Inflow & Infiltration Studies
Find where stormwater and groundwater enter the sewer, and how much, so investment goes where it counts.
EDS specialises in identifying and addressing the challenges of sewer inflow and infiltration (I&I). Excess stormwater and groundwater entering sewer systems remains one of the most costly and complex challenges for councils and utilities across Australia.
Our team provides practical solutions to manage and mitigate the effects of I&I, protecting the environment and keeping the system efficient.
Our I&I services
What you gain
Results from the field
Twenty short term flow meters and on-site rain gauges showed three subcatchments carried 65% of the I&I. Capital went into relining and inflow reduction instead, and peak wet weather flows fell 35% within two years.
How a program runs
From the first call to data you can act on.
- 01
Scope and site selection
Agree what the data has to answer, then choose sites by their hydraulics, not their convenience.
- 02
Install and commission
Trained EDS crews install intrinsically safe instruments, Australia wide, and check every site before it goes live.
- 03
Monitor and validate
Readings arrive over 4G into FlowSense, with continuous QA/QC and alarms when something changes.
- 04
Report and recommend
Validated data and a report that shows where the problems are and what to fix first, or a feed into your model by API.
Try it
Watch inflow and infiltration happen.
Send a storm through a model catchment and watch the hydrograph respond. The gap between measured flow and the dry weather pattern is inflow and infiltration: water that should never have reached the sewer.
An illustrative model of a 600 mm sewer, not live data. Flow is wetted area multiplied by velocity, the way an area-velocity flow meter measures it.
Talk to the people who measure it.
Tell us about your network, site or project. A real person from our team will come back to you.