25th Salt Water Intrusion Meeting, 17- - L. Dzierzbicka- 1, B. Szymczycha2, D. Dybowski1, M. Janecki1, A. Nowicki1, 2, H. Obarska-Pempkowiak3, P. Zima3, S. Pietrzak4, G. Pazikowska-Sapota5, E. Wojciechowska3, B. Jaworska-Szulc3, A. Szymkiewicz3, G. Dembska5, M.Wichorowski6, 7 and T.Puszkarczuk8 1Physical Oceanography Department, Institute of Oce Warszawy 55, 81-712 Sopot, Poland 2Marine Chemistry and Biochemistry Department, Institute of Oceanology PAS, -712 Sopot, Poland 3Faculty of Civil and Environmental Engineering, University of Technology, G. Narutowicza 11/12, 80- 4Department of Water Quality, Institute of Technology and Life Sciences, al. Hrabska 3, Falenty, 05-090 Raszyn, Poland 5 80- 6 -712 Sopot, Poland 7Academic Computer Centre in Gdansk, G. Narutowicza 11/12, 80- 8Municipality of Puck, 10 Lutego 29, 84 100 Puck, Poland ABSTRACT WaterPUCK Service is constructed as part of the project with the same name "WaterPUCK". WaterPUCK Service is focused on determination of the current and future environmental status of the surface water and groundwater located in the Puck District (Poland) and its impact on the Bay of Puck environment (the southern Baltic Sea). Knowledge related to land-use management impacts on the Baltic Sea coastal ecosystem is limited. Therefore, only the innovative approach integrated with research, such as WaterPUCK, will provide accurate solutions and methods for proper environment management and will enable understanding and prediction of the impacts of land-use in the Baltic Sea region. WaterPUCK method will enable calculation of the sufficient amount of fertilizers, investigation nutrients and pesticides sources and model: the fate and distribution of nutrients and pesticides in the surface water and groundwater; loads of pollution to surface water and groundwater; fluxes of nutrients via submarine groundwater discharge to the Baltic Sea coastal environment; the processes and mechanisms influencing the persistence of nutrients in the environment, and predict the changes in land use and climate change influence on the Bay of Puck ecosystem. Major goal of WaterPUCK is to foster improvement of natural environment as well as development of regional and national economy. This work is supported by the National Centre for Research and Development within the BIOSTRATEG III program ("WaterPUCK" Project No. BIOSTRATEG3/343927/3/NCBR/2017). 76 25th Salt Water Intrusion Meeting, 17- INTRODUCTION The Puck District together with the Bay of Puck (Figure 1) is an example of region that sustainable growth and management is a challenging task due to its complex structure. Puck District is one of the largest municipalities in Pomeranian Voivodeship situated in the northern part of Poland, at the southern coast of the Baltic Sea. The District has numerous watercourses and rivers, such Puck District is agriculture area with dynamically growing tourism (mainly due to water sports and beautiful beaches) and agro-tourism sector. The main source of Puck District inhabitants incomes come from agriculture, fishery and tourism. Figure 1. Map of the Puck District and the Buy of Puck. METHODS Solutions to water access, land degradation, nutrient management and ecosystem services have to be developed in consideration of what influences the environment and communities across landscapes, not just what works influences the farm. Therefore, the main result of the both improving the best available models and combining them with new models (Figure 2). WaterPUCK will be developed basing on SWAT (Soil and Water Assessment Tool) (Neitsh et al., 2002; 2005, Conan et al., 2003; Brzozowski et al., 2011; Gassman et al., 2014,Taylor et al., 2016; Zima 2014), groundwater flow model (based on Modflow) (Jaworska-Szulc, 2009), 3D EcoPuckBay ecohydrodynamic model of the Bay of Puck (based on the POP code) (Dzierzbicka- "CalcGosPuck"(Pietrzak, 2013). 77 25th Salt Water Intrusion Meeting, 17- Figure 2. The scheme of water and contaminant fluxes covered in WaterPUCK. RESULTS The WaterPUCK method will enable users to calculate the sufficient amount of fertilisers and investigate nutrient and pesticide sources. It will model the fate and distribution of nutrients and pesticides in the surface water and groundwater, nutrient flux via submarine groundwater discharge (SGD) to the Baltic Sea coastal environment and the processes and mechanisms influencing the persistence of nutrients in the environment. In addition, it will also enable the prediction of how changes in land use and climate change influence the Bay of Puck ecosystem. DISCUSSION AND CONCLUSIONS The social and economic perspective of WaterPUCK aims to increase the environmental quality of the Puck Bay ecosystems. The growing pressure of agriculture on the environment increases costs of maintaining biodiversity of the Baltic Sea and mitigation of eutrophic processes. In addition, the tourist attractiveness of the Baltic Sea decreases and the amount and variety of species of fish caught, give additional cost to coastal regions and municipalities. Therefore proposed solution and improvement is desired by both national and international communities. ACKNOWLEDGEMENTS This work is supported by t the National Centre for Research and Development within the BIOSTRATEG III program No. BIOSTRATEG3/343927/3/NCBR/2017) 78 25th Salt Water Intrusion Meeting, 17- REFERENCES 2011. Application of SWAT model to small agricultural catchment in Poland. Journal of Water and Land Development 15:157 166. Conan, C, F. Bouraoui, N. Turpin, G. de Marsily, and G. Bidoglio. 2003. Modeling flow and nitrate fate at catchment scale in Brittany (France). Journal of Environmental Quality 32:2026 2032. Dzierzbicka- operational ecohydrodynamic model (3D CEMBS) - the hydrodynamic part. Oceanologia 55: 519 541. Dzierzbicka- 2013. Activation of the operational ecohydrodynamic model (3D CEMBS) - the ecosystem module. Oceanologia 55:543 572. Gassman, P.W., A.M. Sadeghi, and R. Srinivasan. 2014. Applications of the SWAT Model Special Section: Overview and Insights. Journal of Environmental Quality 43, no. 1:1-8. Jaworska-Szulc, B. 2009. Groundwater flow modelling of multi-aquifer systems for regional resources evaluation: The Gdansk hydrogeological system, Poland. Hydrogeology Journal 17: 1521 1542. Neitsch, S.L., J.G. Arnold, J.R. Kiniry, J.R. Williams, and KW. King. 2002. Soil and Water Assessment Tool Theoretical Documentation. Texas Version 2000. GSWRL Report 02-01, BRC Report 02-05, TR-191. College Station Tex.: Water Resour Manage. Neitsch, S.L., J.G. Arnold, J.R. Kiniry, and J.R. Williams. 2005. Soil and Water Assessment Tool: Theoretical documentation. version 2005. Temple, Tex.: USDA-ARS Grassland. Soil and Water Research Lab. ogy and Life Sciences, Falenty, Poland. ISBN 978-83-62416-67-7 (in Polish) Taylor, S.D, Y. He, and KM. Hiscock. 2016. Modelling the impacts of agricultural management practices on river water quality in Eastern England. Journal of Environmental Management 80: 147 163. Zima, P. 2014. Numerical Simulations and Tracer Studies as a Tool to Support Water Circulation Modeling in Breeding Reservoirs. Archives of Hydro-Engineering and Environmental Mechanics 61, no.3-4: 217-229. Contact Information: Lidia Dzierzbicka- , Physical Oceanography Department, Institute -712 Sopot, Poland, Phone: (+48 58) 731 19 15), Fax: (+48 58) 551 21 30, Email: [email protected] 79 .