Rijnland Water Authority Optimizing water quantity and quality with RTC-tools 2

Rijnland Water Authority Optimizing water quantity and quality with RTC-tools 2 From Morse Code & Expert Judgement to Expert System & RTC-tools 2 René van der Zwan Delft-FEWS - International User Days

Presentation Rijnland Water Authority Introduction Mini lecture water management History of Automated Control Actual project with RTC-tools 2 and FEWS

The Hague Amsterdam

The territory of Rijnland 1.175 km 2 1.300.000 inhabitants 523.500 households 30 municipalities / 2 provinces 90% below sea level Annual Precipitation: 850 mm (7%) Annual Evaporation: 550 mm (65%) Storage basin (4,5% open water) 202 Polders (5,5% open water)

Tasks of Rijnland Flood defence (Safety) Water Quantity (Enough Water) Water Quality (Healthy water) Waste Water (Treatment plants) Groundwater (since 2010) Annual Budget 190,000,000

Presentation Rijnland Water Authority Introduction Mini lecture water management History of Automated Control Actual project with RTC-tools 2 and FEWS

Cross Section

Water management in wet periods Water from polders pumped to storage basin (main water distribution system) Surplus water from storage basin pumped towards the sea Saline ground water Sea Dunes Main Pumping Station Polder Pumping Station Storage basin Polders and ditches Storage basin

Water management in dry periods Water distribution towards polders from branch of river Rhine 40 till 100 Million m 3 water in the summer season Saline ground water Sea Dunes Main Pumping Station Polder Pumping Station Storage basin Polders and ditches Storage basin

Water Quantity / Quality Spaarndam 32 m 3 /s Halfweg 33 m 3 /s Pumping stations: 4 large storage basin pumping stations Polders: 202 polders with 353 polder pumping stations Katwijk 94 m 3 /s Water level areas (peilgebieden): 1252 total areas with different levels 791 regulated areas Total discharge: 199 m 3 /s 17.2 x10 6 m 3 /day 15.9 mm/day Gouda 40 m 3 /s

average sea level Water management of Storage Basin: water levels and margins NAP -0,12 m Maximum height of dykes/levees/embankments NAP -0,37 m Stop polder pumping stations NAP -0,52 m Emergency plan in use NAP -0,62 m Average level Operational margin 6-11-2017

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 water level in meters NAP 000 Water levels in center of Rijnland 1900-2016 000 000 000-001 -001-001 -001-001 -001-001 minimum water level average water level maximum water level

Presentation Rijnland Water Authority Introduction Mini lecture water management History of Automated Control Actual project with RTC-tools 2 and FEWS

History of automated control in Rijnland 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 Year Project Version Storage Basin Polders < 1990 Morse Code - Manual Control Manual Control 1991 1 st pc - idem idem 1995 ABR 1.0 Advice for pumping stations, based on level prediction idem 2005 Merger - idem idem 2006 BOSBO 2.0 Automated Control of pumping stations + Preparation remote control polders idem 2009 Integration Polders 2.1 Automated Control of pumping stations Remote Control 2014 New hardware 2.2 idem idem 2015 Start new project BOSBO 3.0 Automated control with optimization for extra parameters: water quality (salinity), wind, energy, costs Automated control of 5 large polders

History of automated control in Rijnland 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 Year Project Version Storage Basin Polders < 1990 Morse Code - Manual Control Manual Control 1991 1 st pc - idem idem 1995 ABR 1.0 Advice for pumping stations, based on level prediction idem 2005 Merger - idem idem 2006 BOSBO 2.0 Automated Control of pumping stations + Preparation remote control polders idem 2009 Integration Polders 2.1 Automated Control of pumping stations Remote Control 2014 New hardware 2.2 idem idem 2015 Start new project BOSBO 3.0 2022 Start new project BOSBO 4.0 Automated control with optimization for extra parameters: water quality (salinity), wind, energy, costs After market analysis: design and realisation of new communication- and decision support system for total water system Automated control of 5 large polders

Presentation Rijnland Water Authority Introduction Mini lecture water management History of Automated Control New DSS with RTC-tools 2 and FEWS

New DSS: Path Definition of new functionality (2015) Water level managers Policy advisors IT advisors External Advisors (Deltares and Hydrologic) Functional Design with demands on (2016) Modular design Optimization on multiple objectives GIS-connection, calculate scenarios Spatial grid data (precipitation / evapotranspiration) Cooperation with Other water authorities for telemetry part Deltares in a TKI (Top Consortium Knowledge and Innovation) subsidy and research project with implementation of RTC-tools 2 European tendering procedure (2017) Contract for realisation with Nelen and Schuurmans

New DSS: Actual Configuration Bosbo 2.0 CAW Integral Controller Calculations CAW Telemetry Measurements Operation Lizard-Fews RR-CF model Calculation model storage basin and polders SPOC WIS External sources Weather services External measurements Hydronet Polderpumping Poldergemalen Polder- stations /stuwen gemalen /stuwen Large SB pumping Boezemgemalen stations ArcGIS server

New DSS: New Configuration Bosbo 3.0 Integral controller RR-model Calculation model Storage Basin Load RTC-2 model Calculation model SB - Pumping stations Fews (modular) User enviroment Data-integration Calculations CAW Telemetry Measurements Operation Lizard-Fews RR-CF model Calculation model storage basin and polders SPOC WIS External sources Weather services External measurements Hydronet (spatial grid data) Polderpumping Poldergemalen Polder- stations /stuwen gemalen /stuwen Large SB pumping Boezemgemalen stations ArcGIS server

New DSS: Comparison old with new system Actual DSS Pumping station control automated, based on historic defined rules New Version with RTC-tools 2 Better and more extensive control: Pumping station control automated, based on multiple control goals Water security (water level) prevails The goals are: Flushing the system based on water quality goals for different customers Minimization of wind effects Energy efficient control of pumping stations Anticipatory water level management to prevent damage caused by flooding Use of emergency storage areas / Stop of pumping stations / Compartmentation For storage basin and also for 5 polder systems

New DSS: Software elements and system Sobek RR-model Rijnland RTC-tools 2 model Deltares FEWS Nelen & Schuurmans Large system with several environments Test Acceptation Production Archive Fews WIS CAW - Telemetry Complete redundancy with emergency system in data centre Project with sprint (software development) Close interaction with the future users

New DSS: Example Sept. 15 2017 (200 mm in 20 days)

New DSS: Provisional operator screens

New DSS: Conclusions Defining new functionality in early stage is big win during realisation Involvement of future users during whole process is key success factor Realisation with defined sprints makes realisation clear Determine user wishes as must haves and should haves to go-live RTC-tools 2 gives possibility to optimize on multiple goals Challenge is to make the solution path insightful and understandable to the end-user Expert judgement is replaced by expert systems Experts with knowledge and understanding of water level management/ models/optimization modules remain necessary Small margins, many goals: Challenge to be solved with RTC-tools 2

René van der Zwan Hoogheemraadschap van Rijnland rene.zwan@rijnland.net +31 71 306 3351