AS Tallinna Vesi achieved excellent operational results again in the first six
months of 2021. The company reconstructed 4,200 m of water pipes and 4,100 m of
sewers during the first half of 2021. The reconstruction of mechanical treatment
stage at the wastewater treatment plant continued to deliver the target of
further enhancing the quality and resilience of wastewater treatment process.
Investments into the water network
The quality of tap water was very good in the second quarter of 2021 - 99.7%
compliant with the requirements. Tap water met the strict standards for drinking
water quality also during the first half of the year (99.87%). Hot weather in
summer can be a challenge in terms of ensuring water quality in the water
network. To make sure that our consumers have high-quality drinking water at
their taps at all times, the company carries out proactive maintenance of the
water network, such as additional flushing of pipes as necessary.
One of the objectives of the company is to notify customers of interruptions to
water supply as early as possible. During the first six months of 2021, the
customers received notices of unplanned interruptions at last 1 hour before in
98.9% of cases. To minimise the effect of water interruptions on customers, the
company is planning to install at least 20 additional valves in the water
network this year. During the second quarter of 2021, the average water
disruption time was 2 hours and 51 minutes which was less than in the same
period last year.
The leakage rate for the period until the end of June was 15.01%, being higher
than for the same period of 2020.
The company had reconstructed 4,200 m of water pipes and 4,100 m of sewers by
the end of the second quarter of 2021. Reconstruction works were done on Poska
and Roosikrantsi Streets and on Kadaka Road. Capital investments into the
network ensure uninterrupted water and wastewater service and reliability of
water supply to consumers also in the future.
Reliable wastewater service
Sewer reconstruction is contributing to the gradual reduction in the number of
sewer collapses year on year. During the first half of 2021, we had 5 sewer
collapses less than in the same period last year. Slight increase in the number
of sewer blockages in the second quarter and in the first six months of 2021 was
related to the dry and warm weather.
In the second quarter and the first half of 2021, the final treated effluent at
Paljassaare Wastewater Treatment Plant was fully compliant with all quality
requirements. With the purpose of assessing the treatment efficiency and the
quality of wastewater, we continuously monitor for pollutants, in both the
incoming wastewater and final treated effluent. Wastewater laboratory analyses
the samples taken from different stages of the wastewater treatment process.
The major project of reconstructing the mechanical treatment stage at
Paljassaare Wastewater Treatment Plant continued, with the construction works
scheduled to be completed by the end of July. Testing and optimisation of the
new system will commence in August. Completion of this project will further
enhance the quality and resilience of wastewater treatment process.
Availability of tap water
Providing customers and consumers with high-quality and reliable water and
wastewater services at all times, whilst maintaining very high standards in
customer service is crucial for Tallinna Vesi. To maintain customer
satisfaction, we have set ourselves clear and forward-looking targets. We have
seen a gradual decline in the number of customer complaints year on year, which
is a positive trend and serves as an indicator of stable improvement in the
quality of service.
It is important for Tallinna Vesi that the customers receive the necessary
information or answers to their questions as quickly as possible. The company
measures the speed of response, and has set a target to respond to all less
complex written requests within two working days. The company responded to
written requests within the term in 99.2% of cases in the first half of 2021.
To further enhance the availability of tap water in summer on the city streets,
the company has opened 9 public water taps providing Tallinners with drinking
water of controlled quality. Public water taps are on Viru Street, Harju Street,
in Police Park, the cycle and pedestrian track on Järvevana Road, Kadriorg Park,
on Kalaranna Road, in Danish King's Garden, on Algi Street near Löwenruh Park,
and on Sepa Street.
Drinking enough water is extremely important with hot weather, which is why the
company encourages people to ask for tap water when eating out and the
restaurants to offer it to their customers. To this end, Tallinna Vesi, along
with the City of Tallinn and the Estonian Hotel and Restaurant Association,
started the campaign "Let's offer tap water".
OPERATIONAL INDICATORS FOR THE FIRST SIX MONTHS OF 2021
+---------------------------------------------+----+--------+--------+----+----+
| | | | | | |
| | | | | | |
| | |2021 |2020 |2021|2020|
|Indicator |Unit|6 months|6 months|Q2 |Q2 |
+---------------------------------------------+----+--------+--------+----+----+
|Drinking water | | | | | |
+---------------------------------------------+----+--------+--------+----+----+
|Compliance of water quality at the customers'| | | | | |
|tap |% |99,87 |100 |99,7|100 |
+---------------------------------------------+----+--------+--------+----+----+
|Water loss in the water distribution network |% |15,01 |13,91 |14,6|12,7|
+---------------------------------------------+----+--------+--------+----+----+
|Average duration of water interruptions per | | | | | |
|property in hours |h |3,10 |3,05 |2,85|3,18|
+---------------------------------------------+----+--------+--------+----+----+
|Wastewater | | | | | |
+---------------------------------------------+----+--------+--------+----+----+
|Number of sewer blockages |No |294 |227 |151 |103 |
+---------------------------------------------+----+--------+--------+----+----+
|Number of sewer collapses |No |36 |41 |17 |14 |
+---------------------------------------------+----+--------+--------+----+----+
|Wastewater treatment compliance with | | | | | |
|environmental standards |% |100 |100 |100 |100 |
+---------------------------------------------+----+--------+--------+----+----+
|Customer Service | | | | | |
+---------------------------------------------+----+--------+--------+----+----+
|Number of complaints |No |17 |28 |9 |12 |
+---------------------------------------------+----+--------+--------+----+----+
|Number of customer contacts regarding water| | | | | |
|quality |No |72 |164 |30 |101 |
+---------------------------------------------+----+--------+--------+----+----+
|Number of customer contacts regarding water | | | | | |
|pressure |No |137 |149 |86 |87 |
+---------------------------------------------+----+--------+--------+----+----+
|Number of customer contacts regarding | | | | | |
|blockages and leading off stormwater |No |495 |473 |251 |207 |
+---------------------------------------------+----+--------+--------+----+----+
|Responding to written customer contacts | | | | | |
|within at least 2 working days |% |99,2 |100 |98,7|100 |
+---------------------------------------------+----+--------+--------+----+----+
|Number of cases of failed promises |No |1 |0 |0 |0 |
+---------------------------------------------+----+--------+--------+----+----+
|Notification of unplanned water interruptions| | | | | |
|at least 1h before the interruption |% |98,9 |99,2 |98,3|99 |
+---------------------------------------------+----+--------+--------+----+----+
Laura Korjus
Head of Communication
AS Tallinna Vesi
(+372) 626 2271
laura.korjus@tvesi.ee
|