The SES is warning that as much as 80ml of rain is expected on Friday and Saturday this week.
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SES Controller Nicolas Orchard has out-of-area crews on stand-by for emergency flooding forecast for the weekend.
He urges farmers to move stock out of low-lying areas and see whether property protection is required early, due to the heavy rains forecast.
“Don’t leave it to the last minute before you evaluate flood-prone areas,” he said.
The SES will be on high alert for Thursday and Friday and also leading into the weekend.
Please stay clear of causeways and low-level crossings and do not enter any waterways.
The long rainy period in Upper Lachlan means that all its water supply storage is at full capacity, but this has brought problems.
Upper Lachlan manager of operations, Luke Moloney, told the most recent council meeting the above-average rainfall and saturated soil conditions had resulted in continuing high waste water flows, particularly in Crookwell.
He said the council’s sewer relining program in Crookwell was continuing and expected to eventually reduce the major storm water inflow and infiltration of the system.
Mr Moloney said the Crookwell, Gunning and Taralga sewerage treatment plants were operating effectively, with effluent quality complying with EPA requirements.
Laurie Curran Water, the contractor for the $6 million upgrade of the Crookwell water treatment plant, is progressing detailed designs, and construction is expected to begin soon, weather permitting.
Mr Moloney added that council staff have progressed design and planning for additional components for the project, including extensive water main renewal, updated irrigation systems for sporting fields, emergency electricity supply provision, and the potential for solar power inclusion in the new facility.
At Gunning, construction of the sewer main to the Grosvenor St area has been completed, and the area is expected to be ready for connection late this year.