Kamloops cuts lawn watering to once a week as Drought Level 4 takes effect

Kamloops lawns are going brown this week, and the city would like residents to understand that this is the plan rather than a failure of it.

As of Monday, July 20, 2026, the City of Kamloops is operating under Drought Level 4 — the second-highest category on its five-point plan — for every customer on the city's potable water system. Lawn watering, whether by sprinkler or by hand, is now limited to one day a week.

Reported July 22, 2026. This is a developing situation: provincial drought levels are reassessed through the season, and Kamloops has one further step available above the current level.

What triggered the move

The city did not act on its own reservoir readings. It acted on the provincial drought level for the South Thompson River, the river Kamloops draws from.

British Columbia rates each of its water basins from 0 to 5, describing the likelihood of adverse impacts to communities and ecosystems rather than rainfall alone. The South Thompson and Nicola basins currently sit at Level 4; the Lower Thompson is at Level 3. Level 5 is the maximum, and at that point the province can temporarily suspend water licences to protect stream flows.

The underlying number is snow. The South Thompson watershed finished the 2026 season at roughly 55% of normal snowpack — barely half. For a city drawing directly from a river rather than from a large storage reservoir, that arithmetic is unforgiving: summer flow is last winter's snow, and there is very little buffer between a poor snow year and a supply problem.

This is the first time Kamloops has tightened its rules since it adopted year-round water restrictions in 2024. That baseline matters. A city already watering conservatively in June has genuine room to cut in July; a city watering freely has to impose a much larger shock to save the same volume.

What is restricted

Use	Level 4 rule
Lawn watering — sprinkler or by hand	One day a week
Trees, shrubs, plants and flowers by sprinkler	One day a week
Trees, shrubs, plants and flowers by drip irrigation	Three days a week
Any irrigation, any method	Not permitted between 11 a.m. and 7 p.m.
Non-essential outdoor water use generally	Residents and businesses asked to postpone

The rule catching most people out is that the once-weekly limit includes hand watering of lawns. Most Canadian jurisdictions leave a hose and nozzle unrestricted at every stage. Kamloops does not: standing on the grass with a hose on the wrong day is a violation, the same as leaving a sprinkler running.

The drip irrigation exemption is the most useful rule here

Buried in the schedule is the provision that matters most to anyone trying to keep a garden alive: drip irrigation is permitted three days a week, against one day for sprinklers.

That is a threefold difference, and it is not arbitrary. Drip lines deliver water directly to the root zone at a rate soil can absorb, losing almost nothing to evaporation, drift or runoff. In a semi-arid valley where summer temperatures routinely pass 35 °C and afternoon wind is common, overhead spray can lose a substantial share of its volume before it reaches the ground. The city is effectively pricing efficiency into the schedule — use a method that wastes less, and you get more days.

For a household deciding where to spend effort this month, the calculation is straightforward. Converting beds, hedging and young trees to drip or soaker lines triples their permitted watering while cutting the volume each session uses. The lawn cannot be saved on one day a week in a Kamloops July, and the city is not asking anyone to try.

The brown lawn is not a fire risk

The city has gone out of its way to correct a specific public misconception, and it is worth repeating plainly: a brown lawn is a normal response to hot, dry weather, it does not increase wildfire risk, and dormant grass recovers when cooler, wetter conditions return.

This addresses a genuine anxiety in a region that lives with wildfire every summer. The intuition that dry grass near a house is dangerous is reasonable in general — but a dormant residential lawn, mown and maintained, is not the fuel that carries fire. FireSmart guidance concentrates on the first 1.5 metres around a structure, where the priority is removing combustible material entirely: gravel or paving rather than bark mulch against the foundation, no woody shrubs tight to walls, cleared gutters, dead material removed from beds.

Irrigating a lawn to green is not a fire mitigation strategy. It is, under Level 4, a violation.

The city has also been explicit that its enforcement approach is education first — officers focusing on explaining the rules before laying charges.

What is still open

City water parks are not affected and remain open. They are managed under the Extreme Heat Response Plan rather than the Drought Response Plan, because they serve a public health function during heat events that has nothing to do with landscape irrigation. In a drought that arrives with heat, closing the places people cool off would trade one risk for a worse one.

Municipal landscape irrigation has been reduced under the Drought Response Plan, though some treed areas, sports fields and recreation spaces continue to receive targeted watering to maintain safe playing surfaces — a genuine safety consideration, since hard, dried-out sports fields cause injuries.

The wider basin

Kamloops is not acting alone. Provincial bulletins report declining flows across many Thompson-Okanagan streams, with discussions under way on fish salvage in the worst-affected reaches.

That connects this restriction to something larger than reservoir management. The city has framed Level 4 as protecting the drinking water supply, supporting the health of local waterways and fish habitat, and keeping water available for essential needs. The middle purpose is the one most easily missed: the Thompson system is a major salmon-bearing watershed, and low summer flows raise water temperatures and shrink habitat precisely when migrating fish are most vulnerable. Warm water holds less dissolved oxygen, and a river running low and hot becomes a barrier.

Elsewhere in the region, Greater Vernon has been at Stage 3 since early June, asking all customers for a 50% cut in total use and farmers for 70%. Kelowna has been at Stage 2 since June 4 with Okanagan Lake at a record low for the date. Across British Columbia, the pattern this summer has been steady escalation rather than a single dramatic event.

Reading British Columbia's drought scale

Because Kamloops ties its municipal response to the province's rating rather than to its own judgement, the provincial scale is the thing to watch — and it is widely misread.

British Columbia rates each water basin from 0 to 5. The scale describes the likelihood of adverse impacts to communities and ecosystems, not rainfall totals and not reservoir percentages. Levels 0 to 2 span normal to dry conditions, where voluntary conservation is the usual ask. Level 3 signals that adverse impacts are possible. Level 4 means they are likely. Level 5 means they are almost certain, and at that point the province can temporarily suspend water licences to protect stream flows.

Two consequences follow for a Kamloops household. First, the rating can move without the weather visibly changing, because it aggregates streamflow, groundwater, snowpack and forecast conditions rather than tracking any single measure. A week of cloud does not lower it.

Second, the provincial rating is a genuinely useful leading indicator. Basin ratings are published through the province's drought information portal and updated through the season, and because Kamloops has aligned its municipal levels to the South Thompson rating, watching the provincial number tells you more about the city's next move than any forecast will.

The same scale explains why neighbouring communities differ. The Nicola basin also sits at Level 4; the Lower Thompson is at Level 3. Municipalities drawing from different basins can legitimately be under quite different rules in the same week, in the same weather.

Why a year-round baseline mattered

Kamloops adopted year-round water restrictions in 2024, and it is worth understanding what that decision bought, because it is the reason this July's escalation was as modest as it was.

Most Canadian municipalities treat restrictions as an emergency instrument — switched on in a bad summer, switched off when the rain returns, framed as a temporary imposition. A permanent bylaw makes a different claim: that the baseline itself was unsustainable. It changes the default rather than managing the exception.

The practical benefit showed up this month. When the province rated the South Thompson at Level 4, Kamloops was escalating from an already-conservative baseline rather than from unrestricted use. A city that has been watering carefully all season has genuine room to cut; a city that has been watering freely has to impose a much larger behavioural shock to achieve the same volume saving.

It also removes the annual relearning problem. Seasonal bylaws generate a predictable spike in violations every spring, when a whole municipality has to remember rules it stopped following eight months earlier. Kamloops has no switch-over date, so the rules residents followed last August are the rules that applied in April and the rules that apply now — tightened, but not replaced.

How to spend one watering day well

A single day a week is enough to keep a lawn alive through a Kamloops summer only if the water actually reaches the roots, which for most households it currently does not.

The requirement is roughly 25 mm of water a week, including whatever rain falls. That sounds like a lot until you measure it: set three or four straight-sided tins on the grass, run the sprinkler for twenty minutes, and check the depth collected. Most systems deliver 25 mm in well under an hour, which means a single permitted day is sufficient in volume terms. The problem is almost never the allowance.

The problem is usually the soil. Kamloops sits on semi-arid grassland where soils are often thin over compacted subsoil, and water applied faster than the ground can absorb runs off before it penetrates. The technique that fixes this is cycle-and-soak: run for fifteen minutes, stop for thirty to let it absorb, then run again. The same total volume goes considerably further, and on a once-weekly schedule that difference decides whether the grass survives.

Timing matters more here than in most Canadian cities. With irrigation prohibited between 11 a.m. and 7 p.m., the practical choice is early morning or late evening — and early morning is better. Watering at dawn puts water down before the day's heat drives evaporation, and lets the grass blades dry through the day, which reduces the fungal disease pressure that overnight watering encourages.

Finally, mow high. Grass cut to 7 or 8 centimetres shades its own root zone and holds soil moisture; grass scalped to 4 centimetres bakes and then needs the water it just lost. Leave the clippings where they fall — they return both moisture and nitrogen.

What comes next

Level 4 is not the ceiling. Kamloops retains a fifth level, and because the city aligns its response to the provincial rating for the South Thompson, the provincial basin assessment is a better leading indicator of the city's next move than any weather forecast. If the province moves the South Thompson to Level 5, a further municipal tightening becomes likely.

The realistic planning assumption for the rest of this summer is that Level 4 persists rather than eases. Restrictions in a river-fed system do not relax because of a single rainfall. They relax when flows recover, and flows recover with next winter's snow.

Residents can find current details and updates through the city's engagement portal at LetsTalk.Kamloops.ca.