Streams such as the Hawkesbury-Nepean Rivers system below Sydney Water storages and other rivers below urban water supply or other specific purpose dams are 'unregulated' in terms of the Water Act 1912, because the rivers are not gazetted and the stored water is not released for the purpose of supplying licensed water users downstream. No metering of water use occurs. Dozer Licence A dozer licence holder has partially used their water entitlement. Security of use may be changed by altering the conditions on a licence. Conversion from one security to the other is possible.
Conversion factors apply and there is limits on how much high security a stream can accomodate.
The entitlement holder's share of supply is a fixed yearly volume made available in all but the most extreme drought years. Terms for such licences are either 5 or 10 years, depending on type of use. Stock, domestic and town water attract 10 yr terms. All high yield bores must be metered. There are approx.