Nitrogen Management for Irrigated Agricultural lands

The Coalition completed  its Groundwater Assessment Report in 2015 that determined those areas that were highly susceptible to nitrate from agriculture leaching into groundwater (High Vulnerability Areas).

All farmers who irrigate land within the Central Valley of California must complete an Irrigation and Nitrogen Management Plan (INMP) for any irrigated parcel of land.  If the parcel is located in High Vulnerability Areas for nitrate leaching, the INMP must be certified.  These plans are kept on the farm.    

Get help filling out this form

Irrigation and Nitrogen Management Plan Summary Reports (INMPSR) are reports to the Coalition on nitrogen application and use.  These reports as of January 1, 2020 are required for any parcel being irrigated and commercially farmed.

Get help filling out this form

Farm Evaluation Plans (FE) are required for any parcel being irrigated and commercially farmed.  These plans must be submitted to the Coalition every 5 years.  

Get help filling out the form. 

For irrigated parcels within High Vulnerability Areas, the Irrigation and Nitrogen Management plans must be certified by a Certified Crop Advisor who has the proper nitrogen management credential. Or a grower can self certify if he/she has completed the Grower Self Certification Class for Nitrogen Management.  The California Department of Food and Agriculture handle all the self-certifications.   

The Coalition analysis this information to determine if the growers are in compliance with the regulation of the Irrigated Lands Regulatory Program.  The Coalition then reports this analysis with required information to the Central Valley Regional Water Quality Board annually.