Meet

our team

The people that make Critical Flow work.

Chris Corris

Managing Director and Senior MCERTS Inspector

Chris joined the company in 1999. He wrote and developed early versions of flow software, which is still the base of today’s Mflow software used by CFS.

Chris became an MCERTS Inspector in 2005. Sitting on the MCERTS steering group, working with the Environment Agency, Natural Resources Wales and the Water Utilities he is involved with continually improving the scheme.

He works closely with Severn Trent and Thames Water to meet their MCERTS requirements and has worked with several power generation companies to develop a ‘Pump Run Time’ method to report their flow data.

Marcus Harding

Senior MCERTS Inspector

Marcus joined the team in 2003, having gained a wealth of experience working for Wessex Water for 15 years. Marcus became an MCERTS inspector shortly after joining us in 2005.

Marcus continues to work closely with Wessex Water and other non-water utilities in the South West region.

An early champion of the Panametrics flow meter, Marcus is also an expert in the operation of clamp on ultrasonic flow meters.

Aaron Hiden

Senior MCERTS Inspector

Aaron has over ten years experience in working with Flow Monitoring and MCERTS certification and became a qualified MCERTS inspector in 2011.

He works throughout the sector and has run several large projects in clean water network compliance, flow4 and Event Duration (Storm) Monitoring.  

Recently, Aaron worked on the UKWIR Research Project, developing flow models which demonstrate flow to treatment for Flow4 compliance.

Phil Rose

Senior MCERTS Inspector

Phil joined CFS straight from University in 2008 as a trainee MCERTS Inspector, becoming fully qualified in 2011.

Phil works closely with teams in Dwr Cymru (Welsh Water) to meet their MCERTS compliance.

Phil is trained as a Principal Designer to aid compliance with the CDM regulations, and in addition to managing the MCERTS certification program, has designed and overseen the installation of many complex civil projects.

Lucy French

MCERTS Inspector

Lucy joined us straight after university and qualified as an MCERTS Inspector in 2018. She now has a young family so has moved into our planning team and now manages site visits for South West Water.

Tamas Borondi

MCERTS Inspector and Quality Standards

Tamas graduated from Budapest University of Technology and has a Masters qualification in Quality Standards. He qualified as an MCERTS Inspector in 2018.

Instrumental in achieving ISO 9001 and ISO 14001 certificates for the company, he continues to be involved in all aspects of quality standards and compliance.

Recently, Tamas oversaw the UKAS calibration of our test rig flow meter, this enables us to calibrate all of our equipment to National Standards.

Kate Davies

MCERTS Inspector

Kate is an Oxford University graduate and joined us in 2019. She very quickly moved through our training programme to qualify as an MCERTS Inspector in 2021. She has experience in all sectors and is now helping to train our current trainees.

Alex Storrer

Assistant MCERTS Inspector

Alex is moving towards becoming an MCERTS Inspector.  He has been with us since 2017 and has a lot of experience in all sectors.

Mihai Both

Assistant MCERTS Inspector and Project Manager

Mihai joined us in 2018 as a trainee and moved on to becoming an Assistant MCERTS Inspector.  Whilst he still carries out site work from time to time he is now a Project Manager and organises site visits for some of our water utility customers.

Amanda Taylor

Project Manager

Amanda joined us in 2022.  She is an experienced Project Manager and helps deliver the Critical Flow MCERTS Inspection program for some of our Water Utility customers.  Amanda's qualifications include BA(Hons) Communications and PRINCE2 Foundation.

Ed Moncrieff

Trainee MCERTS Inspector

Ed joined us in 2020 as a trainee MCERTS Inspector. He has a BSc degree in Geography from The University of Portsmouth. Ed has lots of experience in flow measurement after carrying out numerous site visits under a variety of EA environmental schemes as part of his training.

Sam Lawson

Trainee MCERTS Inspector

Joined us in 2021 as a Trainee MCERTS Inspector. He recently graduated from the University of the West of England with a degree in Civil Engineering.

Bobaker Salah

Trainee MCERTS Inspector

Bob joined us in 2021 as a Trainee MCERTS Inspector.  He has two degrees, BEng (Hons) in Manufacturing Engineering and MSc in Petroleum Refining Systems Engineering.

Tom Green

Trainee MCERTS Inspector

Joined us in 2022 as a trainee MCERTS Inspector. He recently graduated from Swansea University with a degree in Geography.

Joe Ramsden

Trainee MCERTS Inspector

Joe has an undergraduate degree in environmental science and a Master’s in River Environments and their Management. Joe was previously a pub manager but is now using his education with Critical Flow. He is excited to learn and develop within the water industry and is looking forward to furthering his career with us, learning more about flow measurement, policy and legislation.

Charlie Howe

Trainee MCERTS Inspector

Joined us in 2023 as a Trainee MCERTS Inspector. He recently graduated from the University of East Anglia with a degree in Environmental Science.