Around Dewdney Place, 25% of tested homes have radon above the guideline
Wildfire barely registers for Dewdney Place, at 0% of the land within 25 km since 1986 (0.000% a year). Shaking is less of a worry than in most places, at $0.014 a year per $1,000 of building value ($0.030 typical). Hazard risk gives Dewdney Place a grade of C+, from earthquakes and radon alone.
What stands out about Dewdney Place’s hazards
Four national sources, each read for Dewdney Place: earthquakes, radon, past fires and flood studies.
What Dewdney Place faces
Each hazard against its own yardstick; meters run from low to high on that yardstick.
Wildfire
Earthquakes
Radon
Flood study
Hazard risk in Dewdney Place: C+
Seismic risk and radon set Dewdney Place’s grade, wildfire can drag it down, and flood mapping stays out of it.
Its place: #74 of 104 in Saskatchewan and #2,005 of 2,589 Canadian towns.
How sure: Earthquake losses are a model’s expectation over many years, not a forecast for any one. Small fires and grass fires are largely missing from the national burned-area record.
Wildfire is rare near Dewdney Place: 0% of the land within 25 km burned since 1986, 0% within 5 km
Past fire around Dewdney Place’s homes, from the national burned-area record, with the fuel within 5 km.
Forty years of fire maps put Dewdney Place at 0.000% a year, low next to the typical Canadian town’s 0.000%.
Around Dewdney Place the forest is thin or far off: 0.1% of the land within 5 km and 0% within 25 km is forest fuel.
Shares of land within 5 and 25 km of populated blocks: burned at least once in 1986–2025 (CWFIS burned-area composite), forest fuel and grass (fire behaviour fuel types, 2026, 250 m grid).
Burn rate a year, towns in Saskatchewan · highest of 104
Among the 104 towns in Saskatchewan, La Loche burns fastest (1.94% a year); Dewdney Place is with the 54 near zero.
Each bar: the yearly average share of land within 25 km of a town’s homes that burned, 1986–2025 (CWFIS); the seven highest towns of 2,500 people or more.
Measured against 2,610 towns, Dewdney Place is in the largest group, low (92%), and at its floor, while 7.5% rank higher.
Bands of the yearly burn rate: low under 0.05%, moderate under 0.25%, high under 1%, very high 1% or more; towns of 2,500 people or more.
Fire danger and active fires (CWFIS)
Canadian Wildland Fire Information System: National Burned Area Composite 1986–2025 and fire behaviour fuel types (2026), Natural Resources Canada. Measured within 25 km and 5 km of each populated dissemination area; past fire, not a forecast.
Flooding around Dewdney Place is mapped in 2 studies, the newest by Water Security Agency
What Canada’s Flood Map Inventory lists for Dewdney Place: who studied flooding and where to see their maps.
The newest of 2 studies covering Dewdney Place is Water Security Agency’s, from 2025; open its map to see the zones.
| Study | By | Year | Status |
|---|---|---|---|
| Regina Flood Mapping Study | Water Security Agency | 2025 | final |
| Regina | Water Security Agency | 2020 | under review · not public |
Towns with a flood study on file
Mapping in Saskatchewan reaches 55% of towns, Dewdney Place among them, below the 58% across Canada.
NRCan Canada Flood Map Inventory: a study footprint touching the town’s boundary; towns of 2,500 people or more.
Flood mapping is shown for Dewdney Place to be opened and checked, never turned into a grade.
The inventory’s own caution (NRCan): “The Canada Flood Map (CFM) does not include every flood hazard map in Canada and may be incomplete or contain inaccuracies. It should not be relied upon as the official source of flood mapping information. Furthermore, if a map appears to be missing, this does not necessarily mean that the area has never been mapped. For the official version of a map, updated information, or confirmation of applicable regulations, please contact the local authority responsible for flood mapping.”
Natural Resources Canada, Canada Flood Map Inventory; links go to each study’s owner.
Earthquakes cost buildings in Dewdney Place just $0.014 per $1,000 a year
Expected yearly building losses from earthquakes, from Natural Resources Canada’s model.
At $0.014 per $1,000, Dewdney Place carries 0.5 times the typical Canadian town’s earthquake risk ($0.030): low.
Dewdney Place shares its earthquake risk numbers with the rest of the city of Regina.
Shaking damage a year per $1,000 of building value
At $0.014, Dewdney Place is above the typical town in Saskatchewan ($0.006); Weyburn has the most at $0.033.
NRCan seismic risk model (2022): mean yearly building loss per $1,000 of value; medians of towns of 2,500 people or more.
Earthquakes cost less around Dewdney Place than in 73% of Canada’s 2,611 towns.
Each column: the share of Canada’s towns of 2,500 people or more in that range of yearly loss per $1,000 (NRCan, 2022).
The model counts damage to Dewdney Place’s buildings and their occupants from shaking only: not liquefaction, landslides, tsunami or fires after a quake.
Natural Resources Canada, Canada’s Seismic Risk Model (2022), by census subdivision (2016 boundaries; a few 2021 subdivisions take their residents’ mean).
25% of homes tested around Dewdney Place are over the radon guideline
Long-term radon tests in homes across the survey area, against Health Canada’s guideline.
Dewdney Place’s survey area reads 25% over the guideline, well past the typical Canadian town’s 6.6%. For radon tests, the only official count covers all of the Regina Qu'Appelle RHA, Dewdney Place included.
Tested homes over 200 Bq/m³
Over 600 Bq/m³
Radon runs higher around Dewdney Place than in most towns in Saskatchewan: 25% over the guideline (9.1% is typical), 4.3% over 600.
Health Canada radon survey (2009–2011), by 2007 health region; medians of towns of 2,500 people or more.
Dewdney Place is in the 20–30% band, which holds only 3.1% of Canada’s 2,611 towns; 1.5% are higher.
Each bar: the share of Canada’s towns of 2,500 people or more whose survey area had that share of tests over 200 Bq/m³.
The share describes the area, not a house: in Dewdney Place as anywhere, test to be sure.
Health Canada, Cross-Canada Survey of Radon Concentrations in Homes (2009–2011).
Weather and fire alerts for Dewdney Place
Alerts for Dewdney Place come from Environment and Climate Change Canada and, for emergencies, Alert Ready.
| Alert | What it means |
|---|---|
| Warning | Severe weather is happening or about to: act now. |
| Watch | Conditions favour severe weather: be ready. |
| Advisory | Weather that is less severe but could disrupt the day. |
| Special weather statement | Unusual weather worth knowing about. |
| Special air quality statement | Poor air, often wildfire smoke. |
Fire danger and active fires near Dewdney Place are mapped daily by the Canadian Wildland Fire Information System; evacuation orders come from the municipality or province.
Weather alerts (ECCC) · Alert Ready · Fire danger and active fires (CWFIS)
Hazards in the places around Dewdney Place
Wildfire band, earthquake risk, radon and flood studies for each place nearby.
| Town | Wildfire | Quake $/1,000 | Radon | Flood study |
|---|---|---|---|---|
| Dewdney Place | Low | $0.014 | 25% | Yes |
| Heritage 5,172 · 1.2 km | Low | $0.014 | 25% | Yes |
| Downtown 4,282 · 1.4 km | Low | $0.014 | 25% | Yes |
| Lakeview 7,770 · 1.8 km | Low | $0.014 | 25% | Yes |
| Al Ritchie 8,087 · 1.9 km | Low | $0.014 | 25% | Yes |
| Cathedral Village 7,311 · 2.2 km | Low | $0.014 | 25% | Yes |
| Boothill 2,613 · 2.2 km | Low | $0.014 | 25% | Yes |
Fire is no heavier anywhere nearby than around Dewdney Place (low), with Heritage next at low.
Radon is the survey area’s figure, so neighbours in one area share it.
Get ready for what Dewdney Place faces
Practical steps for Dewdney Place’s hazards, most pressing first.
- Test for three months in winter.
- Over 200 Bq/m³: fix it.
- Kits are cheap; pros test too.
- Never drive through floodwater.
- Move papers and medicines upstairs.
- Ask whether your street is mapped.
- Clear needles and wood nearby.
- Keep a grab-and-go bag ready.
- In smoke, stay in; filter air.
- Has it had a radon test?
- Check the address on the flood map.
- Are flood and wildfire insured?
What this data can and can’t tell you
- Flood studies aren’t flood zones. NRCan’s inventory says where flood mapping exists, not where water goes; the map’s owner is the authority for Dewdney Place.
- Wildfire counts one way. The wildfire figure is the share of land within 25 km of Dewdney Place’s homes burned each year from 1986 to 2025, past fire rather than a forecast, and it can only lower Risk.
- Radon is a survey. About 14,000 homes were tested across Canada in 2009–2011, and the share over the guideline for Dewdney Place is its health region’s, the survey’s design unit.
- Earthquakes are modelled. Shaking damage is modelled from the ground, the buildings and the odds of each quake, and published for whole subdivisions such as Dewdney Place’s.
Questions about flooding and hazards in Dewdney Place
Is Dewdney Place at risk of wildfire?
Very little by the national record: Dewdney Place’s band is low, with 0% of the land within 25 km burned since 1986, so wildfire doesn’t change its grade.
How is Dewdney Place’s Hazard risk Grade worked out?
Hazard risk gives Dewdney Place C+, weighing earthquakes and radon and counting wildfire only against it.
Is radon a problem in Dewdney Place?
25% of the 94 homes Health Canada tested around Dewdney Place topped the guideline; your own house needs its own test.
How big is the earthquake risk in Dewdney Place?
NRCan’s model expects shaking to cost buildings in Dewdney Place $0.014 a year for every $1,000 of their value, on average over many years.
Does Dewdney Place flood?
There is flood mapping for Dewdney Place on the national inventory, each study linked to its owner’s map, none of them graded.
Seismic risk: Natural Resources Canada. Radon: Health Canada. Wildfire: Canadian Wildland Fire Information System. Flood studies: Natural Resources Canada, Canada Flood Map Inventory. Contains information licensed under the Open Government Licence – Canada.
Sources: NRCan, Canada’s Seismic Risk Model 2022 · Health Canada, Cross-Canada Survey of Radon Concentrations in Homes · CWFIS, National Burned Area Composite and FBP fuel types · NRCan, Canada Flood Map Inventory. Under the Statistics Canada Open Licence.
Adapted from Statistics Canada (Census of Population 2021, population estimates 2025, 2021 census boundaries) under the Statistics Canada Open Licence; this does not constitute an endorsement by Statistics Canada. Neighbourhood names in some cities © OpenStreetMap contributors (ODbL).