Spillages and pollution incidents that result from sewer blockages can have devastating consequences, particularly when these incidents happen customer-side.

Cleaning up these incidents can be expensive, and additionally, every time a customer calls in to report an overspill (either CSO or SSO) it has an impact on the water company’s Output Delivery Incentives (ODIs), which if not achieved will lead to strict financial penalties.

At HWM, we have pioneered intelligent technology to help you monitor and prevent surcharge and spill events, ensuring cost-effective compliance and damage limitation.

Event duration monitoring at Combined sewer overflows

When deployed to conduct Event Duration Monitoring at Combined Sewer Overflows (CSO), SonicSens 3 alerts to surcharges, reporting event occurrence, time and duration, and because it avoids contact with its environment there is little need for scheduled maintenance.

ATEX (Zone 0) certified for use in hazardous environments, SonicSens 3 is dependable and, when paired with our ATEX Battery Pack, can deliver accelerated sample rates and increased dial-in frequency whilst maintaining a five-year battery life.

small sewer/customer-side incident prevention monitoring

Installed at a critical height in a chamber, SpillSens uses digital positioning technology to monitor sewer levels constantly and effectively.  Programmed with three alert levels, SpillSens indicates green when conditions are normal, amber when levels are rising and red when critical levels are reached.

Ideal for Incident Prevention Monitoring, SpillSens supports compliance with Outcome Delivery Incentives and helps protect the environment by reducing pollution incidents.

ATEX (Zone 0) certified, SpillSens is dependable and, when paired with our ATEX Battery Pack, can deliver accelerated sample rates and increased dial-in frequency whilst maintaining a five-year battery life.

multi-parameter telemetry data logging

HWM has developed a range of multi-application data logging solutions to support our clients in efficiently monitoring their networks.  Whether for preventing surcharges and spill events, or for CSO or customer-side small sewer monitoring, HWM can deliver a dependable data logging solution.

Each of our data loggers is battery-powered, meaning that they can be installed anywhere, without requirement for ATEX-compliant mains power connections. This self-reliance makes our data loggers particularly suitable for challenging sewer environments.

For consistent, low-powered data transmission, each of our data loggers benefits from our advanced modem, which is capable of connecting via NBIoT and LTE-M. Fully roaming, our SIM connects to the strongest network available to deliver data, and can even roam cellular technology generations, so it an NBIoT signal is not achievable then the strongest available 2G connection is made.