2010-07-14 CC Meeting Packet - Laserfiche WebLink

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Attachment A: Provide monitoring data (graph or table) for as many years as possible. The City does not have good monitoring data for its wells. Wells are sealed, due to water table being above frost line. The City is working with a contractor to identify what is necessary to install measurement capabilities to both wells that can be monitored daily by SCADA. The cost of the improvements will dictate when it can be completed. Since the work may involve pulling the well, we may need to install the equipment on each well in conjunction with maintenance of the well. It is anticipated that the SCADA improvements will be done in 5 -7 years. Ground water Level Monitoring — DNR Waters in conjunction with federal and local units of government maintain and measure approximately 750 observation wells around the state. Ground water level data are available online www.dnr.state.mn.us. /waters. Information is also available by contacting the Ground Water Level Monitoring Manager, DNR Waters, 500 Lafayette Road, St. Paul, MN 551554032 or call (651) 259 -5700. Natural Resource Impacts. Indicate any natural resource features such as calcareous fens, wetlands, trout streams, rivers or surface water basins that are or could be influenced by water withdrawals from municipal production wells. Also indicate if resource protection thresholds have been established and if mitigation measures or management plans have been developed. There are no known natural resource impacts. Deep wells are not having an identifiable impact on surface waters or wetlands. Sustainability. Evaluate the adequacy of the resource to sustain current and projected demands. Describe any modeling conducted to determine impacts of projected demands on the resource. Monitoring well data for nearby City of Lino Lakes and DNR Obwell Number: 2009 MN Unique well Number: 208135 are more complete than Centerville's own data. The City's Well #1 corresponds closely with the City of Lino Lakes well #3 for depth. The City's Well #1 is very similar in depth to Well Number 208135. These records all indicate that water table has not changed significantly in the past 20 years. City believes that its well water supply is sustainable and will continue to be the City's water source for the foreseeable future. Source Water Protection Plans. The emergency procedures in this plan are intended to comply with the contingency plan provisions required in the Minnesota Department of Health's (MDH) Wellhead Protection (WHP) Plan and Surface Water Protection (SWP) Plan. Date WHP Plan Adopted: 2007 Date for Next WHP Update: SWP Plan: ❑ In Process ❑ Completed Z Not Applicable F. CAPITAL IMPROVEMENT PLAN (CIP) Adequacy of Water Supply System. Are water supply installations, treatment facilities and distribution systems adequate to sustain current and projected demands? ❑ Yes ® No If no, describe any potential capital improvements over the next ten years and state the reasons for the proposed changes (CIP Attachment B). Third water supply well in six to eight years. Not in current five -year CIP. Page 6 of 19 M