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HomeMy WebLinkAbout05/17/2011 Sewer Repairs using Cured-In-Place-Pipe (CIPP) (Engineering Services)Mount 1 l� INTEROFFICE MEMORANDUM TO: VILLAGE MANAGER, MICHAEL E. JANONIS FROM: WATER /SEWER SUPERINTENDENT DATE: APRIL 28, 2011 SUBJ: ENGINEERING SERVICES AGREEMENT FOR CURED -IN- PLACE -PIPE (CIPP) AND SEWER LINE SPOT RELAY PROJECTS ($80,385) BACKGROUND In the current budget, staff requested funds for continuing the combined and separate sewer system repairs. The combined sewer repairs were identified during the Combined Sewer System Evaluation Study ( CSSES) completed in 2004. In total, almost $15 million worth of combined sewer repair work has been slated over fifteen years. This year is the 7th year of the project. Due to the scale of this project, literally a multi - million dollar, multi -year effort, staff is recommending the use of an engineering consultant part -time to assist Village staff in the oversight of this program. The program for 2011 includes 14,558 lineal feet of cured- in- place- piping (CIPP), 23 spot relays, and 5 manhole replacements. DISCUSSION Baxter & Woodman, Consulting Engineers of Crystal Lake, Illinois prepared the initial CSSES study that provided the Village with detailed information about the condition of the Village's combined sanitary sewer system. The firm is very familiar with the Village's infrastructure rehabilitation program and is well attuned to our customer oriented work philosophies. In addition, Baxter & Woodman has successfully provided construction engineering services for each of the 6 annual CIPP and spot relay projects completed to date. All of these projects have been completed on schedule and under budget. The CIPP and spot relay programs continue to be substantial and demanding as in previous years. It is the opinion of staff that the best interests of the Village would be served by the continued use of Baxter & Woodman on a part -time basis to provide engineering oversight on these programs. Mount Prospect Public Works Department At staff's request, Baxter & Woodman submitted a proposal to supply limited engineering assistance after contract award that includes half -time oversight of the CIPP project, 100% construction observation of the spot relay work, and overall contract administration for both projects. Page 2 of 2 Engineering Services Agreement for Cured -In -Place -Pipe (CIPP) and Sewer Line Spot Relay Projects ($80,385) April 28, 2011 Their fee to assist the Village with both of these projects for 2011 amounts to a not to exceed total of $80,385. The amount paid to Baxter & Woodman in 2010 for this effort was $96,000. The proposed work in 2011 has 9 more spot relays than performed in 2010 but the CIPP lining project has 20 less CIPP liner segments than last year. Baxter & Woodman has reduced their 2011 fee request accordingly. Engineering services for this type of work usually range between 8 -10% of the overall project costs. When the fee is compared to the actual bids received, the fee is 10% of the proposed award amounts of $769,168.11. As this is a not to exceed proposal, the fee will vary with the actual project costs but not exceed the $80,385. RECOMMENDATION I recommend that the Village Board authorize a contract with Baxter & Woodman Consulting Engineers of Crystal Lake, Illinois for specified engineering services associated with the Sewer Line Spot Relay Repairs and the Sewer Rehabilitation using CIPP Process projects in an amount not to exceed $80,385. Sufficient funds for this proposed contract exist in the current budget. Funding for this proposed project will come from water and sewer enterprise funds. (:)�� Matt Overeem I concur Sean P. Dorsey Director of Public Works CC: Village Clerk Lisa Angell H: \Water \projects \2011\May172011 Board meeting\2011 CIPP B &W PSA board report.doc