PPS 21 Sustainable Development in the Countryside·Page 46·CTY 16
Policy CTY 16 – Development Relying on Non-Mains Sewerage
Planning permission for development using non-mains sewerage will only be granted where the applicant demonstrates it will not create or add to pollution problems. In areas with identified pollution risk, such development is only permitted in exceptional circumstances.
Planning permission will only be granted for development relying on non-mains sewerage, where the applicant can demonstrate that this will not create or add to a pollution problem.
Applicants will be required to submit sufficient information on the means of sewerage to allow a proper assessment of such proposals to be made.
In those areas identified as having a pollution risk development relying on non-mains sewerage will only be permitted in exceptional circumstances.
Source — /Users/richardhill/Documents/planning-arch-project/data/documents/regional/PPS 21 - Sustainable Development in the Countryside.pdf