| Criteria | Seasonal Stream S1 at Tin Ha Au | Seasonal Stream S2 at Tin Ha Au |
| Naturalness | Natural | Natural |
| Size | The total length was 56 m with silty substratum | The total length was 98 m with rocky substratum |
| Diversity | Low for plant and no aquatic fauna recorded | Low for plant and no aquatic fauna recorded |
| Rarity | Nil | Nil |
| Re-creatability | Re-creatable | Re-creatable |
| Fragmentation | Not applicable | Not applicable |
| Ecological Linkage | Not functionally linked to any highly valued habitat in close proximity | Not functionally linked to any highly valued habitat in close proximity |
| Potential Value | Low ecological potential | Low ecological potential |
| Nursery/ Breeding Ground | None | None |
| Age | Not applicable | Not applicable |
| Abundance/ Richness of Wildlife | Nil | Nil |
| Overall Ecological Value | Low | Low |