Stan’s, Inc. sold feed a jury found was defective. A farmer lost over 200 calves. Stan’s paid $0.

A Feed Mill, A Dead Herd, and a Check That Buried Everything

Calvin Berwald ran Sokota Dairy near Alpena, South Dakota. In April 2012, he bought a customized calf starter mixture from Stan’s, Inc. — a local feed mill. By the morning of May 3, 2012, three of his calves were dead.

A veterinarian, Dr. Hubbert, performed an autopsy and found evidence of monensin toxicity. Monensin is an ionophore antibiotic used in livestock feed to promote growth and prevent disease. In excessive amounts — from a mixing error, for example — it kills cattle. Dr. Hubbert sent remains and feed samples to South Dakota State University for further investigation.

Berwald later alleged in court filings that Stan’s had incorporated more than one ionophore into the same feed ration without proper labeling, in violation of South Dakota law and FDA guidelines. The death count kept climbing. By the time Berwald filed suit, he alleged the contaminated calf starter caused or contributed to the death of more than 200 of his cattle.

The Check That Killed the Contract Claim

Separately, in January 2012, Berwald had contracted with Stan’s to purchase 400 tons of soybean meal at $319 per ton for delivery through September 30 of that year. Soybean meal was a primary component of the feed he used for his entire dairy herd.

On June 7, 2012 — the same period Berwald was watching his calves die — Stan’s general manager Mike Kopfmann called to inform Berwald the company was cancelling the soybean meal contract due to late payments. Berwald disputed he had been late. His own counsel later pointed out that none of his invoices showed any payments past due 30 days.

On June 18, Stan’s mailed Berwald a check for $6,921.57 (roughly two months of groceries for a family of four), along with a letter that read: “This payment will satisfy all obligations between Stan’s, Inc. and Sokota Dairy.” Berwald deposited the check on June 20. That single act — cashing a check during what his own attorney had described in writing as an active, ongoing dispute — extinguished his entire breach-of-contract claim forever, according to every court that reviewed this case.

The Numbers Behind the Cancellation

When Stan’s cancelled the contract, Berwald still had 274.56 tons of undelivered soybean meal owed to him at the contracted price of $319 per ton. By June, market prices had risen. Stan’s priced the buyout at $366 per ton — $47 more per ton than the contract price — and calculated a difference of $12,904.32 (roughly three months of mortgage payments for a median American homeowner). From that figure, Stan’s deducted the $5,982.75 (enough to cover a month of utilities for roughly 30 working families) it claimed Berwald owed, and mailed him the remainder.

Berwald’s attorney disputed the debt, disputed the cancellation, and disputed the adequacy of the payment — all in writing, before the check even arrived. None of it mattered. The moment Berwald deposited that check, South Dakota’s Uniform Commercial Code treated the dispute as settled in full.

The Non-Financial Ledger: What the Verdict Can’t Measure

Calvin Berwald did not wake up one morning and decide to sue a feed company for sport. He woke up on May 3, 2012, and found his calves dead. He called a veterinarian. He cooperated with investigations. He sent carcasses to a university lab. He watched the body count climb past 200 animals while trying to keep a working dairy farm alive. That is the human reality sitting underneath every dry legal paragraph in this case.

A dairy farm is not a warehouse. It is a living system that a farmer builds over years — breeding decisions, feeding schedules, infrastructure, relationships with buyers, creditors, and suppliers. The loss of more than 200 calves does not simply subtract one line from a balance sheet. It collapses future milking capacity, breeding stock, and years of compounding agricultural investment. Berwald’s attorney described it plainly in a letter to Stan’s: the cancellation of the soybean contract alone “would result in significant losses to him.” Add 200 dead calves on top of a cancelled feed contract, and you have a farmer whose entire operation was simultaneously attacked from two directions by the same company.

The timeline itself is a form of evidence the jury was never forced to confront in full. Berwald told Stan’s that his calves were dying. According to court filings, Berwald communicated his belief that Stan’s calf starter was killing his calves for the first time in that same June 7 phone call — the same call in which Stan’s told him it was cancelling his soybean meal contract. Within eleven days, Stan’s had mailed a check declaring all obligations settled. Berwald’s attorney sent a letter specifically objecting, specifically noting the suspicious timing, and specifically requesting the contract be reinstated. Stan’s cashed the futures contract anyway and mailed the check.

The court ultimately ruled that cashing that check — a check sent while Berwald was simultaneously watching his herd die, actively disputing the cancellation, and represented by counsel who had objected in writing — constituted a legally binding settlement. The law calls this “accord and satisfaction.” What it actually represents is a company outmaneuvering a grieving farmer with a paperwork trap during the most chaotic and devastating period of his professional life. The courts found no bad faith in that maneuver. The law, as written, did not require them to.

Then came the trial on the warranty claims. Stan’s defense strategy focused on blaming Berwald’s own facilities. Their expert witness, Dr. Little, described Berwald’s dairy as “the most deplorable situation he had ever seen in a dairy operation.” That expert had produced a written inspection report and photographs from a 2010 visit — materials that Stan’s failed to hand over in discovery. Those materials only surfaced on the first and second mornings of trial itself, after years of litigation. The court excluded the documents as a discovery sanction, but the oral testimony from Dr. Little — the characterization of Berwald as running a deplorable operation — remained in front of the jury.

The jury concluded that Stan’s breached the warranty of fitness for a particular purpose. They wrote it down. They signed it. Then, in the same verdict, they awarded Berwald zero dollars, finding that the breach did not cause his losses. A farmer lost 200 calves. A jury confirmed the feed was defective. The company paid nothing. That outcome is not a legal technicality. It is a statement about whose version of events the system chose to validate.

Legal Receipts: The Words They Actually Said

Societal Impact Mapping

Economic Inequality: The Law That Eats Small Farmers

The legal doctrine that killed Berwald’s contract claim is called “accord and satisfaction.” Under South Dakota’s version of the Uniform Commercial Code, if a company sends you a check with a letter declaring it settles “all obligations,” and you cash that check, the dispute is over — regardless of whether you objected before the check arrived, regardless of whether your lawyer sent written protests, and regardless of whether the underlying dispute was legitimate.

This doctrine was designed for commercial counterparties with equal bargaining power and legal resources. Berwald had a lawyer. That lawyer sent a written objection on June 14. Stan’s mailed the settlement check anyway on June 18. When Berwald deposited the check four days later — during a crisis period in which his herd was dying and he needed every dollar — the law treated that deposit as freely negotiated consent to a full settlement. The South Dakota Supreme Court confirmed this interpretation unanimously.

The practical result: a large local business can unilaterally cancel a contract, mail a partial payment stamped “settles everything,” and permanently close a small farmer’s legal options simply by timing the check correctly. Berwald’s attorneys argued that Stan’s acted unilaterally without affording him any real opportunity to dispute the transaction. The courts found that the legal box had been checked regardless. This is not an anomaly; it is the system functioning as designed — and it functions far better for companies than for individual farmers.

Consider the raw numbers. Berwald contracted for 400 tons of soybean meal — a primary input for his entire dairy operation. Stan’s cancelled the remaining 274.56 tons mid-season. The soybean meal market had risen, so Stan’s did not even take a loss on the cancellation. They sold the futures contract at the higher price, pocketed the difference above Berwald’s contract price, deducted a contested debt, and sent him the leftover. Stan’s faced no penalty for the cancellation itself. The courts validated the financial math and ignored the power imbalance embedded in it.

Public Health: Ionophore Contamination in the Food Supply Chain

Monensin — sold under the brand name Rumensin — is an ionophore antibiotic used in cattle feed to promote growth and prevent disease. It is a regulated substance precisely because excessive amounts are lethal. The court record states explicitly that Berwald’s calves were “poisoned by feed containing Rumensin far in excess of ranges acceptable even to adult cattle.” The contamination was severe enough to kill more than 200 animals.

Berwald alleged in court filings that Stan’s incorporated more than one ionophore into the same feed ration without proper labeling, in violation of South Dakota state law and FDA guidelines. A feed mill that mixes ionophores incorrectly and mislabels the output is not merely harming one farmer. It is producing feed that enters a food production system. The calves Berwald was raising were dairy cattle — animals intended to produce food for human consumption. The contamination event raises questions about whether the regulatory framework for feed mill quality control is sufficient, and whether a single bad batch of improperly mixed feed from a local mill can cascade through a regional food supply.

The case did not produce a regulatory finding, a recall, or any documented corrective action by state or federal agencies. The harm was treated exclusively as a private civil dispute between a farmer and a feed company. The broader public health question — whether this feed mill’s mixing practices posed ongoing risks — received no public accounting in the court record presented here.

The Cost of a Life — By the Numbers

What Now: Who Answers for This

The jury verdict is final. The Supreme Court of South Dakota affirmed everything. Calvin Berwald has no further legal avenue in this case. But that does not mean the people and institutions responsible for this outcome face no scrutiny.

The Company

Stan’s, Inc. — the feed mill named in this case — operated as a local supplier in South Dakota. The court record identifies its general manager as Mike Kopfmann. No regulatory action against Stan’s appears in the source material. The company sold feed a jury confirmed breached the warranty of fitness for a particular purpose and paid zero dollars in damages for it.

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