The connection between surface water and groundwater is a crucial part in the water cycle. Urbanization presents challenges to manage water sustainably, especially balancing the interactions between surface water and groundwater. To comprehend the groundwater flow and contaminant movement better, it is vital to examine the different processes of surface and subsurface flow that shape these interactions. Conventional urban growth often disrupts natural water cycles, leading to more floods, water scarcity, and decreased water quality. Consequently, there is a growing interest in incorporating ecotechnological solutions that imitate natural processes for enhancing urban water resilience. This chapter delves into how surface water and groundwater dynamics can be integrated into urban ecotechnology strategies. Successful management of these interactions requires a comprehensive approach that accounts for hydrogeological conditions, land-use patterns, and urban planning principles. Utilizing advanced modeling methods and monitoring systems are crucial for evaluating the effects of ecotechnologies on water quantity and quality. By promoting the synchronization of surface water and groundwater dynamics, urban ecotechnology not only boosts water resource sustainability but also aids in improving ecosystem health and urban livability. Ongoing research and innovation in this realm are vital for devising strong solutions to tackle the intricate challenges posed by urbanization, fostering the environmental stewardship and enhancing community well-being.