Caldwell Municipal Irrigation District

The Caldwell Municipal Irrigation District (CMID) serves specific subdivisions and communities within Caldwell.

Communities Served by CMID

To see whether your property is within CMID’s service area, view the full list of subdivisions and communities we serve:

Communities We Serve(PDF, 42KB)

If Your Community Is Not Listed

If you do not see your subdivision or community on the CMID list, your property is likely served by a different irrigation district. In that case, you will need to contact the appropriate irrigation provider directly.

Check Your Annual Irrigation Bill

Property owners typically receive an annual irrigation bill, which includes:

• The name of the irrigation district
• Contact information for your irrigation provider

This is often the easiest way to confirm which district serves your property.

If your property is not within CMID, one of the following districts may serve your community:

• Pioneer Irrigation District — (208) 459‑3617
• Caldwell Lateral Irrigation District — (208) 454‑3477
• Canyon Hill Irrigation District — (208) 459‑8542
• Riverside Irrigation District — (208) 722‑6553
• Wilder Irrigation District — (208) 459‑3421
• Golden Gate Irrigation District — (208) 407‑0004

Bills are mailed in February and are due April 1st each year.

(Dates are subject to change depending upon availability of water)

We anticipate receiving irrigation water to our pump stations and turning them on around April 15th - April 30th and will be shut off between October 1st and October 15th of each season. Customers may experience low pressure or water being on and off for the first couple of weeks while maintenance crews test lines. CMID will shut the lines off if repairs need to be made, so patience is requested.

• Administration Assessment: the administrative costs associated with operation of CMID.
• Base Assessment: based on the City’s cost to deliver the irrigation water. This is based on the acreage of the entire lot, regardless of the irrigated area.
• Pressure Assessment: based on the City’s cost to operate irrigation pump stations and pressurizing the irrigation water before it is delivered to customers.

CMID levies an irrigation tax against all lands in the district that are unpaid. Payment is due in full by April 1st of each active year. It is important for you to understand that Idaho Law requires you to pay irrigation taxes just as you are required to pay property taxes. CMID works under Idaho statute title 50-chapter18, 50-1801 -50-1835. If you do not pay your assessment, District will file a tax lien on your property. If assessments are not paid within three years after recording the delinquency at the County Recorder’s Office, Idaho Statue 50-1821 requires the City Clerk of City of Caldwell to issue to the District a tax deed to the property. To avoid the potential loss of title to the property through tax deed sale, the landowner must pay all unpaid liens or assessments. The purchaser of a tax deed at a tax deed sale holds all rights and title that the irrigation district acquired through the assessment and delinquency proceedings. Once the sale is complete and a deed of sale is delivered to the purchaser, any further action is between the landowner and the purchaser, not the landowner and the irrigation district.

CMID recommends watering every other day. Addresses ending with an odd number should water on odd days and addresses ending with an even number should water on even days. Some types of sprinkler timers have an odd/even setting. Select this and set watering times. It is important that Common Lots follow this schedule as well. This will help with pressure & keep pump stations on. Watering schedules are up to the HOA & Residents to manage together.

Contrary to popular belief, you do not need to irrigate every day. Irrigating every other day drives your grass roots deeper and makes your lawn more drought tolerant. Remember that irrigation laws and water rights in Idaho are based on farming, not landscape irrigation. When all residents in a development choose to irrigate at the same time, it overwhelms the system and may cause it to shut off.

5 A.M. - 9 A.M. & 8 P.M. - 10 P.M. Consider watering during non-peak hours to reduce the amount of water used and causing low pressure in the system.

The pumps are designed with a float system, so if water falls below a certain level the pump/motor will shut down to prevent damage to the system. The water right runs 24 hours a day 7 days a week. If everyone sets the sprinklers to run at the same time this causes high demand, low pressure and can over pump the water right shutting the system down. To prevent this from happening, users need to adjust their watering times to non-peak hours spread throughout the day/night. You can water during the heat of the day just increase the watering time 5 - 10 minutes for evaporation purposes. You can water at night just reduce the watering time, so fungus does not grow.

It will not be a priority to restart the PI if we are working on domestic or irrigation leaks, repairs etc. CMID will address it as soon as we have a service tech available.

This is considered a Non-Emergency. If a pump shuts down after dark CMID does not consider this an emergency and will not go out to turn a pump back on. This is for our safety, as some of our stations require us to check head gates etc. CMID will come out in the morning to restart the pump.

The assessment you pay each year is for the water right that comes with the property, and is regulated by State Code. Most land within the boundaries of CMID is under contractual obligation for the expense of the maintenance of the dams, canals and ditches, as well as the pressurized irrigation system. The pressurized system includes the maintenance of piping, pumps, motors, and electricity. (Ord. 2504, 7-6-2004)