Clear Environmental Consultants Limited was founded in 2003 as a specialist consultancy in wastewater and environmental management. Clear was founded by Andrew Clements, David De Rosa and Jamie Margetts with the aim of creating a team of specialists and technical experts to deliver high quality, cost effective and innovative services.
Clear has been successful and has grown to service a number of UK Water Companies through direct framework appointments, plus a number of major public and private sector clients. Our success has been achieved by remaining true to our principles of delivering quality in an efficient manner.
As a small business, one of our key strengths is that all senior
staff and management remain fully ‘hands-on’ and engaged in technical
project delivery with both staff and clients. Clear’s staff provide a
wealth of specialist knowledge and expertise that is used to deliver
pragmatic solutions in wastewater and environmental management.
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Andrew is a founding Director of Clear and is Principal Modeller running a team of 10 modellers, graduates and technicians, working on a range of DAP and InfoWorks model build studies for United Utilities, Anglian Water, and Severn Trent Water. Andrew has extensive experience in InfoWorks, InfoNet, MapInfo and MapBasic. Andrew is heavily involved in developing innovative techniques for DAP data analysis, developing automated routines for network cleanup, interpolation, structural analysis and impermeable area definition.
Andrew has over 15 years experience in hydraulic modelling, and has
built and verified models for most Water Companies in the UK. Andrew is
the Director with the responsibility for QA within Clear, and was
responsible for the production of our in-house model build, verification
and DAP procedures. These procedures are used as the basis for
achieving consistency and quality, for training graduates in first
principles, before aligning with the nuances of specific client
David De Rosa
Flood Risk & Drainage
David De Rosa, with over 20 years experience in the wastewater industry, is a founding Director of Clear and has managed and been technically involved in a number of InfoWorks wastewater modelling and drainage design studies. Currently, David is commercial and programme manager for the Severn Trent DAP Framework, Anglian Water Network Modelling Framework and United Utilities Model Maintenance Framework. One of David’s roles is to work with clients to develop long term programmes of work to optimise the use of survey, contractor and consultant resources to deliver efficiencies.
David has a keen interest in sustainable drainage, and regularly
undertakes outline and detailed designs for site-specific SuDs
solutions. David also has overarching responsibility for the flood risk
and ecology divisions at Clear, and spends part of his time coordinating
integrated studies for local authorities and private developers, who
require drainage, river modelling and environmental impact expertise.
Jamie Margetts is a founding Director of Clear and has over 12 years experience in wastewater modelling. During this time he has been principal modeller, technical manager and now Technical Director on a large number of wastewater and sewer modelling studies. Jamie has extensive experience in InfoWorks, HydroWorks, InfoNet, SIMPOL, UPM Tools and StormPac. As Technical Director on the Severn Trent and United Utilities DAP Frameworks, Jamie is responsible for ensuring the high standard of models for which Clear is known to produce. Jamie co-ordinates internal audits, reviews every modelling report and is responsible for innovation to improve processes and deliver efficiencies within the modelling programme.
Jamie is R&D Coordinator for WaPUG, and is well known
within the water industry as a modelling technical expert, having
presented over 30 technical papers and led numerous workshops on
integrated urban drainage, runoff modelling and rainfall modelling.
Jamie has recently edited the WaPUG Integrated Urban Drainage Modelling
Guide. Jamie has a strong interest in integrated urban drainage, and has
been involved in numerous CIRIA, UKWIR, FWR and DEFRA workshops and
forums developing strategy and technical methodologies for the
IUD and SWMPs.
Steve is a Chartered Civil Engineer with over 20 years professional experience in the UK Water Industry with the majority relating to drainage and wastewater projects. He started his career within a Local Authority working as Sewerage Agents for Severn Trent Water where he gained a considerable range of experience of hydraulic modelling, feasibility, design, contract documentation, construction supervision and contract administration implementing sewerage projects ranging in value from £30,000 to £2.5 million.
Having moved into the consulting sector, in recent years Steve has balanced a continuing technical delivery role with that of Framework Manager delivering Severn Trent Water’s Drainage Area Planning programme in AMP3 and AMP4, as well as Anglian Water’s Asset Planning Support Framework in AMP4. More recently Steve’s commercial experience has been utilised further filling the role of Framework Director on a number of major Asset Management Frameworks with Yorkshire Water, Wessex Water, South West Water, Anglian Water, Welsh Water and Severn Trent Water.
Steve has a significant amount of experience in Business Operations throughout his recent career and has specific responsibilities in Clear for the financial management and financial performance of the business, as well as compliance with our governance processes and helping to continue the growth of the company.
John is Principal Modeller running a team of 10 modellers, graduates and technicians, working on a range of DAP and model build studies for United Utilities, Anglian Water, and Severn Trent Water. John has over 15 years experience in hydraulic modelling in InfoWorks and InfoNet, and has built and verified models as part of DAPs for most Water Companies in the UK. John has a particular interest in flow monitoring and the collection of accurate data for sewer model verification. John has developed techniques to test the calibration of flow data, improving flow estimates in non-standard pipe shapes, and has trialled live flow monitoring and web access technology for Severn Trent Water.
One of John’s roles is to ensure that correct resources are utilised on
each aspect of a modelling job within his team. John is actively
involved in many model verifications within the team, and also
responsible for QA checks on the models and reports produced within the
team. John is often involved in more detailed modelling applications to
assist capital delivery and the detailed design process; recently
undertaking highly detailed InfoWorks modelling for siphons, tunnels and
Iain leads Clear's Glasgow office, overseeing a growing team of experienced modellers working on Drainage Area Studies, model maintenance and scoping studies primarily for Scottish Water. Iain has 14 years hydraulic modelling and sewer data collection experience for a range of UK Clients. These projects have ranged from Drainage Area Studies, flow and manhole surveys, scoping studies, flow and load studies, Development Impact Assessments through to more strategic large catchment projects.
The Clear Glasgow Office has been set up in partnership with Mott MacDonald and consists of staff from both companies. Iain has previously been seconded into Scottish Water in a Technical Manager role and is using this experience to develop this partnership while ensuring the technical quality of all outputs from the team.
Ecology - Ecology Team Leader
Oliver leads Clear's Ecology department and manages a team of experienced ecologists. Oliver has a broad ecological and management skillset, with specialist expertise in areas such as Invasive Species, Habitat Restoration and European Protected Species surveying, licensing and mitigation design. Oliver has valuable experience in project, financial and personnel management and is at ease in a client facing role, whether during the tender process or maintaining good lines of communication throughout the lifespan
of a project.
Oliver believes in engaging fully and early with clients to achieve the best results for their projects. Careful planning and discussion has helped his clients avoid delays to their projects and in several cases delivered them large cost savings. This has been most effectively provided by input into the project design and master planning processes.