Terms of sale
Effective October 5, 2026 (link lifetime and backup copies revised; first version August 29, 2026)
Seller
The service is sold by Altered Horizon Ventures Inc. (French name: Horizon Modifié), a Québec corporation based in Montréal, Québec, Canada. Email: [email protected]. The full postal address appears on your Stripe receipt.
What you are buying
A one-time rain flood risk check for a civic address you choose in Québec or in the City of Ottawa: a rain-on-grid simulation computed over a hexagon of about 400 m around the property, from the government terrain model (NRCan HRDEM, 1 m) and public data. The result includes the water depth modelled around the building (the 90th percentile of the ground within 3 m of the walls, with the deepest single spot beside it; if no building outline is found near the address, the ground within 10 m of the federal geocoder's address point, which is usually the street) during a design storm (100-year return period, 60-minute duration, intensities from Environment and Climate Change Canada's records for the nearest station that publishes values for that storm), whether rain collects there (more than 5 cm), what street drainage removes where municipal data exist, a map and a 3D view of the neighbourhood with the storm animation and, when data quality allows, a PDF report.
The simulation is a shallow-water simulation of the rain that falls on the area itself and runs off over the terrain (rain falling on roofs is assumed to drain away into the sewer); water arriving from a river or lake, sewer backup, the pipe network, lot drainage (grading, swales, drains), ice jams and storm surge are not modelled. Where the public structures inventory records a culverted road crossing, the crossing is lowered to a partly blocked opening rather than solved hydraulically. If the simulation cannot complete within the time allowed, or no terrain data covers the address, the order is refunded automatically.
This is an indicative screening. It is not a hydraulic study, not an insurance assessment and not an official flood-zone map, and it does not replace your municipality's maps or professional advice. Levels are expressed as CGVD2013 elevations.
Price and payment
The price shown at purchase is in Canadian dollars, taxes included. Payment is processed by Stripe. We never receive or store your card number.
Delivery
The check starts automatically at payment. The result is usually delivered in about fifteen minutes, longer when there is a queue. The result is made available at the email address you provided and on floodverity.com through a private link. The link stays active until your data is deleted, 30 days after you place the order.
Cancellation and refunds
The service cannot be cancelled once the result is delivered. If we cannot produce the result (for example, no terrain data for the area or a processing error), the payment is refunded in full, automatically, to the original payment method, and you are notified by email.
These terms do not remove the rights the Québec Consumer Protection Act gives you for a distance contract.
Liability
The result is provided as is, for information. To the extent the law allows, our liability for any damage related to the use of the result is limited to the amount paid for the check.
Personal data
How your email and the checked address are handled is described in the privacy notice. That data is deleted automatically 30 days after you place the order; a copy can remain in our backups for up to 30 more days.
Governing law
These terms are governed by the laws of Québec and the laws of Canada applicable therein.