(a) Where any person has obtained approval to discharge into any drain any liquid or solid matter, other than soil water or waste water, and where any additional drainage and other installations including storage, pre-treatment and metering installations are required by the local municipality as a condition of such approval, such person must submit any plans and other details of such installations required by the local municipality.
(b) The installations must be constructed in accordance with the relevant requirements of these regulations and must be maintained in good working order.