Lake Tekapo is low, but it's not unusual for this time of year, Genesis Energy says.
The lake was sitting at 41 per cent of its maximum level, leaving room for expected spring snow-melt and rain, Genesis spokesman Richard Gordon said.
"September-October weather usually sees the lake level rise."
Keeping the lake low is also part of Genesis Energy's long-term work on the hydro canals.
"Work on the canals is planned to begin again in January, so we're keeping it low to accommodate that," Mr Gordon said.
For Tekapo locals, the low level is nothing unusual.
"When I looked at the level the other day, I actually thought it was reasonably high for this time of year," said Mackenzie district councillor Peter Maxwell, who lives in Tekapo.
"Plus or minus 10 metres isn't unusual."
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