In Tallinn, Estonia, the consumption of water has decreased threefold compared to Soviet times, raising concerns about the potential depletion of Lake Ülemiste's waters, which could be exhausted in less than a year if residents continue their current use. Lake Ülemiste, hidden behind fences and thick foliage, is not the type of scenic lake that attracts visitors or swimmers; in fact, swimming is prohibited there. Its average depth is only about 2.5 meters, resting on a bed of mud that varies between 5 to 8 meters deep. The area's lack of visibility and access has contributed to a general apathy towards its status as a vital water source for the city and its historical significance since medieval times.

The Lake's water quality officials, Kristiina Soovik and Kristiina Tamberg from Tallinna Vesi, highlight concerns over the lake's health and the implications of water quality on the municipal supply. A sign at the entrance of the wastewater treatment facility warns of the seriousness of the situation; however, the municipal water system has relied heavily on Lake Ülemiste without adequate public awareness or alternative sources being established. The potential depletion of the lake not only poses risks to the long-term water security of Tallinn but also signifies an urgent need for residents and authorities to take action.

As the city grapples with these pressing water issues, the situation serves as a reminder of the delicate balance between urban development and environmental conservation. It calls into question the sustainability of water resources in urban contexts and the responsibility of municipalities to safeguard natural resources against overconsumption. The risk of depleting Lake Ülemiste may push city planners to explore alternative water sources or tighter regulations on water use, driving discussions about water conservation efforts in Estonia further into the public consciousness.