Environment Canada and the provincial Department of Environment and Conservation have been monitoring ambient surface water quality of selected water bodies in the province since 1986 under the Canada-Newfoundland Water Quality Monitoring Agreement (WQMA). The purpose of this Agreement was practical coordination and integration of federal and provincial water quality monitoring activities. On April 29, 1986, an Agreement was signed between the federal and provincial government to establish a joint water quality monitoring network. The WQMA provides for the regular monitoring of an index network of stations, as well as an annual recurrent study concentrating on water quality, sediment and biota in a selected watershed. Since its inception, the Agreement has seen water quality data collected at a total of 111 monitoring sites.

Index containing links to Water Quality Objectives Reports , Summary and Technical, available through Internet

Digitization of long-term water chemistry data collected between 1920's - 1990's from lakes across Saskatchewan by the Saskatchewan Fisheries Research Laboratory. Samples were collected using methods from the Standard Methods for the Examination of Water and Wastewater (APHA, AWWA and WPCF). This data serves as a baseline for water quality. This dataset is a digitization from paper records of water chemistry data across Saskatchewan collected by the Saskatchewan Fisheries Research Laboratory. Data ranges from the 1920's to the 1990's and were sampled using methodes from the Standard Methods for the Examination of Water and Wastewater (American Public Health Association, American Water Works Association and Water Pollution Control Facility) This long-term water chemistry data serves as a baseline for water quality. Different variables of water chemistry are organized into individual fields. The units of measurement appear at the end of each field name. Due to the historical nature of the data some uncertainty exist in values.  Additonal notes on data: ND: no detection Trace: trace amounts Nil: zero NA: no data 

Data is collected each year, according to the lake-by-lake cycle. Information includes: * water chemistry * physical conditions including light profiles * approximately 80 index and reference stations throughout the Great Lakes basin

In 2013, the Ontario Ministry of the Environment, Conservation and Parks initiated an integrated baseline environmental data collection program in the Ring of Fire region located in Ontario’s Far North. The program was designed to establish baseline or reference environmental conditions for this region of Ontario. The program was comprised of four main integrated components: - surface water (lakes and streams) monitoring (2013-2018) - peat pore water (groundwater) monitoring (2013-2018) - terrestrial (vegetation and soil) monitoring (2013-2018) - air monitoring (2015-2018) Data collection activities were generally located within 60 km of the Noront Resources/Cliffs Natural Resources mining exploration camp established near Koper Lake and within the Attawapiskat, Ekwan, and Winisk River watersheds. The baseline monitoring activities were integrated or co-located where possible to provide more comprehensive datasets on the dominant ecosystems for this part of Ontario.

A shapefile of the Nova Scotia Automated Surface Water Quality Monitoring Network monitoring stations. The network was established in 2002 to assess near real-time water quality in surface waters across the province at five river stations and one lake station. The results are used to help manage water resources, determine baseline water quality in lakes and watercourses throughout the province, evaluate the impact of human activities on surface water, and assess long term trends in water quality. The following weblink connects to a Nova Scotia Department of Environment and Climate Change web map that includes the six monitoring station locations and an alternative method for downloading the same dataset: http://nse.maps.arcgis.com/apps/webappviewer/index.html?id=7ded7a30bef44f848e8a4fc8672c89bd

The Lake Simcoe lake monitoring program provides measurements of chemical and physical water quality limits such as total phosphorus, nitrogen, chlorophyll a, pH, alkalinity, conductivity, dissolved organic and inorganic carbon, silica, other ions, water transparency, temperature and dissolved oxygen. Samples are collected biweekly during the spring, summer and fall. *[pH]: potential of hydrogen

A goal of the Government of Canada’s Coastal Environmental Baseline Program (CEBP) is to amalgamate historic environmental data from high vessel traffic areas. An extensive DFO biological sampling program was conducted from 1980 to 1981 on Sturgeon and Roberts banks located on the outer Fraser River estuary, BC, Canada. This report collates and simplifies three data sets: water quality and nearshore fish catch previously published as DFO Data Report 340 (Conlin et al.1982), and un- published weight-length (W-L) data for two locations on Sturgeon Bank (Iona and Steveston) and near Westshore Terminals (Coal Port) on Roberts Bank. W-L data were reconstructed from archived computer printouts using Optical Character Recognition methods. Analyses of water quality data indicate that the two banks provided different fish habitats with Sturgeon Bank having a greater freshwater influence. Although Iona area water quality was exposed to sewage outfall from a nearby sewage treatment plant, it appears that fish communities were not different from the other Sturgeon Bank area (Steveston). The fish communities were found to be different between the two banks with Roberts Bank having greater overall abundance and diversity. Interestingly, of the seven fish species used for condition factor analyses, five were found to have lower Relative Condition Factors in the Roberts Bank sampling area.

Environmental Monitoring Stations (EMS) spatial points coverage for the Province by LOCATION TYPES. The following spatial layers reference this as a data source: 1. Environmental Monitoring - All Stations 2. Environmental Monitoring Stations - Air Monitoring (Ambient Air Site) 3. Environmental Monitoring Stations - Air Monitoring (Air Permit) 4. Environmental Monitoring Stations - Water Sites (Water Monitoring) 5. Environmental Monitoring Stations - Water Sites (Water Permits) 6. Environmental Monitoring Stations - Water Sites (Well) 7. Environmental Monitoring Stations - Water Sites (Observation Well) 8. Environmental Monitoring Stations - Water Sites (Spring)

Environmental test results, including physical, chemical and biological analyses of samples taken from water, air, solid waste discharges and ambient monitoring sites throughout the province. Samples are collected by either ministry staff or permittees under the Environmental Management Act and then analyzed in public or private sector laboratories. Code information Support Tables are available on the EMS [website](https://www2.gov.bc.ca/gov/content?id=90A61A67831A4D108859FF77E74C2D4A). The environmental monitoring locations are available in this [geographic dataset](https://catalogue.data.gov.bc.ca/dataset/634ee4e0-c8f7-4971-b4de-12901b0b4be6). You can view EMS data from surface water monitoring sites located throughout the province [here](https://governmentofbc.maps.arcgis.com/apps/webappviewer/index.html?id=0ecd608e27ec45cd923bdcfeefba00a7)