There will be a COASTAR project in Kwintsheul, at the Hooghe Beer, in the greenhouse horticultural area Broekpolder. This is a pilot project in which excess fresh rainwater will be stored underground for use as irrigation water in greenhouses during dry periods.
The principle ensures that less water is taken from underground than with the current method, reverse osmosis. In reverse osmosis, suspended solids, organic matter, pathogens, viruses, and bacteria are filtered out of the water through a thin membrane. COASTAR is predicted to reduce subsoil salinization and subsidence. Reason for the Westland Municipal Executive to agree to the start of the pilot, according to college decisions on week 26.
The province of South Holland and the Delfland Water Board also still have to agree before the project actually starts.
More about COASTER can be found on a dedicated project website here.