What is the current Ure Dam reservoir level and why does it matter?

The Ure Dam reservoir level is 4.5%. That low reading triggered Toyokawa water cuts of 20% for municipal use and 40% for industrial and agricultural users from 10 February. Lower storage tightens industrial water supply, which can slow production, raise costs, and create delivery delays for manufacturers in eastern Aichi.

How long could Toyokawa water cuts last?

The duration depends on rainfall and storage recovery. Cuts began on 10 February and remain in effect until authorities announce a change. If levels stay low, rationing could continue. A sustained rise in storage would support easing. Monitor official notices, precipitation forecasts, and plant updates for the earliest clues.

Which industries in Aichi are most exposed to the cuts?

Water-intensive operations face the most pressure: auto parts paint and coating, metal casting and machining, chemicals, paper, food processing, and greenhouse farming. These activities rely on steady process and cooling water. If curbs persist, expect reduced line speeds, more recycling cycles, and possible shift changes to manage limited supply.

What can companies do to reduce the impact on production?

Firms can recycle rinse water, tune cooling systems, prioritize critical lines, and defer non-essential cleaning. Some may add temporary storage, tap permitted wells, or arrange tanker deliveries. Clear communication with customers on lead times, plus cross-plant production balancing, can help protect orders while the local industrial water supply remains tight.

Global Market Insights

Japan Water Cuts February 11: Ure Dam at 4.5% Hits Aichi Industry

ByDanny Kontos February 11, 2026

The Ure Dam reservoir level has dropped to 4.5%, forcing new water restrictions across eastern Aichi. From 10 February, Toyokawa water cuts stand at 20% for municipal users and 40% for industrial and agricultural users. This tightens the industrial water supply and raises short-term production risk for factories in Toyokawa, Toyohashi, and nearby areas. We explain what the cuts mean, which sectors face pressure, and what data investors should track as Aichi drought 2026 concerns build.