Agenda - Council - 10/27/2026 - Laserfiche WebLink

Home

Task 7 will focus on securing the necessary permits to construct new municipal wells, generally following the New Municipal Public Water Supply Well Checklist published by the MDH. During this task we will be in communication with the MDH and DNR for permitting conditions. The subtasks necessary to complete this effort generally include: o Develop preliminary well site location map including existing facility locations, utilities, and proximity to local features impacting public water supply well location o Verify well setback distances following MDH criteria based on items located on preliminary well map o Verify location of important topographic features o Obtain Well Construction Preliminary Assessment from the DNR o Complete DNR new well application for modifications to the Client's water appropriations permit using the DNR MPARS system o Confirm the DNR has the Client's approved DNR Water Supply Plan (WSP) on file The remainder of the permitting efforts will be completed as part of the final design. +/ Deliverables: o Well location and planning maps (well design depths, sizing, well setback verification) o DNR Well Construction Preliminary Assessment o DNR MPARS permit application o Meeting agendas and minutes Phase 2: Test Wells and Aquifer Pumping Tests Phase 2 starts after the City approves the sites and the MnDNR responds to the Preliminary Well Construction Assessment. TASK 0 FINALIZE TEST HOLE AND TEST WELL LOCATIONS SEH will meet with City staff to set the final locations and depths. We will confirm which City -owned or City - controlled parcels are available for drilling. The City will provide all right -of -access permits for the selected locations. We will confirm the MnDNR position on future appropriation before drilling starts. SEH will: o Confirm which City -owned or City -controlled parcels are available for drilling at each recommended site (The City will provide all right -of -access permits and agreements needed for drilling and testing at the selected locations) o Set the final test well location on each parcel based on property boundaries, known utilities, MDH isolation distances, drill rig access, and space for a future production well o Set the target depth for each test well from the updated aquifer maps, with the first test hole log used to confirm the depth for the others o Confirm the MnDNR position on future appropriation for each site before drilling starts o Stake each drilling location. The drilling contractor will obtain utility locates o Deliverables: Final location and depth table with a site map for each test well. TASK 0 CONSTRUCTION SPECIFICATIONS SEH will prepare specifications for test hole drilling, 6-inch test well installation, and 72-hour aquifer pumping tests. The specifications will follow Minnesota Rules Chapter 4725. This task will include the following: o Specify drilling and construction to Minnesota Rules 4725, including outer casing through the unconsolidated material, inner casing seated in bedrock with a grouted annulus, and open hole in the Tunnel City-Wonewoc aquifer above the Eau Claire Formation (Alternative methods that meet the rules will be acceptable) o Specify geologic sampling intervals, sample handling, and core or cuttings storage o Specify test pump capacity, discharge piping, flow measurement, and water level access for the pumping tests o Specify discharge handling during development and test pumping, including routing to storm sewer or ground surface as approved by the City o Confirm drilling needs, methods, and sampling criteria with the drilling contractor before mobilization V Deliverables: Test well and aquifer test specifications and drawings, including the assumed well construction detail. SHORT ELLIOTT HENDRICKSON INC. WELL SITING ASSESSMENT FOR MUNICIPAL WELLS #9 AND #10