Guidelines for drinking water transport in the Northern Territory
Northern Territory. Department of Health
E-Publications; E-Books; PublicationNT
The purpose of these guidelines is to specify public health requirements for water carters delivering drinking water to domestic and commercial customers in the Northern Territory.; Made available via the Publications (Legal Deposit) Act 2004 (NT).
The Department of Health acknowledges and thanks the Environmental Health Branch of the NSW Department of Health and the Department of Health, Victoria. This publication is based on the NSW Health Guidelines for Water Carters (27 January 2005) and the Guidelines for Potable (Drinking) Water Transport in Victoria.; Made available via the Publications (Legal Deposit) Act 2004 (NT).
Introduction -- Legal obligations -- Water quality - Australian drinking water guidelines - Treatment -- Water tank and vehicle - Transport of drinking water - Water transport vehicle construction -- Cleaning -- Record keeping - Delivery record
Drinking water -- Standards -- Northern Territory; Drinking water -- Health aspects -- Northern Territory; Water quality management -- Northern Territory; Water supply -- Northern Territory -- Management
Northern Territory Government
10 pages ; 30 cm.
Attribution International 4.0 (CC BY 4.0)
Northern Territory Government
DEPARTMENT OF HEALTH 3. WATER QUALITY 3.1. Australian Drinking Water Guidelines Water carters supplying drinking water for human consumption, should obtain water from a water source that complies with the national Australian Drinking Water Guidelines (ADWG) developed by the National Health and Medical Research Council (NHMRC). As a minimum, the supplied water must comply with the microbiological guideline value of the ADWG. (No detection of the indicator bacteria, E.coli, in a 100 ml sample) E.coli present in drinking water indicates that human or animal faeces have contaminated the water. Faeces can harbour a number of pathogenic, or disease causing organisms. The guideline value for E.coli, set in the ADWG, to ensure that drinking water is safe to consume is zero. It is the responsibility of the water carter to ensure that the water supplied to commercial and domestic customers complies with the ADWG. Note: When water that meets the ADWG is added to an empty water tank it may re-suspend any sludge present in the bottom of the water tank, potentially creating taste and turbidity problems. The water carter should advise the customer of this potential issue, and ideally water should be added to a tank that was cleaned and sanitised prior to filling. 3.2. Treatment Water sourced from a reticulated water supply will in most cases be sufficiently chlorinated to ensure the water is safe to drink, however it is the water carters responsibility to maintain an adequate chlorine residual until the water is supplied to the consumer. If the source water is not chlorinated, it should be chlorinated prior to carting by the operator. An adequate free available chlorine residual lies between 0.5 -1.0mg/L. Free available chlorine (FAC) refers to chlorine that is free to disinfect the water and kill bacteria and disease causing organisms, because it has not reacted with any other substance in the water. Table One on page 9 provides information on achieving the required free chlorine residuals for cleaning purposes. For further information on disinfection of water with chlorine refer to the Environmental Health Bulletin: Disinfection of Water Tanks http://www.health.nt.gov.au/Environmental_Health/Water_Quality/index.asp x#FactSheetsWaterQuality Page 6 of 10 Department of Health is a Smoke Free Workplace http://www.health.nt.gov.au/Environmental_Health/Water_Quality/index.aspx#FactSheetsWaterQuality http://www.health.nt.gov.au/Environmental_Health/Water_Quality/index.aspx#FactSheetsWaterQuality
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