In Boise, irrigation water is diverted from the Boise River and distributed by large irrigation canals and smaller irrigation laterals to local neighborhoods throughout the city. Subdivisions built in the last 10 years are eligible to hook up to the pressure irrigation system. The Boise Public Works Department has design standards for constructing pressure irrigation systems in new subdivisions.
Pressure irrigation water is not water from the drinking water system (operated by Suez Water or the Capitol Water Company). If your neighborhood has pressure irrigation, it has a second water system for irrigation which is completely separate from the drinking water system. Property owners connect to the pressure irrigation system and use it to irrigate their property.