Madison WI Water Restrictions 2026

Current water restrictions in Madison, Wisconsin

Madison is currently under no active mandatory water restrictions, though the Madison Water Utility is asking residents to follow voluntary odd/even watering guidance limiting outdoor irrigation to 3 days per week. The voluntary guidance was issued by the Madison Water Utility in response to monitoring data showing aquifer levels at the Mt. Simon sandstone aquifer sitting at 88% of normal and Dane County classified as D0 (abnormally dry) on the U.S. Drought Monitor.

The Mt. Simon sandstone aquifer is the sole source of drinking water for Madison, supplied through a network of 23 municipal groundwater wells distributed across the city. Unlike surface-water systems that respond immediately to rainfall, aquifer recovery is slow — a dry stretch measured in weeks can translate to drawdown that takes months to reverse. The 88% level is not yet a crisis, but it is the threshold that triggers voluntary conservation messaging under Madison Water Utility's tiered shortage response framework.

At the state level, Wisconsin is not under any active drought emergency. The Wisconsin Department of Natural Resources reports normal conditions statewide, meaning the voluntary guidance in Madison is locally driven rather than state-mandated.

Practically speaking: a resident with an odd-numbered street address can water on Monday, Wednesday, and Friday before 10:00 AM or after 5:00 PM. A resident with an even-numbered address uses Tuesday, Thursday, and Saturday in the same time windows. Watering a garden on a Wednesday morning is fine for odd-address households — just keep it within the recommended hours. Because this is a Stage 1 voluntary program, no fines apply for deviation, but the utility asks for community cooperation to keep aquifer levels from declining further before mandatory measures become necessary.

Madison's watering days and hours

The odd/even split works on your physical street address number. Odd-numbered addresses (1, 3, 5, 101, 1003, etc.) are assigned Monday, Wednesday, and Saturday. Even-numbered addresses (2, 4, 100, 1002, etc.) are assigned Tuesday, Thursday, and Sunday. Friday is designated as a no-watering day under the voluntary schedule to give the distribution system and aquifer pressure a rest midweek. Sunday is an off day for odd-address properties.

Multi-family residential buildings and commercial properties should use the street address of the primary entrance to determine their odd or even designation. A large apartment complex on an odd-numbered address on Gorham Street, for example, would follow the odd-address calendar. Commercial irrigation controllers should be programmed accordingly — Madison Water Utility's commercial accounts team can assist with controller scheduling at the main utility phone line.

Madison's urban tree canopy includes significant populations of bur oak (Quercus macrocarpa), silver maple (Acer saccharinum), and honeylocust (Gleditsia triacanthos), all of which develop deep root systems but suffer stress during prolonged dry stretches. Trees planted within the last three years are especially vulnerable during a D0 abnormally dry period. Slow, deep watering at the drip line — using a soaker hose or drip emitter — is exempt from the voluntary schedule under current Stage 1 guidance and does not count against your three allotted days.

Violation fines and enforcement

Because Madison is currently at Stage 1 — voluntary guidance only — Madison Water Utility has no enforcement authority to issue citations for irrigation schedule violations. If conditions worsen and the utility declares Stage 2, odd/even watering becomes mandatory and a $100 citation applies to the first confirmed violation. Stage 2 enforcement typically involves utility field staff conducting neighborhood patrols during prohibited hours, cross-referenced with customer meter data to identify properties with elevated usage patterns inconsistent with their declared watering days.

Madison Water Utility does operate advanced metering infrastructure across the city, which allows staff to flag anomalous hourly consumption. If a complaint is filed — by a neighbor or identified during a patrol — field staff can pull interval meter data to confirm whether irrigation occurred outside allowed hours or on prohibited days. Residents who believe a citation was issued in error under a future Stage 2 declaration may request an administrative review through the Madison Water Utility billing department within 15 days of the notice date.

Other outdoor water rules

Beyond lawn irrigation, Madison Water Utility's voluntary Stage 1 guidance addresses several other outdoor uses. The following rules apply under the current voluntary framework — restrictions become enforceable if Stage 2 is declared:

• Vehicle washing: Permitted any day, but residents are asked to use a commercial car wash that recycles water, or to wash on their assigned watering days using a hose with a shut-off nozzle.
• Swimming pools: Initial pool filling is permitted but should be scheduled during off-peak hours (before 10:00 AM or after 5:00 PM). Top-off watering to compensate for evaporation is allowed any day. Madison's pool season is short — mid-June through Labor Day — and total fill volumes are relatively low compared to sunbelt cities.
• Pressure washing: Permitted for health and safety purposes (mold removal, food-service exterior cleaning). Aesthetic pressure washing of driveways and sidewalks is discouraged under Stage 1.
• Decorative fountains: Voluntary guidance asks that ornamental fountains not on a recirculating pump system be shut off during Stage 1.
• Construction water: Dust suppression and concrete curing at active job sites are exempt from the voluntary schedule. Contractors should contact Madison Water Utility for temporary meter permits on new construction accounts.
• Restaurant outdoor use: Table-washing and sidewalk hosing at restaurant patios should use the minimum water necessary; waterless cleaning methods are preferred under Stage 1 guidance.

How Madison gets its water

Madison's drinking water comes entirely from groundwater — the city operates 23 municipal wells that draw from the Mt. Simon sandstone aquifer, a deep confined aquifer that underlies much of Dane County and extends across a broad swath of the upper Midwest. This makes Madison's water supply fundamentally different from cities that depend on surface reservoirs or river intakes. There is no Lake Monona pipeline, no Yahara River pump station — the lakes and rivers that define Madison's landscape play no role in the drinking water supply system.

The Mt. Simon aquifer is a sandstone formation dating to the Cambrian period, held under pressure by confining layers of impermeable rock. Water extracted from it today entered the formation hundreds to thousands of years ago through recharge zones located far from the city. This means aquifer drawdown is not easily reversed by a week of heavy rainfall — the geology imposes a lag of months to years between surface precipitation and measurable aquifer recovery.

Madison Water Utility monitors water levels at each of the 23 well sites on a continuous basis and tracks citywide aquifer pressure against historical norms. The current reading of 88% of normal reflects a modest but meaningful drawdown relative to the 30-year baseline for this time of year. Six of Madison's wells are located in the isthmus area, drawing from the same aquifer zones that supply the Tenney Park and Maple Bluff well fields on the north and east sides of the city.

Treatment at Madison's wells focuses primarily on removing naturally occurring iron, manganese, and radium that occur in the Mt. Simon formation, rather than the organic contaminants and pathogens more common in surface-water systems. The utility operates treatment equipment at individual well houses across the city rather than at a single central plant. Finished water is distributed through approximately 900 miles of water main throughout Madison and portions of surrounding municipalities served under contract.

HOA and brown lawn protections

Wisconsin does not have a specific statute equivalent to Colorado's CRS § 37-60-126 or Florida's FS § 720.3075 that explicitly prohibits homeowners associations from fining residents for brown lawns during declared water emergencies. However, Wisconsin's general HOA governance framework under Chapter 181 of the Wisconsin Statutes (nonprofit corporations) and Chapter 703 (condominiums) requires that HOA rules and enforcement actions be reasonable and applied consistently. An HOA that fines a homeowner for a brown lawn while Madison Water Utility is actively requesting residents to reduce irrigation may face a reasonableness challenge in small claims court, particularly if the homeowner can document compliance with the utility's voluntary guidance.

If your HOA has threatened enforcement for lawn appearance during the current voluntary conservation period, document every watering session, save any Madison Water Utility communications about the Stage 1 guidance, and submit a written response to your HOA board before any fine is assessed. You may also contact Madison Water Utility at 608-266-4654 to request written confirmation of the current voluntary guidance that you can include in your HOA response.

Template response letter:

"Dear [HOA Board],

I am writing in response to your notice regarding the appearance of my lawn at [address]. Madison Water Utility is currently requesting voluntary compliance with Stage 1 water conservation guidance, which limits outdoor irrigation to three days per week during restricted hours. My lawn's current condition is a direct result of following this guidance. I am maintaining my lawn in good faith under the direction of a municipal water authority, and I respectfully request that the HOA suspend enforcement of any landscaping requirement that conflicts with the Madison Water Utility's conservation program. I am happy to provide documentation of the utility's current guidance upon request.

Sincerely, [Your name]"

Keeping your lawn alive on restricted water

Madison sits firmly in the cool-humid climate zone, and the grasses that dominate residential lawns here reflect that. The following table shows how the most common Madison-area grasses respond to a 3-day-per-week watering schedule during a D0 dry period:

Madison's summer growing season peaks in July and early August, when evapotranspiration rates can exceed one inch per week during hot, dry stretches. Under the current 3-day voluntary schedule, homeowners with Kentucky Bluegrass or perennial ryegrass lawns should apply a full half-inch per session on their assigned days — rather than light daily misting — to encourage the deep root growth that improves drought resilience. Mowing height should be raised to 3.5 inches during dry periods to reduce moisture loss from the soil surface.

Fine fescue is the logical candidate for overseeding or lawn renovation in Madison given its comparatively low water demand and tolerance for the region's cold winters, periodic ice cover, and heavy clay-loam soils found in many Dane County neighborhoods. Madison Water Utility periodically offers rebate incentives for turf reduction and native plant installation; contact the utility or check cityofmadison.com/water for current program availability before investing in a full lawn overhaul.

Madison water restriction FAQ

What days can I water my lawn if my address is odd-numbered in Madison?

If your street address ends in an odd number, the voluntary schedule assigns you Monday, Wednesday, and Saturday as your watering days. Watering should take place before 10:00 AM or after 5:00 PM on those days. Friday is a no-watering day for all addresses under the voluntary Stage 1 guidance. Because this is currently voluntary, there are no fines for deviation — but Madison Water Utility is asking all residents to participate to protect aquifer levels.

What is the current condition of the Mt. Simon aquifer under Madison?

As of the most recent monitoring data, the Mt. Simon sandstone aquifer — which supplies all 23 of Madison's municipal wells — is at 88% of its normal level for this time of year. Dane County is classified as D0 (abnormally dry) on the U.S. Drought Monitor. This is the trigger for Stage 1 voluntary conservation. The aquifer is not in crisis, but the geology of a deep confined sandstone formation means levels respond slowly to both extraction increases and recovery.

Can I wash my car at home in Madison right now?

Yes. Under the current Stage 1 voluntary guidelines, residential car washing at home is permitted. Madison Water Utility asks that you use a hose with a shut-off nozzle and, where possible, wash on one of your designated watering days to consolidate outdoor water use. Commercial car washes that use water recirculation systems are the more conservation-conscious option and are not subject to any scheduling guidance.

Does Madison Water Utility use smart meters to detect irrigation violations?

Yes. Madison Water Utility has deployed advanced metering infrastructure (AMI) across the city, which records water usage in hourly intervals rather than as a monthly total. If Stage 2 mandatory restrictions are ever declared, utility staff can use interval meter data to identify properties with consumption spikes during prohibited watering hours, even without a direct observation by a field inspector. At current Stage 1, this data is used for analysis and customer education, not enforcement.

Are there any rebates for reducing turf or installing rain barrels in Madison?

Madison Water Utility has offered rebate programs in the past for rain barrel installation and water-efficient irrigation upgrades. The City of Madison also participates in periodic regional water conservation incentive programs through Dane County. Program availability and funding levels change seasonally — contact Madison Water Utility directly at 608-266-4654 or visit cityofmadison.com/water for current offerings. The We Are Water MN regional initiative (a neighboring-state model) has inspired similar turf-reduction conversations in Wisconsin, though a direct Madison equivalent should be confirmed with the utility.

Can I water newly planted grass seed more than three days a week?

New sod and grass seed typically require an establishment watering period that exceeds the voluntary 3-day schedule. Madison Water Utility provides a 30-day establishment window for newly seeded or sodded areas, but homeowners should register their project by calling 608-266-4654 before beginning daily establishment watering. You will need to provide the planting date and the area involved. This exception applies to new installations only — overseeding an existing lawn does not automatically qualify, though the utility reviews requests case by case.

Does my homeowners association have to allow me to let my lawn go dormant?

Wisconsin lacks a specific statute prohibiting HOA enforcement during water conservation events, unlike some other states. However, an HOA's governing documents must be applied reasonably and consistently under Wisconsin law. If Madison Water Utility's voluntary guidance is in effect and your lawn has gone dormant as a result of following that guidance, document your compliance carefully and submit a written response to your HOA board before any fine is assessed. Referencing the utility's official conservation guidance — available at cityofmadison.com/water — in your response strengthens your position considerably.

What triggers a move from Stage 1 voluntary to Stage 2 mandatory restrictions in Madison?

Madison Water Utility escalates from Stage 1 to Stage 2 based on continued aquifer level decline, a worsening U.S. Drought Monitor classification for Dane County (moving from D0 to D1 Moderate Drought or beyond), or a combination of high-demand conditions such as an extended heat wave driving citywide consumption above the system's sustainable withdrawal rate. Stage 2 makes the odd/even schedule mandatory and introduces $100 citations for first violations. The utility publishes stage status updates at cityofmadison.com/water and notifies media when a stage change is declared.

When will water restrictions end in Madison?

Current No Active Restrictions restrictions are in effect through December 31, 2026. Monitor https://www.cityofmadison.com/water for the latest status.

Can I hand water during Madison water restrictions?

Yes. Hand watering with a hose fitted with a shut-off nozzle is generally allowed on any day during permitted hours. Drip irrigation and soaker hoses are also typically exempt from the day-of-week schedule. Confirm specifics with Madison Water Utility.

How do I report a water waste violation in Madison?

Contact Madison Water Utility at 608-266-4654 or visit https://www.cityofmadison.com/water. Most utilities accept online reports and respond within 48 hours.