The director common of the United Nations’ nuclear watchdog mentioned Monday he was en path to Ukraine to evaluate the scenario on the Zaporizhzhia Nuclear Power Plant after a dam breach depleted water ranges within the reservoir it makes use of to chill reactors and spent nuclear gasoline.

The director, Rafael Mariano Grossi, said he would meet with President Volodymyr Zelensky of Ukraine and current a plan for help within the aftermath of floods unleashed by the destruction of the Kakhovka dam final week. The breach of the dam despatched water from the Dnipro River coursing downstream and dramatically lowered the quantity of water within the Kakhovka reservoir.

Mr. Grossi mentioned over the weekend that whereas there was no speedy risk to the water provides on the Zaporizhzhia plant, the U.N. nuclear watchdog was urgently looking for contemporary knowledge about depleting water ranges within the reservoir.

He mentioned there have been discrepancies between the water stage readings taken by Ukrainian officers upstream of the Kakhovka dam, and the readings that have been taken on the Zaporizhzhia plant, which is subsequent to the reservoir and is beneath Russian management. Ukraine controls the western banks of the reservoir, whereas Russia holds components of the jap financial institution.

At least 14 folks have died because of the dam catastrophe, which has additionally prompted widespread environmental injury and left a whole lot of 1000’s of individuals with out entry to wash consuming water. The drop within the reservoir’s water stage additionally presents the newest threat to the nuclear plant, the most important in Europe, which was seized by Russian troops close to the beginning of Moscow’s full-scale invasion of Ukraine in February final 12 months.

Even although the nuclear plant has not been producing electrical energy for a number of months now, “it still needs access to water and power for cooling and other essential safety and security functions and to avoid the risk of a potential fuel meltdown and release of radioactive material,” the I.A.E.A. said in a statement on Sunday.

Water to chill the plant’s six reactors and carry out different crucial security capabilities is provided by way of a pond on the power’s grounds that’s fed by the reservoir. The pond, which is greater than two miles lengthy, greater than a mile vast and round 50 toes deep, incorporates sufficient water to fulfill the plant’s wants for “several months, ” Mr. Grossi mentioned. But it additionally must be supplemented with reservoir water, which suggests correct monitoring of the reservoir’s water stage is essential.

Mr. Grossi mentioned that there’s a discrepancy of round six toes between water stage readings taken on the thermal energy plant on the nuclear facility’s grounds and readings taken elsewhere on the reservoir.

Inspectors from the I.A.E.A who’ve been stationed on the plant since final 12 months want entry to the thermal plant to grasp the rationale for the distinction, Mr. Grossi mentioned. Ukrainian employees proceed to function the plant however safety and entry is managed by Russian troops.

Five of the plant’s six reactors are in chilly shutdown mode, the most secure state of operation, whereas the sixth stays in sizzling shutdown to supply steam to help processes that contribute to security on the positioning, the I.A.E.A. mentioned in its assertion on Sunday. That appeared to contradict an earlier assertion from Ukraine’s state nuclear firm, which mentioned that the final reactor nonetheless producing vitality on the plant had been put into a “cold shutdown” — a state by which it not generates electrical energy — as a security precaution after the destruction of the dam threatened its water provide.

The cooling pond has grow to be much more necessary for sustaining the steadiness of the plant for the reason that dam was breached, and Mr. Grossi mentioned final week that nothing ought to be completed to wreck it.

Over the previous 12 months, shelling has minimize exterior energy provides to the plant and in addition hit an space the place spent gasoline is saved. Mr. Grossi has repeatedly warned of the potential for nuclear disaster on the plant.

In addition, Kyiv’s forces have not too long ago launched a counteroffensive in southern Ukraine that raises the opportunity of army confrontation within the plant’s neighborhood.