Southern Water supports the inclusion of odour within the policy wording of DEN7: Environmental Pollution.

A few of the sites identified in the DaSA are in close proximity to our treatment works. Southern Water endeavours to operate its wastewater and sludge treatment works efficiently and in accordance with best practice to prevent pollution. However, unpleasant odours inevitably arise as a result of the treatment processes that occur.

New development must be adequately separated from wastewater treatment works to safeguard the amenity of future occupiers/users. Paragraph 109 of the National Planning Policy Framework (NPPF) requires that the planning system should prevent new development from being put at unacceptable risk from, or being adversely affected by unacceptable pollution. Annex 2 of the NPPF established that pollution includes odour and noise. Paragraph 120 of the NPPF states that 'To prevent unacceptable risks from pollution and land instability, planning policies and decisions should ensure that new development is appropriate for its location. The effects (including cumulative effects) of pollution on health, the natural environment or general amenity, and the potential sensitivity of the area or proposed development to adverse effects from pollution, should be taken into account'. Paragraphs 4.3.1 and 4.3.1 of the National Policy Statement for Wastewater state that 'Odours from waste water infrastructure can have a significant adverse impact on the quality of life of individuals and communities. Waste water infrastructure generates odour emissions during all stages of conveyance, treatment and storage. At waste water treatment works odours may arise from the inlet works; primary settlement tanks.