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Revision as of 19:50, 16 August 2016

Water harvesting and use system matrix
Link to this table

Beneficial Uses
Stormwater from rooftops only (rainwater)
Stormwater
Health criteria Level Level of effort1 Health criteria Level Level of effort1
Outdoor Sanitary sewer flushing Limited human exposure at point of use and limited exposure to pathogens upstream of point of use No treatment needed Limited human exposure at point of use and limited exposure to pathogens upstream of point of use Minimal
Irrigation – low exposure risk Limited human exposure at point of use and limited exposure to pathogens upstream of point of use Minimal Limited human exposure at point of use and limited exposure to pathogens upstream of point of use Minimal to Medium
Irrigation – high exposure risk Limited human contact and controlled access at point of use Minimal to Medium Limited human contact and controlled access at point of use Medium to High
Vehicle/building washing Limited human contact and controlled access at point of use Minimal to Medium Limited human contact and controlled access at point of use Minimal to Medium
Fire fighting Limited human exposure at point of use and limited exposure to pathogens upstream of point of use Minimal Limited human exposure at point of use and limited exposure to pathogens upstream of point of use Minimal to Medium
Water features (uncontrolled access) Limited human contact and controlled access at point of use Medium Limited human contact and controlled access at point of use Medium
Street cleaning/ dust control Limited human contact and controlled access at point of use Minimal to Medium Limited human contact and controlled access at point of use Minimal to Medium
Indoor Fire supression Limited human contact and controlled access at point of use Medium Limited human contact and controlled access at point of use Medium
Cooling Limited human contact and controlled access at point of use Minimal to Medium Limited human contact and controlled access at point of use Minimal to High
Process /Boiler Water Limited human contact and controlled access at point of use Minimal to Medium Limited human contact and controlled access at point of use Minimal to High
Flushing Uncontrolled access at point of use Minimal to Medium Uncontrolled access at point of use Medium to High
Washing Uncontrolled access at point of use Medium Uncontrolled access at point of use Medium to High
Drinking water Drinking water standards Drinking water standards Drinking water standards Drinking water standards

1Minimal - pretreatment; Medium - pretreatment + disinfection OR pretreatment + treatment; High - pretreatment + treatment + disinfection