Chanza

As of September 7, 2026, Chanza is filled to 59.5% of its total capacity, holding roughly 201 hm³ of water out of a maximum 338 hm³. At this level the reservoir is within its normal operating range. Of that total, about 304 hm³ is usable (live) storage.

Over the most recent week on record the fill level has fallen by 1.7 percentage points, and it is 8.0 points below its level on the same date a year earlier.

Across the readings we hold for Chanza — 419 data points between September 4, 2018 and September 7, 2026 — the level has ranged from a low of 35.2% (January 11, 2022) to a high of 96.7% (April 1, 2025). On average the reservoir is fullest around April and at its lowest around October.

It is operated by CHSU primarily for multiple purposes. It lies within the Guadiana basin at 37.600°N, 7.454°W.