Title
Consulting Engineering Services for Comprehensive Sanitary Sewer Evaluation - Contract Services
History
In 2015, RJN Group Inc. of Wheaton, Illinois (RJN) was selected by a competitive proposal process to perform the village’s Comprehensive Sanitary Sewer Evaluation Project. A consultant was requested to guide the Village through the various technical processes to conform to new mandates issued by the Metropolitan Water Reclamation District (MWRD) Watershed Management Ordinance (WMO) as it relates to the reduction of inflow and infiltration (I&I) into the Village’s sanitary sewer system.
RJN Group was tasked to “provide assistance in developing and implementing a Village-wide comprehensive sanitary sewer system evaluation & repair program.” RJN Group has assisted in the establishment of some initial programs, parameters and bid documents for short term and long term operational activities.
In 2016, following large scale flow monitoring and a number of meetings and discussions between RJN and Village staff, the priority basin to focus our MWRD short term improvement efforts was identified. The basin is part of the tributary area to the 151st Street Lift Station, generally bounded between 143rd Street, 159th Street, LaGrange Road, and Harlem Avenue. Portions of the MWRD priority basin were also televised in 2016.
In 2017, efforts within the sanitary sewer system included smoke testing, manhole inspections, cleaning and televising of nearly half of the MWRD priority basin. Additional investigations occurred at the 151st Street Lift Station.
In 2018, smoke testing, manhole inspections, cleaning and televising, and dye testing continued in the high priority basin.
In 2019, work was approved by the board to remediate the deficiencies identified over the past several years. Additional testing, inspections, cleaning and televising also continue in the MWRD high priority basin.
2019 was the last contract year for the consulting services of the RJN G...
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