| 1 | 518 | GWChemicalExemptionType_Enum | GWD Article 6(3) - Interventions in surface waters |
| 2 | 519 | GWChemicalExemptionType_Enum | GWD Article 6(3) - Measures: disproportionate cost |
| 3 | 520 | GWChemicalExemptionType_Enum | GWD Article 6(3) - Measures: increased risk |
| 4 | 521 | GWChemicalExemptionType_Enum | GWD Article 6(3) - Small discharges |
| 5 | 638 | GWChemicalExemptionType_Enum | GWD Article 6(3) - Accidents / exceptional circumstances |
| 6 | 639 | GWChemicalExemptionType_Enum | GWD Article 6(3) - Artificial recharge / augmentation |
| 7 | 640 | GWChemicalExemptionType_Enum | GWD Article 6(3) - Direct discharges |
