Catchment Facts
Total area: 2,974km2- Stream network length: 6,056km
- Local Councils: Toowoomba Regional Council, Lockyer Valley Regional
- Council, Somerset Regional Council, Ipswich City Council
- Dominant land uses: native bush, grazing, intensive agriculture, rural residential
- The upper catchment remains forested
- Mid and lower catchment has been largely cleared
- The catchment has the highest proportion of land used for intensive agriculture in SEQ; irrigation has regulated water flow and changed groundwater dynamics
- Numerous impoundments are present in the catchment
- Instability of stream banks and gully erosion due to degradation of the riparian vegetation
Freshwater results
D Lockyer Catchment
Streams generally in poor condition despite increases in physical/chemical, macroinvertebrates and fish indicators.