Legalectric

Great, just great. “About” a million gallons of Minnesota Power’s Boswell coal plant’s coal ash wastewater dumped into Blackwater Lake (appropriate name!), a pond connected to the Mississippi River, a pond where the plant’s cooling water is drawn from, and also a pond where people fish!

The good news is that MP didn’t do an Xcel and wait for MONTHS to disclose. It appears that MP got on the horn almost instantly after the spill was discovered and reported it.

There’s supposedly a press release, but it’s not posted on their “Press Release” page, so I asked about it. MP did get back to me and shared its statement — THANK YOU!

From KAXE:

1M gallons of coal ash wastewater spilled at Cohasset coal plant

Here’s what the STrib has to say:

One million gallons of coal ash wastewater spill at Minnesota Power coal plant

The Duluth-based electric utility said an unknown amount of polluted water had reached a nearby lake after a pipe leaked. 

By Walker Orenstein and Chloe Johnson Star Tribune

July 17, 2024 — 9:39am

Minnesota Power said about 1 million gallons of coal ash wastewater spilled at its large coal plant in Cohasset, Minn., pouring out over land with at least some reaching nearby Blackwater Lake.

The Duluth-based electric utility said in a news release that a pipeline leaked on Tuesday at the Boswell Energy Center that transfers wastewater from a pond containing the byproducts of coal combustion to the plant where it is used as process water.

Minnesota Power said the leak has been contained and the company is monitoring for potential impacts to water and wildlife, and also notified the Minnesota Pollution Control Agency and the Environmental Protection Agency.

MPCA is investigating the spill, spokeswoman Andrea Cournoyer said in a statement.

According to a report to the State Duty Officer, the spill was originally discovered at 11:15 a.m. Tuesday. The report was made 15 minutes later, and Minnesota Power said a “loss of pump pressure” caused the spill.

Coal ash contains pollutants including mercury, cadmium and arsenic, which can pollute water and air if not properly managed, according to the EPA.

The 674-acre Blackwater Lake is a reservoir on the Mississippi River, according to the state Department of Natural Resources. Lake levels are controlled by the Pokegama Dam operated by the U.S. Army Corps of Engineers.

It’s still unclear how far the material may have spread, or how long the pipeline was leaking. Walter Shadley, Cohasset’s public works and utility supervisor, said the town does not draw its drinking water from the Mississippi.

Minnesota Power draws water from the lake to cool its plant and releases heated water. The DNR describes the lake as “essentially a flooded river channel.” A bay where the DNR said the coal plant discharges heated water attracts fish and is popular with anglers, according to the agency.

The Boswell plant is Minnesota Power’s largest electricity source. Its two operating coal-fired units are capable of producing 932 megawatts of electricity. One unit at the plant is scheduled to retire in 2030, and the second is slated to close in 2035 as the utility transitions to carbon-free power to meet its climate goals and state regulations for a carbon-free grid by 2040.

I know I’ve been preoccupied, struggling to keep up and not doing a very good job of it, but how did I not know that the Prairie Island Nuclear Generating Plant was shut down for the winter and the river has completely frozen over?? Granted this is proof positive that we don’t “NEED” this generation, but what does it mean for the river and those dependent on that open water? Fish, eagles, other wildlife??? Maybe the plant closure is why the 2024 nuclear notice came out late (no calendar)?

That’s from MPR on November 22, 2023 about this shutdown on October 19, 2023, over a month later:

Electrical trouble shuts down Prairie Island reactor

Odd, it took the STrib that long too, November 22, 2023. Guess Xcel belatedly sent out a press release?

Xcel’s Prairie Island nuclear plant will be out of commission until January

So something between generator and substation? Something similar may have happened to Unit 2 last May:

Nuclear reactor at Xcel’s Prairie Island plant remains offline after ‘unusual event’ reported Saturday

Turned out it wasn’t “just” a transformer — there was a problem with the “main feed water pump” that had to be fixed too: “The licensee determined that the fire alarms were caused by the electrical transient which occurred due to the fault on the Unit 2 main transformer” and then:

From NRC reports:

And here’s the Notification:

More info needed. It’s a cold winter Sunday, good for googling.