Residents warn Kane County board that Grove development could sap wells and harm aquifer
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Summary
Residents from Blackberry Township, Sugar Grove and Nottingham Woods told the Kane County Board they have documented continuous pumping from The Grove development into Hannaford Bliss Woods Forest Preserve, urged a full groundwater dewatering impact assessment, and warned of potential private well drawdown and contamination risks.
Residents from Sugar Grove, Blackberry Township and Nottingham Woods used the Kane County Board’s public‑comment period to press elected officials for technical study and protective measures related to Crown Community Development’s Grove project.
Dr. Ross Powell, an emeritus geosciences professor, told the board crews’ excavation had produced a large pond on the north side of Merrill Road that he said is being filled primarily by groundwater rather than stormwater runoff. He said pumping and discharge into the Hannaford Woods/Nichols Farm Forest Preserve fall outside the stormwater agreement between the village and the forest preserve and warned of "a high potential of groundwater contamination" and downstream flooding if groundwater diversion continues.
Residents asked the board to require a full groundwater dewatering impact assessment — including aquifer drawdown modeling, nested piezometers, monitoring wells and suspension of groundwater discharge until independent verification is completed. Carolyn Anderson said Nottingham Woods homes rely on shallow aquifers (static water levels as shallow as 15–25 feet) and that county groundwater models are not granular enough to evaluate local shallow‑aquifer impacts.
Other speakers said grading and dewatering from the projected 260‑plus‑acre development could force many households to deepen wells (speakers estimated tens of thousands of dollars) and increase sediment and chemical risk to pipes and septic systems. Speakers also described past engineering studies with differing conclusions (Hay & Associates, EEI) and alleged contractual confidentiality or gag provisions that limit municipal responses.
Board members acknowledged constituent concerns and were asked to pursue technical review with Sugar Grove, the Forest Preserve Commission and state agencies. No formal county action was taken at the meeting; several members said the technical materials submitted by residents would be circulated to committee staff and to the board prior to future consideration.
