Storm Overflow

EDM compliance made simple

We support water companies in ensuring event duration monitoring (EDM) systems are installed correctly, configured accurately, and fully compliant with regulatory standards.

Our work covers sensor calibration, MCERTS inspections, and full system checks to make sure you’re capturing spill data accurately and reliably.

Meeting U_MON3 and U_MON6 Requirements

MCERTS certification is now a legal requirement for many EDM systems.  These monitoring requirements comprise of: 

U_MON3

Initial legislation requiring MCERTS event duration monitoring on storm overflows at wastewater treatment works inlets.

U_MON6

New requirements extending MCERTS event duration monitoring to pumping station storm overflows.

What we deliver

We provide experienced support at every stage of the storm monitoring process.

We tailor each visit to the site’s configuration and compliance requirements, giving practical advice and clear outcomes.

MCERTS inspections for U_MON3 & U_MON6 EDM installations

Spill monitoring equipment calibration

Commissioning support and troubleshooting

Clear, audit-ready reporting

Why choose Flowcheck?

We understand the importance of accurate storm spill monitoring and the pressure that comes with Environment Agency reporting.  With years of experience calibrating CSOs, EDMs, and stormwater outfalls, our team knows what to look for and how to get it right.

Clients choose Flowcheck because we offer:

Get in touch

Need to check your storm spill monitoring equipment?  We’re here to help.