For the first time, anyone in England can now access real-time information of where combined sewer overflows (CSOs) are discharging untreated wastewater into our waterways. This week, all water companies published details of how anyone can access the status of thousands of “event duration monitors”, devices that are placed on CSO outlets to record whether they are discharging sewage. For the first time, anyone in England can now access real-time information of where combined sewer overflows (CSOs) are discharging untreated wastewater into our waterways. This week, all water companies published details of how anyone can access the status of thousands of “event duration monitors”, devices that are placed on CSO outlets to record whether they are discharging sewage. Environment Phys.org – latest science and technology news stories