Indicator 2.6.1

TN and TP in the feed are required for the calculations. TN and TP content in the feed should be obtained from the feed supplier.
The suitability of the TN and TP limits per tonne of production should be reviewed if the UoC is in a Type A waterbody and needs to implement corrective actions, in accordance with Indicator 2.6.13.
The annual limits may need to be reduced to prevent shifts in trophic status or correct increases in limiting nutrients.
Equipment used to measure TN and TP per tonne of production should be calibrated according to the technical specifications. The equipment used will be based on the formula used in Appendix 8 (8.2):
- Equipment is required for Formula 2 to measure TN and TP concentration in the influent and effluent water and the volume of the effluent water.
- Equipment is required for Formula 3 to measure TN and TP concentration in the influent and effluent water.

The formula (outlined in Appendix 8 (8.1)) used to determine the TN and TP load per tonne of production.
Results of the TN and TP load per tonne of production based on the relevant calculation.
Equipment to measure TN and TP load per tonne of production has been calibrated according to the manufacturer’s instructions, based on the formula used in Appendix 8 (8.2).

TN and TP load per tonne of production has been determined.
Species-specific limits have been adhered to (where applicable) over the previous 24-month period.
- TN and TP have been determined and reported where species-specific limits are not available.
The UoC has calibrated the equipment used to determine the TN and TP load per tonne of production, based on the formula used in Appendix 8 (8.2).