Change description : 2026-05-07 11:51:00: We have published the new standard rules for SR2025 No 5, No 6 and No 7. See the ‘Detail of outcome’ section. [Policy papers and consultations]
The consultation document sets out 3 standard rules and the supporting generic risk assessments. They cover:
discharges of treated sewage effluent to ground of more than 2 cubic metres per day but not more than 5 cubic metres per day (SR2025 No 5)
discharges of treated sewage effluent to ground of no greater than 1.5 cubic metres per day which are discharged using a shallow drainage system that does not conform to the British Standard, and which are replacing an existing discharge to surface water or to ground (SR2025 No 6)
discharges of treated sewage effluent to surface water which achieve secondary treatment using equipment that does not conform to the British Standard or where the receiving watercourse does not always have flow, or both (SR2025 No 7)