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Total Nitrogen Applied (TNA) Report / Irrigation and Nutrient Management Plan (INMP) Summary Report

TNA

Growers required under Ag Order 3.0 to submit a Total Nitrogen Applied (TNA) Report for their ranch must continue to submit reporting, regardless of assigned ranch Groundwater Phase Area.

Growers are required to monitor the total amount of nitrogen applied to their ranch and report information to the Water Board in a Total Nitrogen Applied (TNA) Report. This requirement is phased in, based on assigned ranch Groundwater Phase Area. Required reporting includes nitrogen applied to crops from all sources such as fertilizer, organic fertilizer, compost, irrigation water, as well as additional information.

Please refer to the links below, and the Compliance Calendar, for additional details and dates for each Groundwater Phase Area.

INMP

Growers are required to monitor the total amount of nitrogen applied and removed from their ranch and report information to the Water Board in an Irrigation and Nutrient Management Plan (INMP) Summary Report. This requirement is phased in, based on assigned ranch Groundwater Phase Area. The INMP Summary Report satisfies the TNA Report requirement; therefore, an additional, separate TNA Report is not required to be submitted when the INMP Summary Report is submitted. Eventually, all growers will be submitting INMP Summary Reports regardless of assigned ranch Groundwater Phase Area. Required reporting includes nitrogen applied to crops from all sources, nitrogen removed from the field for each specific crop, as well as additional information

Please refer to the links below, and the Compliance Calendar, for additional details and dates for each Groundwater Phase Area.

  • Irrigation and Nutrient Management Plan (INMP) Summary Report Instructions - coming soon
  • Crop Nitrogen Removal Conversion Coefficient Standard Protocols (English | Español | 中文)