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HomeMy WebLinkAbout09/10/2019 COW Minutes Mount Pax.417,7 COMMITTEE OF THE WHOLE MINUTES — September 10, 2019 — V Floor, Village Board Room Village Hall, 50 S. Emerson Street 1. ROLL CALL— CALL TO ORDER The meeting was called to order at 7:06 p.m. in the Village Board Room of the Village Hall, 50 South Emerson Street, by Mayor Pro-Tem Eleni Hatzis. Trustees present included William Grossi, Paul Hoefert, Richard Rogers, Colleen Saccotelli and Michael Zadel. Mayor Juracek was absent. Staff present included Village Manager Michael Cassady, Assistant Village Manager Nellie Beckner, Village Clerk Karen Agoranos, Director of Public Works Sean Dorsey, Water Superintendent Casey Botterman and Management Analyst Alexander Bertolucci. 2. APPROVAL OF MINUTES Trustee Hoefert seconded by Trustee Grossi moved to approve the minutes of the Joint Village and Finance Commission Special Workshop of August 13, 2019. The minutes were approved by unanimous voice vote. 3. CITIZENS TO BE HEARD None 4. DISCUSSION ITEMS 4.1 Redundant Water Supply Alternatives Director of Public Works Sean Dorsey presented information regarding the Villages' back- up,or redundant,water source in the event of an emergency that contaminates our existing water supply Mr. Dorsey stated the Village receives water from Lake Michigan and is treated by the City of Chicago. The water is delivered to the Village in a finished form via a system operated by the Northwest Suburban Municipal Joint Action Water Agency (NWSMJAWA). Mr. Dorsey stated Village maintains five (5) deep wells that serve as an enmergency back-up source of water and has done so since transferring to Lake Michigan water in 1987. Mr. Dorsey stated the wells are due for extensive maintenance work that will require an investment from the Village. Mr. Dorsey stated before committing to this investment, it would be prudent to explore other options for back-up water supplies. Staff commissioned the consulting engineering firm of Burns and McDonnell to perform a Redundant Water Supply Feasibility Study. In addition, Mr. Dorsey stated staff contacted the Northwest Water Commission (NWC)to examine the possibility of establishing a back-up water supply. Mr. Dorsey stated tonight's discussion will summarize the findings of the study. Mr. Dorsey provided objectives for tonight's discussion: • Evaluate Village's options for back-up water supply • Review Quality of Water supply • Develop Alternatives • Review recommendations. Committee of the Whole Page 1 of 4 5/14/2019 Mr. Dorsey introduced Randy Patchett, engineer from Burns and McDonnell. Mr. Patchett began his presentation with a summary of existing conditions in the Village that include five (5) groundwater wells, five (5) booster stations and five (5) ground storage tanks. Mr. Patchett reviewed NWSMJAWA's existing service to the Village that include three (3) delivery structures and a main pump station that delivers water to all the member communities. The system has the capacity to meet the demands of the Village. Mr. Patchett presented the Northwest Water Commission capabilities and indicated the system has the capacity to meet the demands of the Village; there is no current interconnect with the Village. Mr. Patchett stated the Village has different options for redundancy from three systems; 1) NWSMJAWA, 2)Village groundwater well system and 3) NWC. Mr. Patchett explored reasons to interconnect with NWC that include: • NWSMJAWA and NWC finished lake water quality is similar • Groundwater exceeds maximum contaminate levels for radium, gross alpha and iron • Groundwater has higher potential for corrosion than lake water • Iron and other metals could affect taste, odor and color • Treatment of groundwater would be required should it be used as an alternate water supply for an extended period of time Mr. Patchett stated an interconnect with NWC would provide redundancy similar to NWSMJAWA. NWC would require one connection point to be maintained for redundancy, making it easier to manage in an emergency. The groundwater system requires four wells to be operational for redundancy, creating additional staff resource to manage system. Mr. Patchett reviewed the reliability of the three options with regard to water quantity, water quality and reliability. Mr. Patchett presented alternatives for redundant water supply and identified four locations to be considered for interconnection sites with NWC: Location A- Kensington and Wolf Location B - Kensington and Wheeling Location C - Kensington and Rand Location D -Highland and Emerson Mr. Patchett reviewed the costs associated with well operation and maintenance. The cost to maintain and operate the Village five wells is approximately $50,000 per year. The life cycle of well repair is twenty years. Village staff provided information stating the Village has spent$1.2 million since 1997 to maintain the wells. Projected rehabilitation costs over the next three years is $2.1 million (Wells 4, 11, 16 and 17). Mr. Patchett reviewed estimated costs to interconnect with NWC with different scenarios and alternatives. Mr. Patchett and his team consulted with Village staff to identify items to consider: • Water quality-priority • System Reliability • Reciprocation with NWC— 2-way connection • Costs —Capitol and Operation/Maintenance Committee of the Whole Page 2 of 4 5/14/2019 Mr. Patchett provided the following recommendations as a result of the feasibly study: • Interconnection with NWC and Booster Pump Station at Wheeling Road and Kensington Road - engineer's estimated cost of$3.7 million • Abandon existing wells; cost to do this is $450,000 Mr. Patchett added the following: • 100-year present worth values of groundwater wells includes an estimated total cost of keeping the groundwater wells is $7.6 million • 100-year present worth value of NWC interconnection and booster pump station for alternative 3B is $4.4 million and $6.3 million for alternative 3D. Staff concurs with the Burns and McDonnell recommendation to continue to develop appropriate next steps to establish a 100% redundant water supply interconnect with the Northwest Water Commission. This recommendation includes further assessment of the potential for the Village to provide an emergency back-up water supply to the Northwest Water Commission. Mr. Dorsey provided the following in response to questions from the Board: • The water source of the existing wells come from aquifers deep in the ground. • Rainwater supplies the aquifer through infiltration. • Wells are utilized primarily for emergency water supply for short-term emergency situations lasting less than 30 days. • According to NWSMJAWA bylaws, redundant water supplies are the responsibility of each municipality. • If the decision is made to partner with NWC, an intergovernmental agreement would need to be developed to establish rates and other details. Interconnection would take approximately one and one half to two years. • Village has never had to rely on an emergency back-up water system. • Water consumption has decreased due to an increase in water efficiency, awareness and aging population. Board comments • From a security standpoint, Lake Michigan water is a safer source • Lake Michigan water has proven to be a reliable source of water The Village Board provided direction for staff to move forward, gathering additional information and identifying next steps toward a partnership with NWC. 5. MANAGER'S REPORT No report. 6. ANY OTHER BUSINESS Mayor Pro-tem Hatzis announced the Celebration of Cultures event will take place Saturday at Kopp Park. Coffee with Council is also Saturday. Committee of the Whole Page 3 of 4 5/14/2019 7. ADJOURNMENT The meeting adjourned at 8:20 p.m. Respectfully submitted, Karen Agoranos Village Clerk Committee of the Whole Page 4 of 4 5/14/2019