Title
2018 Sanitary Sewer Smoke Testing, Dyed Water Flooding and Manhole Inspections - MWRD Priority Sewer Basin 2nd Half - Proposal
History
The Metropolitan Water Reclamation District of Greater Chicago (MWRD) governs over the sanitary sewer system of the village. The MWRD requires sanitary sewer systems that discharge into the MWRD facilities to implement measures to reduce excessive Infiltration and Inflow (I&I) from entering MWRD’s system.
In 2015, the village selected RJN Group as the Comprehensive Sanitary Sewer Evaluation consultant to provide assistance in developing and implementing a Village-wide comprehensive sanitary sewer evaluation & repair program in order to meet the MWRD requirements for the Inflow and Infiltration Control Program (IICP).
RJN Group conducted comprehensive flow monitoring for the Village sanitary sewer system in 2016. Based on those results, three sewer basin areas came up as the highest priority. One of these basins was also identified as the Short-Term High Priority Area identified and submitted to the MWRD for the new Inflow and Infiltration Control Program (IICP). Smoke testing, manhole inspections, closed circuit television inspection and rehabilitation for “High Priority” defects found in this critical area are mandatory under the new MWRD IICP program. The Village requested a proposal from RJN Group to perform the required inspections and testing. The 2017 smoke testing and manhole inspection program identified approximately 2 MGD (million gallons per day) of peak inflow and infiltration during a 1-year, 1 hour storm event. The study also provided a list of recommended actions and a cost estimate for the rehabilitation work. The 2018 smoke testing and manhole inspections comprise the second half of the MWRD short term compliance requirements. This work includes approximately 409 manhole inspections and 82,603 LF of smoke testing in 2018.
The estimated cost for performing the required testing and inspections per the proposal from RJN Group is $127,282.55. Staff is recommending a contingency for unexpected sanitary sewer encounters for the project in the amount of $10,000.00.
On June 18, 2018, this item was reviewed by the Public Works Committee and recommended for approval and referred to the Village Board of Trustees for consideration.
Financial Impact
Funds are available for this project in the FY2018 Water and Sewer budget account 031-6003-443800.
Recommended Action/Motion
I move to approve waiving the bid process;
And
Approve the proposal for 2018 Sanitary Sewer Smoke Testing, Dyed Water Flooding and Manhole Inspections - MWRD Priority Sewer Basin 2nd Half from RJN Group of Wheaton, Illinois, for an amount not to exceed $137,282.55 ($127,282.55 plus $10,000 contingency).