The Metropolitan Water Reclamation District of Greater Chicago requires that requires that property owners accurately monitor the wastewater discharge volumes and determine the representative concentrations of Biochemical Oxygen Demand (BOD) and Suspended Solids (SS).
This sampling data must be reported on the User Charge Certified Sampling Analysis Reporting Statement (RD-920). Users must submit with this statement, along with specific and detailed laboratory analysis reports, sampling logs, logs of flow-meter readings, calibration certification, etc., signed by their consulting engineers
To receive a quote for RD920 testing services, contact an ECG representative at 312.663.3900.

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Chicago, Illinois 60607
(800) 282-2084
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