Aerial sur­vey of chan­nels un­der way

The Tatura Guardian - - News -

Goul­burn-Mur­ray Wa­ter has ad­vised landown­ers that a lowfly­ing he­li­copter will be check­ing drained G-MW chan­nels in the Shep­par­ton, Mur­ray Val­ley and Cen­tral Goul­burn ir­ri­ga­tion ar­eas.

G-MW cus­tomer in­fra­struc­ture and as­sets man­ager Marc Lon Ho Kee said the he­li­copter op­er­a­tor Aus­tralian Aerial Map­ping Group would check chan­nels for leaks and seep­age, and ad­di­tional weed and silt build up.

‘‘The im­ages cap­tured dur­ing the sur­vey will help us plan fu­ture main­te­nance works to en­sure the on­go­ing ef­fi­cient de­liv­ery of wa­ter to our cus­tomers’ prop­er­ties via our ir­ri­ga­tion de­liv­ery net­work,’’ he said.

The op­er­a­tor will use Light De­tec­tion and Rang­ing, a re­mote sens­ing method that uses light in the form of a pulsed laser to cap­ture in­for­ma­tion.

The data will be used by G-MW to:

Check the chan­nel wa­ter­way pro­file;

Check bank (height and width);

Model wa­ter flow that will then be used to iden­tify chan­nel ca­pac­ity is­sues and help pri­ori­tise main­te­nance; and

Iden­tify silt build up. Mr Lon Ho Kee said the aerial sur­vey was be­ing done now as the chan­nels had been drained to carry out spray­ing of the nox­ious weed ar­row­head with the her­bi­cide Ar­se­nal Xpress

con­di­tion dur­ing the ir­ri­ga­tion off-sea­son (May 15 to Au­gust 15).

‘‘We would like to take this op­por­tu­nity to re­mind ev­ery­one liv­ing by the chan­nels that have been sprayed that they should not use wa­ter from the chan­nels for do­mes­tic pur­poses or stock or veg­e­ta­tion wa­ter­ing be­fore Au­gust 15,’’ he said.

G-MW has writ­ten to all land­hold­ers liv­ing along the chan­nels ad­vis­ing them of the spray­ing and aerial pro­grams.

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