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AG Nessel Secures Settlement with Calhoun County CAFO to Perform Groundwater Monitoring Following 2019 Discharge
February 26, 2026
LANSING – Michigan Attorney General Dana Nessel has reached a settlement (PDF) with Holloo Farms, a concentrated animal feeding operation (CAFO) in Calhoun County, to resolve allegations that the company violated environmental regulations and improperly discharged animal waste into state waters. As part of the settlement, Holloo Farms will pay $32,907 in civil fines and partial enforcement costs and will be required to perform groundwater monitoring at its dairy CAFO.
Since 2004, Holloo Farms has received more than a dozen compliance communications from the Department of Environment, Great Lakes, and Energy (EGLE), including violation notices. In 2019, Holloo Farms discharged approximately 72,000 gallons of raw manure to Huckleberry Drain as a result of improper land application of CAFO waste during the winter. Huckleberry Drain discharges into Wilder Creek, the Kalamazoo River, and ultimately into Lake Michigan.
Attorney General Nessel filed a lawsuit against Holloo Farms in March 2022 on behalf of EGLE following this longstanding history of alleged noncompliance with permit requirements. As the court case wound its way up to the Court of Appeals and back down to circuit court, and before a formal settlement was reached, Holloo Farms voluntarily made significant efforts to remedy past and ongoing violations by investing in upgrades to its production area to safeguard nearby surface water, justifying a relatively low civil penalty for the serious violations alleged in the complaint.
“Animal waste, when not managed properly, can contaminate our waters and threaten public health, which is why EGLE works tirelessly to ensure CAFOs comply with environmental laws,” said Attorney General Nessel. “When these operations fail to take these laws seriously, my office will work alongside EGLE to hold them accountable and protect Michigan’s natural resources.”
“Michigan’s water resources are vital to our communities, our environment, and our economy,” said Michigan Department of Environment, Great Lakes, and Energy Director Phil Roos. “This settlement reinforces the importance of strong safeguards and accountability to prevent pollution and protect ground and surface waters for the health of residents and future generations.”
The settlement requires Holloo Farms to implement a Groundwater Monitoring Plan and provide groundwater quarterly sampling reports for one year as well as install the monitoring wells.
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