The Water Resources Act 1991 specifically provides for conditions requiring the installation, maintenance and testing of flow meters to measure and record the volume and rate of discharges. The Environment Agency has a duty to enforce the requirements for the provision of equipment suitable for the self monitoring of effluent flows. The Act also enables the Environment Agency to require the dischargers to keep records and make returns to the Environment Agency.
The Environment Agency will audit by inspection the implementation of sel. monitoring of flow
measurement by dischargers (of both industrial and sewage effluents). This manual has
been prepared to provide the guidelines to be employed in this audit procedure.