News Flash

City of Nampa

Posted on: April 6, 2023

Irrigation Customers Can Expect Water By End of April

City of Nampa Irrigation Delivery 2023

Irrigation districts are beginning to release water into our canal system and City of Nampa irrigation customers can expect to access full pressure for this service by the end of April. 

Crews will first need to test the lines, flush the system and bring ditch pumps online. Crews will work to ensure the water lines are functioning properly and may need to temporarily shut down a line for repair. These temporary closures are needed occasionally as crews work to bring the system to full operation and are a normal part of the process each year. 

Irrigation water supplied through our irrigation system is a necessary and critical resource to farmers, homeowners and businesses in our community. The City of Nampa receives the majority of its irrigation water from canals and ditches supplied from mountain reservoirs like Arrowrock, Lucky Peak and Anderson Ranch. Pumps draw water from the canals and ditches to provide pressurized service to customers. While subject to change, Nampa-Meridian Irrigation District plans to release water into the canals April 5, Pioneer Irrigation District on April 10, and Boise-Kuna Irrigation District no earlier than April 10. Depending on the number of repairs or maintenance related items needed, customers can expect full pressure on approximately April 28, 2023. The length of the irrigation season is dependent on water in the reservoirs and canals.

REMINDERS FOR IRRIGATION CUSTOMERS: Nampa residents are asked to check the programming of their sprinkler control box to ensure they are not over-watering. If customers notice a leak, they are encouraged to call the 24-hour hotline at 208-468-5860. Please know that, due to the volume of calls, it may be necessary to leave a voice message. Staff will return calls as soon as possible. Customers requiring assistance setting a sprinkler control box are encouraged to contact a local landscaping professional. Residents are also strongly encouraged to install their own shut-off valve to control sprinkler lines and are asked not to operate the city valve, as this is for emergency use only. 

For more information on the irrigation season, irrigation assessment or water conservation tips, please visit

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