Guidance for risk assessment of wastewater discharges to surface waters

This guidance provides a step-by-step guide to assess the environmental and human health risks associated with point-source wastewater discharges to surface waters. It has been developed to help those responsible for prescribed permission activities (as defined in the Environment Protection Regulations 2021) involving wastewater discharges to surface waters, and the risk assessors/consultants conducting environmental and human health risk assessments on their behalf. This guidance supports minimising the risk of harm to human health and the environment, and provides information that will help permission holders to comply with their legal obligations and meet community expectations.