Surface water quality data collected by the City of Calgary's Watershed Monitoring Program. The program uses accredited ISO/IEC 17025 laboratory methods and grab sampling across rivers, tributaries, and reservoirs. Data includes parameters, results, and sampling locations.
Use Cases
- Analyze trends in Parameter concentrations like nutrients or metals over time using Sample Date and Numeric Result.
- Map pollution sources or spatial gradients using Latitude (Degrees) and Longitude (Degrees) coordinates paired with Formatted Result.
- Identify sampling sites with frequent exceedances by filtering Result Qualifier for values like 'U' (undetected) or other flags.
- Compare water chemistry across different water bodies like the Bow River or Glenmore Reservoir by joining on Sample Site and Parameter.
- Assess data reliability and detection limits by examining Result Qualifier and Result Units for methodological changes over time.
Strengths
- Laboratory accredited to ISO/IEC 17025 standard, ensuring analytical reliability.
- Data includes spatial coordinates (Latitude, Longitude) for geospatial analysis.
- Multiple parameters monitored across a network of rivers, tributaries, and reservoirs.
Limitations
- Sample size and temporal coverage are unknown, limiting trend analysis scope.
- Sampling locations have been added, removed, or modified over time, complicating longitudinal site comparisons.
- Specific data volume (rows) and completeness metrics are not provided.
Provenance
- Source
- City of Calgary's Watershed Monitoring Program via data.calgary.ca.
- Collection Method
- Grab sampling with accredited analytical testing methodologies.
- Time Range
- null
- Freshness
- null
- Geography
- Rivers, tributaries, and reservoirs within the Calgary region.