Operating permits - water systems — water quality reports

This dataset encompasses all operating permits issued since the start of the operating perm​it program (2019-present). It includes a complete history of water quality reports. Operating permits are req​uire​d for new and existing cooling towers, decorative water features, building water treatment systems and r​ainwater harvesting/non-potable water systems. Voluntary participants in the operating permit program are not included. Once through cooling operating permits are not included.

Operating permits for water systems allow the City and health authorities to respond more effectively to incidents, mitigate health risks by pathogens (such as Legionella pneumophila) and ensure on-going compliance with public health protection standards. See the Operating Permit webpage for more details.

Please refer to the companion dataset
Issued operating permits – water systems ​for a list of currently issued ​operating permits with the most recent water quality reports.​​​ NoteWater quality data are self-reported by permit holders. There may be data entry errors and omissions.​ Data currency​Data are updated daily. Data accuracyWater quality data and system status are self-reported by permit holders. The data are subject to audit and may be corrected after the initial submi​ssion by a permit holder. Websites for further information
Operating ​permits​​