2017-09-13 WATER SAVING CHALLENGE Field Study 4: Ithaka Figure 1. View from Odysseus’ home towards Afales Bay on Northern Ithaka 1 (25) WATER SAVING CHALLENGE Christian Pleijel
[email protected] Tel +358-457-342 88 25 2017-09-13 Content 1 Summary 2 2 Introduction 3 The assignment The client Study objects The three levels of an island Methodology 3 The water of the island 6 Location Geology Hydrology and climate Vegetation 4 The water of the islanders 9 Human pressure Virtual distance Water consumption 5 The water of the community 14 Governance Water procurement Wastewater Water quality Cost and taxes Future plans 6 Water saving 22 Benchmark #1 Benchmark #2 Benchmark #3 7 References 24 2 (25) WATER SAVING CHALLENGE Christian Pleijel
[email protected] Tel +358-457-342 88 25 FIELD STUDY: ITHAKA 1 Summary Ithaka is a 96 km2 island with a resident population of 3,100. Technically speaking, recal- culating the impact of summer residents and visitors, the human pressure on the island is equivalent to 6,182 all-year inhabitants. The demand for water can be estimated to 247 million litres/year, of which is seems the islanders use of rainwater meets one third of the demand. The municipality really has some creative ways to save water, mainly a brilliant back- wards billing system and a flat rate policy for green hotels (well defined). The islanders are a role model for any island on how to save and use rainwater in their households. From a water saving point of view, Ithaka should continue seaking for leaks and change some of the older ACC mains (Vathi), and get more hotels to become green.