Nampa irrigation season will begin April 2

March 28, 2014 

The city of Nampa will begin its irrigation season by filling its pressurized system on April 2.

The Nampa Meridian Irrigation District plans to release water into the canal system on April 7. However, officials are saying it could take up to two weeks before the water is available for pump operations. Irrigation customers should have irrigation water at full pressure by mid-April after crews have tested lines, flushed the system and brought ditch pumps on line.

As crews find problems with water lines they shut them down for repairs. This can result in customers having water one day and not the next. District officials are asking customers to be patient and to call the 24-hour hotline, 468-5860, if they notice a leak. All Nampa residents are asked to check the programming of their sprinkler control box to make sure they're not over-watering. Those who need help setting a sprinkler control box should contact a lawn care professional. Residents are also strongly encouraged to install their own shutoff valve to control sprinkler lines and not to operate the city valve as this is for emergency use only.

For more information on the irrigation season, irrigation assessment or wise water use, visit

The city of Nampa receives the majority of its irrigation water from canals and ditches supplied from mountain reservoirs like Arrow Rock, Lucky Peak and Anderson Ranch. Pumps draw water from the canals and ditches to provide pressurized service to the city’s customers. The length of the irrigation season is dependent on water in the reservoirs and canals.

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