Common Ground: Hutt Public Art Festival is calling for samples from Hutt Valley residents of their local groundwater! Citizens are invited to get its quality tested and contribute to a new art installation ‘ Citizens’ Water Map Lab ‘ by visual artist Julian Priest. Hutt Valley residents are invited to bring in a plastic milk bottle filled with groundwater from their local stream, river, well, bore or even puddle, to the front desk of The Dowse Art Museum from Monday 30 January.