Delineation of contributing areas for 2017 pumping conditions to selected wells in Ingham County, Michigan

Carol L. Luukkonen

doi:10.3133/ofr20181133

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Delineation of contributing areas for 2017 pumping conditions to selected wells in Ingham County, Michigan

Carol L. Luukkonen

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Abstract

As part of local wellhead protection area programs, areas contributing water to production wells need to be periodically updated because groundwater-flow paths depend in part on the stresses to the groundwater-flow system. A steady-state groundwater-flow model that was constructed in 2009 was updated to reflect recent (2017) pumping conditions in the Lansing and East Lansing area in the Tri-County region, Michigan. For this current (2017) study, withdrawals from selected production wells were updated, and the existing model calibration under the new pumping conditions was checked. Results of flow simulations indicate that 10-year time-of-travel areas cover approximately 25 square miles and 40-year time-oftravel areas cover approximately 51 square miles.

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Source-reported bounding extent: 42.40115038362433° to 43.18114705939968° latitude; -85.0726318359375° to -83.64990234375° longitude. This indicates report coverage, not an exact sampling location. View area on OpenStreetMap.

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Carol L. Luukkonen. 2018-10-01. Delineation of contributing areas for 2017 pumping conditions to selected wells in Ingham County, Michigan. https://doi.org/10.3133/ofr20181133

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