Soil Risk and/or Risk Category and Tables and Designs System Modelling Constraints of Property (from Capability Risk Maps and LCA Rating) Site Design Sizing Assessment Assessment Land Detailed Cumulative Standard and Basic Assessment Pollutant Residential Development Applications Low on-site wastewater risk X X Moderate on-site wastewater X X risk High on-site wastewater risk X X X Fails to comply with setback X X distances <4,000 m2 X X X Within a potable drinking water X X X catchment or bore field Commercial or Light Industrial Development Applications Low on-site wastewater risk X X Moderate on-site wastewater X X risk High on-site wastewater risk X X X Fails to comply with setback X X X distances The proposed built out areas will exceed 60% of the total land X X X area Within a potable drinking water X X X catchment or bore field Table 3.2: Assessment Framework for Unsewered Development for Subdivision Developments Risk Category and with Risk Constraints of Property and/or Lot Tables Lot and Proposed Designs System Modelling Subdivision Lots (from Capability Application Design Risk Maps and LCA Sizing Basic Detailed Rating) Assessment Configuration Land Detailed Cumulative Land Standard and Configuration Assessment Pollutant Residential Subdivision Development Applications
Risk Category and Constraints of Property (from Risk Maps and LCA Rating) Basic Site and Soil Assessment Land Capability Assessment Standard Designs and Sizing Tables Detailed System Design Cumulative Risk Assessment and/or Pollutant Modelling Residential Development Applications Low on-site wastewater risk X X Moderate on-site wastewater risk X X High on-site wastewater risk X X X Fails to comply with setback distances X X <4,000 m2 X X X Within a potable drinking water catchment or bore field X X X Commercial or Light Industrial Development Applications Low on-site wastewater risk X X Moderate on-site wastewater risk X X High on-site wastewater risk X X X Fails to comply with setback distances X X X The proposed built out areas will exceed 60% of the total land area X X X Within a potable drinking water catchment or bore field X X X Table 3.2: Assessment Framework for Unsewered Development for Subdivision Developments Risk Category and Constraints of Property and Proposed Subdivision Lots (from Risk Maps and LCA Rating) Land Capability Assessment Standard Designs and Sizing Tables Detailed System Design Basic Lot Configuration Detailed Lot Configuration with Land Application Cumulative Risk Assessment and/or Pollutant Modelling Residential Subdivision Development Applications
guidelines-land-capability-assessment-onsite-wastewater-management.docx