can be placed at risk by contaminants that "backflow" into the system from our customers' homes or businesses. It's up to all customers to take the necessary steps to protect our water supply from this type of problem by making sure their plumbing systems are equipped with working backflow prevention devices. For more information about backflow contamination and how you can help prevent it, see our online pamphlet, Protecting Against Backflow Contamination. Take our online survey.

If you can't open the pamphlet, you might need to download a newer version of Adobe Acrobat Reader.

 

 

 

Top CWLP Home Water Division Contact Us

 

link to C W L P's twitter page   link to C W L P's Facebook page.

 

 

way easy counter
Well Tracking