To read about a few of the projects BlueLine Drains have successfully completed, check out the below. Stormwater Investigations Contract - 35.1km Wastewater Treatment Plant Inlets Project Wastewater Investigations Project – 20.6km CCTV Inspections Jetting & Suction Hydro Excavation Trenchless Patch Repairs Flow Reduction Manhole Repairs Confined Space Entries Traffic Management