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    <h2>How does E. Coli get into the water supply? Does the council do anything to prevent it from happening or just deal with it after the fact?</h2>
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        <p>The National Medical Health and Research Council published the Australian Drinking Water Guidelines 2011.  The Australian Drinking Water Guidelines (ADWG) are intended to provide a framework for good management of drinking water supplies that, if implemented, will assure safety at point of use.  They provide a basis for determining the quality of water to be supplied to consumers in all parts of Australia.  Council bases their maintenance and monitoring programs around these Guidelines.  These Guidelines also provide an indication in regards to chlorination of the water supply.  They state “a combined available residual chlorine level of 0.5 mg/L after a contact time of 30 minutes should be sufficient to ensure microbial control”.  The NSW Health also endorses the level of Chlorine required for safe drinking water.  Chlorine is the only chemical added to the Trangie water supply and is for the sole purpose of disinfection.  The levels of chlorine in the water supply at Trangie are tested 3 times a week to ensure that the systems are adequate.</p>
<p>Escherichia coli, also known as E. coli is a bacterium that is commonly found in the gut of warm blooded organisms.  Presence of E. coli in a reticulation system can indicate the following:</p>
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    <li>source water quality and potential impacts of human and animal waste;</li>
    <li>inadequate treatment;</li>
    <li>post-treatment ingress of human and animal waste into distribution systems.</li>
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