City briefing says Lake Geraldine is essentially full, with about 530 days of water at current demand
Iqaluit’s Lake Geraldine reservoir held about 1.664 million cubic metres of water as of Sept. 8, according to a City briefing prepared for the Sept. 15 Governance and Priorities Committee of the Whole meeting. The City estimates that volume equals roughly 530 to 540 days of supply at early-September consumption levels, while cautioning that the estimate is not a prediction because demand, inflows and other losses can change. Source↗ Source↗
What happened
The City says supplemental pumping from the Apex River stopped Sept. 3 after water began passing over Lake Geraldine’s spillway. It will keep pumping equipment in place until the end of September in case another top-up is needed and river flows allow it. The City says the seasonal program transferred 265,840 cubic metres to the reservoir in 2026. Source↗ Source↗
Why it matters
What happens next
Important details
August demand averaged 3,082 cubic metres a day. That was 3.9% below July, but 16.5% above August 2025. The City says 530 to 540 days is a volume-to-demand calculation, not a guarantee of how long the reservoir will remain sufficient.


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