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Water Rights/Case Library

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Clean Wisconsin, Inc. v. DNR, 2021 WI 71 and 2021 WI 72

Why this matters: The legislature passed a law that seemed to strip the DNR of power to protect water, and 2 attorneys general disagreed about whether it worked. In 2021 the Wisconsin Supreme Court said it didn’t. Lake Beulah survived. This is the most consequential recent development in Wisconsin water law, and it is confirmed good law as of July 2026.

Doctrine: Public trustpublic trust doctrineThe state holds navigable waters and the land beneath them for everyone, and cannot sign that away. Wisconsin's version is written into the state constitution and is among the strongest in the country., agency authority, high capacity wellshigh capacity wellIn Wisconsin, a well (or all wells on 1 property combined) capable of pumping 100,000 gallons a day or more. These need DNR approval. An ordinary house well does not., Act 21

Case name and citation

Clean Wisconsin, Inc. v. Wisconsin Department of Natural Resources, 2021 WI 71 (CAFOCAFOA large industrial livestock operation. In Wisconsin water disputes it is usually the source of the nitrate and bacteria showing up in neighbors' wells. permit conditions), and Clean Wisconsin, Inc. v. Wisconsin Department of Natural Resources, 2021 WI 72 (high capacity wellshigh capacity wellIn Wisconsin, a well (or all wells on 1 property combined) capable of pumping 100,000 gallons a day or more. These need DNR approval. An ordinary house well does not., the Central SandsCentral SandsA sandy farming region in central Wisconsin with heavy irrigation. It is the epicenter of the state's groundwater drawdown fights. case, No. 2018AP59). Both decided the same day.

Court and year

Supreme Court of Wisconsin. Both decided July 8, 2021. Each by a 4-justice majority, joined by an unusual mix of justices. Opinion in 2021 WI 72 by Justice Dallet. Justice R.G. Bradley dissented.

One-line holding

Wis. Stat. 227.10(2m) does not strip the DNR of authority the legislature already granted it, so the DNR retains explicit statutory authority both to impose monitoring and animal unit conditions on a CAFOCAFOA large industrial livestock operation. In Wisconsin water disputes it is usually the source of the nitrate and bacteria showing up in neighbors' wells. permit (2021 WI 71) and to consider the environmental effects of proposed high capacity wells and deny or condition them (2021 WI 72), and Lake Beulah remains good law.

Facts

The 2 cases share a legal question and have different facts.

2021 WI 72, the wells case. Clean Wisconsin and the Pleasant Lake Management District challenged the DNR’s approval of 8 high capacity well permits in the Central SandsCentral SandsA sandy farming region in central Wisconsin with heavy irrigation. It is the epicenter of the state's groundwater drawdown fights. region in October 2016.

The DNR’s own record said the wells would harm nearby lakes and streams by consuming groundwater that would otherwise feed them. The DNR approved them anyway, concluding it had no authority to consider those environmental effects.

That conclusion rested on Wis. Stat. 227.10(2m), enacted in 2011 as part of Act 21. It bars an agency from implementing or enforcing any standard, requirement, or permit condition unless “explicitly required or explicitly permitted” by statute or by a properly promulgated rule.

The 8 wells did not require formal environmental review under the separate statutory trigger for that.

Former Attorney General Schimel had opined that after Act 21 the DNR lost the authority Lake Beulah recognized. Attorney General Kaul opined the opposite. The DNR followed the narrower reading.

The circuit court vacated the approvals.

2021 WI 71, the CAFO case. The question was whether the DNR had explicit authority to impose off-site groundwater monitoring requirements and a maximum animal unit limit as conditions on a water pollution permit for the Kinnard Farms concentrated animal feeding operation.

Does Wis. Stat. 227.10(2m) bar the DNR from considering environmental effects and imposing permit conditions where the authority derives from broad statutory grants and the constitutional public trust doctrinepublic trust doctrineThe state holds navigable waters and the land beneath them for everyone, and cannot sign that away. Wisconsin's version is written into the state constitution and is among the strongest in the country. rather than from narrowly specific statutory text?

Holding and reasoning

In both cases the court held the DNR had explicit authority, and that Act 21 did not take it away.

The court read “explicitly required or explicitly permitted” as satisfied when the authority is expressly conferred and clear. It does not demand that a statute enumerate every specific condition an agency might impose.

In 2021 WI 72 the majority framed the issue as “whether section 227.10(2m) commands a different conclusion here than in Lake Beulah,” and concluded it does not.

The DNR’s authority comes primarily from Wis. Stat. 281.12, along with 281.11, read together with the legislature’s delegation of the state’s constitutional public trust duties. That is a broad grant, and breadth is not the same as absence.

The majority’s key sentences: “The DNR’s authority to consider the environmental effects of proposed high capacity wells, while broad, is nevertheless explicitly permitted by statute.” And: “Section 227.10(2m) does not strip an agency of the legislatively granted explicit authority it already has. Nor does it negate a more targeted directive from the legislature to liberally construe the specific statutes that expressly confer an agency’s authority.”

The court affirmed the circuit court with a modification, directing that all 8 well applications be remanded to the DNR.

In 2021 WI 71, the court likewise held the DNR had explicit authority to impose the monitoring and animal unit conditions to protect water quality.

Justice R.G. Bradley’s dissent was pointed. In her view the DNR “has no explicit authority to conduct an environmental impact review for any of the eight high capacity wells at issue,” because the legislature never explicitly required or permitted such reviews and no statute or lawfully promulgated rule provides that authority. A dissent in the companion case described the outcome as calamitous.

Why it matters

For a decade, Wisconsin water law had an open question at its center: had the legislature quietly repealed the DNR’s ability to protect surface water from groundwater pumping?

The stakes were concrete. In the Central Sands, decades of irrigation pumping have measurably lowered lakes and dried stream reaches. If the DNR could not weigh those effects, the only limit on new wells would be the paperwork.

The answer in 2021 was no, and the reasoning matters as much as the result. The court held that a general limit on agency power does not silently erase specific authority the legislature previously granted, particularly where a constitutional trust duty runs alongside it.

Lake Beulah survives, expressly. The DNR retains both the authority and the duty to consider whether a proposed high capacity well may harm waters of the state. See 2011-lake-beulah-v-dnr.md.

The structural echo runs all the way back to Muench (1952), where the court held the legislature could not delegate away the state’s obligation to consider public rights in navigablenavigable in factWisconsin's test for whether a waterway is public. Roughly: can a small recreational boat float on it on a regularly recurring basis. A lot of modest creeks qualify. waters. See 1952-muench-v-public-service-commission.md. The trustee cannot stop being a trustee by statute.

The narrow margins are worth registering honestly. Both cases were 4 to 3, with an unusual coalition. A different court composition could revisit the Act 21 question. Watch it.

What it means for a landowner today

This is live, current Wisconsin law with direct consequences for a purchase.

Practical translation:

  • The DNR can deny or condition a high capacity well approval to protect nearby lakes and streams. That protection is real as of July 2026.
  • The duty is still evidence-triggered under Lake Beulah. Someone has to put concrete scientific evidence of potential harm in front of the DNR while the application is pending.
  • If you plan a large withdrawal (irrigation on acreage, a commercial operation), expect environmental review of surface water impacts and budget for the possibility of conditions or denial.
  • If you are buying near a lake you want protected, this is the mechanism, and it requires participation.
  • CAFO neighbors: 2021 WI 71 confirms the DNR can impose groundwater monitoring and herd size limits in a water pollution permit. That matters for rural parcels near large dairy operations, where nitratenitrateFertilizer and manure that has leached into groundwater. Above 10 milligrams per liter it is a health risk, especially for infants, and you cannot fix your neighbor's fields. contamination of private wells is a documented Wisconsin problem.

What to verify before closing:

  • Pending and existing high capacity well approvals near the parcel.
  • Whether the parcel is in the Central Sands or another area with documented drawdowndrawdownHow far the water level drops while a pump is running..
  • Whether any CAFO operates nearby, and nitratenitrateFertilizer and manure that has leached into groundwater. Above 10 milligrams per liter it is a health risk, especially for infants, and you cannot fix your neighbor's fields. levels in the parcel’s well.
  • Well water testing for nitrate, bacteria, and arsenic at minimum, regardless of what the seller says.

Who verifies: the Wisconsin DNR for permits and CAFO records, a certified lab for water testing, and a hydrogeologisthydrogeologistA geologist who specializes in groundwater. Worth hiring for acreage, tricky geology, or any large planned withdrawal. for drawdowndrawdownHow far the water level drops while a pump is running. questions.

Subsequent history / is it still good law

Both decisions are good law as of July 2026. They remain the controlling authority on the scope of Wis. Stat. 227.10(2m) as applied to DNR water authority, and they expressly preserve Lake Beulah.

Following the decisions, the 8 Central Sands well applications went back to the DNR for review consistent with the opinions.

The Act 21 question is not permanently closed. Both cases turned on 4-justice majorities, and the scope of agency authority under Act 21 continues to generate litigation in other contexts. Legislative amendment remains possible.

Date every fact here as of July 2026 and re-check before relying on it for a transaction.

Sources

Research demo, not legal advice. Facts current as of July 2026. Water law is state-specific and moves quickly, so confirm anything you plan to act on with a licensed attorney and the relevant state agency.