Lawn by Season
Mandatory Year-Round Watering Schedule
Through Year-round permanent schedule

Calgary Water Restrictions 2026

Published: May 1, 2026

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City of Calgary · Alberta

Restrictions Active - Mandatory Year-Round Watering Schedule

3

Days/Week

7:00 PM – 10:00 AM (overnight and morning only)

Allowed Hours

Education-first approach — warnings, then fines under Water Utility Bylaw 40M2006

Fine

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Current restrictions

Calgary's year-round bylaw permits sprinkler and irrigation watering up to 3 days per week, up to 45 hours per week total, between 7:00 PM and 10:00 AM. No daytime sprinkling is permitted in order to reduce evaporation.

What is still allowed

💧 Hand watering

Any time, any day with a hand-held hose fitted with an automatic shut-off nozzle.

🌿 Drip irrigation & soaker hoses

Permitted any time. Drip is exempt from sprinkler hour windows.

🥬 Vegetable gardens

Watering vegetable gardens by hand or drip is permitted at any time, even during the strictest stages.

🪣 Rain barrels

Rainwater collected on your own property is unrestricted and may be used at any time for any purpose.

Fines & enforcement

Education-first approach — warnings, then fines under Water Utility Bylaw 40M2006

The City has stated it will not be 'draconian' in early enforcement. Bylaw officers prioritise education and warnings before laying charges. Repeat or wilful violations attract escalating fines under the Water Utility Bylaw.

Effective: Approved April 29, 2026 (Water Utility Bylaw 40M2006)

🏠 HOA / condo rules

Alberta condominium corporations and HOAs cannot impose landscape rules that conflict with municipal bylaws. The City of Calgary's mandatory schedule supersedes any condo or HOA bylaw requiring lawn watering outside the permitted window.

Why these restrictions exist in Calgary

Calgary City Council approved a mandatory year-round outdoor watering schedule on April 29, 2026, voting 10-5 as part of the 2026 Water Efficiency Plan. This is NOT a drought restriction — it is a permanent bylaw change under the Water Utility Bylaw (40M2006). The schedule allows sprinkler and irrigation watering up to 3 days per week for up to 45 hours per week total, during cooler overnight and morning hours (7 PM to 10 AM) to reduce evaporation. The plan targets a 20% reduction in per-capita water demand by 2040. Calgary's water security is under pressure due to limited supply, rapid population growth, and aging infrastructure. The Bearspaw South Feeder Main — which carries 60% of all treated water — has required 3 emergency shutdowns in the past 2 years, including a December 2025 burst through a major roadway. The city lost 22% of its treated water to leaks in 2024. Enforcement takes an education-first approach — the city has stated it will not be 'draconian' in early enforcement. The plan also invests $354 million over 4 years in leak detection and pipe renewal, and accelerates water metre replacement. Exemptions: newly planted trees, shrubs and sod, and food-producing crops (vegetable gardens) are exempt from the schedule. Water Managed Sites (WMS) with certified smart irrigation systems have greater flexibility under Stage 1 if drought restrictions are ever called separately. Several surrounding municipalities (Airdrie, Okotoks, Cochrane, Chestermere, Strathmore) already have similar mandatory schedules. Calgary is catching up to regional norms.

Supply: Bow River basin snowpack 65–75% of normal; Bearspaw South Feeder Main reliability concerns

How to keep your Calgary lawn alive

10 tips for Calgary homeowners.

Identify your assigned days first — even addresses water Tue/Thu/Sat, odd addresses water Wed/Fri/Sun. Programme your controller to match.

Set sprinklers to run between 5:00 AM and 10:00 AM — deep watering before sunrise has the lowest evaporation loss in Calgary's dry climate.

Mow at 75–100 mm to shade the soil and reduce evapotranspiration. Calgary's Chinook winds desiccate short turf rapidly.

Apply a long, deep watering (25 mm) once per session rather than light daily waterings — deep roots survive Calgary's summer heat better than shallow ones.

Skip your scheduled day after any 10 mm+ rainfall — a rain gauge prevents wasted watering.

Install a rain barrel on a downspout — captured rainwater is unrestricted and ideal for raised beds, vegetable gardens, and shrubs.

Convert parking strips and tree wells to Buffalo Grass, native fescue blends, or xeriscape — the City of Calgary offers rebates through YardSmart.

Newly planted trees, shrubs, and sod are exempt from the schedule during establishment — keep documentation in case of bylaw inquiry.

Vegetable gardens (food-producing crops) are exempt — water any day, any time with hand or drip irrigation.

Monitor calgary.ca/water for stage announcements — drought stages can layer on top of the year-round schedule if Bow River levels drop further.

Calgary water restriction FAQs

Can I water my lawn in Calgary right now?
Yes, on your assigned days. Calgary's mandatory year-round outdoor watering schedule (approved April 29, 2026, under Water Utility Bylaw 40M2006) allows sprinkler watering up to 3 days per week. Even-numbered addresses water on Tuesday, Thursday, and Saturday; odd addresses water on Wednesday, Friday, and Sunday. Permitted hours: 7:00 PM through 10:00 AM only.
Why did Calgary adopt mandatory rules in 2026?
Three reasons: rapid population growth straining a limited water supply, aging infrastructure (the Bearspaw South Feeder Main carries 60% of treated water and has had 3 emergency shutdowns in 2 years), and 22% leak losses in the distribution system in 2024. The 2026 Water Efficiency Plan combines this demand-side schedule with $354 million over 4 years in supply-side leak detection and pipe renewal. The plan targets a 20% reduction in per-capita demand by 2040.
What is the Bearspaw South Feeder Main crisis?
The Bearspaw South Feeder Main carries about 60% of Calgary's treated drinking water from the Bearspaw Water Treatment Plant to the city. It has required 3 emergency shutdowns in the past 2 years, including a major rupture through a roadway in December 2025. Each outage forces emergency outdoor-watering bans and shows that a single point of failure can put Calgary in crisis within hours. The 2026 plan is partly a response to this infrastructure vulnerability.
Are vegetable gardens exempt from the schedule?
Yes. Food-producing crops (vegetable gardens, herbs, fruit trees, berries) are exempt from the assigned-day schedule. Newly planted trees, shrubs, and sod are also exempt during their establishment period. Hand watering with a shut-off nozzle is permitted any day, any time for any plant.
What are the fines for watering off-schedule?
The City has stated it will not be 'draconian' in early enforcement. Bylaw officers prioritise education and warnings before laying charges. Repeat or wilful violations attract escalating fines under the Water Utility Bylaw 40M2006. Calgary's metered water system also means off-schedule watering shows up as a higher monthly bill regardless of bylaw enforcement.
Does the schedule apply during drought too?
Yes — and stricter drought stages can layer on top. The mandatory year-round schedule is the new baseline, not a replacement for drought response. If Bow River levels or Glenmore Reservoir drop further, the City can activate Stage 1, Stage 2, Stage 3, or Stage 4 drought restrictions on top of the year-round schedule, reducing watering to 1 day per week (Stage 3) or banning outdoor watering entirely (Stage 4).
Why doesn't Edmonton have similar mandatory rules?
Edmonton's water comes from the North Saskatchewan River — a larger and more reliable source than Calgary's Bow River system — and EPCOR has not faced the same infrastructure crisis as Calgary's Bearspaw main. EPCOR operates a 4-stage situational drought response system but has not adopted a permanent year-round schedule. That said, several smaller Alberta cities (Airdrie, Okotoks, Cochrane, Chestermere, Strathmore) have run mandatory schedules for years.
Can my Alberta condo or HOA fine me for a brown lawn?
No. Alberta condominium corporations and HOAs cannot impose landscape rules that conflict with municipal bylaws. The City of Calgary's mandatory schedule supersedes any condo or HOA bylaw requiring lawn watering outside the permitted window. If your condo board issues a violation notice for a dormant lawn, respond in writing citing Water Utility Bylaw 40M2006 and the assigned-day schedule.

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