14. Black Fan Lagoon
Theme: Water Quality, Habitats and Wildlife
- That water quality, temperature and river bed quality are such that they support chalk stream ecology
To ensure that Black Fan Lagoon does not pollute the Mimram
Black Fan lagoon is a holding pond for waste water before it is discharged into the Mimram at Tewinbury. It is important that the lagoon does not act as a source of pollution - oil, silt and algae – which could be discharged directly into Mimram.
To help check this, one of the Riverfly Monitoring sites is at outflow from Blackfan into the Mimram.
In addition, no organisation will yet admit to ownership of Blackfan Lagoon. However the Environment Agency did get Thames Water (the most likely owners) to clear a pollution outflow in 2014.