Environmental aspects

Significant environmental aspects

Tallinna Vesi’s activity affects to a greater or lesser extent the quality of life and surrounding environment of Tallinners. As a responsible company we aim to operate in an environmentally friendly manner and reduce any adverse effect on the environment.

For that the Company has identified the aspects of the operation that cause or may cause the most significant changes in the surrounding environment. Based on the significance of those aspects, the environmental objectives of the Company have been set and necessary control mechanisms have been established to avoid or mitigate adverse environmental impacts. The delivery of the objectives/tasks is regularly monitored.

An overview of the environmental efficiency of AS Tallinna Vesi is provided in the Environmental Report.

The most significant environmental aspects and impacts of AS Tallinna Vesi are as follows:

Environmental aspect Environmental impact of the aspect Trend of the impact Further actions
Use of heat energy generated from natural gas Heat energy is generated from natural gas, which is non-renewable resource and a fossil fuel. Causes air emissions, CO2 Insulation of buildings, energy savings, use of residual heat
Use of biogas to produce heat  

Heat energy is produced on site from biogas, which is a residue of the sludge digestion process. Reduces ecological footprint and dependence on non-renewable sources of energy

+ Maximise the use of produced biogas
Construction waste Construction waste has low potential of being reused, large quantities of waste damage the soil etc. Wider use of no-dig methods in pipeline reconstruction
Use of electricity CO2 emissions, air pollution, environmental damage, exhaustion of fossil fuels  

Analysis of electricity consumption, introduction of more energy efficient equipment and energy saving modes.

Water extraction Has an impact on energy and chemical consumption and the resulting environment impacts  

Reducing the water leakages and process water consumption, applying of new technologies.

Compliant drinking water supply to consumers Consumer can prefer tap water instead of bottled water, thus reducing the impact from the use of disposable plastic bottles. Impact on population’s health. +  

Constant work in all the stages of water treatment, publishing the information about water quality, maintaining of sanitary protection areas.

Sludge handling  

Large quantities make the sludge handling complicated. If the sludge is not recycled back to the environment, the amount of waste that needs to be handled increases.

Aspect cannot be assessed, further actions awaiting the court decision
Discharge of untreated sewage into the environment Causes pollution, negative impact on marine life and -environment. Impairment of living environment and smell problem.  

Reconstruction of the treatment process, The construction of separate sewerage system in cooperation with Tallinn City Engineering Department, monitoring of systems.