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AS Tallinna Vesi’s operational performance in the 2nd quarter of 2018

Teade

Compared to last year´s 2(nd) quarter, 2018 saw improvements in several
operational indicators of AS Tallinna Vesi. Consistently high standards were
achieved regarding the parameters reflecting the quality of both drinking water
and treated effluent as well as customer service.

Reliable water service

The  quality of drinking water remained excellent in the 2(nd) quarter of 2018.
Water   samples   taken  from  customers'  taps  were  100% compliant  with  all
requirements.  The professionalism of specialists managing the treatment process
at  Ülemiste Water Treatment Plant, as well  as renewal and maintenance of water
network,  are instrumental in supplying high  quality water to our customers. We
are  also pleased to  see that the  average water disruption  time to individual
properties  remained at  a good  level, being  3 hours 17 minutes  in the 2(nd)
quarter of 2018.

We  continue  to  make  targeted  capital  investments  to  ensure the continued
reliability  of the  infrastructure. In  the 2(nd) quarter  of 2018, we finished
reconstruction works of the water pipes and sewers on Tondi street and continued
with the works on Gonsiori street in collaboration with the City of Tallinn.

The level of leakages in the water networks continues to be low. Water losses at
13.00% showed a slight increase in the 2(nd) quarter of 2018 compared to 12.94%
for the same period prvious year. This is still an excellent result.

High service standards

Besides  outstanding operational  performance, the  Company has  set itself high
standards to  provide  first-class  customer  service.  We  have  set  clear and
challenging  targets, and give promises to our  customers, in terms of the speed
of our response and problem-solving. In the 2nd quarter we reviewed our promises
to  customers.  Our  promises  are  to  deliver  high-quality  water,  keep  the
environment  safe, respond  to our  customers´ requests  quickly, be accurate in
billing  and keep to our  agreements. Should we fail  to keep those promises, we
proactively pay compensation to the customer.

In  the first six months of 2018, we failed to keep our promises to 31 customers
in  total. In one case we were not  able to open the water after emergency works
at the time we had promised.

A research agency Kantar Emor conducts regular customer satisfaction surveys for
AS  Tallinna Vesi. In the 2(nd) quarter, the customer satisfaction index reached
4.1 points on a 5-point scale, which is once again an excellent result.

We care for the environment

The  issues with  the sewerage  network have  reduced, and  the number  of sewer
blockages  dropped 25% from 393 in the first six months of 2017 to 295 in 2018.
AS  Tallinna  Vesi  continues  to  improve  public awareness about sewer-related
issues to reduce the volume of domestic waste ending up in the sewerage network.

In  the 2(nd) quarter  of 2018, the  treated effluent  at Paljassaare Wastewater
Treatment Plant was compliant with all stipulated quality requirements. With the
purpose  to assess  the treatment  efficiency and  the quality of wastewater, we
monitor  pollutants  in  both  the  incoming  wastewater  and  treated effluent.
Wastewater  laboratory analyses the  samples taken from  different stages of the
wastewater  treatment process, and the information received thereby allows us to
further improve the treatment efficiency and effluent quality.


 Indicator                     Unit 2018 6 months 2017 6 months 2018 Q2 2017 Q2
-------------------------------------------------------------------------------
 Drinking water
-------------------------------------------------------------------------------
 Compliance of water quality
 at the customers' tap          %          99,93%        99,93% 100,00%  99,87%

 Losses in the water
 distribution network           %          14,09%        13,33%  13,00%  12,94%

 Average duration of water
 interruptions per property     h            3,28          3,25    3,58    3,42

 Wastewater
-------------------------------------------------------------------------------
 Sewer blockages                No            295           393     139     198

 Sewer bursts                   No             50            72      25      33

 Wastewater treatment
 compliance with environmental
 standards                      %          100,0%        100,0% 100,00% 100,00%

 Customer Service
-------------------------------------------------------------------------------
 Written complaints             No             69            17      48       8

 Customer contacts regarding
 water quality                  No            101            70      87      46

 Customer contacts regarding
 water pressure                 No            183           146     146     108

 Customer contacts regarding
 blockages and storm water
 runoff                         No            516           539     266     270

 Responding written customer
 contacts within at least 2
 work days                      %         100,00%       100,00% 100,00%  99,97%

 Failed promises                No             31             3      28       0

 Notification of unplanned
 water interruptions at least
 1 h before the interruption    %           94,4%       100,00%  92,50% 100,00%

Eliis Vennik
Head of Communications
Tallinna Vesi
(+372) 626 2275
[email protected] (https://www.globenewswire.com/Tracker?data=-
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