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Wastewater lagoon construction guidelines

Environment Protection Authority Wastewater guidelines Wastewater lagoon construction Updated April 2019 EPA 509/19 : This guideline replaces Wastewater and evaporation lagoon construction (2004). It advises those proposing to build Wastewater lagoons on construction techniques that should assist in meeting obligations under the Environment Protection Act 1993 and relevant environment protection policies. The guideline is intended for Wastewater lagoon proponents and their engineers or consultants. This guideline is not intended for leachate lagoons for landfill facilities. For further guidance on the requirements for landfill facilities, refer to Environmental management of landfill facilities solid waste disposal. Purposes of t he guideline The principal objectives of this guideline are to: safeguard the protected environmental values of surface or groundwater minimise the potential for site contamination provide clarity regarding criteria used for the assessment of Wastewater lagoon proposals assist Wastewater lagoon proponents in meeting the requirements of: the Environment Protection Act 1993

mixing treated or untreated wastewater, and ponds on industrial sites used for capturing potentially contaminated stormwater runoff from their premises • processing and wastewater lagoons for chemical, manufacturing and mining industries. 2 • lagoons used for digestion, dewatering and drying wastewater and water treatment sludge.

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