Ef­flu­ent sys­tem up­graded

Pilbara News - - Opinion - Peter Long

Un­usu­ally for towns in Aus­tralia, Kar­ratha has al­ways re­cy­cled its waste wa­ter for use on green ar­eas around the city.

How­ever, our ef­flu­ent re­use sys­tem was age­ing and be­com­ing costly to main­tain — and it needed to be ex­tended to in­cor­po­rate the new sub­urbs to the west of town.

Through the Roy­al­ties for Re­gions pro­gram, some $113 mil­lion has been spent to up­grade and ex­tend our sewage treat­ment and ef­flu­ent re­use sys­tems.

You will have seen the ex­ca­va­tion works around town for the last cou­ple of years.

Some 18km of new pipe­line were in­stalled, half of which was to re­place and ex­tend our cur­rent re­cy­cled wa­ter sys­tem.

Work also in­volved new pump sta­tions at Cat­trall Park, Mil­lars Well Oval, Tam­brey Oval, Brolga Park and in the city cen­tre.

Our lo­cal waste­water pro­cess­ing plant has been up­graded to treat up to 10 mil­lion litres of waste­water a day and the re­cy­cling fa­cil­ity now has the ca­pac­ity to pro­duce up to 6 mil­lion litres of high­qual­ity re­cy­cled wa­ter each day.

The ef­flu­ent re­use scheme in­cor­po­rates the in­tro­duc­tion of in­tel­li­gent ir­ri­ga­tion tech­nol­ogy which is able to re­spond to tank wa­ter lev­els and ir­ri­gate spa­ces on a pri­or­ity ba­sis, so parks and ovals that re­quire reg­u­lar ir­ri­ga­tion still re­ceive wa­ter when sup­ply lev­els are low.

While some peo­ple may shud­der at the thought of what was once sewage be­ing sprayed on our parks and gar­dens, be as­sured the wa­ter is now treated to class A1 stan­dard.

This is a world-class project, pro­vid­ing great en­vi­ron­men­tal out­comes for our city.

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