A portion of the FRWRD service area in central Elgin is connected to a combined sewer system (CSS). A combined sewer system is where all sanitary waste and stormwater flows are combined into the same sewers for transport. During normal flow periods, all the flows in the CSS are transported to the Albin D. Pagorski Water Reclamation Facility (ADP WRF) for treatment. Most of the CSS and combined sewer overflows (CSOs) are owned by the City of Elgin. FRWRD owns a single combined sewer overflow (CSO) discharge point in the system located on Lower Wellington Avenue just north of US 20. During very high flows associated with storm events, the flows in the CSS can exceed the capacity of the system. In those situations, CSOs are activated and flows over the amount that can be transported for treatment are discharged directly to the Fox River. For the CSO point owned by FRWRD, the following table provides information on discharge events that have occurred. Data will begin being populated for events starting April 1, 2016. For events prior to April 1, 2016, contact FRWRD for information.
CSO Event Table for Lower Wellington CSO Discharge Point Owned by FRWRD
CSO Outfall # = 004
Outfall Description = Lower Wellington Avenue just north of US-20
|Start Date||Rainfall Duration (hrs.)||Rainfall Amount (in.)||Estimated Duration of
CSO Discharge (hrs.)
|Estimated Volume of
CSO Discharge (MG)
FRWRD has several documents available related to the CSO system. Those documents are available below.