Water Lab
The EJ Water Lab
The mission of the EJ Water Cooperative Water Lab is to ensure the highest quality water testing services for our community. We are committed to supporting public health and environmental quality by providing reliable, accurate, and timely analytical testing for water quality. Our team of water analysts use approved laboratory methods and techniques in agreement with the current editions of Standard Methods for Examination of Water and Wastewater, and Official Methods of Analysis of the AOAC (Association of Official Analytical Chemists).
Water Lab Hours
We accept samples during regular business hours, Monday-Friday.
Monday – Friday:
8:00 AM – 3:30 PM
Contact Information
Address:
108 S. Main St, Dieterich, IL 62424
Phone:
217-925-5566
E-mail:
waterlab@ejcoop.com
Water Lab Services
Routine Coliform Samples
The EPA requires water systems to routinely test for coliform/e. coli in their water. Routine samples are pulled from raw water, finished water, and water that is in distribution.
New Construction
As of 2019, new construction samples may be analyzed using the presence/absence method (instead of the membrane filtration method). New construction samples require a permit number and two samples (taken more than 24 hours apart).
Boil Orders
Precautionary boil orders are announced when pressure in water lines is reduced. Boil orders can be lifted after a satisfactory sample is returned, which confirms no pathogens entered the water line.
Microbiological Testing
Our team of water analysts are highly trained to analyze water samples for microbiological testing and the presence or absence of Coliform and E.coli.
Sample Submission
How to submit a sample:
Use only laboratory-supplied collection containers. Sample bottles must be filled to the fill line on the bottle. Include sample identification/location, collection date and time, sample type and collector’s name. Submit at least 100 mL of water within 30 hours of collection. Use the EJ Water submission form appropriate for sample type.
Rejection Criteria:
Use only laboratory-supplied collection containers. Sample bottles must be filled to the fill line on the bottle. Include sample identification/location, collection date and time, sample type and collector’s name. Submit at least 100 mL of water within 30 hours of collection. Use the EJ Water submission form appropriate for sample type.
Results and Reporting
Results are provided through a combination of mechanisms including phone and email reporting and will be provided the next day.
EJ Water Lab Submission Form
Certifications and Accreditations
Water Lab Testimonials
“The EJ Water Lab is easy to work with and very professional. They make us feel that we are the most important customer they have.”
-Randy T., Lake Sara
"We've been highly satisfied with the excellent customer service, quick turnaround, and reliable results from EJ Water Lab. Keep up the great work!"
-Speed M., Lawrenceville
Water Lab Inquiry Form
Interested in learning more? Use this form to tell us about your community and your water testing needs.
