Community Water Supply Testing Program

Fiscal Year 2018

The Illinois EPA is again offering drinking water testing services for your water supply as part of our Community Water Supply Testing Program (CWSTP) for Fiscal Year 2018 (July 1, 2017 through June 30, 2018.)

Why Use the Illinois EPA Laboratory?

  • NELAC Certified
  • Accurate & Timely Results
  • Competitive Prices
  • Excellent Customer Service

For more information, contact Isabelle Gac at or (217) 782-9780.

Illinois Community Water Supply (CWS) Packets include (delivery date mid-April):

  • Chemical Analyses Price list
  • Coliform Analyses Price list
  • Customized Analysis Summary and Rate Schedule
  • CWSTP Election Form and Billing Notice

NOTE: For the sampling period, starting July 1, 2017, please submit the Participation Form along with your payment as soon as possible (by May 31, 2017) to avoid possible disruptions in sample bottle receipt leading to potential violations. Please make checks payable to "Illinois EPA."

The Community Water Supply Testing Program has the same options we have included in the past:

Signup is for one year. Your water system can elect to participate in the program for just one year. The annual program allows us to better evaluate your testing requirements for the year and enables us to establish fees that reflect the most accurate costs possible. This one-year period begins July 1, 2017 and ends June 30, 2018.

Signup Options

Full Participation.

Choosing full participation includes all drinking water testing required for your supply for the upcoming year. If our laboratory does not perform the actual analysis, we will arrange for the analysis to be performed by another laboratory and we will pay for those tests from the fees we collect. The Illinois EPA staff will deal directly with the laboratories and take care of any testing, bottle or data reporting issues for you.

VERY IMPORTANT: When choosing a coliform lab, be sure you keep the distance to the lab and sample holding time in mind.

Partial Participation.

By choosing this option you only need to commit to the chemical analyses performed by our laboratory. You can choose to opt in or opt out of the program for your Coliform, Cryptosporidium or Radionuclide testing. Your fee will be based only on the analyses that you choose to have done as part of the CWSTP.

If you choose the partial participation option, you will pay the Coliform, Cryptosporidium or Radionuclide labs directly. They will need to supply you with the necessary bottles and shipping containers as well as handle the data reporting. If you decide to opt out for any of the testing referred to in this section, please make sure that the lab you choose is certified.

No participation.

By choosing this option you agree not to participate in the program but your supply must still complete all testing requirements and report the results to the Illinois EPA. We ask that you still return the Participation Form and indicate that you choose not to participate.

Electronic Results

Electronic results can be sent to you.

If you participate in the program, you have the option of having your results sent to any e-mail address. You can simply choose this option on the enclosed Participation Form and send an e-mail with your facility ID # to Isabelle Gac at Coliform, Cryptosporidium and Radionuclide results are provided by mail.

Illinois EPA has retained CWSTP Benefits

Annual Fee.

Your annual fee is determined by the drinking water testing required for your supply and the signup options you select. The fee covers the costs of your drinking water analyses for the entire year (July 1, 2017 – June 30, 2018).

No Added Fees.

If you choose to have the Illinois EPA laboratory provide the testing for Cryptosporidium or Radionuclide a contracted lab will be utilized, but the Agency will only charge the amount that the other laboratory charges. The Illinois EPA laboratory does not add a processing fee and we oversee all data reporting and manage any bottle issues for you.

New Option - Volunteer Testing for Harmful Algal Blooms

Health Advisories for Microcystin and Cylindrospermopsis

The US EPA has issued health advisories for Microcystin and Cylindrospermopsin. The Illinois EPA laboratory has been performing these tests for the past two years and stands ready to help you test both your intake and finished water for these cyanotoxins.

Illinois EPA Laboratory

The Illinois EPA takes great pride in meeting your needs. We have a very experienced staff and employ a full time Quality Assurance Officer. Data quality is our top priority and our laboratory is certified by NELAP, U.S. EPA and the Illinois Department of Public Health.

We look forward to working with you again this year. If you have any questions regarding this program, please contact one of the Illinois EPA laboratory staff listed below: 

Laboratory Questions:

General Number (217) 782-9873 
Isabelle Gac, Office Coordinator(217) 782-9780
Kelly Turpin, Quality Assurance Officer(217) 524-6387 
Tom Weiss, Lab Manager(217) 557-2420