RITE Advice can provide waste assessments with a prescribed level of confidence as part of the assessment process. The level of confidence is a percentage value of assurance (e.g. 95%) that the true mean values of each dataset are not above the reported values. Sometimes a level of confidence is required under the waste quality plan of an organisation or project

The waste assessment process can be broken down into its constituent parts (such as the sensor characteristics, the measurement technique, the monitoring regime, the fingerprint and the decision process) and the associated errors compounded to produce the final variance for the prescribed confidence level.

The Nuclear Industry Code of Practice (Clearance and Exemption, Principles, Processes and Practices - login and download from the Registered User Resources section of this website) recommends a confidence level for waste materials to be sentenced as exempt as 95%.

RITE Advice can provide comprehensive confidence-based waste assessment systems using optioneering techniques designed to achieve the best practicable means of waste assessment. For this option a waste assessment version of the Data Quality Objectives process (see Land Quality Assurance) is employed.