31. The operator of municipal wastewater treatment works must install, not later than on 31 December 2015, a device to record the overflows of wastewater at each overflow point which has had at least one overflow not caused by a case of emergency in the 3 years preceding 11 January 2014. The device must record the frequency of the overflows, the time when they occur and their daily cumulative duration.
O.C. 1305-2013, s. 31; I.N. 2014-02-01.