Government and Municipalities of Québec

Delimitation of territories for which a ministerial order has been published in the Official Gazette of Quebec in order to exempt them from the application of the regulations provided for in the territory of the ZIS. Territories other than those shown may be subtracted later. For more information...

Since 1 March 2022, the Special Intervention Zones (ZIS) have been lifted. However, the territory flooded during the exceptional spring floods of 2017 and 2019, as illustrated in Annex 2 adjusted to Decree 814-2019, is considered by the Regulation concerning the provisional implementation of the...

The database on uses related to the aquatic environment (URMA) is a database consisting of information on water-related activities collected by representatives of the General Directorate for Monitoring the State of the Environment (DGSEE) of the Ministry of the Environment, the Fight against...

Data on flood zones include mapping carried out as part of the mapping program of the Canada-Quebec Convention from 1976 to 2001, the Program for the determination of flood ratings from 2001 to 2004 (PDCC), as well as the mapping carried out after that date by the Centre d'expertise du Québec...

Under the Regulation Respecting the Mandatory Reporting of Certain Contaminant Emissions into the Atmosphere (RDOECA), the Ministry of the Environment, the Fight against Climate Change, Wildlife and Parks collects data on greenhouse gases (GHGs) emitted by Quebec businesses in particular. Thus,...

The Hydrogeological Information System (HIS) contains the physical characteristics of wells and boreholes (location, depth, stratigraphy encountered, etc.) mainly from drilling reports transmitted by well drillers for groundwater sampling installations serving private drinking water residences....

Under the Regulation respecting the mandatory reporting of certain emissions of contaminants into the atmosphere (RDOECA), the Ministry of the Environment and the Fight against Climate Change collects data on air contaminants emitted by Quebec companies in particular. Thus, any person or...

The Quebec Ecological Reference Framework (CERQ) is a tool for mapping and ecological classification of Quebec territory. It apprehends the territory from the general to the particular, in a hierarchical system of interlocking levels of perception. This layer of information was produced as part...

The GTC System makes it possible to compile information on the records of land contaminated by industrial and commercial activities or by accidental spills. This is not an exhaustive inventory, but a compilation of cases brought to the attention of the Department. It also includes information on...

This thematic layer represents the characterization of the hardness of surface water in Quebec. The hardness is presented according to the medians calculated from the concentrations of calcium and magnesium ions in seven classes. Water hardness influences the toxicity of certain metals, including...

The 2023 mapping of potential wetlands in Quebec (CMHPQ) 2023, released by the Directorate of Ecological Knowledge (DCE), provides up-to-date information on the potential presence of wetlands for the entire province of Quebec. In particular, version 2023 contains the classification of potentially...

This theme presents observations of invasive exotic species (IEE) transmitted and validated using the Sentinel tool, an IEE detection system. An invasive exotic species is a plant, animal, or microorganism (virus, bacteria, or fungus) that is introduced outside of its natural range. Its...

The theme on physicochemical monitoring of rivers and rivers presents data from all stations in networks monitoring water quality in rivers in Quebec and the St. Lawrence River. The purpose of networks for monitoring general water quality is to characterize, using current physicochemical and...

The Riparian Quality Index (IQBR) is used to assess the ecological condition of the shoreline environment. It is built from nine components that have been weighted according to their potential to perform ecological functions in terms of the protection of aquatic ecosystems. Data on shoreline...

This theme presents the index of water health along the banks of the St. Lawrence River. It makes it possible to determine if the sites present risks to human health and if they are suitable for swimming. These data are the result of an exploratory monitoring program that aims to raise awareness...

This layer shows the location of the sampled stations classified according to the Eastern Canada Diatom Index (IDEC). It contains data obtained since 1935 that was converted to version 3 of the index (Lavoie et al. 2014). Benthic diatoms are microscopic unicellular algae that line the bottom of...

This theme presents the trophic status of lakes monitored as part of the Voluntary Lake Monitoring Network (RSVL) between 2004 and 2020. The trophic state is the result of the compilation of data acquired as part of this network. Trophic levels are used to classify lakes according to their degree...

Location and identification of the 40 integrated water management zones by watershed in southern Quebec.This third party metadata element was translated using an automated translation tool (Amazon Translate).

Adresses Quebec is a road geobase that covers all of Quebec. It offers a complete road network including official names, addresses by slices and points, information for route management, postal codes (MOs) and a cartographic context. The user guide is available at [next link]...

This theme presents the location of samples of contaminants of emerging interest (CIE) carried out by the Directorate-General for Monitoring the State of the Environment (DGSEE) as part of its work since 2000. Each station is accompanied by a link in the attribute table allowing the reader to...