This dataset contains a list of drainage superintendents who are appointed by the local municipality to manage drains constructed under the [Drainage Act, 1990](https://www.ontario.ca/laws/statute/90d17). Drainage superintendents are businesses or individuals that represent the local municipality to assist landowners to resolve their drainage concerns using the Ontario Drainage Act, 1990. This list is maintained by the Ministry of Agriculture, Food and Agribusiness (OMAFA) and includes municipality names, addresses telephone numbers, and superintendent contact information. This list is updated annually or as required throughout the year. More information about the work of drainage superintendents can be found at [Drainage Superintendents Association of Ontario (DSAO)](https://www.dsao.net/).

Get the locations of drainage tiles installed by licenced agricultural drainage contractors. As a requirement of the license, each contractor must report the location of new drainage tile areas to the Ontario Ministry of Agriculture, Food, and Agribusiness.

Drainage basins of Manitoba.Hydrologic drainage basins found within Manitoba. The Assiniboine River basin is divided to indicate the Shellmouth Reservoir subbasin, to better illustrate local impacts and conditions. Basin names are in English and French. 

This product provides the boundaries for the 25 drainage regions in Canada and the five ocean drainage areas. These drainage regions cover all of the area within the coastal boundaries of Canada.These files were produced by Statistics Canada, Environment, Energy and Transportation Statistics Division, 2009, special tabulation of data from Pearse, P.H., F. Bertrand and J.W. MacLaren, 1985, Currents of Change: Final Report of the Inquiry on Federal Water Policy, Environment Canada, Ottawa.

This product provides the variability index for selected drainage regions in Canada. Variability is measured using a coefficient of variation (CV) to compare all months over a 42-year time period and is a measure of the dispersion or variation in the monthly yield values from 1971 to 2013 (and 1971 to 2012 for drainage region 1). It is defined as the ratio of the standard deviation to the mean or the standard deviation divided by the mean, with higher CVs indicating more variability in monthly water yields. The monthly variability was not calculated for drainage regions 5, 7, 8, 16, 17, 18, or the Labrador portion of 25.

This data keeps the Ministry of Agriculture, Food and Agribusiness' records of modified or newly constructed drainage systems current. Constructed drains include ditches, buried tile systems, or natural watercourses that have been modified to improve drainage.

A Drainage Appliance is an apparatus (that has not been described as a culvert), or earth works, designed to facilitate the movement of water in a controlled manner. Drainage Appliance include some appliances/earth works that work in conjunction with culverts. It is a Point feature

The Drainage Areas dataset is largely based on the Water Survey of Canada (WSC) drainage area boundaries at the sub-sub-basin level. The data model supports the derivation, from the Fundamental Drainage Areas dataset (sub-sub-basin level), of the WSC and Atlas of Canada drainage area hierarchies and the data is available in all three schemes. Drainage area definitions for both WSC and Atlas of Canada boundaries were reviewed resulting in some modifications. Larger scale reference data sources were used for further manual boundary adjustments. This dataset has been integrated with other National Scale Frameworks hydrology datasets and is considered a component of the Hydrology Theme (see Supplemental Information for more details about the Atlas of Canada National Frameworks data at the 1:1,000,000 scale).The Atlas Frameworks are a set of integrated base map layers which form part of a larger National-Scale Frameworks data collection. These data have been compiled at a scale of 1:1 000 000 with the primary goal being to indicate correct relative positioning with other framework layers rather than absolute positional accuracy.Distributed from [GeoYukon](https://yukon.ca/geoyukon) by the [Government of Yukon](https://yukon.ca/maps) . Discover more digital map data and interactive maps from Yukon's digital map data collection.For more information: [geomatics.help@yukon.ca](mailto:geomatics.help@yukon.ca)

This theme includes the drainage areas of various watercourse monitoring stations (physicochemical and bacteriological, benthic organisms, diatoms, pesticides, etc.) carried out by the Ministry of the Environment, the Fight against Climate Change, Wildlife and Parks (MELCCFP) as well as lake catchments (MELCCFP) as well as lake catchments including the majority of lakes in the Voluntary Lake Monitoring Network (RSVL).The drainage area and the watershed represent the territory whose water flows to the sampling station or to the outlet of the lake. Boundaries are generated using a geographic information system (GIS) from topographic maps, numerical elevation models and flow models, and watershed boundaries produced by the Main Directorate of Water Expertise (DPEH).The drainage area and watershed are used to calculate the area drained upstream of the sampling station or lake, to characterize the drained territory (for example, to determine land use), and to meet specific mapping needs. The linked tables also provide compilations of land use according to three classifications to contextualize the various monitoring carried out at the stations. Note that the use of land outside Quebec, drainage areas and transboundary watersheds is not calculated and that the percentages in each category correspond to the Quebec area only.**This third party metadata element was translated using an automated translation tool (Amazon Translate).**

INW - Inland water resources (inlandWaters)Inland water features, drainage systems, and their characteristics. For example, resources describing rivers and glaciers, salt lakes, water use plans, dams, currents, floods, water quality, and hydrographic charts