On the 17^th April 2018 Urban Water Solutions employees (and a few friends) volunteered an evening at FareShare kitchens (https://www.fareshare.net.au/) in Abbotsford. We prepared meals for people in need from rescued and donated food. In just under 2 hours over 1000 vegetarian sausage rolls were made and baked and cooked sausage rolls were packaged for distribution. Read more “Annual Community Volunteering”

Urban Water Solutions have extensive experience in the design and optimisation of Pressure Sewer Systems across the world and presented a session at the Water NZ Modelling Symposium on ‘Optimising the Design & Operation of Pressure Sewer Systems’.

Pressure sewer systems have been in use since the early 1970s and are now an established alternative to gravity sewers for difficult to sewer areas. By using time-based pump operation rules, it is possible to control the timing of pump operations. This allows the modulation of flows in the system and reduces the peak flows to the discharge point. Modulating the flow by controlling how many pumps will operate simultaneously throughout the day, results in smaller pipe diameters across the system and reduces the detention time of the sewage in the PSS pipe network. Read more “Ann Pugh presents at Water NZ Modelling Symposium in Christchurch.”

Just in time for the Christmas-New Year close Urban Water Solutions have completed the move into their new office at Level 1, 8 Gipps Street Collingwood.

With ample space for our growing team of modelling specialists the new office is located just around the corner from our old office.

While undertaking a recent modelling study Kiara undertook a sensitivity analysis comparing the use of the Ground Infiltration Model (GIM) and Fixed Runoff hydrology models within InfoWorks ICM to achieve calibration.

The flow data recorded indicated that there was a slower infiltration process occurring in the sewer, however as the GIM could only be calibrated to a small recurrence interval event there was little confidence in its ability to predict infiltration from the 5year design storm without further calibration.

The presentation discussed the theory behind the GIM, how it was applied for this project and why it was ultimately not adopted.