This document was written to provide a brief overview of water supply modelling activities, intending to present some principles of 'Good Modelling Practice', for people involved in undertaking and managing water supply modelling projects.
This document provides guidelines for accounting for methane (CH4) and nitrous oxide (N2O) emissions from municipal wastewater treatment, discharge and sludge processing in New Zealand. Emissions from on-site septic tanks are also covered.
This Guide covers requirements for ensuring liquefied chlorine gas (commonly known as liquid chlorine) sodium hypochlorite and calcium hypochlorite are of a suitable quality for use in drinking water treatment.
The demands and expectations of New Zealand wastewater networks systems are increasingly coming under pressure, in some situations the traditional gravity sewer network is no longer the best solution to provide communities the public health benefits that a wastewater network provides.
The 4 edition of the New Zealand Gravity Pipe Inspection Manual incorporates the evolution of pipeline inspection and the changing requirements of the water industry since the publication of the 3 Edition in 2006.
The Renewals Framework developed in this document provides a structured process that organisations can use to plan renewals. The Framework shows how organisations can use existing data in a meaningful way. Importantly, the Framework can be scaled and modified to suit the needs of an organisations.
Guidelines for beneficially reusing organic materials on land are under development. The guidelines will supersede 2003 Guidelines for the Safe Application of Biosolids to Land and include additional organic material such as animal manures, and other agricultural waste materials, which also contain pathogens and contaminants.
The purpose of these guidelines is to provide good practice protocols for undertaking wastewater (sewer) network modelling in New Zealand.
This good practice guide is intended to prescribe good practices for the supply, use, and operation of water meters throughout the country by a company, authority, or organisation.
This Good Practice Manual has been developed to assist water infrastructure Asset Managers with understanding the condition and likely remaining life of their Asbestos Cement (AC) pressure pipelines.