| AQTS Grade | Description | |
| 30 | Good | Data is validated and may have been adjusted to calibration readings; but it has not been modified. |
| 20 | Fair | Data is a fair representation of actual events. |
| 15 | Poor | Data is an unreliable, poor representation of actual events. |
| 10 | Water Level Below Recordable Range | |
| 5 | Quality Unknown | Data is not validated/verified or is of unknown data collection standards. |
| 1 | Unverified Telem | Data that has not been verified/validated. |
| 0 | Undefined | |
| -1 | Unspecified | |
| -2 | Unusable | |
| -3 | Gap | |
| -5 | Outside Recordable Range | Data is known to be incorrect as the value is outside of the specified recordable range. |
| -6 | Outside Rating Range | |
| -10 | Not Operating | Instrument not operating or parameter not being recorded. |
| -15 | Missing | Data recording was attempted; but the data is missing, void or known to be incorrect. |
| Code | Description |
|---|---|
| 0 | Station data, as supplied by Bureau |
| 23 | Nearby station, data from BoM |
| 13 | Deaccumulated using nearby station |
| 15 | Deaccumulated using interpolated data |
| 35 | Interpolated from daily observations using anomaly interpolation method for CLIMARC data |
| 25 | interpolated daily observations |
| 75 | interpolated long term average |
| 26 | synthetic pan evaporation |