The Cressy Longford Irrigation Scheme (CLIS) provides over 17,000 megalitres  every year via over 150 Kms of channels to the farming communities surrounding the Cressy and Longford townships.

Since its commissioning in 1971 CLIS has contributed greatly to the broader agricultural and economic development of the Northern Midlands area. The plentiful and reliable supply of water supports the diverse farming operations that have flourished in the area including dairy, cropping and grazing operations.    

Water is sourced from the Central Highlands Great Lake via Hydro Tasmania's Poatina power station and is delivered via infrastructure owned by Tasmanian Irrigation, the government body established in 2008 resulting from the merger of the former Rivers and Water Supply Commission (RWSC) and the Tasmanian Irrigation Schemes (TIS) Pty Ltd.

CLIS is administered by a locally appointed board consisting of water rights holders and a Cressy-based management team. Water is allocated across the district via a water rights system which allows farmers and producers to consume a set volume of water within peak and off-peak seasons. Water can be traded - bought, leased or sold here.