Dear Sir, I am working with design of STP for both residential as well as industrial buildings. Please provide the standard rules/regulations to be checked every time we propose a STP. Please provide a rule book or a publication with the following details. Despite searching strenuously all PCB notifications or standards, I couldn't find the details clearly. Proximity of nearby residences to the sewage treatment plant in india Proximity of sumps to the sewage treatment plant in india Proximity of residential or any building in the same site to its sewage treatment plant in india Setback from road Setback from any other structure Please clarify. Thank you.