Conference Agenda

As part of Stormwater Poland 2022, we have prepared

4 thematically mixed sessions, divided into 2 conference days and a WaterFolder Day

Thursday, 29 September 2022

Tomasz Grochowski - RetencjaPL
09:00 - 09:10
Early flood warning system for the City of Bonn
Tobias Menzel - OTT Hydromet
09:10 - 09:25
Modeling of natural flood management at InfoWorks ICM
Paul Campbell - Innovyze
09:25 - 09:45
Big data helping water management
Michal Pancewicz - SCALGO
09:45 - 10:05
Intelligent retention in PEHD technology as a response for climate change.
Joanna Szafron - Uponor
10:05 - 10:25
WaterFolder Connect
Prof. Paweł Licznar - RetencjaPL
10:25 - 10:45
How digital twins help storm infrastructure become more resilient: financially and operationally.
Slavco Velickov - Bentley Systems
10:45 - 11:05
Hydrostrateg - the first strategic project dedicated to water
Agnieszka Tokaj-Krzewska - The National Centre for Research and Development
11:05 - 11:20
Summary of the session, questions from participants
Prof. Marek Ruman - University of Silesia
Jarosław Rosa - Biprowodmel
11:20 - 11:30

Session 3

Intelligent Rainwater Infrastructure

In the third session of the conference, as in the previous years, we want to look a bit ahead and discuss the state and prospects of Intelligent Rainwater Infrastructure. We want to convince you that even for smaller towns it is not a pipe dream or futurology. Artificial intelligence, expert systems, data mining does not have to be just a catchphrase in the case of rainwater, and in the very distant future. Such solutions are already used in practice for rainwater in the world and in Poland, bringing specific benefits and savings. As RetencjaPL, we want to demonstrate the results of their use in the WaterFolder Connect project (an innovative online platform for integrated design and modeling of drainage systems), which we are implementing with many Partners. But most importantly, we want to persuade you to be as active as possible in this area, as you may be supported by “Hydrostrateg”  – the financing program announced by the National Center for Research and Development. This is the first such fund dedicated to water in Poland and a great opportunity for development of our entire industry. It is also a great challenge to face the increasing water shortages in our country. Without innovation, without intelligence and without taking care of rainwater, we will not be able to meet this challenge in Polish cities and contribute to ensuring a better future for future generations. So let’s use the opportunity that arises and find “time for rainwater”.

Coffee break
11:30 - 12:10
Storm water handling - experience and solutions
Ingo Mayer - Managing Director of Steinhardt Water Technology Systems
12:10 - 12:30
Trenchless renovation of the Burakowski collector of combined sewage system in Warsaw with the use of pure GRP modules; advantages, challenges, experience of the contractor
Mariusz Iwanejko - BLEJKAN S.A.
12:30 - 12:50
Stormwater management by predictive control of stormwater reservoirs
Frédéric Jordan - Veolia
12:50 - 13:10
GAMRECYLING - Recover the water!
Sebastian Jaśko - GAMON TRUCKS
13:10 - 13:25
IWA Vision of Intelligent Rainwater Infrastructure – The journey to water -wise cities
Suresh Rohilla - International Water Association
13:25 - 13:45
Summary of the session, questions from participants
Prof. Jadwiga Królikowska - Cracow University of Technology
Andrzej Osiński - PZiTS Appraiser
13:45 - 13:55

Session 4.

When looking to the future, implementing new projects, we must not forget that we must increasingly take care of what we have already built or what we are taking over into our operation. There are more and more kilometers of rainwater drainage systems, the number of rainwater and snowmelt water retention and drainage facilities, and all these networks and facilities, without operation and maintenance, quickly age. Hence the need for a separate dedicated block: Maintenance of drainage and retention systems.

Maintenance is not only about financing. During this session, we would like to give the floor again to the operators and their engineers who have experience in restoring the functions of networks and facilities after years of improper use or in the renovation of drainage systems that have long ended their depreciation period. It is worth discussing the risks of exploitation, but also good practices and technical solutions protecting the drainage infrastructure against devastation and premature decapitalization.

13:55 - 14:35
Financing investments in the field of rainwater and green-blue infrastructure
Piotr Czarnocki - Ministry of Climate and Environment
14:35 - 14:55
Discussion panel - Is the safety of drainage systems against climate change possible without small retention and maintenance fees?
Damian Kołakowski - Górnośląsko-Zagłębiowska Metropolia
Katarzyna Zięba - DS LEX
Anna Flaga – Martynek - Kancelaria WKB Wierciński, Kwieciński, Baehr sp. k.
Marek Borkowski - Aquanet S.A.
Stanisław Drzewiecki - MWiK Bydgoszcz
Mariusz Śpiewok - Urząd Miasta Gliwice
Bartosz Rakoczy - Kancelaria Radców Prawnych Bartosz Rakoczy i Krzysztof Bukowski sp.j.
14:55 - 15:55
Summary and end of the conference
Prof. Paweł Licznar - RetencjaPL
15:55 - 16:05

Session 5

Early flood warning system for the City of Bonn

.Abstract: Thunderstorms are not uncommon in the Cologne/Bonn region. In 2010, 2013 and 2016, heavy rain and subsequent flash floods caused millions of euros in damage in the city of Bonn. Up to 100 liters of rain per square meter poured down on individual city districts in just two hours in June 2016. Streams burst their banks, streets were inundated, and cellars, apartments and underground garages were flooded. Some houses even had to be evacuated. The city of Bonn wanted to create more clarity and make storm forecasts more precise on a small scale. In this context, the "Alarmpegel" project of the of the city's civil engineering department has been created. The water level at neuralgic points of the Mehlemer and Godesberger creeks is monitored around the clock and fully automatically. In addition, video cameras are in use at three bridge culverts, so that not only water levels but also images of the situation on site are transmitted to the monitoring center. Precipitation values complement the data. This makes it possible to warn residents in a more targeted manner and at an earlier stage so that they can take final protective measures. The presentation describes the design, installation and operation of the early flood warning system, the city of Bonn has built in cooperation with OTT HydroMet.

Modeling of natural flood management at InfoWorks ICM

A solutions engineer at Innovyze will show you how InfoWorks ICM can be used to manage natural floods. Learn how to quickly and easily portray the current situation in the catchment area to identify the true cause of a flood, and use built-in modeling tools to select natural flood management solutions.

Big data helping water management

In the world of digitalization, we are producing data every day. The task is now to analyze and develop these data to achieve valuable and easily accessible information everywhere, including the water management industry.

SCALGO was founded to bring cutting-edge massive terrain data-processing technology to the market. Having more than 20 years of experience in spatial algorithms research, SCALGO developed the innovative web-based surface water planning platform SCALGO Live -used today by over 15,000 engineers, planners, architects, and other specialists in Europe.

SCALGO Live provides instant access to spatial analyses of entire countries, including Poland. The analyses are based on the national digital terrain model and offer valuable information for effective surface runoff management and intuitive tools to help understand terrain and surface water relations, test mitigation measures or retention solutions and create blue-green infrastructure.

Intelligent retention in PEHD technology as a response for climate change.

The presentation will discuss the subject of the European Green Deal and the Sustainable Development Economy in the context of caring for water resources. Another point of considerations will be multifunctional solutions with their special importance underlined. One of such solutions is intelligent rainwater retention, which is a response to the needs resulting from climate change.

WaterFolder Connect

Two years ago, the idea of ​​creating a digital design platform for the drainage systems was born following the implementation of the Polish Atlas of Rain Intensity PANDa project financed by the National Center for Research and Development. Thanks to the cooperation of many Partners (most of them you can meet at the conference), we managed to create a very useful set of modern design tools, which is not only systematically extended, but also used by an increasing number of users. Today, the number of registered user accounts on the platform exceeds five and a half thousand. The foundation of this tangible progress in the design workshop was the answer to the question of what are the maximum rain rates in Poland? The PAND Atlas basically contains information about the local maximum heights (intensities) of rain with a duration of 5 minutes to 3 days and frequency C of occurrence from 1 to 100 years. Nevertheless, in our dreams, the platform can be much better, and it will soon be much better, because the tools it contains can be supplemented with additional and, more importantly, mutually integrated, so that it is possible to design and even model entire drainage networks on the Internet. We are also convinced that you can learn much more about rains in Poland. You can look for answers: how often do torrential rains appear in various regions of Poland, what are their duration and efficiency, and perhaps most importantly, how do they spread over time, i.e. what do their hyetographs look like? The aforementioned premises were our motivation to undertake the implementation of a new project co-financed by the National Center for Research and Development, POIR.01.01.01-00-0119 / 21 entitled: WaterFolder Connect - an integrated platform for designing and modeling drainage systems. During the presentation, we want to present the results obtained in the already completed first stage of the project. We want to share with you the knowledge that we obtained after isolating and analyzing a collection of nearly 32,000 torrential rains that were registered on a network of 100 rain gauges in Poland over a period of 30 years. We hope that we will be able to convince you that the rains are interesting and the knowledge gained while examining them is very practical!

How digital twins help storm infrastructure become more resilient: financially and operationally.

The EU recovery funds framework has ambitious goals and business outcomes for all EU and Polish water companies managing sewer and storm drainage infrastructure to ensure climate resilience. The presentation features examples of how water utilities including the consulting ecosystem are currently utilizing digital twins and analytic capabilities for asset performance modelling of sewer and storm drainage systems, addressing capacity issues, optimising energy consumption, emergency response to services interruptions, runoff management, and other efficiency-related topics. Real international examples will be presented with the business benefit realised with the use of Bentley OpenFlows technology such as SewerGEMS and SewerSight operational digital twin platform.

Hydrostrateg - the first strategic project dedicated to water

The presentation will concern the discussion, approved by the Ministry of Education and Science in December 2021, of the Government Strategic Program "Innovations for water management and inland navigation" - Hydrostrateg. This program meets the real challenges of water management in Poland. It includes research and development tasks related to flood risk management, water supply to consumers, improvement of water quality and sustainable spatial planning of water and water areas. The main goal of the Hydrostrateg program is to implement new solutions improving the efficiency of water use and management in Poland. This objective includes three specific objectives in the form of: increasing water retention and improving water quality (in accordance with the principles of sustainable water and sewage management), implementing new methods of monitoring and assessing the condition of water ecosystems, increasing the use of waterways for inland navigation. The listed goals of the program are planned for implementation in three research areas: • water in the environment - biodiversity / bioproductivity; • water in the city; • inland sailing. Due to the specificity of the Stormwater Poland conference, the presentation will discuss the water area in the city in more detail and the resulting development prospects for the development of innovative solutions in Poland regarding the development of retention technologies, infiltration and use of rainwater, as well as reducing the environmental nuisance of the functioning of sewage systems

Storm water handling - experience and solutions

My presentation addresses the issues around the application of stormwater handling and treatment systems. Concrete projects that have been implemented are presented and planning tips are given. The challenges with regard to the retention of pollutants and their impact on water bodies are introduced, and the legal framework and guidelines in Germany are presented.

Trenchless renovation of the Burakowski collector of combined sewage system in Warsaw with the use of pure GRP modules; advantages, challenges, experience of the contractor

During the speech, the trenchless renovation process of the largest gravity collector in Poland (over 3 meters in size) discharging sewage from the left-bank part of Warsaw with the use of cGRP modules will be shown in a very vivid and vivid manner. Details of the production technology, materials used, as well as challenges and difficulties that the contractor overcame during the implementation of the task in 2018-2021 will be presented in detail. A film from the implementation and an animation showing the advantages of the materials used will enrich the story of this special project, the investor of which was the Miejskie Przedsiębiorstwo Wodociągów i Kanalizacji in the capital city of Warsaw S.A. It's really worth seeing.

Stormwater management by predictive control of stormwater reservoirs

Discharges of rainwater and wastewater into the receiving environment are a central problem in the management of combined sewer systems. In order to improve the environmental impact of the combined sewer system in St-Chamond, France, Veolia operates the network through real-time control of the retention basins (RTC) and the WWTP. This dynamic management has two main objectives: to automate the early activation of the stormwater treatment system at the WWTP, and to optimize the retention of the Terrenoire stormwater basin in order to minimize the total sotrm overflows. The activation of the stormwater system of the WWTP could be automated, thanks to inflow forecasts using radar nowcasting (INCA from MeteoSwiss) and rainfall-runoff simulation. Using these forecasts, the developed interlocking algorithm performs, with a lead time of 70 minutes, a detection rate higher than 50% and a false alarm rate lower than 10%. Flow management in the network was optimized in two steps. An automated valve set point of the Terrenoire BO was already applied before this project. However, it did not take into account either the flow forecasts nor the information downstream of the structure. The algorithm developed now takes into account not only the flow forecasts at the basin, but also at the downstream storm overflows and at the WWTP, allowing to maximize the filling rate of the downstream pipes while limiting the discharges at the RB and the WWTP. In this way, the hydraulic capacity of the downstream pipes is better used, and the RB, which is called upon later, sees its discharges greatly reduced. This new algorithm allows an average reduction of 29% of the discharge releases on the whole network-WWTP system.

GAMRECYLING - Recover the water!

Water is a limited resource without which life on Earth is impossible. Climate change and the accompanying more extreme weather make water supply more unpredictable. Responsible use of water is essential to ensure a future for future generations. The company GAMON TRUCKS, as a manufacturer of vehicles for cleaning sewage and transporting liquid waste, decided to prepare a proposal that fits perfectly into the mission of saving water resources. GAMRECYCLING - is a special vehicle equipped with a multi-stage water recycling system. Its task is to separate all impurities from the water drawn from the sewer. So that the withdrawn water can be cleaned and reused to clean the sewer.

IWA Vision of Intelligent Rainwater Infrastructure – The journey to water -wise cities

The great water challenges of our time, namely climate change, population growth and increasing urbanization, and ageing and overly stressed infrastructure, inflict significant pressure on water networks. . In fact, these challenges and their increasing complexity necessitate a paradigm shift to the next generation of water systems. In such an environment, water utilities need to continue to deliver essential services including safe and secure drinking water, stormwater management and wastewater management. Addressing these ongoing and growing challenges requires a transformation to optimize its processes and operational efficiency. In this presentation effort will be to share IWA’s vision to facilitate the journey of the water industry towards digital uptake and integration of innovative solutions like rainwater harvesting into water services. IWA’s ‘Digital Water Programme’ builds on the cities of future and water wise cities agenda to initiate the dialogue aimed at developing a mechanism to learn new ideas to build on their own experiences in applying digital solutions, and a platform to share experiences on their digital transformation. The development of new systems is to enable informed decisions in an increasingly changing, complex and uncertain world aimed at building resilient and inclusive water – sanitation systems in the cities of future.

Discussion panel - Is the safety of drainage systems against climate change possible without small retention and maintenance fees?

The scope of the debate:

- the validity of introducing charges for rainwater

- discussion of the problems that arose when introducing fees

- discussion of the value of introducing small retention support programs

Damian Kołakowski

Górnośląsko-Zagłębiowska Metropolia

Damian Kołakowski, Deputy Director of the Infrastructure and Environment Department in the Metropolis GZM, for 18 years professionally associated with local government units. A graduate of various degrees and types of studies at the University of Economics in Katowice, University of Silesia in Katowice, Upper Silesian School of Entrepreneurship in Chorzow, Silesian University of Technology in Gliwice, University of Business in Dabrowa Gornicza. The practitioner, as a long-term employee and then the Head of the Municipal Economy Department of the Siemianowice Slaskie City Hall, was responsible, among others, for the implementation of the municipal waste management system or the development of blue and green infrastructure in the City.

Katarzyna Zięba


She graduated from law studies at the University of Gdańsk and studies at the Faculty of Management of the University of Gdańsk, specialization: Investments and Real Estate. After completing the legal adviser apprenticeship and passing the professional exam, she was entered on the list of legal advisers kept by the District Chamber of Legal Advisers in Gdańsk. In his professional work, he combines the ability to apply law with a business approach to the analyzed projects.

Anna Flaga – Martynek

Kancelaria WKB Wierciński, Kwieciński, Baehr sp. k.

She co-manages a team of infrastructure projects. She is a specialist in the field of investments in the water and sewage sector. Her main activity is the management of complex infrastructure projects; primarily supports enterprises operating in strategic sectors of the economy, including those investing in water management and drainage systems.

She is the author of several publications, recommended as an expert in the field of infrastructure, construction and project management by prestigious international publications such as Next Generation Partner by The Legal 500 EMEA (Construction section), as well as by IFRL1000 as a “highly regarded layer” in the field of Product Development : Infrastructure Area.

Marek Borkowski

Aquanet S.A.

A graduate of the Poznań University of Technology in the field of Environmental Engineering. From the beginning of his career, he has been associated with the water supply industry. In 2021, he was reappointed to the Management Board of Aquanet SA as Vice President – Development Director. He is also the author of several articles in trade magazines and the co-author of the book “Zarządzanie Przedsiębiorstwo Wodociągowego” edited by Dr. Paweł Chudziński.

Stanisław Drzewiecki

MWiK Bydgoszcz

A graduate of the Poznań University of Technology at the Faculty of Civil Engineering. He connected his professional career with the water and sewage industry – starting work in the Provincial Water and Sewerage Company in Konin as the manager of the Operation Department. In 1997, he won the competition for the position of the Director of the Municipal Construction Design Office in Bydgoszcz. In September 1999, he was appointed to the Management Board of MWiK, where he is the President of the Management Board to this day. In the years 2013-2016, he managed the work related to the development of a comprehensive project “Construction and reconstruction of the rainwater sewage system and adaptation of the rainwater sewage system to climate changes in Bydgoszcz”. Currently – the project is being implemented. 90 km of the rainwater drainage system was modernized. There are 71 storage reservoirs under construction.

Mariusz Śpiewok

Urząd Miasta Gliwice

Since 2020, he has been the First Deputy Mayor of the City of Gliwice. Responsible, inter alia, for the implementation of tasks in the field of strategic planning and city development, municipal investments and renovations, municipal services and local transport, obtaining funds from foreign sources of financing, including the European Union, public procurement, water management, electromobility and fuels alternative.

Bartosz Rakoczy

Kancelaria Radców Prawnych Bartosz Rakoczy i Krzysztof Bukowski sp.j.

Habilitated professor in law, head of the Department of Environmental Law at the Nicolaus Copernicus University in Toruń, professor of the UKW in Bydgoszcz, attorney-at-law, partner in the office of legal counsels, legal advisor to the Polish Waterworks Chamber of Commerce, attorney at the Gniezno Metropolitan Tribunal, author of many publications in the field of environmental law and law civil law, canon law.

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