The Non-Financial Ledger: What the Numbers Don’t Capture

Lake Erie is the shallowest and most biologically productive of the five Great Lakes. It is the primary drinking water source for roughly 11 million people across Michigan, Ohio, Pennsylvania, New York, and Ontario. It is where people fish for walleye. Where kids swim in the summer. Where communities along its southwestern shore have watched industry strip away the health of the water for generations.

When DTE Electric’s Monroe Power Plant, a massive coal-fired facility sitting on the western shore of Lake Erie in Monroe, Michigan, pumped iron-contaminated water through its outfall pipe at 3.56 times the legal concentration limit, there was no siren. No evacuation. No press conference. There was a line on a government form called a Discharge Monitoring Report, filed by DTE itself, showing the number 4.56 milligrams per liter against a permitted maximum of 1 milligram per liter.

Then there was silence for three years. The penalty was proposed in 2025.

The people who live downstream from the Monroe plant do not have toxicologists on retainer. They do not have environmental lawyers. Many of them are working-class Michiganders in a region that has been told, for decades, that the coal plant means jobs and that the jobs mean you put up with the rest. The plant sits in Monroe County, a community that has weathered industrial decline and has historically had limited political leverage to push back against a utility that employs hundreds and lobbies in Lansing.

The cracked containment wall is its own story. An EPA inspection on August 29-30, 2023 found that the Inactive Bottom Ash Basin, a pit holding the toxic residue left behind after coal is burned, was leaking through its containment wall into the discharge channel at multiple locations both upstream and downstream of Monitoring Point 001B. Bottom ash is coal combustion residue. It can contain arsenic, mercury, selenium, lead, and other heavy metals. DTE’s permit required it to monitor and report what was coming out of that monitoring point. For April, May, and June 2023, DTE filed its Discharge Monitoring Reports for that outfall without including any data from Monitoring Point 001B.

Three months of nothing. No data from a leaking coal ash basin draining into the channel that leads to Lake Erie. The people whose tap water comes from that lake had no idea.

And then there is the matter of the water samples. On August 29, 2023, EPA inspectors watched a DTE worker collect water samples for oil and grease testing using a plastic container on the end of a pole. Federal law, specifically EPA Method 1664 under 40 C.F.R. Part 136, requires that oil and grease samples be collected in glass containers, because oil and grease can adhere to plastic and produce falsely low readings. DTE’s monitoring data for oil and grease, collected in plastic, may have been systematically understating contamination levels. For how long, the consent order does not say.

Nobody in Monroe got a letter about that.

Legal Receipts: What the Federal Documents Actually Say

The following are direct factual statements from EPA Docket No. CWA-05-2025-0001, the Consent Agreement and Final Order between the U.S. Environmental Protection Agency, Region 5, and DTE Electric Company. These are not allegations. DTE Electric signed this document.

The document also notes, in Paragraph 7, that DTE Electric “neither admits nor denies the factual allegations in this CAFO.” That is standard legal boilerplate in consent agreements. The violations are documented in the permit exceedance data DTE itself submitted. DTE’s own monitoring reports are the receipts.

The Violation Table: By the Numbers

Societal Impact Mapping

Environmental Degradation

Lake Erie has a documented history of ecological crisis. The lake suffered a complete oxygen dead zone in parts of its central basin for decades due to industrial and agricultural pollution. Recovery has been slow, partial, and fragile. Iron in aquatic ecosystems, at elevated concentrations, can reduce dissolved oxygen, harm fish gills, smother benthic invertebrates, and contribute to algal bloom dynamics. Thermal pollution, the excess heat DTE discharged twice over its legal limit, directly reduces the dissolved oxygen capacity of water, stresses cold-water fish species, and can alter the ecological composition of the discharge zone in Lake Erie’s western basin.

The coal ash leaks are the longer-term problem. Bottom ash and fly ash from coal combustion contain heavy metals that do not break down. They accumulate in sediment, in fish tissue, and ultimately in the food chain. The fact that DTE’s inactive coal ash containment basin was observed leaking at multiple points along its containment wall, and that those leaks were flowing through a discharge channel toward Lake Erie while DTE filed monitoring reports without any data for that outfall, means that the full extent of what entered the lake during April, May, and June 2023 is unknown.

Public Health

Monroe County draws municipal drinking water from the region. The communities of Monroe, Frenchtown Township, and surrounding areas rely on water infrastructure that ultimately interfaces with the Lake Erie watershed. Elevated iron in drinking water is a known health and infrastructure concern: it can stain plumbing, create conditions favorable to bacterial growth, and at sufficient concentrations cause gastrointestinal effects. Water treatment plants are designed to handle baseline iron levels, not chronic spikes caused by upstream industrial discharge.

The oil and grease sampling violation introduces a distinct public health dimension. If DTE’s contractors were collecting oil and grease samples in plastic containers, and oil and grease preferentially adheres to plastic rather than remaining in solution, the reported concentrations would be artificially low. Monitoring data used to demonstrate permit compliance would be compromised. The EPA inspection in August 2023 caught this in real time. The question of how long it had been occurring before inspectors arrived is not answered in the consent order.

Economic Inequality

The Monroe Power Plant is one of the largest coal-fired power plants in the United States by capacity. DTE Energy, its parent company, is a Fortune 500 corporation with tens of billions of dollars in assets and annual revenues exceeding $24 billion. The penalty assessed for four Clean Water Act violations, documented across multiple inspection events and DTE’s own self-reported data, was $40,489.65.

The maximum Class II civil penalty allowable under the Clean Water Act for violations after November 2, 2015, is $25,847 per day of violation up to a total of $323,081. DTE paid approximately 12.5% of the statutory ceiling. The consent order acknowledges that the EPA considered DTE’s “ability to pay” in setting the penalty. A corporation reporting over $24 billion in revenue was assessed a fine smaller than the average annual salary of a wastewater treatment plant operator in Michigan.

Communities downstream from industrial facilities are disproportionately lower-income and non-white. Environmental justice research consistently documents that facilities with compliance histories like DTE Monroe’s are clustered near communities with the least political and legal resources to fight back. The $40,000 fine does not compensate those communities. It does not remediate the lake. It funds the federal government’s general treasury and allows DTE to close the matter without admitting wrongdoing.

The “Cost of a Life” Metric

What Now: Who to Watch and What to Do

The consent order was signed by Daniel Casey, Plant Manager, DTE Electric Company Monroe Power Plant, and Michael D. Harris, Division Director, Enforcement and Compliance Assurance Division, U.S. EPA Region 5. The Final Order was issued by Ann L. Coyle, Regional Judicial Officer, U.S. Environmental Protection Agency Region 5.

DTE Electric is a wholly owned subsidiary of DTE Energy Company, a publicly traded corporation (NYSE: DTE) headquartered in Detroit, Michigan. Its board of directors and executive leadership are publicly listed.

The docket number for this action is CWA-05-2025-0001. Under Section 309(g)(4)(C) of the Clean Water Act, any person who commented on the proposed penalty order may petition for judicial review. The 30-day public comment window is part of the standard consent order process under 40 C.F.R. § 22.45.

File a public comment on EPA consent orders involving facilities near you. The CWA requires public notice and a comment period before consent orders become final. That window is your legal right to demand a higher penalty or additional remediation. Go to EPA Region 5’s docket system and search for open comment periods.

Connect with Great Lakes environmental organizations doing direct monitoring work. Groups like the Sierra Club’s Michigan Chapter, Freshwater Future, and the Alliance for the Great Lakes run citizen science and legal advocacy programs. They need bodies, money, and attention. Donate if you can. Show up if you can’t donate.

Contact your Michigan state legislators and demand that EGLE be adequately funded to conduct routine, unannounced facility inspections. The EPA found the leaking coal ash containment wall during a compliance inspection in August 2023. The leaks were already flowing into the discharge channel. Inspections catch violations. Budget cuts to regulators mean fewer inspections. That math works in DTE’s favor, not yours.

If you live near Monroe County, attend Monroe City Council and Monroe County Commission meetings. Ask elected officials on record where they stand on DTE’s compliance history and whether they have asked EGLE or the EPA to conduct additional monitoring downstream of the Monroe Power Plant. Make them say something. Make them say it in public.

Support mutual aid networks in environmental justice communities near Lake Erie’s western basin. Residents of communities with limited political capital are the ones who bear the actual health costs of industrial non-compliance. Mutual aid organizations doing water testing, health screening, and legal aid in those communities are doing the work that $40,000 EPA penalties do not fund.