Industrial Wastewater Discharge Reports for Ontario

Quarterly industrial wastewater monitoring data submitted to the Ontario Ministry of the Environment under EMEL/MISA regulations. The dataset is organized by individual reporting years and includes discharge measurements and compliance information. Data is provided in formats including XLS, PDF, and XLSX.

Use Cases

• Analyze quarterly discharge trends and compliance status under EMEL/MISA regulations
• Model pollutant concentration levels from reported effluent monitoring data
• Assess regulatory reporting patterns across different industrial sectors and years

Strengths

• Data is mandated by provincial regulation (EMEL/MISA), ensuring systematic collection
• Reports are submitted quarterly, providing regular temporal granularity
• Available in structured formats like XLS and XLSX for analysis

Limitations

• Specific column names, row counts, and data volume are unknown, limiting pre-assessment
• Data is presented by individual years, which may require manual aggregation for multi-year analysis
• Sample data is unavailable to verify structure and content before download

Provenance

Source

Government of Ontario, Ministry of the Environment

Collection Method

Mandatory quarterly reporting by industrial facilities under Effluent Monitoring and Effluent Limits (EMEL/MISA) Regulations

Time Range

Data is available by individual years; specific start and end years are unknown.

Freshness

Updated quarterly, with a platform last updated date of 2026-03 18.

Geography

Ontario, Canada