AS/NZS 1547:2000

Specifies requirements for on-site domestic wastewater systems including both primary and secondary wastewater treatment units and associated land-application systems. The Standard gives specific details for septic tanks for domestic all-waste, blackwater and greywater; and specific details for land-application and absorption systems, including conventional trenches and beds, evapo-transpiration systems, mounds and irrigation areas.

SCOPE AND INTERPRETATIONSystems coveredThe on-site domestic-wastewater systems covered by this Standard include both primary and secondary wastewater-treatment units and associated land-application systems. The Standard gives specific details for septic tanks for domestic all-waste, blackwater and greywater; and specific details for land-application and absorption systems, including conventional trenches and beds, evapo-transpiration systems, mounds and irrigation areas. These are regarded as the current most commonly used systems and are used as examples throughout the Standard.System sizeThe systems covered in this Standard are designed for wastewater flows up to a maximum of 14 000 L/ week, from a population equivalent of up to 10 persons.Greywater reuseThis Standard covers the subsurface land-application of greywater after primary treatment. It does not cover the direct application of greywater onto land for reuse purposes, nor does it provide details of greywater-diversion systems.InterpretationThe word “shall” identifies a mandatory “should” refers to practices which are advised or recommended.

First published in Australia as part of Int 320-1951.
AS CA13 first published 1968.
Revised and redesignated AS 1547-1973.
Int 320-1951 and AS 1547-1973 revised, amalgamated and redesignated AS 1547-1994.
First published in New Zealand as NZS 4610:1982.
AS 1547-1973 and part of NZS 4610:1982 jointly revised, amalgamated and redesignated as AS/NZS 1547:2000.