November 2, 2025

One Mussel, Millions Spent
Idaho’s Snake River Experiment

By: Idaho Dist. 24 State Senator Glenneda Zuiderveld

ID Senator Glenneda Zuiderveld (Photo Credit: Glenneda Zuiderveld)

Snake River’s “Copper Bullet” or a Shot in the Dark?
Sometimes the questions that aren’t asked say more than the ones that are.

In September 2023, Idaho officials declared an emergency over quagga mussels in the Snake River near Twin Falls, launching what’s become one of the most aggressive, expensive, and controversial chemical treatments in state history.

Like COVID, we suddenly found ourselves in a state of emergency, decisions made at lightning speed, information tightly controlled, and fear driving the narrative. From the moment the mussel was “found,” everything was fast-tracked, even the first town hall was held on a Sunday night. At that meeting, officials told us that scuba divers had searched two miles of river to find the single male quagga mussel, comparing it to “finding a needle in a haystack.”

They also explained that the larvae, or veligers, could only be seen through a magnifying glass, and we were told to simply trust them. And yes, we all want to trust our government. But after COVID, and after uncovering $87 million in fraud and abuse within our Health and Welfare, Education, and Insurance budgets, not to mention learning that we can’t even reconcile parts of our budget through the Luma accounting system, I’ve learned to be cautious when government agencies say, “trust me.”

And if we’ve learned anything, it’s this: when government fast-tracks something, it rarely ends well for the people footing the bill.

They told us the river was infested. But here’s the truth that’s gotten buried under the headlines: only one adult quagga mussel was ever confirmed, and it was reportedly male.

So how did we end up dumping over eleven million dollars in three years worth of copper into one of Idaho’s most iconic rivers when no breeding colony was ever found?

Photo of an Idaho license plate covered in quagga mussels, widely used in media and state materials, but with no verified proof it was naturally found in a river. This same prop was shown to us at the first town hall in Twin Falls, Idaho. If someone claims it came from the Colorado River, ask for the evidence: date, location, and chain of custody. I can’t find any.

Follow the Copper

The chemical used to treat the Snake River is called Natrix™, a copper-based product made by SePRO Corporation an Indiana company now owned primarily by Stanley Capital Partners, a London-based private-equity firm, with Goldman Sachs Alternatives as a minority investor.

Let that sink in:
Idaho’s emergency response, paid for by Idaho taxpayers, is now funneled through a private equity-owned chemical company headquartered 1,800 miles away.

Documents from the Idaho State Board of Examiners show the state bought over 71,000 gallons of Natrix in 2024 at about $40.67 per gallon, totaling $2.89 million in chemical alone.
Add in contractors like Clean Lakes, Inc., environmental monitoring, and agency costs, and the total program now tops $6.6 million for FY2025 (Board of Examiners Deficiency Warrant Request, Sept. 2025).

Necessary or Negligent?

To be fair, quagga mussels are no joke. If left unchecked, they can clog irrigation pipes, hydroelectric intakes, and water delivery systems, causing billions in damage across the West.

But that doesn’t excuse poor science or blind spending.
When the evidence is thin (one mussel, a handful of larvae), and the solution is radical (mass copper dumping), it’s our duty to ask hard questions especially when out-of-state corporations stand to profit.

Even SePRO’s own copper treatments have raised red flags. Peer-reviewed studies show they can wipe out up to 90% of aquatic invertebrates downstream, kill fish, and leave toxic sediment that lingers for years (Environmental Toxicology & Chemistry, 2025 study summary).
The question isn’t just whether quagga mussels threaten Idaho’s rivers, it’s whether the cure may be worse than the disease.

For the state’s own summary of the ongoing project, see:
ISDA Snake River Quagga Mussel Response Page
KTVB coverage on 51% reduction claim, Sept. 2025
Boise State Public Radio: “Quagga Battle Continues”

ISDA Report, Idaho Capital Sun. Idaho State Board of Examiners voted unanimously”, Idaho Dept of Agriculture,

The Unseen Guardians of the Snake River

Emerging research shows that native fish like white sturgeon and trout naturally consume quagga mussel veligers, the microscopic larvae that drift through the water column. These fish act as the river’s built-in filter, helping keep invasive populations in check simply by feeding as they always have. Studies from the Great Lakes and Columbia River systems have documented sturgeon ingesting zebra and quagga mussels and trout feeding on veligers among their zooplankton diet (Great Lakes Fishery Commission, 2022, USGS Aquatic Invasive Species Research, 2021, Idaho Fish and Game, 2023).

So it’s fair to ask: Have we wiped out the very predators that nature provided to control the problem?
When copper kills off sturgeon, trout, suckers, and the smaller invertebrates that feed them, we may be destroying the natural defense line, while the quagga veligers drift downstream, untouched.

Accountability Isn’t Anti-Agriculture, It’s Pro-Idaho

Whenever someone dares question these decisions, they’re accused of being “anti-agriculture” or “anti-science.”
That’s nonsense.
This isn’t about politics or partisanship, it’s about stewardship.

Idaho’s farmers, ranchers, and taxpayers deserve transparency:

If government is quick to act but slow to explain, we don’t have a quagga problem, we have a governance problem.

Final Thought

In our rush to “save” the Snake River, we may have silenced the very life that once protected it. The white sturgeon, Idaho’s ancient river guardian, now lies lifeless in the same waters it once kept clean. Trout, suckers, and other native species that filtered and fed on quagga veligers are gone, wiped out by the very treatment meant to restore balance.

After three years and millions of dollars, the quagga remain, but the fish are dead.
So what exactly have we saved?

Doing the same thing over and over and expecting different results isn’t leadership, it’s insanity.

True stewardship means asking the hard questions before we pour another gallon of poison into the lifeblood of Idaho. Because once the river’s balance is gone, no amount of copper, contracts, or corporate control can bring it back.

If we don’t protect our waters with wisdom, courage, and truth, we’ll wake up one day to find we’ve lost not just our fish, but our sovereignty, one contract at a time.

My interview discussing this issue with Liberty Talks, Miste Karlfeldt.

Click Here» Quagga Interview

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