There is still no firm date from when Katherine's new water treatment plant will be operational.
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Now in their third year of water restrictions, residents are keen for the town's water emergency to be over.
Restrictions were first imposed on the town because of PFAS contamination back in August 2017.
Power and Water last week announced the larger water treatment plant had been ordered from the US but gave no date on when it would be working.
"Power and Water aims to have the new treatment plant operational as soon as possible after it has been delivered, which is now anticipated to be early in 2020," water services general manager Steven Porter said this week in response to questions from Katherine Times.
Power and Water said the "long lead items" had been ordered last month.
Those long items have been identified as the key components of the treatment plant, which includes the resins and fabrication materials for tanks, pipes etc.
"As with the pilot treatment plant, the new and larger system will be manufactured in the US and transported in modules, which will arrive in Katherine later in the year," Mr Porter said.
"It will then be put together and connected to the pre-prepared site at the Katherine Water Treatment Plant."
The technology of the new plant is expected to be similar to the existing ECT2 emergency plant, capable of cleaning PFAS from about one megalitre of bore water per day.
The new plant will be capable of processing 10 megalitres per day, or all of Katherine's drinking water requirements.
Power and Water first identified the need for a larger plant, and not the location of new contamination-free bores, back in April last year.
Negotiations with the Department of Defence on paying for the plant, with an expected $15m price tag, continued through last year.
Site works to prepare for the arrival of the plant will start at the town's water treatment plant in July.
Officials say the town's drinking water remains safe to use.
A Power and Water spokeswoman said the new plant would provide further reassurance that Katherine's drinking water will continue to be safe as it will meet the town's current and forecasted water use demands.
Power and Water will have a scale model of the new plant for display at the upcoming Katherine Show.
Odd numbered properties are permitted to irrigate Monday, Wednesday and Saturday from 6pm - 8am.
Even numbered properties are permitted to irrigate Tuesday, Thursday and Sunday from 6pm - 8am.
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