Septic tanks and private sewage systems
                        Register your septic tank or small sewage (package) treatment plant
                        Running and maintaining a septic tank or small sewage plant
                        What to do if you have been refused a registration for a septic tank or private sewage treatment system
                        Apply for a permit to discharge domestic sewage
                        Change (vary) an existing permit for a discharge of domestic sewage
                    Transfer your permit for water discharges
                    Surrendering (giving up) your permit for water discharges
                        Private sewage treatment in an area with a public sewer