NS Government Lake Survey Data

The Nova Scotia Lake Survey program is a partnership initiative between Nova Scotia Environment (NSE) and Nova Scotia Fisheries and Aquaculture (NSDFA) to inventory lakes throughout the province determining baseline water quality, in support of both sport fisheries and water resource management areas.

Citation

Government of Nova Scotia, Fisheries and Aquaculture. 2022-04-30. "NS Government Lake Survey Data" (dataset). 2.0.0. DataStream. https://doi.org/10.25976/r2b8-7966.

Data Collection Information

Water quality samples are collected at approximately 10 different lakes per annum, generally during the summer and early fall months. Samples are typically collected from the surface (0 m), at 2x the Secchi disc depth (dependent on lake depth), thermocline (if present) and just above the lake bottom. The samples are submitted to the Nova Scotia Environmental Services Laboratory operated by the Nova Scotia Health Authority in Halifax, NS for analysis. Field parameters are measured using a multiparameter instrument with cable attached probe. The following are the monitored water quality parameters and applicable measurement units: field temperature (°C), field dissolved oxygen (mg/L), Secchi disc depth (m), select metals (µg/L), calcium (mg/L), magnesium (mg/L), hardness as CaCO3 (mg/L), lab conductivity (umho/cm), lab pH (-), lab turbidity (NTU), alkalinity as CaCO3 (mg/L), chloride (mg/L), colour (TCU), silica (mg/L), sulphate (mg/L), total nitrogen (mg/L), nitrate and nitrite as N (mg/L), ammonia as N (mg/L), orthophosphorus as P, (mg/L), total phosphorus (mg/L), total suspended solids (mg/L), total organic carbon (mg/L), chlorophyll a (mg/m3) and pheophytin (µg/L).

Bathymetric maps have been produced for most of the sampled lakes and the surface area measurement is included in the dataset.

Open Government Licence (OGL)

See disclaimer for details. https://novascotia.ca/opendata/licence.asp

Data Disclaimer

The most recent data can be downloaded from the following link: https://data.novascotia.ca/Environment-and-Energy/Nova-Scotia-Lake-Chemistry-Data/vn55-yjyi This dataset is made available under the Open Government License – Nova Scotia https://novascotia.ca/opendata/licence.asp.The Province of Nova Scotia makes no representations, express or implied, as to the accuracy, completeness and timeliness of the information, maps and other data provided through this application. The mapping is a graphical representation not based on survey and cannot be used for any legal or navigational purpose. Any conclusions drawn or decisions made, based on an interpretation of the data, are the sole responsibility of the user. By continuing to use the application, the user agrees to the terms of this disclaimer.

API Access

curl -G https://api.datastream.org/v1/odata/v4/Records --data-urlencode "\\$filter=DOI eq '10.25976/r2b8-7966'" -H "x-api-key: PRIVATE-API-KEY"

Changelog